ObjectiveTo observe the effects of parenteral nutrition (PN) containing ω-3 polyunsaturated fatty acids (ω-3PUFAs) on postoperative systemic inflammatory response syndrome (SIRS) in patients with obstructive jaundice. MethodsTotally 40 patients with obstructive jaundice who underwent hepatobiliary surgery in the Affiliated Hospital of Binzhou Medical College from June 2008 to October 2009 were enrolled in this study and randomly divided into the conventional PN group and PUFAs group with 20 cases in each group. The conventional PN group was provided with medium-chain/long-chain triglycerides lipid emulsion, while the PUFAs group was provided with medium-chain/long-chain triglycerides lipid emulsion supplemented with ω-3PUFAs. The two groups received PN support with equal nitrogen content and calories for 9 days. The non-protein caloric value given was 117.15 kJ/(kg · d) with 0.2 g/(kg · d) of nitrogen. Interleukin-6 (IL-6), C-reactive protein (CRP), and tumor necrosis factor-α (TNF-c) in serum were measured on the day before operation and on the postoperative day 1,3, 5, 7, and 9. Meanwhile, the incidences of SIRS and multiple organ dysfunction syndrome (MODS) were analyzed. ResultsThe levels of IL-6, CRP, and TNF-α on the postoperative day 3, 5, 7, and 9 were significantly lower in the PUFAs group than those in the conventional PN group ( all P ＜ 0.05). The duration of SIRS in the PUFAs group [(3.85 ±2.36) days] was significantly shorter than that in the conventional PN group [(5.31 ±1.47 ) days, P =0.0230]. The incidence of MODS was significantly lower in the PUFAs group ( 10％ ) than that in the conventional PN group (25％, P =0.0076). Conclusionsω-3PUFAs-supplemented PN improves the functions of liver and pancreas and alleviates acute inflammatory response in patients with obstructive jaundice.

Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is a common complication after liver transplantation, which could prolong the length of postoperative intensive care unit stay, affect clinical efficacy of liver transplantation and even lead to the death of recipients. ALI/ARDS has attracted extensive attention from liver transplant surgeons in clinical practice. ALI/ARDS after liver transplantation may be directly caused by pulmonary factors (such as mechanical ventilation-related lung injury, lung infection and aspiration, etc.) or indirectly induced by non-pulmonary factors (such as severe infection outside the lungs, blood transfusion and ischemia-reperfusion injury, etc.). In this article, the diagnostic criteria, incidence, mechanism, risk factors, laboratory and clinical diagnostic approaches and treatment of ALI/ARDS after liver transplantation were reviewed, aiming to deepen the understanding and cognition of ALI/ARDS during the perioperative period of liver transplantation and provide reference for the diagnosis and treatment of ALI/ARDS following liver transplantation.

Objective To investigate the effectiveness and safety of carbapenem antimicrobial management programs (ASP). Methods 671 patients who were discharged from the emergency department of the hospital from January 2017 to April 2018 were enrolled. These patients were subject to before-and-after self-control studies, using such intervention measures as MDT proactive management-feedback-training. January-September of 2017 was set as the pre-intervention stage, and September 2017-April 2018 as the post-intervention stage. The two stages were compared in such indicators as the monthly antibacterial use, quality of care and hospital acquired infection. Results Thanks to the ASP measure against antibiotics like carbapenems, the use rate of carbapenems at the emergency department ward fell from 36.7% to 18.6% , the defined drug doses (DDDs) of carbapenems fell from 211.92 to 82.22, and the antibiotics use density (AUD) of carbapenems fell from 29. 18 DDDs/100 day/patient to 11. 56. The pathogen detected rate increased significantly (0.61 ± 0.08 versus 0.78 ± 0.16), with a difference of statistical significance (P=0.020). On the other hand, the mean days of stay, average cost per hospitalization, proportion of antibiotics use, incidence of hospital acquired infections, and the infection/colonization rate of carbapenem-resistant organisms ( CROs ) present no significant changes. There was a moderate positive correlation between carbapenem DDDs and mean days of stay ( P=0.034), and also a moderate positive correlation between hospital acquired infection incidence and CROs infection/colonization rate ( r = 0.545, P = 0.029 ). Conclusions The carbapenem ASP at the hospital proves safe and effective. CROs infection/colonization may be the cause of hospital acquired infection. Prevention and control against multi-drug resistant bacteria on the basis of ASP may add to the effect of ASP.

