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This study aimed to obtain the first national estimate of the prevalence of autism spectrum disorder (ASD) in Chinese children. We targeted the population of 6 to 12-year-old children for this prevalence study by multistage convenient cluster sampling. The Modified Chinese Autism Spectrum Rating Scale was used for the screening process. Of the target population of 142,086 children, 88.5% (n = 125,806) participated in the study. A total of 363 children were confirmed as having ASD. The observed ASD prevalence rate was 0.29% (95% CI: 0.26%-0.32%) for the overall population. After adjustment for response rates, the estimated number of ASD cases was 867 in the target population sample, thereby achieving an estimated prevalence of 0.70% (95% CI: 0.64%-0.74%). The prevalence was significantly higher in boys than in girls (0.95%; 95% CI: 0.87%-1.02% versus 0.30%; 95% CI: 0.26%-0.34%; P < 0.001). Of the 363 confirmed ASD cases, 43.3% were newly diagnosed, and most of those (90.4%) were attending regular schools, and 68.8% of the children with ASD had at least one neuropsychiatric comorbidity. Our findings provide reliable data on the estimated ASD prevalence and comorbidities in Chinese children.
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This study aimed to obtain the first national estimate of the prevalence of autism spectrum disorder (ASD) in Chinese children. We targeted the population of 6 to 12-year-old children for this prevalence study by multistage convenient cluster sampling. The Modified Chinese Autism Spectrum Rating Scale was used for the screening process. Of the target population of 142,086 children, 88.5% (n = 125,806) participated in the study. A total of 363 children were confirmed as having ASD. The observed ASD prevalence rate was 0.29% (95% CI: 0.26%-0.32%) for the overall population. After adjustment for response rates, the estimated number of ASD cases was 867 in the target population sample, thereby achieving an estimated prevalence of 0.70% (95% CI: 0.64%-0.74%). The prevalence was significantly higher in boys than in girls (0.95%; 95% CI: 0.87%-1.02% versus 0.30%; 95% CI: 0.26%-0.34%; P < 0.001). Of the 363 confirmed ASD cases, 43.3% were newly diagnosed, and most of those (90.4%) were attending regular schools, and 68.8% of the children with ASD had at least one neuropsychiatric comorbidity. Our findings provide reliable data on the estimated ASD prevalence and comorbidities in Chinese children.
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Objective To investigate the relationship between neonatal umbilical cord blood cytokine interferon-γ (IFN-γ),interleukin-4 (IL-4),interleukin-12 (IL-12),interleukin-18 (IL-18) and hepatitis B virus (HBV) intrauterine infection.Methods Seventy-five newborns delivered by HBsAg-positive pregnant women in the First Hospital of Hebei Medical University and the Fifth Hospital of Shijiazhuang from December 2017 to June 2018 were selected as observation group.According to the results of five items of hepatitis B and HBV DNA test in cord blood of newborns,17 of them were positive as intrauterine infection group,and 58 of them were negative as uninfection intrauterine group.Forty-three newborns delivered by healthy pregnant women with negative HBsAg were taken as control group.The levels of cytokines IFN-γ,IL-4,IL-12 and IL-18 in cord blood of neonates were detected by ELISA,Results The levels of IFN-γ,IL-4,IL-12 and IL-18 in the newborns of intrauterine infection group were (409.51 ±51.77),630.51(612.49,647.33),85.60(56.11,133.99),32.41 (23.04,87.53) ng/L.The levels in the uninfected intrauterine Group were (523.87 ± 38.45),573.33 (531.95,598.38),186.53 (77.77,302.66),125.99(63.32,202.73) ng/L.The levels in the control group were (509.39±73.02),565.83 (443.40,620.82),199.89 (128.92,289.30),152.98 (86.76,188.57) ng/L.There were significant differences in IFN-γ,IL-4,IL-12,IL-18 between the intrauterine infection group and the uninfected intrauterine group and the control group (all P＜0.01).There was no significant difference between the uninfected group and the control group (all P＞0.05).Conclusion The decrease of IFN-γ,IL-12,IL-18 and the increase of IL-4 in cord blood of neonates result in the decrease of viral clearance ability and the failure of HBV clearance,which leads to intrauterine infection of neonates with HBV.
