BackgroundDiabetic retinopathy (DR) is the result of the cytokine network disorders,the imbalance of angiogenic factor and vascular inhibitory factor is the start factor.ObjectiveTo analyze the levels of CXC chemotatic factors of type 2 diabetes mellitus patients,evaluate the clinical application value of them in different clinical types of DR using receiver operating characteristic (ROC)analysis and to approach the new way of individualized treatment.Methods This was a prospective research.The gold standard was ophthalmolscope and fundus fluorescein angiography.The levels of CXC chemotatic factors and multiplicaiton factors were measured in 96 cases with type 2 diabetes mellitus (66 cases with retinopathy and 30 cases without retinopathy as control).The assessment tasks were performed for these index and courses of DR with ROC curve.Results The expression of age,course of disease has significant difference in different courses of DR ( F =8.507,P =0.001 ; F =28.143,P =0.000).Compared with the control group,the expression of growth-related oncogene-α ( GROα ) ( t =- 2.172,P =0.035,AUC =0.625 ),whole blood viscosity 200 ( t =- 3.724,P =0.001,AUC =0.904 ) and neutrophilic leukocyte (t=-2.562,P =0.013,AUC =0.577 ) has significant difference in the group of mild NPDR.Compared with the control group,the expression of interferon-γ-inducible protein 10 ( IP-10 ) ( t =-3.591,P =0.001,AUC =0.592 ),platelet derivation growth factor-BB ( PDGF-BB ) ( t =- 3.233,P =0.003,AUC =0.735 ),vascular endothelial growth factor(VEGF) ( t =- 3.617,P =0.001,AUC =0.776 ),C peptide ( t =- 3.366,P =0.002,AUC =0.962 ),leukocyte ( t=-3.201,P =0.003,AUC =0.852) and neutrophilic leukocyte(t =-4.201,P=0.000,AUC =0.852) has significant difference in the group of moderate and severe NPDR.ConclusionsCXC chemotatic factors may act as reactivator in the pathogenesis of DR,GROα and IP-10 may be useful for clinical monitoring of the severity of DR,and evaluating the imbalance state of chemotatic factors maybe a new approach to clinical monitoring and prognosis of DR.

OBJECTIVETo investigate the toxic effects of decabromodiphenyl ethane (DBDPE), used as an alternative to decabromodiphenyl ether in vitro.

METHODSHepG2 cells were cultured in the presence of DBDPE at various concentrations (3.125-100.0 mg/L) for 24, 48, and 72 h respectively and the toxic effect of DBDPE was studied.

RESULTSAs evaluated by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide and lactate dehydrogenase assays and nuclear morphological changes, DBDPE inhibited HepG2 viability in a time- and dose-dependent manner within a range of 12.5 mg/L to 100 mg/L and for 48 h and 72 h. Induction of apoptosis was detected at 12.5-100 mg/L at 48 h and 72 h by propidium iodide staining, accompanied with overproduction of reactive oxygen species (ROS). Furthermore, N-acetyl-L-cysteine, a widely used ROS scavenger, significantly reduced DBDPE-induced ROS levels and increased HepG2 cells viability.

CONCLUSIONDBDPE has cytotoxic and anti-proliferation effect and can induce apoptosis in which ROS plays an important role.

Apoptosis ; drug effects ; Bromobenzenes ; toxicity ; Cell Survival ; drug effects ; Dose-Response Relationship, Drug ; Environmental Pollutants ; toxicity ; Hep G2 Cells ; Humans ; Reactive Oxygen Species ; Time Factors

