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1.
J Hazard Mater ; 391: 122183, 2020 Jan 23.
Artigo em Inglês | MEDLINE | ID: mdl-32036308

RESUMO

Metal-free catalysts have been proved to be a low-cost and environmentally friendly species in aerobic oxidative desulfurization (ODS). In this work, exfoliated metal-free boron carbide with few-layered structure, small size, and abundant defects, was first employed in an aerobic ODS system for ultra-deep desulfurization. The exfoliation process was realized by employing a planetary ball mill strategy. Detailed characterizations showed that the ball milling process not only induces thinner layers and small sizes but also introduces numerous defects into the boron carbide catalysts, which is vital in metal-free catalysis. Furthermore, the exfoliated boron carbide catalyst was applied in aerobic ODS system, and 99.5 % of sulfur removal was obtained. Moreover, the catalyst can be recycled 17 times without a significant decrease in catalytic activity. In particular, it was found that ∼90 % of the sulfur compounds in real diesel oil could be removed by the current aerobic ODS system.

2.
Int J Biol Macromol ; 149: 532-540, 2020 Jan 28.
Artigo em Inglês | MEDLINE | ID: mdl-32004606

RESUMO

This research displayed the structures and thermomechanical feature of starch-based nanocomposites as induced by interaction between propionylated amylose/amylopectin and nanofiller (organically modified montmorillonite). Propionylated amylose incorporated with nanofiller caused some phase separation within the nanocomposites. By contrast, highly-branched propionylated amylopectin favored nanofiller dispersion and disrupted its crystalline structure, and further facilitated certain exfoliated or intercalated structures. Based on these structures, propionylated amylose-rich nanocomposites showed enhanced ß-relaxation in the induced "plasticizer-rich" regions, whereas the propionylated amylopectin nanocomposites displayed higher glass-transition temperature due to restricted macromolecular mobility. These results suggested that the structures and further packaging properties of starch-based nanocomposites could be better understood by controlling the interaction of starch with other ingredients.

3.
J Transl Med ; 18(1): 67, 2020 Feb 11.
Artigo em Inglês | MEDLINE | ID: mdl-32046766

RESUMO

BACKGROUND: Growing evidence has suggested that immune-related genes play crucial roles in the development and progression of hepatocellular carcinoma (HCC). Nevertheless, the utility of immune-related genes for evaluating the prognosis of HCC patients are still lacking. The study aimed to explore gene signatures and prognostic values of immune-related genes in HCC. METHODS: We comprehensively integrated gene expression data acquired from 374 HCC and 50 normal tissues in The Cancer Genome Atlas (TCGA). Differentially expressed genes (DEGs) analysis and univariate Cox regression analysis were performed to identify DEGs that related to overall survival. An immune prognostic model was constructed using the Lasso and multivariate Cox regression analyses. Furthermore, Cox regression analysis was applied to identify independent prognostic factors in HCC. The correlation analysis between immune-related signature and immune cells infiltration were also investigated. Finally, the signature was validated in an external independent dataset. RESULTS: A total of 329 differentially expressed immune-related genes were detected. 64 immune-related genes were identified to be markedly related to overall survival in HCC patients using univariate Cox regression analysis. Then we established a TF-mediated network for exploring the regulatory mechanisms of these genes. Lasso and multivariate Cox regression analyses were applied to construct the immune-based prognostic model, which consisted of nine immune-related genes. Further analysis indicated that this immune-related prognostic model could be an independent prognostic indicator after adjusting to other clinical factors. The relationships between the risk score model and immune cell infiltration suggested that the nine-gene signature could reflect the status of tumor immune microenvironment. The prognostic value of this nine-gene prognostic model was further successfully validated in an independent database. CONCLUSIONS: Together, our study screened potential prognostic immune-related genes and established a novel immune-based prognostic model of HCC, which not only provides new potential prognostic biomarkers and therapeutic targets, but also deepens our understanding of tumor immune microenvironment status and lays a theoretical foundation for immunotherapy.

