23 results on '"Xue-Rong, Li"'
Search Results
2. Clinical characteristics of rheumatic disease-associated hypophysitis: A case series and review of literature
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Rui Yan, Yue-Bo Jin, Xue-Rong Li, Liang Luo, Xiao-Min Liu, and Jing He
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Adult ,Adolescent ,Pituitary Diseases ,Collagen Diseases ,General Medicine ,Middle Aged ,Hypopituitarism ,Young Adult ,Pituitary Gland ,Rheumatic Diseases ,Humans ,Lupus Erythematosus, Systemic ,Autoimmune Hypophysitis ,Hypophysitis ,Glucocorticoids ,Immunosuppressive Agents - Abstract
Rheumatic diseases have been reported to sometimes involve the pituitary gland. This study aims to characterize the clinical features and outcomes of patients with rheumatic disease-associated hypophysitis. We used the electronic medical record system in our hospital to identify nine patients with pituitary involvement in rheumatoid disease. We summarized the clinical characteristics, radiographic findings, treatments, and clinical outcomes of the 9 patients. We also performed a systematic literature review of systemic lupus erythematosus (SLE) cases with pituitary involvement published in PubMed and Wanfang databases from 1995 to 2021, and eight patients with complete information were selected. In the nine-patient cohort, the median age was 54 years, and the spectrum of rheumatic diseases included immunoglobulin G4-related disease (IgG4RD) (4/9), SLE (2/9), vasculitis (2/9), and Sjögren syndrome (SS) (1/9). All patients had pituitary abnormalities on radiological assessment, 6 developed diabetes insipidus (DI), and 8 presented with anterior pituitary hormone deficiencies in the disease duration. All the patients had multisystem involvement. As compared to hypophysitis with IgG4RD (IgG4-H), the age at onset of hypophysitis with SLE (SLE-H) patients was younger [(30.4 ± 16.4) years vs. (56.0 ± 0.8) years] and the disease duration was shorter [(14.0 ± 17.5) months vs. (71.0 ± 60.9) months] (P.05). All patients were managed with glucocorticoids (GC) in combination with another immunosuppressant, and the majority of patients improved within 4 months. Six patients achieved disease remission while four required at least one hormone replacement therapy. Hypophysitis is a rare complication secondary to a variety of various rheumatic diseases that can occur at any stage. GC combined with additional immunosuppressants could improve patients' symptoms; however some patients also required long-term hormone replacement therapy in pituitary disorders.
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- 2022
3. Antioxidant Peptides From Protein Hydrolysate of Marine Red Algae Eucheuma cottonii: Preparation, Identification, and Cytoprotective Mechanisms on H2O2 Oxidative Damaged HUVECs
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Kun-Lai Sun, Min Gao, Yue-Zhen Wang, Xue-Rong Li, Peng Wang, and Bin Wang
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Microbiology (medical) ,Microbiology - Abstract
Graphical AbstractThe mechanisms of antioxidant peptides EP4 and EP5 on protecting HUVECs from oxidative damage.
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- 2022
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4. Antioxidant Peptides From Protein Hydrolysate of Marine Red Algae
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Kun-Lai, Sun, Min, Gao, Yue-Zhen, Wang, Xue-Rong, Li, Peng, Wang, and Bin, Wang
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To screen, prepare, identify, and evaluate the activities of natural antioxidants for treating chronic diseases caused by oxidative stress. Two algal proteins, namely ZD10 and ZD60, precipitated with 10 and 60% (NH
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- 2021
5. Risk factors analysis of ischemic cerebrovascular disease combined with restless legs syndrome
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Xue-rong LI, Wei-liang ZHANG, Yu-jing HUANG, Yong-bin SONG, Heng XUE, Li YAN, Yi-la MA, Rouziaji MUTIPAER, and Jiang-tao XU
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Brain ischemia ,Cerebrovascular disorders ,Risk factors ,mental disorders ,Restless legs syndrome ,Regression analysis ,lcsh:Neurology. Diseases of the nervous system ,lcsh:RC346-429 - Abstract
Objective To explore the risk factors for restless legs syndromes (RLS) in patients with ischemic cerebrovascular disease (ICVD). Methods There were 370 patients with ICVD, 45 cases were combined with RLS (RLS group) and 325 cases were not combined with RLS (non-RLS group). The general clinical data [sex, age, body mass index (BMI), education, nationality, occupation, lifestyle, physical exercise, medical history, history of gestation and age of menopause in female] were recorded, and related chemical examinations [white cell count (WBC), hemoglobin (Hb), serum creatinine (Cr), blood urea nitrogen (BUN), fasting blood glucose, serum lipid, plasma homocysteine (Hcy), serum iron] were performed. Results Compared with non-RLS group, BMI of patients in RLS group was higher (t = 2.457, P = 0.014), Hb (t = 2.819, P = 0.005) and serum iron (t = 2.168, P = 0.024) were lower. Multivariate forward Logistic regression analysis showed that low Hb (OR = 1.049, 95%CI: 1.017-1.082; P = 0.002) and serum iron (OR = 1.121, 95% CI: 1.002-1.254; P = 0.047) were the risk factors for ICVD combined with RLS patients. Conclusions RLS is common among patients with ICVD, and they have low Hb and serum iron levels. DOI: 10.3969/j.issn.1672-6731.2017.10.008