This study was aimed to explore the effects of insulin on expression of insulin receptor (IR) and insulin-like growth factor-I receptor (IGF-IR) in Reh cells and promoting effect on proliferation of Reh cells. The proliferation of Reh cells were evaluated by CCK-8 assay. The expression levels of IR and IGF-IR mRNA in Reh cells at different times were detected by real-time quantitative polymerase chain reaction. The results showed that insulin promoted the proliferation of Reh cells in dose- and time-dependent manners. Compared with the control group, insulin promoted the proliferation of Reh cells obviously (P < 0.05). When Reh cells were treated with insulin 10(-9) mol/L for 24, 48 and 72 h, the relative quantity of IR expression (2(-ΔCt1)/2(-ΔCt2)) was 2.2520 ± 0.7431, 1.9956 ± 0.9692 and 3.9766 ± 1.3189, respectively, the relative quantity of IGF-IR expression was 1.0803 ± 0.2238, 1.6026 ± 0.6158 and 3.1013 ± 0.1008, respectively, compared with the control group. The expression levels of IR and IGF-IR mRNA in Reh cells treated with insulin were obviously increased compared with the control group. It is concluded that insulin promotes the proliferation of Reh cells. The high expression levels of IR and IGF-IR may closely related with the growth of leukemia cells.
Cell Line, Tumor ; Cell Proliferation ; drug effects ; Humans ; Insulin ; pharmacology ; Leukemia, Lymphoid ; metabolism ; pathology ; Receptor, IGF Type 1 ; metabolism ; Receptor, Insulin ; metabolism

Objective To analyze the unmet needs of services and support, and design structured, standardrized and individualized service and support plans for people with intellectual disability using ICF framework.Methods In respective of intellectual function and adaptive behavior, a structured, standardrized and individualized service and support plan had been constructed according to process of individualized plan using ICF.Results Based on ICF model of functioning and disability, the structured and standardized service and support plan had been constructed, including functional diagnosis and service needs reporting, and individualized services protocols.Conclusion With the analysis of functioning and reporting of unmet needs of service using ICF, the structured, standardrised and individualized service and support plan can be developed to promote the total rehabilitation for people with intellectual disabilities.

OBJECTIVETo observe the direct effects of fenvalerate (Fen) on sperm motility in SD rats.

METHODSSperm were isolated from caudal epididymides of healthy adult male rats with the diffusion method. The motility parameters of the isolated sperm, such as VCL, VSL, VAP, BCF, STR and LIN, were monitored by computer-assisted sperm analysis (CASA) system after 1, 2 and 4 h Fen-exposure in vitro at concentrations of 0, 1, 4, 16 and 64 micromol/L respectively.

RESULTSAfter 1 and 2 h Fen-exposure, VSL, BCF, STR and LIN decreased significantly at 64 micromol/L compared with the control group. After 4 h Fen-exposure, the motility parameters VCL, VSL, BCF, STR and LIN dropped progressively at 64 micromol/L, and VCL declined markedly at 16 micromol/L. However, only VCL and STR showed alterations in a time-response manner.

CONCLUSIONFen may affect the caudal epididymal sperm and produce a direct toxic effect on sperm motility in SD rats.

Animals ; Dose-Response Relationship, Drug ; Insecticides ; toxicity ; Male ; Nitriles ; toxicity ; Pyrethrins ; toxicity ; Rats ; Rats, Sprague-Dawley ; Sperm Count ; Sperm Motility ; drug effects

OBJECTIVETo observe clinical therapeutic effect of scalp-acupuncture combined with exercise therapy on spastic cerebral palsy.

METHODSEighty children of spastic cerebral palsy were randomly divided into a scalp-acupuncture plus exercise therapy group and a exercise therapy group, 40 cases in each group. The scalp-acupuncture plus exercise therapy group were treated with scalp-acupuncture and exercise therapy, with Yundongqu (the motor area), Pinghengqu (the balance area), Ganjuequ (the sensory area), etc. selected for scalp-acupuncture, and puncture at main points Baihui (GV 20) and Sishencong (EX-HN 1) and exercise therapy. The exercise therapy group were treated by exercise therapy. Changes of GMFM scores and WeeFIM scores before and after treatment were compared.

RESULTSThere were significant differences in GMFM scores and WeeFIM scores before and treatment in the scalp-acupuncture plus exercise therapy group (P < 0.001) and in the exercise therapy group (P < 0.05), the former being better than the later (P < 0.05); the total effective rate was 92.5% in the scalp-acupuncture plus exercise therapy group and 72.5% in the exercise therapy group with a significant difference between the two groups (P < 0.05), the former being significantly higher than the later.

