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Objective@#To understand parents attitudes towards adolescent sexual education in Baoshan City of Yunnan Province, and to explore the correlation between attitudes and their proactive behavior in adolescent sexual education, so as to provide reference for improving parents initiative in adolescent sexual health education.@*Methods@#From November to December 2022, a stratified random cluster sampling method was used to select 7 389 parents of students from 35 primary, middle, and high schools in Baoshan City of Yunnan Province for a questionnaire survey on adolescent sexual health education in parents schools. Chi-square tests were conducted to compare the attitudes of parents towards sexual health education among different groups and their proactive behavior in providing sexual health education to their children. A multivariate Logistic regression model was used to analyze the correlation between parents attitudes towards sexual education and proactive sexual health education.@*Results@#Totally 43.17% ( 3 190 ) of parents had a more open attitude towards sex education for their children, with parents of girls, parents of elementary school students, mothers, <30 years old, junior high school education, workers, service personnel, married, harmonious relationships with their children and democratic parents had a higher rate of actively providing sex education for their children ( χ 2=4.65, 401.92, 23.53 , 197.50, 38.18, 13.65, 6.54, 8.07, 32.17, 96.58, P <0.05). Parents with a more conservative attitude towards sex education and parents of boys were negatively correlated with parents actively providing adolescent sexual health education to their children ( OR =0.86, 0.38, P <0.05). Parents who were <30, 30-<40, 40-50 years old, individuals/businesses, married, divorced, had a good and decent relationship with their children were positively correlated with their parents proactive adolescent sexual health education for their children ( OR =1.50, 1.90, 1.37, 1.22, 1.60, 1.32, 1.94, 1.53, P <0.05).@*Conclusion@#A more open attitude towards adolescent sexual health education can serve as a predictive factor for proactive adolescent sexual health education. In order to increase the rate of family sexual health education, it is recommended to enhance parents awareness of their responsibility for their children s sexual health education, promote harmonious parent-child relationships between parents and children, and communicate with their children with an open attitude.
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Objective@#To understand the public health emergency response capacity in primary and secondary schools, and to explore the problems and challenges in the prevention and control of public health emergency in primary and secondary schools for specific strategies.@*Methods@#By using the stratified group sampling method, a questionnaire survey on general situation, knowledge, attitude and training, as well as public health emergencies response capacity among 2 988 teachers or leaders responsible for school emergency response in primary and secondary schools from Beijing, Chongqing and Yunnan.@*Results@#Participants varied on their positions, titles, educational background and knowledge accuracy. Higher knowledge accuracy was associated with higher educational background ( χ 2=50.73-203.36, P < 0.05 ). The implementation of regular public health emergency related programs was poorly conducted in high schools (50.0%). Urban schools (42.0%) had higher proportion of qualified health care professionals than rural schools (18.2%), and private schools (48.5%) was higher than public schools (24.7%). The primary challenges included the shortage of guidance from professionals and the lack of related testing equipment (84.91%, 74.03%).@*Conclusion@#Although the ability of emergency handling of public health emergencies in schools in the three regions is advancing with the times, there are still many deficiencies, some omissions in the mastery of knowledge. It is suggested to inerease pre service and special training of school health work CDC should strengthen technical guidance and work supervision of infectious disease management in schools.
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Transforming growth factor-β(TGF-β), a member of the TGF-β superfamily, plays a role in multiple biological processes, including cell proliferation, differentiation, migration and tissue fibrosis, etc. Normally, TGF-βs widely express in normal tissues and most cell lines, such as macrophages and dendritic cells, But in pathological conditions, Cancer cells and cancer-associated fibroblasts also produce and secrete TGF-β. Scirrhous gastric cancer (SGC) is a special subtype of gastric cancer with rapid development, frequent peritoneal implantation, and accompanied by significant interstitial fibrosis deposition. these biological behavior characteristics all suggest that its occurrence and development are closely related to TGF-β expression, and TGF-β is considered to be associated with poor prognosis of the SGC. The use of antibodies and inhibitors of TGF-β and its signaling pathways can reduce the invasiveness of cancer cells and improve the prognosis of SGC patients. This paper reviews the expression and significance of TGF-β in SGC.