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- 2017
6. [Effect of ultraviolet irradiation on the proliferation of acute promyelocytic leukemia cells under hypoxic conditions and related mechanisms]
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Yi-Lin, Wang, Ling-Zhen, Wang, Jian-Dong, Sun, Xue-Rong, Li, Zhi, Wang, and Li-Rong, Sun
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Leukemia, Promyelocytic, Acute ,Humans ,Apoptosis ,论著·实验研究 ,Cell Hypoxia ,Cell Proliferation - Abstract
OBJECTIVE: To study the effect of 280 nm-LED ultraviolet irradiation on the proliferation of acute promyelocytic leukemia (APL) HL-60 cells under hypoxic conditions and related mechanism. METHODS: HL-60 cells in the logarithmic growth phase were selected and divided into control, hypoxia, ultraviolet and hypoxia+ultraviolet groups. The cells in the hypoxia group were treated with cobalt chloride (with a final concentration of 150 μmol/L), those in the ultraviolet group were irradiated by 280 nm-LED ultraviolet with an energy intensity of 30 J/m(2), and those in the hypoxia+ultraviolet group were treated with cobalt chloride and then irradiated by 280 nm-LED ultraviolet. After 48 hours of treatment, the cells were placed under an invert microscope to observe cell morphology. CCK-8 assay was used to measure the inhibition rate of cell proliferation. Annexin V-FITC/PI double staining flow cytometry was used to evaluate cell apoptosis. Quantitative real-time PCR was used to measure the mRNA expression of Bcl-2. Each experiment above was repeated three times independently. RESULTS: Compared with the control group, the experimental groups showed shrinkage, decreased brightness, and disordered arrangement of cells, and the number of cells decreased over the time of culture. There were significant differences in the inhibition rate of cell proliferation and cell apoptosis rate among the groups (P < 0.01), and the hypoxia+ultraviolet group showed the strongest inhibition of cell proliferation and induction of cell apoptosis, followed by the ultraviolet group and the hypoxia group. Compared with the control group, the other three groups had a gradual reduction in the mRNA expression of Bcl-2, and the hypoxia+ultraviolet group had a significantly greater reduction than the hypoxia and ultraviolet groups (P < 0.01). CONCLUSIONS: Both hypoxia and ultraviolet irradiation can inhibit the proliferation of HL-60 cells and induce cell apoptosis, and ultraviolet irradiation has a better effect on proliferation inhibition and cell apoptosis under hypoxic conditions than under normoxic conditions, possibly by downregulating the mRNA expression of Bcl-2.
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- 2019
7. Purification and Identification of Antioxidant Peptides from Protein Hydrolysate of Scalloped Hammerhead (Sphyrna lewini) Cartilage
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Xue-Rong Li, Li Li, Chang-Feng Chi, and Bin Wang
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0301 basic medicine ,Antioxidant ,animal structures ,DPPH ,Protein Hydrolysates ,Linoleic acid ,medicine.medical_treatment ,scalloped hammerhead (Sphyrna lewini) ,cartilage ,peptide ,antioxidant activity ,Pharmaceutical Science ,Hydrolysate ,Antioxidants ,Article ,Lipid peroxidation ,03 medical and health sciences ,chemistry.chemical_compound ,0404 agricultural biotechnology ,Superoxides ,Drug Discovery ,medicine ,Butylated hydroxytoluene ,Animals ,Amino Acids ,Pharmacology, Toxicology and Pharmaceutics (miscellaneous) ,lcsh:QH301-705.5 ,chemistry.chemical_classification ,Sphyrna lewini ,030109 nutrition & dietetics ,biology ,04 agricultural and veterinary sciences ,Free Radical Scavengers ,biology.organism_classification ,040401 food science ,Amino acid ,chemistry ,Biochemistry ,lcsh:Biology (General) ,Lipid Peroxidation ,Peptides ,Oxidation-Reduction ,Elasmobranchii - Abstract
The aim of this study was to purify and identify peptides with antioxidant properties from protein hydrolysate of scalloped hammerhead (Sphyrna lewini) cartilage. Cartilaginous proteins of the scalloped hammerhead were extracted by guanidine hydrochloride, and three antioxidant peptides, named enzymolysis peptide of scalloped hammerhead cartilage A (SCPE-A), SCPE-B and SCPE-C, were subsequently isolated from the hydrolysate of the cartilaginous proteins using ultrafiltration and chromatography. The amino acid sequences of SCPE-A, SCPE-B and SCPE-C were identified as Gly-Pro-Glu (GPE), Gly-Ala-Arg-Gly-Pro-Gln (GARGPQ), and Gly-Phe-Thr-Gly-Pro-Pro-Gly-Phe-Asn-Gly (GFTGPPGFNG), with molecular weights of 301.30 Da, 584.64 Da and 950.03 Da, respectively. As per in vitro activity testing, SCPE-A, SCPE-B and SCPE-C exhibited strong scavenging activities on 2,2-diphenyl-1-picrylhydrazyl radicals (DPPH•) (half elimination ratio (EC50) 2.43, 2.66 and 1.99 mg/mL), hydroxyl radicals (HO•) (EC50 0.28, 0.21 and 0.15 mg/mL), 2,2′-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid radicals (ABTS+•) (EC50 0.24, 0.18 and 0.29 mg/mL), and superoxide anion radicals ( O 2 − •) (EC50 0.10, 0.14 and 0.11 mg/mL). In addition, SCPE-A showed inhibition activity similar to butylated hydroxytoluene (BHT) in lipid peroxidation in a linoleic acid model system. The amino acid residues of Gly, Pro and Phe could positively influence the antioxidant activities of GPE, GARGPQ and GFTGPPGFNG. These results suggested that GPE, GARGPQ and GFTGPPGFNG might serve as potential antioxidants and be used as food additives and functional foods.
