Objective Periodontal clinical effects of hyperbaric oxygen therapy were analyzed and discussed the foundation .Methods Our hospital from 56 patients with periodontal disease in August 2013 admitted -August 2014 period, were randomly divided into experimental and control groups , and the control group underwent drug treat-ment on a regular basis , the experimental group on the basis of the control group , the line hyperbaric oxygen therapy , compared to its clinical effects .Results The symptoms were improved , but the effect more pronounced in the exper-imental group, which was significantly better than the control group of patients , compared to significantly different sta-tistically significant ( p<0.05 ) .Conclusion Hyperbaric oxygen combined basis have better clinical treatment of periodontal disease , which should be widely applied , pending further improved and refined to improve the outcome .

10-15 years were 7 cases(6.3%),they were randomly divided into treatment group and contol group.The treatment group with 60 patients were given INF-? and polyresistin,age 3 years,given IFN-? 200 000 U per day;and polyresistin 5 mg per time,3 times every day,the course of therapy were 5 days.The control group was given traditional Chinese medicine at the same time.Results After therapy,in treatment group,53 cases(88.3%) of children′s cooling time were lower than 5 days,47 cases(78.3%) of children′s rash subsided time were lower than 6 days,48 cases(75%) of children′s Catarrhal symptoms disappeared time were lower than 5 days,and the rate of complications′ occurrence were 15 cases(18.3%).In control group,28 cases(53.8%) of children′s cooling time were lower than 5 days,14 cases(26.9%) of children′s rash subsided time were lower than 6 days,28 cases(53.8%) of children′s Catarrhal symptoms disappeared time were lower than 5 days,and the rate of complications′ occurrence were 37 cases(71.5%),there were significant differences between both groups(Pa

Objective To explore the cognitive status of community-dwelling older adults with subjective memory complaints (SMC).Methods A total of 262 older adults with SMC were included based on convenience sampling.Face-to-face interview was conducted for demographic information collection and cognitive assessment.Statistical analyses Were undertaken using SPSS version 19.0.Results The participants with SMC had a low level of general cognitive function,with a mean score of 22.18±4.21 on the MoCA; the two cognitive domains of abstraction' and deIayed memory had the lowest scores,with an average score of 0.85±0.82 and 2.91± 1.50 respectively,and the average scoring rate lower than 60.00％.About 54.20％ of the older adults with SMC presented with cognitive impairment.The scores ofabstraction were low in the participants with and without cognitive impairment.In addition,the scores of visuospatial/executive function, language and delayed memory were low in the participants with cognitive impairment.The cognitive impairment of persons with SMC may be associated with age and marital status.The people over the age of 70 years and widowed ones are more likely to suffer from cognitive dysfunction.Conclusion The older adults with SMC have a low level of general cognitive function,and cognitive imPairment detection rate is higher.Advanced age and widowhood are important factors affecting their cognitive function.

Hazards of noise-induced hearing loss (NIHL) to crowd who are long-term exposured and work in the noisy environment is increasingly prominent. But just part of the individuals who are exposed to the same noisy environment have hearing loss, and the severity of hearing loss are different, which indicates genetic predisposition might be associated with NIHL. In recent years, many experts and scholars at home and abroad have done a lot of research in this field, this article summarizes all available studies.
Genetic Predisposition to Disease ; Hearing Loss, Noise-Induced ; genetics ; Humans ; Noise, Occupational ; adverse effects

