Acute Coronary Syndrome ; etiology ; Aortic Valve Insufficiency ; Female ; Heart Valve Prosthesis ; adverse effects ; Humans ; Middle Aged ; Prosthesis Failure

Objective To investigate the effect of insulin on D_5 dopamine receptor expression and function in renal proximal tubule (RPT).Methods Immortalized RPT cells and D_5 receptor transfected HEK293 (HEK-D_5) cells were used in the study to investigate the effect of insulin on D_5 receptor expression and function,and those effects were compared in RPT cells from Wistar-Kyoto (WKY) rats and spontaneously hypertensive rats (SHR). The function of D_5 receptor was determined by measurement of the Na~+-K~+-ATPase activity in HEK-D_5 cells. Results Insulin increased D_5 receptor protein expression in a concentration and time-dependent manner in WKY RPT cells,but not in SHR.The basal level of D_5 receptor expression was higher in WKY cells than that in SHR cells. Stimulation with fenoldopam(D_1-like dopamine receptor agonist) inhibited the Na~+-K~+-ATPase activity;pretreat- ment with insulin increased the inhibitory effect of fenoldopam on Na~+-K~+-ATPase activity in HEK-D_5 cells. Conclusion The abnormal regulation of insulin on D_5 receptor expression and function might be involved in the path- ogenesis of essential hypertension.

Objective To evaluate the efficacy of ~(125)I radioactive seeds implantation and ~(125)I plaque brachytherapy for oral carcinoma. Methods Eighteen patients with oral carcinoma confirmed by cytology or histopathology were included in this study, Twelve patients with tongue cancer and six patients with gingival carcinoma, there were 20 ulcerative lesions and 10 metastatic cervical lymph nodes. The mean diameter is (2.3±0.7)cm and(2.8±1.7)cm respectively. The patients were treated with both interstitial implantation of ~(125)I seeds and ~(125)I plaque brachytherapy or with ~(125)I plaque brachytherapy only according to patient's individual conditions.The metastatic cervical lymph nodes were treated with CT-guided interstitial implantation of ~(125)I seeds.The sizes of ulcerative lesions and lymph nodes were observed at 1,3,6 months following treatment,and statistical analysis of the sizes of ulcerative lesions were evaluated by paired t-test.Results After 1,3,6 months follow-up,The mean diameters of ulcerative lesions were(2.1±0.6)cm(t=3.559,P＜0.01),(1.7±0.5)cm(t=7.609,P＜0.01),(0.7±0.6)cm(t=11.508,P＜0.01),the cervical lymph nodes showed reduced size. Furthermore, PET-CT images showed a significant decrease in the metabolic activity of treated tumor. After six months, the focus of infection were healing in 8 patients, the cervical lymph nodes of one patient relapsed after ~(125)I implantation again. Patients were followed for 7 to 28 months, all patients were still alive. Conclusion Interstitial ~(125)I radioactive seeds implantation and ~(125)I plaque brachytherapy provide an effective, safe treatment for oral cancer.

Objective To evaluate the relationship between sternum protection and bone marrow suppression in postoperative radiotherapy for esophageal carcinoma. Methods Total of 98 postoperative patients with thoracic esophageal carcinoma were randomly divided into experimental group (52 cases) and control group (46 cases). All patients were given intensity-modulated radiotherapy (IMRT), with the dose of 50-50.4 Gy. The patients in experimental group were irradiated by 6 fields (4-fields in front, 2-fields behind) which were crossed to avoid direct exposure to the sternum. The patients in control group were irradiated by 5 fields (3-fields in front, 2-fields behind) with front-middle of the field passing through the sternum. Concurrently all patients received 2 cycles of cisplatin chemotherapy. Results Dmean, V20 and V30 of the sternum in the experimental group were (20.21 ±3.60) Gy, (40.78 ±7.19) % and (33.78 ±9.44) %, which were lower than those in the control group [(30.91±5.21) Gy, (81.01±4.81) %, (51.60±6.84) %], respectively (P<0.05). However, the volume and dose distribution of lung, spinal cord and heart were similar between the two groups (P> 0.05). Both the incidence rates of bone marrow suppression at 14th day and 35th day after radiotherapy were significantly higher in the control group (52.2%, 73.9%) than those in the experimental group (28.8 %, 50.0 %) (P< 0.05), and the incidence rate of bone marrow suppression at 7th day after radiotherapy was similar between the two groups. Conclusion Protecting and sketching for sternum in postoperative radiotherapy for esophageal carcinoma can reduce the incidence of bone marrow suppression effectively, which would not increase the radiation dose in the lung, heart and spinal cord.