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- 2017
8. The Research on Neural Network Diagnosis and Treatment System of Child Mental Health Disorders
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Xue Rong Li, Xiao Ping Fan, Bing Mei Chen, Zhi Ming Zhou, and Han Wen Zhou
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Treatment system ,medicine.medical_specialty ,Artificial neural network ,Child psychiatrists ,ICD-10 ,General Medicine ,computer.software_genre ,Mental health ,Expert system ,Epidemiology ,medicine ,Child and adolescent psychiatry ,Psychiatry ,computer - Abstract
The research of diagnosis and treatment system of child mental health disorders is based on artificial neural network and expert system. It combines the diagnosis standard of ICD 10, DSM IV with 40 years clinical experiences and knowledge of senior child psychiatrists. It also combines computer science with child psychiatry, child psychology, psychological estimate, psychological therapy and so on. The learning samples come from the epidemiological data in more than a dozen nationwide hospitals. The correct rate of system diagnosis is 99%. The system can diagnose 61 kinds of child mental health disorders and give a treatment method suggestion.
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- 2014
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9. [Expression of PTEN in Myocardial Tissue in Coronary Heart Disease]
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Xue-rong, Li, Yong, He, Yu-jia, Lei, Xe-he, Qin, Qing-tao, Wei, Xin-min, Pan, Li-juan, Li, and Lin, Zhang
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Myocardium ,PTEN Phosphohydrolase ,Humans ,Coronary Artery Disease ,RNA, Messenger - Abstract
To observe the expression of phosphatase and tensin homology deleted on chromosome ten (PTEN) in myocardial tissue in patients with coronary heart disease, and explore the relevance between the expression of PTEN and the occurrence and development of coronary heart disease.A total of 16 death cases with pathological diagnosis of coronary heart disease were collected as experimental group, and 19 cases without myocardial lesions were selected as control group. The expression of PTEN protein and its mRNA were detected by immunohistochemistry and real-time fluorescence quantitative PCR respectively. The correlation between the expression of PTEN and the pathogenesis of coronary heart disease was analyzed.The expression of PTEN protein in myocardium in cases with coronary heart disease was significantly lower compared with the control group (P0.05). There was no statistical difference of the expression of PTEN mRNA between experimental and control group (P0.05).PTEN may be involved in the occurrence and development of coronary heart disease.
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- 2016
10. [Relationship between clinical features and cognitive function in patients with childhood and adolescence-onset schizophrenia]
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Yang, Cao, Chuan-Yuan, Kang, Shuai, Wan, Meng-Meng, DU, Kai-Jing, Ding, and Xue-Rong, Li
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Adult ,Male ,Cognition ,Logistic Models ,Adolescent ,Intelligence ,Schizophrenia ,Educational Status ,Humans ,Female ,Schizophrenic Psychology ,Age of Onset ,Child - Abstract
To explore the factors influencing cognitive functions in patients with childhood and adolescence-onset schizophrenia.The clinical data of 78 patients with childhood and adolescence-onset schizophrenia who met with the criteria of ICD-10 for schizophrenia were retrospectively reviewed. The cognitive functions were evaluated by the Chinese Wechsler Intelligence Scale for Children (C-WISC), the Wisconsin Card Sorting Test (WCST), digit span backward and P300. The clinical symptoms were evaluated by the Positive and Negative Syndrome Scale (PANSS).The patients with a lower education level or earlier onset of age had a longer P3 latency at the P300Fz area. The patients with a higher parental education level had higher scores of full intelligence quotient (FIQ), verbal intelligence quotient (VIQ), performance intelligence quotient (PIQ), conceptual level and completed categories of WCST and backward numeric order reciting. The patients with higher PANSS negative subscale scores had lower scores of FIQ, VIQ, PIQ, completed categories and conceptual level of WCST and backward numeric order reciting. The patients with a longer stabilization time had higher backward numeric order reciting scores.The severity of negative symptoms of the patients and the educational level of their parents are major factors influencing cognitive functions in patients with childhood and adolescence-onset schizophrenia.
