Adaptation, Psychological ; Adolescent ; COVID-19 ; Child ; China ; Cross-Sectional Studies ; Female ; Humans ; Male ; SARS-CoV-2

BACKGROUND:As a new self-synthetized medical orthopedic fixation material, micron traditional Chinese medicine functional lining material can promote the secretion of alkaline phosphatase and cal us formation, decrease serum calcium level, as wel as increase serum phosphorus level and calcium-phosphorus product. OBJECTIVE:To further verify the therapeutic effect of micron traditional Chinese medicine functional lining material on fracture healing. METHODS:Twenty-four New Zealand rabbits were selected to prepare models of right radial fracture, and then were randomly al ocated into four groups:rabbits in micron group were treated with micron traditional Chinese medicine functional lining material (micron Panax notoginseng powder mixed with active ingredients of Daval ia divaricata and Carthamus tinctoriousplus) plus plaster external fixation;those in traditional Chinese medicine control group treated with ordinary Chinese medicine functional material plus plaster external fixation;those in lining material control group treated with ordinary lining material (sterile degreasing cotton) plus plaster external fixation;those in model control group received no treatment. The whole blood viscosity at high/middle/low shear rates and plasma viscosity were detected at 2, 4 and 6 weeks before and after modeling. Additional y, rabbits in each group were kil ed at 6 weeks after modeling, and radial samples were removed for histological observation. RESULTS AND CONCLUSION:The whole blood viscosity at high/middle/low shear rates and plasma viscosity in the micron group were al lower than those in the other three groups in the same period, and had significant differences from those in the model control group at 4 and 6 weeks after modeling (P<0.05 or 0.01). A large number of osteoblasts could be found, woven bone began to form and the bone marrow cavity was recanalized in the micron group;in the traditional Chinese medicine group, woven bone, chondrocytes and endochondral ossification coexisted and there was a connection between cal uses inside and outside of the broken end, but the bone marrow cavity was not recanalized. In contrast, neither connection between cal uses inside and outside of the broken end, nor recanalized bone marrow cavity appeared in the lining material and model control groups. In conclusion, micron traditional Chinese medicine functional lining material can promote fracture healing by improving microcirculation and accelerating osteoblast proliferation.

Objective To explore sex differences in cognitive and behavioral characteristics in children with autism spectrum disorder (ASD) in different age.Methods The study involved 621 children(503 boys,118 girls) diagnosed with ASD from June 2013 to June 2015.Using raw scores to examine cognitive and behavioral characteristics in children with ASD based on the Psycho-Educational Profile-3rd Edition (PEP-3).The subjects were divided into two groups according age:＜4Y group and ≥ 4Y group.The sex differences of cognitive and behavioral characteristics were analyzed in different age groups.Results No sex differences were found in characteristic motor behaviors (CMB) and characteristic verbal behaviors (CVB) raw scores in ＜4Y group(P＞0.05),while girls with ASD had lower raw scores on CMB and CVB raw scores in ＞4Y group((21.56±7.33) vs (24.09±4.80),(9.79±7.05) vs (13.27±5.75) ; P＜0.05)).Girls with ASD had lower raw scores on cognitive verbal/preverbal (CVP),CMB and CVB in ～ 4Y,～5Y,and ～6Y group (P＜0.05).However,there was no sex difference on CVP,CMB and CVB in ～ 3Y and ～ 7Y group (P＞0.05).Conclusions Characteristic verbal and motor behaviors may not be obvious in girls with ASD in early childhood,which may increase the difficulties of early clinical identification.The development of cognitive ability in girls with ASD is far behind that in boys in the crucial 3-5 years old,as well as social reciprocity and characteristic behaviors.It suggests that the behavior characteristics are closely related to cognitive development.