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Ferroptosis is a non-apoptotic regulated cell death caused by iron accumulation and subsequent lipid peroxidation. Currently, the therapeutic role of ferroptosis on cancer is gaining increasing interest. Baicalin an active component in
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Talaromyces marneffei is the only dimorphic species in its genus and causes a fatal systemic mycosis named talaromycosis. Our previous study indicated that knockdown of AcuD gene (encodes isocitrate lyase of glyoxylate bypass) of T. marneffei by RNA interference approach attenuated the virulence of T. marneffei, while the virulence of the AcuD knockout strains was not studied. In this study, T. marneffei-zebrafish infection model was successfully established through hindbrain microinjection with different amounts of T. marneffei yeast cells. After co-incubated at 28°C, the increasing T. marneffei inoculum doses result in greater larval mortality; and hyphae generation might be one virulence factor involved in T. marneffei-zebrafish infection. Moreover, the results demonstrated that the virulence of the ΔAcuD was significantly attenuated in this Zebrafish infection model.
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Gene Knockout Techniques , Hyphae , Isocitrate Lyase , Microinjections , Mortality , Rhombencephalon , RNA Interference , Talaromyces , Virulence , Yeasts , ZebrafishABSTRACT
Objective:To explore the effect of somatosensory interactive games on lower-limb function after stroke. Methods:Randomized controlled trials (RCT) about the effectiveness of somatosensory interactive games on lower-limb function after stroke were retrieved from domestic and foreign databases, from inception to September, 2018. After literature quality evaluation, a meta-analysis was performed using RevMan5.3. Results:A total of 414 patients were included in eleven articles. Compared with routine rehabilitation measures, somatosensory interactive games improved Berg Balance Scale scores (WMD = 1.75, 95%CI 0.95~2.54, P < 0.001), increased stride frequency (SMD = 1.21, 95%CI 0.03~2.38, P = 0.04), decreased the time of Timed Up and Go Test (WMD = -4.21, 95%CI -7.36~-0.89, P = 0.01), and improved the motor function of lower limbs (SMD = 0.66, 95%CI 0.15~1.17, P = 0.01), but worked less in pace (SMD = 0.05, 95%CI -0.98~1.09, P = 0.92) and 10-metre Maximum Walking Speed (WMD = 3.54, 95%CI -1.12~8.20, P = 0.14). Conclusion:Compared with the routine rehabilitation, somatosensory interactive games can improve balance, walking and motor function. However, it is needed to further research on the pace and speed.
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Cytochrome P450(CYP450),one of the most important enzymes in the human body,medi?ates the activation and toxicity of indirect poisons as well as indirect carcinogens. CYP450 is a super?family mainly composed of CYP1A, CYP1B, CYP2A, CYP2B, CYP2C, CYP2E, CYP2W, CYP3A and their activities are widely modulated by epigenetic manners, such as DNA methylation, histone modifi?cation and microRNA interference.Indirect carcinogens including benzo(a)pyrene,2,3,7,8-tetrachlorod?ibenzo-p-dioxin,diethylstilbestrol,aflatoxin B1 and cyclophosphamide,can change epigenetic modifica?tions, such as specific changes in DNA methylation, histone acetylation, methylation or ubiquitination, and up-or down-regulation of microRNA expression,which affect the function of the major subtypes of CYP450 and their role in indirect carcinogen activation.
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Objective To investigate the characteristics of hyaluronic acid-uricase multivesicular liposomes (UHMVLs) in vitro and the pharmacodynamics of UHMVLs in rats. Methods UHMVLs was prepared by multiple emulsion method. The entrapment efficiency and physicochemical properties were detected. Twelve healthy male SD rats were enrolled in this study. The rat model of hyperuricemia was established with hypoxanthine and oteracil potassium, while the normal rats (n=3) were set as controls. Intravenous UHMVLs, uricase (UC) and nothing were given to the rats of UHMVLs group (n=3), UC group (n=3) and hyperuricemia model group (n=3), respectively; the levels of serum uric acid (UA) were detected in rats of the 4 groups. Results The average entrapment efficiency of UHMVLs was (62.48±3.87)%. The optimum temperatures of UHMVLs and UC were 40°, while the optimum pH values of UHMVLs and free UC were 8.0 and 8.5, respectively. The activity of UC in UHMVLs was significantly higher than that in free UC at the same temperature (20-70°) and pH value (6.5-9.5) (P<0.05). UHMVLs was more effective than free UC in decreasing serum UA in rats with hyperuricemia at all time points (P<0.05), except for 1 h, 36 h and 48 h. Conclusion Under the same condition, UHMVLs can improve not only the activity, but also the stability of UC. UHMVLs is more effective in decreasing serum uric acid in rats compared with free UC, which may pave a way for clinical application of UC.