BACKGROUND: High-altitude training before competition aims to obtain maximum hypoxia physiological adaptability of athletes through hypoxia environmental irritation at high altitude. Physiological adaptability to high al titude is the substantial foundation for function improvement of athletes,reflecting adjustment of body to environmental changes.OBJECTIVE: In views of self-regulation, practical training and compressed spectral array (CSA) electroencephalogram (EEG), and by observing adaptive change rule of brain before (before competition) and after high-altitude training of swimming athletes, the influence of high-altitude training was analyzed systematically on self-organizing state of athletes before competition so as to probe into the impacts of high-altitude training from brain level.DESIGN: Randomized investigation.SETTING: Guangdong Scientific Institute of Physical Exercise and Physical Exercise College of South China Normal University.PARTICIPANTS: Nine swimming athletes were selected from Guangdong Swimming Team from March to April 2001.METHODS: Time-order observation was applied in the experiment, in which, the results 1 week (3rd March) before high-altitude training, during (22nd March) and on the 5th day (5th April) after the training, the results in competition on the 13th day (12th April) after high-altitude training and corresponding blood lactic acid were tested and SCA EEG was done successively one day before high-altitude training (10th March), on the 1st day after the training (30th March) and on the 11th day after training, that was two days before National Competition (10th April) to observe self- adaptive regulation of brain to sports training load.MAIN OUTCOME MEASURES: ① Training index and lactic acid change before and during high-altitude training and before competition. ②Comparison of results before high-altitude training and in competition. ③Changes in indexes of cerebral evaluation before, during and after high-altitude training and before competition.RESULTS: ① Training results were changeable in high-altitude training.In national competition after high-altitude training, the scores of 6 cases of 10 person-times were reduced. Changes in blood lactic acid after high-altitude training were in conformity with training results. ② After high-altitude training, the average frequency of brain information distribution in athletes was shifted towards high frequency. Before the competition, negative entropy was lessened and information entropy was dispersed and the score in competition was declined.CONCLUSION: ① Cerebral order parameters of athletes constitute multicentralization, form the dispersion of technique control information and result in re-adjustment of brain function at matrix coordinating level, suggesting declining capacity to athletics. ② Effects of high-altitude training and maintaining of its functions are based on coincidence and continuity of arrangement of rise-fall training intensity of individual state and on the recovery and maintaining of the intensity at flatlands.

BACKGROUND:The anatomical strucure of acetabulum is smal and shal ow in adult acetabular dysplasia patients. The large amount of cal us and scar tissues in the acetabulum make it difficult to identify and instal the acetabular cup during arthroplasty. The comprehensive understanding of the acetabulum before arthroplasty is the premise for selecting the appropriate acetabular prosthesis and making the acetabular reconstruction program. OBJECTIVE:To evaluate the application value of three-dimensional reconstruction technique in choosing the size of acetabular cup before total hip arthroplasty for acetabular dysplasia. METHODS:Spiral CT was carried out in the 11 acetabular dysplasia patients who waiting for total hip arthroplasty. The acetabulum was multi-planar reconstructed, and the size of the acetabular cup was determined through digitized acetabular cup template implantation, and then the mathching degree assessment was performed to compare with the actual size. RESULTS AND CONCLUSION:Spiral CT could clearly show the acetabular morphology, and the 71.4%of the acetabular size chosen in the three-dimensional preoperative plan was the same as actual one, the intraclass correlation coefficient was 0.888. The agreement was much higher than that of two-dimensional preoperative plan based on X-ray plain film. For the patients with acetabular dysplasia, the acetabulum became saml er and shal ower, and there were various extents of bone defects in the superior-lateral acetabulum. Three-dimensional multi-planar reconstruction can effectively evaluate the acetabular morphology, and three-dimensional preoperative plan can provide useful information for the choice of implant.

In recent years, the studies of the treatment of cerebral infarction have turned to the areas of neuroprotective agents. The promotion of angiogenesis after stroke will become one of the novel approaches after cerebral infarction. Studies have shown that the activation of the kallikrein-kinin system (KKS) after cerebral infarction may promote angiogenesis after cerebral infarction, improve the neurological deficits, and reduce the mortality and disability. This article reviews the regulatory mechanisms of KKS in the angiogenesis after cerebral infarction.

Objective To assess the left ventricular longitudinal shrinkage function in liver cirrhosis patients with two-dimensional speckle tracking imaging (2D-STI). Methods Echocardiography and Doppler echocardiography were performed in 34 patients with liver cirrhosis and 35 healthy subjects of corresponding ages. High frame rate two-dimensional images were recorded from apical long-axis view, four-chamber view and two-chamber view of left ventricle; then the left ventricular diameter, left atrium diameter, the peak filling velocity of E wave and A wave, E/A ratio, EF and FS were measured. The peak systolic strain of left ventricular segment was measured with two-dimensional strain software. Results Compared with healthy subjects, left ventricular diameter, left atrium diameter, EF and FS of liver cirrhosis patients were not statistically different (P>0.05), but the E/A ratio was lower (P<0.05). The peak systolic strain of most left ventricular segment in liver cirrhosis reduced significantly (P<0.05), except that of base segment of posterior wall, anterior wall, inferior wall, anterior and posterior interventricular septum, as well as middle segment of posterior interventricular septum. Conclusion The heart shape, systolic and diastole function of liver cirrhosis are abnormal. 2D-STI can early and accurately evaluate the systolic function of liver cirrhosis.

