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OBJECTIVE To analyze the current status， hotspots and development trends of research on the treatment of non-alcoholic fatty liver disease （NAFLD）， providing reference for subsequent research. METHODS Searching the Web of Science database， the literature related to the treatment of NAFLD from the establishment of the database to December 31， 2022 were collected. CiteSpace 6.1.R6 was used to construct a visual atlas， perform collaborative network analysis on authors， countries and institutions， and conduct keyword co-occurrence， clustering and emergence analysis to explore its research status and hotspots. RESULTS A total of 3 882 articles were included， and the number of publications had been increasing year by year. The top three countries in terms of publication volume were China， the United States， and Japan. The author with the highest volume of publications was Sanyal from the United States （37 articles）， while the institution with the highest volume of publications was the University of California， San Diego （75 articles）. A closely connected research team abroad mainly conducted large-scale randomized controlled trials （RCT） to evaluate the effectiveness and safety of various interventions， including medication and lifestyle， in treating NAFLD. However， domestic researches mainly focused on basic researches about the treatment of NAFLD with effective medicinal ingredients， and were characterized by traditional Chinese medicine. There were relatively few high-quality large-scale RCT studies related to it. Keyword analysis showed that researches in various countries mainly focused on regulating liver oxidative stress and inflammation， improving the overall balance of glucose and lipid metabolism. Except for hypoglycemic drugs， drugs that act on various comprehensive metabolic homeostasis targets in the body had entered clinical research， and had enormous therapeutic potential. CONCLUSIONS The research on NAFLD treatment continues to grow in popularity and tends to research targets and drugs for regulating systemic metabolic homeostasis. As the main force of research， China should strengthen communication with the international community， grasp the trends and directions of basic research， attach importance to clinical research， and continuously tap the therapeutic potential of traditional Chinese medicine.
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In order to strengthen the supervision of the use of drugs in hospitals，the Sichuan Academy of Medical Sciences· Sichuan Provincial People’s Hospital took the lead in compiling the Principles for the Rational Use of National Key Monitoring Drugs （the Second Batch） with a number of experts from multiple medical units in accordance with the Second Batch of National Key Monitoring Rational Drug Use List （hereinafter referred to as “the List”） issued by the National Health Commission. According to the method of the WHO Guidelines Development Manual， the writing team used the Delphi method to unify expert opinions by reading and summarizing the domestic and foreign literature evidence of related drugs， and applied the evaluation， formulation and evaluation method of recommendation grading （GRADE） to evaluate the quality of evidence formed， focusing on more than 30 drugs in the List about the evaluation of off-label indications of drugs， key points of rational drug use and key points of pharmaceutical monitoring. It aims to promote the scientific standardization and effective management of clinical medication， further improve the quality of medical services， reduce the risk of adverse drug reactions and drug abuse， promote rational drug use， and improve public health.
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E-cigarettes have gained considerable popularity worldwide recently， which have also drawn the attention of adolescents and pregnant women. However， recent studies have uncovered the negative effects of e-cigarettes on our cardiovascular system， respiratory system， nervous system， blood system and so on. Furthermore， several studies indicate that e-cigarettes can significantly impair users’ reproductive ability. In this review， we collected the most recent studies on the effects of e-cigarettes on reproductive system based on human studies， animal studies and in vitro preclinical studies. In addition， the review shows the urgency of setting e-cigarettes exposure standards. As a result， we recommend setting strict limits on the production and sales of e-cigarettes， thus encouraging consumers to consume reasonably.
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ObjectiveTo systematically review the intervention effect of Chinese medicine on the structure and function of testicular Sertoli cells in animal models of impaired spermatogenesis. MethodThe databases， such as China National Knowledge Infrastructure （CNKI），VIP，Wanfang Data，EMbase，and Pubmed，were searched for experimental studies on the effect of Chinese medicine on the structure and function of testicular Sertoli cells in animal models with impaired spermatogenesis. The included studies were evaluated for risks of bias，and the outcome indicators were analyzed with RevMan and Stata software. ResultThirty studies were included，involving 37 randomized controlled trials （RCTs）. As indicated by the Meta-analysis results， compared with the model group，Chinese medicine increased sperm density（SMD=2.42，95% confidence interval（CI）［1.47，3.37］，P<0.000 01）， promoted sperm motility（SMD=2.35，95%CI ［1.70， 2.99］，P<0.000 01）， up-regulated the protein and mRNA levels of Vimentin （related to Sertoli cell cytoskeleton）， elevated the levels of Occludin and Claudin-11 （related to tight junction of blood-testis barrier）， boosted the levels of β-catenin and N-cadherin （related to adherens junction of blood-testis barrier）， raised the level of connexin 43 （Cx43， related to gap junction of blood-testis barrier）， improved the function of Sertoli cells， increased the serum content of Inhibin B （INHB）， and up-regulated the levels of testicular follicle-stimulating hormone receptor （FSHR）， INHB mRNA， androgen-binding protein （ABP） mRNA， transferrin（TF），stem cell factor（SCF），SCF mRNA，glial cell line-derived neurotrophic factor （GDNF），GDNF mRNA，bone morphogenetic protein 4（BMP4），and BMP4 mRNA （P<0.05）. ConclusionChinese medicine can effectively increase sperm density and motility of animal models of impaired spermatogenesis，and improve the structure and function of testicular Sertoli cells. However，affected by the quality of the included studies，the above conclusion needs to be further verified by relevant high-quality studies.