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Objective: To explore the anti-inflammatory immune mechanism in moxibustion treatment of Crohn.s disease (CD) from the perspective of c-Jun N-terminal kinase (JNK) signaling pathway, through observing the regulatory effect ofmoxibustion on colonic JNK, c-Jun, monocyte chemoattractant protein 1 (MCP-1) and cyclooxygenase 2 (COX2) in CDmodel rats. Method: Male Sprague-Dawley rats of clean grade were randomized into a normal group, a model group, amoxibustion group and a sham moxibustion group. CD model was developed by the mixture of 2, 4, 6 Trinitro-benzene-sulfonic acid (TNBS) and ethanol via enema. Hematoxylin-eosin (HE) staining was used to observe the morphologicalchanges in rat.s colon tissues for pathological scoring; enzyme-linked immunosorbent assay (ELISA) was used to detectthe contents of MCP-1, COX2, JNK, and c-Jun in colon tissues; real-time fluorescence quantitative PCR was adopted toexamine the mRNA expressions of JNK and c-Jun in rat.s colon. Result: Compared with the normal group, the modelgroup showed more significant colonic damage and thus had a higher colonic damage score (P ＜ 0.01), manifested astopical inflammation which involved the submucosa, fissuring ulcers and granuloma; the model group also showedincreased contents of protein MCP-1 and COX2, and elevated contents of JNK protein and mRNA in colon (all P ＜ 0.05), while the change in the content of c-Jun was insignificant (all P＞ 0.05) . Compared with the model group and shammoxibustion group, the colonic damage score was lower in the moxibustion group (P ＜ 0.01, P ＜ 0.05), with improvementin colonic structure and inflammation; the contents of MCP-1 and COX2 in colon tissues declined, so did the proteincontent and mRNA expression of JNK (all P ＜ 0.05), while the change in the content of c-Jun was insignificant (all P＞0.05) . There were no significant differences between the model group and sham moxibustion group comparing all theindexes (all P＞ 0.05) . Conclusion: Moxibustion down-regulates the expressions of JNK protein and mRNA in CD rat.scolon, as well as the contents of MCP-1 and COX2 in colon tissues, which is possibly one significant mechanism formoxibustion to ease intestinal inflammation and promote the repair of colon tissues in CD.
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Based on the data from the -, the bibliometric analysis was applied to analyze and evaluate the literature regarding clinical research of acupuncture for ophthalmopathy published between 1954 to 2016, hoping to objectively reflect the disease spectrum and indication of acupuncture for ophthalmopathy. The results showed that the disease spectrum of acupuncture for ophthalmopathy involved 47 specific diseases in 13 types of diseases. The total number of cases was 176 469, and the number of effective cases was 160 662, and the effective rate was 91.0%. The indication of acupuncture for ophthalmopathy included myopia, blepharoptosis and conjunctivitis. The commonly used indications were strabismus, dry eye and ophthalmoplegia, and the secondary indications were optic atrophy, blepharoptosis, oculomotor paralysis, blepharospasm, amblyopia. The most commonly used acupuncture points for ophthalmopathy were Cuanzhu (BL 2), Jingming (BL 1), Taiyang (EX-HN 5), and the most commonly used auricular points were yan (LO), gan (CO) and shen (CO). As for the methods of acupoint combination, local acupoints were mainly selected, combined with distal acupoint to assist treatment.
