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@#Objective To evaluate the diagnostic value of artificial intelligence (AI)-assisted diagnostic system for pulmonary cancer based on CT images. Methods Databases including PubMed, The Cochrane Library, EMbase, CNKI, WanFang Data and Chinese BioMedical Literature Database (CBM) were electronically searched to collect relevant studies on AI-assisted diagnostic system in the diagnosis of pulmonary cancer from 2010 to 2019. The eligible studies were selected according to inclusion and exclusion criteria, and the quality of included studies was assessed and the special information was identified. Then, meta-analysis was performed using RevMan 5.3, Stata 12.0 and SAS 9.4 softwares. The sensitivity, specificity, positive likelihood ratio, negative likelihood ratio and diagnostic odds ratio were pooled and the summary receiver operating characteristic (SROC) curve was drawn. Meta-regression analysis was used to explore the sources of heterogeneity. Results Totally 18 studies were included with 4 771 patients. Random effect model was used for the analysis due to the heterogeneity among studies. The results of meta-analysis showed that the pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, diagnosis odds ratio and area under the SROC curve were 0.87 [95%CI (0.84, 0.90)], 0.89 [95%CI (0.84, 0.92)], 7.70 [95%CI (5.32, 11.15)], 0.14 [95%CI (0.11, 0.19)], 53.54 [95%CI (30.68, 93.42)] and 0.94 [95%CI (0.91, 0.95)], respectively. Conclusion AI-assisted diagnostic system based on CT images has high diagnostic value for pulmonary cancer, and thus it is worthy of clinical application. However, due to the limited quality and quantity of included studies, above results should be validated by more studies.
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Objective@#To evaluate the feasibility, safety, and effectiveness of CT-guided microcoil localization of solitary pulmonary nodules (SPNs) for guiding video-assisted thoracoscopic surgery (VATS). @*Materials and Methods@#Between June 2016 and October 2019, 454 consecutive patients with 501 SPNs who received CTguided microcoil localization before VATS in our institution were enrolled. The diameter of the nodules was 0.93 ± 0.49 cm, and the shortest distance from the nodules to the pleura was 1.41 ± 0.95 cm. The distal end of the microcoil was placed less than 1 cm away from the nodule, and the proximal end was placed outside the visceral pleura. VATS was performed under the guidance of implanted microcoils without the aid of intraoperative fluoroscopy. @*Results@#All 501 nodules were marked with microcoils. The time required for microcoil localization was 12.8 ± 5.2 minutes. Microcoil localization-related complications occurred in 179 cases (39.4%). None of the complications required treatment. A total of 463 nodules were successfully resected under the guidance of implanted microcoils. VATS revealed 38 patients with dislocated microcoils, of which 28 underwent wedge resection (21 cases under the guidance of the bleeding points of pleural puncture, 7 cases through palpation), 5 underwent direct lobectomy, and the remaining 5 underwent a conversion to thoracotomy. In 4 cases, a portion of the microcoil remained in the lung parenchyma. @*Conclusion@#CT-guided microcoil localization of SPNs is safe and reliable. Marking the nodule and pleura simultaneously with microcoils can effectively guide the resection of SPNs using VATS without the aid of intraoperative fluoroscopy.
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For the field detection problems of critical quality attribute(CQA) of moisture content in traditional Chinese medicine(TCM) manufacturing process, big brand TCM Tongren Niuhuang Qingxin Pills were used as the carrier, to establish a moisture content NIR field detection model with or without cellophane in real world production with use of near infrared(NIR) spectroscopy combined with stoichiometry. With the moisture content determined by drying method as reference value, the partial least square method(PLS) was used to analyze the correlation between the spectrum and the moisture reference value. Then the spectral pretreatment methods were screened and optimized to further improve the accuracy and stability of the model. The results showed that the best quantitative model was developed by the spectral data pretreatment of standard normal variate(SNV) with the latent variable factor number of 2 and 7 of Tongren Niuhuang Qingxin Pills with or without cellophane samples. The prediction coefficient of determination(R_(pre)~2) and standard deviation of prediction(RMSEP) of the model with cellophane samples were 0.765 7 and 0.157 2%; R_(pre)~2 and RMSEP of the model without cellophane samples were 0.772 2 and 0.207 8%. The NIR quantitative models of moisture content of Tongren Niuhuang Qingxin Pills with and without cellophane both showed good predictive performance to realize the rapid, accurate and non-destructive quantitative analysis of moisture content in such pills, and provide a method for the field quality control of the critical chemical attributes of moisture in the manufacturing of big brand TCM.