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Objective To investigate the risk factors for intraoperative hypotension (IOH) in patients undergoing double plasma molecular adsorption system (DPMAS) artificial liver support therapy. Methods Clinical data were collected from 181 patients (670 cases in total) who underwent DPMAS artificial liver support therapy in Liver Disease Center of The First Affiliated Hospital of University of Science and Technology of China from October 1, 2017 to December 31, 2020, and according to the presence or absence of IOH during DPMAS therapy, they were divided into IOH group with 70 patients and non-IOH group with 111 patients.Clinical indicators were compared between the two groups and their association with IOH was analyzed; prognosis was analyzed at 12 and 24 weeks.The independent samples t -test was used for comparison of normally distributed continuous data between groups, and the Mann-Whitney U test was used for comparison of non-normally distributed continuous data between groups; the chi-square test was used for comparison of categorical data between groups.Univariate and multivariate Logistic regression analyses were used to investigate the risk factors for IOH.The Kaplan-Meier method was used to plot receiver operating characteristic (ROC) curves, and the Z test was used for comparison of the area under the ROC curve (AUC) of independent risk factors. Results The univariate Logistic regression analysis showed that female individuals, individuals aged ≥50 years, and individuals with normal or low body mass index (BMI) tended to have a higher risk of IOH (all P < 0.05), and the multivariate analysis showed that normal or low BMI (odds ratio [ OR ]=3.290, 95% confidence interval [ CI ]: 1.523-7.108, P =0.002) and female sex ( OR =5.146, 95% CI : 2.316-11.432, P < 0.001) were independent risk factor for IOH in patients undergoing DPMAS artificial liver support therapy.The ROC curve analysis of female sex+BMI ≤24 kg/m 2 showed that it had an AUC of 0.639 in predicting IOH ( P =0.002).The patients experiencing IOH had a 12-week survival rate of 55.77%(29/52) and a 24-week survival rate of 50%(26/52), and there were significant differences between the two groups in 12-and 24-week survival rates (12-week: 76.53% vs 55.77%, χ 2 =6.887, P =0.009;24-week: 74.49% vs 50.00%, χ 2 =9.080, P =0.003). Conclusion The risk of hypotension was higher in female patients and that with normal or low BMI during DPMAS artificial liver therapy.Patients with IOH had poor survival prognosis at 24 weeks after DPMAS therapy.