4.
Neurol Res ; : 1-6, 2020 Feb 05.
Artigo em Inglês | MEDLINE | ID: mdl-32024457

RESUMO

Background: Glioblastoma (GBM) is recognized as a malignant brain tumor with frequent mortality. Extensive evidence indicated that miR-188-3p exerts an important role in various tumors. However, the role of miR-188-3p in GBM has not been elucidated. The purpose of the present investigation was to explore the biological effect of miR-188-3p, as well as to determine its target gene in GBM.Methods: The miR-188-3p and G Protein-Coupled Receptor 26 (GPR26) expressional profiles were obtained from The Cancer Genome Atlas (TCGA) database. The proliferative ability, invasive and migratory capabilities of GBM cells were measured using Cell Counting Kit-8 and transwell assays. Bioinformatics tool and luciferase reporter gene analysis were utilized to assess the correlation between miR-188-3p and GPR26. Reverse transcription-quantitative polymerase chain reaction (RT-PCR) and western blotting were performed to detect the indicated gene expression.Results: MiR-188-3p expression was highly regulated in GBM tissue and cell lines, while GPR26 was significantly decreased in GBM. Depletion of miR-188-3p significantly retarded the cell proliferation, invasion and migration in the U-87 MG cell. Luciferase reporter gene assay showed that GPR26 was a target gene of miR-188-3p in GBM. The expression of GPR26 was negatively regulated by miR-188-3p. The inhibitory effect of miR-188-3p inhibitor on cell behaviors was further strengthened by the overexpression of GPR26 in GBM.Conclusion: These findings provided evidence for the cancer-promoting effect of miR-188-3p in GBM cells and demonstrated that GPR26 was directly targeted by miR-188-3p, which might contribute to the therapeutic therapy of GBM.

5.
Food Funct ; 2020 Feb 11.
Artigo em Inglês | MEDLINE | ID: mdl-32043503

RESUMO

Huntington's disease (HD) is a genetic neurodegenerative disorder caused by a highly polymorphic CAG trinucleotide repeat expansion encoding an extended polyglutamine (polyQ) tract at the N-terminus of huntingtin protein (HTT). The polyQ tract promotes the formation of toxic oligomers and aggregates of HTT, which leads to neuronal dysfunction and death. Therapies to lower mutant HTT (mHTT) and its aggregates appear to be the most promising strategies. Ellagic acid (EA) has been marketed as a dietary supplement with various claimed benefits and neuroprotective effects on several neurodegenerative disorders, while its effect on mHTT pathology is still unknown. Here we reported that EA significantly attenuated motor and cognitive deficits in R6/2 mice. Moreover, EA significantly lowered mHTT levels, reduced neuroinflammation, rescued synapse loss, and decreased oxidative stress in R6/2 mouse brains. These findings indicated that EA has promising therapeutic potential for HD treatment.

