0 05) Observation group was much better than control group in decreasing levels of TG and Ch(P

Objective: To explore senior high school students' knowledge, behavior and attitude toward sex and reproductive health issues. Methods: Questionnaire surveys were carried out in 6 high senior schools in Harbin, the questionnaire was provided by YRH (youth reproductive health) Project Team. Results: The after-school life of our sample included reading, watching movies and television, Internet exploring and playing with partners; 30%-40% of the people had never explore sex topic with their parents. Most of the students had appropriate understanding of adolescent knowledge, but they had less knowledge about reproductive health and contraception; About 30% of students had fallen in lover, only 4.3% of students had intercourse with their partners, and they were lack of awareness and ability to protect themselves from unsafe sex. 31.6% of students think that the main sources of knowledge of adolescent health education in schools. Conclusion: Students in senior high school have showed a more positive and stable attitudes toward life. They have some knowledge about YRH but not systematic.

Objective It has been unclear how osteopontin, one of metastasis-associated genes, could be regulated in HepG2 cells. The aim of this study was to investigate the effect of protein kinase B(Akt) on the expression of osteopontin in HepG2 cells, and to explore the relationship between Akt and osteopontin expression. Methods HepG2 cells were transfected with constitutively active Akt and dominant negative Akt by lipofectmine, and transfectants were confirmed using Western blot for Akt. Osteopontin expression was detected by Northern blot and Western blot. Results HepG2 cells were successfully transfected with Akt genes including constitutively active Akt and dominant negative Akt, and overexpression of exozegenes Akt could be detected in HepG2 cells by Western blot. Using Northern blot and Western blot, we found that Akt gene regulated osteopontin expression in RNA level and protein level. In serum-free condition, HepG2 cells constitutively expressed low levels of osteopontin. Transfection of constitutively active Akt increased osteopontin mRNA and protein expression. Transfection of dominant negative Akt decreased osteopontin expression.Conclusions The fact that osteopontin gene expression can be regulated by Akt indicates that osteopontin synthesis can be blocked by inactivation of Akt gene and that metastasis of liver cancer might be inhibited by this intervention.

objective To explore the effect of diabetes management program with the goal of behavior changes on behavior change and metabolic index of patients with type 2 diabetes mellitus.Methods By setting up the diabetes management team,establishing personalized management file,carrying out education program,setting the goal of behavior changes and evaluating goal's trace,One-year management was carried out for 56 cases of type 2 diabetic patients.Patients' behavior changes were evaluated after six months management and one year later the metabolic indexes were contrasted.Results After 6 months management,the rate of goal achievement was 96%,the rate of one year behavior stabilization was 92%,the body mass index (BMI),fasting and postprandial blood glucose,glycosylated hemoglobin (HbAlc) one year later were decreased dramatically.Conclusions There is important significance of diabetes management program with the goal of behavior changes for behavior changes and metabolic indexes control in type 2 diabetic patients.

Objective To investigate the possible mechanism of glomerular injury in diabetes mellitus by determining whether epithelial-mesenchymal transition (EMT) is caused by high glucose in mice podocytes. Methods Using mice glomerular podocyte cell line as an in vitro system, podocytes were incubated with glucose(12.5 mmol/L, 25 mmol/L, 50 mmol/L) and mannitol (50 mmol/L) for 36 hours. Then the cells were collected and expression of alpha-smooth muscle actin(α-SMA), fibronectin (FN), CD2 associated protein (CD2AP) and Wilms' tumor 1 gene (WT-1) was detected by Western blot and indirect immunofluorescence staining. Results Under low glucose (5.6 mmol/L) and mannitol (50 mmol/L) condition, there were high expression of CD2AP and WT-1, and low expression of α-SMA and FN in mice podocytes. After 36 hours treatment with high glucose (12.5 mmol/L), the expression of α-SMA and FN in podocytes was significantly increased, and the expression of α-SMA and FN was further up-regulated with the increase of glucose dosage (25, 50 mmol/L). The indirect immunofluorescence staining revealed the similar result, and the percentage of positive α-SMA cells was also increased compared with low glucose and mannital group (P<0.05). Meanwhile, Western blot showed that high glucose could down-regulate the expressions of CD2AP and WT-1 in a dose-dependent manner. Conclusion EMT may be a potential pathway leading to podocyte dysfunction and glomerular injury under high glucose conditions.

