Objective To study the correlation of three different indexes of arterial elastic function(PWV, C_ 1 and C_ 2 , AI). Methods 1306 out-patients with hypertension were recruited. Two or three arterial elastic function were measured at the same time. Large and small arterial elastic indexes(C_ 1 and C_ 2 );pulse wave velocity(PWV)and augmentation index (AI) in 428 cases , C_ 1 , C_ 2 and PWV(n=208), C_ 1 , C_ 2 , PWV and AI(n=60). Results C_ 1 was negatively related to PWV and positively related with C_ 2 . No correlation between AI and PWV, AI and C_ 1 and C_ 2 was found. Conclusion PWV, C_ 1 and C_ 2 are consistent for the arterial elastic function measurement. However, little relevance between AI and PWV, AI and C_ 1 and C_ 2 was shown.

With the rapid development of molecular nutrition, the urgent demand of rationalizing and individual clinical enternal nutrition support was realized. The enteral nutrition was added with special nutrition substrate. The application of carbohydrate in enteral nutrition and the status of comprehensive use of polysaccharides were summarized in this article. Based on the study of traditional fiber in enteral nutrition(EN) , the application of marine polysaccharides on the diseases oriented EN was analyzed and discussed. So, new nutrition substrate from marine polysaccharides is proposed for exploitation of various diseases oriented EN. Therefore, the individual nutrition support becomes possible.

Multiple myeloma is a plasma cell disease with the second highest incidence among hematological malignancies. Its risk of concurrent thrombosis is high, which greatly affects the quality of life and even endangers life of multiple myeloma patients. The pathogenesis of thrombosis in patients with multiple myeloma is complex, which is still unclear. However many mechanisms are considered to be related to hypercoagulable state in patients with multiple myeloma. Currently, there is a lack of thrombosis risk assessment model for multiple myeloma. Therefore, this paper reviews the research and the latest progress of venous thrombosis in patients with multiple myeloma, and provides a theoretical basis for the prevention and treatment of thrombosis.

Objective To discuss the effect and safety about large dosage of tilofiban injection into coronary artery in patients with ST-segment elevated myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI). Methods A prospective study was conducted. Two hundred and eighteen patients with STEMI admitted into Cardiology Department of Taizhou Central Hospital were enrolled. According to the difference in dosage, they were divided into a large dosage tilofiban group (102 cases) and a routine dosage tilofiban group (116 cases). In both groups, they received the injection of load dosage of tilofiban into coronary artery during they underwent primary PCI, the load dosage being 25μg/kg in the large dosage group, and 10μg/kg in the routine dosage group. Afterwards, the dosage was kept on 0.15μg·kg-1·min-1 in both groups lasting for 18-24 hours. The flow of thrombolysis in myocardial infarction (TIMI) immediately after PCI, the return of ST-segment after operation for 2 hours, the rate of bleeding events, the rate of major adverse cardiac event [MACE, including death, re-infarction and target vessel revascularization (TVR)] and prognosis after operation for 30 days were observed. Results The ratios of the immediate reflow of TIMI 3 grade after operation and the return of ST-segment after operation for 2 hours in the large dosage tirofiban group were higher than those in the routine dosage tirofiban group [the ratio of the reflow of TIMI 3 grade:92.16%(94/102) vs. 81.90%(95/116), the ratio of the return of ST-segment after operation for 2 hours:89.22%(91/102) vs. 73.28%(85/116), both P < 0.05]. The ratios of re-infarction, TVR and the total MACE in 30 days after operation in large dosage tirofiban group were lower than those in the routine dosage tirofiban group [re-infarction: 0.98% (1/102) vs. 2.59% (3/116), TVR: 0.98% (1/102) vs. 2.59% (3/116), total MACE: 1.96% (2/102) vs. 6.03% (7/116), all P < 0.05]. There were no statistically significant differences in mortality and the bleeding events between the large dosage tirofiban group and routine dosage tirofiban group [mortality:0 (0/102) vs. 0.86%(1/116), bleeding events:1.96%(2/102) vs. 0.86%(1/116), both P>0.05]. Conclusion The injection of a large dosage of tilofiban into a coronary artery in patients with STEMI undergoing primary PCI is an effective and safe method to allow them to get more clinical benefits.

OBJECTIVETo investigate a new operation of breast reduction for gynecomastia.

METHODSIn the past 5 years we treated 42 cases (80 sites) of gynecomastia with the double-ring incision, a supra-lateral derma-mammary pedicle of the nipple and areola and the tumescent technique.

RESULTSThe tumescent anesthesia was effective. The operation was easily performed with slight injury and less bleeding. It was safe and the patients recovered quickly. 100 to 500 grams tissue was resected from one breast. There have been no severe postoperative complications, such as nipple or areola necrosis. Follow-up from 3 to 48 months showed satisfactory results except that there was mild scar hypertrophy on the incision around the areola.