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Medicamentos Herbarios Chinos , Análisis de los Mínimos Cuadrados , Medicina Tradicional China , Espectroscopía Infrarroja CortaRESUMEN
Objective@#To evaluate the feasibility, safety, and effectiveness of CT-guided microcoil localization of solitary pulmonary nodules (SPNs) for guiding video-assisted thoracoscopic surgery (VATS). @*Materials and Methods@#Between June 2016 and October 2019, 454 consecutive patients with 501 SPNs who received CTguided microcoil localization before VATS in our institution were enrolled. The diameter of the nodules was 0.93 ± 0.49 cm, and the shortest distance from the nodules to the pleura was 1.41 ± 0.95 cm. The distal end of the microcoil was placed less than 1 cm away from the nodule, and the proximal end was placed outside the visceral pleura. VATS was performed under the guidance of implanted microcoils without the aid of intraoperative fluoroscopy. @*Results@#All 501 nodules were marked with microcoils. The time required for microcoil localization was 12.8 ± 5.2 minutes. Microcoil localization-related complications occurred in 179 cases (39.4%). None of the complications required treatment. A total of 463 nodules were successfully resected under the guidance of implanted microcoils. VATS revealed 38 patients with dislocated microcoils, of which 28 underwent wedge resection (21 cases under the guidance of the bleeding points of pleural puncture, 7 cases through palpation), 5 underwent direct lobectomy, and the remaining 5 underwent a conversion to thoracotomy. In 4 cases, a portion of the microcoil remained in the lung parenchyma. @*Conclusion@#CT-guided microcoil localization of SPNs is safe and reliable. Marking the nodule and pleura simultaneously with microcoils can effectively guide the resection of SPNs using VATS without the aid of intraoperative fluoroscopy.
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Objective:To detect whether Toll-like receptor 4 ( TLR4) polymorphisms contributed to primary open angle glaucoma (POAG) in a Chinese population. Methods:A Chinese cohort, including 799 unrelated POAG patients and 799 unrelated controls, was enrolled in our case-control association study. The data was collected at Sichuan Provincial People's Hospital from May 2014 to March 2018. TLR4 functional single nucleotide polymorphisms (SNPs), including rs4986790 and rs4986791, were genotyped by SNaPshot method. Genotype and allele frequencies of the two SNPs were evaluated. This study was approved by the Institutional Review Boards of the Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital (No.2016-58), and complied with the guidelines of the Declaration of Helsinki. Written informed consents were obtained from all subjects prior to the study. Results:Allelic association analysis revealed that there were no significant association detected in the allelic distributions between the POAG cases and controls for SNPs rs4986790 ( P=0.317) and rs4986791 ( OR=1.000, 95% CI =0.062 5-16.002 2, P=1.000) in the TLR4 gene. Conditional analysis of the two SNPs did not show any significant difference in genotype and allele frequency between the case and the control groups. No association of the two SNPs with POAG was detected under four different genetic models, including homozygote, heterozygote, dominant and recessive models. Conclusions:Polymorphisms rs4986790 and rs4986791 in the TLR4 gene are not related to POAG in the Chinese cohort.
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BACKGROUND: Proximal femoral nail is the first choice for treating intertrochanteric fractures. The studies concerning proximal femoral nail for senile intertrochanteric fractures mainly focus on proximal femoral nail antirotation/proximal femoral nail antirotation II, Gamma 3 and intertrochanteric antegrade nail. OBJECTIVE: To investigate the clinical efficacy of proximal femoral nail antirotation II versus intertrochanteric antegrade nail in the treatment of intertrochanteric fracture in the elderly. METHODS: Forty-two cases of senile intertrochanteric fractures at Department of Orthopedics, First People’s Hospital of Xuancheng City from January 2016 to December 2018 were included, involving 15 males and 27 females, aged 65-90 years. Among which, 22 patients received internal fixation using proximal femoral nail antirotation II and 20 patients using intertrochanteric antegrade nail. The operation time, intraoperative blood loss, fracture healing time, postoperative complications and the hip function scores at last follow-up were compared. The study was approved by the Ethics Committee of First People’s Hospital of Xuancheng City, approval No. (2015)(17). RESULTS AND CONCLUSION: (1) The operation time in the proximal femoral nail antirotation group was shorter than that in the intertrochanteric antegrade nail group [(69.4±11.5), (90.0±9.7) minutes, P 0.05]. (3) In the proximal femoral nail antirotation group, three cases suffered from pain at the affected limb, and one case of coxa vara deformity. One case in the intertrochanteric antegrade nail group appeared with pain at the affected limb. The postoperative incidence of complications between two groups showed no significant difference (18.2%, 5.0%, P > 0.05). (4) No significant difference was found in the Harris scores at the last follow-up between two groups (90.3±2.8, 91.5±2.4, P > 0.05). (5) There were no fracture adverse reactions related to internal fixation materials in the two groups. (6) In summary, proximal femoral nail antirotation II and intertrochanteric antegrade nail internal fixation are effective methods for intertrochanteric fractures in the elderly. However, proximal femoral nail antirotation II has short operation time and few intraoperative blood losses.