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Objective To explore the white matter microstructural change between autism spectrum disorder(ASD) children and the healthy controls and it's correlation with the age and the clinical symptoms.Methods Thirty-three patients with ASD and thirty-three healthy controls (HC) matched for sex-,age-and handedness underwent diffusion tensor imaging (DTI) scans.Use the Autism Diagnostic Observation Schedule(ADOS) and the Neuropsychological Development Inventory for Children Aged 0-6 Years Old (SLAS) to assess the clinical symptoms.Use tract-based spatial statistics (TBSS) based on fiber skeleton to analyze the fractional anisotropy (FA) of the whole brain DTI then to identify the differentiated brain regions.And analyze the correlation with age and clinical symptoms.Results (1) FA value of the body of corpus callosum (BCC) (x =-10,y =11,z =26;P=0.0012),left posterior limb of internal capsule (LPLI) (x =-23,y =-11,z =12;P＜0.01),left anterior corona radiata (LACR) (x =-28,y =28,z =16;P＜ 0.01),lift superior corona radiata(LSCR) (x=-27,y=-1,z=21;P=0.0017) was significantly lower in ASD group.(2) There was a positive correlation between the FA value of LPLI and the LACR,LSCR with age among the ASD group(r=0.436,P=0.012;r=0.443,P=0.010;r=0.475,P=0.005).There was a negative correlation between the FA value of the BCC,LPLI and the LACR,LSCR with the age among the HC children.(3) There was a correlation between the LPLI with the score of A DOS (communication:r=0.406,P=0.025;communication+social behavior:r=0.377,P=0.039;restrictive interests and repetitive behaviors:r=0.375,P=0.041) and SLAS (gross motor:r=-0.409,P=0.024),There was a correlation between the LSCR with the score of the SLAS (gross motor:r=-0.539,P=0.002,adaptive capacity:r=-0.373,P=0.041,mental age:r=-0.388,P=0.034).Conclusion The brain white matter microstructure change of BCC,LPLI,LACR,LSCR may be the pathophysiological basis of ASD.The development trend of brain white matter structure varied with age in ASD children is different from that of normal children.Brain white matter microstructure of the LPLI,LSCR is correlation with ASD symptoms.
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Objective@#To identify the prevalence of sleep problems in children with autism spectrum disorder (ASD) and to explore the association with the main melatonin metabolite, 6-sulfatoxymelatonin (6-SM).@*Method@#This was a prospective case-control study. Children with ASD were recruited from Child Development and Behavioral Research Center (CDBRC) of the Harbin Medical University and Harbin Special Education School from October 2015 to April 2017 (ASD group) . Healthy controls were selected from five kindergartens and one primary school in Harbin by the stratified cluster random sampling (control group) . The Children's Sleep Habits Questionnaire (CSHQ) was used to investigate the sleep problems of the two groups. The patients were matched in a 1∶1 ratio for the age and sex, and the urine samples of case-control pairs were collected in the morning. The level of 6-SM was measured by the enzyme linked immunosorbent assay (ELISA). The student's t test was used for comparison between the ASD group and control group, and the Pearson correlation analysis was used to determine the correlation difference.@*Result@#A total of 212 ASD children (mean (±SD) age was (6.0±2.7) years, and 181 patients (85.4%) were male), and a total of 334 healthy children(mean (±SD) age was (5.9±2.6) years, and 272 patients (81.4%) were male) were recruited. Among them, 101 matched case-control pairs completed the collection of urine samples. According to the statistical analysis, the scores of total CSHQ, bedtime resistance, sleep onset delay, sleep duration, night waking, parasomnia, sleep disordered breathing and daytime sleepiness in children with ASD were significantly higher than those in the control group (48.2±6.2 vs. 46.6±5.4, 11.4±2.5 vs. 10.7±2.8, 1.7±0.8 vs. 1.5±0.7, 4.1±1.4 vs. 3.7±1.1, 4.2±1.5 vs. 3.8±1.1, 8.5±1.5 vs. 8.3±1.4, 3.7±1.0 vs. 3.4±0.8, 11.7±2.5 vs. 12.4±2.7, t=3.16, 3.00, 3.23, 2.76, 3.19, 1.99, 3.45,-2.72, P=0.002, 0.003, 0.001, 0.006, 0.002, 0.048, 0.001, 0.007), the level of 6-SM was significantly lower in children with ASD than that of healthy controls ((1.24±0.50) vs. (1.68±0.63)μg/h, t=-5.50, P<0.01), and the total CSHQ score was negatively correlated with the level of 6-SM (r=-0.50, P<0.01).@*Conclusion@#The children with ASD were at high risk for sleep problems, and the melatonin metabolite of ASD group was abnormal compared with that of the control group. Moreover, there was a negative correlation between the severity of sleep problems and the level of 6-SM in ASD children. The results of our study indicate that the abnormal melatonin metabolism may be one of the causes of sleep problems in children with ASD.
