Objective To study the effect of heart function and histopathology after coronary vein bypass grafting.Methods 16 pigs were divided into experimental group and control group.Following 16 pig models of chronic myocardial isehemia of left ventri- cle were established,the left internal mammary artery (LIMA)-great cardiac vein (GCV) anastomasis in 8 pigs were completed 4 week later.After GCV occlusion at proximal,retrograde coronary venous perfusion was afforded.At 8 week,coronary angiography,echo- cardiography and myocardial radioisotope scanning were performed.After harvesting these hearts,histopathologic examination and electron microscope were undertaken.Results All anastomotic vessels of experimental pigs were smooth.LVEF in experimental group was significant higher than that in control group (P

BACKGROUND: A series of basic researches have confirmed that,the olfactory ensheathing cell transplantation can promote spinal cord regeneration and recover some neurological functions of spinal cord in animal models of spinal cord injury.Some clinical trials also prove that transplantation of olfactory ensheathing cells can indeed improve neurological function in patients with spinal cord injury,and then improve their quality of life.OBJECTIVE: To verify the effectiveness and safety of olfactory ensheathing cell transplantation in repair of neurological function of spinal cord injury patients.METHODS: The aborted embryonic olfactory bulb was collected and digested into single olfactory ensheathing cells.After they were cultured and purified 2 weeks,olfactory ensheathing cell suspension was prepared.A total of 213 cases of spinal cord injury were selected.Under general anesthesia,the prepared olfactory ensheathing cell suspension was injected through several target sites surrounding the injured spinal cord.ASIA scale was used to assay the patients before transplantation,3 weeks to 2 months after transplantation,so as to evaluate spinal cord recovery.RESULTS AND CONCLUSION: The spinal cord nerve function in all patients altered to different degrees at 3 weeks postoperation.Spinal cord function score,the sensory and motor functions were significantly increased compared with preoperation(P < 0.001),and showed a trend of continuous improvement with time; the patients were visited as follow-up for no more than 5 years,and no impairment of the restored nervous function or transplant adverse reactions were observed.It is confirmed that olfactory ensheathing cell transplantation can promote the recovery of nerve function in patients with spinal cord injury,it can restore and improve some spinal cord functions,and the treatment is safe.

Animals ; Antibodies, Monoclonal ; therapeutic use ; Antibodies, Monoclonal, Humanized ; Antineoplastic Agents ; therapeutic use ; Breast Neoplasms ; drug therapy ; Humans ; Receptor Protein-Tyrosine Kinases ; antagonists & inhibitors ; Signal Transduction ; Trastuzumab

Carcinoma, Hepatocellular ; genetics ; DNA Methylation ; DNA-Binding Proteins ; genetics ; Histone-Lysine N-Methyltransferase ; Humans ; Liver Neoplasms ; genetics ; Nuclear Proteins ; genetics ; Promoter Regions, Genetic ; genetics ; Transcription Factors ; genetics

OBJECTIVETo analyze the effect of three-dimensional (3D) laparoscopic total thyroidectomy combined with central lymph node dissection for thyroid cancer and its effect on the inflammatory response of the patients.

METHODSThe clinical data were analyzed in 90 patients with thyroid cancer undergoing radical thyroidectomy at our hospital between September, 2013 to April, 2016, including 30 receiving 3D laparoscopic surgeries, 30 with 2D laparoscopic surgeries and 30 with open surgeries. The surgical data, postoperative adverse reactions and the impact of the surgeries on the inflammatory responses of the patients were compared among the 3 groups.

RESULTSCompared with the open surgery and 2D laparoscopic surgery, 3D laparoscopic surgery was associated with lowered blood loss during the surgery and a lowered incidence of adverse reactions. The operation time in 3D group was significantly shorter than that in 2D group (P<0.05), but the total hospitalization expenses were similar between the two groups. The postoperative drainage volume did not differ significantly between the 3D group and the other two groups. The postoperative hospital stay, number of lymph nodes dissected, positivity rate of lymph nodes and the inflammatory response showed no significant differences among the 3 groups (P>0.05).

CONCLUSION3D laparoscopic total thyroidectomy combined with central lymph node dissection is safe and effective and reduces intraoperative blood loss and perioperative adverse reactions without significant influence on inflammatory response in patients with thyroid cancer.

It review the structure-function relationship of natural anthraquinone derivatives from Radix et Rhizoma Rhei. The anthraquinone derivatives had many identical activities because they have the identical mother nucleus; but the strength of their activities were different, because they have different substitution groups. The anthraquinone derivatives shown the obvious structure-function relationship in many respects, such as antioxygenation, antibiosis, anticancer, the influence of immunity and so on.
Anthraquinones ; chemistry ; pharmacology ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Molecular Structure ; Rheum ; chemistry ; Structure-Activity Relationship

