Animals ; Drug Tolerance ; Glycogen Synthase Kinase 3 ; metabolism ; Glycogen Synthase Kinase 3 beta ; Morphine ; Phosphorylation ; Rats ; Signal Transduction

Objective:Osteoprotegerin (OPG) is a key molecule negatively regulating osteoclast differentiation and activation; and the conserved mycobacterial heat shock 70 (HSP70) peptide p111-125 has also been found to inhibit inflammation reactions in chronic arthritis. BaculoDirectTM baculovirus expression system was selected to express recombinant OPG-HSP70 in insect cells.Methods:The human functional fragment (p22-194) of OPG and functional fragment (p111-125) of mycobacterial HSP70 gene were cloned into the transfer vector pENTRTM/SD/D-TOPO. The recombinant plasmid was performed an LR reaction with the BaculoDirectTM Linear DNA to generate recombinant baculovirus DNA. The cultured Sf9 insect cells were directly transferred with the recombinant baculovirus DNA,and the pure recombinant baculovirus was obtained. Then recombinant baculovirus was infected Sf9 insect cells again to express the OPG-HSP70 gene.Results:The target protein was detected at the time of 48h post infection,reached at highest yield at the time of 72h post-infection. A 28kDa protein immunostaining band was detected by Western blotting from lysate of those cells.And the purified protein was obtained by using Ni-NTA system. Functional stuies on the fusion protein showed it significantly reduce osteoclast cell number[(3.10?0.640) cells under each microscope field in treatment group by comparing to (10.70?0.817)cells in the control group] in the osteoclast inhibition test,and reduce the inflammation reaction in a delayed type hypersensitivity (DTH) mice model (P

Non-contact measurement is an effective method of long time measurement of human electrocardiograph (ECG) signal. Because the relative position between measuring electrode and human body is not fixed, this method could result in constant changes of ECG signal collection. It often appears ECG signal distorting and weakened in filtering. This paper, using the principal component analysis (PCA) basic theory, proposes a fast adaptive PCA denoising algorithm which can automatically adjust the parameters according to the changes of ECG signal. The experiment proved that PCA denoising could be barely impacted by signal changes and can disposably remove interference signal on the premise of keeping the main features of ECG signal and can prevent ECG signal from being weakened in filtering at the same time.
Algorithms ; Artifacts ; Electrocardiography ; methods ; Humans ; Principal Component Analysis ; Signal Processing, Computer-Assisted ; instrumentation

OBJECTIVETo evaluate the effect of penile frenulum lengthening in the treatment of premature ejaculation (PE).

METHODSThirty-four males with PE were enrolled in this study, of whom 8 had received circumcision six months before and 4 had redundant prepuce, all with short frenulum. Those with a history of circumcision underwent reconstruction and lengthening of the frenulum, and those without received frenulum lengthening only.

RESULTSCompared with the baseline, the intravaginal ejaculation latency time (IELT) was significantly increased at 1 month after operation ([1.35 ± 0.49] vs [5.71 ± 2.69] min, t = -9.42, P <0.01), (1.42 ± 0.5) vs (5.31 ± 2.74) min in the patients without circumcision (t = -7.41, P <0.01), (1.12 ± 0.35) vs (7.00 ± 2.20) min in those with circumcision (t = -7.24, P <0.01), and (1.50 ± 0.58) vs (4.75 ± 1.71) min in those with redundant prepuce (t = -3.81, P <0.05). Totally, 94% of the patients were satisfied with their sexual intercourse postoperatively.

CONCLUSIONPenile frenulum plays an important role in penile erection. Reconstruction and/or lengthening of the frenulum can prolong penile erection and IELT in PE patients.

