Objective To explore the safety and effectiveness of diagnostic ultrasound associated with microbubbles to open the blood brain barrier(BBB).Methods Microbubbles were injected through caudal vein,the rat head was radiated by GE Vivid 7 diagnostic ultrasound immediately.The radiated depth was located in the basal ganglia assisted by magnetic resonance imaging(MRI)scanning.The degree of BBB opening was evaluated by enhanced MRI and Evans blue dyeing.The safety was inspected by observation of cell morphology under hematoxylin eosin(HE)staining.Results After the rat head radiated by diagnostic ultrasound with microbubbles,signal enhancement of the radiated area was observed on post contrast T1-weighted images.Red fluorescence of Evans blue was detected by fluorescence microscope in the same area.Normal cellular morphology and structural integrity were showed by HE staining.Conclusions The BBB of rat could be opened targetedly and noninvasively by diagnostic ultrasound associated with microbubbles.This may provide a new strategy for the drugs and stem cells treatment in the central nervous system diseases.

Objective To compare the efficacy between open reduction internal fixation and nonoperative treatment of multiple rib fractures.Methods Pubmed,Embase,Chinese National Knowledge Infrastructure database (CNKI),Chinese Biological Medical Literature database (CBM),Wanfang database and VIP database were searched for relevant studies comparing the effect of open reduction internal fixation and non-operative treatment of multiple rib fractures during 1990 and 2016.RevMan 5.3 software was used for the meta-analysis to compare differences of the two treatments concerning hospital stay,total ICU stay,duration of mechanical ventilation,proportion of pneumonia and atelectasis and pulmonary function.Results Eleven studies containing 799 patients met the inclusion criteria,including 431 patients in internal fixation group and 368 patients in non-operative group.Two groups had significant differences in hospital stay (95％ CI-11.00--3.34,P ＜-0.05),total ICU stay (95％ CI -4.48--1.29,P ＜ 0.05),duration of mechanical ventilation (95％ CI-7.52--1.54,P ＜ 0.05),proportion of pneumonia (95 ％ CI 0.19-0.42,P ＜ 0.05),proportion of atelectasis (95 ％ CI 0.24-0.57,P ＜ 0.05) and total lung capacity (95 ％ CI 1.57-1.97,P ＜ 0.05),forced vital capacity (FVC) (95 ％CI 0.98-1.27,P ＜ 0.05) and forced expiratory volume in one second (FEV1) (95％ CI 0.68-0.95,P ＜ 0.05).Conclusion Open reduction internal fixation of multiple rib fractures can significantly improve rehabilitation rate,reduce incidence of pulmonary complications dnring hospitalization,and facilitate recovery of lung function.

This paper introduces the locomotion control and the research status of the autonomous interventional diagnostic micro-robots in detail, outlines technical problems and difficulties now existing, and discusses the developing trend of locomotion control.
Artificial Intelligence ; Equipment Design ; Locomotion ; Robotics ; instrumentation

The clinical practice of China's integrative medicine (IM) and international integrative medicine was reviewed. As for the existent problems, we raised some personal ideas from the aspects of policies and regulations, safety, efficacy, and educational training, etc.
China ; Humans ; Integrative Medicine

Background Researches demonstrated that corneal dystrophy is associated with the mutation of transforming growth factor beta induced gene(TGFBI)located at chromosome 5q31 domine.Recent study showed that the gene mutation location is in R124H of TGFBI gene. Objective This study was to identify the mutation characteristics of TGFBI gene in a Chinese family with Avellino corneal dystrophy. Methods This Chinese family with Avellino corneal dystrophy were determined and surveyed in Peking University Third Hospital.Periphery blood from 8 patients with Avellino corneal dystrophy and 2 unaffected subjects were collected from a Chinese family with corneal dystrophy for the extraction of DNA.Exons 4,11,12 of the TGFBI gene were amplified by polymerase chain reaction(PCR),and the amplified products were sequenced directly and compared the gene sequence with that of TGFBI in GenBank.Written informed consent was obtained from each Subject prior to any medieal process. Results This family included 27 members of consecutive 4 generation.The hereditary pattern W88 in accordance with the autosomal dominant inheritance.Directly sequencing of 8 affected members revealed a G tO A transition at codon 124 (CGC to CAC),producing R124H mutation of TGFBI gene.Two synonymous single nucleotide polymorphism(SNP)of TGFBI gene occurred in the family.including a C to T transition at eodon 472(CTC to CTT)in 8 members,and a T to C transition at codon 540(TTT>TTC)in 9 members,which wag unrelated with disease. Conclusion R124H mutation of the TGFBI gene is found in this Chinese family with Avellino corneal dystrophy.

