Induced pluripotent stem cell is a landmark in the stem cell study field, which has rapidly developed in the past 10 years.By obtaining induced pluripotent stem cells from somatic cell, and then differentiating into cardiomyocyte, various cardiomyocyte disease models could be established,which can be used for research of disease mechanisms, drug screening and gene therapy.This review introduces the successfully established cardiomyocyte disease models from human induced pluripotent stem cells, and points out the problems and prospects.

Breast Neoplasms ; diagnostic imaging ; radiotherapy ; Female ; Humans ; Imaging, Three-Dimensional ; Mastectomy, Segmental ; Postoperative Period ; Radiotherapy Planning, Computer-Assisted ; methods ; Respiration ; Surgical Instruments ; Tomography, X-Ray Computed ; methods ; Tumor Burden

Adult ; Breast Neoplasms ; diagnostic imaging ; radiotherapy ; surgery ; Cone-Beam Computed Tomography ; Female ; Humans ; Mastectomy, Segmental ; Postoperative Period ; Radiotherapy Planning, Computer-Assisted ; methods ; Respiration

Objective Observed the mobilization effects、 the safety and feasibility of autologous circulating blood stem cell by G-CSF in acute myocardial infarction (AMI). Methods 45 patients with AMI were randomly allocated to receive either inclusive type Granulocyte Colony-Stimulating Factor (G-CSF), to mobilize the stem cell. The patients received the dose of G-CSF 300?g-600?g/day, by hypodermic injection, and the duration of applying G-CSF was 5 days. In the process of the mobilization of the circulating blood stem cell, prior to applying G-CSF and on the 3rd、4th、5th、6th、7th after applying G-CSF, the white blood cell (WBC) and CD34+ cell count in the circulating blood should be observed; and the following side effects also should be paid attention to, such as: bone pain, tetter, fever, gastrointestinal effects( nausea 、vomit、 coprostatis ),deteriorated of angina or heart failure and some rare effects(spontaneous spleen rupture, severe purulent infection, hypercoagulable state, autologous immune diseases). Results Prior to applying G-CSF and the 3rd、4th、5th、6th、7th after applying G-CSF, the counts of WBC were (8.42?2.59)?10 9/L、(31.28?8.34)?10 9/L、(35.24?9.38)?10 9/L、(37.03?13.07)?10 9/L、(35.34?14.68)?10 9/L、(20.35?9.22)?10 9/L;the counts of CD34+ cell were (14.89?11.46)?10 6、(67.78?50.88)?10 6、(124.79?136.13)?10 6、(208.92?206.97)?10 6、(206.10?184.57)?10 6、(66.63?56.56)?10 6;The peak of curve that WBC and CD34 + cell count changed with applying days was on the 5th .The count of CD34 + cell in the circulating blood was positive referent with the count of WBC in the circulating blood(r=0.835);was not reference with age、 sex、body weight、and the onset time of AMI. There were total 17 complications during the mobilization of circulating blood stem cell. The incidence of complications during mobilization is 37.8%(17/45), including bong pain being 15.6%(7/45)、fever being 6.7 %(3/45)、pale being 4.4 %(2/45)、tetter being 4.4 %(2/45)、deterioration of heart failure being 4.4 %(2/45),spleen thrombosis being 2.2 %(1/45).No death happened. Conclusion : In patients with AMI, the mobilized peak of WBC and CD34 + cell counts changed with applying days was at the 5th, and the count of CD34 + cell in the circulating blood was positive referent with the count of WBC in the circulating blood(r=0.940),was negative referent with body weight of patients(r=-0.398). And mobilization of autologous circulating blood stem cell was feasible and safe.