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Objective To select and develop a SNP-STR multiplex amplification system with genetic markers compatible with current STR databases. To understand its genetic polymorphisms in Sichuan Han population and its application value in DNA mixture analysis. Methods Based on the STR genetic markers in commercial kits, SNPs adjacent to these STR markers were selected to be SNP-STR genetic markers. A SNP-STR multiplex amplification system with genetic markers based on allele-specific amplification was constructed using allele-specific amplification primers. The genetic polymorphism of the system in the Sichuan Han population was investigated and the efficiency of systems with different numbers of loci to detect the two individual DNA mixture samples was evaluated. Results An allele-specific multiplex amplification system constituted of 13 SNP-STR genetic markers was selected and constructed. In Sichuan Han population, the heterozygosity of each locus ranged from 0.76 to 0.88, and the combined discrimination power reached 0.999 999 999 999 999 968. In the analysis of the two individual DNA mixture samples： for single-locus amplification, the genotype of the minor components can still be detected when the mixture ratio reaches 1 000∶1; for multiple loci multiplex amplification, the maximum mixture ratio can reach 500∶1. As the number of loci in the system increased, the detection efficiency of the minor components in the DNA mixture decreased. Conclusion SNP-STR genetic markers have a higher polymorphism than STR. The multiplex amplification system made of SNP-STR genetic markers has a better analysis efficiency for mixed samples than traditional STR multiplex amplification system.
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Humanos , China , Dermatoglifia del ADN , Cartilla de ADN , Frecuencia de los Genes , Marcadores Genéticos , Repeticiones de Microsatélite , Reacción en Cadena de la Polimerasa , Polimorfismo de Nucleótido SimpleRESUMEN
OBJECTIVE@#To study the effects of the overexpression of autophagy-related gene 3 (ATG3) on autophagy and salinomycin-induced apoptosis in breast cancer cells and explore the underlying mechanisms.@*METHODS@#We used the lentivirus approach to establish a breast cancer cell line with stable overexpression of ATG3. Western blotting, immunofluorescence staining and transmission electron microscopy were used to analyze the effect of ATG3 overexpression on autophagy in breast cancer MCF-7 cells. Using the AKT/mTOR agonists SC79 and MHY1485, we analyzed the effect of AKT/mTOR signal pathway activation on ATG3 overexpression-induced autophagy. Western blotting and flow cytometry were used to analyze the effect of autophagy on apoptosis of the ATG3-overexpressing cells treated with salinomycin and 3-MA (an autophagy inhibitor).@*RESULTS@#In ATG3-overexpressing MCF-7 cells, ATG3 overexpression obviously promoted autophagy, inhibited the AKT/mTOR signaling pathway, significantly weakened salinomycin-induced apoptosis ( < 0.01), caused significant reduction of the levels of the pro-apoptotic proteins cleaved-caspase 3 ( < 0.01) and Bax ( < 0.05), and enhanced the expression of the anti-apoptotic protein Bcl-2 ( < 0.05). The inhibition of autophagy obviously weakened the inhibitory effect of ATG3 overexpression on salinomycin-induced apoptosis.@*CONCLUSIONS@#ATG3 overexpression promotes autophagy possibly by inhibiting the AKT/mTOR signaling pathway to decrease salinomycin-induced apoptosis in MCF-7 cells, suggesting that autophagy induction might be one of the mechanisms of drug resistance in breast cancer cells.