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Objective:To evaluate the effect of TBK1 overexpression on hypoxia-reoxygenation (H/R) injury in isolated mouse cardiomyocytes subjected to high glucose and the relationship with mitochondrial autophagy.Methods:Normally cultured log-phase HL-1 mouse cardiomyocytes were inoculated in a 6-well plate at a density of 1×10 6 cells/ml and were divided into 4 groups ( n=10 each) using a random number table method: control group (group C), high glucose group (group HG), high glucose and H/R group (group HG+ H/R), and TBK1 overexpression group (group TBK1). The cells were incubated in culture medium with 1% fetal bovine serum and 1% double antibody for 24 h when the cell density reached 50%.When the cell density reached 80%, pcDNA3.1 (+ ) was used as a vector to achieve TBK1 overexpression.The cells were cultured with high glucose medium (33 mmol/L) for 24 h, exposed to 94% N 2+ 5% CO 2+ 1% O 2 for 24 h in an incubator at 37℃ followed by 12 h reoxygenation in an incubator containing 5% CO 2 at 37°C to establish the model of H/R injury to cardiomyocytes subjected to high glucose.After reoxygenation, CCK-8 assay was used to detect cell viability, the activity of lactic dehydrogenase (LDH) in supernatant was detected using LDH kit, mitochondrial contents were determined using Mito-Tracter green fluorescent probe, and the expression of TBK1 and mitophagy-related proteins PINK1, Parkin, LC3B and P62 was detected by Western blot. Results:Compared with group C, the cell viability was significantly decreased, the activity of LDH in supernatant was increased, mitochondrial contents were decreased, the expression of TBK1, PINK1, Parkin and LC3B was down-regulated, and the expression of P62 was up-regulated in HG group and HG+ H/R group ( P<0.05). Compared with group HG, the cell viability was significantly decreased, the activity of LDH in supernatant was increased, mitochondrial contents were decreased, the expression of TBK1, PINK1, Parkin and LC3B was down-regulated, and the expression of P62 was up-regulated in group HG+ H/R ( P<0.05). Compared with group HG+ H/R, the the cell viability was significantly increased, the activity of LDH in supernatant was decreased, mitochondrial contents were increased, the expression of TBK1, PINK1, Parkin and LC3B was up-regulated, and the expression of P62 was down-regulated in group TBK1 ( P<0.05). Conclusion:The mechanism by which TBK1 overexpression reduces the H/R injury is related to restoring mitophagy in isolated mouse cardiomyocytes subjected to high glucose.
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Objective To observe the 24-week survival status of patients with hepatitis B virus-related acute-on-chronic liver failure (HBV-ACLF) treated with plasma exchange (PE) and double plasma molecular adsorption system (DPMAS) alone or in combination, and to establish a predictive model for 24-week prognosis. Methods Related clinical data were collected from 133 patients with HBV-ACLF who received PE and DPMAS alone or in combination in The Affiliated Provincial Hospital of Anhui Medical University from January 2015 to December 2019, and according to the survival status at the 24-week follow-up after treatment, they were divided into survival group with 71 patients and death group with 62 patients. A total of 55 patients with HBV-ACLF who received PE and DPMAS alone or in combination in The Second Affiliated Hospital of Anhui Medical University from January 2018 to January 2020 were enrolled as validation group to validate the performance of the model. Related clinical data included mode of artificial liver support therapy, age, sex, total bilirubin (TBil), international normalized ratio (INR), creatinine (Cr), serum sodium, platelet count (PLT), albumin (Alb), and presence or absence of ascites, hepatorenal syndrome, hepatic encephalopathy, and gastrointestinal bleeding. The t -test was used for comparison of normally distributed continuous data between two groups, and the Wilcoxon rank-sum test was used for comparison of continuous data with skewed distribution between two groups; the chi-square test and the Fisher's exact test were used for comparison of categorical data between groups. The Cox regression model was used to analyze the influencing factors for the prognosis of HBV-ACLF patients after PE and DPMAS alone or in combination and establish a predictive model; the receiver operator characteristic (ROC) curve was plotted and the DeLong method was used to compare the area under the ROC curve (AUC) between the new predictive model and Model for End-Stage Liver Disease (MELD)/MELD combined with serum sodium concentration (MELD-Na) scores. Results At 24 weeks after treatment, 71 patients survived and 62 patients died in the modeling group. The Cox regression analysis showed age (hazard ratio [ HR ]=1.030, P =0.013), TBil ( HR =1.018, P < 0.001), INR ( HR =1.517, P < 0.001), and PLT ( HR =0.993, P =0.04) were independent influencing factors for 24-week survival. According to the results of the Cox regression analysis, a prognostic model for HBV-ACLF patients treated with PE and DPMAS alone or in combination was established as ATIP=0.029×age (years)+0.018×TBil (mg/dL)+0.417×INR-0.007×PLT (10 9 /L). Both the modeling group and the validation group showed that the ATIP model had a better predictive performance than MELD and MELD-NA scores(all P < 0.05). Conclusion Age, TBil, INR, and PLT are independent influencing factors for the 24-week survival of HBV-ACLF patients treated with PE and DPMAS alone or in combination, and the ATIP model has a good performance in predicting the 24-week prognosis of HBV-ACLF patients treated with PE and DPMAS alone or in combination.
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Objective To explore the treatment of pancytopenia and liver injury induced by methimazole and provide medication therapy reference for clinical pharmacists in clinical practice. Methods The clinical pharmacists provided clinical interventions by the evaluation of adverse drug reactions, assessment of the therapeutic effects, adjustment of therapeutic regime based on the patient′s disease condition. Results The physician adopted the recommendations from the clinical pharmacists. The patient with pancytopenia and liver injury induced by methimazole gradually recovered with biochemical indices back to normal levels. Conclusion The therapeutic outcome was improved with clinical pharmacist’s knowledge on medication, optimization of therapeutic regime and implement of pharmaceutical care.
