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Objective To observe the effect of coronary reperfusion therapy on the differential ex-pression of plasma exosomal miRNAs in patients with acute myocardial infarction(AMI).Meth-ods Three elderly male AMI patients undergoing coronary reperfusion therapy in our hospital from October to November 2022 were recruited in this study.The venous blood samples were col-lected at admission and 2 and 24 h after recanalization.MiRNA-sequencing was used to screen the differentially expressed miRNAs which were commonly expressed in the plasma exosomes of the 3 patients.Bioinformatics analysis was performed on the target genes,and then the differentially expressed miR-499a-5p was verified by qPCR.Results Compared with the plasma exosomal miRNAs at admission,there were 418 up-regulated and 406 down-regulated miRNAs at 2 h after operation,and 320 up-regulated and 225 down-regulated miRNAs at 24 h after operation(P＜0.05);Compared with the miRNAs at 2 h after operation,there were 344 up-regulated and 350 down-regulated ones at 24 h after operation(P＜0.05).Kyoto Encyclopedia of Genes and Ge-nomes enrichment analysis showed that the differentially expressed miRNAs were enriched in phosphatidylinositol-3-kinase-protein kinase B,hypoxia-inducible factor 1,and vascular smooth muscle contraction pathways.Gene Ontology analysis indicated that the molecular functions of dif-ferentially expressed miRNA target genes were mainly enriched in protein binding and DNA bind-ing;cellular components were mainly enriched in cell membrane and cytoplasm;and biological processes were mainly enriched in signaling and transcription of DNA templates.The miR-499a-5p level was significantly lower at 2 h postoperatively than at admission[(0.577±0.020)vs(1.000± 0.023),P＜0.05],and at 24 h postoperatively than at 2 h postoperatively[(0.068±0.006)vs(0.577±0.020),P＜0.05].Conclusion Plasma exosomal miRNAs can be used as a biomarker for early diagnosis of elderly AMI patients and for predicting the efficacy of reperfusion therapy.
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The chemical compositions of Rodgersia aesculifolia were isolated and purified using a combination of silica gel, reverse phase silica gel, Sephadex LH-20 column chromatography, and semi-preparative HPLC. The structures were determined according to the physicochemical properties and spectroscopic data. The MTT method and the ABTS kit were used to measure the cytotoxicity and antioxidant capacity of all isolates, respectively. Thirty-four compounds were isolated from R. aesculifolia and elucidated as stigmastane-6β-methoxy-3β,5α-diol(1), stigmastane-3β,5α,6β triol(2), β-sitosterol(3), β-daucosterol(4), stigmast-4-en-3-one(5), bergenin(6), 11-β-D-glucopyranosyl-bergenin(7), 11-O-galloybergenin(8), 1,4,6-tri-O-galloyl-β-D-glucose(9), gallic acid(10), 3,4-dihydroxybenzoic acid methyl ester(11), ethyl gallate(12), ethyl 3,4-dihydroxybenzoate(13), caffeic acid ethyl ester(14), p-hydroxybenzeneacetic acid(15), 4-hydroxybenzoic acid(16), 2,3-dihydroxy-1-(4-hydroxy-3-methoxyphenyl)-propan-1-one(17), 3,7-dimethyl-2-octene-1,7-diol(18), crocusatin-B(19), neroplomacrol(20), geniposide(21), 3-hydroxyurs-12-en-27-oic acid(22), 3β-trans-p-coumaroyloxy-olean-12-en-27-oic acid(23), aceriphyllic acid G(24), isolariciresinol(25), trans-rodgersinine B(26), cis-rodgersinine A(27), neo-olivil(28),(7S,8R)-dihydro-3'-hydroxy-8-hydroxy-methyl-7-(4-hydroxy-3-methoxy phenyl)-1'-benzofuranpropanol(29), 5,3',4'-trihydroxy-7-methoxyflavanone(30), quercetin 3-rutinoside(31), catechin-[8,7-e]-4β-(3,4-dihydroxy-phenyl)-dihydro-2(3H)-pyranone(32), ethyl α-L-arabino-furanoside(33), and l-linoleoylglycerol(34). One new compound was discovered(compound 1), 25 compounds were first isolated from R. aesculifolia, and 22 compounds were first isolated from the Rodgersia plant. The results indicated that compounds 22-24 possessed cytotoxicity for HepG2, MCF-7, HCT-116, BGC-823, and RAFLS cell lines(IC_(50) ranged from 5.89 μmol·L~(-1) to 20.5 μmol·L~(-1)). Compounds 8-14 and 30-32 showed good antioxidant capacity, and compound 9 showed the strongest antioxidant activity with IC_(50) of(2.00±0.12) μmol·L~(-1).