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- 2015
11. [Construction of Plasmodium falciparum signal peptide peptidase-GFP mutant and its expression analysis in the malaria parasite]
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Xue-rong, Li, Yin-juan, Wu, Mei, Shang, Ye, Li, Jin, Xu, Xin-bing, Yu, and Chishti, Athar
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Base Sequence ,Genetic Vectors ,Mutation ,Plasmodium falciparum ,Animals ,Aspartic Acid Endopeptidases ,Electrophoresis, Polyacrylamide Gel ,Transfection ,Polymerase Chain Reaction - Abstract
To construct recombinant plasmid pSPPcGT which contains signal peptide peptidase gene of Plasmodium falciparum (PJSPP) and GFP, and transfect into P. falciparum (3D7 strain) to obtain mutant parasites which can express PJSPP-GFP.Plasmodium falciparum(3D7 strain) genomic DNA was extracted from cultured malaria parasites. The C-terminal region of PJSPP, an 883 bp gene fragment was amplified by PCR, and then cloned into pPM2GT vector to get recombinant vector pSPPcGT. The recombinant vectors were identified by PCR, double restriction enzyme digestion and DNA sequencing. pSPPcGT vector was transfected into malaria parasites. The positive clones were selected by adding inhibitor of Plasmodium falciparum dihydrofolate reductase WR99210 to the culture medium. The pSPP-GFP-transfected parasites were fixed with methanol, stained with DAPI, and observed under immunofluorescence microscope. The PJSPP-GFP expression in P. falciparum was identified by SDS-PAGE and Western blotting.The C-terminal region of PJSPP was amplified from P.falciparum (3D7 strain) genomic DNA by PCR with the length of 883 bp. The constructed recombinant vectors were identified by PCR screening, double restriction enzyme digestion and DNA sequencing. The pSPPcGT vector was transfected into P. falciparum and the positive clones were selected by WR99210. GFP fluorescence was observed in transfected parasites by immunofluorescence microscopy, and mainly located in the cytoplasm. The PJSPP-GFP expression in malaria parasites was confirmed by Western blotting with a relative molecular mass of Mr 64,000.Recombinant vector PJSPP-GFP is constructed and transfected into P. falciparum to obtain P. falciparum mutant clone which can express PfSPP-GFP.
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- 2014
12. [Effect of parent training in combination with methylphenidate treatment on family relationships for children with attention deficit/hyperactivity disorder]
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Yan, Zhang, Chuan-Yuan, Kang, Xing-Rong, Zhao, Xu, Xuan, Kai-Jing, Ding, Rui-Xiang, Liu, Yan-Jiao, Wang, Run-Xu, Yang, Xue-Rong, Li, and Shuai, Wan
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Male ,Parents ,Adolescent ,Attention Deficit Disorder with Hyperactivity ,Methylphenidate ,Humans ,Central Nervous System Stimulants ,Female ,Parent-Child Relations ,Child ,Self Concept - Abstract
To investigate the effect of parent training combined with methylphenidate treatment on family relationships in children with attention deficit/hyperactivity disorder (ADHD).Fifty-nine parents of children with ADHD under methylphenidate treatment participated in a modified 5-week training program. The intervention effect was evaluated using the Conners Parent Symptom Questionnaire, ADHD Rating Scale-IV Home Version (ADHD-RS-IV Home Version), Caregiver Strain Questionnaire, Parent-Child Relationship Self-rating Scale and Piers-Harris Children's Self-Concept Scale. Parents also completed the training satisfaction survey before and after the intervention.After the 5-week parent training, compared with the baseline values, total scores of Conners Parent Symptom Questionnaire and scores of conduct problems and anxiety significantly decreased, and scores of attention deficit, hyperactivity, impulsivity and oppositional defiant behaviors of ADHD-RS-IV Home Version, and Caregiver Strain Questionnaire total scores were all significantly decreased (P0.05), while total scores of the Parent-Child Relationship Self-Rating Scale and Piers-Harris Children's Self-Concept Scale were significantly increased (P0.05).Modified 5-week parent training program may improve parent-child relationship and reduce parenting stress in ADHD families.
