ObjectiveThe antitumor activity of sesquiterpenoid M36 isolated from Myrrha against human hepatoma HepG2 cells was investigated in this study. MethodHepG2 cells were treated with M36 at different concentrations （0， 2， 4， 6， 8， 10 μmol·L^-1）. Firstly， the effects of M36 on the proliferation of human hepatoma HepG2 cells were detected by methyl thiazolyl tetrazolium （MTT）， colony formation assay， and EdU proliferation assay. Hoechst staining， flow cytometry analysis， and Western blot were used to explore the effect of M36 on the apoptosis of human hepatoma HepG2 cells. Acridine orange staining and western blotting were used to examine the effect of M36 on autophagy in HepG2 cells. Finally， Western blot was used to detect protein expression of cancer-related signaling pathways. ResultCompared with the blank group， M36 treatment significantly inhibited the proliferation of human hepatoma HepG2 cells （P<0.01）， and the half inhibitory concentration （IC₅₀） value of M36 for 48 h was 5.03 μmol·L^-1， in a dose- and time-dependent manner. M36 was also able to induce apoptosis and autophagy in human hepatoma HepG2 cells. After treatment with 8 μmol·L^-1 M36 for 48 hours， the apoptosis rate of HepG2 cells was （42.03±9.65）% （P<0.01）. Compared with the blank group， HepG2 cells treated with 4 and 8 μmol·L^-1 M36 for 48 h had a significant increase in cleaved poly ADP-ribose polymerase （cleaved-PARP） protein levels （P<0.01）. Acridine orange staining showed that autophagy was significantly activated in HepG2 cells treated with 4 and 8 μmol·L^-1 M36 for 48 h compared with the blank group （P<0.01）， which was further verified by the up-regulation of microtubule-associated protein 1 light chain 3 Ⅱ （LC3 Ⅱ）. Western blot results showed that compared with the blank group， the levels of phosphorylated extracellular regulated protein kinase （p-ERK）， phosphorylated p38 mitogen-activated protein kinase （p-p38 MAPK）， phosphorylated c-Jun N-terminal kinase （p-JNK）， and its downstream nuclear transcription factors c-Jun and p-c-Jun protein were significantly increased in M36 group （P<0.05， P<0.01）. The mechanism may be related to the up-regulation of MAPK signaling pathway. ConclusionThe sesquiterpenoid M36 isolated from Myrrha inhibits the proliferation of human hepatoma HepG2 cells and promotes apoptosis and autophagy， which may be related to the activation of the MAPK signaling pathway.

Background::Heterotaxy (HTX) is a thoracoabdominal organ anomaly syndrome and commonly accompanied by congenital heart disease (CHD). The aim of this study was to analyze rare copy number variations (CNVs) in a HTX/CHD cohort and to examine the potential mechanisms contributing to HTX/CHD.Methods::Chromosome microarray analysis was used to identify rare CNVs in a cohort of 120 unrelated HTX/CHD patients, and available samples from parents were used to confirm the inheritance pattern. Potential candidate genes in CNVs region were prioritized via the DECIPHER database, and PNPLA4 was identified as the leading candidate gene. To validate, we generated PNPLA4-overexpressing human induced pluripotent stem cell lines as well as pnpla4-overexpressing zebrafish model, followed by a series of transcriptomic, biochemical and cellular analyses. Results::Seventeen rare CNVs were identified in 15 of the 120 HTX/CHD patients (12.5%). Xp22.31 duplication was one of the inherited CNVs identified in this HTX/CHD cohort, and PNPLA4 in the Xp22.31 was a candidate gene associated with HTX/CHD. PNPLA4 is expressed in the lateral plate mesoderm, which is known to be critical for left/right embryonic patterning as well as cardiomyocyte differentiation, and in the neural crest cell lineage. Through a series of in vivo and in vitro analyses at the molecular and cellular levels, we revealed that the biological function of PNPLA4 is importantly involved in the primary cilia formation and function via its regulation of energy metabolism and mitochondria-mediated ATP production. Conclusions::Our findings demonstrated a significant association between CNVs and HTX/CHD. Our data strongly suggested that an increased genetic dose of PNPLA4 due to Xp22.31 duplication is a disease-causing risk factor for HTX/CHD.