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Objective To explore the white matter microstructural change between autism spectrum disorder(ASD) children and the healthy controls and it's correlation with the age and the clinical symptoms.Methods Thirty-three patients with ASD and thirty-three healthy controls (HC) matched for sex-,age-and handedness underwent diffusion tensor imaging (DTI) scans.Use the Autism Diagnostic Observation Schedule(ADOS) and the Neuropsychological Development Inventory for Children Aged 0-6 Years Old (SLAS) to assess the clinical symptoms.Use tract-based spatial statistics (TBSS) based on fiber skeleton to analyze the fractional anisotropy (FA) of the whole brain DTI then to identify the differentiated brain regions.And analyze the correlation with age and clinical symptoms.Results (1) FA value of the body of corpus callosum (BCC) (x =-10,y =11,z =26;P=0.0012),left posterior limb of internal capsule (LPLI) (x =-23,y =-11,z =12;P＜0.01),left anterior corona radiata (LACR) (x =-28,y =28,z =16;P＜ 0.01),lift superior corona radiata(LSCR) (x=-27,y=-1,z=21;P=0.0017) was significantly lower in ASD group.(2) There was a positive correlation between the FA value of LPLI and the LACR,LSCR with age among the ASD group(r=0.436,P=0.012;r=0.443,P=0.010;r=0.475,P=0.005).There was a negative correlation between the FA value of the BCC,LPLI and the LACR,LSCR with the age among the HC children.(3) There was a correlation between the LPLI with the score of A DOS (communication:r=0.406,P=0.025;communication+social behavior:r=0.377,P=0.039;restrictive interests and repetitive behaviors:r=0.375,P=0.041) and SLAS (gross motor:r=-0.409,P=0.024),There was a correlation between the LSCR with the score of the SLAS (gross motor:r=-0.539,P=0.002,adaptive capacity:r=-0.373,P=0.041,mental age:r=-0.388,P=0.034).Conclusion The brain white matter microstructure change of BCC,LPLI,LACR,LSCR may be the pathophysiological basis of ASD.The development trend of brain white matter structure varied with age in ASD children is different from that of normal children.Brain white matter microstructure of the LPLI,LSCR is correlation with ASD symptoms.