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- 2014
13. [Study on attention-deficit hyperactivity disorder in children based on resting-state functional magnetic resonance imaging]
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Run-Xu, Yang, Kai-Jing, Ding, Rui-Xiang, Liu, Xue-Rong, Li, Shuai, Wan, and Chuan-Yuan, Kang
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Male ,Adolescent ,Attention Deficit Disorder with Hyperactivity ,Cerebellum ,Animals ,Brain ,Humans ,Female ,Child ,Magnetic Resonance Imaging ,Frontal Lobe - Abstract
To compare resting-state functional magnetic resonance imaging (fMRI) findings of children with attention-deficit hyperactivity disorder (ADHD) and normal children, and to investigate the possible mechanism of brain dysfunction in children with ADHD.Resting-state fMRI was performed on 18 children who met the DSM-IV diagnostic criteria for ADHD (ADHD group) and 18 normal children (control group) matched for age, sex, IQ, degree of education and handedness. The two groups were compared in terms of amplitude of low frequency fluctuation (ALFF) and regional homogeneity (ReHo).Compared with the control group, the ADHD group had decreased ALFF in the bilateral posterior lobes of the cerebellum and the left side of the pons, increased ALFF in the right precentral gyrus, decreased ReHo in the left medial frontal gyrus, right superior frontal gyrus, and left precuneus, and increased ReHo in the left anterior lobe of the cerebellum, left caudate nucleus, right parahippocampal gyrus, left precentral gyrus, and right middle frontal gyrus.In resting state, children with ADHD have decreased brain activity in some regions, including the cerebellum and frontal cortex, compared with normal children, which supports the hypothesis of dysfunctional fronto-cerebellar circuits in ADHD.
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- 2013
14. [Influential factors for methylphenidate treatment compliance in children with attention deficit hyperactivity disorder]
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Kai-Jing, Ding, Yun-Fen, Liu, Chuan-Yuan, Kang, Rui-Xiang, Liu, Xue-Rong, Li, and Shuai, Wan
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Male ,Logistic Models ,Adolescent ,Attention Deficit Disorder with Hyperactivity ,Child, Preschool ,Emotions ,Methylphenidate ,Humans ,Central Nervous System Stimulants ,Female ,Child ,Medication Adherence - Abstract
To investigate influential factors for the tendency to medicate and medication compliance in children with attention deficit hyperactivity disorder (ADHD).A total of 188 children aged from 5 to 16 years, who were initially diagnosed with ADHD according to DSM-IV criteria, were included in the study. They underwent symptom assessment and cognitive function test. The compliance of methylphenidate treatment was evaluated.Patients with better emotional state, and fewer oppositional and hyperactive behaviors and those who had a family history of psychiatric diseases and who obtained lower scores in the number cancellation test (NCT), were more prone to medication and/or exhibited better medication compliance. Logistic regression analysis showed that fewer oppositional and hyperactive behaviors and lower NCT scores were the predictive factors for a higher tendency to medicate, and a better emotional state was the predictive factor for better medication compliance. Patients of predominantly inattentive type were more prone to medication and showed better medication compliance, as compared with those of combined type. Gender, age and symptom severity were not associated with the tendency to medicate and/or medication compliance.There is a need to enhance medication compliance in children with ADHD who have hyperactive, impulsive and oppositional behaviors, and to improve their long-term social functions.
