Dentin-Bonding Agents ; Water

Abstract: Objective　To analyze the treatment outcomes of elderly patients with pulmonary tuberculosis in Chongqing, so as to provide reference for the prevention and control strategies of the epidemic of elderly pulmonary tuberculosis. Methods　The data of tuberculosis cases aged ≥65 years in Chongqing from 2015 to 2020 were collected from the National Health Insurance Information Project Disease Prevention and Control Information system. Descriptive statistical methods were used to analyze the data. Results The registration rates of elderly active pulmonary tuberculosis patients and etiological positive patients were 110.95/10-5and 32.25/10-5 in 2015 and 84.06/10-5 and 57.29/10-5 in 2020. The annual decline rate of active tuberculosis registration was 5.40%, and the annual increase rate of pathogenic-positive tuberculosis registration was 12.18%. The registration rates of active tuberculosis patients and etiological positive patients in the whole population were 70.75/10-5 and 17.63/10-5 in 2015 and 50.34/10-5 and 29.14/10-5 in 2020. The annual decline rate of active tuberculosis registration was 6.58%, and the annual increase rate of pathogenic-positive tuberculosis registration was 10.57%. From 2015 to 2020, a total of 25 931 cases of elderly pulmonary tuberculosis were registered, of which 21 374 (82.43%) cases were successfully treated and 4 010 (15.80%) cases had unfavorable outcomes. The proportion of cured and death patients showed an increasing trend year by year (χ2trend=313.853, 100.502, P<0.01). From 2015 to 2020, the average annual successful treatment rate of elderly pulmonary tuberculosis in the whole city was 82.43%, with the lowest rate in southeast Chongqing (74.23%), followed by urban areas (81.99%). The success rate of elderly pulmonary tuberculosis treatment in the whole city, west Chongqing, northeast Chongqing and southeast Chongqing showed a downward trend year by year (χ2trend=230.199, 35.278, 108.076, 112.130, all P<0.01), with annual decline rates of 2.77%, 2.26%, 3.0% and 4.12%, respectively. Among the registered elderly patients, female, 65-<75 years old, Han nationality, newly diagnosed, no complications, and negative for etiology (χ2=15.234, 255.910, 146.842, 179.998, 25.575, 131.170, P<0.01) had higher success treatment rates. Conclusions The prevalence of pulmonary tuberculosis in the elderly population in Chongqing City is declining, but the positive registration rate of etiology is increasing annually, and the success rate of treatment is decreasing. Therefore, it is necessary to strengthen the systematic management, publicity and education of elderly patients (especially those in southeast Chongqing, male, positive patients and severe patients) to effectively control the epidemic of tuberculosis in the elderly.

Churg-Strauss Syndrome ; Female ; Humans ; Middle Aged

Objective To test the reliability and validity of the Chinese version of the John Hopkins Adapted Cognitive Exam ( ACE) in NICU patients. Methods The English ACE was translated and adapted into the Chinese version . Cognitive functions of 40 critically ill patients in NICU were assessed with the Chi?nese version of ACE and MMSE battery.The scores of ACE and MMSE were analyzed to test the content va?lidity,construct validity,concurrent validity,internal consistency,inter?rater reliability and test?retest reliabil?ity.Result The correlation coefficient between each factor and the total score ranged from 0.617 to 0.938, and the content validity was good.The ACE was significantly correlated with MMSE( r=0.822, P<0.05). Five factors were extracted by main principle analysis, the cumulative contribution was 85. 90%, the factor loading of each item was all over 0.5,the scale had good construct validity.There existed a good internal con?sistency ( Cronbach’ α=0.756 ) as well as a good inter?rater reliability ( ICC>0.95) and test?retest reliabil?ity (ICC=0.652?0.979) of the Chinese version of ACE.Conclusions The Chinese version of ACE has been proved to be a reliable and valid screening tool for cognitive impairment in NICU patients.

OBJECTIVE:To observe the effects of clarithromycin and fleroxacin on Pseudomonas aeruginosa(PA) biofilm METHODS:Clinical isolates of 7 strains of PA from respiratory tract were cultured with modified plate culture method;bacterial biofilm model was identified by silver nitrate staining;MICs were determined by broth microdilution The number of viable bacteria in biofilm was measured by using MTT method and bacterial adherence was measured by crystal violet staining RESULTS:1/16MIC and 1/4MIC of clarithromycin could inhibit the adherence of PA to silica-gel film(P

Objective To study the rationality and possibility of 64 slice spiral CT in the examination of the temporal bone at low dose.Methods The same CT technique and temporal bone mode as those for clinical CT were used,two cranium specimens(four ears)were scanned with Somatom Sensation 64-slice spiral CT at different mA(380,300,200,160,120,80),and muhi-planar reformation was performed.The CT dose index at different mA groups were measured by 10 cm pencil ionization chamber and head dose phantom.Four anatomic structures on axial images(subarcuate fossa,tendon of tensor tympani, facial recess,etc),four anatomic structures on coronal images(scute,crista transversa,fenestra cochleae, etc)and six anatomic structures on double oblique images(malleus,incus,stirrup bone,upper bony semicircular,etc)were chosen to evaluate and grade the reformation images among different mA groups,and to determine the minimum mA value.Ten ears of five patients were used to test the validity of the minimum mA value.Results CT radiation dose was significantly reduced from(47.8?2.7)to(20.1?2.0)raCy (P