Objective To investigate the incidence of dental fluorosis,urinary fluoride level and intelligence of children who lived in the coal-burning-borne endemic fluorosis areas and to reveal the effects of comprehensive control measures on intelligence of children in this area.Methods Children aged 8-12 who lived in coal-burning-borne endemic fluorosis areas in Bijie City of Guizhou Province were selected and divided into two groups according to the duration of comprehensive treatments given:long treatment group (Xiaba Village and Zhongtun Village,furnace stovewas changed and comprehensive control measure of health education was carried out for more than 3 years) and short treatment group(Chadi Village and Maoliping Village,stoves were improved and health education time ＜ 1 year).The children who lived in a non-fluorosis area were selected as controls in 2012.Dental fluorosis was diagnosed by the method of Dean; urinary fluoride was analyzed by the method of fluoride-ion selective electrode; and the intelligence quotient (IQ) was measured by Raven's Standard Progressive Matrices Test.Results The number of children surveyed in control group was 104,long treatment group was 298,short treatment group was 339,and the incidence rates of dental fluorosis were 0 (0/104),725％(216/298) and 85.2％ (289/339),respectively,and the incidence rates of dental fluorosis in children lived in the endemic fluorosis areas were significantly increased compared with that of control group; the difference of incidence rates between long treatment group and short treatment group was statistically significantly(x2 =15.736,P ＜ 0.01).Urinary fluoride content were (2.33 ± 0.18) and (3.03 ± 0.16)mg/L,respectively,compared with the control group[(1.34 ± 0.64) mg/L],the values in endemic fluorosis areas were significantly higher(F =306.53,P ＜ 0.01).Above average IQ of children in the control group was 97.1％ (101/104),which was significantly higher than that of long and short treatment groups; after a lengthy treatment,mental retardation detection rate was significantly lower in the low-age group,8-10 year-old ehildren(x2 =7.542,P ＜ 0.01).Urinary fluoride content was negatively correlated with the level of IQ (r =-0.553,P ＜ 0.01).Conclusions The intelligence development of children in coal-burning-borne endemic fluorosis area is significantly delayed.After a certain period of comprehensive treatment,the decreased level of cognition is inhibited and the mental retardation in the low-age group is improved.

Objective To investigate the effects of COMT G472A genetic polymorphism on postoperative analgesia with fentanyl.Methods One hundred and twenty-nine ASA I or Ⅱ patients aged 19-71 yr undergoing operation on lumbar vertebrae under general anesthesia were enrolled in this study.Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to detect the polymorphism of COMT G472A.The patients were assigned into 2 groups according to their genotypes:wild group and mutation group.Pain was assessed using VAS after the patients regained consciousness.When VAS score ＞ 3,the patients were given fentanyl 20μg iv every 5 win until VAS score was decreased to ≤ 3.PCIA was then started.The PCIA solution contained fentanyl 20 μg/kg + flurbiprofenaxetil 150-250 mg or propacetamol 4-6 g in normal saline 75 ml.The patients received a background infusion of 1 ml/h after a loading dose of 3 ml.The PCIA pump was programmed to allow a 0.5 ml bolus with a 15 min lockout interval.The amount of fentan yl infused in 24 h and 48 h was recorded.The amount of flurbiprofen (1 mg=fentanyl 1 μg) or propacetamol (1 g =fentanyl 37.5 μg) was transformed into fentanyl.Results Significantly less fentanyl was consumed in 48 h in mutation group ( n =49) than in wild group ( n =80).Conclusion COMT G472A is a factor contributing to the individual variation in patient' s response to postoperative analgesia with fentanyl.