Four compounds were isolated from the 70% EtOH extract of Ardisia crispa by using various chromatographic techniques, including silica gel, ODS and semi-preparative HPLC. The structures of 1-4 were elucidated based on physicochemical properties and spectroscopic data. These compounds were defined as crispalactone A (1), (+)-pinoresinol (2), 3,5-dimethoxy-4- hydroxyphenol-1-O-β-D-glucopyranoside (3) and (+)-schizandriside (4). Compound 1 is a new γ-valerolactone derivative, and compounds 2-4 are firstly isolated from Ardisia crispa.

OBJECTIVETo evaluate the clinical effectiveness of transurethral seminal vesiculoscopy (TUSV) combined with finasteride in the treatment of recurrent hemospermia.

METHODSThis study included 32 patients with recurrent hematospermia, with the disease course of 3 months to 4 years. After administration of finasteride at 5 mg/d for 2 weeks, the patients underwent TUSV for both exploration of the causes and treatment, followed by medication with finasteride at the same dose for another 2 weeks. Postoperative follow-up was conducted for observation of the outcomes and complications.

RESULTSTUSV was successfully accomplished in all the 32 cases, which revealed 16 cases of seminal vesiculitis, 10 seminal calculi, 1 seminal vesicle cyst, 2 seminal vesicle polyps, and 3 seminal vesicle abscess. The operative time was 20 to 51 (31.0 +/- 5.2) minutes. Postoperative complications included 1 case of acute epididymitis and 3 cases of breast discomfort within the first 4 weeks. No incontinence, urethral stricture, rectal injury, retrograde ejaculation, and sexual dysfunction occurred postoperatively. All the patients but 1 were followed up for 6 months to 2 years. Twenty-nine of the cases were cured, and 2 experienced recurrence.

CONCLUSIONTransurethral seminal vesiculoscopy combined with finasteride is safe and effective for the treatment of recurrent hemospermia.

Adult ; Endoscopy ; methods ; Finasteride ; therapeutic use ; Follow-Up Studies ; Hemospermia ; therapy ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Treatment Outcome

OBJECTIVETo study the efficiency of decreasing instability of large femoral head components in revision total hip arthroplasty (THA).

METHODSFrom August 2005 to December 2010, 107 patients (112 hips) with 28 mm femoral head components (28 mm group) and 46 patients (46 hips) with 36 mm femoral head components (36 mm group) in revision THA were analyzed retrospectively in order to find if the dislocation rate and Harris hip score were different between the two groups at the time of last follow-up. All the operations were performed by the first author. There were 81 male patients (85 hips) and 26 female patients (27 hips) in 28 mm group with mean age of (62±17) years (26-79 years) and 33 male patients (33 hips) and 13 female patients (13 hips) in 36 mm group with mean age of (60±16) years (31-77 years).

RESULTSThe mean follow-up period was 43.3 months (33-71 months) for 28 mm group and 26.7 months (12-37 months) for 36 mm group. There were 7 patients dislocated after revision in 28 mm group, including 2 revised with reinforcement rings (with dislocation rate 9.5%), 3 revised with impaction bone grafting technique (with dislocation rate 8.3%) and 2 revised with cementless cups (with a dislocation rate 3.6%). The dislocation rate of this group was 6.2%. While the dislocation rate of 36 mm group was 2.2%, the only dislocated patient was because of loss of gluteus medius muscle function in the index operation. If this case was excluded, the dislocation rate of 36 mm group would be 0. There was significant difference between the two groups (χ2=103.0095, P<0.01). The Harris hip score was 88±11 for 28 mm group and 89±9 for 36 mm group, there was no significant difference between the two groups (P>0.05).