Objective:To investigate the effect of huaier granule combined with docetaxel + epirubicin + cyclophosphamide (TEC) neoadjuvant chemotherapy on the disease control rate and the levels of extracellular fragment of human epidermal growth factor receptor 2 (HER2-ECD) and tumor abnormal protein (TAP) in patients with advanced breast cancer.Methods:From April 2013 to June 2016, 94 patients with advanced breast cancer in Shengjing Hospital Affiliated to China Medical University were selected and randomly divided into observation group ( n=47) and control group ( n=47). The control group was treated with TEC neoadjuvant chemotherapy, and the observation group was treated with TEC neoadjuvant chemotherapy combined with huaier granules for 12 weeks. The curative effect, incidence of adverse reactions, cellular immune function indexes (CD8 + , CD4 + , CD4 + /CD8 + ), serum HER2-ECD and TAP levels were compared before and 12 weeks after treatment. The patients were followed up for 3 years after treatment, and the 1-year, 2-year and 3-year survival rates were compared between the two groups. Results:After 12 weeks of treatment, the disease control rate of the observation group was higher than that of the control group, with statistically significant difference ( P<0.05); during the treatment, the incidence of gastrointestinal reaction, neutropenia, thrombocytopenia and abnormal liver function of the observation group was lower than that of the control group, with statistically significant difference ( P<0.05); after 12 weeks of treatment, the serum CD8 + level of the observation group was lower than that of the control group, and the serum CD4 + , CD4 + /CD8 + level was higher than that of the control group, with statistically significant difference ( P<0.05); after 12 weeks of treatment, the serum levels of HER2-ECD and TAP in the observation group were lower than those in the control group, with statistically significant difference ( P<0.05); the 3-year survival rate in the observation group was higher than that in the control group, with statistically significant difference ( P<0.05). Conclusions:Huaier granules combined with TEC neoadjuvant chemotherapy in patients with advanced breast cancer can reduce serum HER2-ECD, TAP levels, which can enhance the immune function of the body, reduce the toxic and side effects, improve the long-term survival rate, and have a significant effect.

BACKGROUND: Osteochondral lesion of the talus is a common disease of foot and ankle surgery, which has the characteristics of high morbidity, high misdiagnosis rate and difficulty in curing. OBJECTIVE: To summarize the etiology, clinical manifestations, diagnostic methods, clinical grading, treatment methods, and new therapies such as cell therapy and tissue engineering for osteochondral lesion of the talus.METHODS: The first author retrieved PubMed databases for relevant articles. The keywords were "talus, cartilage". Initially, 535 articles were retrieved, and finally 70 articles were included in result analysis. RESULTS AND CONCLUSION: Trauma is still considered to be the main pathogenic factor of talus cartilage injury. According to the imaging findings, the clinical scope of talar cartilage injury can be accurately determined. The clinically applied therapies have certain shortcomings and limitations. Tissue engineering-based therapies are currently the most likely to cure osteochondral lesion of the talus.

Surface transcutaneous electric nerve stimulation(TENS) was applied to treat the spasiticity resulting from spinal cord injury(SCI) in the acupoints of the subjects with SCI in order to oberve thetranscient and long-term effect of the treatment Fand its mechanism will be discussed in this paper. The results show that: 1 )more significant effect in relieving the spasiticiy was got by stimulating in high frequencyfor 30minutes,while less effect in low frequency(2Hz) ; 2)the effect in high frequency was partially ostracized by naloxone; 3)the effect in high frequency lasted for a long time i 4)compared with lumbar and sacralstimulation,the acupoint stimulation lasted for the longest time. This study also gets a hypothesis that highfrequency TENS in acupoints improves dynorphin in CSF to release and significantly relieve the spasiticityby kappa opioid receptor which decreases the excitment of anterior motor neuron.

