Background Vancomycin has been increasingly recommended for the management of endophthalmitis,but few research report has been published about the pharmacokinetics of intravitreal vancomycin up to now.It is necessary to have an exact method to measure the concentration of vancomyein in animal eyes after intravitreal injection.Objective This study was to observe and compare the phamacokinetical process of vancomycin in serum,vitreous and aqueous humor between normal and infected rabbit eyes.Methods Seventy-two healthy adult rabbits were randomly divided into normal group and infected group and 36 rabbits for each.The animal models of endophthalmitis were established by intravitreal inoculation of 2000 CFU/ml staphylococcus aureus in the right eyes of rabbits in the infected group.Once endophthalmitis developed,0.1 ml vancomycin ( 10 g/L) solution was injected into the vitreous of every rabbit.The peripheral blood,vitreous and aqueous humor samples were respectively collected in 4 rabbits for each group at 0.5,2,4,6,12,24,48,72 and 84 hours after injection for detection of vancomycin concentration by high performance liquid chromatography(HPLC-UV).3p97 software was used to create fit parameters of pharmacokinetics.This experiment followed the Regulations for the Administration of Affair Concerning Experimental Animals by State Science and Technology Commission (Version 1988).Results The accuracy of HPLC fitted the detecting request of biological specimen.The concentration-time data of vancomycin in normal rabbit aqueous humor and vitreous was subject to two-compartment model.The pharmacokinetic parameters were separately as following:Cmax was 50.16 mg/L and 751.42 mg/L,t1/2was 51.04 hours and 53.21 hours.The concentration-time data of vancomycin in infected rabbit aqueous humor and vitreous was subject to one-compartment model.The pharmacokinetic parameters were separately as following:Cmaxwas 24.94 mg/L and 687.66 mg/L,t1/2was 11.42 hours and 12.91 hours.The concentration of vancomycin in serum was much lower and almost undectable.The concentration of vancomycin in vitreous was gradually reduced as the prolong of time after injection in both normal group and infected group,but a obvious decline after increased level was scen in aqueous humor.Compared with normal group,the concentrations of vancomycin in both vitreous and aqueous humor were reduced at various time points(P＜0.05,P＜0.01 ).Conclusions HPLC is simple,highly sensitive and specific for the pharmacokinetic analysis of vancomycon.These results indicate that pharmacokinetic parameters of vancomycin alter in pathological condition,which is helpful for us to establish the better treatment guidelines for endophthalmitis.

OBJECTIVE: To understand the assessment on the criminal responsibility of drug-induced mental disorders and judicial experts' opinions. METHODS: The judicial experts from institutes of forensic psychiatry in Shanghai were selected. They were asked to finish a self-made questionnaire of assessment on the criminal responsibility of drug-induced mental disorders by letters and visits. RESULTS: Most of experts knew the special regulation, "not suitable for evaluation" towards the criminal responsibility of drug-induced mental disorders of the guideline promulgated by Ministry of Justice. Before and after the guideline was issued, no expert made a no-responsibility opinion in such cases. After the guideline was issued, some experts made a full-responsibility or limited-responsibility opinion in such cases. There was a little disagreement among the experts in the case that the crime was unrelated with mental symptoms or the criminals used drugs even though he knew it could induced insanity. But there were still many obvious disagreements among experts in the case that crime was related to such symptoms and person was no ability to debate. Most experts agreed to settle the disagreements with improved legislative perfection. CONCLUSION Most experts are not strictly complying with the assessment guidelines during their practice, and there is still an obvious disagreement towards the criminal responsibility of drug-induced mental disorders.
China ; Crime/psychology* ; Criminals/psychology* ; Data Collection ; Expert Testimony ; Forensic Psychiatry ; Humans ; Liability, Legal ; Male ; Mental Competency ; Mental Disorders/psychology* ; Psychotic Disorders ; Surveys and Questionnaires

OBJECTIVETo study the diagnostic value of diffusion tensor imaging (DTI) in cervical spondylotic myelopathy.

