[Objective]To explore the feasibility and outcome of posterior single open-door and pedicle screw in treating canal stenosis and instability of cervical vertebrae at one time.[Method]The preoperative radiographs of 15 patients were measured and were diagnosed to be developmental spinal canal stenosis and instability of cervical vertebrae.MRI showed the spinal cords were compressed obviously.Posterior C_(3~7) single open-door decompression and canal-plasty was adopted.Self-designed pedicle screws and intertransverse fusion were used in the unstable segments.[Result]Complications were not found after the operation.The postoperative radiographs showed that the screws were in the right places.The average follow-up time was 13 months,ranging from 7 to 18 months.The short-term radiographs showed firmly fixed screws.[Conclusion]It is a simple and reliable method to treat canal stenosis and instability of cervical vertebrae at one time with posterior single open-door and pedicle screw.Anterior and posterior operations have been avoided and the short-term outcome is satisfied.

The imbalance between histone acetylation and histone deacetylation can lead to the inactivation of suppressor genes and the activation of oncogenes by influencing transcription. Based on this, researchers found that HDAC inhibitors can induce prostate cancer cells growth arrest, differentiation and apoptosis. This review summarizes the advance research of histone deacetylase inhibitors in treatment of prostate cancer.

273 spine apparatus were observed under electron microscope. The results were as follows: 1.The flat-type sac of 5 types of the sac which constituted the spine apparatus covered the majority. Most of them were arranged parallelly and a few dispersively. The horseshoe or braid shaped arrangement was also seen in some cases. 2.The number of the sac varied from 3 to 6 in most of the cases, and a few over 10. Sometimes 2 or 3 spine apparatus can be seen within a single dendritic spine. 3.The spine apparatus often locates in the dendritic spine. In some cases the spine apparatus can be seen within the dendrites or in the juncture of dendritic trunk and dendritic spine 4.The morphological structure of the dense bands is comparatively complex. Most of the bends are narrow, some are broad, fine granular or mist-like in shape. The dense bends are located in between the adjacent sacs mostly and in few cases on one side of the spine apparatus. In some cases, one end of the dense band is fused with the sac.

OBJECTIVE: To investigate the effects of arc-track private lock pedicle orthopedic fixation system Ⅱ (ALPF Ⅱ) on treatment of spinal diseases. METHODS: A total of 86 patients with spinal diseases were treated using self-made ALPF in the Wendeng Orthopaedic Hospital and were included in this study. Of these patients, 14 suffered from cervical spinal stenosis complicated by cervical vertebral destabilization, 29 from thoracolumbar fractures and dislocations, 15 from lumbar spinal stenosis complicated by lumbar vertebral destabilization, 2 from lumbar spondylolisthesis, 8 from spinal tuberculosis, 6 from ankylosing spondylitis, 9 from idiopathic scoliosis, and 3 from congenital scoliosis. According to conditions, different therapeutic regimens were selected. Postoperatively, regular follow-up was performed to observe vertebral healing, intervertebral height, spinal column sequence, and neurological function recovery. RESULTS: All patients were followed up for 9-30 months (average 12 months). The improvement rate of neurological function, spinal mobility, back pain, and melosalgia was 94.1%, 65.9%, 92.1%, and 87.4%, respectively. The postoperative anterior and posterior vertebral heights were apparently recovered, and kyphotic angle was well corrected. No screw, rod loosening or breakage was found. CONCLUSION: Self-made ALPF Ⅱ is an internal fixation method for treatment of spinal diseases. It provides good reduction, reliable curative effects, less complications, and no biocompatibilities.

OBJECTIVE To explore the sterilizing effect of low-temperature vacuum formaldehyde.METHODS The test group used the own-produced 140 L low-temperature vacuum formaldehyde sterilizer for sterilization;and the control group used "Xinhua" hydrogen peroxide plasma sterilizer.Sterilization effect of the two groups was monitored by biological indicator.RESULTS After 50 sterilization procedures run in test group,the biological indicators the bacterial were all killed,the qualification rate of sterilization was 100%.But after 30 sterilization procedures run in control group,only 8 procedures were qualified,the qualification rate of sterilization was 26%.The sterilizing effect of the two groups was significantly different(P

2-Amino-5-phosphonovalerate ; pharmacology ; Animals ; Animals, Newborn ; Cells, Cultured ; Cerebral Cortex ; cytology ; physiology ; Hydrogen-Ion Concentration ; Hypothermia, Induced ; Neurons ; drug effects ; Nimodipine ; pharmacology ; Protons ; Random Allocation ; Rats ; Rats, Wistar

Objective: To observe the changes of retinal microstructure in lamellar macular hole (LMH) after vitrectomy. Methods: A retrospective clinical observational study. Forty patients (41 eyes) with LMH and received vitrectomy in Ophthalmology Department of Peking University People’s Hospital from January 2014 to September 2018 were included in this study. Among them, 14 patients (15 eyes) were males and 26 patients (26 eyes) were females, with an average age of 67.8±8.6 years. There were 37 eyes with a lens and 4 eyes with an IOL. There were 29 eyes with LMH of tractional type, 7 eyes of degenerative type, and 5 eyes of mixed type. All patients underwent BCVA and OCT examinations. The BCVA examination was performed using the international standard visual acuity chart, which was converted into logMAR visual acuity. The average logMAR BCVA was 0.57±0.27; the mean macular retinal thickness (CRT) was 192.3±108.9 μm, the mean macular thickness (MRT) was 427.5±110.2 μm. Among the 29 eyes of tractional type, there were 17 eyes with retinal cavity, 8 eyes with macular retinoschisis, and 3 eyes with incomplete ellipsoid zone. Among the 7 eyes of degenerative type, there were 5 eyes with lamellar hole-associated epiretinal proliferation (LHEP), 5 eyes with retinal cavity, and 5 eyes with incomplete ellipsoid zone. Among the 5 eyes of mixed type, 2 eyes with LHEP, 1 eye with macular epiretinal membrane, and 4 eyes with incomplete ellipsoid zone. The average follow-up time after surgery was 12.8±5.2 months. Among them, 10 eyes were followed up for equal or greater than 24 months. After the surgery, the same equipment and method before the surgery were used for relevant examination. The changes of BCVA, CRT, and MRT before and after surgery were observed. Continuous variables were compared by t test. Results: At the last follow-up, the mean logMAR BCVA was 0.37±0.26. Compared with before surgery, the difference was statistically significant (t=5.98, P<0.01). The mean CRT and MRT were (245.2±90.8) and (347.0±46.7) μm, respectively. Compared with before surgery, the differences were statistically significant (t=-2.49, -5.24; P<0.05, <0.01). CRT and MRT changed greatly within 6 months after surgery, and then tended to be gentle. Among the 3 eyes with incomplete ellipsoid zone of tractional type before surgery, ellipsoid zone recovered in 2 eyes and partially recovered in 1 eye. Among the 17 eyes with retinal cavity and 8 eyes with macular retinoschisis before surgery, there were still 4 eyes with retinal cavity, but all the retinoschisis were disappeared. Among the 5 eyes with retinal cavity of degenerative type before surgery, there were still 2 eyes with retinal cavity and all the eyes with incomplete ellipsoid zone. Among 10 eyes with a follow-up time of equal or greater than 24 months, the macular ganglion cell complex partially atrophied in 6 eyes, and the nerve fiber layer separated in 2 eyes. There was no full-thickness macular hole after surgery. Conclusion For most LMH patients, vitrectomy can effectively improve the visual acuity and promote the recovery of retinal microstructure.