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:To evaluate the impact of socioeconomic status，population mobility，prevention and control measures on the early-stage coronavirus disease 2019 (COVID-19) development in major cities of China. : The rate of daily new confirmed COVID-19 cases in the 51 cities with the largest number of cumulative confirmed cases as of February 19，2020 (except those in Hubei province) were collected and analyzed using the time series cluster analysis. It was then assessed according to three aspects，that is, socioeconomic status，population mobility，and control measures for the pandemic. : According to the analysis on the 51 cities，4 development patterns of COVID-19 were obtained，including a high-incidence pattern (in Xinyu)，a late high-incidence pattern (in Ganzi)，a moderate incidence pattern (in Wenzhou and other 12 cities)，and a low and stable incidence pattern (in Hangzhou and other 35 cities). Cities with different types and within the same type both had different scores on the three aspects. : There were relatively large difference on the COVID-19 development among different cities in China，possibly affected by socioeconomic status，population mobility and prevention and control measures that were taken. Therefore，a timely public health emergency response and travel restriction measures inside the city can interfere the development of the pandemic. Population flow from high risk area can largely affect the number of cumulative confirmed cases.
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Humans , COVID-19 , China/epidemiology , Cities , SARS-CoV-2 , Social ClassABSTRACT
This study aimed to quantitatively assess the effectiveness of the Wuhan lockdown measure on controlling the spread of coronavirus diesase 2019 (COVID-19). : Firstly，estimate the daily new infection rate in Wuhan before January 23，2020 when the city went into lockdown by consulting the data of Wuhan population mobility and the number of cases imported from Wuhan in 217 cities of Mainland China. Then estimate what the daily new infection rate would have been in Wuhan from January 24 to January 30th if the lockdown measure had been delayed for 7 days，assuming that the daily new infection in Wuhan after January 23 increased in a high，moderate and low trend respectively (using exponential, linear and logarithm growth models). Based on that，calculate the number of infection cases imported from Wuhan during this period. Finally，predict the possible impact of 7-day delayed lockdown in Wuhan on the epidemic situation in China using the susceptible-exposed-infectious-removed (SEIR) model. : The daily new infection rate in Wuhan was estimated to be 0.021%，0.026%，0.029%，0.033% and 0.070% respectively from January 19 to January 23. And there were at least 20 066 infection cases in Wuhan by January 23，2020. If Wuhan lockdown measure had been delayed for 7 days，the daily new infection rate on January 30 would have been 0.335% in the exponential growth model，0.129% in the linear growth model，and 0.070% in the logarithm growth model. Correspondingly，there would have been 32 075，24 819 and 20 334 infection cases travelling from Wuhan to other areas of Mainland China，and the number of cumulative confirmed cases as of March 19 in Mainland China would have been 3.3-3.9 times of the officially reported number. Conclusions: Timely taking city-level lockdown measure in Wuhan in the early stage of COVID-19 outbreak is essential in containing the spread of the disease in China.
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Humans , COVID-19 , China/epidemiology , Cities , Communicable Disease Control , SARS-CoV-2ABSTRACT
Objective@#To investigate the signal transduction mechanisms of time-dependent effects of 50 Hz 1.8 mT sinusoidal electromagnetic fields(SEMFs)on osteoblastic activity.@*Methods@#Newborn rat calvarial osteoblasts(ROBs)were treated with 50 Hz 1.8mT SEMFs for 30, 60, 90, 120, and 150 min, respectively.Intracellular alkaline phosphatase(ALP)activity was assayed, and protein expression of Runt-related transcription factor 2(Runx2), Smad1/5/8 and mitogen-activated protein kinases(MAPKs)were examined by Western blot.The Dual-Luciferase Reporter Assay System was used to measure the activity of the Wnt pathway.Immunofluorescence staining and laser confocal microscopy were applied to examine the nuclear translocation of Smad1/5/8 and β-catenin.Changes in ALP activity were determined after inhibiting p38 MAPK using a specific inhibitor.@*Results@#ALP activity of ROBs increased after 30, 60, 90, 120 and 150 min of SEMFs treatment, compared with the control group(51.41±5.21, 59.47±4.02, 67.56±4.68, 63.69±3.92, and 58.16±3.61 vs.45.53±3.24), and reached the highest value at 90 min and then started to decline.Protein expression of Runx-2, p-Smad1/5/8, p-p38 and β-catenin increased after SEMFs treatment, and reached the highest value at 90 min and then gradually returned to baseline levels.The values for Wnt pathway activity for the control group and with SEMFs treatment at 30, 60, 90, 120 and 150 min were 0.49±0.06, 0.52±0.09, 0.75±0.05, 0.77±0.42, 0.58±0.08 and 0.42±0.09, respectively.Wnt pathway activity, the nuclear translocation of β-catenin and Smad1/5/8 reached the highest level at 90 min.Values of ALP activity in the control group and the SEMFs group were 44.60±3.84 and 71.54±7.34, respectively, before specifically inhibiting p38 MAPK, and were 52.08±0.83 and 52.15±10.77, respectively, after p38 MAPK inhibition, indicating that ALP activity could not be increased with inhibition.@*Conclusions@#50 Hz 1.8 mT SEMFs increase osteoblastic activity by activating the BMP-2/Smad1/5/8, Wnt/β-catenin and p38 MAPK signal pathways.The optimal duration of treatment is 90 min per day.
