BACKGROUND:Osteoblasts with high purity and activity are essential for bone metabolism research. OBJECTIVE:To explore a simple and effective culturing method of primary osteoblasts. METHODS:Osteoblasts were isolated from the parietal and frontal bones of newborn Sprague-Dawley rats using trypsin and collagenase digestion and tissue explant method. The morphology of osteoblasts was observed by inverted phase contrast microscope and transmission electron microscope;the cells was counted to draw the growth curve;the osteoblasts were identified by alkaline phosphatase BCIP/NBT staining and alizarin red staining. RESULTS AND CONCLUSION:The cells showed spindle, triangle or polygon shapes, having two or three protrusions. There were abundant mitochondria and endoplasmic reticulum under electron microscope, which presented the typical characteristics of osteoblasts. The cell growth was slow intially, accelerating at the 3rd day, and peaking at the 7th day. The cells were highly positive for alkaline phosphatase staining and were stained orangered through the alizarin red staining. To conclude, the cells isolated using enzymatic digestion combined with tissue explant method exhibit the typical characteristics and functions of osteoblasts, and this method is an ideal way to culture primary osteoblasts.

Comparing the cardiovascular disease in onion-growing region with those in non-onion-growing region, we found that, the people in these two regions are similar in their living standard, economic income and dietary habits and customs. The death rates caused by cardiovascular disease in these two regions were 0.57‰ and 1.67‰ respectively. There were markedly different incidences (p

The most common complication in patients with end-stage liver disease is mal-nutrition, which is caused by the metabolic disorders of sugar, protein and fat for the metabolic dys-function of liver during the perioperative period of liver transplantation. Nutritional support is very important during the liver transplantation.Perioperative nutritional support can improve the nutri-tional status of patients, increase the chance of liver transplantation, reduce postoperative mortality and improve outcome. By reviewing the recent interventions of perioperative nutrition support for liver transplantation, and analyzing nutritional screening and nutritional assessment tools and their advantages and disadvantages, the authors emphasize the rational assessment of early nutrition, provide reasonable and personalized parenteral and enteral nutrition support, especially for energy, protein and other nutrients. We also emphasize the importance of long-term reasonable nutrition support, monitoring and diet nutrition education in order to provide reference and suggestion for improving the nutritional status of liver transplantation patients and to provide evidence-based basis for constructing standardized perioperative nutrition support program of liver transplantation.

Objective To investigate the effect of non-accompany nursing on mood of caesarean section maternal. Methods A total of 320 caesarean section maternal were selected and divided into the observation group and the con-trol group with each group 160 cases. The both groups were given routine nursing. But the daily life nursing in the control group was performed by family members, the daily life nursing in the observation group was performed by hos-pital escort. The self-rating anxiety scale(SAS), salf-rating depression scale(SDS) were and satisfaction at 1 d before surgery and 6 d after surgery in two groups were recorded and compared. Results The SAS scores in two group at 1d before surgery were similiar. The difference was not statistically significant(P>0.05). But the SAS score of the observa-tion group(45.98±1.94) were lower than that of the control group(49.15±2.88), the difference was statistically signifi-cant(P<0.05). The SDS scores in two group at 1 d before surgery were similiar. The difference was not statistically significant(P>0.05). But the SDS score of the observation group(46.15±2.25)were lower than that of the control group(51.74±3.09), the difference was statistically significant(P<0.05). The satisfaction of the observation group was better than that of the control group. The difference was statistically significant(P<0.05). Conclusion Implementing the non-accompany nursing can effectively improve reduce the anxiety and depression of caesarean section maternal, contribute to improve the quality of rehabilitation.