6.
Br J Pharmacol ; 2020 Feb 07.
Artigo em Inglês | MEDLINE | ID: mdl-32034757

RESUMO

BACKGROUND AND PURPOSE: Immunotherapeutic intervention is one of the most promising strategies for the prevention and treatment of Alzheimer's disease (AD). Although they showed great success in AD mouse models, the clinical trials of many immune approaches failed due to low efficacy and safety. Thus, an animal model which can show the potential side effects of vaccines or antibodies is urgently needed. In this study, we generated EAE/AD mice by crossing APP/PS1 mice with experimental autoimmune encephalomyelitis (EAE) mice. We then investigated the efficacy and safety of two vaccines, the immunogens of which were Aß1-42 aggregates (Aß42 vaccine) and an oligomer-specific conformational epitope (AOE1 vaccine), respectively. EXPERIMENTAL APPROACH: EAE/AD mice were immunized with the Aß42 vaccine or AOE1 vaccine five times at biweekly intervals. After the final immunization, the cognitive function of the mice was evaluated by the Morris water maze, Y-maze, and object recognition tests. Neuropathological changes in the mouse brains were analyzed by immunohistochemistry and enzyme-linked immunosorbent assay. KEY RESULTS: In contrast to previous findings in conventional AD animal models, Aß42 immunization promoted neuroinflammation, enhanced Aß levels and plaque burden, and failed to rescue cognitive deficits in EAE/AD mice. By contrast, AOE1 immunization dramatically attenuated neuroinflammation, reduced Aß levels, and improved cognitive performance in EAE/AD mice. CONCLUSIONS AND IMPLICATIONS: These results suggest that the EAE/AD mouse model can exhibit the potential side effects of AD immune approaches that conventional AD animal models fail to display. Furthermore, strategies specifically targeting Aß oligomers may be safe and show clinical benefit for AD treatment.

7.
ACS Sens ; 2020 Feb 10.
Artigo em Inglês | MEDLINE | ID: mdl-32037789

RESUMO

Enriching and locating target analytes into specific "hot spot" are vital for ultrasensitive molecular identification and detection using plasmonic-based techniques. Inspired by mass transportation in lamp wicks, we develop an effective enrichment strategy for highly diluted analytes, in which analytes and Au nanoparticles are transported via solution microflow under the capillarity driving force of glass fiber papers to a heated region. After evaporation, a large volume of solution contained analytes and Au nanoparticles are condensed into a very limited area, and thus, analyte molecules are effectively enriched and located into SERS hot spots. Using this enrichment strategy, the sensitivity and detection limits of SERS are remarkably improved. Detection levels of crystal violet and anthracene are down to 10-16 M and 10-10 M, respectively. This enrichment strategy is very robust and easy to implement, and it can potentially be exploited in various plasmonic-based molecular detection and identification techniques.

8.
Neurosci Bull ; 2020 Jan 13.
Artigo em Inglês | MEDLINE | ID: mdl-31933063

RESUMO

Acute pain is a common complication after injury of a peripheral nerve but the underlying mechanism is obscure. We established a model of acute neuropathic pain via pulling a pre-implanted suture loop to transect a peripheral nerve in awake rats. The tibial (both muscular and cutaneous), gastrocnemius-soleus (muscular only), and sural nerves (cutaneous only) were each transected. Transection of the tibial and gastrocnemius-soleus nerves, but not the sural nerve immediately evoked spontaneous pain and mechanical allodynia in the skin territories innervated by the adjacent intact nerves. Evans blue extravasation and cutaneous temperature of the intact skin territory were also significantly increased. In vivo electrophysiological recordings revealed that injury of a muscular nerve induced mechanical hypersensitivity and spontaneous activity in the nociceptive C-neurons in adjacent intact nerves. Our results indicate that injury of a muscular nerve, but not a cutaneous nerve, drives acute neuropathic pain.

9.
Carbohydr Polym ; 231: 115673, 2020 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-31888839

RESUMO

Atomic force microscopy investigation and viscosity measurements were applied on pectin solution. Single fiber lengths of both high-methoxyl and low-methoxyl pectin in 0.005 mg/ml were in the range of 19.22-312.11 nm while width was reduced 9.94 % after base catalyzed de-esterification. With adding calcium ions, the viscosity of 0.5 mg/ml low-methoxyl pectin continued growing from 1.30mPa∙s while high-methoxyl pectin solution viscosity stabled at the initial level of 1.26mPa∙s. Comparation of binding behaviors of calcium ions with pectin and alginate revealed the structural influence on inducing force. The formation of dimers was followed by lateral aggregation of dimers when calcium ions were added to low-methoxyl pectin. The lack of third step occurred in alginate where aggregations broken by excessive calcium ions were attributed to the side chains of pectin. Large numbers of esterified galacturonic acid residues limited aggregation of high-methoxyl pectin in intra-molecular interactions which induced by combination of nonspecific hydrophic interactions and hydrogen bonds.