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Femenino , Humanos , Acetatos , Farmacología , Apoptosis , Genética , Autofagia , Proteínas Relacionadas con la Autofagia , Metabolismo , Benzopiranos , Farmacología , Neoplasias de la Mama , Metabolismo , Patología , Línea Celular Tumoral , Proliferación Celular , Resistencia a Antineoplásicos , Regulación de la Expresión Génica , Células MCF-7 , Morfolinas , Farmacología , Proteínas Proto-Oncogénicas c-akt , Metabolismo , Piranos , Farmacología , Serina-Treonina Quinasas TOR , Metabolismo , Triazinas , Farmacología , Enzimas Ubiquitina-Conjugadoras , MetabolismoRESUMEN
OBJECTIVE@#To evaluate efficacy of radiographic and clinical of Chevron osteotomy versus Scarf osteotomy for hallux valgus at moderate and severe degree.@*METHODS@#Randomized controlled trial (RCT) about Chevron and Scarf osteotomy for hallux valgus, in PubMed, Embase, Cochrane Library, CBM, CNKI, Wanfang Data were searched by computer from establishing database to June 2018. According to inclusion and exclusion criteria, two researchers independently screened the literatures, evaluated risk of bias and extracted related observation index, RevMan 5.3.5 software was used to perform Meta-analysis. Postoperative hallux valgus angle (HVA), intermetatarsal angle (IMA), distal metatarsal articular angle (DMAA), AOFAS score, complications and patients' satisfaction degree between Chevron and Scarf osteotomy.@*RESULTS@#Six RCT literatures were included, involving 507 patients, 92.5% patients were at moderate and severe degree, and 261 patients were performed by Chevron osteotomy and 246 patients were performed by Scarf osteotomy. Meta analysis results showed that Chevron osteotomy was better than Scarf osteotomy in correcting HVA [MD=-1.95, 95%CI(-2.64, -1.27), <0.000 01]. While there were no statistical differences in IMA [MD=-0.42, 95%CI(-1.04, 0.21), =0.19], DMAA[MD=0.78, 95%CI(-0.72, 2.29), =0.31], AOFAS score [MD=2.47, 95%CI(-2.38, 7.33), =0.32], complications [RR=1.09, 95%CI(0.54, 2.20), =0.82], and patients' satisfaction degree [RR=1.00, 95%CI(0.96, 1.05), =0.92].@*CONCLUSIONS@#Chevron osteotomy, which has advantages in simple operation, shorten metatarsal bone, less trauma, was better in correcting HVA of hallux valgus at moderate and severe degree, and had similar effects in IMA, DMAA, AOFAS score, complications and patients' satisfactory degree.
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Humanos , Hallux Valgus , Cirugía General , Huesos Metatarsianos , Articulación Metatarsofalángica , Osteotomía , Resultado del TratamientoRESUMEN
Perilla frutescens,an annual plant in Labiatae family,is grown throughout China and can be used for medicine purposes and as food additives. The present field experiment was carried out to study the effects of different fertilizer treatments on the concentrations and accumulations of antioxidant components,including flavonoids and polyphenols,growth,seed yields and qualities of this plant.The main aim of this study is to provide farmers some advice for improving the yields and qualities of P. frutescens in theory and practice.Five treatments were set up,including a no fertilizer control(CK),chemical fertilizers(CF),organic fertilizers(M),organic fertilizers plus chemical fertilizers at the rates of 1 ∶1 and 1 ∶3 in terms of nitrogen(50 M,25 M). Plant growth parameters were recorded and total flavonoids and polyphenols were determined in three key growth stages of P. frutescens. At the fast growth period,samples of roots,leaves,and stems were collected for determining a total of flavonoids and polyphenols as well as DPPH removal rate of ethanol extracts. Seed yields and qualities were also recorded at harvest. The results showed fertilization enhanced growth and seed yields although no significant difference was observed in growth and seed yields in inorganic-organic fertilizer treatments. The total flavonoids,polyphenols,and DPPH removal rate of ethanol extracts followed the sequence leaves>stems>roots,indicating synthesis of these metabolites in the leaves. DPPH removal rate showed a positive linear correlation with total flavonoid and polyphenol concentrations. In addition,organic-inorganic fertilization significantly increased the numbers of both effective panicles and paniclegrains. Fertilizer treatments had no effect on seed qualities of P. frutescens,while 50 M achieved the highest yield,which increased by 14. 73% compared to CF alone. In general,50 M increased antioxidant components,biomass,and seed yield of P. frutescens,meriting advocate in cultivation.
