Objective To investigate the effect of open nursing management on hospital rehabilitation of patients with schizophrenia.MethodsThe outcome of group A,which included 113 patients in open nursing management,and group B,which included 141 patients in close nursing management at the same time,were evaluated with the Brief Psychiatric Rating Scale(BPRS)and the Nurses' Observation Scale for Impatient Evaluation(NOSIE),etc.ResultsThe difference between the two groups in such as the time of symptoms improved,drugs administration,effective rates were not significant(P>0.05).The compliance of medicine,social capability and personal sanitation of group A were improved compared with those in group B(P<0.05),while the time stay in hospital obviously shortened(P<0.01).ConclusionThe open nursing management is helpful to improve the rehabilitation and shorten the time stay in hospital of patients with schizophrenia.

Objective To explore the therapic effect of the combination of endovascular embolization and clinical hormone in treatment of Kasabach-Merritt phenomenon (KMP),and analyze the advantages.Methods Six cases with KMP from May 2010 to June 2012 were retrospectively analyzed.All the patients underwent large dose hormone shock therapy after admission for 7-10 d.Subsequently,selective endovascular embolization was performed using Seldinger technique under general anesthesia Then,the hormone therapy was continued for 2 weeks after embolization.The platelet count and the effect were recorded.If the area of the tumor reduction is less than 50％,3-4 courses of local hardening treatment was conducted for the residual tumor.The local treatment used multipoint puncturing of the tumor and injection drugs under X-ray fluoroscopic monitoring until the tension of local vascular increased.Results On DSA,the lesions of all the 6 cases showed rich blood supply with a large number of hybrid distribution of tumor blood vessels.The lesions disappeared in 4 cases after 1-2 weeks combination therapy and no recurrence for 0.5-1.0 year follow-up.Two cases whose tumor reduced less than 50％ after combination therapy received local hardening treatment,and faded after 3-4 courses.The number of platelet for all patients kept normal and the spirit of the patients showed great improvement,the bleeding tendency and local soft tissue swelling was in remission.Subcutaneous blood stasis and petechiae disappeared.There were no serious adverse reaction and complications.Conclusion Combination therapy with endovascular embolization and clinical hormone for Kasabach-Merritt phenomenon has a good curative effect.

Objective · To explore the biological characteristics of platelet-rich fibrin (PRF) and its effects on proliferation and differentiation of adipose derived stem cells (ADSCs). Methods · The whole blood was collected from the forelimb vein of healthy beagles to prepare the PRF membrane, which were observed with optical microscope and scanning electron microscope. ADSCs were collected from the inguinaladipose tissue and were isolated and cultured. Identification of multi-directionaldifferentiation potential was performed. ADSCs were assigned to the PRF group and the control group, the former was treated with PRF in vitro. Cell proliferation wasmeasured with CCK-8. Osteogenesis induction was performed for two groups and the expression of genes associated with osteogenesis, including osteocalcin (OCN), osteopontin (OPN) and collagen I (Col- Ⅰ ), was measured with RT-PCR before induction and 4 and 7 days after induction. The alkaline phosphatase (ALP) activitywas measured 7 days after induction. Results · PRF is a milk white fibrin glue with elasticity and toughness. PRF can form loose and porous three dimensional network structure, which harbors lots of platelets and leucocytes. The cell proliferation activity was significantly higher in the PRF group than in the control group. After osteogenesis induction, the ALP activity and the mRNA levels of OCN, OPN, and Col- Ⅰ were significantly increased. Conclusion · PRF is a fibrin glue with three dimension network structure and contains lots of platelets, which can slowly release growth factors. PRF can promote the proliferation and osteogenic differentiation of ADSCs.

ObjectiveTo study the characteristic findings on MRI in children surviving premature delivery with cerebral palsy.MethodsThe clinical data and MR imaging in 16 cases surviving premature delivery with cerebral palsy was retrospectively analyzed, compared with 16 healthy and age-matched controls.Results16 cases were final diagnosed as cerebral palsy with spstic diplegia. MRI features of children surviving premature delivery with cerebral palsy included abnormally high signal intensity in the periventricula white matter on T2WI, marked loss of periventricular deep white matter, ventriculomegaly with or without irregular ventricular outline and atrophy of the corpus callossum. These features were consistent with periventricular leukomalacia(PVL).ConclusionPVL was the characteristic findings on MRI in children surviving premature delivery with cerebral palsy. The characteristic findings of PVL was useful in determining the etiology and type of cerebral palsy in children.