METHODSTwenty healthy volunteers and fifty patients with cervical spondylotic myelopathy underwent DTI in the Affiliated Hospital of Medical College of Ningbo University from January 2014 to April 2015. Healthy volunteers served as controls. Fifty patients were divided into three groups (group A , B, C) according to cervical MRI scan standard. Group A (17 cases) had only the dura mater spinalis compressed; Group B (23 cases) showed the cervical spinal cord compressed, but no high signal in it; Group C (10 cases) had the cervical spinal cord compressed with high signal in the same level. The average apparent diffusion coefficients(ADC) and fractional anisotropy (FA)values in these examinee were analyzed and all subjects were performed fiber tracking.

RESULTSThere was no statistically significant differences in ADC and FA values in C2/C3, C3/C4, C4/C5, C5/C6, C6/C7 of control group (P>0.05). The average ADC and FA values in control group were (0.875 +/- 0.096) x10(3) mm2/s and 0.720 +/- 0.051, respectively; compared with group A,there was no statistically significant difference; compared with group B and C, there was significant difference; comparison among group A, B, C, there was significant differences.

CONCLUSIONDTI can early and accurately quantify the changes of microstructure in cervical spondylotic myelopathy. Fiber tracking can show the damage range of spinal cord lesions.

Adult ; Case-Control Studies ; Cervical Vertebrae ; diagnostic imaging ; Diffusion Tensor Imaging ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Radiography ; Spinal Cord Diseases ; diagnostic imaging ; surgery ; Spondylosis ; diagnostic imaging ; Young Adult

OBJECTIVE: To extract sperm DNA from mixed stain by the modified differential lysis method combined with silicon bead method and to evaluate its application value. METHODS: Fifty-two mixed stains containing female STR genotypes detected by differential lysis method were collected. The sperm DNA was extracted by the modified method combined with silicon bead method, then genotyped with the Identifiler Kit, and compared with the results of genotyping by the conventional differential lysis method as control. RESULTS: Of the 52 samples, 38 samples with sole male STR genotypes in all loci were detected. The detection rate of male STR genotypes was 98.08% through the modified method combined with silicon bead method. CONCLUSION The modified differential lysis method combined with silicon bead method can be used in extraction of sperm DNA from mixed stain.
DNA/isolation & purification* ; DNA Fingerprinting ; Female ; Genotype ; Humans ; Male ; Polymerase Chain Reaction ; Silicon ; Spermatozoa

OBJECTIVETo summarize the complications and the early clinical effect of less invasive stabilization system and the femoral condylar support plates in the treatment of AO type C distal femoral fractures.

METHODSFrom September 2007 to February 2012, 46 patients with AO type C distal femoral fractures were retrospectively studied. Of all patients 25 were treated with less invasive stabilization system including 14 males and 11 females with a mean age of (56.3±4.2) years old; according to AO classification, there were 14 cases of C1, 8 cases of C2 and 3 cases of C3 with a mean hospital stay of (15.6±1.7) days. While 21 cases were treated with femoral condylar support plates fixation including 12 males and 9 females with a mean age of (53.8±5.1) years old;there were 13 cases of C1, 6 cases of C2 and 2 cases of C3 with a mean hospital stay of (17.8±2.2) days. Comparative analysis was performed from the operation related index,postoperative complications and Evanich score of the knee joint function between the two groups at follow-up.

RESULTSAll 46 patients were followed up from 13 to 38 months with a mean time of 19.6 months after surgery. Complications included 1 case with infection,3 cases with internal fixation failure, 1 case with nonunion and 1 case with activity limitation of the affected knee. The differences in the incision length, blood loss, fracture healing time were significant between two groups (P<0.05), while there was no significant difference in the duration of operations, hospital stays and the incidence of postoperative complications between two groups (P>0.05). The statistical significance was also found in the Evanich score at last follow-up between two groups (P<0.05).

CONCLUSIONPatients with less invasive stabilization system fixation had the characteristics of less trauma, shorter fracture healing time and better functional recovery. Less invasive stabilization system had became one of the ideal internal fixations in the treatment of AO type C distal femoral fractures.