CONCLUSIONThe scalp-acupuncture combined with exercise therapy can improve motor function of limits of children with spastic cerebral palsy, with therapeutic effect better than that of simple exercise therapy.

Acupuncture Therapy ; Cerebral Palsy ; physiopathology ; rehabilitation ; therapy ; Child ; Child, Preschool ; Combined Modality Therapy ; Exercise Therapy ; Female ; Humans ; Male ; Meridians ; Motor Activity

OBJECTIVETo study the incidences of comorbidities and behavioral problems in children with functional articulation disorders.

METHODSOne hundred and twelve children with functional articulation disorders (aged 4-11 years) were enrolled. Their comorbidities were identified based on clinical investigations and the DSM-IV diagnosis criteria of attention deficit hyperactivity disorder (ADHD), stuttering, tic disorders and enuresis. Behavioral problems were evaluated by the Conners Parent Symptom Questionnaire and the Child Behavior Checklist.

RESULTSSixty-nine patients (61.6%) had one or more comorbidities. The incidence of comorbidity in children with middle-severe functional articulation disorders was higher than in those with mild disorders. The most common comorbidity was language impairment (30.4%), followed by stuttering (16.1%), enuresis (13.4%), and tic disorders (6.3%). In school age children, ADHD (47.5%) was the most common comorbidity. The incidence of behavioral problems was 40.2% by the Child Behavior Checklist and 57.1% by the Parent Symptom Questionnaire.

CONCLUSIONSThe children with functional articulation disorders have high incidence of comorbidity and many behavioral problems.

Articulation Disorders ; psychology ; Attention Deficit Disorder with Hyperactivity ; epidemiology ; Child ; Child Behavior Disorders ; epidemiology ; Child, Preschool ; Comorbidity ; Enuresis ; epidemiology ; Female ; Humans ; Incidence ; Language Disorders ; epidemiology ; Male

This study was aimed to investigate the therapeutic efficacy of rabbit anti-thymocyte globulin (r-ATG) combined with cyclosporine A (CsA) and to analyse the efficacy-related factors in children with aplastic anemia (AA). Twenty five AA children treated with r-ATG [3.5 mg/(kg·d)×5 days] combined with CsA were analyzed retrospectively. The lymphocyte subgroups, CD4(+)/CD8 ratio and expression of CD55, CD59 on surface of neutrophils and erythrocytes in peripheral blood were detected by direct immunofluorescence method and flow cytometry; the responsive time, effective rate, adverse effects and infections after immunosuppressive therapy (IST) were analyzed; the distribution of T-lymphocyte subgroups in IST-effective and IST-uneffective groups was compared, and therapeutic efficacy-related factors were evaluated. The results showed that the response to treatments was found in 21 out of 25 cases, the total responsive rate was 84.0%; the response time was 3 - 6 months, average of 4 months; the effective rates in month 3, 6, 9, 12 after treatment were 56.0%, 72.0%, 80.0% and 84.0% respectively. The AA children with age ≥ 5 years old, course of disease < 6 months and absolute neutrophil value ≥ 1.5 ×10(9)/L on 30 days after IST had good curative effect; the effective rate in AA children with age ≥ 5 years old, course of disease < 6 months, high or reverse ratio of CD4(+)/CD8(+) and absolute neutrophil value ≥ 1.5×10(9)/L after IST was higher than that in AA children with age < 5 years old, course of disease ≥ 6 months, normal ratio of CD4(+)/CD8(+) and absolute neutrophil value after IST < 1.5×10(9)/L (94.4% vs 57.1%, 90.4% vs 50.0%, 94.1% vs 62.5%, 94.1% vs 62.5%) (P < 0.05). The high effective rate was observed in AA children with decrease of CD55 and CD59 expression, but there was no significant difference (P > 0.05) as compared with normal expression of CD55, CD59. It is concluded that the treatment using r-ATG (3.5 mg/kg·d × 5 d) combined with CsA is a safe and effective for children with AA. Age, course of disease and absolute neutrophil value on 30 days after IST are the main factors affecting curative affect.
Adolescent ; Anemia, Aplastic ; drug therapy ; Antilymphocyte Serum ; administration & dosage ; therapeutic use ; Child ; Child, Preschool ; Cyclosporine ; administration & dosage ; therapeutic use ; Drug Therapy, Combination ; Female ; Humans ; Lymphocyte Count ; Lymphocyte Subsets ; Male ; Retrospective Studies ; Treatment Outcome

OBJECTIVETo investigate the roles of surviving and caspase-3 in the development of oral cancer.