Objective To investigate the autistic symptoms or autistic trait in the children with attention deficit hyperactivity disorder(ADHD) for facilitating the development of appropriate interventions.Methods Sixty-two 6-12-year-old high-functioned autism spectrum disorder (ASD),ADHD and typically developing (TD) children were assessed respectively using Chinese-version social responsiveness scale (SRS),and ADHD core symptoms were assessed in the ADHD children at the same time.Results ASD group＞ADHD group＞ TD group on the SRS total raw score and the five dimensions scores as well(P＜0.01).ASD,ADHD and TD group scored respectively 92.43±19.17,65.66±19.86 and 38.40±10.68 on the SRS total scale.The SRS total raw score of ADHD group exceeded the TD group for 2.55 standard deviant (SD) and with social communication (2.00 SD) and autistic mannerism (2.71 SD) deviating the most.22.58％ (14 out of 62) children with ADHD scored above the threshold on the SRS total raw score which was significantly higher than that in the TD group(P＜0.01).There were nonsignificant differences in the ADHD core symptoms between ADHD± children (with the SRS total raw score ≥85)and ADHD-children(with the SRS total raw score＜85) (P＞0.01).Conclusion Children with ADHD appear more ASD symptoms than the TD children and a considerable proportion of them reach the SRS diagnostic cut-off point.

Objective To compare the intelligence quotient (IQ) between children with Asperger syndrome (AS) and children with attention deficit hyperactivity disorder (ADHD) in order to provide reliable evidence for differential diagnosis.Methods The intelligence of 141 children with AS,154 children with ADHD and 102 normal control (NC) children aged 6-13 years old examined by the China-Wechsler Intelligence Scale for Children was analyzed,and the diagnoses of AS and ADHD was made according to the Fourth edition of the Diagnostic and Statistical Manual of Mental Disorder.Results The proportions of children at low level of IQ (borderline and mental retardation range) in children with AS and with ADHD group were both significantly higher than those of NC group.The proportions of children at top level of IQ (superior and very superior range) in ADHD group were significantly lower than those of AS and NC groups.In the AS group,higher proportions of verbal IQ (VIQ) at top level and performance IQ (PIQ) at low level were found.The average VIQ,PIQ and full IQ (FIQ) of the AS,ADHD and NC groups were (102.55 ± 17.27,91.31 ± 16.01,97.10 ± 15.88),(95.39 ±13.49,94.16 ± 12.92,94.40 ± 12.78) and (104.06 ± 13.66,103.05 ±11.80,103.91 ± 12.92),respectively.The VIQ,PIQ and FIQ in ADHD group were lower than those in NC group significantly(P ＜ 0.01);compared with NC group,the PIQ and FIQ in AS group were significantly lower (P ＜ 0.01),while the VIQ was not significantly different(P ＞0.05).The AS and ADHD group scored both lower than the NC groupin the subtests ofcomprehension, coding, picture completion andpicture arrangement (P ＜ 0.01).The difference values between VIQ and PIQ in the AS,ADHD and TD group were(11.23 ± 17.29),(1.23 ± 13.10) and (1.00 ± 10.91),respectively,among which only the value in AS group was statistically significant (P ＜ 0.01) but not in ADHD and NC group(P ＞0.05).The proportion of children having a VIQ-PIQ difference value more than 15 in AS group was 54.60％ (77/141 cases),which was significantly higher than that in ADHD [22.07％ (34/154 cases)] and NC groups [13.72％ (14/102 cases)] (P ＜ 0.01),while the latter 2 value had no statistical difference (P ＞ 0.05).The differences among scores on the three Kaufman factors were significant in AS group (P ＜ 0.01) but not in ADHD and NC groups(P ＞ 0.05).Conclusions Compared with ADHD and normal control children,there are some unique intelligence profiles in children with AS,which show VIQ and PIQ separation,imbalance intelligence structure as well as strengths and weaknesses coexisting.Furthermore,children with ADHD and AS children share common features in some subtests scores.