The oncogenic product of BCR-ABL is an abnormal tyrosine kinase that causes chronic myeloid leukemia (CML). With further research into the pathogenesis of CML, the discovery of compounds that selectively inhibit abnormal BCR-ABL tyrosine kinases is a research focus worthy of attention. The first three generations of BCR-ABL inhibitors are orthosteric inhibitors, which competitively block the binding of ABL protein tyrosine kinase to ATP and prevent it from activating downstream signals. The fourth-generation BCR-ABL inhibitors allosterically inhibit ABL protein tyrosine kinase by binding to the myristoyl pocket, providing greater selectivity and maintaining activity against drug-resistant mutations proteins. Novel drug design strategies such as proteolytic targeting chimera (PROTAC), covalent inhibitors and dual targeting inhibitors also provide new directions for the development of BCR-ABL kinase inhibitors. This paper reviews recent research advances on BCR-ABL kinase inhibitors and discusses drug design strategies for various novel BCR-ABL inhibitors.

OBJECTIVETo investigate the distribution of GAD67 and the co-localization with bNOS in the main olfactory bulb of GAD67-GFP knock-in mouse.

METHODSPolymerase chain reaction was applied to identify the genotype of GAD67-GFP knock-in mouse, the animals were sacrificed and frozen sections of olfactory bulb were prepared. The Nissl-staining was performed to show an framework of the neuron in the olfactory bulb. The distribution of GAD67 and co-localization with bNOS were detected by immunofluorescence technique.

RESULTSThe proportion of GAD67-positive cells among DAPI-positive cells were (42.98 ± 0.92)% in glomerular layer, (23.64 ± 0.84)% in mitral cell layer and (77.75 ± 0.84)% in granule cell layer; the bNOS-positive cells mainly existed in glomerular layer and mitral cell layer, very few in granule cell layer. No co-localization of GAD67 and bNOS in granule cell layer and mitral cell layer was found, but there was dispersed distribution in glomerular layer.

CONCLUSIONGAD67-positive neurons mainly appear in glomerular layer and granule cell layer, and the bNOS is mostly expressed in glomerular layer and mitral cell layer; while the co-localization of GAD67 and bNOS only occurs in glomerular layer of olfactory bulb.

Animals ; Gene Knock-In Techniques ; Glutamate Decarboxylase ; genetics ; metabolism ; Green Fluorescent Proteins ; genetics ; metabolism ; Mice ; Mice, Transgenic ; Neurons ; metabolism ; Nitric Oxide Synthase Type I ; metabolism ; Olfactory Bulb ; metabolism ; Tissue Distribution

OBJECTIVETo investigate the effects of ischemic postconditioning on the expression of HO-1 in the liver graft ischemia and reperfusion injury in rats.

METHODSFifty-six male SD rats were randomly divided into four groups: sham-operation group (sham) (n = 8), ischemia and reperfusion group (I/R)(n = 16), ischemic postconditioning group (IPo) (n = 16) and inhibitor of HO-1 group (ZnPP) (n = 16). Donor livers were preserved in 0 - 4 degrees C normal saline, and the period of cold preservation and anhepatic phase were 90 min and 15 min. At 6 h after portal vein reperfusion, blood samples were obtained from the abdominal aorta to determine the level of serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), simultaneously liver tissues were taken to determine the level of malondialdehyde (MDA), superoxide dismutase (SOD) and heme oxygenase-1 (HO-1) mRNA. The changes of liver tissues were observed by HE staining and electron microscope.

RESULTSSOD activity was significantly lower whereas MDA content was significantly higher in I/R group than that in Sham group (P < 0.05). The expression of HO-1 in I/R group was higher than that in Sham group (P < 0.05). MDA content was significantly lower whereas SOD activity was significantly higher in IPO group than that in I/R group (P < 0.05), and the expression of HO-1 in IPO group was significantly stronger than that in I/R group (P < 0.05). SOD activity and the expression of HO-1 were significantly lower whereas MDA content was significantly higher in ZnPP group than that in I/R group (P < 0.05). The changes of liver tissues also proved the previous results.

CONCLUSIONSIschemic postconditioning attenuates liver graft injury induced by I/R in rats. The mechanism might be related with the induction of HO-1 and enhancement of liver graft antioxidation.

Animals ; Disease Models, Animal ; Heme Oxygenase (Decyclizing) ; metabolism ; Liver ; blood supply ; metabolism ; pathology ; Liver Transplantation ; Male ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Reperfusion Injury ; metabolism ; pathology