Ankle Injuries ; surgery ; Evidence-Based Medicine ; methods ; Foot Injuries ; surgery ; Humans

In the complications of dental implant treatment, the mechanical complications, such as central screw breakage, are often complex and serious. This article analyzes factors that affect the loosening of the central screw. Understanding relevant risk factors can prompt doctors to take corresponding strategies to reduce the possibility of complications in clinical operations. After encountering broken cases, this paper also gives some ideas and methods of treatment, and finally summarizes clinical suggestions for preventing the central screw fracture.

Objective: To explore the monomer compounds in the seeds of Momrodica cochinchinensis and to study the differentiation of mouse melanoma B16 cells induced by p-hydroxylcinnamaldehyde (PHC). Methods: After being treated by five kinds of compounds [PHC, coniferylaldehyde, p-hydroxylbenzaldehyde (PHB), 3-O-methoxyaniline-p-hydroxylbenzaldehyde, and ligballinol] for 48 h, the inhibitory rate of B16 cell growth was measured by sulforhadamine B (SRB); Morphological changes of B16 cells induced by PHC for 24, 48, and 72 h were observed by Giemsa staining and phase contrast microscope; Melanin content and the activity of tyrosinase in B16 cells 48 h after the administration were assessed by colorimeter. The expression of tyrosinase mRNA was detected by RT-PCR. Results: All the five compounds had the inhibitory effect on the B16 cells. Among them, PHC showed the strongest effect in the dose-and time-dependent manner; PHC could induce B16 cells dendritic growth 48 h after the treatment, and the morphological changes were typically differentiated; PHC also increased the melanin production and the activity of tyrosinase. There was a significant difference compared to the control group (P < 0.05). After treated by PHC for 6, 12, and 24 h, the expression levels of tyrosinase mRNA, tyrosinase 1 mRNA, and tyrosinase 2 mRNA were significantly increased (P < 0.01) in a time-dependent manner. Conclusion: PHC could inhibit the proliferation of B16 cells and the mechanism is related to the differentiation of B16 cells.

No abstract available.
Stomach Neoplasms*

Choristoma ; Ear Diseases ; Female ; Glioma ; Humans ; Mastoid ; Middle Aged

AIM: To report the clinical manifestations of localized peripapillary detachment in pathologic myopia and to evaluate its underlying associations and causes.METHODS: From December 2002 to January 2004, 10eyes from 7 patients with high myopia were identified to have localized peripapillary detachment by optical coherent tomography (OCT). The features were described together with the fundus fluorescein angiography, indocyanine green angiography and multifocal electroretinogram.RESULTS: Localised peripapillary detachments did not cause any symptoms by themselves and all the lesions were recognized because of other ocular problems. The areas of peripapillary detachment were all located within the posterior staphyloma. In the 5 eyes with type 1 staphyloma, the locations of detachment were all in the nasal half of the peripapillary area. In the other 5 eyes with type 2 and 3 staphyloma, the locations of detachment were all in the non-nasal peripapillary area. The difference between these two groups was statistically significant (Fisher's exact test, ,P= 0.01).CONCLUSION: Peripapillary detachment is probably a benign complication of posterior staphyloma in pathologic myopia. The site of peripapillary detachment is affected by the location of staphyloma and OCT is important in making the diagnosis.

AIM: To compare the effect of treating cataract by sodium hyaluronate injection and lens - loop nucleus extraction of small incision cataract excision and explore more suitable method to promote the use of surgery in primary hospital.
METHODS: All 146 cataract patients ( 166 eyes ) were allocated to two groups in random: the control group 78 patients ( 84 eyes ) received conventional lens loop for extracapsular cataract extraction;the experiment group 68 patients (82 eyes) underwent nucleus extraction in small incision with sodium hyaluronate injection for extracapsular cataract extraction. Postoperative visual acuity and intraoperative and postoperative complications were compared between two groups.
RESULTS: Incidence of posterior capsule rupture difference was statistically significant (P<0. 05) in small incision nucleus extraction with sodium hyaluronate injection compared with conventional lens loop for extracapsular cataract extraction. And there was no significant difference ( P> 0. 05 ) in postoperative visual acuity, astigmatism degree and postoperative complications compared with those of pre-operation.
CONCLUSION: Compared with the lens loop nucleus extraction, sodium hyaluronate injection for extracapsular cataract extraction can effectively protect the posterior lens capsule and can be promoted in small incision cataract surgery.

Objective To investigate the reason for hidden hemorrhage of hip fracture in elder.Methods All of 94 elder patients,who were diagnosed with intertrochanteric fracture or femoral neck fracture and received treatment in our department from October,2013 to September,2015,were included in this study.The time between injuries to admission was less than 4 hours of the two groups of patients.And the patients whose hemoglobin was less than 100 g/L were removed when admission,in order to avoid the interference of primary anemia.All information,including height,weight,and the value of hemoglobin (Hb) and hematocrit (Hct),were collected.Blood tests were performed immediately after admission,at daily morning preoperatively,and at the morning of the day of surgery.Preoperative blood loss (hidden hemorrhage) was recorded.With respect to blood loss of hidden hemorrhage,statistical analysis was performed at different times (immediate time after admission,and day 1,2,and 3 postoperatively)in the group of intertrochanteric fracture or in the group of femoral neck fracture,and subsequently performed between the two groups.Results The blood loss in the group of intertrochanteric fracture was 196.3 ml,310.1 ml and 418.3 ml in the 1st day,the 2nd day and the third day after admission.There was a significant difference among different time with respect to blood loss.The blood loss was 39.8 ml,65.7 ml and 82.9 ml in the 1st day,the 2nd day and the third day after admission in the group of femoral neck fracture.There was also a significant difference among different time with respect to blood loss.In experimental group,mean blood loss was 418.3 ml and mean Hb decreased by 23.7 g/L at day 3 postoperatively.In control group,mean blood loss was 82.9 ml and mean Hb decreased by 6.7 g/L at day 3 postoperatively.A significant difference was observed between the two groups.The blood loss in patients with intertrochanteric fracture was higher than that in patients with femoral neck fracture.Conclusion The blood loss was gradually increased in elder patients with intertrochanteric fracture over time.There was a significant difference in different time with respect to blood loss.Moreover,a significant difference was found in blood loss of hidden hemorrhage between intertrochanteric fracture and femoral neck fracture.

Adult ; Aged ; Copper ; Hearing Loss, Noise-Induced ; epidemiology ; Humans ; Male ; Middle Aged ; Mining ; Occupational Diseases ; epidemiology

Clavicle ; injuries ; Fracture Fixation ; methods ; Fractures, Bone ; therapy ; Humans