The embryo quality and endometrial receptivity is the two important factors that affects human implantation. Many patients with infertility caused by the disorder of endometrial receptivity fails in embryo implantation. Improving the receptivity of endometrium to improve clinical pregnancy rate has become a hot issue of research in recent years. In this paper, the current use of drugs and surgery on the measures to improve the receptivity of endometrium was summarized, in order to provide references for improving the success rate of assisted reproductive technology.

Objective: To explore the factors affecting the prevalence of HIV-associated neurocognitive disorders (HAND) among HIV/AIDS patients, so as to provide insights into developing HAND prevention measures. Methods: HIV/AIDS patients aged 18 years and above in the Infection Department of Nanjing Second Hospital were selected.Demographic data, treatment regimen and blood biochemical indicators were collected. Depression was evaluated using Patient Health Questionnaire Depression Scale, frailty was evaluated using Chinese version of Tilburg Frailty Indicator, and HAND was evaluated by Montreal Cognitive Assessment Scale. Factors affecting HAND were analyzed using a multivariable logistic regression model. Results: Totally 440 questionnaires were allocated and 426 valid questionnaires were recovered, with an effective rate of 96.82%. The median age of patients investigated was 33.00 (interquartile range, 10.00) year. There were 407 males, accounting for 95.54%; 232 patients with bachelor degree or above, accounting for 54.46%; 171 patients with HAND, accounting for 40.14%. Multivariable logistic regression analysis showed that educational level (bachelor degree or above, OR=0.291, 95%CI: 0.157-0.541), depression (OR=2.499, 95%CI: 1.530-4.083), frailty (OR=2.121, 95%CI: 1.307-3.441) and treatment regimen including efavirenz (OR=2.223, 95%CI: 1.367-3.615) were the influencing factors for HAND among HIV/AIDS patients. Conclusion Educational level, depression, frailty and use of efavirenz may be associated with HAND risk.

Objective To apply a hand function laserimager to evaluate the effect of acupuncture on hand dysfunction after stroke. Meth-ods From January to June, 2016, 18 stroke patients with upper limb dysfunction were divided into control group (n=9) and acupuncture group (n=9). The control group received routine medication and rehabilitation, while the acupuncture group received acupuncture in addi-tion. They were assessed with modified Ashworth Scale (MAS), Fugl-Meyer Assessment (FMA) of upper limb motor function and modified Bathel Index (MBI) before and after three-week treatment, while the region of interest (ROI) of their hands was tested with the hand func-tion laserimager. Results The scores of MAS and FMA improved after treatment in both groups (t>4.44, P<0.01), and improved in the score of MBI in the acupuncture group (t=3.95, P<0.01). The scores of MAS, FMA, and MBI improved more in the acupuncture group than in the control group (t>3.17, P<0.01). Meanwhile, the scores of ROI decreased in the affected hands after treatment (t>7.78, P<0.001), and de-creased more in the acupuncture group than in the control group (t=-2.23, P<0.05). No significant difference was observed in the scores of ROI of the unaffected hands (t=-0.11, P>0.05) between groups. Conclusion The hand function laserimager, which responds to the blood perfusion of the hand, can be used as a tool to evaluate the hand function.

AIM: To investigate the effect of cyclin B1 antisense oligodeoxynucleotide (ASON) with liposomal transfection on proliferation of HL60 cells. METHODS: After cyclin B1 ASON with liposomal transfection was used in vitro co-culture with HL60 cells,the protein and mRNA expression levels of cyclin B1 were measured by flow cytometry and RT-PCR. The cell apoptosis was detected by electron microscopy, in situ cell apoptosis detection kit (POD),DNA agarose gel electrophoresis and flow cytometry. RESULTS: In cyclin B1 ASON group the protein and mRNA expression levels of cyclin B1 were significantly inhibited than those in sense oligodeoxynucleotide (SON) group and blank group. Morever,when the ASON concentration increased,the proliferation ratio of HL60 cells and CFU-HL60 clony unit were also significantly inhibited. The apoptosis of HL60 cells was also observed. CONCLUSION: Cyclin B1 ASON specifically inhibited its protein and mRNA expression levels as well as the HL60 cell proliferations and induced leukemia cell apoptosis. It's effect depended upon the concentration of ASON.

