Composite Resins ; Dental Cements ; Dental Restoration, Permanent ; Humans

Composite Resins ; Dental Restoration, Permanent

Child ; Evidence-Based Medicine ; Humans ; Nephrotic Syndrome ; diagnosis ; etiology ; therapy ; Practice Guidelines as Topic ; Recurrence

?AIM: To discuss the effect of laser exposure on visual acuity and macula.?METHODS: Retrospective and consecutive case series. A retrospective analysis of 11 patients (11 eyes) with laser retinal injury was carried out from January 2014 to June 2015 in Ophthalmology Department of No. 474 Hospital of Chinese PLA. All individuals underwent visual acuity, best corrected visual acuity ( BCVA ) , and spectral-domain optical coherence tomography ( SD-OCT) for macular at first visit, and fundus fluorescein angiography ( FFA ) , visual field, and multifocal electroretinogram ( mf ERG ) were perform if necessary. Symptomatic therapies, supportive therapies and pars plana vitrectomy ( PPV ) were performed depended on the patient’s condition. The patients were followed-up at 1, 3 and 6mo after the first visit, and patients were undertaken visual acuity, BCVA, macular SD-OCT and so on.?RESULTS: Eight patients ( 73%) were under 18 years old and all patients were young males, who were injured by laser pointers when playing. Three patients ( 27%) over 18 years old were injured accidentally at work. Ten (91%) patients’ BCVA were ≤0. 3, while one ( 9%) patient’s BCVA was higher ≥0. 3. Full-thickness macular holes ( the diameter 224-519 μm ) were detected in 10 patients (91%), while sub-foveal RPE changes and IS/OS injury in 1 patient ( 9%) . Macular hole with traction or cystoid edema in 6 eyes (55%) were received PPV, while the other 5 eyes ( 4 eyes with stable macular hole and 1 eyes with RPE injury ) received conservative treatment. Macular hole closed successfully in 1 eye ( 17%) after PPV, while macular hole in the other 5 eyes ( 83%) were stable after PPV of which the cystoid edema faded. The 4 patients with macular hole and 1 patient with RPE injury were stable during follow-up period. However, the BCVA in all patients had no significant improvement at end.?CONCLUSION: Exposure to laser devices could lead to severe macula injury that could reduce central vision, which is permanent.

Objective To investigate the prevalence of subclinical hypothyroidism and its relation to serum total cholesterol (TC),triglyceride (TG) levels and non-alcoholic fatty liver.Methods Serum levels of TC,TG, TSH,TT_3 and TT_4 were determined in 1 602 subjects which were divided into groups by sex and age (20-39,40- 59 and≥60 years).Fatty liver was diagnosed by type B ultrasonography.Restults ( 1 ) Prevalence of subclinical hypothyroidism was 6.6% in this population.(2) The mean levels of serum TC and TG in subclinical hypothyroidism group and normal group showed no significant difference ( both P＞0.05 ).(3) On the whole,the prevalences of subclinical hypothyroidism in hypercholesterolemia group and normal cholesterolemia group showed significant difference (P＜0.01 ).(4) In the three age groups of male and few.ale examinees,the prevalences of subclinical hypothyroidism in hypercholesterulemla group and normal cholesterolemia group showed no significant difference ( all P＞0.05 ).In the multiple regression analysis,TSH level was not related with raised TC level.(5) In the three age groups of male,there was no significant difference between the prevalences of subclinical hypothyroidism in hypertriglyceridemla group and normal triglyceridemia group ( all P＞0.05 ).In female,expect for the elderly group (＞60 years old ),the prevalence of subclinical hypothyroidism was higher in hypertriglyceridemia group than that in normal triglyceridemia.However,in the multiple regression analysis, increased TSH level was positively associated with increased serum TG level ( OR = 1.072,P=0.013 and OR = 1.102,P = 0.03 ).(6) The prevalence of subclinical hypothyroidism in non-alcobolic fatty liver group and normal group showed no significant difference ( P＞0.05 ).In the multiple regression analysis,TSH level was not the independent risk factor of non-alcoholic fatty liver (P＞0.05 ).Conclusion Subclinical hypothyroidism is not asseciated with serum TC level but positively associated with serum TG level.Subclinical hypothyroidism does not apparently increase the prevalence of non-alcoholic fatty liver.

Acupuncture Therapy ; Adult ; Aged ; Anti-Bacterial Agents ; therapeutic use ; Chronic Disease ; therapy ; Combined Modality Therapy ; Female ; Humans ; Male ; Middle Aged ; Mycoplasma ; physiology ; Mycoplasma Infections ; complications ; drug therapy ; Prostatitis ; drug therapy ; etiology ; therapy ; Young Adult

Objective To understand the schistosomiasis prevention knowledge of middle school students from areas with dif-ferent endemic levels in Hubei Province. Methods The schistosomiasis endemic regions were divided into transmission con-trolled areas and endemic controlled areas in Hubei Province,middle school students from different types of areas were selected through stratified randomized cluster sampling and were investigated by questionnaire. Results A total of 3 204 students were se-lected and investigated. The awareness rate of schistosomiasis prevention and control knowledge among the students ranged from 65.1%-90.3%. Overall,the students from endemic controlled areas had higher knowledge rates of all the items than those from transmission controlled areas(all P<0.05). The middle school students acquired schistosomiasis prevention knowledge mainly from the teachers,parents,doctors and schistosomiasis staff. Conclusion Health education to students should adopt different ways targeting at different endemic levels in the future.