OBJECTIVETo investigate mutations of MECP2 gene in classical sporadic Rett syndrome (RTT) patients in China.

METHODSPolymerase chain reaction, single strand conformation polymorphism, cloning and direct sequencing were employed to analyse the three exons of MECP2 gene in 26 RTT patients and their parents, and in 2 sisters of 2 of the RTT patients.

RESULTSNine different mutations in exon 3 were identified in 14 of the 26 patients with RTT, including 3 missense mutations, 3 nonsense mutations, and 3 frame-shift mutations (2 deletion mutations and 1 insert mutation); 2 of these were novel. A missense variant was also identified, which was carried by unaffected father and affected daughter.

CONCLUSIONMutations in MECP2 gene were found over 50% of patients with RTT in China.

Base Sequence ; Child ; Child, Preschool ; Chromosomal Proteins, Non-Histone ; DNA ; chemistry ; genetics ; DNA Mutational Analysis ; DNA-Binding Proteins ; genetics ; Female ; Humans ; Infant ; Methyl-CpG-Binding Protein 2 ; Mutagenesis, Insertional ; Mutation ; Mutation, Missense ; Polymorphism, Single-Stranded Conformational ; Repressor Proteins ; Rett Syndrome ; genetics ; Sequence Deletion

Objective To evaluate the effectiveness of family-centered educational intervention on fall prevention knowledge and attitude,compliance and fall incidence of elderly inpatients. Methods A total of 300 elderly inpatients were selected in a first-class grade A hospital in Beijing and divided into the experiment group and the control group equally.The intervention group was given family-centered educational intervention for 6 months,while the control group was given conventional treatment and care in ward.The knowledge and attitude,compliance and the incidence of falls of elderly inpatients were evaluated at discharge and 3 months,6 months after discharge. Results The knowledge and attitude, compliance of elderly inpatients in the intervention group were significantly better than that in the control group (P<0.05).The incidence of falls in the intervention group was significantly lower than that in the control group at discharge and 3 months,6 months after discharge (P<0.05). Conclusions The family-centered educational intervention can enhance the fall prevention knowledge, attitude and compliance of elderly inpatients effectively and reduce the incidence rate of falls.The long-term effect is relatively obvious.

Objective To investigate the protective effect of mild hypothermia at different starting times on the physiological functions of the viscera of exertional heat stroke (EHS). Methods A prospective randomized controlled trial was conducted. EHS patients admitted to intensive care unit of the 159th Hospital of People's Liberation Army and the First Affiliated Hospital of Zhengzhou University from June 2015 to June 2017 were enrolled. The patients were divided into 2, 4, 6 hours start hypothermia treatment groups according to the random number table method, the mild hypothermia was initiated at 2, 4 and 6 hours after the disease onset respectively, and the methods were the same in each group. After treatment of 2, 12, 24 hours, the venous blood in the three groups was collected to detect serum cardiac troponin I (cTnI) with chemiluminescence method, MB isoenzyme of creatine kinase (CK-MB) with immunosuppressive method, creatinine (Cr) with creatine oxidase method, β2-microglobulin (β2-MG) with turbidimetry, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) with enzyme method. Multiple organ dysfunction syndrome (MODS) within 24 hours after treatment was recorded. Linear regression analysis of the correlation between mild hypothermia start-up time and MODS was done. Results Ninety-three cases of EHS were included,with 32, 31 and 30 patients in 2, 4, 6 hours start treatment groups respectively. There were no significant differences in gender, age, core temperature, onset time to admission, Glasgow coma scale (GCS), acute physiology and chronic health evaluation system Ⅱ(APACHE Ⅱ) score at admission among the three groups. There were no significant differences in the levels of serum cTnI, CK-MB, Cr, β2-MG, ALT and AST at 2 hours after treatment. But with the prolongation of the treatment time, all indicators gradually increased. And the earlier start of the mild hypothermia, the less significant of the above indexes. All indexes in 2 hours start treatment group were significantly lower than those of 2 hours and 6 hours start treatment groups at 24 hours after treatment [cTnI (ng/L): 49.53±9.25 vs. 56.52±10.05, 64.57±11.21; CK-MB (U/L):51.47±11.83 vs. 57.87±7.43, 64.40±7.93; Cr (μmol/L): 140.97±11.33 vs. 148.16±10.39,155.57±8.65; β2-MG (mg/L): 10.28±1.46 vs. 11.58±2.13, 12.93±1.98; ALT (U/L): 248.53±75.47 vs. 341.42±129.58, 425.77±101.23;AST (U/L): 197.25±42.59 vs. 292.81±58.49, 351.20±60.41, all P < 0.05]. There was significant difference in the incidence of MODS in 2, 4, 6 hours start treatment groups [43.75% (14/32), 64.52% (20/31), 80.08% (24/30), χ2= 8.761, P = 0.013]. Linear regression analysis showed that the earlier onset time of mild hypothermia, the lower incidence of MODS (R2= 0.915, P = 0.013). Conclusion The application of mild hypothermia in 2 hours can effectively protect the physiological function of EHS organs and reduce the incidence of MODS.