ObjectiveTo observe the effect of parathyroid hormone on expression of matrix GLA protein (MGP) in ovariectomized SD rats and primary osteoblast,and to study the role of MGP on the possible mechanism of postmenopausal osteoporosis.MethodsThirty-six Sprague-Dawley female rats were allocated into 3 groups,12 in each:sham operation group,ovariectomized group( OVX group),ovariectomized and parathyroid hormone treatment group.Animals in the parathyroid hormone group were injected parathyroid hormone (20 μg/kg,three times a week for 12 weeks) three weeks after ovariectomy.All rats were sacrificed after 18 weeks.Urine and serum were collected every three weeks.Lumbar vertebral bones were observed by immunohistochemistry.Bone mineral density (BMD) of lumbar vertebra of rats was determined.The content of MGP in serum and urine was determined by enzyme-linked immunosorbent assay (ELISA).Expression of undercarboxylated Matrix GLA Protein (ucMGP) was detected by immunochistochemistry.Relative quantification of MGP mRNA expression in lumbar vertebra bone was detected by Fluorescent real-time quantitative polymerause chain reaction.Results ( 1 ) 18 weeks after ovariectomy,BMD of lumbar vertebra in OVX group was lower than those in sham group and parathyroid hormone group significantly ( P＜0.05 ).(2) The content of MGP in serum and urine was dynamic variation after treatment hy parathyroid hormone,and it was significant compared with OVX group ( P＜0.05 ).( 3 ) Immunohistochemical localization of ucMGP was seen in lumbar vertebra in OVX group.(4) Relative quantification of MGP mRNA expression in lumbar vertebra in OVX group was increased significantly compared with other groups ( P＜0.01 ).( 5 ) parathyroid hormone ( 1-34 ) in 10-7mol/L,10-8mol/L,10-9 mol/L up-regulated MGP mRNA expression in primary osteoblasts about 6.78,5.31,and 2.23 times than control respectively.It was in a dose-dependent manner.ConclusionThe effect of parathyroid hormone on the expression of matrix gla protein may play an important role in mechanism of postmenopausal osteoporosis

Objective To transplant the umbilical cord mesenchymal stem cells(UCMSCs) derived from human umbilical cord into cisterna magna of hypoxic-ischemic encephalopathy(HIE) rat model,and to observe their survival,proliferation and differentiation in the rat brain.Methods UCMSCs were isolated from human umbilical cord of babies delivered after full-term normal cesarean section,and labeled by bromodeoxyuridine(BrdU).Pregnant rats were randomly divided into experimental group(n=6) and control group(n=1).HIE models were built by ligating both sides of the uterine arteries of full-pregnant rats(21 days) in experimental group rats for 15 minutes.The neonatal rats in experimental group were divided into stem cells group(n=24) and PBS group(n=19) at random.The labeled UCMSCs were injected into cisterna magna of the rats in stem cells group,while PBS was injected into the rats of PBS group.In 1,2,3 and 4 weeks after transplantation,the brain tissue section slides were immunohistochemically stained with antibodies against BrdU,Nestin,neuron specific enolase(NSE) and glial fibrillary acidic protein(GFAP),and thionin.Control group with normal delivery was tested as concurrent control.Results At 1 week after transplantation,BrdU,Nestin,NSE and GFAP positive cells were found in the hippocampal dentate gyrus of the rats in stem cells group rats.The number of BrdU-positive and Nestin-positive cells increased(Pa0.05).The NSE-positive and GFAP-positive cells gradually increased from 1-4 weeks post transplantation and comparisons between groups had statistical significance(Pa

The data mining technology was introduced, and the law and peculiarity of TCM syndrome and treatment were analyzed in this paper. Concurrently, the application of the data mining in TCM researches on rule of syndrome and treatment was roughly summarized and its advantages and existing problems were pointed out. In order to enhance the efficiency and the appliance value of the mining technology and to accelerate the development of TCM research, the method for integrating multi-algorithms to make the mining was proposed.
Biomedical Research ; Data Mining ; methods ; Diagnosis, Differential ; Drug Therapy ; Humans ; Medicine, Chinese Traditional

Objective: To compare the inhibitory effect of carmustine(BCNU) and bleomycin on craniopharyngiomas in vitro. Methods: Cells were successfully cultured in vitro from the fresh specimens, then the culture medium with bleomycin or BCNU at different concentration was added. The tumor inhibitory curve-line was drawn based on the cell number at different time points. After cultured for 144 h, ATP-luminescence assay was applied to test the antitumor effect. Results: The cell number decreased rapidly when the medium was added. The decreasing speed was faster in BCNU medium than that in bleomycin medium at the same concentration. The bleomycin medium showed no significant inhibitory effect except for the one at 1.00 g/L. However, regardless of the concentration, BCNU medium inhibited the cells effectively. Conclusion: BCNU has stronger inhibitory effect on craniopharyngiomas cells than bleomycin, it can be used to treat this tumor