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Objective To explore the effect of 1a,25(OH)2 D3 on circadian clock gene expressions in cardiac myocytes.Methods Cultured cardiac myocytes isolated from 7 -day -old Sprague -Dawley(SD)rats were identified by immunofluorescence.The medium including 1a,25 (OH)2 D3 (final concentrations were 0 nmol/L,1 nmol/L, 10 nmol/L,50 nmol/L and 100 nmol/L)were added to primary myocardial cells to culture for 2 h and then total RNA was extracted.Real -time polymerase chain reaction (RT -PCR)was applied to analyze myocardial cells circadian clock gene (Bmal1,Per2,Rev -erba)transcript levels to determine optimum concentration of 1a,25(OH)2 D3 .Then, the primary myocardial cells cultured for 72 h were divided into 3 groups:the control group was of serum -free culture medium;serum shock group was of DMEMcontaining 50%volume fraction of horse serum cultured 2 h;1a,25(OH)2 D3 treatment group receiving 1a,25 (OH)2 D3 at optimal concentration cultured 2 h.The cells were collected at 7 time points (0 h,4 h,8 h,12 h,16 h,20 h,24 h)and then total RNA was extracted.RT -PCR was applied to analyze circa-dian clock gene (Bmal1,Per2,Rev -erba)transcript levels in the myocardial cells.Results In the presence of 50 nmol/L 1 a,25(OH)2 D3 ,the Bmal1 mRNA expression showed the highest level,but the Per2 and Rev -erba mRNA expression levels were minimum.Compared with the control group,both 1a,25 (OH)2 D3 treatment group and serum shock group caused day -cycle rhythmic oscillation in circadian clock genes(Bmal1,Per2,Rev -erba)in the cardiac myocytes.And the expressions pattern of Bmal1 and Per2 genes were in the opposite phase.While Bmal1 gene expres-sion appeared at peak at 12 h,Per2 gene expression appeared in a trough.Expression of Rev -erba gene trend began to rise at 8 h,and the highest expression level appeared at 12 -16 h.Conclusions 1a,25(OH)2 D3 can affect Bmal1, Per2 and Rev -erba mRNA expressions of circadian clock genes in the cardiac myocytes.
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Objective To explore the basic biological characteristics of lncRNA -uc.1 67,and its spatial dis-tribution,temporal expression pattern during the mouse embryonic development.Methods The UCSC genome browser of ENCODE was used to analyze preliminary bioinformatics of lncRNAs.Real -time (RT)-PCR was applied to detect the expression of uc.1 67 and neighboring genes in the embryonic mouse heart in different stages (P7.5,P1 1 .5,P1 4.5, P1 8.5).Dimethyl sulphoxide was used to induce P1 9 cell differentiation into the cardiomyocytes.RT -PCR was applied to detect the expression changes in uc.1 67 and neighboring genes on differential day 0,4,6,8 and 1 0.Results Full -length of human uc.167 was 201 bp,and human uc.167 was located in the genome 5q14.3 (chr5:88179623 -881 79824,GRCh37 /hg1 9).uc.1 67 mainly expressed in the ventricular muscle tissue.The expression of uc.1 67 was gradually decreased in the mouse embryonic heart development process(P7.5:1 .000 ±0.1 00,P1 1 .5:0.71 4 ±0.1 07, P1 4.5:0.393 ±0.043,P1 8.5:0.1 25 ±0.01 3),while the expression of its neighboring Mef2c gene was gradually in-creased(P7.5:1 .081 ±0.1 1 8,P1 1 .5:2.340 ±0.351 ,P1 4.5:3.958 ±0.542,P1 8.5:9.361 ±0.722),which showed an opposite trend.The expression of uc.1 67 during P1 9 cell differentiation into cardiomyocytes showed a an increase at first and then a decreasepattern,and the highest level expression of uc.1 67 was on differential day 4(d0:1 .071 ± 0.1 1 7,d4:4.71 4 ±0.501 ,d6:3.572 ±0.41 4,d8:2.550 ±0.31 4,d1 0:0.786 ±0.085).The expression of neigh-boring gene Mef2c was in an opposite trend(d0:1 .01 2 ±0.041 ,d4:0.353 ±0.037,d6:2.470 ±0.329,d8:6.706 ± 0.682,d1 0:7.765 ±0.705).Conclusions It is suggested that uc.1 67 may take part in the process of embryonic heart development and may play a role through negatively regulating its neighboring gene Mef2c.