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China , Fertilizantes , Nitrógeno , Perilla frutescens , Hojas de la Planta , Semillas , SueloRESUMEN
Based on the concept of quality by design( QbD),the design space of Meiyan Shuqi Prescription extraction process was established,and its granules forming process was optimized. The content of total flavonoids was the critical quality attribute( CQA).The amount of water,extraction time and frequency were used as the critical process parameters( CPPs). Box-Behnken experimental design was used to optimize the extraction process. The design space of Meiyan Shuqi Prescription extraction process was established and verified. The results of variance analysis showed that the P value of the quadratic regression model was less than 0. 01,which indicated that the model had a statistical significance,and the relationship between each factor and response value could be functionalized by the established model. Through further optimization of design space,the optimal extraction process of Meiyan Shuqi prescription was13-fold volume of water,extraction for 3 times and each extraction time of 1. 4 hours. Furthermore,the forming process optimized by single factor was as follows: the excipient was dextrin; the ratio of extract powder to excipient was 1 ∶1; the wetting agent was 70% ethanol; and the amount of wetting agent was 0. 3 m L·g-1. The Meiyan Shuqi Prescription extraction process and the forming process based on QbD concept provide reference for the study of other traditional Chinese medicine prescriptions.
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Medicamentos Herbarios Chinos , Etanol , Flavonoides , Medicina Tradicional China , Proyectos de InvestigaciónRESUMEN
As an advanced concept in international pharmaceutical research,quality by design( QbD) can fulfill the strategic requirements of drug quality from testing to design. In this paper,the extraction process of Yanggong Prescription which was the modified Siwu Decoction was optimized based on QbD concept. With the extraction amount of solid matter,the content of ferulic acid and the content of paeoniflorin as critical quality attributes( CQAs),the failure mode and effect analysis( FMEA) was used to screen potential critical process parameters( p CPPs). The mathematical model was established by Box-Behnken experimental design to investigate the interaction between critical process parameters( CPPs) and CQAs. Then the design space for the extraction process of Yanggong Prescription was further established and optimized. Analysis of variance showed that the variance of all models was significant( P<0. 01),and the lack-of-fit value was not significant,indicating that the model was statistically significant. The relationship between various factors and the response values could be functionalized by the established models. Finally,through the optimization of the design space,the optimum extraction process of Yanggong Prescription was obtained as follows: 3 extraction times,122 minutes extraction,and 7 times of water adding. The extraction process of Yanggong Prescription based on the QbD concept was robust and reliable,which would provide guidance for the process development and quality control of its formulations.
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Composición de Medicamentos , Control de Calidad , Proyectos de Investigación , AguaRESUMEN
The quality of compound traditional Chinese medicine is the prerequisite and foundation for its stable efficacy. Based on the quality by design( QbD) concept,the controllable extraction times,extraction time and the ratio of water were the critical process parameters( CPPs) in the Tuomin Dingchuan Prescription extraction process. The CQAs corresponding to CPPs were screened from the four potential critical quality attributes( p CQAs),namely the extraction amount of solid matter,the content of amygdalin,the content of cimicifugoside and the content of 5-O-methylvisammioside by orthogonal experiment. The extraction amount of solid matter and the content of amygdalin were determined as CQAs in the extraction process by the variance analysis of Box-Behnken experimental. The optimal extraction process based on the linear model between CQAs and CPPs of the extraction process was immersion in water for 30 minutes,extraction for three times,extraction for 100 minutes each time and 10 times of water volume. The control space was established for the extraction amount of solid matter and the content of amygdalin,and both of them could be controlled simultaneously to achieve the optimization objective. The molding ratio of Tuomin Dingchuan granules was regarded as CQA in forming process. On the basis of the single factor investigation,the ratio of dry extract powder to excipient and the ratio of ethanol were determined as CPPs. The central composite design( CCD) was used to optimize the forming process of Tuomin Dingchuan granules. The results showed that the dextrin was used as the filler; the ratio of dry paste to dextrin was 1 ∶1; and 0. 3 m L·g-1 of 70% ethanol was added as binder. The soft material and granules conformed to the actual production requirements.