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Objective To investigate the signal transduction mechanisms of time-dependent effects of 50 Hz 1.8 mT sinusoidal electromagnetic fields(SEMFs)on osteoblastic activity.Methods Newborn rat calvarial osteoblasts(ROBs) were treated with 50 Hz 1.8mT SEMFs for 30,60,90,120,and 150 min,respectively.Intracellular alkaline phosphatase (ALP) activity was assayed,and protein expression of Runt-related transcription factor 2 (Runx2),Smad1/5/8 and mitogen-activated protein kinases(MAPKs)were examined by Western blot.The Dual-Luciferase Reporter Assay System was used to measure the activity of the Wnt pathway.Immunofluorescence staining and laser confocal microscopy were applied to examine the nuclear translocation of Smad1/5/8 and β-catenin.Changes in ALP activity were determined after inhibiting p38 MAPK using a specific inhibitor.Results ALP activity of ROBs increased after 30,60,90,120 and 150 min of SEMFs treatment,compared with the control group(51.41±5.21,59.47±4.02,67.56[4.68,63.69±3.92,and 58.16±3.61 vs.45.53± 3.24),and reached the highest value at 90 min and then started to decline.Protein expression of Runx-2,p-Smad1/5/8,p-p38 and β-catenin increased after SEMFs treatment,and reached the highest value at 90 min and then gradually returned to baseline levels.The values for Wnt pathway activity for the control group and with SEMFs treatment at 30,60,90,120 and 150 min were 0.49± 0.06,0.52 ± 0.09,0.75±0.05,0.77 ± 0.42,0.58 ± 0.08 and 0.42 ± 0.09,respectively.Wnt pathway activity,the nuclear translocation of β-catenin and Smad1/5/8 reached the highest level at 90 min.Values of ALP activity in the control group and the SEMFs group were 44.60±3.84 and 71.54±7.34,respectively,before specifically inhibiting p38 MAPK,and were 52.08±0.83 and 52.15±10.77,respectively,after p38 MAPK inhibition,indicating that ALP activity could not be increased with inhibition.Conclusions 50 Hz 1.8 mT SEMFs increase osteoblastic activity by activating the BMP-2/Smad1/5/8,Wnt/β-catenin and p38 MAPK signal pathways.The optimal duration of treatment is 90 min per day.
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Objective To study the effects of the compound medicine of icariin and puerarin on peak bone mass in rats during growth period, and to explore its possible mechanism. Methods Forty female Sprague-Dawley rats aged 1 month were randomly divided into normal control group( C), icariin group( I), puerarin group( P), icariin and puerarin compound groupc(I+P), 10 in each group. The body weights were recorded once every two weeks, and the bone mineral density was measured by dual-energy X-ray absorptiometry every month. After the bone mineral density of the whole body was significantly different between the control group and drug groups the animals were sacrificed. The right femur and vertebrae were separated to measure the bone mineral density. The biomechanical properties of the femur and vertebra were detected by AG-IS series desktop electronic universal testing machine. The bone formation index osteocalcin, PINP and bone resorption index were determined by ELISA. Changes in the contents of tartrate-resistant acid phosphatase 5b(TRACP 5b) and CTX-1; and changes in trabecular bone related parameters were recorded after magenta-picric acid staining. Results There was no significant difference in body weight between the two groups (P＞0.05). There was no significant difference in whole body bone density after 1 month of treatment (P＞0.05). After 2 months of treatment, the body bone density of the drug-administered group was higher than that of the control group. Whole body bone density, femur and vertebral bone density, femur maximum load value, maximum vertebrae load value and trabecular bone number and area, serum OC and PINP levels increased, while TRACP 5b and CTX-1 levels decreased(P＜0.01) in drug group. The difference from the control group was statistically significant (P＜0. 05). There were significant differences in biochemical parameters and bone histomorphology between the compound drug group and the two-flavor monomer group ( P＜0. 01). There was no significant difference in bone mineral density and biomechanics, but the average value was higher than that of the monomer group. Conclusion The combination of icariin and puerarin can effectively increase the peak bone mass in rats.