Objective To investigate the effects of aloperine (ALO) on a model of dextran sulphate sodium (DSS)-induced chronic colitis in C57BL/6 mice.Methods Repeated colitis was induced by administration of four cycles of 4％ DSS.The severity of colitis was assessed on the basis of clinical signs,ratio of colon weight and colon length,and histological grading scores.Moreover,secretory immunoglobulin A (S-IgA) and plasma haptoglobin (HP) were analyzed by enzyme-linked immunosorbent assay,and the changes of mRNA expression of ICAM-1and MIF gene in colorectal tissue were detected by quantitative reverse transcriptase real-time polymerase chain reaction using SYBR Green Ⅰ.Results ALO administration significantly attenuated the colon damage,caused substantial reductions of the rise in HP,and maintained the level of cecum S-IgA.ALO inhibited the ICAM-1mRNA expression and had no effect on MIF mRNA expression.Conclusion The effect of ALO on DSS-induced chronic colitis in mice is investigated for the first time,which suggests that ALO could be an attractive therapeutic candidate in the treatment of inflammatory bowel disease.

Objective To investigate the changes of the serum sex steroids levels in prepuberal children with autism,and analyze the possible clinical implications.Methods The serum sex steroids,including folliclestimulating hormone(FSH),luteotropic hormone(LH),testosterone(T),estradiol(E2),progesterone(P),dehydroepiandrosterone sulfate(DHEA-S) and androstenedione were measured in 44 autistic children(35 boys and 9girls,47.5 ± 18.9 months) and 44 normal children(35 boys and 9 girls,45.0 ± 18.7 months),using chemiluminescence immunoassay.Results ①The progesterone levels in autism group were significantly lower than control group((＜ 0.48,2.08) nmoL/L vs (＜ 0.48,6.95) nmol/L,Z =-3.564,P ＜ 0.01),but no statistical differences were observed in other sex steroids levels(P＞ 0.05).②The progesterone levels in ＜ 48 months autism group showed no significant differences from ≥48 months autism group (Z =0.150,P ＞ 0.05).There were no statistical differences in progesterone level between the boys and girls of the autism group(Z=1.972,P＞0.05).Conclusion The progesterone levels are lower in autistic children,and they are not associated with the children's age or gender.This study indicates that the progesterone levels are closely associated with autism.

Objective To evaluate the association between two different linear growth patterns with the levels of serum insulin in children bem small for gestational age(SGA).Methods Serum fasting glucose,fasting insulin,and insulin-like growth factor-I(IGF-I)concentrations were determined in 30 catch-up growth(CUG)children bern SGA [CUG-SGA,16 females,14males,(6.62±0.66)year],37 non-catch-up growth(NCUG)children born SGA[NCUG-SGA,15 females,22 males,(5.97±0.56)year],and42 appropriate for gestational age(AGA)children with normal height[AGA,16females,26males,(7.05±0.39)year].Results (1) Basal fasting insulin and homeostasis model assessment for insulin resistance(HOMA-IR)were significantly higher in CUG-SGA group than in NCUG-SGA and AGA group(P<0.01 or P<0.05).But there was no difference in fasting insulin between NCUG-SGA group and AGA group.IGF-I levels in CUG-SGA were significantly higher than in NCUG-SGA group[(212.61±17.81 vs 137.40±14.66)ng/ml,P=0.001],but showed no difference from AGA group(P=0.095).(2)In the SGA group,HOMA-IR showed positive correlation with age,△height SDS,and current body mass index.Fasting insulin showed positive correlation with △height SDS(r=0.500,P=0.002)in≤6 year group as well as with △weight SDS(r=0.496,P=0.030)in>6 year group.Conclusions Insulin as a growth factor may participate in postnatal catch-up growth accompanied with increased insulin resistance in SGA children.

OBJECTIVETo investigate the effects of total alkaloid of Sophora alopecuroides (TASA) on expression of serum IL-1beta and IL-4 in mice with DSS-induced acute ulcerative colitis.