Objective:To investigate the effect of concentrated growth factor (CGF) on proliferation and differentiation in Beagle adipose-derived stem cells (ADSCs).Methods:ADSCs were isolated from adipose tissue of healthy Beagles and cultured.The multidirectional differentiation potential of ADSCs was identified.The ADSCs were assigned to a CGF group and a control group.The rate of proliferation was analyzed by CCK-8 assay.The osteogenic differentiation capability was detected by ALP staining after the osteoinduction.Bone formationrelated gene expression was detected by RT-PCR.Results:CGF promoted the proliferation of ADSCs in vitro.ADSCs in the CGF group showed higher level of ALP activity than that in the control group (P＜0.05).CGF stimulated the expression of the genes associated with osteogenesis,such as Col-I and Runx2.Conclusion:CGF can promote the proliferation and osteogenic differentiation in ADSCs in vitro.

OBJECTIVE: To analyze the phenotype and genetic variant in a pedigree affected with inherited protein C (PC) deficiency. METHODS: The proband and her family members (7 individuals from 3 generations) were tested for plasma protein C activity (PC:A), protein C antigen (PC:Ag) content and other coagulation indicators. All of the 9 exons and flanking sequences of the proband's PROC gene were amplified by PCR and sequenced. Suspected variants were verified by reverse sequencing of the proband and her family members. Bioinformatic software was used to analyze the pathogenicity and conservation of the variant site. Swiss-PdbViewer was used to analyze the three-dimensional model and the interaction with the mutant amino acid. RESULTS: The PC:A and PC:Ag of the proband, her grandmother, father and elder brother were decreased to 55%, 52%, 48%, 51% and 53%, 55%, 50%, 56%, respectively. Genetic analysis showed that the four individuals have all carried heterozygous c.1318C>T (p.Arg398Cys) missense mutation in exon 9 of the PROC gene. The score of MutationTaster was 0.991, PROVEAN was -3.72, and FATHMM was -2.49, all predicted it to be a harmful mutation. Phylogenetic analysis also showed that Arg398 was weakly conservative among homologous species. Protein model analysis showed that, in the wild type, Arg398 can form a hydrogen bond with Glu341 and Lys395 respectively, when it was mutated to Cys398, the hydrogen bond with Glu341 disappears and an additional hydrogen bond was formed with Lys395, which has changed the spatial structure of the protein. CONCLUSION The heterozygous missense mutation c.1318C>T (p.Arg398Cys) of the PROC gene probably underlay the decreased PC:A and PC:Ag in this pedigree.
Aged ; Female ; Heterozygote ; Humans ; Male ; Mutation ; Pedigree ; Phenotype ; Phylogeny ; Protein C Deficiency/genetics*

Objective:To investigate the characteristics and management of the emergency patients with orthopaedic trauma during COVID-19 epidemic.Methods:A retrospective analysis was performed of the 32 emergency inpatients at Department of Orthopedics, Nanfang Hospital from January 20 to February 26, 2020. They were 23 males and 9 females, aged from 4 to 66 years (mean, 35 years). The causes for their injury included traffic accident in 14 cases, sharp cutting (e.g. by a kitchen knife) in 6 cases, heavy object crushing in one, machine crushing in one, fall in 2, and machine twisting in one. High energy injury occurred in 13 cases and low-energy injury in 9 cases. The injury involved the upper limb in 7 cases and the lower limb in 15 cases. Grade Ⅱ protection was adopted during the diagnosis and treatment for the one emergency patient who had not undergone nucleic acid screening for 2019-nCoV while grade Ⅰ protection for the other 21 patients. 2019-nCoV infection was recorded in the patients and medical staff as well. The measures and experience were reviewed in the management of orthopaedic emergencies during the COVID-19 epidemic.Results:During the diagnosis and treatment of 22 emergency patients with orthopaedic trauma, none of the medical staff or patients was infected with COVID-19. As the one emergency patient was treated as a suspected case and protected by grade Ⅱ measures, COVID-19 infection was ruled out after surgery.Conclusions:During the COVID-19 epidemic, front-line medical staff dealing with traumatic emergencies faced a higher risk of infection. The emergency orthopaedic traumas were mainly caused by a traffic accident or a machine, and those in the elderly patients by a sharp cutting or a fall. The incidence of COVID-19 infection could be reduced by COVID-19 screening before admission, appropriate anesthesia and surgical methods, protection of perioperative medical staff, postoperative wards care and psychological counseling.

Japan is one of the main trading partners for the import and export of experimental animals in China,and its quarantine and supervision policies for the import and export of experimental animals are very detailed and strict.This article takes experimental dogs,cats,and monkeys as examples to provide an in-depth analysis of the quarantine and supervision policies for the main experimental animals exported to Japan.At the same time,it reflects on the current laws and regulations,import and export management method,standards,biosafety,breeding and management status,as well as the import and export business status of experimental animals in China.Suggestions are provided in improving the laws and regulations,import and export management method,ensuring national biosafety,improving the management level of experimental animal breeding,and promoting the import and export trade of experimental animals,in order to provide reference for comprehensively improving the production,use,and breeding management level of experimental animals in China and strengthening the trade between China and Japan.