Objective To observe the effect of different core temperatures (Tc) after heat strike on serum inflammatory cytokines and multiple organ dysfunction syndrome (MODS) in rat. Methods 120 male Sprague-Dawley (SD) rats were randomly divided into normal control group (n = 30) and heat strike group (n = 90). The rats in heat strike group were put into simulated thermal climate animal module after adaptive training. The module temperature was raised to 39 ℃ in 30 minutes with 65% humidity. The rats ran simultaneously at 15 m/min, on the slope of 0°, 8 minutes each time, 2 minutes interval, and the heat strike time was 90 minutes. After the rats came out of the module, rectal temperature, which was Tc value, was recorded. The rats died or Tc < 41 ℃ during the experiment were excluded, the remaining 73 rats were divided into three subgroups: 41.0-41.9 ℃ (n = 38), 42.0-42.9 ℃ (n = 26), and ≥43.0 ℃ (n = 9). The rats in the normal control group were reared at temperature of (25±2) ℃, and humidity of (55±5)%. At 0 hour and 24 hours after the rats came out of the module, femoral artery blood was collected to determine serum interleukins (IL-1α, IL-1β, IL-17), tumor necrosis factor-α(TNF-α) andγ-interferon (IFN-γ) by enzyme-linked immunosorbent assay (ELISA). The cardiac troponin I (cTnI), MB isoenzyme of creatine kinase (CK-MB), serum creatinine (SCr), blood urea nitrogen (BUN), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) levels were determined by automatic biochemical analyzer. The incidence of MODS and the number of accumulative organs within 24 hours of the rats in different Tc of heat strike group were compared and analyzed. Results The serum inflammatory cytokines and biochemical parameters at 0 hour after heat strike were significant higher than those of the normal control group, and showed a time dependence. Further analysis showed that the inflammatory response and organ dysfunction in rats were increased gradually with the increase in Tc of rats. Compared with the normal control group, at 24 hours after heat strike, inflammatory cytokines in Tc≥43.0 ℃ rats were increased obviously [IL-1α (ng/L): 13.56±2.07 vs. 2.24±0.62, IL-1β (ng/L): 17.11±1.90 vs. 7.40±1.52, IL-17 (ng/L): 17.00±1.41 vs. 6.00±1.78, TNF-α (ng/L):16.78±1.79 vs. 7.27±1.74, IFN-γ (ng/L): 21.11±2.09 vs. 10.43±2.31], and the biochemical parameters were also increased obviously [cTnI (ng/L): 50.78±6.67 vs. 20.53±3.09, CK-MB (U/L): 62.89±3.82 vs. 22.00±3.01, SCr (μmol/L): 149.22±4.35 vs. 92.53±8.32, BUN (nmol/L): 55.22±1.99 vs. 19.10±2.02, ALT (U/L): 388.33±4.97 vs. 100.23±10.61, AST (U/L): 361.22±6.53 vs. 97.67±10.54, all P < 0.01]. The incidence of MODS within 24 hours in the heat strike group was 54.79% (40/73), and the higher the Tc, the higher the incidence of MODS, and the more insulted organs [the incidence of MODS in 41.0-41.9 ℃, 42.0-42.9 ℃, and ≥43.0 ℃ subgroups was 36.84% (14/38), 65.38% (17/26), 100.00% (9/9), and the organ involvement rate was 12.17% (37/304), 23.08% (48/208), and 48.61% (35/72), respectively, when 8 organs or systems were calculated for each rat, both P < 0.01]. Conclusion The higher the Tc of heat strike rats, the stronger the inflammatory reaction and the more serious the damage of tissue, and the more extensive damage of the organs.