METHODC57BL/C mice were randomly divided into six groups: normal group, model group, SASP group, low, middle and high dosage TASA group. Acute ulcerative colitis was induced by administrating 5% dextran sulfate sodium (DSS) solution as drinking water freely for 8 days. Mice were given drug by stomach at the same time and sacrificed after 8 days. The general morphological and histopathological changes were observed during the experiments. Daily disease activity index (DAI) was assessed. The serum levels of IL-1beta and IL-4 were detected by ELISA.

RESULTIn UC mice, the expression of serum IL-1beta was significantly increased whereas IL-4 was decreased when compared with the normal group (P < 0.01). In all treatment groups, TASA could reduce the expression of IL-1beta (P < 0. 01) , increase the level of IL-4 and alleviate the symptom of UC and decrease the DAI.

CONCLUSIONTASA can effectively attenuate DSS-induced acute ulcerative colitis through the decreasing the over-expression of pro-inflammatory cytokine levels.

Alkaloids ; administration & dosage ; Animals ; Colitis, Ulcerative ; blood ; drug therapy ; genetics ; immunology ; Disease Models, Animal ; Gene Expression ; drug effects ; Humans ; Interleukin-1beta ; blood ; genetics ; immunology ; Interleukin-4 ; blood ; genetics ; immunology ; Male ; Mice ; Mice, Inbred C57BL ; Plant Extracts ; administration & dosage ; Random Allocation ; Sophora ; chemistry

BACKGROUND: External preparations treatment of fractures in traditional Chinese medidne are mostly ordinary hard-paste, cream, ointment, which lack of modernized traditional Chinese medicine transdermal delivery systems, and the treatment has poor drug absorption and simple process. The treating procedure needs to be used repeatedly, which would affect fracture external fixation and lead to unsatisfactory therapeutic effect. In this Paler, the extemal treatment of traditional Chinese medidna was combined with advanced micro-nano-technology to develop a new medical complex functional materials-micron traditional Chinese medicine functional lining material, which is an organic combination of diaplasis, fixation and local drug remedy, which provides a better treatment for fractures. OBJECTIVE: To explore the effect of micron tradifional Chinese medicine functional lining material on the healing of fracture in rabbits, METHODS: After model preparation, rabbits were randomly divided into 4 groups: rabbits in the micron group were treated with micron traditional Chinese medicine functional lining material plus plaster external fixation; those in the traditional Chinese medidna control group were treated with ordinary Chinese medicine functional material plus plaster extemal fixation; those in the lining material control group were treated with ordinary lining material added plaster extemal fixation; those in the natural healing control group had no special treatments. The effect of fracture healing was evaluated by X-ray at 2, 4 and 6 weeks after modeling. The serum concentration of alkaline phosphatase, calcium and phosphorus was detected respectivaly before modeling and at 2, 4 and 6 weeks after modeling. RESULTS AND CONCLISION: ①X-rap examination:After 6 weeks the external was almost copletly absorbed and medullary cavity was completely recanalizad in the micron group, while fracture line disappeared and the external callus began to be absorbed and medullary cavity was not recanalized in the traditional Chinese medidne control group. Additionally, there were case of non-union stump hardening in natural healing group. ②Serum biochemistry:The activity of alkaline phosphatase reached a peak after 2 weeks in micron group, which was 2 weeks ahead of time compared with that in traditional Chinese medicine control group. And the peak concentration of alkaline phosphatase in micron group was higher than other groups. After 4 weeks serum calcium concentration started to fall significantly and phosphorus concentration started to rise significantly in micron group, as was statistically significant compared with other groups. After 6 weeks serum calcium concentration in micron group had fallen to normal level, while that in other groups was higher than normal. And phosphorus concentration in micron group increased significantly, which was statistically significant compared with natural healing group. The results demonstrated that micron feature traditional Chinese medicine lining matedat can enhance the activity of alkaline phosphatase, decrease the serum concentration of calcium and increase the serum concentration of phosphorus and the product of calcium and phosphorus, therefore, promote the healing of fracture, It shows that micron traditional Chinese medicine functional lining matedal plays a stronger effect on promoting the healing of fracture than that of ordinary Chinese medicine functional lining material.