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Objective To evaluate the role of autophagy in Parkin over-expression-induced reduction of cardiac hypertrophy in diabetic rats.Methods Thirty-two healthy SPF male Sprague-Dawley rats,aged 2 months,weighing 200-230 g,were divided into 4 groups (n =8 each) using a random number table method:non-diabetes mellitus (DM) group (group Non-DM),DM group,DM plus AAV9-CMV-Parkin group (group DM+P) and DM puls AAV9-CMV-Parkin puls autophagy inhibitor 3-methyladenine (3-MA) group (group DM+P+MA).DM was induced by intraperitoneal streptozotocin (STZ) 60 mg/kg and confirmed by blood glucose level ＞16.7 mmol/L,and Parkin overexpression was achieved with adeno-associated virus serotype 9 as a vector.AAV9-CMV-Parkin 1 × 1012 mg/kg was injected into the tail vein at 3 weeks after STZ injection in group DM+P.In group DM+P+MA,AAV9-CMV-Parkin 1× 1012 mg/kg was injected into the tail vein at 3 weeks after STZ injection,and 3 weeks later 3-MA 15 mg/kg was injected into the tail vein,once a week for 6 weeks in total.Cardiac diastolic and systolic function was detected using Bmode ultrasonography.Cardiomyocytes were obtained for microscopic examination of the cross-sectional area (with a light microscope) and for determination of the expression of microtubule-associated protein 1 light chain 3,P62 and Parkin.Results Compared with group Non-DM,the cross-sectional area of cardiomyocytes was significantly increased,and the diastolic and systolic function was decreased in DM group (P＜0.05).Compared with group DM,the cross-sectional area of cardiomyocytes was significantly decreased,the diastolic and systolic function was improved,the expression of microtubule-associated protein 1 light chain 3 and Parkin in myocardial tissues was up-regulated,and the expression of P62 was down-regulated in group DM+P (P＜0.05).Compared with group MD+P,the cross-sectional area of cardiomyocytes was significantly increased,the diastolic and systolic function was decreased,the expression of microtubule-associated protein 1 light chain 3 was down-regulated,and the expression of P62 was up-regulated in group DM+P+MA (P＜0.05) Conclusion Autophagy is involved in Parkin over-expression-induced reduction of cardiac hypertrophy in diabetic rats.
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Objective To evaluate the role of tumor necrosis factor α-induced protein 8-like-2 ( TIPE2) in pyroptosis in macrophage of mice using small interfering RNA ( siRNA) technique. Methods J774A. 1 macrophages of mice were divided into 4 groups ( n=6 each) using a random number table method: non-specific siRNA (Scr-siRNA) group (S group), Scr-siRNA plus LPS∕ATP group (S+LPS∕ATP group ) , TIPE2-siRNA group ( T group ) and TIPE2-siRNA plus LPS∕ATP group ( T+LPS∕ATP group) . The corresponding siRNA and Lipofectamine2000 transfection reagents were added to each group, and transfection was performed for 24-48 h, and in addition LPS 1. 0 μg∕ml was then added, cells were incubated for 5 h, then ATP 5. 0 mmol∕L was added, and cells were incubated for 1 h in S+LPS∕ATP and T+LPS∕ATP groups. Cells were collected to detect the expression of TIPE2, NOD-like receptor familypyrin domain containing 3 (NLRP3), caspase-1, apoptosis-associated speck-like protein containing a caspase activation and recruitment domain ( ASC) and Gasdermin D ( GSDMD) ( by Western blot) . The superna-tant was collected for determination of lactic dehydrogenase ( LDH) activity and concentrations of interleu-kin-1beta (IL-1β) and IL-18 (by enzyme-linked immunosorbent assay). Results Compared with group S, the expression of TIPE2 was significantly down-regulated, the expression of NLRP3, caspase-1, ASC and GSDMD was up-regulated, and the LDH activity and concentrations of IL-1βand IL-18 in supernatant were increased in group S+LPS∕ATP ( P<0. 05) . Compared with group T, the expression of TIPE2 was sig-nificantly down-regulated, the expression of NLRP3, caspase-1, ASC and GSDMD was up-regulated, and the LDH activity and concentrations of IL-1βand IL-18 in supernatant were increased in group T+LPS∕ATP (P<0. 05). Compared with group S+LPS∕ATP, the expression of TIPE2 was significantly down-regulated, the expression of NLRP3, caspase-1, ASC and GSDMD was up-regulated, and the LDH activity and con-centrations of IL-1βand IL-18 in supernatant were increased in group T+LPS∕ATP ( P<0. 05) . Conclusion Application of siRNA technique once again confirms that TIPE2 can inhibit pyroptosis in macrophages of mice.