CONCLUSIONThe large femoral head components can significantly decrease the instability after revision THA, which should be used in revision THA.

Adult ; Aged ; Arthroplasty, Replacement, Hip ; instrumentation ; Female ; Follow-Up Studies ; Hip Prosthesis ; Humans ; Male ; Middle Aged ; Prosthesis Failure ; Retrospective Studies

OBJECTIVETo compare the difference of anterior knee pain after total knee arthroplasty (TKA) between the ways using periosteal dissector and electric scalpel to release medial collateral ligament and pes anserinus.

METHODSFrom September 2009 to September 2012, 220 patients with unilateral osteoarthritis were treated with primary TKA in hospital 301. All the patients were randomly divided into periosteal dissector group (110 cases) or electric scalpel group (110 cases). In the periosteal dissector group, there were 47 males and 63 females,with an average age of (58.8 +/- 17.2) years old; the degree of genuavarus was (14.0 +/- 3.5) degrees; the weight was (65.6 +/- 12.8) kg; the body mass index (BMI) was (26.6 +/- 3.6) kg/m2. In the electric scalpel group,there were 49 males and 61 females,with an average age of (59.6 +/- 16.7) years old;the degree of genuavarus was (15.0 +/- 4.7) degrees; the weight was (66.4 +/- 13.4) kg; the BMI was (27.4 +/- 4.1) kg/m2. The mean follow-up period was 24.6 months. The AKS, VAS and HSS were used to evaluate clinical results.

RESULTSAll incisions healed at the first stage;no deep vein thrombosis of lower limbs or pulmonary embolism occurred. Knee infection occurred in 3 cases (1 in the periosteal dissector group and 2 in the electric scalpel group), and the 3 patients received stage 2 total knee revision using antibiotic bone cement and TC3 prosthesis. No recurrence of infection occurred during follow-up. Among the 20 patients who had anterior knee pain, 16 patients were in the periosteal dissector group and 4 patients were in the electric scalpel group. The occurrence rate of anterior knee pain in the electric scalpel group was lower than that in the periosteal dissector group. The AKS knee score and HSS score after total knee arthroplasty in the electric scalpel group were all higher than those in the periosteal dissector group, and the VAS in electric scalpel group was lower than that of periosteal dossector group.

CONCLUSIONCompared with using electric scalpel,using periosteal dissector used to release medial collateral ligament and pes anserinus may cause more anterior knee pain after total knee arthroplasty.

Adult ; Aged ; Arthroplasty, Replacement, Knee ; adverse effects ; Case-Control Studies ; Female ; Humans ; Knee Joint ; surgery ; Male ; Middle Aged ; Pain, Postoperative ; etiology ; Tibia ; pathology ; Treatment Outcome ; Young Adult

The presence of a large palatal or maxillary defect after partial or total maxillectomy for tumor, trauma or congenital deformation poses a challenge to prosthodontists, particularly when the use of an implant cannot be considered. This case report described the use of an air valve in a hollow silicone obturator to manufacture an inflatable obturator that could be extended further into undercut area to retain itself. The inflatable obturator exhibited adequate retention, stability and border sealing, thereby improving the masticatory,pronunciation and swallowing functions of patients. It may be a suitable alternative treatment option to an implant-retained obturator.
Dental Impression Technique ; Dental Prosthesis Design ; Dental Prosthesis Retention ; Denture Retention ; Denture, Complete, Upper ; Fibrous Dysplasia of Bone ; rehabilitation ; surgery ; Humans ; Male ; Maxilla ; surgery ; Orthognathic Surgical Procedures ; instrumentation ; methods ; rehabilitation ; Palatal Obturators ; Silicones ; Treatment Outcome ; Young Adult