Objective　To investigate the epidemic situat ion of the dental fluorosis among the people in Tianjin area.Methods　With the method of random sampling we investigated epidemic situation of the dental fluorosis among the people aged 12 to 15 in Tianjin area.Results　The minimum patient's rate for this disease among those aged 12 to 15 is 32.11 percent while the maximum is 78.09 percent.The l owest dental fluorosis index is 0.851 and the highest is 1.923.The patient's rate and the index are both higher than the average rate and index of the whole cou ntry.Conclusions　Tianjin is one of the areas where the dental fluorosise epidemic mostly occurs.

Objective: To study the effects of BMPs signals on the proliferation of tongue cancer Tca8113 cells. Methods: Th e cDNA of truncated BMP-II receptor was transfected into Tca8113 cells by usin g FuGENE6 transfection kit, the transfected cells were named Tca8113ZR. The pro liferation and DNA synthesis of Tca8113 and Tca8113ZR cells were investigated b y MTT assay,FCM and BrdU analysis. Results: In MTT assay the A value of Tca8113 and Tca8113ZR cells was 0.47?0.01 and 0.35?0.01 (P0.05).Conclus ion: BMPs might be involved in the development of squamous cell carc inoma of tongue.

Objective:To examine the relationships between acute stress disorder (ASD) symptoms,posttraumatic stress disorder (PTSD) symptoms and depressive symptoms in children survivors following the Lushan earthquake in China.Methods:One hundred ninety-seven children aged 1 to 14years (93 male and 104 female) were followed up at two and six weeks after Lushan earthquake.The ASDS,UCLA PTSD Reaction Index and DASS were used to measure the ASD,PTSD and depressive symptoms.Results:The average scores of ASDS and the depression subscale of DASS at two weeks after earthquake were(36.5 ± 10.9) and (3.3 ± 2.8),respectively.The average scores of UCLA PTSD Reaction Index and the depression subscale of DASS-21 at six weeks after earthquake were (18.5 ± 12.6) and (3.3 ± 3.5),respectively.The rates of ASD and PTSD were 28.6％ and 8.2％,respectively.The cross-lagged structural equation analysis with latent variables indicated that the ASD symptoms at two weeks after earthquake positively predicted PTSD symptoms (β =0.59,p ＜ 0.001) and depressive symptoms (β =0.29,p ＜0.001) at six weeks after earthquake.But there was no significant association between depressive symptoms at two weeks and PTSD symptoms at six weeks after earthquake.Conclusion:ASD symptoms in the early time postearthquake could predict subsequent PTSD and depressive symptoms,while depressive symptoms tend to remain stable within six weeks after earthquake.

Adolescent ; Child ; Child, Preschool ; Female ; Hepatocyte Growth Factor ; metabolism ; Humans ; Kidney ; metabolism ; pathology ; Male ; Nephrotic Syndrome ; metabolism ; pathology ; Proto-Oncogene Proteins c-met ; metabolism

Objective:To determine the change in the dietary patterns of Hunan urban residents from1982 to 2012. Methods:A 24 hour dietary recall method was used for 3 consecutive days to collect information on food intake, and the condiment intake was collected by weighting method. Results:Rice products and potato consumption were 449.0 g per person per day and 44.0 g per person per day in 1982, and dropped to 150.0 g per person per day and 9.0 g per person per day in 2012. In 2012, vegetable (277.1 g per person per day), fruits (47.8 g per person per day), milk and dairy products (16.6 g per person per day) consumption were still insuffcient. Fat (59.3 g per person per day) and salt (10.1 g per person per day) consumption was still high. Conlusions:hTe dietary quality of urban residents in Hunan has been greatly improved, but is still seriously imbalanced. To consume more fruits, milk and dairy products and reduce fat and salt intake are very important.