Adult ; Aged ; Bone Plates ; Female ; Femoral Fractures ; surgery ; Fracture Fixation, Internal ; adverse effects ; instrumentation ; Fracture Healing ; Humans ; Length of Stay ; Male ; Middle Aged ; Postoperative Complications ; epidemiology

The sequences of ITS, matK, rbcL and psbA-trnH of 9 Gynostemma species or variety including 38 samples were compared and analyzed by molecular phylogeny method. Hemsleya macrosperma was designated as outgroup. The MP and NJ phylogenetic tree of Gynostemma was built based on ITS sequence, the results of PAUP phylogenetic analysis showed the following results: (1) The eight individuals of G. pentaphyllum var. pentaphyllum were not supported as monophyletic in the strict consensus trees and NJ trees. (2) It is suspected whether G. longipes and G. laxum should be classified as the independent species. (3)The classification of subgenus units of Gynostemma plants is supported.
Gynostemma ; classification ; genetics ; Molecular Sequence Data ; Phylogeny ; Plant Proteins ; genetics ; Sequence Analysis, DNA

OBJECTIVETo investigate the effects of locking plate fixation through lateral deltoid approach for proximal humeral fracture combined with micro-invasive percutaneous plating (MIPPO) technique.

METHODSFrom April 2009 to March 2012,26 patients with proximal humeral fractures were treated with proximal humeral locking system plate fixation through lateral deltoid approach, including 17 males and 9 females with an average age of 58 years old ranging from 28 to 76 years old. The time from injury to operation was 3 to 10 days (averaged 5.6 days). According to Neer typing for the proximal humeral fractures, 7 cases had 2 parts of fracture,15 had 3 parts of fracture,and 4 had 4 parts of fracture. The Neer score for shoulder function was evaluated.

RESULTSAll patients were followed up,and the duration ranged from 10 to 21 months (averaged 13.6 months). All patients were achieved bony union,the average healing time was 12.5 weeks (ranged from 10 to 21 weeks). No humeral head necrosis and axillary nerve injury occurred. According to Neer scoring system,the total score was 88.36 +/- 7.82, pain 30.82 +/- 3.24, function 23.76 +/- 5.71, activity 17.59 +/- 5.36, anatomical position 7.03 +/- 2.39; the result was excellent in 18 cases, good in 5 cases, fair in 2 cases, poor in 1 case.

CONCLUSIONLateral deltoid approach combined with locking plate fixation for treatment of proximal humeral fracture has advantages of small invasion,less blood lossing, short operative time, stable fixation, high rate of fracture healing, and satisfactory functional recovery.

Adult ; Aged ; Bone Plates ; Female ; Fracture Fixation, Internal ; instrumentation ; methods ; Humans ; Humeral Fractures ; surgery ; Male ; Middle Aged ; Shoulder Fractures ; surgery ; Treatment Outcome

OBJECTIVETo explore the methods and therapeutic effects of trans-fibular anterior-lateral approach combined with external fixation in the treatment of Gustilo III distal tibiofibula fractures.

METHODSFrom 2007 to 2010,9 patients including 7 males and 2 females with the mean age of 40 years(ranging from 29 to 51 years). All patients received internal fixation of fibula after debridement on the first phase, external fixator were used to fix tibia across ankle joint, and removed after successful skin graft; The second phase tibia was used to fix through the lateral incision used in phase I. Early functional exercise was encouraged ,the union condition and functional results of the ankle joint was evealuated. The criteria of the AOFAS Foot and Ankle Surgery was used to evaluate the effects.

RESULTSAll patients were followed up,and the duration ranged for 8 to 37 months(averaged 21 months). Nine patients were achieved bony union, the average healing time was 24 weeks. No plate rupture or screw loosening was found. According to the AOFAS Foot and Ankle Surgery evaluation system, 3 cases got excellent results, 4 good cases and 2 fair.

CONCLUSIONTrans-fibular anterior-lateral approach combined with external fixation for Gustilo III distal tibiofibula fractures can receive satisfactory reset, debond ankle joint eralier and imporove the clinical effects.

Adult ; Female ; Fibula ; Fracture Fixation ; methods ; Fractures, Bone ; diagnostic imaging ; surgery ; Humans ; Male ; Middle Aged ; Radiography ; Tibia ; Treatment Outcome

Animals ; Brain-Derived Neurotrophic Factor ; metabolism ; Hypothalamus ; metabolism ; Male ; Physical Conditioning, Animal ; physiology ; Rats ; Rats, Sprague-Dawley

Folic Acid ; administration & dosage ; therapeutic use ; Humans ; Neural Tube Defects ; prevention & control