Electromyography ; Electrophysiology ; Genetic Testing ; Humans ; Neuromuscular Diseases ; diagnosis ; genetics

Acupuncture Therapy ; Adult ; Aged ; Bloodletting ; Combined Modality Therapy ; Female ; Humans ; Hypesthesia ; therapy ; Male ; Middle Aged ; Moxibustion

Objective To summarize the surgical skills of the pancreaticoduodenectomy via mesenteric approach for the treatment of duodenal gastrointestinal stromal tumors (GISTs).Methods The clinical data of 1 patient with huge duodenal GIST combined with gastrointestinal hemorrhage and liver metastasis who was admitted to the Second Affiliated Hospital of Harbin Medical University in June 2014 were retrospectively analyzed.The patient had continuous bleeding before the operation.The results of computed tomography (CT) showed that there was a solid tumor below the liver and in front of the right kidney,with the size of 12.2 cm × 8.1 cm,inferior vena cava was squeezed by the tumor,a solid tumor was detected in the right lobe of liver,and the colon was suspiciously invaded by the tumor.The patient received pancreaticoduodenectomy,right hemicolectomy and right lobectomy of liver metastases.The patient was followed up by out patient examination and telephone interview up to August 2014.Results The operation time,volume of blood loss and volume of red blood cell (RBC) transfusion were 420 minutes,800 mL and 2 U,respectively,with a full recovery of patients.The duodenal GIST with metastasis tumor and necrosis located at the colon,pancreatis,liver and renal hilum was confirmed by pathological diagnosis.The life quality of the patient was good by follow-up at postoperative month 3.Conclusion In the pancreaticoduodenectomy via mesenteric approach,surgeons perform vigorously the method of mesenteric approach at the first stage of operation,it could maximally reduce the risk of operation and the volume of blood loss.

Objective To construct several human proinsulin mutants plasmid related to diabetes and to express in INS-1 (Insulin secreting beta cell derived line) cell. Methods Human mild proinsulin gene was used as template , and site-directed mutagenesis PCR was employed to generate four human proinsulin plasmid mutants. Each mutant plasmid was sequenced then transfected with empty plasmid and mild plasmid into INS-1 cell by liposome 2000. Insulin value in each cell solution was determined by radioimmunoassay. Results Proinsulin mutants plasmid were confirmed by sequencing. In-sulin values in culture solution of H-C(B19)G、H-L(B11)P、H-R(S6)C mutants are less than those in wild type and H-F (B25)L(P＜0.05). Comparison of insulin values between H-C(B19)G、H-L(B11)P、H-R(S6)C groups were not statistically significant(P>0.05), and all these three groups showed no significant differences with empty plasmid group statistically (P>0.05).Insulin value of H-F(B25)L was of no significant differences statistically with empty plasmid(P>0.05). Conclu-sion Four human proinsulin mutants plasmid were constructed and expressed successfully in INS-1 cell, and different mu-tants plasmid result in diabetes through different mechanism.

Objective To investigate the charateristics of pathological changes in hippocampal subregions in rats with epilepsy induced with different doses kainic acid(KA) ,discuss the etiology and pathway of epileptic wave.Methods 30 male Wistar rats were randomly divided into control group,low(0.025 ?g) and high(0.1 ?g) dose KA injection groups with 10 rats each.KA was focally injected into the right amygdala by a glass micropipette connected to an air pressure system to make epilepsy model.The pathological characteristics in hippocampal subregions in rats with epilepsy induced with different doses KA were observed.Results Compared with control group,high dose KA injection mainly caused neuron loss in the CA3 region,while pyramidal and dentate granule cells were evenly distributed with normal shape and size.Low dose KA injection caused severe damage in both CA1 and CA3 regions.Dentate granule cells didn't show any pathological change and neuron loss in low dose injection.Conclusion The pathological changes in hippocampal subregions in rats with epilepsy induced with KA are different with different doses KA,it might be related to the pathway of epileptic wave and the specific properties of hippocampus.

Objective To survey the epidemiological situation of asthma in remission stage in Liaoning province,and provide evidence for preventing and treating asthma.Methods 800 patients of asthma in the remission stage were investigated through the questionnaire investigation.Results Onset age of asthma in Liaoning province was 30～40 years old.The sex ratio between male and female was 1 ∶ 1.34.The number of staff was the highest (25.75％).Most of the course of asthma was 1～5 years (33.50％).The number of patients who often receive treatments was 59 (7.38％)and the number of patients with allergy history was 531 (66.38％).Conclusion Prevention,management and treatment of asthma should be strengthened.