10.
Artigo em Inglês | MEDLINE | ID: mdl-31894000

RESUMO

BACKGROUND: Sonchus oleraceus is a large and widespread plant in the world. It is edible to humans as a leaf vegetable and also a folklore medicinal herb in the treatment of infections and inflammatory disease, but limited research on the chemical constituents of was presented. OBJECTIVE: To isolate and identified the bioactive ingredients from S. oleraceus. METHODS: 20kg of S. oleraceus was extracted twice with 75% alcohol. The concentrated extract was suspended in H2O and partitioned with petroleum ether, dichloromethane, ethyl acetate and n-butanol, respectively. The ethyl acetate phase was subjected to repeated normal chromatography on a silica gel column chromatography and eluted with a gradient of CH2Cl2-MeOH to give 12 crude fractions. Fraction 6 was subjected to ODS silica gel column chromatography, Sephadex LH-20 and HPLC to yield 1 and 2. Cell viability of 1 and 2 on A549, H292 and Caco2 cell lines were assayed by MTT method. Apoptosis analysis and apoptosis related proteins were detected subsequently. RESULTS: Two new sesquiterpenes were isolated from S. oleraceus and identified by NMR spectra and HR-ESI-MS. 1 selectively suppressed the viability of A549 and H292 cells with IC50 values of 14.2, and 19.5µM respectively, while possessing no cytotoxicity against Caco2 cells (IC50 > 100µM). 2 did not exhibit cytotoxicity against A549, H292 and Caco2 cells (IC50 > 100µM). 1 significantly decreased the density of live cells and could cause cell apoptosis at 10 and 20µM in a dose-dependent manner. After treatment of 1 for 24h, the level of cleaved caspase-3 was increased accompanied with the reduction in procaspase-3 expression, and the down-regulation of Bcl-2 was associated with the enhancement of Bax expression. 1 could led to the up-regulation of cytochrome c and activation of caspase-9. CONCLUSION: 1 and 2 are new sesquiterpenes from S. oleraceus. 1 could induce apoptosis in A549 and H292 cells through Bax/caspase-9 pathway.

11.
Vet Microbiol ; 240: 108529, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31902498

RESUMO

Rabbit hemorrhagic disease (RHD) is an acute, inflammatory, septic, and devastating infectious disease caused by Rabbit hemorrhagic disease virus (RHDV), which poses a serious threat to the rabbit industry. RHDV2 (GI.2/RHDVb), a recently reported new variant could cause RHD in wild populations, but also RHDV-vaccinated rabbits. For now, both RHDV and RHDV2 are the main causes of RHD. To develop a new subunit vaccine that could protect rabbits against both classic RHDV and RHDV2 infections, we constructed a recombinant baculovirus (Bac-classic RHDV VP60-RHDV2 VP60) containing the VP60 genes of classic RHDV and RHDV2. Both VP60 genes were well expressed simultaneously in Spodoptera frugiperda cells (Sf9) after infection with the recombinant baculovirus. Transmission electron microscopy showed that the recombinant VP60 self-assembled into virus-like particles (VLPs). The antigenicity and immunogenicity of the bivalent VLPs vaccine were examined with animal experiments. Our results demonstrated that both the humoral and cellular immune responses were efficiently induced in rabbits by a subunit vaccine based on the recombinant baculovirus. In addition, all rabbits immunized with the bivalent VLPs vaccine survived after challenged with classic RHDV, and showed no clinical signs of RHD, whereas all the rabbits in the negative control group died from classic RHDV infection and showed typical clinical signs of RHD. In summary, our results indicated that the recombinant baculovirus carrying two VP60 genes is a candidate construct from which to develop a bivalent VLPs vaccine against both classic RHDV and RHDV2 infections.