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Objective To achieve detailed genomic characterization and investigate the antibiotic-resistant mechanisms of plasmid pA1137 carrying the aminoglycoside resistance gene aacC2.Methods Antibiotic-resistant genes were deter-mined by PCR.Conjugation experiments were performed to verify the transferability of plasmid pA 1137.The minimum in-hibitory concentration(MIC)values of bacterial strains were tested with microdilution method.The genetic background, mobile elements and antibiotic resistance mechanisms of pA 1137 were determined using a whole genome sequencing meth-od.Results Both carbapenem-resistant gene blaIMP-8and aminoglycoside-resistant genes aacC2 and aacA4 were carried by A1137 isolated from Enterobacter cloacae(ECL).aacC2 was located in plasmid pA1137 while the other two resistant genes were observed in chromosomes.Plasmid pA1137 was an IncFⅡplasmid,whose total length was 68.97 kb,and GenBank accession number was MF190369.Plasmid pA1137 contained multiple replicons and intact conjugative transfer regions,so it could be transferred into ECL through conjugation experiments and confer corresponding antibiotic resistance to the transconjugant A1137-EC600.Conclusion IncFⅡ plasmid pA1137 has a single accessory region, the first reported Tn5403-based aacC2-tmrB-related region,which can cause stable inheritance and mediate the resistance to aminoglycoside antibiotics in ECL A1137.
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Objective To evaluate the safety of Parecoxib Sodium for Injection.Methods Systemic active anaphylaxis test:Guinea pigs were injected respectively with Parecoxib Sodium for Injection (test sample,20 mg/mL),primary control,sodium chloride injection or human serum albumin,once every other day,continuously for three times.After 14 and 21 d from the end time of sensitization,to stimulation and to observe whether allergic reactions occurred within 30 mins.Passive cutaneous anaphylaxis test:Guinea pigs were received 0.1 mL antiserum injection for inducing passive sensitization,after 24 h of that we stimulated the guinea pigs,and the guinea pigs were sacrificed after 30 mins to examine the diameter of blue spots.Blood vessel irritation test:After continuous ear Ⅳ test sample for 5 d,HE staining was performed at the end of the administration and recovery period,and the stimulation of the blood vessel at the site of injection was observed.Hemolysis or agglutination of Parecoxib Sodium for Injection was examined by in vitro methods.Results Under the dosage of 20 mg/mL,guinea pigs showed no systemic allergy and passive skin allergy,and no hemolysis,agglutination,and irritation of vascular was observed.Conclusion Under the present experimental conditions,20 mg/mL Parecoxib Sodium for Injection shows no obvious allergic reactions,irritation and hemolysis,is safe.
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Objective To investigate the role of Wnt/β-catenin signaling pathway in the process of adipose-derived stem cells (ADSCs)differentiating into neurons.Methods The third generation of ADSCs were divided into three groups.Neural induction medium was used in induction group and DDK-1 was added into neural induction medium in inhibition group.Normal culture medium was used in control group.Ten days after culture,Real-time PCR and Western blot were used to detect the expressions of NSE,β-catenin and GSK-3βin each group.Results The expressions of NSE and β-catenin were high but the expression of GSK-3 was low in induction group.The expression ofβ-catenin was lower but GSK-3 was higher in inhibition group;the expression of NSE was much lower than that in induction group,but higher than control group.Conclusion The differentiation of ADSCs into neurons is related to activation of Wnt signaling pathway,but Wnt signal pathway is not the only pathway to regulate ADSCs differentiation which may be controlled by different signaling pathways.
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Objective To evaluate the safety of Parecoxib Sodium for Injection.Methods Systemic active anaphylaxis test:Guinea pigs were injected respectively with Parecoxib Sodium for Injection (test sample,20 mg/mL),primary control,sodium chloride injection or human serum albumin,once every other day,continuously for three times.After 14 and 21 d from the end time of sensitization,to stimulation and to observe whether allergic reactions occurred within 30 mins.Passive cutaneous anaphylaxis test:Guinea pigs were received 0.1 mL antiserum injection for inducing passive sensitization,after 24 h of that we stimulated the guinea pigs,and the guinea pigs were sacrificed after 30 mins to examine the diameter of blue spots.Blood vessel irritation test:After continuous ear Ⅳ test sample for 5 d,HE staining was performed at the end of the administration and recovery period,and the stimulation of the blood vessel at the site of injection was observed.Hemolysis or agglutination of Parecoxib Sodium for Injection was examined by in vitro methods.Results Under the dosage of 20 mg/mL,guinea pigs showed no systemic allergy and passive skin allergy,and no hemolysis,agglutination,and irritation of vascular was observed.Conclusion Under the present experimental conditions,20 mg/mL Parecoxib Sodium for Injection shows no obvious allergic reactions,irritation and hemolysis,is safe.