Objective To investigate the relationship between blood concentration of sodium valproate and the anti‐epileptic effect and the influencing factors of blood concentration of sodium valproate ,and to provide evidence for clinical individual adminis‐tration .Methods The blood concentrations of 133 cases of patients treated with sodium valproate were determined in the affiliated Yongchuan hospital of Chongqing medical university ,the monitoring results of blood concentration were statistically analyzed ,and the anti‐epileptic effect of 133 cases of patients were observed and analyzed .Results The epilepsy of 80 cases of patients were con‐trolled ,accounted for 60 .15% of the total number;in the 69 cases of patients within the effective blood drug concentration (50-100 mg/L) ,the epilepsy of 51 cases of patients were controlled ,accounting for 38 .35% .In the 44 cases of patients whose blood drug concentration were less than 50mg/L ,the epilepsy of 26 cases of patients were not controlled .The distribution of blood concentra‐tion between men and women were similar .The blood concentrations among each age group were different ,the blood concentrations of 52 .87% patients in the adult group were below or above therapeutic range that were 39 .13% in the minor group .The adverse reactions were increase with the increase of blood concentration .Conclusion There are differences between the blood concentrations of sodium valproate and clinical effect ,the reasonable individual administration should be conducted according to the patient′s blood concentrations of sodium valproate ,the epilepsy control situation of patients and the patients′age .

Objective To establish the quality standards of Longdan Xiegan Capsule and Longdan Xiegan Soft Capsule. Methods Gentianae Radix et Rhizoma, Bupleuri Radix, Scutellariae Radix, Gardeniae Fructus, Alismatis Rhizoma, Angelicae Sinensis Radix, Rehmanniae Radix and Glycyrrhizae Radix et Rhizoma were identified by TLC. Gentiopicrin in Gentianae Radix et Rhizoma, geniposide in Gardeniae Fructus, baicalin in Scutellariae Radix were determined by HPLC. Results The TLC spots developed were clear. Gentiopicrin showed good linear relationship in the range of 0.066 1-0.595 1 mg (r=1.000 0), the average recovery of Capsule was 99.34%(RSD=1.50%), and the average recovery of Soft Capsule was 96.62%(RSD=1.50%). Geniposide showed good linear relationship in the range of 0.076 1-1.369 8 mg (r=0.999 9), the average recovery of Capsule was 101.3% (RSD=1.70%), and the average recovery of Soft Capsule was 100.59%(RSD=0.79%). Baicalin showed good linear relationship in the range of 0.214 4-1.608 mg (r=1.000 0), the average recovery of Capsule was 101.12% (RSD=1.30%), and the average recovery of Soft Capsule was 98.07% (RSD=2.40%). Conclusion The method is simple and reproducible. It can be used to control the quality of Longdan Xiegan Capsule and Longdan Xiegan Soft Capsule.

Objective:To observe the clinical effect of acupuncture combined with low-frequency electric stimulation on scissor gait in children with spastic cerebral palsy. Methods:A total of 60 spastic cerebral palsy kids were allocated into two groups by random number table, 30 in each group. Cases in the control group were treated with physical exercise therapy, massage and hydrotherapy. Based on the therapies given to the control group, cases in the observation group were supplemented with acupuncture combined with low-frequency electric stimulation. Selected points included Zusanli (ST 36), Sanyinjiao (SP 6), Yanglingquan (GB 34), Jiexi (ST 41), Chengshan (BL 57), Naoqing [Extra, locates at 2 cun directly above Jiexi (ST 41)] and Genping (Extra, locates at the midpoint of the line connecting medial and lateral malleolus). The treatment was done once every other day and 10 d made up a treatment course. The low-frequency electric stimulation was applied to anterior tibia, 6 times a week and 20 times made up a treatment course. Cases were treated for a total of 3 courses and there was a 15-20 d interval between two courses. The low limb functions were assessed before and after treatment using the modified Ashworth scale (MAS) and composite spasticity scale (CSS). In addition, the ankle dorsiflexion angles were measured before and after treatment. Results:After treatment, the ankle dorsiflexion angles and CSS scores in the observation group were better than those in the control group, showing statistical significances (P<0.05); the effective rate in the observation group calculated by MAS and ankle dorsiflexion angle were both higher than that in the control group, showing a statistical significance (P<0.05). Conclusion:Rehabilitation training combined with acupuncture and low-frequency electric stimulation can achieve better effect than rehabilitation training alone in improving scissor gait in kids with spastic cerebral palsy.