AIM: To study the changes in anterior chamber angle after phacoemulsification and foldable IOL implantation with ultrasound biomicroscopy.METHODS: Small-incision phacoemulsification and foldable IOL implantation were performed in 50 eyes of 46 senior patients, and the changes of anterior chamber angle were determined quantitatively by using ultrasound biomicroscopy before and one month after the surgery.RESULTS: In all patients, the angle was widened significantly one month after the surgery (P＜0.01). The measurements of TIA500 ( trabecular-iris angle at 500μm from the scleral spur) , AOD250 (angle-opening distance at 250μm from the scleral spur) and AOD500 (angle-opening distance at 500μm from the scleral spur) increased significantly after the operation ( P＜ 0.01). The mean post/pre-operative TIA500ratio, AOD250 ratio and AOD500 ratio were 1.65 (1.12-4.91),1.81 (1.06-2.67) and 1.65 (1.01-2.76), respectively. A significant negative correlation existed between preoperative and postoperative data.CONCLUSION: Small-incision cataract surgery deepens the anterior chamber and widens anterior chamber angle significantly in senior patients. The narrower the preoperative angle, the higher ratio of post/preoperative ratio found.

BACKGROUND:It has been recently indicated that nervous factors are able to adjust and dominate bone fracture healing. Type Ⅰ collagen is a major factor to promote the differentiation of osteoblasts and enhance the adhesion of osteoblasts; while, it is also a matrix protein for composing bone framework. Type Ⅱ collagen is derived from chondrocytes. OBJECTIVE: To study changing law of type Ⅰ and Ⅱ collagen expression during denervated bone fracture healing. DESIGN, TIME AND SETTING: Randomized controlled anima study was performed at the Animal Laboratory and Cell Biology Laboratory, the Second Military Medical University of Chinese PLA between May and December 2005. MATERIALS: Forty 3-month-year healthy male SD rats were randomly divided into fracture group (tibial fracture alone) and combination group (spinal cord injury combined with tibial fracture), with 20 rats at each group. METHODS: A φ 0.8 mm Kirschner wire was inserted into anterior border of left tibial plateau to establish tibial fracture models in the fracture group. A 0.3-cm spinal cord transection was cut at T10 segment to establish tibial fracture models with entire spinal cord injury. MAIN OUTCOME MEASRUES: Type Ⅰ and Ⅱ collagen protein expressions of callus were detected using Western blot technique in week 1, 2, 4, and 5 post-injury. RESULTS: One week after injury, type Ⅰ and Ⅱ collagen was represented in callus in the two groups, while the expressions in the combination group were significantly higher than fracture group (P<0.05); two weeks after injury, type Ⅱ collagen expression reached at the peak in the combination group, and the expression was significantly higher than the fracture group (P<0.05); four weeks after injury, type Ⅰ collagen expression reached at the peak in the fracture group, and the expression was significantly higher than the combination group (P<0.05), while type Ⅱ collagen still highly expressed in the combination group; five weeks after injury, type Ⅰ and Ⅱ collagen expressions were decreased in the two groups. CONCLUSION: Secretory law of type Ⅰ and Ⅱ collagen during denervated bone fracture healing is similar to normal bone fracture healing; however, the differences at time points, in particular expression at peak, are remarkable between them.

BACKGROUND: It is demonstrated that bone marrow stem cells (BMSCs) can generate neurosphere structures, which is similar to cloning sphere of neuron-specific enolase (NSE), in a specially induced system in vitro; therefore, BMSCs draw more and more attention as seed cells to repair central nerve injury.OBJECTIVE: To investigate the differentiation from BMSCs into neuron-like calls induced by fetal spinal cord tissue.DESIGN: Observational study.SETTING: Department of Spine Surgery, Second People's Hospital of Shenzhen.MATERIALS: SD rats (16 pregnant days old and 2 months old) were provided by Animal Center, Tongji Medical College,Huazhong University of Science and Technology. Single antibody of NSE, multi-antibody of glial fibrillary acidic protein (GFAP) and single antibody of neurofilament (NF200) were provided by Wuhan Boster Company.METHODS: The experiment was carried out in Immune Opening Laboratory and Central Laboratory, Basic Medical Department, Tongji Medical College, Huazhong University of Science and Technology in September 2006. Bones of lower extremities of rats were collected to centrifuge BMSCs. Fetal spinal cord tissue homogenate was extracted from 16 pregnant days old rats to make inducing solution and induce differentiation of BMSCs. Otherwise, embryo muscle tissue was used to make muscle tissue homogenate as the same way so as to regard as the controls.MAIN OUTCOME MEASURES: BMSCs underwent morphological observation after induction; in addition, anti-NSE, NF200 and anti-GFAP were used to label neurons and astrocytes, respectively. Ten non-overlapping sights were randomly selected from positive reactive-induced cells after immunohistochemical staining under optic microscope to calculate ratio of positive cells of NSE and NF200 counting for total numbers of cells.RESULTS: ① Morphological changes of BMSCs after induction: During early induction, optic microscope indicated that soma of partial cells rebounded; whose apophysis was long and thin; apophysis of differentiated cells grew gradually and intercrossed each other. It was similar to nerve cells and some branches were similar to dendrite branches. However,morphological changes of cells in the control group were not obvious. ② Expression of relevant antigens differentiated from BMSCs into neuron-like cells at one week after induction: Most cells in spinal cord homogenate group expressed as positive NSE and NF200; a few of cells expressed as GFAP. While, positive staining of nerve cell antibody was not observed in the control group; meanwhile, positive reaction of nerve cell antigen was not observed in the control group,too. Immunohistochemistry examination demonstrated that positive rates of NSE and NF200 expressions were (68±1.7)%and (76.2±2.9)%, respectively.CONCLUSION: Fetal spinal cord tissue homogenate can induce differentiation from BMSCs into neuron-like cells.