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Objective:To investigate the female vaginal Lactobacillus crispatus biofilm by using confocal laser scanning microscopy (CLSM),thus revealing the formation of biofilm. Methods:The cover slide biofilm culture approach in vitro was employed for induction of the vaginal Lactobacillus crispatus biofilm formation. Following the culture for 2, 4, 8, 12, 16, 20, 24, 48, 72, 96 and 120 hours, the cover slide was removed for subsequent staining with the fluoresce in isothiocyanate-conjugated concanavalin A ( FITC-ConA) and propidium ( PI) . This was followed by determination of the formation and characteris-tics of the vaginal Lactobacillus crispatus biofilm by using CLSM. Results:The CLSM images of biofilm formation at different time points were captured, suggesting that the vaginal Lactobacillus crispatus adhe-sion occurred at h 4, which was in reversible attachment, then more and more Lactobacillus crispatus ag-gregated at h 8 to h 20, which was in irreversible attachment. Lactobacillus crispatus clustered at h 20, with early development of biofilm architecture. Then the biofilm with extracellular matrix around the bacte-ria was set up at h 24,with gradual matureation at h 24 to h 48. The biofilm dispersed at h 72. The bio-film density of cultivating for 20 hours was 42 . 7 × 10 -3 ± 6 . 8 × 10 -3 , and for 24 hours increased to 102. 5 × 10 -3 ± 23. 1 × 10 -3 , suggesting a significant difference, P<0. 05. This meant that mature bio-film was formed at h 24 . Conclusion:The vaginal Lactobacillus crispatus is able to form typical biofilm with distinct developmental phases and architecture characteristics. Mature biofilm is formed at h 24 to h 48, then the biofilm begins to disperse.
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Phenolic acids of rhizosphere soil of Panax notoginseng were identified and the contents were determined. HPLC-MS and HPLC were used. Compared with the literature and standard reference, identification and content de-termination were given on phenolic acids of rhizosphere soil of Panax notoginseng in Wenshan, Yunnan province. The results showed that six types of phenolic acids were detected from the extract of rhizosphere soil of Panax notogin-seng, which were p-hydroxybenzoic acid, vanillic acid, syringic acid, p-coumaric acid, ferulic acid and benzoic acid. The content of p-coumaric acid showed the highest concentration of 24.01 μg·g-1, while syringic acid had the lowest concentration of 1.26 μg·g-1. The sequence of content in the rhizosphere soil of Panax notoginseng from top to bot-tom was p-coumaric acid, vanillic acid, benzoic acid, p-hydroxybenzoic acid, ferulic acid and syringic acid. It was concluded that the rhizosphere soil of Panax notoginseng contained six types of phenolic acids, which were p-hy-droxybenzoic acid, vanillic acid, syringic acid, p-coumaric acid, ferulic acid and benzoic acid.
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Objective To explore the EEG characteristics and the correlation between EEG characteristics and visual attention function in attention deficit/hyperactivity disorder(ADHD).Methods 1:1 case-control study wag applied(37 ADHD children were compared with 37 healthy control groups).Participants aged from 6 to 14 years were involved in this study.All children were tested EEG characteristics and visual function,including the frequency,amplitude,relative power and counting missing features test.And the correlation was analyzed between relative power and visual function.Results The θ amplitude((20.48±14.99μV)in ADHD wag significantly higher than that in the control group((12.37±8.06)μV),(P<0.05);the β frequency((16.63±1.72)Hz) in ADHD was significantly lower than that in the control group((16.63±1.72)Hz,P<0.05);the relative power of β in ADHD(5.24±1.24)was significantly lower than that in the control group(6.30±1.19),(P<0.05);the θ/β ratio in ADHD(4.22±1.26)was significantly higher than that in the control group(3.41±0.52)(P<0.05);the double eyes'counting missing features mark(56.76±19.16),(49.73±23.39) in ADHD were significantly lower than that in the control group(72.43 ±17.23),(71.35±16.69).There wag significant negative correlation between the θ relative power and double eyes'counting missing features(r=-0.448 and-0.361);the θ/β ratio had significantly negative correlation with the fight eye's counting missing features(r=-0.352).Conclusion Compare to the normal control group,the ADHD group shows significant difference in EEG characteristics and visual attention function.The change of EEG power characteristics hag a significant affect on the allocation of attention.