BACKGROUND:Under hypoxic environment, hypoxia inducible factor-1 plays an important role in regulation of hypoxia-induced gene expression in the intervertebral disc. Hypoxia-inducible factor-1 consists of α and βsubunits, and which hypoxia inducible factor-1α determines the stability and activity of hypoxia-inducible factor-1. OBJECTIVE: To observe the expression of hypoxia inducible factor-1α in the human lumbar nucleus pulposus of different herniated types and to judge their relationships. METHODS:A total of 60 nucleus pulposus samples were harvested from the lumbar vertebra, including 41 from L4-5 and 19 from L5-S1, and then divided into protruded group and sequestered group, with 30 cases in each group. Meanwhile, another 10 samples of lumbar nucleus pulposus served as controls. Hematoxylin-eosin staining and streptavidin-biotin peroxidase complex immunohistochemical technique were used to observe the expression of hypoxia inducible factor-1α in the human lumbar nucleus pulposus in different groups. RESULTS AND CONCLUSION:The expression level of hypoxia inducible factor-1α was (58.2±7.5)% in the sequestered group, (27.3±2.3)% in the protruded group, and (10.5±4.7)% in the control group, which was significantly higher in the sequestered group than the other two groups (P < 0.01). These findings indicate that the expression of hypoxia inducible factor-1α in the lumbarnucleus pulposus is associated with the herniated types, which is the highest in the prolapse sequestered type.

BACKGROUND:Endogenous hydrogen sulfide can be used as a new gaseous signaling molecule, and has important signal transfer function and biological regulation effects. OBJECTIVE:To study the neuroprotective effects of hydrogen sulfide in rats with acute cauda equina syndrome. METHODS: The 72 Sprague-Dawley rats were randomly assigned to three groups. Experimental group, model group: laminectomy was performed at the lumbar 4 (L4) level of the vertebra, and a piece of silicone (10 mm long, 1 mm thick, and 1 mm wide) was placed under the laminae of the L5-6 vertebra to produce the animal model of cauda equina syndrome. Sham surgery group: a simple laminectomy was performed in L4, but silicone was not implanted. In the experimental group, 20 μmol/kg NaHS was injected intraperitonealy at 1 hour before model establishment. Model and sham surgery groups: an equal volume of saline was injected intraperitonealy. At 12, 24, 48 and 72 hours after model establishment, malonaldehyde and glutathione levels in cauda equina nerve tissue were detected. Simultaneously, hematoxylin-eosin staining and TUNEL staining were performed at 48 hours. RESULTS AND CONCLUSION:Hematoxylin-eosin staining demonstrated that cauda equina nerve tissue was dense and regular, with complete myelin sheath, no axon sweling in the sham surgery group. Cauda equina nerve tissue was sparse, with the presence of demyelination, and partial axons and myelin sheath sweling in the model group. Cauda equina nerve tissue was tight, with axonal sweling and demyelination in the experimental group. TUNEL staining demonstrated that the number of positive cels was less in the spinal cord and dorsal root ganglia in the sham surgery group. Abundant positive cels were detected in the spinal cord and dorsal root ganglia in the model group. The number of positive cels was significantly lower in the experimental group than that in the model group. Malonaldehyde levels were lower in the sham surgery and experimental groups than in the model group (P < 0.05, P < 0.01), but glutathione levels were higher than model group (P < 0.05,P < 0.01). These results indicated that hydrogen sulfide could decrease oxidative stress and protect cauda equina nerve in rats with acute cauda equina syndrome.