Objective To investigate the effects of heat acclimatization training on the inflammatory reaction and multiple organ dysfunction syndrome (MODS) in patients with exertional heat stroke (EHS). Methods 600 officers and soldiers from a special team who participated in 5 km armed wild training from June to July 2017 were selected as the research object, while 30 healthy officers and men who did not participate in armed wild training during the same period were selected as normal controls. The officers and soldiers who participated in 5 km armed wild training (ambient temperature > 35 ℃, humidity > 65%, 2-3 times a week for 3 weeks) were divided into heat acclimatization group and non-acclimatization group, with 300 in each group. The heat acclimatization group first took part in the heat acclimatization training of wild or long distance running (the initial temperature was 30 ℃, gradually transferred to the hot time of 37 ℃), 2 hours each time, twice a day, and 5 days a week, for a total of 2 weeks. Venous blood was taken before and after heat acclimatization training, before armed wild training, and after the last training or EHS onset, and the contents of serum interleukin (IL-1β, IL-10), tumor necrosis factor-α (TNF-α) and γ-interferon (IFN-γ) were detected by enzyme linked immunosorbent assay (ELISA). The occurrence of EHS and MODS in EHS patients were recorded. Results There was no significant difference in serum inflammatory factors between the officers and soldiers who participated in the training and the healthy control group before heat training or cross-country training. Compared with those before heat training, IL-1β, TNF-α, IFN-γ were significantly increased in all participants of heat acclimatization training while IL-10 was significantly decreased. For those who experienced premonitory (6 cases) and mild (2 cases) heatstroke during training, they could return to normal without severe heatstroke or EHS within 10-30 minutes after being immediately put in a cool and ventilated place and given anti- heatstroke drugs and other interventions. Compared with those before wild training, the levels of inflammatory factors in the two groups of officers and soldiers also changed after wild training, but the increase or decrease of inflammatory indexes in the heat acclimatization group were significantly smaller than those in the non-acclimatization group [IL-1β (ng/L): 10.65±5.18 vs. 12.13±7.91, TNF-α (ng/L): 14.60±5.79 vs. 16.27±8.52, IFN-γ (ng/L): 13.66±5.43 vs. 15.33±8.71, IL-10 (ng/L):8.22±2.68 vs. 7.13±2.63, all P < 0.05]. During armed wild training, a total of 27 cases of EHS occurred. The incidence of EHS in the heat acclimatization group was significantly lower than that in the non-acclimatization group [2.67% (8/300) vs. 6.33% (19/300), χ2= 4.693, P = 0.030]. In patients with EHS, IL-1β, TNF-α, IFN-γ after wild training in the heat acclimatization group were also significantly lower than those in the non-acclimatization group, and IL-10 was significantly higher [IL-1β (ng/L): 34.50±3.74 vs. 39.53±4.51, TNF-α (ng/L): 43.75±2.87 vs. 46.79±2.66, IFN-γ (ng/L): 40.25±1.75 vs. 46.58±1.92, IL-10 (ng/L): 7.50±2.45 vs. 5.42±1.80, all P < 0.01], and the incidence of MODS and organ involvement of EHS patients in the heat acclimation group were significantly lower than that in the non-acclimatization group [50.00% (4/8) vs. 89.47% (17/19), χ2= 5.075, P = 0.024; 28.13% (9/32) vs. 47.79% (65/136), χ2=4.066, P=0.044]. Conclusion Heat acclimatization training before high strength training in high temperature and humidity environment can effectively reduce the degree of inflammation reaction of EHS, protect the physiological functions of EHS organs, and reduce the incidence of MODS.