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Objective To investigate influence of combined use of allopurinol and warfarin on the INR of chronic permanent atrial fibrillation hyperuricemia patients. Methods 80 cases of patients with chronic atrial fibrillation complicated with hyperuricemia, in Sanmen County People's Hospital from February 2016 to February 2017 were randomly divided into the control group (n=40) and the observation group (n=40), the control group was given warfarin plus low purine diet treatment, the observation group was given additional Allopurinol treatment. Changes of INR were compared. Results There was no statistical significance in INR level before treatment between the two groups of patients with permanent atrial fibrillation complicated with chronic hyperuricemia. The INR level of the control group was not changed after treatment, the observation group increased significantly after treatment, and there was statistical significance between the two groups (P<0.05). There were no bleeding events in the control group, there were 6 cases of the observation group with minor bleeding and subcutaneous ecchymosis, including 2 cases with fecal occult blood, 1 cases with hematuria, nasal hemorrhage . The change of liver and kidney function was not obvious. Conclusion In application of allopurinol treatment plus warfarin for patients with chronic persistent atrial fibrillation and hyperuricemia patients, , INR need to be regularly monitored, in order to provide reference for Warfarin dosage adjustment, and ensure clinical safety.
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Objective To investigate the role of Wnt/β-catenin signaling pathway in the process of adipose-derived stem cells (ADSCs)differentiating into neurons.Methods The third generation of ADSCs were divided into three groups.Neural induction medium was used in induction group and DDK-1 was added into neural induction medium in inhibition group.Normal culture medium was used in control group.Ten days after culture,Real-time PCR and Western blot were used to detect the expressions of NSE,β-catenin and GSK-3βin each group.Results The expressions of NSE and β-catenin were high but the expression of GSK-3 was low in induction group.The expression ofβ-catenin was lower but GSK-3 was higher in inhibition group;the expression of NSE was much lower than that in induction group,but higher than control group.Conclusion The differentiation of ADSCs into neurons is related to activation of Wnt signaling pathway,but Wnt signal pathway is not the only pathway to regulate ADSCs differentiation which may be controlled by different signaling pathways.
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Objective To investigate influence of combined use of allopurinol and warfarin on the INR of chronic permanent atrial fibrillation hyperuricemia patients. Methods 80 cases of patients with chronic atrial fibrillation complicated with hyperuricemia, in Sanmen County People's Hospital from February 2016 to February 2017 were randomly divided into the control group (n=40) and the observation group (n=40), the control group was given warfarin plus low purine diet treatment, the observation group was given additional Allopurinol treatment. Changes of INR were compared. Results There was no statistical significance in INR level before treatment between the two groups of patients with permanent atrial fibrillation complicated with chronic hyperuricemia. The INR level of the control group was not changed after treatment, the observation group increased significantly after treatment, and there was statistical significance between the two groups (P<0.05). There were no bleeding events in the control group, there were 6 cases of the observation group with minor bleeding and subcutaneous ecchymosis, including 2 cases with fecal occult blood, 1 cases with hematuria, nasal hemorrhage . The change of liver and kidney function was not obvious. Conclusion In application of allopurinol treatment plus warfarin for patients with chronic persistent atrial fibrillation and hyperuricemia patients, , INR need to be regularly monitored, in order to provide reference for Warfarin dosage adjustment, and ensure clinical safety.
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Objective To characterize the whole-sequence of plasmid pB557-NDM isolate from Enterbacter cloacae and elaborate its antibiotic-resistant mechanisms .Methods Antibiotic resistance genes were determined by PCR , followed by amplicon sequencing .The activity of class A/B/D carbapenemases was determined by modified Carba NP test .Conjugation experiments were performed to verify the transferability of plasmid pB 557-NDM.The minimum inhibitory concentration (MIC) values of bacterial strains were tested using VITEK 2.The genetic structure, mobile elements and antibiotic-resistant mechanisms of transferable plasmid pB 557-NDM were determined by a whole genome sequencing method .Results The modified CarbaNP test showed that B557 and B557-EC600 had class B carbapenemase activity , and that the blaNDM was carried by plasmid pB557-NDM.This plasmid could be transferred into E.coli through conjugation experiments and therefore could confer corresponding antibiotic resistances to the transconjugant B 557-EC600.Plasmid pB557-NDM was an IncA/C2 plasmid, whose total length was 141.65 kb, and the GenBank accession number was KX786648.It had two inserted regions.One was the blaCMY-6 region where the blaCMY gene was carried by a transposition unit IS Ecp1-blaCMY , the other was the blaNDM-1 region which consisted of a ΔTn1696-In46-rmtC-ISKpn14-ΔTn125 complex structure.Conclusion The production of plasmid pB557-NDM in strain B557 contributes most to its high resistance to many antibiotics .The blaNDM-1 gene is carried in a trancated transposition ΔTn125.