CONCLUSIONSThe new operation for gynecomastia with the double-ring incision, a supra-lateral derma-mammary pedicle of the nipple and areola, and the tumescent anesthesia is a good, reliable and convenient technique.

Adolescent ; Adult ; Breast ; surgery ; Gynecomastia ; surgery ; Humans ; Male

The hematopoietic repopulating ability of fresh and cultured CD34+ cells and CD34- cells derived from cord blood were compared by nonobese diabetic/severe combined immunodeficiency (NOD/SCID) mouse model. Fresh CD34+ cells and CD34- cells were isolated from fresh cord blood. Cultured CD34+ cells and CD34- cells were separated from cultured mononuclear cells (MNC). We transplanted these cells into sublethally irradiated NOD/SCID mice via the tail vein and sacrificed surviving mice after 6 weeks. The peripheral blood, spleen and bone marrow from each mouse were harvested for flow cytometry, colony-forming cells and human Alu sequences analyses. The proportions of CD45+ cells and human multilineage hematopoietic cells in NOD/SCID mice received CD34+ cells were close to that in the mice received both CD34+ cells and CD34- cells, while it was significantly higher than that in the mice received CD34- cells. Six weeks after transplantation, all the mice injected with cultured CD34- cells dead. The survival rate of mice injected with cultured CD34+ cells was 66.7%. All of the mice injected with both cultured CD34- and CD34+ cells survived. Moreover, CD45+ cells could be detected in all surviving mice, and human CD34, CD3, CD19, CD33 and CD71 antigen also could be detected on these CD45+ cells. The results showed that both fresh and cultured CD34+ cells had the capability of engraftment and hematopoiesis reconstitution, but CD34- cells hadn't the ability. However, CD34- cells had assistant effect on the hematopoietic repopulating ability of CD34+ cells.
Animals ; Cells, Cultured ; Cord Blood Stem Cell Transplantation ; Embryonic Stem Cells ; cytology ; Fetal Blood ; cytology ; Hematopoiesis ; physiology ; Humans ; Mice ; Mice, Inbred NOD ; Mice, SCID ; Transplantation, Heterologous

Neurogranin, a neuron-specific postsynaptic protein, has been considered to play an important role in synaptic plasticity and learning and memory. The present study aimed to investigate the effects of prenatal restraint stress on neurogranin expression in rat offspring hippocampus. Pregnant rats were given a restraint stress (3 times a day for 7 d, 45 min each time) at the late stage of gestation except that in the control group. The offspring rats were divided into four groups: female control group, male control group, female stress group and male stress group. Expression of neurogranin was determined by immunohistochemistry and Western blot. The results showed that neurogranin-positive immunostaining was detected in all areas of the hippocampus. The staining density was stronger in the CA1 and CA3 regions than that in the dentate gyrus (DG) region. Western blot assay showed that neurogranin protein level in female and male prenatal stressed offspring was significantly lower than that in the controls (P<0.01). Neurogranin level was significantly lower in the female stress group than that in the male stress group, whereas there was no significant gender difference in the control group. Immunohistochemical data further confirmed these results. The present study provides evidence that prenatal restraint stress induces gender-dependent decrease in neurogranin expression in the offspring hippocampus. The prenatal restraint stress-induced decrease in neurogranin expression in the hippocampus might be associated with the deficit in spatial learning and memory reported previously.
Animals ; Blotting, Western ; Female ; Hippocampus ; chemistry ; Immunohistochemistry ; Male ; Neurogranin ; analysis ; Pregnancy ; Prenatal Exposure Delayed Effects ; Rats ; Rats, Sprague-Dawley ; Restraint, Physical ; Stress, Psychological ; metabolism