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Puntos de Acupuntura , Medicamentos Herbarios Chinos , Etanol , Medicina Tradicional China , AguaRESUMEN
Objective To observe and study the influence of external drainage of lateral ventricle for contin-uous ventricular infusion and lumbar cistern drainage for the serum and cerebrospinal fluid on inflammatory mediators of patients with intracranial infection ,in order to understand the clinical application value of the treatment methods. Methods From June 2016 to May 2018,56 patients with intracranial infection in the People's Hospital of Lianshui County were selected in the study and randomly divided into two groups according to the random allocation principle , with 28 cases in each group.The control group was treated with repeated lumbar intrathecal drug therapy ,the observa-tion group was treated with external drainage of lateral ventricle for continuous ventricular infusion and lumbar cistern drainage.The serum and cerebrospinal fluid inflammatory mediators of two groups before treatment and at the first and second week after treatment were compared.Results The serum and cerebrospinal fluid inflammatory mediators of the two groups before treatment had no statistically significant differences (all P＞0.05).The serum levels of IL-1β, IL-6 and IL-8 of the observation group at the first and second week after treatment were (2.27 ±0.28) μg／L, (9.25 ±0.89)μg／L,(11.15 ±1.35)μg／L and (1.65 ±0.20)μg／L,(7.04 ±0.81) μg／L,(8.42 ±0.79) μg／L, respectively,which were significantly lower than those of the control group [( 4.63 ±0.38 ) μg／L, ( 11.92 ± 1.35)μg／L,(14.28 ±1.75)μg／L and (3.20 ±0.29) μg／L,(9.41 ±1.02) μg／L,(11.32 ±1.47) μg／L] ( t＝26.456,8.737,7.493,23.282,9.628,9.195,all P＜0.01).Two weeks after treatment ,the levels of IL-1,IL-6 and IL-8 in CSF of the observation group were (1.51 ±0.15) μg／L, ( 5.14 ±0.45 ) μg／L and (5.96 ± 0.59)μg／L,respectively,which were significantly lower than those of the control group (t＝12.876,12.810,14.272, all P＜0.01).The levels of leukotriene B4(LTB4),substance P(SP) and nitric oxide(NO) in serum and cerebrospi-nal fluid of the two groups continued to decrease after treatment for one week and two weeks ,and those in the observa-tion group were lower than the control group ( all P＜0.05).Conclusion External drainage of lateral ventricle for continuous ventricular infusion and lumbar cistern drainage can significantly decrease the serum and cerebrospinal fluid inflammatory mediators of patients with intracranial infection ,so the treatment method has high clinical applica-tion significance.
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Objective@#To observe and study the influence of external drainage of lateral ventricle for continuous ventricular infusion and lumbar cistern drainage for the serum and cerebrospinal fluid on inflammatory mediators of patients with intracranial infection, in order to understand the clinical application value of the treatment methods.@*Methods@#From June 2016 to May 2018, 56 patients with intracranial infection in the People's Hospital of Lianshui County were selected in the study and randomly divided into two groups according to the random allocation principle, with 28 cases in each group.The control group was treated with repeated lumbar intrathecal drug therapy, the observation group was treated with external drainage of lateral ventricle for continuous ventricular infusion and lumbar cistern drainage.The serum and cerebrospinal fluid inflammatory mediators of two groups before treatment and at the first and second week after treatment were compared.@*Results@#The serum and cerebrospinal fluid inflammatory mediators of the two groups before treatment had no statistically significant differences(all P>0.05). The serum levels of IL-1β, IL-6 and IL-8 of the observation group at the first and second week after treatment were (2.27±0.28)μg/L, (9.25±0.89)μg/L, (11.15±1.35)μg/L and (1.65±0.20)μg/L, (7.04±0.81)μg/L, (8.42±0.79)μg/L, respectively, which were significantly lower than those of the control group [(4.63±0.38)μg/L, (11.92±1.35)μg/L, (14.28±1.75)μg/L and (3.20±0.29)μg/L, (9.41±1.02)μg/L, (11.32±1.47)μg/L] (t=26.456, 8.737, 7.493, 23.282, 9.628, 9.195, all P<0.01). Two weeks after treatment, the levels of IL-1, IL-6 and IL-8 in CSF of the observation group were (1.51±0.15)μg/L, (5.14±0.45)μg/L and (5.96±0.59)μg/L, respectively, which were significantly lower than those of the control group(t=12.876, 12.810, 14.272, all P<0.01). The levels of leukotriene B4(LTB4), substance P(SP) and nitric oxide(NO) in serum and cerebrospinal fluid of the two groups continued to decrease after treatment for one week and two weeks, and those in the observation group were lower than the control group(all P<0.05).@*Conclusion@#External drainage of lateral ventricle for continuous ventricular infusion and lumbar cistern drainage can significantly decrease the serum and cerebrospinal fluid inflammatory mediators of patients with intracranial infection, so the treatment method has high clinical application significance.