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Objective To evaluate the influence of hematocrit(HCT),vitamin C(Vc)and galactose on three portable blood glucose meters to provide some reference for clinical selection of appropriate blood glucose me-ter.Methods 20 heparin anticoagulant venous blood samples in the clinical laboratory department of Nanfang Hospital were selected for verifying the accuracy of blood glucose meter.2 healthy volunteers were selected for collecting 5 w hole blood samples in interferent test.Referring to the detection results of Roche automatic bio-chemical analyzer,the Nova StatStrip Xpress glucometer,Bayer Contour Plus glucometer and Roche Accu-chek Performa blood glucose meter were performed the accuracy verification.The influence of HCT,Vc and galac-tose on the detection results of above three portable blood glucose meters were evaluated.Results The detec-tion accuracy of Nova StatStrip Xpress and the Roche Accu-Chek glucometers all conformed to the require-ments of ISO15197:2013 standards.The detection accuracy of Bayer Contour Plus glucometer only conformed to the requirements of ISO15197:2003 standards.Under the interference of different levels of HCT,Vc and galactose,the detection results of Nova StatStrip Xpress glucometer conformed to the requirements of ISO15197:2013 standards;w hen detecting low concentration of blood glucose,the Bayer Contour Plus glucom-eter was interfered by 10 mg/dL Vc,and other detection results conformed to the requirements of ISO15197:2003 standards;the anti-interference performance of Roche Accu-chek Performa glucometer conformed to the
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Objective To evaluate the role of tumor necrosis factor alpha-inducible protein 8 like-2 ( TIPE2) in macrophage pyroptosis in mice. Methods Mouse macrophages J774A. 1 were seeded in 6-cm culture dishes (5 ml∕dish) at the density of 2×105 cells∕ml and divided into 4 groups (n=18 each) using a random number table method: blank vector control group ( C group) , blank vector plus lipopolysaccharide ( LPS)∕ATP group ( C+LPS∕ATP group) , TIPE2 overexpression group ( T group) and TIPE2 overexpres-sion plus LPS∕ATP group ( T+LPS∕ATP group) . Cells were infected with lentivirus without TIPE2 in C and C+LPS∕ATP groups. TIPE2 overexpression stable cell line was constructed in T group and T+LPS∕ATP group. LPS 1. 0 μg∕ml was added and cells were incubated for 5 h, and then ATP 5. 0 mmol∕L was added and cells were incubated for 1 h in C+LPS∕ATP group and T+LPS∕ATP group. Cells were collected for de-tection of the expression of TIPE2, NOD-like receptor protein 3 ( NLRP3) , interleukin-1beta ( IL-1β) and interleukin-8 ( IL-18) by Western blot. Flow cytometry was used to detect the pyroptotic cells, and the per-centage of pyroptotic cells was calculated. The concentrations of tumor necrosis factor-alpha ( TNF-α) , IL-6, IL-1β and IL-18 in cell culture media were determined by enzyme-linked immunosorbent assay. Results Compared with group C, the expression of TIPE2 was significantly down-regulated, the expression of NL-RP3, IL-1β and IL-18 was up-regulated, and the percentage of pyroptotic cells and concentrations of TNF-α, IL-6, IL-1β and IL-18 in cell culture media were increased in group C+LPS∕ATP (P<0. 05). Com-pared with group T, the expression of TIPE2 was significantly down-regulated, the expression of NLRP3, IL-1βand IL-18 was up-regulated, and the percentage of pyroptotic cells and concentrations of TNF-α, IL-6, IL-1β and IL-18 in cell culture media were increased in group T+LPS∕ATP ( P<0. 05) . Compared with group C+LPS∕ATP, the expression of TIPE2 was significantly up-regulated, the expression of NLRP3, IL-1β and IL-18 was down-regulated, and the percentage of pyroptotic cells and concentrations of TNF-α, IL-6, IL-1β and IL-18 in cell culture media were decreased in group T+LPS∕ATP ( P<0. 05) . Conclusion TIPE2 can inhibit macrophage pyroptosis, and the mechanism may be related to inhibiting activation of NL-RP3 inflammasome in mice.