Objective To investigate the incidence and the prognosis of acute kidney injury (AKI) and to find out the risk factors associated with the outcome for better understanding and preventing AKI among inpatients. Methods All the hospitalized patients were screened by Lab Administration Network of Renji Hospital,Shanghai Jiaotong University School of Medicine from Jan.to Dec.2009.Study cohort was comprised of all the patients with AKI defined by Acute Kidney Injury Network (AKIN) and with complete clinical data recorded.The incidence,etiology and distribution characteristics, prognosis of AKI in hospitalized patients were retrospectively analyzed.Logistic regression analysis was used to investigate the risk factors of patients and renal outcome. Results A total of 934 patients with AKI were enrolled.The incidence of AKI in hospitalized patients was 2.41％ (934/38 734).The ratio of male to female was 1.88∶1.Age was (60.82±16.94) years old.Increasing incidence could be seen with age rising.There was 63.4％ AKI found in surgical department,35.4％ in internal medicine department and 1.2％ in obstetric and gynecologic department.Pre-AKI,acute tubular necrosis (ATN),acute glomerular and renal vascular injury (AGV),acute interstitial nephritis (AIN) and post-AKI were accounted for 51.7％,37.7％,3.8％,3.5％ and 3.3％ of the causes of AKI,respectively.On day 28,the survival rate was 71.8％,complete renal recovery rate was 65.7％,partial renal recovery rate was 16.9％ and renal loss rate was 17.4％ among all the patients with AKI.The mortality of AKI with stage Ⅰ,Ⅱ and Ⅲ among inpatients was 24.8％,31.2％ and 43.7％ respectively.Multivariate Logistic regression analysis showed that renal injury drugs [odds ratio (OR)=2.313],hypotension (OR=4.482),oliguria (OR =5.267),the number of failure organs except kidney (OR =1.376) and requiring renal replacement therapy (RRT)(OR=4.221) were independent risk factors for death among AKI patients.The number of failure organs except kidney (OR=1.529) and RRT (OR=2.117) were independent risk factors for kidney loss. Conclusions AKI is one of the most common complications in hospitalized patients.The mortality is high and renal outcome is poor after AKI.The prognosis is closely associated with the severity of AKI.Renal injury drugs,hypotension,oliguria,the number of failure organs except kidney and requiring RRT are independent risk factors for death among AKI patients,while the number of failure organs except kidney and requiring RRT are independent risk.factors for renal loss.

OBJECTIVETo evaluate the effect of parathyroid hormone (1-34) [PTH(1-34)] and coralline hydroxyapatite (CHA) on bone regeneration of peri- implant bone defects.

METHODSTwo implant sites were prepared on both sides of tibia in 8 mongrel dogs. The bone defect was created along one bone wall of each implant site. Implants were implanted into the implant sites, then CHA was grafted into the bone defects. After surgery, the animals were randomly divided into two groups. PTH (1-34) (40 µg/kg) was used for subcutaneous injection to the experimental group for three consecutive days, meanwhile the same amount of saline was given to the control group. Half of the animals of each group were sacrificed after 4 weeks and 8 weeks respectively. Specimens were subjected to implant pull- out strength tests, X-ray picture and histological observation.

RESULTSThe bone density of bone defects in the experimental group were higher than that in the control group. No low-density images was observed between the implants and bone at 4 weeks and 8 weeks. The maximum pull-out force value of the experimental group (199.8 N, 411.5 N) was higher at 4 weeks and 8 weeks than that of the control group (100.1 N, 184.5 N) (P < 0.05). The pull-out force value of the experimental group at 4 weeks and the pull-out force value of the control group at 8 weeks were similar. The new bone trabecular around CHA of experimental group was thicker at 4 weeks. Implant surface contacted to the new bone directly without fiber. CHA granules of the experimental group at 8 weeks were fewer than that of the control group. New bone tissue of the experimental group was denser. The contact area between implant surface and new bone was wider in experimental group than in the control group.

CONCLUSIONSPTH (1-34) and CHA can promote bone regeneration of peri-implant bone defects, shorten the implants and bone healing cycle and improve the implants osseointegration.

Animals ; Bone Density ; Bone Regeneration ; drug effects ; physiology ; Ceramics ; pharmacology ; Dental Implants ; Dogs ; Hydroxyapatites ; pharmacology ; Injections, Subcutaneous ; Osseointegration ; drug effects ; physiology ; Parathyroid Hormone ; pharmacology ; Random Allocation

Aiming at the problems of missing important features, inconspicuous details and unclear textures in the fusion of multimodal medical images, this paper proposes a method of computed tomography (CT) image and magnetic resonance imaging (MRI) image fusion using generative adversarial network (GAN) and convolutional neural network (CNN) under image enhancement. The generator aimed at high-frequency feature images and used double discriminators to target the fusion images after inverse transform; Then high-frequency feature images were fused by trained GAN model, and low-frequency feature images were fused by CNN pre-training model based on transfer learning. Experimental results showed that, compared with the current advanced fusion algorithm, the proposed method had more abundant texture details and clearer contour edge information in subjective representation. In the evaluation of objective indicators, Q ^AB/F, information entropy (IE), spatial frequency (SF), structural similarity (SSIM), mutual information (MI) and visual information fidelity for fusion (VIFF) were 2.0%, 6.3%, 7.0%, 5.5%, 9.0% and 3.3% higher than the best test results, respectively. The fused image can be effectively applied to medical diagnosis to further improve the diagnostic efficiency.
Image Processing, Computer-Assisted/methods* ; Neural Networks, Computer ; Tomography, X-Ray Computed ; Magnetic Resonance Imaging/methods* ; Algorithms