Objective A neuroblastoma(NB)liver transplantation model was established and compared with the adrenal orthotopic transplantation model to explore its characteristics.Methods 5× 105 SK-N-SH cells were implanted along the long axis of the left lobe of mouse livers with a micro-injection needle.The growth,metastasis,expression of related genes,and histopathological changes of tumors were detected after the modeling.Results The tumor formation rate in mice inoculated with tumor cells reached 100％after 21 days,and tumor growth,metastasis,related gene expression changes,and pathological characteristics were apparent.Conclusions In this study,a neuroblastoma liver transplantation model was successfully constructed via a relatively simple surgical method to provide a more suitable choice for future scientific NB experiments.

Neuroblastoma (NB) is one of the most common malignant solid tumors in children, ranks fourth in the incidence of pediatric tumors, and accounts for 15% of pediatric tumor deaths in children in China. Despite the development of new treatment options, the prognosis for high-risk patients is still poor. An animal model that can replicate the tumorigenesis of NB is an important tool for the prevention and treatment of NB. However, there are currently no animal models that can simulate all features of human NB. To provide a reference for the construction of animal models and treatment of NB, this article introduced several animal models of NB that have been extensively researched: the mouse, chick embryo chorioallantoic membrane, and zebrafish models. At the same time, it elaborated on the species, construction methods, characteristics, advantages and disadvantages, and research progress in NB.

Ulcerative colitis（UC）is a disease characterized by chronic persistent inflammation of the colorectal mucosa. Its complex pathological mechanism is related to immune inflammation and enhanced apoptotic activity. The Janus kinase（JAK）/signal transducer and activator of transcription（STAT）is an important regulatory pathway in the body's physiological function, which can regulate the release of intestinal pro-inflammatory factors and induce apoptosis, resulting in colon tissue damage. In the condition of UC, the biological activities and expression levels of JAK and STAT increased, and the tissue inflammatory response and apoptosis rate increased, which led to the destruction of intestinal mucosal tissues. At present, in the treatment of UC, glucocorticoids and immunosuppressants are mainly employed to reduce intestinal inflammation. Although they can block the progress of UC to some extent, the adverse reactions are severe. A large number of studies have shown that traditional Chinese medicine（TCM） has significant advantages in the prevention and treatment of UC and can significantly reduce the recurrence rate of this disease. In recent years, plenty of studies have been carried out to explore the role of TCM in the treatment of UC by regulating the JAK/STAT pathway. The results have shown that the JAK/STAT pathway is the key target pathway of TCM in the treatment of UC. Based on the etiology and pathogenesis of deficiency and excess, TCM regulates the JAK/STAT pathway by clearing heat, drying dampness, cooling and activating blood, invigorating the spleen, warming the kidney, and performing both tonification and elimination to maintain the balance between pro-inflammatory factors and anti-inflammatory factors, weaken colonic inflammatory response, inhibit apoptosis, and play a role in the treatment of UC. The present study analyzed the mechanism and effect of TCM in intervening in UC by targeting the JAK/STAT signaling pathway and summarized the molecular mechanisms of different cytokines such as interleukin-6（IL-6）, IL-10, IL-23, microRNA（miRNA）-146a, and suppressors of cytokine signaling 2/3（SOCS2/3） on many family subtypes of the JAK/STAT signaling pathway to facilitate the comprehensive understanding of researchers on the mechanism of TCM on the JAK/STAT pathway in UC, which is expected to provide a theoretical basis for the treatment of UC and further drug development.

Objective: To systematic evaluate the real experience of patients after falling during hospitalization and qualitative research on the cognition and demand for fall prevention will provide theoretical basis for patients, their families, medical staff and medical institutions to better carry out fall prevention. Methods: English databases such as PsycINFO, Medline, Embase, CINAHL, Cochrane, PubMed, and Chinese databases such as Chinese biomedical literature database, CNKI, Wanang database were retrieved by computer. Included qualitative studies on the emotional experience of fall of inpatients and their cognition and needs for fall prevention. The retrieval time limit was until November 1, 2018.The literature was evaluated using the quality evaluation criteria for qualitative research (2016) of the JBI evidence-based health care center, and the results were integrated using a pooled integration method. Results: A total of 8 studies were included, and 33 clear research results were extracted. Similar results were summarized and combined to form 7 new categories, which were integrated into 4 results. Results 1: psychological experience of hospitalized patients after falling down. Integration results 2: the causes of falls from the perspective of inpatients. Integration results 3: hospital fall prevention measures and evaluation from the perspective of inpatients. Integration result 4: inpatients expected to receive care from their families and help from medical staff. Conclusion Fall events seriously affect the mental health of patients; Patients′ cognition of falling is affected and changed by many factors. Fall prevention should shift from clinical focus to patient-centered and attach importance to the participation of family members.