Objective This study aimed to evaluate the reliability of Tslew in survelliance of allograft rejection after heart transplantations in rats. Methods Forty rats underwent modified Ono's heterotopic heart transplantation. The autonomous IMEG and VER were recorded with epicardiac pacing leads fixed at right ventricular outflow tracts, left ventricular apex and free wall. Tslews were detected daily in these 10 syngeneic and 30 allogeneic transplants. Syngeneic transplants were sacrificed on 7th postoperative day and allogeneic transplants were sacrificed on 3rd, 5th and 7th postoperative days, respectively.Histopathologic studies were performed at the same time. Results On the 3rd ,5th and 7th postoperative days Tslews depressed gradually in the allogeneic group. The depressions between 3rd and 5th, 3rd and 7th were obvious( P ＜0.05 ). No significant differences were observed in the syngeneic group. Tslews differed between the two groups at 5th and 7th postoperative days ( P ＜0.05 ). The Depression correlated with histopathologic results. Area under ROC( receiver operating characteristic) curve (AUC) of Tslew was 0.9474 and the 95% confidence interval(CI) was (0. 8753 -1. 0000 ). At the cutoff point of 92% ( ≤92% considered positive), Tslew had a sensitivity (Se) 100%, specificity (Sp) 63.64%, positive predictive value (PV + )82.61%, negative predictive value (PV-) 100%, respectively. At the cutoff point 85%, Sp 90.91%, Se 78.95%, PV +93.75 %, PV- 71. 43%. At the best cutoff point 90%, Tslew had a Se 94.74%, Sp 81. 82%, PV + 82.61%, PV- 90%.Whereas QRS had a Se 68.42%, Sp 90.91%, PV + 92.86%, PV- 62.50% at the best cutoff point of 72.3%. Conclusion Tslew of VER are reliable indexs to monitor acute allograft rejection after heart transplantations in rats. Having great diagnostic value, Tslew may be used as a replacement for EMB at the best cutoff point when EMB can' t be performed. At cutoff point of 92%, Tslew may be used as a screening index.

Objective To investigate the reliability of intramyocardial electrogram (IMEG) in monitoring acute rejection after human heart transplantation. Methods From June 2004 to March 2009, 32 patients underwent orthotopic heart transplantations. During the operation telemetric pacemakers were placed under the skin of the body with connected bipolar electrodes implanted into epimyocardium. Postoperative IMEGs, including the autonomous IMEG and ventricular evoked response (VER) were recorded routinely. The endomyocardium biopsy (EMB) was taken routinely and performed once again when positive IMEG results or other positive signs were observed. Results Totally 523 IMEGs has been produced, 41 of VERs were recorded together with autonomous IMEGs and EMBs, in which 17 EMB specimens were confirmed positive and 24 negative. AUC of QRS was 0.7537, Se was 88.24%, Sp was 62. 50%; AUC of Tslew was 0. 9081, Se was 94. 12%, Sp was 87. 50%. QRS and Tslew had significant difference in AUC of ROC, with x2 = 4. 22, P＜0. 05; AUC of combined diagnostic index (positive when either QRS or Tslew is positive and negative when both values are negative) was 0. 7917, Se was 100.00%, Sp was 58. 33%. Conclusion QRS amplitude of the autonomous IMEGs, Tslew of VERs and combined diagnostic index are reliable indexes for monitoring acute allograft rejection after human heart transplantation. Furthermore, Tslew has a better prognostic value than QRS.

BACKGROUND : After femoral neck fracture, incidences of ischemic necrosis and bone non-healing are closely related to biomechanical characteristics of internal fixation devices. Compression stress can improve fracture healing, tension force can delay fracture healing, and shear stress can inhibit fracture healing. How to relieve shear stress and expand compression stress is of significance for theories and clinical applications.OBJECTIVE: To compare the biomechanical characteristics of the two geometric configurations of three cannulated compression screws in the fixation for femoral neck fracture and to provide a theoretical foundation in the treatment of femoral neck fracture.DESIGN : Observational contrast study.SETTING: Department of Orthopaedics, the 251 Hospital of Chinese PLA; Department of Orthopaedics, the Third Hospital, Hebei Medical University.PARTICIPANTS: The experiment was carried out in the Hebei Orthopaedic Institute from November 2002 to March 2003. Five cadavers including 4 males and 1 female with similar bone mineral density (BMD) were provided by Department of Anatomy, Hebei Medical University. X-ray photographs proved that all the cadavers did not have rheumatism, tuberculosis, tumor, fracture or deformity.METHODS: Ten femurs were randomly divided into inverted and upright isosceles triangle with 5 in each group. Femur samples with femoral neck fracture were fixed with three cannulated screws and measured with the biomechanical machine (CSS-44020, made in Changchun Experimental Researching Institute, provided by Hebei Orthopaedics Institute). The compression strength, torsibility and the maximal vertical loading were compared between the two configurations of screws.MAIN OUTCOME MEASURES:①Displacement of femoral head at 600 N and 750 N during torsibility test; ②torque-moment at 2°and 4°during torsibility test;③load during maximal vertical loading test.CONCLUSION: The effect of three cannulated compression screws configured as an inverted isosceles triangle on the treatment of femoral neck fracture is superior to that of three cannulated compression screws as an upright isosceles triangle.