Objective: The purpose of this study was to explore the surgery-first approach in sequential combined orthodontic-orthognathic treatment to shorten total treatment duration and improve the clinical outcome. Methods: This study included 185 patients with Angle classⅢ malocclusion. The patients were divided into 3 different types according to cephalometry analyses and facial features. ①Type Ⅰ: mandibular prognathism or asymmetry mandibular prognathism; ②Type Ⅱ: mandibular prognathism and maxillary retrusion; ③ Type Ⅲ: mild Angle′s Class Ⅲ malocclusion, cross bite in anterior teeth, or normal overlap and overbite relation with midfacial hypoplasia. All of patients received surgery first approach therapy. The surgical procedures were chosen according to different malformation types. Type Ⅰ was treated with the sagittal split ramus osteotomy (SSRO). Type Ⅱ was treated by Le Fort Ⅰmaxillary osteotomy combined with SSRO. Type Ⅲ underwent anterior subapical osteotomy combined pyriform aperture augmentation with biomaterials as well as maxillary anterior orthodontics. All patients received postoperative rapid orthodontic treatment for 6-12 month after 2 weeks of operation. Using the straight arch wire techniques and the class Ⅲ intermaxillary traction, we removed the overcrowding upper and lower teeth, the compensatory axial tilt of teeth, and the deviation of the dental arch and maintained the neutral relationship of the molar. The mandible Hawley retaining devices were used during the maintaining stage. Results: The cases in study acquired satisfactory clinical outcome, which included the shortened overall treatment duration, the significantly improved facial features, the corrected occlusion relationship, and the restored function of mastication and temporomandibular joint. There were some complications as follows: intraoperative fracture (6 cases, 3.24%), the inferior alveolar nerve bundle injury (2 cases, 1.1%), and temporary open-bite that diminished by inter-maxillary elastic distraction one month after operation (19 cases, 10%). All cases in this study accepted postoperative orthodontic treatment. Follow-up time ranged from 6 months to 5 years. The cephalometric analysis results of 126 cases who had complete image data and over 6 months of follow-up showed that hard and soft tissue indexes were restored to normal range after combined orthognathic-orthodontic treatment. The stability of the maxillary and occlusive relationship of SFA(surgery-first approach) was similar to that of the COS(conventional orthodontics-first system) [relapse ratio=(T2-T1)/(T1-T0)×100%]. Over six months of follow-up , SNB and ANB showed that the average relapse ratio were 22% and 19.8%, whereas the relapse angle are less than 2°. Conclusions The Surgery-first approach could be used to treat most patients with Angle skeletal Class Ⅲ malocclusion, but the indications and the surgical procedures should be noticed and chosen.

Objective : To evaluate the vertical distance between the maxillary first molars (MFMs) and the maxillary sinus floor (MSF) and its interrelationship with sex, age, and vertical facial pattern in skeletal ClassⅡ patients to provide a reference for clinical orthodontic treatment. Methods: Sixty teenagers and sixty adults with skeletal Class Ⅱ malocclusion who met the inclusion criteria were selected to evaluate the vertical relationship between the MFMs and the MSF on cone-beam CT (CBCT) images. The vertical distance between the roots of the MFMs and the MSF was measured. Statistical analysis was used to assess differences between patients by sex, age, and vertical facial pattern. Results: The contact percent of the roots of MFMs and MSF was 85% and 56% in skeletal Class Ⅱ teenagers and adults, respectively. The contact percent and penetration percent of the roots with MSF were higher in teenagers than in adults（P<0.05）. The penetration percent of the high-angle (HA) and the normal-angle(NA) groups was 34.1% and 36.6% respectively, which was significantly higher than that in the low-angle (LA) group(20.8%)（P<0.05）. The difference between the distance of the bilateral MFMs and the MSF was not significant in skeletal Class Ⅱ patients (P>0.05); No significant difference was found between different sexes of skeletal Class Ⅱ patients when comparing the distance of the MFMs and the MSF (P>0.05). The MFMs of skeletal Class Ⅱ teenagers were closer to the MSF than those of adults (P<0.05). In the adult group, the distance was not significantly different in different vertical facial patterns (P>0.05). In the teenager group, the MFMs were more closely related to the MSF in the NA and HA groups than in the LA group. Among them, the difference between the mesiobuccal roots and distalbuccal roots was significantly different (P<0.05). There was no significant difference between the groups of the palatal roots (P>0.05). Conclusion The MFMs were closer to the MSF in skeletal Class Ⅱ teenagers than in adults. The distance between the MFMs and MSF was associated with the vertical facial pattern in skeletal Class Ⅱ teenagers, while it was not associated with the vertical facial pattern in adult patients.