Objective To analyze the clinical effect of pedicle screw fixation in the treatment of multi-segmental lumbar fracture and dislocation under the guidance of visualization technique. Methods A total of 21 patients with multi-segmental lumbar fracture and dislocation were selected from November 2012 to November 2013. Before the screw implantation, the structure of bilateral pedicle was observed through Mimics software and the implantation parameters were measured. The position of pedicle screws by postoperative CT scan, operation time, and the satisfaction of the patients were assessed. The percentages of anterior vertebral height and Cobb′s angle were measured before operation, 2 weeks and 8 months after operation. Results All patients were satisfied with informed consent score and the way of pedicle screw and the selection of plant were more reasonable. With better screw position, shorter operative time and less blood loss and adverse reactions, pedicle screw fixation achieved good effect. Conclusion With high security and considerable clinical value, pedicle screw fixation in the treatment of multi-segmental lumbar fracture and dislocation under the guidance of visualization technique has exact and good effecct.

Objective To observe the rates of local complications (bleeding/swelling) after trans-radial coronary intervention (TRI),to investigate possible impact factors,in order to provide guidance for the prevention of these adverse events.Methods A total of 198 cases who performed TRI at the department of interventional cardiology of the First Affiliated Hospital of Sun Yat-sen University from August to December,2011 were included in the present study.Data with regards to local complications were collected peri-operatively,by means of direct inquiry,point-of-care observation and measurements,and laboratory testing.Patients who developed complications and patients who did not were compared in terms of compressor position,loosening protocol and so on.Variables with statistical significance in univariate analysis were further included in Cox regression.SPSS 18.0 software was applied for all statistical analysis.Results The relative risks (RR) of the following two variables,namely whether or not the midpoint of compressor was on the midline of forearm,and the vertical distance from the horizontal plate of the compressor to the puncture site,were 2.602 and 1.403,respectively.Conclusions The midpoint of compressor on the midline of forearm,and the vertical distance from the horizontal plate of the compressor to the puncture site were major risk factors of local complications after TRI.

Objective To investigate influencing factors of puncture site bleeding after trans-radial coronary intervention (TRI)in order to provide guidance for prevention of post-operative bleeding complications.Methods A total of 198 patients with TRI hospitalized at the department of interventional cardiology of our hospital from August,2011 to December,2011 were recruited in the study.In the prospective study,they were divided into two groups:bleeding group(n=62)and non-bleeding group(n=136).The general status,medication,position of radial compressor,time of immobilization of the wrist joint,duration of loosing tourniquet between the first time and second time and number of laps,time for depression,duration for total release of compression device and laboratory testing were recorded as data.Cox regression analysis was done to explore factors influencing bleeding.Results The factors for puncture site bleeding after trans-radial coronary intervention included pre-operative medications,location of compression device at the midline of operated forearm,distance between the compression device midpoint and the second wrist crease,and time for total release of compression device,with their RR=2.001,3.521,1.470 and 0.999,respectively.Conclusion Factors contributing to increased risk of local bleeding at puncture site following TRI included pre-operative medications,location of compression device at the midline of operated forearm,distance between the compression device midpoint and the second wrist crease;whereas the time for total release of compression device may be a protective factor.

Objective The clinical curative effect observed the empress of the chemotherapy of malignant blood disease big mount of an application IL-2. Methods The review analyzes 65 malignant chemotherapy be over of the blood patient's (treatment set) juniorses to go a big quantity IL-2 treatments,(matched control) choose random of 98 sufferer's chemotherapy be overs don't carry on any immunity treatment behind. Results With visit be over the covariance relapse a rate: the treatment set is 28 %, the matched control is 42 %; Medium exist a period: the treatment set is 44(0～80) months, the matched control is 21(0～80) months. Conclusion For the leukemia, lymphoid lump etc. malignant blood patient the chemotherapy gives after ending big quantity IL-2 immunity treatment is a kind of to cure a method effectively, after maying reduce a sufferer a chemotherapy of relapse a rate, also hope extension existence a period.