Objective To investigate the role of SDF-1/CXCR4 axis on the apoptosis of human degenerative nucleus pulposus cells (NPCs) and its potential molecular mechanism .Methods The intervertebral disces tissues from clinical discectomy were divided into normal group and intervertebral disc degeneration ( IVD) group according to Pfirrmann classification.The different expression of SDF 1 and CXCR4 in human IVDs was tested by immunohistochemistry, quantify polymerase chain reaction (q-PCR) and Western blot.The primary degenerative NPCs were primary cultured.The generation Ⅲ~Ⅴ NPCs was treated with 10 ng/mL SDF-1, in the presence of or in the absence of CXCR4 siRNA transfection and 20 μmol/L NF-κB inhibitor (pyrrolidine dithiocar bamate,PDTC).The transfection efficiency and target protein of signal pathway were verified by Western blot , the apoptosis of NPCs were tested by Annexin V /PI, the nucleus transferlocation of P65 from NF-κB were tested by immunofluorescent method.Results SDF-1and CXCR4 were both expressed in all donor tissues, however, there was a significantly increased in the degenerative IVDs .The apoptosis of degenerative NPCs was expedited by SDF -1 stimulation,which was significantly suppressed by CXCR 4 silencing by siRNA (P<0.05).Furthermore, with SDF-1 stimulation,the expressions of phosphorylated P 65 was significantly increased and the P65 perssad transferred to the nucleuses,which could be suppressed by the NF-κB inhibitor, PDTC(P<0.05).Conclusions The expression levels of SDF-1 and CXCR4 are increased in degenerative NP tissue.The SDF-1/CXCR4 axis is considered to induce apoptotic of human degenerative NPCs via the NF-κB signaling pathway.

BACKGROUNDPachymic acid (PA), a natural triterpenoid, is known to significantly reduce cell proliferation and induce apoptosis in vitro through initiation of mitochondria dysfunction. However, its effect on immune cells and anti-rejection following organ transplantation remains unknown.

METHODSIn this study, we investigated PA as a treatment to control acute rejection occurred in rats which had accepted cardiac transplantation. We measured apoptosis of peripheral blood lymphocyte (PBLs), and CD4(+) lymphocyte, as well as the number of CD4(+) and CD8(+) lymphocytes and the effect of PA on acute rejection in rats 7 days after cardiac transplantation.

RESULTSPA treatment might decrease allograft rejection, protect PBLs from apoptosis, and reduce the percentage of CD8(+) lymphocyte. PA neither regulated the number nor the apoptosis rate of CD4(+) lymphocyte.

CONCLUSIONSOur findings indicated that PA has an anti-apoptotic effect acting on PBLs through a novel mechanism involving stabilization of the PBLs mitochondrial transmembrane potential, an anti-rejection effect in rats after cardiac transplantation and an inhibiting effect to CD8(+) lymphocyte.

Animals ; Apoptosis ; drug effects ; Graft Rejection ; drug therapy ; Heart Transplantation ; Lymphocytes ; drug effects ; Male ; Membrane Potential, Mitochondrial ; drug effects ; Rats ; Rats, Sprague-Dawley ; Rats, Wistar ; Transplantation, Homologous ; Triterpenes ; therapeutic use

BACKGROUNDCelecoxib, a selective cyclooxygenase-2 (COX-2) inhibitor, is a non-steroidal anti-inflammatory drug used as an adjuvant to sensitize cancer cells to apoptosis. However, in rats suffering from acute rejection, celecoxib reduced apoptosis of myocardial cells. We hypothesize that celecoxib reduces myocardial apoptosis either by inducing apoptosis in peripheral blood lymphocytes (PBLs) or by altering the percentage of CD4(+) and CD8(+) lymphocytes.

METHODSAfter cardiac transplantation, rats were administered intragastrically with celecoxib (50 mg/kg per day) for 3, 5 or 7 days, at which time the graft was excised and evaluated for organ rejection. In addition, PBLs were isolated from the blood to determine PBLs apoptosis, and the percentage of CD4(+) and CD8(+) lymphocytes.

RESULTSCelecoxib induced PBLs apoptosis in 3 days, but protected the cells from apoptosis at 5 and 7 days. Also, the percentage of CD4(+) lymphocytes decreased only at 3 days, but a reduction in the percentage of CD8(+) lymphocytes was not seen until 7 days after the transplant surgery. Celecoxib only decreased acute rejection at 5 days, with no discernible difference in rejection after 3 and 7 days.

CONCLUSIONSThe results suggested that celecoxib displayed a multiple physiological function in a time-dependent manner.

Animals ; Anti-Inflammatory Agents ; pharmacology ; Apoptosis ; drug effects ; Celecoxib ; Cells, Cultured ; Graft Rejection ; immunology ; prevention & control ; Heart Transplantation ; immunology ; Lymphocytes ; cytology ; drug effects ; immunology ; Male ; Membrane Potential, Mitochondrial ; drug effects ; Pyrazoles ; pharmacology ; Rats ; Rats, Sprague-Dawley ; Rats, Wistar ; Sulfonamides ; pharmacology ; Transplantation, Homologous ; immunology

Repeated acute intermittent hypoxia promotes the expression of growth factors and neurotrophic factors, as well as the key molecules for neural protection and plasticity. Hypoxic preconditioning may improve the survival rate of transplant-ed stem cells and protect the neural function. Meanwhile, acute intermittent hypoxia can be an approach to improve re-spiratory function after spinal cord injury. Hyperbaric oxygen may improve the neural tolerance to hypoxia and isch-emia, to protect the structure of cells and tissues, and promote the neuranagenesis. It is important to study the role of hy-poxic and hyperoxic preconditioning in spinal cord injury.