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Objective: To reveal the mechanism of the effect of arsenic trioxide (ATO) on hepatocellular carcinoma (HCC) cells through metabolomics study. Methods: HCC cell line HepG2 was treated with ATO for 12 h, 24 h and 36 h respectively. The global metabolite profiles were monitored by metabolomics analysis using GC/MS and LC/MS/MS. Results: A total of 307 certified metabolites were detected. Bioinformatics analysis showed that glycosylation and one-carbon metabolism were the main cellular functions that have been affected. Other affected cellular functions/pathways included mitochondrial function fatty acid β-oxidation, TCA cycle, pentose phosphate pathway (PPP) and glutathione metabolism. Conclusion: ATO treatment affects the main metabolomic pathway of HepG2, and inhibits cell growth and migration, then exacerbates oxidative stress to induce cancer cell apoptosis.
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<p><b>OBJECTIVE</b>To study whether hypoalbuminemia after pediatric cardiopulmonary bypass (CPB) for cardiac surgery is a risk factor for postoperative acute kidney injury (AKI).</p><p><b>METHODS</b>A retrospective analysis was performed on the clinical data of 1 110 children who underwent CPB surgery between 2012 and 2016. According to the minimum serum albumin within 48 hours postoperatively, these patients were divided into hypoalbuminemia group (≤35 g/L) and normal albumin group (>35 g/L). The two groups were compared in terms of perioperative data and the incidence of AKI. Furthermore, the incidence of AKI was compared again after propensity score matching for the unbalanced factors during the perioperative period. The perioperative risk factors for postoperative AKI were analyzed by logistic regression.</p><p><b>RESULTS</b>The overall incidence rate of postoperative AKI was 13.78% (153/1 110), and the mortality rate was 2.52% (28/1 110). The mortality rate of children with AKI was 13.1% (20/153). The patients with hypoalbuminemia after surgery (≤35 g/L) accounted for 44.50% (494/1 110). Before and after propensity score matching, the hypoalbuminemia group had a significantly higher incidence of AKI than the normal albumin group (P<0.05). The children with AKI had a significantly lower serum albumin level after surgery than those without AKI (P<0.05). The multivariate logistic regression analysis showed albumin ≤35 g/L was one of the independent risk factors for postoperative AKI.</p><p><b>CONCLUSIONS</b>Albumin ≤35 g/L within 48 hours postoperatively is an independent risk factor for postoperative AKI in children after CPB surgery.</p>
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Adolescente , Niño , Preescolar , Femenino , Humanos , Lactante , Recién Nacido , Masculino , Lesión Renal Aguda , Epidemiología , Puente Cardiopulmonar , China , Epidemiología , Cardiopatías , Cirugía General , Hipoalbuminemia , Epidemiología , Periodo Perioperatorio , Complicaciones Posoperatorias , Epidemiología , Puntaje de Propensión , Estudios RetrospectivosRESUMEN
Genus Lilium plants contain a variety of steroidal saponins, so far at least 82 steroidal saponins have been found in the bulbs of Lilium species, including 13 spirostanol saponins (1-13), 39 isospirostanol saponins (14-52), 7 pseudospirostanol saponins (53-59), and 23 furostanol saponins (60-82). Studies have showed that these steroidal saponins exhibit a wide range of pharmacological activities, including antitumor, antibacterial, antiinflammatory, antioxidant, antidepressant, hepatoprotective, hypoglycemic, sedative-hypnotic effect, and inhibition of cAMP phosphodiesterase and Na⁺-K⁺ ATP, et al. This paper has classified and summarized the 82 steroidal saponins isolated and identified from the bulbs of Lilium species and their correlative biological activities. Also, their structural characteristics and structure-activities relationship have been discussed, which could provide references for further research and application development of Lilium plants.