OBJECTIVETo investigate the influence of CCL21 on the invasion and metastasis of colorectal cancer (CRC).

METHODSCCL21 over-expressing CRC cell line was constructed by lentivirus infection and CCL21 low-expressing CRC cell line was constructed by lipofection. The effects of CCL21 on the invasion and metastasis of CRC cells and the stem cell-like phenotype were investigated by Transwell migration, invasion assay, wound healing assay and sphere formation assay.

RESULTSReal-time quantitative PCR and western blot confirmed that the expression of CCL21 was up-regulated by lentiviral transfection and down-regulated by siRNA liposome transfection. In vitro, Transwell assays showed that the invasion and migration in CCL21 over-expressing CRC cells decreased significantly as compared to those of CCL21 low-expressing cells. In wound healing assay, the CCL21 over-expressing CRC cells showed a significantly lower rate of migration. In addition, the sphere formation rate and density of CCL21 over-expressing CRC cells were lower than those with low-expression of CCL21.

CONCLUSIONCCL21 can suppress the migration and invasion of CRC cells and weaken their stem cell-like phenotype.

Sparse labeling of neurons contributes to uncovering their morphology, and rapid expression of a fluorescent protein reduces the experiment range. To achieve the goal of rapid and sparse labeling of neurons in vivo, we established a rapid method for depicting the fine structure of neurons at 24 h post-infection based on a mutant virus-like particle of Semliki Forest virus. Approximately 0.014 fluorescent focus-forming units of the mutant virus-like particle transferred enhanced green fluorescent protein into neurons in vivo, and its affinity for neurons in vivo was stronger than for neurons in vitro and BHK21 (baby hamster kidney) cells. Collectively, the mutant virus-like particle provides a robust and convenient way to reveal the fine structure of neurons and is expected to be a helper virus for combining with other tools to determine their connectivity. Our work adds a new tool to the approaches for rapid and sparse labeling of neurons in vivo.
Animals ; Cells, Cultured ; Gene Expression ; Genetic Vectors ; genetics ; metabolism ; Green Fluorescent Proteins ; genetics ; metabolism ; Immunohistochemistry ; methods ; Male ; Mice, Inbred C57BL ; Microscopy, Fluorescence ; methods ; Neurons ; cytology ; metabolism ; Purkinje Cells ; cytology ; metabolism ; Semliki forest virus ; genetics

Alcoholic liver disease (ALD) is a growing global health concern, and its early pathogenesis includes steatosis and steatohepatitis. Inhibiting lipid accumulation and inflammation is a crucial step in relieving ALD. Evidence shows that puerarin (Pue), an isoflavone isolated from Pueraria lobata, exerts cardio-protective, neuroprotective, anti-inflammatory, antioxidant activities. However, the therapeutic potential of Pue on ALD remains unknown. In the study, both the NIAAA model and ethanol (EtOH)-induced AML-12 cell were used to explore the protective effect of Pue on alcoholic liver injury in vivo and in vitro and related mechanism. The results showed that Pue (100 mg·kg^-1) attenuated EtOH-induced liver injury and inhibited the levels of SREBP-1c, TNF-α, IL-6 and IL-1β, compared with silymarin (Sil, 100 mg·kg^-1). In vitro results were consistent within vivo results. Mechanistically, Pue might suppress liver lipid accumulation and inflammation by regulating MMP8. In conclusion, Pue might be a promising clinical candidate for ALD treatment.