Gastrointestinal stromal tumor( CIST) is the most common form of mesenchymal tumor of the gastrointestinal tract. Most GISTs characteristically harbor activating mutations of c-kit or PDCFRA( platelet derived growth factor receptor alpha, PDGFRA). All CISTs should be regarded having malignant potential. Tumor size and mitotic count, as two basic progonstic factors for primary CISTs, are largely site dependent. Most c-kit mutations have been found in exon 11,9,13,17 while PDGFRA mutations re found in exon 18,12,14.The sites and types of mutions are associated with the prognosis of CIST. Histopathology and immunohistochem-istry are another two factors predicting tumor outcome.

Natural killer group 2,member D (NKG2D) is a C-typelectin-like activating receptors on natural killer cells surface. NKG2D engaging with the ligands on tumor cells surface can eliminate tumor cells. However,there must exist immune escape mechanisms in tumor mice and cancer patients. Recently, molecular biological techniques are used to regulate the expression of the receptors and ligands to break the immune evasion.

Proteasome pathway is another major pathway of protein degradation in addition to lysosome in eukaryotic cell ,which involved a number of physiological functions regulation in cell .Prokaryotic ubiquitin-like protein was found in My-cobacterium tuberculosis in 2008 .With the effect of co-factor Dop ,PafA and Mpa ,Pup can mark a variety of protein ubiquitina-tion followed by importing them into proteasomal degradation .The target protein of Pup-proteasome system like FabD ,PanB , Ino1 ,Icl ,SodA ,and MtrA are involved with metabolism ,signal transduction pathways ,virulence factors ,pathogenicity and the persistence of bacteria in the host cell .Proteasome inhibitor make the function of proteasome restricted and the accumula-tion of Pup’s labeled substrate result in changes in the expression of gene indirectly ,which impacted the ability of resistance to outside pressure and the pathogenicity of Mycobacterium tuberculosis . The finding Pup-proteasome system reveals a novel mechanism of protein degradation in prokaryotes ,which is expected to become a new target of treatment of anti-TB drugs . Here ,we summarize the progress on the Pup-proteasome system in Mycobacterium tuberculosis .

Objective To investigate the features,diagnosis and treatment of plasma cell mastitis,looked forward to improving the awareness of plasma cell mastitis and raising the cure rate.Methods Retrospectively analysized the clinical data of 43 patients suffering from plasma cell mastitis from March 2000 to January 2013,to summarize the methods of diagnosis and treatment.Results All forty-three patients were treated by surgery.Thirty-nine patients were undergone partial resection of breast.Four patients recurred after simple incision and drainage having been misdiagnosed breast abscess initially.Then the four patients adopted partial resection of breast.All forty-three patients were postoperative followuped from 9 months to 3 years,three cases with reoperation of recurrence were no relapse again.Conclusions The clinical feature of plasma cell mastitis is sophisticated with misdiagnosis and mistreatment.The final diagnosis depends on pathological examination.Operation is the effective method to cure the disease.It is very important to select the correct timing of surgery and the operative method for plasma cell mastitis.

This paper reviews the long-term care policy in Japan and discusses successes and challenges in order to provide policy guidelines for China. All Japanese adults aged 65 or over are covered by the long-term care in-surance ( LTCI) program and are eligible for both in-home and institutional-care services following a thorough, sys-tematic care certification process. The program is financed by a mix of general tax revenues from the three levels of gov-ernment , income-tested premiums, and standardized co-payments. A key success of the policy is its universal and compre-hensive coverage. Notwithstanding this success, increasing costs remain a challenge as Japan’s population ages and the number of LTCI users increases. Learning from the experience of Japan, China should establish a long-term care system, which covers all the aged population, mainly focuses on in-home care, and qualifies social funding to invest.