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<p><b>PURPOSE</b>To investigate the mid-term curative effects of the treatment of Pipkin type IV femoral head fractures using a reconstruction plate and bioabsorbable screws and provide the evidence for clinical practice.</p><p><b>METHODS</b>From February 2010 to September 2014, 21 patients with Pipkin type IV femoral head fractures were treated surgically. There were 13 males and 8 females with an average age of 41.1 years (range, 20-65 years). The causes of the fractures included traffic accidents (13 cases), falls from a height (four cases), heavy lifting injuries (three cases), and sport injury (one case). All patients were followed up with radiography and three-dimensional reconstruction computed tomography and other checks and any complications were actively managed. Closed reduction of fracture-dislocation of the hip was attempted under general anesthesia using the Kocher-Langenbeck approach. Femoral head fractures were treated with internal fixation or excision based on the size of the fracture fragments, whereas acetabular fractures were fixed with a reconstruction plate and screws following anatomic reduction.</p><p><b>RESULTS</b>The incisions healed by primary intention in all patients after surgery, without any infection, deep venous thrombosis, or other complications. All 21 patients were followed up for 36-76 months, with an average follow-up duration of 49 months. Postoperative imaging data showed that all dislocations and fractures were anatomically reduced, and bony union of the fractures was achieved. Heterotopic ossification was found in four patients, post-traumatic osteoarthritis in three, and avascular necrosis of the femoral head in two. At the final follow-up, the assessment of hip joint function according to the Thompson-Epstein scoring scale was excellent in 10 cases, good in six cases, fair in three cases, and poor in two cases. The rate of excellent and good functional outcomes was 76.1%.</p><p><b>CONCLUSION</b>The mid-term curative effects of a reconstruction plate and bioabsorbable screws in the treatment of Pipkin type IV femoral head fractures is significant, and such the treatment can significantly improve the patient's joint function and quality of life.</p>
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Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Acetábulo , Heridas y Lesiones , Placas Óseas , Tornillos Óseos , Cabeza Femoral , Heridas y Lesiones , Estudios de Seguimiento , Fracturas de Cadera , Cirugía General , Procedimientos de Cirugía Plástica , MétodosRESUMEN
<p><b>PURPOSE</b>To investigate the early and mid-term results of open reduction and internal fixation (ORIF) with transarticular external fixation (TEF) but no deltoid ligament repair (DLR) in the treatment of supination-external rotation type IV equivalent (SER IV E) ankle fractures (AO/OTA classification 44-B 3.1) and provide evidence for clinical practice.</p><p><b>METHODS</b>This study cohort consisted of 22 patients with SER IV E ankle fractures that underwent ORIF with TEF but no DLR between December 2011 and December 2014. There were 13 males and 9 females, mean age 38.9 years (range, 17-73 years). Eight cases involved the left side and 14 the right side. The causes of fractures included road traffic accidents (11 cases), falling from height (6 cases) and sports injuries (5 cases). The mean period of hospitalization was 9.8 days (range, 6-14 days). For all the patients, MRI and three-dimensional CT were done before surgery and X-rays done preoperatively and during follow-ups. The external frame was kept for 8-10 weeks. The preoperative American Orthopedic Foot and Ankle Society (AOFAS) ankle-hindfoot score was 56.86 ± 4.400, the Medical Outcomes Short Form 36-item (SF-36) questionnaire score was 57.41 ± 4.102 and the visual analog score (VAS) was 5.50 ± 1.058. Patients' main complaints about inconvenience of daily life were also recorded.</p><p><b>RESULTS</b>All the 22 patients were followed up for 24-63 months (mean, 33.6 months). None of them developed nonunion during the follow-up; pin site infection was observed in one patient and posttraumatic osteoarthritis in another. At the final follow-up, the average AOFAS score, SF-36 score and VAS score were respectively 90.59 ± 5.096, 79.59 ± 5.394 and 1.82 ± 1.181, which were significantly improved compared with the preoperative data (t = 26.221, p < 0.001; t = 11.910, p < 0.001; t = 11.571, p < 0.001). The therapeutic effect was excellent in 13 cases, good in 7 cases and fair in 2 cases, with a good-excellent rate of 90.9%. Patients' main complaints were inconvenience of clothing (17 cases) and extremity cleaning (5 cases).</p><p><b>CONCLUSION</b>In the treatment of SER IV E ankle fractures, ORIF with TEF but no DLR can achieve satisfactory outcome, but long-term effect should be confirmed by large sample randomized controlled trials.</p>