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- 2013
15. Clinical presentation and outcome of pediatric patients with hemophagocytic lymphohistiocytosis in China: A retrospective multicenter study
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Xiaojun Xu, Yongmin Tang, Guo-Cun Jia, Xiu-Li Ju, Hongsheng Wang, Ning-Ling Wang, Xue-Rong Li, Hong-Man Xue, Wei-Hong Zhao, Pei-Fang Xiao, Hong-Yu Shi, Yi-Jin Gao, and Yan Xiao
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Male ,Pediatrics ,medicine.medical_specialty ,Multivariate analysis ,Adolescent ,Vesicular Transport Proteins ,Disease ,Lymphohistiocytosis, Hemophagocytic ,03 medical and health sciences ,Munc18 Proteins ,0302 clinical medicine ,hemic and lymphatic diseases ,medicine ,Humans ,UNC13D ,Child ,Etoposide ,Retrospective Studies ,Genetic testing ,Hemophagocytic lymphohistiocytosis ,medicine.diagnostic_test ,Perforin ,business.industry ,Infant, Newborn ,Infant ,Membrane Proteins ,Retrospective cohort study ,Hematology ,Prognosis ,medicine.disease ,Histiocytosis ,Oncology ,Child, Preschool ,030220 oncology & carcinogenesis ,Mutation ,Pediatrics, Perinatology and Child Health ,Drug Therapy, Combination ,Female ,business ,Biomarkers ,Follow-Up Studies ,030215 immunology ,medicine.drug - Abstract
Background Hemophagocytic lymphohistiocytosis (HLH) is a heterogeneous disease with major diagnostic and therapeutic difficulties. A large-scale multicenter study of pediatric HLH is still lacking in China. Procedure The Histiocytosis Study Group of the Chinese Pediatric Society conducted this retrospective study in 2014. A total of 323 patients diagnosed with HLH between 2011 and 2013 from 12 hospitals were registered. Results The median age at diagnosis was 2.2 years (range, 0–14.6 years), with a peak age of HLH onset at 0 to 3 years (63%). Mutations in HLH-related genes were found in 27.9% (24/86) patients who underwent genetic testing. PRF1, UNC13D, STXBP2 and LYST were the predominant genes involved. Sixteen patients (66.7%) presented with only monoallelic mutations in one gene. Epstein-Barr virus (EBV) infection was the major condition related to HLH, which was documented in 74.4% (201/270) of the patients who underwent EBV detection. Of 252 evaluable patients, 64.7% (163) achieved non-active disease at the eighth week and patients treated with a protocol containing etoposide presented higher remission rates (75.6% vs. 46.8%, P < 0.001). In multivariate analysis, a younger age at diagnosis (
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- 2016
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16. [Influence of crocin on proliferation in vitro and function of dendritic cells derived from bone marrow of children with acute leukemia]
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Hui-Juan, Xu, Kun-Peng, Zhang, Ren, Zhong, Yan-Xia, Zhao, Xue-Rong, Li, Yuan, Lu, Ai-Qin, Song, Xiu-Ying, Pang, and Li-Rong, Sun
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Leukemia ,T-Lymphocytes ,Tumor Cells, Cultured ,Humans ,Bone Marrow Cells ,Dendritic Cells ,Lymphocyte Culture Test, Mixed ,Child ,Carotenoids ,Cell Proliferation - Abstract
This study was purposed to investigate the effect of crocin on the proliferation in vitro and immune function of dendritic cells (DC) derived from the bone marrow of children with acute leukemia. The mononuclear cells were isolated from bone marrow of leukemia children by Ficoll-Hypaque. The experiment was divided into six groups: blank control group (A), crocin 1.25 mg/ml group (B), cytokines (rhGM-CSF 75 ng/ml+rhIL-4 75 ng/ml+rhTNF-α 50 ng/ml) group (C), cytokines+crocin 0.3125, 1.25 or 5.0 mg/ml groups (D, E, F). The numbers of DC were counted and the phenotypes of DC were determined by flow cytometry on the ninth day of culture. The DC of different groups were mixed with T cells just separated from peripheral blood of another children with acute lymphoblastic leukemia, and cultured with rhIL-2 200 U/ml for 5 d. The function of DC was detected by mixed lymphocyte reaction (MLR). The results indicated that the test groups and control group all obtained a certain amount of typical DC, but the DC numbers in test groups were all higher than those in control group (P0.01). Cultured for 9 days, the rates of CD1a(+), CD83(+), and HLA-DR(+) in group C, D, E, F were higher than group A (P0.01). There was no statistically significant difference between A and B groups (P0.05). MLR showed that with the increasing of DC, the stimulation index of T cells in group A and B was not rising (P0.05); the stimulated index of T cells in group C and E was significantly rising, there was statistically significant difference between them (P0.01). When the number of stimulated cells was the same, the stimulation index of T cell in group E was the highest (P0.01). It is concluded that the capability of DC proliferation promoted by crocin alone is lower than that of its combination with rhGM-CSF, rhIL-4 and rhTNF-α, but the crocin can synergically promote the maturity of DC cooperating with rhGM-CSF, rhIL-4 and rhTNF-α. The DC induced by crocin can particularly enhance the proliferation of T cells.
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- 2012
17. Neural Network and Artificial Intelligence Study in Psychiatric Intelligent Diagnosis
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Xue Rong Li, Bing Mei Chen, Xiao Ping Fan, and Zhi Ming Zhou
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Structure (mathematical logic) ,medicine.medical_specialty ,Artificial neural network ,Hidden node problem ,Computer science ,business.industry ,Training time ,Mode (computer interface) ,Convergence (routing) ,Key (cryptography) ,medicine ,Artificial intelligence ,Intelligent control ,Psychiatry ,business - Abstract
We have applied intelligent control theory into medical psychiatric diagnosis. During studying, we find selecting suitable neural network structure is very important to BP network. Suitable neural network structure will bring less error to diagnosis system. It is key to success or failure of psychiatric intelligent diagnosis system. We have found some rules that suit our diagnosis system. Such as : full connecting mode is better and at the same time adding suitable hidden node number can improve convergence effect and reduce error of network. But adding hidden layer number doesn’t always improve network convergence effect under our studying. At the same time it makes network convergence speed to become slower and makes network training time to increase. We build an intelligent diagnosis system. Comparing the diagnosis by computer with the senior child psychiatrists, the consistent rate of intelligent diagnosis is 99%.