Objective:To test whether the constructed intervention model of advance care planning (ACP) for patients with advanced cancer can be successfully implemented and the preliminary intervention effect, which provides reference for empirical research.Methods:32 cases of advanced cancer patients and 25 cases of their families at the Fifth Affiliated Hospital of Zunyi Medical University, Zhuhai were selected. The patients were subdivided into the experimental group and the control group by random number table method. The control group received routine nursing, while the experimental group adopted the intervention model of "VIP for future care" on the basis of customary nursing. We measured the main outcome indicators: enrollment rate, consent rate, completion rate and loss of follow-up rate and secondary outcome indicators: decision-making certainty, end-of-life care preference and post-intervention satisfaction of patients and their families, within 1 week and 1 month after intervention.Results:The enrollment rate, consent rate and loss of follow-up rate were 74.6% (206/276), 36.9% (76/151)and 15.6% (5/32), respectively. After intervention, the completion rates of the experimental group and the control group were 16/16 and 15/16 within one week, and 14/16 and 13/16 within one month. All of the family members were conducted during the follow-up period. The intervention mode of "VIP for future care" had a statistically significant difference in decision-making certainty between the two groups of patients ( β=0.63, 95% CI 0.08-1.18, P<0.05), no statistically significant difference in end-of-life care preference between the two groups of patients and their families ( P>0.05), and had a statistically significant difference in "whether to recommend this project to others" between the two groups ( χ2 value was 4.167 , P<0.05). Conclusions:On the premise of sufficient preparation, the "VIP for future care" intervention mode can be successfully implemented in advanced cancer patients in mainland China, can improve the decision-making certainty of patients and the satisfaction of patients and their families, and it is recommended. And should be applied to ACP intervention for patients with advanced cancer.

The expression of histone lysine-specific demethylase 1 (LSD1) in colorectal cancer cells is increased, and LSD1 is closely related to its occurrence, development, proliferation, invasion and metastasis. LSD1 is a demethylase whose function depends on flavin adenine dinucleoside. It can specifically catalyze the demethylation reaction of histone lysine, and regulate the expression of target genes by reaction of demethyl and dimethyl (H3K4me, H3K4me2, H3K9me, and H3K9me2) at the 4th and 9th positions of lysine H3. Targeted inhibition of LSD1 has been proved to be able to exert significant anti-tumor effect, but since the tumors involve multiple centers and factors, later studies have found that single inhibition of LSD1 cannot completely and effectively kill tumor cells. Moreover, the specificity of the LSD1 catalytic substrate depends to a large extent on the synergistic factors that bind to it and form complexes. The double-target inhibitors based on LSD1 shows more remarkable effect in tumor inhibition. Therefore, finding the combined synergistic factors of LSD1 may provide the basis for the research of multi-target inhibitors.

Objective: To evaluate the feasibility and safety of applying enhanced recovery after surgery (ERAS) protocol in patients undergoing laparoscopic distal pancreatectomy. Methods: Data of 36 patients undergoing laparoscopic distal pancreatectomy from May 2016 to May 2017 in the First Affiliated Hospital, Zhejiang University School of Medicine were reviewed. The patients were divided into ERAS group (n=12) and control group (n=24). The patients in ERAS group received a series of enhanced recovery procedures, including multimodal analgesia, early off-bed activity and early oral food-taking, etc. Operation time, intraoperative blood loss, time to first flatus, postoperative complications, and length of postoperative hospital stay were evaluated. Results: There were no statistically significant differences in operation time and intraoperative blood loss between ERAS group and control group (all P0.05). The time to first flatus and length of postoperative hospital stay were significantly shortened in ERAS group (all P<0.05). The ERAS group had lower incidence of postoperative complications (41.7% vs. 66.7%), and the complications in ERAS group tended to be milder, but the differences failed to show statistical significance (all P0.05). Conclusion: The ERAS protocol for laparoscopic distal pancreatectomy can significantly promote gastrointestinal function recovery and shorten postoperative hospital stay, and may reduce the incidence of postoperative complications.
Case-Control Studies ; Humans ; Laparoscopy ; standards ; Length of Stay ; Pancreatectomy ; instrumentation ; methods ; Postoperative Complications ; prevention & control ; Postoperative Period ; Retrospective Studies