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To study the effects of different frequency sinusoidal electromagnetic fields on the bone mineral density and bone histomorphometry of SD young rats, and to screen suitable electromagnetic field frequency. In total 32 female SD rats of 8 weeks old were randomly divided into 4 groups: control group, 15 Hz group, 30 Hz group and 45 Hz group. Except for the control group, rats in experimental groups were treated with corresponding frequency of 1.8 mT sinusoidal electromagnetic field 90 minutes every day. Rats were measured for bone mineral density after 8 weeks by dual energy X-ray absorptiometry. Rats' femur and vertebral bones were measured by analyzing the static and dynamic forms on the right tibia bone for morphometrics. Rat serum was measured to estimate the index of bone formation and bone resorption. Bone mineral density of rats from 15 Hz group and 45 Hz group was higher than that of the control group (P<0.05). Serum osteocalcin level of rats from 15 Hz group and 45 Hz group was higher than that of the control group (P<0.05). Double fluorescence spacing and static parameters of bone tissue in experimental group rat tibia were higher than that of the control group (P<0.05). Our findings imply that 15 Hz and 45 Hz sinusoidal electromagnetic fields can effectively increase bone mineral density in young rats for preventing osteoporosis.
ABSTRACT
<p><b>OBJECTIVE</b>To compare the effects between fast acupuncture and retaining acupuncture for the cervical type of cervical spondylosis.</p><p><b>METHODS</b>Sixty patients were randomized into a fast acupuncture group and a retaining needle group, 30 cases in each one. The acupoints in the two groups were Fengchi (GB 20), Jiaji (EX-B 2, C, C, C) and Jianjing (GB 21), Jianjing 1 (Extra) and Jianjing 2 (Extra). The needles in the fast acupuncture group were out afterarrival, while those in the retaining needle group were retained for 30 min, three times a week, once the other day. One week was seen as a course and the treatment was given for 2 courses. The indices were observed before and after treatment, including Northwick Park neck pain questionnaire (NPQ), short-form McGill pain questionnaire (SF-MPQ) [pain rating index (PRI), visual analogue scale (VAS) and present pain intensity (PPI)]. The effects were compared in the two groups.</p><p><b>RESULTS</b>After treatment, the NPQ score was lower than that before treatment in the two groups (both<0.01), and that in the fast acupuncture group was better (<0.01). All the items of SF-MPQ decreased compared with those before treatment in the two groups (all<0.01), with the better results of PRI sensation score and PRI total score in the fast acupuncture group (both<0.05). The PRI feeling score, VAS score, and PPI score were not significantly different after treatment between the two groups (all>0.05). The total effective rate in the fast acupuncture group was 83.3% (25/30), not significantly different from 76.7% (23/30) in the retaining needle group (>0.05).</p><p><b>CONCLUSION</b>Fast acupuncture and retaining needle are both effective for the cervical type of cervical spondylosis, which can apparently improve the clinical symptoms. Fast acupuncture is superior to retaining acupuncture.</p>
ABSTRACT
Objective: To investigate the effect of resveratrol on peak bone mineral density and bone mass in growing rats. Methods: Thirty-six female healthy Wistar rats were randomly divided into control group, icariin group and resveratrol group with 12 rats in each group. Icariin (25 mg·kg-1·d-1), resveratrol (8.4 mg·kg-1·d-1) or equal volume of distilled water were given by gavage to icariin group, resveratrol group and control group, respectively. The rats were sacrificed after 12 weeks. The organ indexes were calculated and pathology sections were observed; the bone mineral density (BMD), bone biomechanics, serum bone metabolism index, and results of micro-CT scan were analyzed. Results: During the experiment, the body weight of rats showed an increasing trend and there was no significant difference among three groups (P0.05). There were no significant differences in organ index of vital organs and pathological changes among the groups (all P0.05). Compared with the control group, the whole body BMD, and the BMDs of femur and vertebrae in icariin and resveratrol groups were significantly increased after 12 weeks (all PPPPPPPConclusion: Resveratrol can inhibit bone resorption and enhance bone formation, so as to improve the peak bone mass and bone density, enhance bone strength and improve the microstructure of bone tissue in young rats.