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- 2012
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18. [Effect of Bacillus Calmette-Guerin on the expansion of dendritic cells from peripheral blood of pediatric patients with leukemia in vitro]
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Jing, Yang, Li-Rong, Sun, Xiu-Ying, Pang, Yuan, Lu, Xue-Rong, Li, and Ai-Qin, Song
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Leukemia ,BCG Vaccine ,Humans ,Cell Differentiation ,Dendritic Cells ,Child ,Mycobacterium bovis ,Cells, Cultured - Abstract
This study was purposed to investigate the effect of bacillus calmette-guerin (BCG) on the expansion of human dendritic cells (DC) from peripheral blood of pediatric patients with leukemia in vitro. The experiment was divi-ded into two groups: the control and the test group, and the latter group was divided into 3 subgroups: BCG (only BCG), GTI (GM-CSF, TNF-α, IL-4) and GTIB (GM-CSF, TNF-α, IL-4 plus BCG). On day 9 of culture the DCs were counted in each groups, the phenotypes of DC were determined by flow cytometry and these DC were stained with Wright-Giemsa for observation and photography under microscopy. The results showed that the test groups all obtained a certain amount of typical DC; the number of DC in the BCG subgroup is lower than that in the GTI and GTIB subgroups (t=4.20; 6.36, p0.01); there was no significant difference between the GTI and the GTIB subgroups (t=2.25; p0.05). The rate of CD1a+ in the BCG subgroup was obviously higher than that in the control group (t=3.04, p0.05), but was lower than that in the GTI and the GTIB subgroups (t=2.79, 6.41, p0.05), there was no significant difference between the GTI and the GTIB subgroups (t=0.65, p0.05). The rate of HLA-DR+, CD83+ in the BCG group was higher than that in the control group (t=4.77, 4.15; p0.05), but lower than that in the GTI and the GTIB subgroups (t=6.65, 3.19; p0.05). The rate of HLA-DR+, CD83+ in the GTI subgroup was lower than that in the GTIB subgroup (t=5.64, 2.98; p0.05). It is concluded that BCG not only promotes the proliferation of DC derived from human peripheral blood of leukemia patients in vitro, but also cooperates with rhGM-CSF, rhTNF-α and rhIL-4 in promoting the maturation of DCs.
- Published
- 2010
19. [Proliferative inhibition and apoptotic induction effects of crocin on human leukemia HL-60 cells and their mechanisms]
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Hui-Juan, Xu, Ren, Zhong, Yan-Xia, Zhao, Xue-Rong, Li, Yuan, Lu, Ai-Qin, Song, Xiu-Ying, Pang, Ru-Yong, Yao, and Li-Rong, Sun
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Leukemia ,Proto-Oncogene Proteins c-bcl-2 ,Gene Expression Regulation, Leukemic ,Cell Cycle ,Humans ,Apoptosis ,HL-60 Cells ,Carotenoids ,Cell Proliferation ,Phytotherapy ,bcl-2-Associated X Protein - Abstract
This study was to investigate the proliferative inhibition and apoptosis of human leukemia HL-60 cells induced by crocin and their possible mechanisms. The cell viability was tested by cell counting. The morphology of HL-60 cells was observed by fluorescence microscopy. The MTT assay was used to evaluate the inhibitory effect of crocin on the growth of HL-60 cells. Flow cytometry was used to measure the cell cycle. RT-PCR was used to detect bcl-2 and bax expression. The results indicated that the growth of HL-60 cells was inhibited remarkably in the dose and time dependent way. When the crocin concentration was higher than 5 mg/ml, the percentage of apoptotic HL-60 cells was not increased, on the contrary this percentage decreased, the cells manifested necrosis. Flow cytometry profiles revealed that cells were blocked in G₀/G₁ phase, the cell proliferation was inhibited obviously at 5 mg/ml. RT-PCR detection revealed that the expression of bcl-2 was down-regulated strikingly and bax was up-regulated. It is concluded that the crocin can inhibit the proliferation of HL-60 cells effectively, and block cells in G₀/G₁ phase. The mechanisms by which crocin induced apoptosis in HL-60 cells may be related to the inhibition of bcl-2 and activation of bax.