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Antioxidants/analysis , Silica Gel/analysis , Plant Roots/chemistryABSTRACT
Objective: To investigate the clinicopathological features, diagnosis and differential diagnosis of pediatric myofibroma/myofibromatosis of the soft tissue and bone. Methods: All cases of pediatric myofibroma/myofibromatosis of the soft tissue and bone diagnosed between January 2011 and December 2018 were retrieved from the surgical pathology records in the Department of Pathology, Beijing Jishuitan Hospital, Beijing, China. Clinical and radiological data were collected. H&E and immunohistochemistry were used to examine histological and immunophenotypic features and to make the diagnosis and differential diagnosis. The relevant literature was also reviewed. Results: Twenty-eight cases of pediatric myofibroma/myofibromatosis of the soft tissue and bone were respectively collected. The patients' ages ranged from 2 months to 14 years, with a mean age of 7 years. There were 7 females and 21 males. There were 12 cases located in soft tissue, including the finger (n=9), upper arm (n=1) and foot (n=2). There were 14 cases located in the bone of limb, including the femur (n=8), tibia (n=4), clavicle (n=2), fibula (n=2) and radius (n=1). There were 2 cases of myofibromatosis involving multiple bones. Radiology showed lytic lesions in the bone. The proliferation of spindle-shaped myofibroblasts arranged in fascicles with indistinct eosinophilic cytoplasm and bland nuclei, with no pleomorphism and cytological atypia. The characteristic histologic structure was the biphasic nodular growth pattern with cellular and paucicellular regions. The tumors might arrange in a hemangiopericytoma-like pattern. The stroma varied between dense fibrosis and myxoid changes. The reactive new bone formation and inflammatory cell infiltration also existed. Immunohistochemical study showed that the SMA was positive. The surgical resections were performed. One of the patients had tumor recurrence as a result of 11-month follow-up. Conclusions: The pediatric myofibroma/myofibromatosis of the soft tissue and bone is a very rare benign tumor and has a good prognosis. It has a characteristic morphology and its differential diagnosis from other spindle cell tumors could be made with the immunohistochemical analysis.
Subject(s)
Child , Female , Humans , Infant , Male , Child, Preschool , Adolescent , Bone and Bones/pathology , Diagnosis, Differential , Leiomyoma , Myofibroma/diagnosis , Myofibromatosis/diagnosisABSTRACT
Objective:To compare the clinical effects between proximal humerus internal locking system (PHILOS) inverted and a posterior single plate in the anterior percutaneous minimally invasive internal fixation for distal humeral shaft fractures.Methods:A retrospective study was conducted to analyze the data of 65 patients with distal humeral shaft fracture who had been treated from January 2018 to May 2021 at Department of Orthopaedics, The Second Hospital of Fuzhou. The patients were assigned into 2 groups according to different treatment methods. In the observation group of 30 cases subjected to anterior percutaneous minimally invasive internal fixation with PHILOS inverted: 20 males and 10 females with an age of (41.5±11.6) years; type A in 5 cases, type B in 14 cases, and type C in 11 cases by AO fracture classification. In the control group of 35 cases subjected to anterior percutaneous minimally invasive internal fixation with a posterior single plate: 23 males and 12 females with an age of (39.9±11.2) years; type A in 7 cases, type B in 17 cases, and type C in 11 cases by AO fracture classification. The preoperative general data, operation time, intraoperative blood loss, total incision length, fracture healing time, and shoulder and elbow VAS scores, Constant-Murley shoulder function score, Mayo elbow performance score (MEPS), and complications at the last follow-up were recorded and compared between the 2 groups.Results:There was no significant difference in the preoperative general data between the 2 groups, showing comparability ( P>0.05). There were no significant differences either in operation time, fracture healing time, or shoulder or elbow VAS pain score, Constant-Murley shoulder function score, or MEPS at the last follow-up between the 2 groups ( P>0.05). The intraoperative blood loss was (59.7±26.6) mL in the observation group and (165.7±86.4) mL in the control group, and the total incision length was (10.7±2.1) cm in the observation group and (18.6±2.7) cm in the control group, showing statistically significant differences between the 2 groups ( P<0.01). There was no injury to the radial nerve or musculocutaneous nerves, incision infection or fracture nonunion in the observation group. There were 4 cases of iatrogenic radial nerve injury, 2 cases of incision infection and 1 case of fracture nonunion in the control group, yielding a complication rate of 20.0% (7/35). The difference in the incidence of complications was significant between the 2 groups ( P<0.01). Conclusion:In the treatment of distal humeral shaft fracture with anterior percutaneous minimally invasive internal fixation, PHILOS inverted has advantages of less soft tissue damage, less intraoperative bleeding, and a lower risk of iatrogenic radial nerve injury than the posterior single plate.