Adult ; Circumcision, Male ; rehabilitation ; Coitus ; Ejaculation ; Foreskin ; surgery ; Humans ; Male ; Penile Erection ; Premature Ejaculation ; surgery ; Reconstructive Surgical Procedures ; methods

Comformed with the natural biological universal view of "harmony of human and nature", the clinical and experimental researches and the achievements on chrono-medicine for cardiovascular and cerebrovascular diseases in recent 10 odd years were analyzed and summarized, and the problems in the current researches and the stressed spots of the future research were put forward in this paper.
Cardiovascular Diseases ; drug therapy ; Cerebrovascular Disorders ; drug therapy ; Chronotherapy ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Medicine, Chinese Traditional ; methods ; Phytotherapy ; Time Factors

Objective To investigate the learning curve of laparoscopy-assisted anorectoplasty in the treatment of high imperforate anus.Methods Sixty patients with high congenital anal atresia who were treated with laparoscopy-assisted anorectoplasty in the Capital Institute of Pediatrics from December 2008 to October 2015 by one experience surgeon were selected as observation group.Based on the criteria,the patients were divided into 4 groups(15 cases in each group) according to the sequence of the operation and every 15 cases served as a learning phase.The operating time,frequency of operation,complication rate,conversion rate to open surgery,blood loss,the rates of blood transfusion and hospital stay were compared among the 4 phases.Results The mean operation duration was (176.3 ±41.6) min,(128.8 ± 36.1) min,(127.3 ± 35.2) min,(124.0 ± 30.1) min in group A,B,C and D,respectively.The operation duration of 4 groups showed a declining trend.Group A has longer operation time than group B,C and D,the difference were statistically significant (P ＜ 0.05).In detail,the comparison of operation time between group A and group B was statistically significant (P ＜ 0.05).Furthermore,group A had significantly more median blood loss than group B,C and D,the differences were statistically significant [the 4 groups of data,respectively,group A:(17.5 ±6.5) mL,group B:(15.0±5.0) mL,group C:(14.5 ±5.5) mL,group D:(8.5 ±6.5) mL,P＜0.05].The mean capacity of blood loss was 12.7 mL.No significant difference was found in surgical complications,the rates of blood transfusion,total hospital stay,and postoperative hospital stay among the 4 groups(P ＞ 0.05).But the postoperative hospital stay decreased from 9.8 d (group A) to 7.4 d (group D).Conclusions For a well-trained surgeon in imperforate anus surgery.The learning curve of laparoscopy-assisted anorectoplasty in the treatment of high imperforate anus on about 15 cases helps to make a skillful surgeon.

Objective To establish a new rat model of biliary atresia by pure ethanol injection into the common bile duct.Methods A catheter was inserted and fixed in the common bile duct in male SD rats .Saline (8 rats) or pure ethanol (16 rats) was injected through the catheter ,respectively, and the biochemical and pathological changes in the rats were examined .Results SD rats in the experimental group were divided into a persistent injury and a restoration of liver dysfunction groups according to pathological and biochemical detection .In the persistent injury group , biochemical impair-ments were significantly higher at 8 weeks after ethanol injection than those in the control group and restoration group .Dis-tinct pathological changes in the liver were observed using HE , SMA, and Masson staining .Conclusions It is a reliable animal model of biliary atresia induced by injection of pure ethanol into the common bile duct in the rat .It will provide a useful tool in future studies of biliary atresia .

Objective To compare the clinical and radiological outcomes between hybrid and total pedicle screw instrumentation in adolescents undergone posterior spinal fusion (PSF) for thoracic scoliosis secondary to Chiari malformation..Methods A total of 75 patients undergone PSF were included and divided into two groups:the all pedicle screw group (Group A,n=44) and the hybrid group (Group B,n=31).Patients were evaluated before surgery,immediately after surgery,and at the 2-year follow-up in radiographic changes in curve magnitude,apical vertebral translation (AVT),apical vertebral rotation (AVR),trunk shift,thoracic kyphosis (TK),lumbar lordosis (LL),and sagittal vertical axis (SVA).These parameters were further analyzed with respect to preoperative TK in both groups.Results After surgery,the average correction of the thoracic curve was 60.2％ and 51.3％ in Group A and B,respectively (t=2.372,P=0.023).The average lumbar curve correction was 61.7％ in Group A,representing a significant increase compared to Group B (51.1％,t=2.431,P=0.020).At the final follow-up,loss of the thoracic curve correction was less in Group A (0.3％) than in Group B (1.7％),however,there was no statistical significance (t=-0.468,P＞0.05).AVT of the thoracic curve improved in Group A from 25.0 mm to 6.9 mm,while in Group B it changed from 24.1 mm to 7.4 mm.For patients with a preoperative TK greater than 40°,the proximal junctional angle was found to be significantly larger in Group A (10.0 degrees versus 4.5 degrees,t=-2.031,P=0.052) by the final follow-up,along with a significantly increased incidence of proximal junctional kyphosis (20％ versus 9％).Conclusion Total pedicle screw instrumentation provided a significantly better correction of the major and minor curves than hybrid constructs for the operative treatment of thoracic scoliosis secondary to Chiari malformation.However,for patients with thoracic hyperkyphosis,all-screw instrumentation had a higher risk of adjacent level proximal kyphosis.