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- 2010
20. [Influence of Interferon alpha-2b on proliferation inhibition and apoptosis induction in HL-60 cells]
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Hong, Yu, Li-Rong, Sun, Xiu-Ying, Pang, Xue-Rong, Li, Yuan, Lu, and Ai-Qin, Song
- Subjects
Humans ,Interferon-alpha ,Antineoplastic Agents ,Apoptosis ,HL-60 Cells ,CD13 Antigens ,Interferon alpha-2 ,Recombinant Proteins ,Cell Proliferation - Abstract
To investigate the effects of interferon alpha-2b on proliferation and apoptosis in HL-60 cells, HL-60 cells were cultured in different concentrations of IFN alpha-2b. The morphologic changes were observed by Wright's and acridine orange (AO) and ethidium bromide (EB) staining respectively. Inhibition of proliferation was detected by MTT. Expression of CD13(+) was checked by indirect fluoroimmunoassay. The results showed that apoptosis rate of HL-60 cells assayed by the above-mentioned two methods was (51 +/- 2)% and (78 +/- 3)% respectively and OD(570) values of proliferation inhibited were 1.8 +/- 0.1 and 1.0 +/- 0.1 respectively when the concentrations of the IFN(alpha-2b) were 500 and 10,000 U/ml in culture for 48 hours. Morphology and count of CD13(+) cells were changed. CD13(+) cell expression rate was (62 +/- 2)% and (30 +/- 3)% respectively when the concentrations of the IFN(alpha-2b) were 500 and 10,000 U/ml in culture for 48 hours. It is concluded that IFN(alpha-2b) can enhance the apoptosis of HL-60 cells, inhibit their proliferation, promote their maturation and differentiation.
- Published
- 2007
21. [Effect of nimodipine on mechanisms of HL-60 cell apoptosis induced by cytarabine]
- Author
-
Li-Rong, Sun, Bin-Chang, Gao, Xiu-Ying, Pang, Yuan, Lu, Xue-Rong, Li, and Ai-Qin, Song
- Subjects
Gene Expression Regulation, Neoplastic ,Antimetabolites, Antineoplastic ,Proto-Oncogene Proteins c-bcl-2 ,Drug Resistance, Neoplasm ,Cytarabine ,bcl-X Protein ,Humans ,Apoptosis ,Drug Synergism ,HL-60 Cells ,Nimodipine - Abstract
The aim was to study the mechanisms of HL-60 cell apoptosis induced by nimodipine (NMDP) and cytarabine (Ara-C). The DNA fragment was detected by agarose gel electrophoresis. The expressions of bcl-2 and bax gene proteins related with apoptosis were investigated by immunohistochemistry. The results showed that HL-60 cell apoptosis rate had been increasing in the experimental groups compared with the control group since culturing 8 hours. The expression of Bcl-2 protein was lower and the expression of Bax protein was higher in the experimental groups than that in the control group, while ratio of bcl-2/bax was lower in the experimental groups than that in the control group. It is concluded that NMDP and Ara-C induce apoptosis of HL-60 cells, and the mechanism of apoptosis induced by them may down-regulate the expression of bcl-2 gene and up-regulate the expression of bax gene. The mechanism of HL-60 cell apoptosis induced by Ara-C and NMDP is probably associated with the down-regulation of Bcl-2 protein expression.
- Published
- 2007
22. [Clinical observation of interferon alpha-2b intralesional injection in treatment of childhood refractory solid tumor]
- Author
-
Li-rong, Sun, Xiu-ying, Pang, Yuan, Lu, Xue-rong, Li, Ai-qin, Song, and Qian, Dong
- Subjects
Male ,Treatment Outcome ,Neoplasms ,Humans ,Interferon-alpha ,Antineoplastic Agents ,Female ,Injections, Intralesional ,Interferon alpha-2 ,Child ,Recombinant Proteins - Published
- 2004
23. Diagnosis of attention deficit disorder with hyperactivity in Chinese boys
- Author
-
Lin Yan Su, Xue Rong Li, Christopher K. Varley, and Brenda D. Townes
- Subjects
Cross-Cultural Comparison ,Male ,medicine.medical_specialty ,China ,Psychological Tests ,Social adjustment ,Teacher rating ,Psychometrics ,Attention deficit disorder ,education ,Significant group ,Psychiatry and Mental health ,El Niño ,Attention Deficit Disorder with Hyperactivity ,Learning disability ,Developmental and Educational Psychology ,medicine ,Humans ,medicine.symptom ,Psychology ,Child Behavior Checklist ,Psychiatry ,Child - Abstract
Parental and teacher ratings of adjustment on the Achenbach Child Behavior Checklist and Teacher Rating Form were obtained on 39 subjects diagnosed as having attention deficit disorder with hyperactivity (ADDH), 31 subjects with ADDH plus learning disability (ADDH-LD), and 29 controls. Subjects were all males between the ages of 9 and 11 years and resided in Changsha, People's Republic of China. Significant group differences were found between the two clinical groups and the control group. Ratings by parents and teachers of the ADDH and ADDH-LD groups indicated more behavior problems and poorer social adjustment than controls. ADDH and ADDH-LD groups were not significantly different from one another except on ratings of school and learning problems.
- Published
- 1989
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