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Aim To investigate the effects of daidzeinDD on the proliferation and apoptosis of non-small cell lung cancer cells,with a focus on the possible role of the p53 signaling pathway in this regard. Methods CCK-8 method and flow cytometry were used to detect the effects of soy isoflavone crude extract and DD on the viability and apoptosis of HELF and H1299 cells. Gene microarray was used to detect the changes in gene expression after treatment of H1299 cells with DD. GSEA and differential analysis were used to screen the major pathways and key genes. RT-qPCR and Western blot were performed to verify the differences in mRNA and protein expression of key genesp53 and CASP9 in the major pathways. After p53 inhibitor Pifithrin-α inhibited the expression of p53,the effect of DD on p53 mRNA and protein expression levels was examined,and the proliferative effect on H1299 cells was observed. Results Soy isoflavone crude extract and DD promoted proliferation and inhibited apoptosis of normal lung cells and inhibited proliferation and promoted apoptosis of lung cancer cells. p53 signaling pathway was significantly enriched in the DD-treated groupNES=1.78,P=0.000,and the expressions of p53 and CASP9 genes were found to be significantly up-regulated in the treated group. Compared with the control group,mRNA expression of CASP9 and p53 significantly increased in both HELF and H1299 cells treated with DDP<0.05,and p53 protein expression also increased in HELF cellsP<0.05. After inhibition of p53 expression,DD significantly increased the mRNA expression of p53 in H1299 and HELF cellsP<0.05 and also markedly increased the expression of p53 protein in H1299 cellsP<0.05,and it was observed that DD inhibited the proliferation of lung cancer cells. Conclusions DD inhibits the proliferation and promotes the apoptosis of lung cancer H1299 cells,and the mechanism mainly involves the p53 signaling pathway.
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Objective:To investigate the reliability and repeatability of 3 classification systems for coronal fractures of distal humerus.Methods:Included were the imaging data (X-ray and CT scan) of the 64 patients with distal humeral coronal fracture who had been admitted to the outpatient and emergency departments of Beijing Jishuitan Hospital from January, 2015 to December, 2021. Four orthopedic surgeons (1 chief surgeon, 1 associate chief surgeon, 1 attending surgeon, and 1 resident surgeon) served as observers who classified the fractures by their imaging data respectively according to the Bryan-Morrey, Ring and Dubberley classifications. Four weeks later when the imaging data of 64 patients were renumbered, the 4 orthopedic surgeons performed the same classifications again. Inter-observer and intra-observer Kappa values were calculated for the 3 classifications. Landis and Koch Kappa's Benchmark Scale was used to interpret the results.Results:Interobserver confidence: The average agreement of the Bryan-Morrey classification was 75.0%, and its Kappa value was 0.546, indicating moderate agreement. The average consistency of Ring classification was 74.7%, and its Kappa value was 0.702, indicating high consistency. The average consistency of Dubberley classification was 84.1%, and its Kappa value was 0.785, indicating high consistency. Intra-observer repeatability: The average consistency of Bryan-Morrey classification was 89.9% and its Kappa value was 0.824 for the same observer. The average consistency of Ring classification was 91.0%, and its Kappa value was 0.884. The average consistency of Dubberley classification was 91.8%, and its Kappa value was 0.888.Conclusions:The 3 classification systems for distal humeral coronal fractures all demonstrate high reproducibility. As the Dubberley classification system is relatively more reliable, it has a certain guiding value for the treatment of coronal fractures of the distal humerus. However, in clinical practice, an optimal surgical strategy should take into account various factors that may affect fracture typing.