METHODSArchival tissue sections of 17 oral squamous cell carcinoma (OSCC), 28 oral leukoplakia with dysplasia, 10 normal oral mucosa were obtained from Capital Medical University School of Stomatology for immunohistochemical staining of markers of survivin and caspase-3. The cell apoptosis was detected with terminal deoxynucleotidyl transferase-mediated nucleotide shift enzyme (TdT) mediated d-UTP end labeling (TUNEL). Positively stained cells were counted and analyzed statistically to determine potential relationship between survivin, caspase-3 and cell apoptosis.

RESULTSThe expression of survivin was faint or negative in normal epithelial cells. The average positive rate of survivin was (1.05 ± 1.21)% in control group and (21.89 ± 10.45)% in OSCC. Caspase-3 was expressed in all the normal mucosa,but it obviously down-regulated in dysplasia and OSCC. The apoptosis index (AI) decreased from (0.89 ± 0.46)% in normal mucosa to (0.21 ± 0.12)% in OSCC.

CONCLUSIONSBoth survivin and caspase-3 are associated with carcinogenesis of the oral mucosa. Survivin may restrain cell apoptosis by inhibiting caspase-3.

Apoptosis ; Carcinoma, Squamous Cell ; enzymology ; metabolism ; pathology ; Caspase 3 ; metabolism ; Humans ; Inhibitor of Apoptosis Proteins ; metabolism ; Leukoplakia, Oral ; enzymology ; metabolism ; pathology ; Mouth Mucosa ; enzymology ; metabolism ; Mouth Neoplasms ; enzymology ; metabolism ; pathology ; Precancerous Conditions ; enzymology ; metabolism ; pathology

BACKGROUND: An acceleration or deceleration of the heart rate (HR), which reflects autonomic effects, is observed before the onset of paroxysmal atrial fibrillation (PAF). The purpose of this study was to assess the discrepancy in the autonomic interactions before the onset of PAF for different patterns of change in the HR. MATERIALS AND METHODS: From 105 Holter tapes with the PAF recorded, 55 episodes (42 patients, 34 men, 58+/-12 years) of PAF (>5 min), preceded by a sinus rhythm for more than 1 hour, were selected and submitted to time-domain and frequency-domain HR variability analyses. Fifty-five episodes were divided into 2 groups: group A PAF (n=30) with acceleration of the HR during the last 2 minutes before the PAF and group B (n=25) with deceleration of the HR. RESULTS: A significant linear decrease in the mean R-R interval was observed in group A (924+/-30 to 835+/-28 ms, P=0.001) and an increase from 831+/-32 to 866+/-31 ms in group B PAF episodes (P=0.046). In the frequency-domain analyses, the LF/HF ratio exhibited a progressive linear increase before the PAF in group A (P=0.005). The HF normalized units (HFnu) and natural logarithm-transformed HF (lnHF) values decreased from 30.8+/-4.0 to 16.1+/-1.8 (P=0.003) and 4.49+/-0.25 to 4.07+/-0.22 (P=0.001), respectively. Contrary to the results in group A, a significant increase in the HF components (HFnu and lnHF) (from 22.6+/-3.2 to 30.2+/-4.0, P=0.005, and 4.27+/-0.27 to 4.75 0.33, P=0.001, respectively) and a resultant decrease in the LF/HF ratio were observed in group B PAF episodes. No significant changes were observed in the LF components in either PAF group. CONCLUSION: Autonomic stimuli leading to an acceleration or deceleration of the HR before the onset of AF are due to parasympathetic modulation. Parasympathetic modulation plays a key role in the initiation of PAF
Acceleration ; Atrial Fibrillation* ; Autonomic Agents ; Autonomic Nervous System ; Deceleration ; Heart Rate ; Humans ; Male