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Objective To find out the brain function characters of visual information integration and visual working memory with attention deficit hyperactivity disorder (ADHD) children. Methods 1∶ 1 case-control study was used on the study. 45 ADHD children who met DSM-IV criteria were recruited as case group,45 normal children from primary school were chosen as control group. Two groups children received the test of contour-integration,positional noise, temporal order memory, pattern memory. Results The ADHD double eyes' contour integration ( ( 1.62 ± 0. 81 ), ( 1.69 ± 0.87 ) ) were significantly lower than the control group' ( (2.02 ± 1.10), ( 1.98 ±0.81 )). There was no significant difference of double eyes' positional noise between case group( (1.98 ±0.89 ), ( 2.20 ± 1.10 ) ) and the control group ( ( 2.20 ± 0. 97 ), ( 2.30 ± 0. 83 ) ). The temporal order memory,pattern memory ( ( 1.89 ± 1.30), ( 1.18 ± 0.44) ) showed significantly lower in case group(P＜ 0.05 ) than that in control group ( ( 2.98 ± 1.25 ), ( 1. 44 ± 0. 66) ). Conclusion Results indicate that children with ADHD have deficiency in visual perception and the ability of visual information integration, and have significantly deficiency in visual working memory and executive-function.
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Objective To investigate the intakes of dietary nutrients and the growth and development status among children with autism,to propose scientific basis for developing further interventions.Methods Dietary intakes of nutrients were obtained with the method of 24-hour dietary review for 3 days.Meanwhile,the height and weight were detected among the subjects;Z-score was also adopted to evaluate nutritional status.Results 1.About 31.5% of the 111 cases with autism were overweight or obesity and 8.1% of the children were acute or chronic malnutrition.2.The intakes of 11 nutrients were insufficient,especially VA,VC,VB6,folate,calcium and zinc,had a serious shortage that less than 60% of the recommended intakes.3.The crowd was widespread lack of nutrients,39.6% of the cases with nutritional deficiency in varying degrees,the incidences of calcium and zinc deficiency were reach up to 88%.Conclusions The nutritional deficiency and overnutrition were simultaneous among the children with autism,their dietary nutritional supplement were generally inadequate.More sufficient measures and rational diet are necessary to improve the nutritional status for the autistic children.
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Objective:To explore auditory event-related P300 in children with behavior problems. Methods: 40 children with behavior problems were screened out from a ample of pupils by CBCL and CRT-C 2. The control group was selected from the others matched by age and gender, the rate of case/control was 1:2. The study and control group were assessed by auditory event-related P300 elicited by pure tone stimuli using the oddball paradigm.Results:(1) There was no significant difference in P300 between study and control groups; (2) The P300 latency of mixed problem group were significantly longer than those of controls. (3) The P300 amplitude were significantly negatively correlated with the CBCL score.Conclusion:It is suggested cognitive function deficit of severe behavior problem children.
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Objective: To explore psychomotor ability of children wit h behavior problems Method: 133 children with behavior problems were screened out from a sample of 1225 pupils by tests with CBCL and CRT-C2 T he control group was selected from the other pupils matched by age and sex, the rate of case/control was 1:2 Jinyi Psychomotor test Battery (JPB) was applied to both groups Result: There were 93 valid pairs in all The study group was more impaired in selecting reaction time, digit symbol, trail ma king and JPB total score They had also larger standard deviation of selecting reaction time and higher rate of JPB abnormality than control Trail making was a protective factor for internalizing and externalizing problems Standard dev iation of selecting reaction time was a risk factor of externalizing problems Selecting reaction time, cancellation digit, digit symbol and JPB total score we re protective factors of mixed problems and JPB abnormality was the risk factor The rate of JPB abnormality of mixed problem group was significantly higher t han that of single problem groups There was significant negative correlation b etween CBCL total score and,digit symbol trail making T score and JPB total T sc ore Conclusion: Children with behavior problems perform poor i n psychomotor test, which suggests they have brain dysfunction, especially those with mixed problems