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Objective To investigate the prevalence and risk factors of depression among middle school students in Tianjin , and to provide the evidence for making targeted prevention of depression. Methods In September 2019 and September 2020, the stratified cluster sampling method was used to select 32 380 middle school students in Tianjin for face-to-face questionnaire survey, which included the basic information , depressive symptoms , health status , life and behavior habits , injuries , and Internet addiction in the previous week. The χ2 test , t test, univariate and multivariate logistic stepwise regression were used to analyze the data. Results From 2019 to 2020, the prevalence of depression among middle school students in Tianjin was 20.48% , with higher prevalence in girls than in boys and higher prevalence in urban areas than in suburban areas. Multivariate regression results show that smoking, school bullying, parental abuse, Internet addiction , injury , urban area , female , sickness, anemia and sweets are risk factors for depression ; fruits , vegetables , breakfast , high Intensive exercise are protective factors. The OR ( 95%CI ) of depression of school bullying and parental beating and scolding were 4.71 ( 95%CI 3.84 -5.79) and 2.94 ( 95%CI 2.72 - 3.18); the OR ( 95%CI ) of depression of internet addiction students was 2.76 ( 95%CI 2.30 - 3.11); the OR ( 95%CI ) of depression in anemia students was 1.68 ( 95%CI 1.36 - 2.07); compared with non-smokers, the odd ratio(OR) ( 95%CI ) of depression for smoking less than 1 cigarette, 1-11 cigarette, and 11-20 cigarette per day were 1.83 ( 95%CI 0.75 - 2.44), 1.64 ( 95%CI 0.94 -2.84 ), 1.92 ( 95%CI 1.51 - 2.44), respectively; Conclusion The depression level of middle school students in Tianjin is in the middle, and the intervention should be interfered from many aspects, such as cultivating students' good living behavior habits and healthy body, providing good family atmosphere and campus environment.
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Objective To investigate the status and the relationship between obesity and high blood pressure in children and adolescents in Tianjin, and to provide a reference for the development of targeted prevention and control measures for high blood pressure in children and adolescents. Methods In September 2019, a stratified cluster sampling method was used to select 30 403 children and adolescents aged 7-17 from 94 primary and secondary schools in 16 districts in Tianjin. Height, weight and blood pressure were measured by standard methods. SPSS 24.0 was used for χ2 test, variance analysis and binary logistic regression. Results The detection rate of overweight in children and adolescents in Tianjin was 17.28%, including 19.32% in boys and 15.07% in girls. The detection rate of obesity in children and adolescents in Tianjin was 22.79%, including 27.20% in boys and 18.01% in girls. The detection rate of high blood pressure in children and adolescents in Tianjin was 20.88%, including 20.98% in boys and 20.77% in girls. The detection rates of high blood pressure in the normal BMI group, overweight group and obesity group were 14.03%, 23.41% and 36.95%, respectively, and the difference was statistically significant (P<0.001). Compared to the normal BMI group, overweight and obesity were risk factors for high blood pressure in children and adolescents (OR=1.872, 95% CI:1.735~2.021; OR=3.598, 95% CI:3.366~3.827). Conclusion Overweight and obesity were important influencing factors for high blood pressure in children and adolescents aged 7-17 years. Controlling overweight and obesity is an important means to effectively cope with high blood pressure.
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Objective:To explore the changes in the expression of Tau protein and phosphorylated Tau (p-Tau) protein in neurons after spinal cord ischemia-reperfusion injury (SCII).Methods:Ninety-six healthy adult SD rats were randomly divided into a sham operation group ( n=48) and a SCII group ( n=48). Based on the reperfusion time of 3 h, 6 h, 12 h, 24 h, 48 h and 72 h, the SCII group was divided into 6 subgroups ( n=8 per subgroup). Immunohistochemical staining was used to observe the apoptosis of spinal cord neurons in the L 4-L 5 segments and the expression of Tau protein and p-Tau protein. Results:In the sham operation group, the neuron cells were intact, mainly concentrated in the gray matter. Tau protein was seen in a small number of neuron cells, and a small amount of filamentous p-Tau protein in the pernucleus and cytoplasm. There was no significant difference between Tau protein and p-Tau protein expression in neurons at each time point ( P>0.05). In the SCII group, scattered Tau protein was seen in the apoptotic cells while there was a strong positive expression of Tau protein in the non-apoptotic cells. The expression of Tau protein in the SCII group gradually increased after injury, reaching a peak at 48h and plateauing at 72 h, and was significantly different between any 2 time points (except for 72 h) ( P<0.05). In the SCII group, the positive expression of p-Tau protein was observed in the cytoplasm of the apoptotic cells in strips and sheets. It increased rapidly within 6 h but did not change significantly after 6 h, showing no significant difference between any 2 time points afterwards ( P>0.05). There was a statistically significant difference in the expression of Tau protein and p-Tau protein between the SCII group and the sham operation group at each time point ( P<0.05). Conclusion:It is hopeful to reduce the severity of spinal cord injury by regulating the expression of Tau protein and p-Tau protein within 6 to 48 hours after SCII.
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Extrarenal Wilms′ tumor is extremely rare and has no characteristic clinical manifestations. Diagnosis is difficult before surgery, and is often confirmed by histopathology. Comprehensive treatment by surgery, chemotherapy and radiotherapy is currently adopted for such patients, and the overall survival rate can reach about 90%. Here we report a 2-year-old child with Wilms′ tumor in the left scrotum.