BACKGROUND: Previously, more researches are about the pathological changesinskeleton, nerveandmuscularofcongenitalclubfoot(CCF). Researches are exploring the changes in the surrounding soft tissues of the deformed feet.OBJECTIVE: To investigate the relationships between the pathogeny,pathology and pathogenesis of CCF and extracellular matrix (ECM).DESIGN: A completely randomized controlled trial.SETTING: Institute of Orthopeadics of the Fourth Military Medical University.PARTICIPANTS: The study was conducted in the Institute of Orthopeadics of the Fourth Military Medical University from November 1997 to August 2003. The deep fascia of study group was obtained from 15 CCF patients who received operative corrections including 11 males and 4 females with an average of 9 months. Five infant corpses who died from non-neural muscular diseases and non-collagen diseases aged between 4 and 21 months with an average age of 11 months were selected in the control group.METHODS: Immunohistochemical investigation was used for the assay of both study and control group. Slices were quantitatively analyzed by Letica Q,570c color image analysis and management system.MAIN OUTCOME MEASURES: Positive expressions of collagen Ⅰ, Ⅱ and Ⅲ, and the relative contents in the deep fascia of both groups.RESULTS: The grey values for relative contents of collagen Ⅰ, Ⅱ and Ⅲ in the interior foot were 116. 43 ± 11. 80, 132. 91 ± 8. 88, and 184. 40 ± 11.82respectively in the study group, and 169.28 ± 8.17, 176. 33 ± 9.47, and 194. 38 ±5.87 in the control group. The contents of collagen Ⅰ, Ⅱ and Ⅲincreased in the contractured tissues of CCF group with the most significant increase in collagen Ⅰ, followed by collagen Ⅲ and the increase of collagen Ⅱwas least. Additionally, collagen Ⅰ was negatively correlated with collagen Ⅲ. The positive expression of collagen Ⅱ might be an accompanying phenomenon, which had no correlation with collagen Ⅰ and Ⅲ.CONCLUSION: ECM changes in CCF are accorded with fibrosis in tissues and organs and general fibroelastosis. Therefore, CCF might be caused by the fibrosis of interior foot.

Objective To investigate the forming mechanism of smile anatomically,and to analyze the changes of aging characteristics of mid-lower face.Methods Ten (with 20 sides) adult fresh cadaveric heads were fixed by formalin,and then nasolabial fold morphology was observed under 10X operating magnifying glass,and compared with alteration of the middle and lower face aging features under the state of smiling and static according to observation from 50 doctors' and out-patients' photos.Results The nasolabial fold was the boundary between fatty and fat-free zone in the middle face,the lateral side of which was malar fat pad.The nasolabial fold was the linear area,which was formed by the insertions of seven mimetic muscles on the skin.When smiling,the nasolabial fold and cheek groove,got deep and extended,cheek stripe became obvious.While smiling,malar fat pad shifted up,and tear trough became deformity..64％ disappeared and 36％ getting shallow and appearance improved; orbit-malar fold showed 100％ horizontal part disappeared,74 ％ vertical part became shallow and improved,and 26％ stayed stable; mid-cheek fold showed 78％ dissovled,22％ getting shallow and improved; Labiomandibular fold showed 100％ Ⅲ degree disappeared,100％ Ⅱ degree dissovled,74％ Ⅰ degree disappeared,and 26％ getting shallow and ameliorated; submaxilla line showed 18％ getting smooth and 82％ remained.Conclusions Smiling is produced by movement of mimetric muscles,and its orgin is from nasolabial fold.A smile could make malar fat pad upwards to mask some aging characteristics of middle and lower face,which is helpful to form a younger face.

This study was aimed to establish an analytical method to determine spinosin, jujuboside A, jujuboside B and betulinic acid content of Ziziphi Spinosae Semen quickly and accurately. The UPLC determination of Ziziphi Spinosae Semen method was established on an HSS T3 Column (2.1 mm × 100 mm, 1.8 μm) eluted with the mobile phase consisted of water containing 0.03% phosphoric acid and acetonitrile in gradient mode with the flow rate of 0.5 mL?min-1 and the detection wavelength was set at 204 nm. The standard curves of spinosin, jujuboside A, jujuboside B, betulinic acid showed a good linearity in 29.70 - 594.0 μg?mL-1, 10.68 - 213.6 μg?mL-1, 6.175 - 123.5 μg?mL-1, 22.00 - 440.0 μg?mL-1, respectively. The mean recoveries (n = 9) of the four components were between 98 . 3% and 99 . 4%, RSD < 1 . 4%. This method which is quick and accurate can be used to determine spinosin, jujuboside A, jujuboside B and betulinic acid in Ziziphi Spinosae Semen.