Objective To explore the potential risk of category Ⅱ fetal heart rate(FHR) tracing according to the latest electron-ic fetal monitoring tracings .Methods The prenatal fetal heart rate tracings in 400 parturients with hospitalized delivery in this hos-pital from November 2011 to October 2012 were classified by category .Among them ,the pregnancy outcomes were compared be-tween the category Ⅰ FHR tracings(control group) and category Ⅱ FHR tracings(observation group) .Results The case number of meconium-staining amniotic fluid ,cesarean rate ,hypamniony and umbilical cord abnormality was significantly higher than that of the control group with statistical difference between the two groups (P<0 .05);the case number of neonatal asphyxia ,aging of pla-centa and neonatal death had no statistical difference between the two groups (P>0 .05);among the groups with various fetal heart monitoring abnormalities ,the rate of meconium-staining amniotic fluid in the decreased variation group was significantly higher than that in the fetal tachycardia group ,the difference showing statistical significance (P<0 .05);the rate of meconium-staining amniotic fluid in the fetal tachycardia group was significantly higher than that in the prolonged acceleration and ineffective acceleration group with statistical difference (P< 0 .05);the pregnant outcomes had no statistical differences among the other groups .Conclusion Compared with the category Ⅰ FHR tracings ,the category Ⅱ FHR tracings indicate a potential risk to the fetus ,which need to strengthen the prenatal and intrapartum fetal monitoring .

Carcinoma ; classification ; pathology ; Consensus ; Humans ; Thymoma ; classification ; pathology ; Thymus Neoplasms ; classification ; pathology ; World Health Organization

BACKGROUND:Neuronal calcium sensor-1 protein has a variety of different neuronal functions and has a high distribution in different areas of the brain. A single residue R102Q mutation in human neuronal calcium sensor-1 protein is demonstrated to be associated with autism disease. The experiment studies have reported that this R102Q mutant has essential conformation changes in local area of the neuronal calcium sensor-1. OBJECTIVE: To wel understand the specific reasons of the R102Q mutation of the neuronal calcium sensor-1 to the conformational dynamic changes. METHODS:Six independent extensive al-atom molecule dynamic simulations during 0-450 ns were conducted. RESULTS AND CONCLUSION: We have found that (1) there is no obvious recombination during the simulations between wild type and mutant type, but R102Q mutant alters the helix and makes the structure of the protein more stable; (2) R102Q mutation alters the salt bridges, reduces the flexibility of L2, and makes L3 extend in hydrophobic crevice. These results reveal that the helix plays an important role in the structural stability, and salt bridge is the important reason for the dynamic changes of neuronal calcium sensor-1 protein. This study may provide a structural insight into the function of protein deficiency associated with R102Q mutant.

Objective To study the adverse effect of omethoate on DNA in mice testicle cells in vivo.Methods 24 mice were randomly divided to 4 groups:control(no omethoate),1,2 and 4 mg/kg.omethoate was given by gavage one time a day for consecutive 7 days.DNA damage was detected by single cell gel electrophoresiss (SCGE).Results At the concentration of 1,2,4 mg/kg,omethoate induced DNA damage in mice testicle cells in vivo with an obvious dose-effect relationship(r=0.969 5).Conclusion Omethoate may cause DNA damage in mice testicle cells.

Objective To explore the effect of continuity of midwifery service model on delivery outcomes in pregnant women. Methods From January 2015 to June 2016,100 single pregnant women with full-term and cephalic presentation who accepted midwife outpatient education were selected from our hospital and divided into observation group, at the same time,100 cases of full-term and cephalic presentation accepting obstetrics regular check as control group. Both delivery methods and total labor time were compared between two groups; the rates of episiotomy, weight gain during pregnancy, postpartum hemorrhage, neonatal asphyxia and macrosomia were all observed. Results The observation group maternal weight gained, the total labor time were (12.26±0.95) kg, (445.21±246.34) min, the control group were (14.48± 1.89) kg, (642.26±258.81) min, there wwa significant difference (t=-10.534,-3.456, P < 0.01).The observation group cesarean section rate, postpartum hemorrhage rate, the rate of fetal macrosomia were 29%(29/100), 2%(2/100), 3%(3/100), the control group were 45%(45/100),10%(10/100),12%(12/100), there was significant difference (χ2=7.040, 5.674, 5.838, P<0.05). In the observation group, the rate of perineal resection were 26% (26/100) and 0 respectively, the control group were 30%(30/100) and 2% (2/100), there was no difference between the two groups (χ2=1.109, 2.020, P > 0.05). Conclusions Continuous care provided by midwife can effectively promote natural birth, reduce the incidences of macrosomia and postpartum hemorrhage, enhance the quality of obstetric services, is worth promoting in clinical application.