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Objective To characterize the resistance mechanisms of a clinical Shigella sonnei strain harboring blaCTX-M-55 .Methods A double-disk synergy test was conducted to detect ESBL.Antibiotic resistance genes were determined by PCR followed by amplicon sequencing.Conjugation experiments were performed to verify the transferability of the plasmids carrying ESBL genes.The minimum inhibitory concentration values were tested using VITEK 2.The transposition unit was confirmed by DNA sequencer,and the transcriptional start site was identified using primer extension assay.Results Strain #1083 produced CTX-M-55,which was encoded by plasmid p1083-CTXM that could be transferred into E.coli through conjugation experiments to confer corresponding antibiotic resistance to the transconjugant #1083-EC600.The transposition unit mediating the transfer of blaCTX-M-55 was ISEcp1-blaCTX-M-55 -Δorf477.ISEcp1 offered strong promoter regions for the resistance genes,facilitating their expressions.Besides,the expressions were constant,not induced by antibiotics.Conclusion BlaCTX-M-55 on plasmids is the major resistance genes for strain #1083.Their expressions and spread are mediated by the insertion sequence ISEcp1.
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<p><b>OBJECTIVE</b>To compare the pharmacokinetic parameters of evodiamine hydroxypropyl-β-cyclodextrin inclusion complex and free evodiamine suspension in rats, and investigate the pharmacokinetic characteristics of evodiamine inclusion complex.</p><p><b>METHODS</b>Both water solubility and cumulative release percentage of EHD were tested with evodiamine as the control. Blood samples were collected from the venous plexus of SD rats after intravenous administration with evodiamine inclusion complex and free evodiamine at 100 mg/kg (equivalent evodiamine dose). Plasma concentrations of evodiamine were determined by high-performance liquid chromatography (HPLC), and the pharmacokinetic parameters were calculated using DAS 2.1.1.</p><p><b>RESULTS</b>The evodiamine inclusion complex showed a better water solubility (18.46±0.36 µg/mL) and a higher cumulative release percentage [(76.8±4.9)%] than free evodiamine. The pharmacokinetic parameters of evodiamine inclusion complex and free evodiamine in rats were as follows: Cmax, 252.5±12.43 vs 161.3±3.45 µg/L; T(max), 4.00±0 vs 4.07±0 h; MRT(0-∞), 8.46±0.91 vs 4.43±0.74 h; AUC(0-t), 2266.40±28.64 vs 911.92±8.53 µg·L(-1)·h(-1); AUC(0-∞), 2359.76±31.58 vs 919.16±9.73 µg·L(-1)·h(-1). The relative bioavailability of evodiamine inclusion complex was 256.73%.</p><p><b>CONCLUSION</b>Compared with free evodiamine, evodiamine inclusion complex has a higher bioavailability.</p>
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Animals , Rats , 2-Hydroxypropyl-beta-cyclodextrin , Biological Availability , Chromatography, High Pressure Liquid , Quinazolines , Blood , Pharmacokinetics , Rats, Sprague-Dawley , Solubility , beta-Cyclodextrins , PharmacokineticsABSTRACT
<p><b>OBJECTIVE</b>To establish a method for gene complementation in Vibrio parahaemolyticus using the plasmid pBAD33.</p><p><b>METHODS</b>The entire coding region of opaR or aphA was amplified by PCR and cloned into pBAD33. The recombinant plasmid was transformed into δopaR and δaphA (the opaR or aphA null mutant strain, respectively) separately to construct the complemented mutant strain C-δaphA and C-δopaR, respectively. RT-PCR was used to verify the transcription of opaR and aphA in the corresponding complemented mutant strains. Primer extension experiments were performed to determine the relative mRNA levels of mfpA (a gene previously characterized to be negatively regulated by AphA and positively by OpaR) in the wild-type strain, δopaR, δaphA, C-δaphA, and C-δopaR.</p><p><b>RESULTS</b>opaR and aphA were transcribed in the corresponding complemented mutant strains, and their mRNA levels were comparable to those detected in the wild-type strains.</p><p><b>CONCLUSION</b>A method has been established for gene complementation in Vibrio parahaemolyticus using the plasmid pBAD33.</p>