OBJECTIVETo evaluate clinical outcomes of anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) reconstruction under arthroscopy combined with limited open repair of medial collateral ligament (MCL) for the treatment of multiple ligament injuries of knee joints.

METHODSFrom March 2006 and June 2012,the data of 14 patients (14 knees) with multiple injuries of ACL, PCL, and MCL were collected. There were 8 males and 6 females with an average age of (31.8 +/- 8.1) years old (ranged, 20 to 49 years old). All the patients were performed with X-ray and MRI examination, and the results showed that 10 patients had combined with injuries of anterior cruciate ligament (ACL), posterior cruciate ligament (PCL) and medial collateral ligament (MCL); 4 patients had ALC,PCL and posterolateral corner (PLC) injuries. Four patients had medial meniscus injuries and 2 patients had lateral meniscus injuries. The MCL,PLC and meniscus injuries were treated with operation on the first stage, and functional exercises were performed 3 weeks after fixation. The reconstruction operation of ACL and (or) PCL was performed at the second stage under arthroscopy 3 to 6 months later when the movement range of knee joint recovered to the normal level with obvious relaxation.

RESULTSAll incisions healed by primary intention. All the patients were followed up with a mean duration of 48.9 months (ranged, 24 to 80 months). The Lysholm score was improved from preoperative 19.6 +/- 0.9 to the latest follow-up 87.1 +/- 2.8 (t=12.3, P<0.01). The International Knee Documentation Committee (IKDC) rating: 9 cases nearly recovered to normal, 5 cases were abnormal.

CONCLUSIONFor multiple ligament injuries in the knee, staged repair and reconstruction can effectively restore knee joint stability and function.

Adult ; Anterior Cruciate Ligament ; surgery ; Anterior Cruciate Ligament Injuries ; Female ; Follow-Up Studies ; Humans ; Knee Injuries ; physiopathology ; surgery ; Knee Joint ; physiopathology ; surgery ; Male ; Middle Aged ; Posterior Cruciate Ligament ; injuries ; surgery ; Reconstructive Surgical Procedures ; Treatment Outcome ; Young Adult

Objective To detect the expression levels of serum ITAC, Fractalkine, IL-8, IL-17A, IL-7 and TNF-α in patients with gastric cancer, and to explore correlation among them, as well as their association with different clinical characteristics.Methods The levels of the 6 kinds of cytokines in serum of 46 gastric cancer patients (gastric cancer group) and 30 healthy people (healthy control group) were detected.Results Compared with those in healthy control group, the levels of serum ITAC, Fractalkine, IL-8, IL-17A, IL-7 and TNF-α in gastric cancer group were significantly increased [22.26 (32.83) pg/ml vs 11.95 (9.99) pg/ml, P =0.001;62.21 (82.23) pg/ml vs 26.47 (50.87) pg/ml, P =0.050;4.50 (10.38) pg/ml vs 2.06 (3.17) pg/ml, P =0.002;0.83 (2.01) pg/ml vs 0.21 (0.85) pg/ml, P=0.013;3.46 (1.90) pg/ml vs 2.11 (1.48) pg/ml, P=0.001;1.21 (1.13) pg/ml vs 0.79 (0.37) pg/ml, P ＜ 0.001].There were correlations between cytokines (all P ＜ 0.05).The level of serum cytokines was no significant difference between gastric cancer patients with lymph node metastasis and those without lymph node metastasis (P ＞ 0.05).Conclusions The high level of serum ITAC, Fractalkine, IL-8, IL-17A, IL-7 or TNF-α may be related to the occurrence and development of gastric cancer.High level of serum IL-8 may be a marker of poor prognosis of gastric cancer, and interaction between the various cytokines also has a certain association with tumorigenesis.