12.
Environ Toxicol Pharmacol ; 75: 103329, 2020 Jan 08.
Artigo em Inglês | MEDLINE | ID: mdl-31978868

RESUMO

This study aims to explore the analgesic and anti-inflammatory effects of borneol, a traditional Chinese medicine, on photodynamic treatment of acne. Here, we found that borneol significantly decreased the auricular swelling rate and pain threshold of rats. We also showed that borneol noticeably reduced macrophage and lymphocyte infiltration. The number of Th cells was significantly higher in the control PDT group than in the PDT plus borneol treatment group (P < 0.05). The expression of IL-6, TNF-α, and IL-8 mRNA and proteins were noticeably lower in the treatment group in comparison to those of the PDT control group, while PDT plus borneol activated the p38-COX-2-PGE2 signaling pathway, increasing expression in the treatment group. Borneol has significant analgesic and anti-inflammatory effects on PDT of acne, and enhances the healing of acne by activating p38-COX-2-PGE2 signaling pathway.

13.
FASEB J ; 2020 Jan 17.
Artigo em Inglês | MEDLINE | ID: mdl-31953889

RESUMO

Hepatic stellate cells (HSCs) are the main effectors for various types of hepatic fibrosis, including Schistosome-induced hepatic fibrosis. Multiple inflammatory cytokines/chemokines, such as transforming growth factor-ß1 (TGF-ß1), activate HSCs, and contribute to the development of hepatic fibrosis. MicroRNAs regulate gene expression at the posttranscriptional level and are involved in regulation of inflammatory cytokine/chemokine synthesis. In this study, we showed that soluble egg antigen (SEA) stimulation and Schistosoma japonicum infection downregulate miR-27b expression and increase KH-type splicing regulatory protein (KSRP) mRNA and protein levels in vitro and in vivo. miR-27b regulates the stabilization of TGF-ß1 mRNA through targeting KSRP by interacting with their AU-rich elements in hepatocytes and non-parenchymal cells, which has an effect on the activation of HSCs. Importantly, our results have shown that either knockdown miR-27b or overexpression of KSRP attenuates S. japonicum-induced hepatic fibrosis in vivo. Therefore, our study highlights the crucial role of miR-27b and KSRP in the negative regulation of immune reactions in hepatocyte and non-parenchymal cells in response to SEA stimulation and S. japonicum infection. It reveals that manipulation of miR-27b or KSRP might be a useful strategy not only for treating Schistosome-induced hepatic fibrosis but also for curing hepatic fibrosis in general.

14.
Cell Death Dis ; 11(1): 4, 2020 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-31919348

RESUMO

Delayed neuronal death is associated with neurological deficits and mortality after traumatic brain injury (TBI), where post-synaptic density (PSD) proteins are thought to play key roles. The immediate-early gene (IEG) coded protein Arc is a brain-specific PSD protein that controls synaptic plasticity and learning behaviors. In this study, we investigated the expression and biological function of Arc in neuronal death after TBI in an in vitro model mimicked by traumatic neuronal injury (TNI) in cortical neurons. TNI caused a temporal increase of Arc expression at 3 and 6 h. Knockdown of Arc expression using small interfering RNA (Si-Arc-3) promoted TNI-induced cytotoxicity and apoptosis. The results of western blot showed that Si-Arc-3 transfection further enhanced the activation of endoplasmic reticulum (ER) stress-associated factors, including glucose-regulated protein 78 (GRP78), C/EBP homologous protein (CHOP) and caspase-12 after TNI. In addition, knockdown of Arc significantly increased expression of (receptor-interacting protein kinase 1) RIP1 and the number of necroptotic cells, which were apparently prevented by necrostatin-1 (Nec-1). The results of immunostaining and western blot showed that knockdown of Arc activated the metabotropic glutamate receptor 1 (mGluR1) and intracellular Ca2+ release in neurons. Mechanistically, the Si-Arc-3-induced activation of ER stress-associated factors, RIP1 expression, apoptosis, and necroptosis were partially reversed by the mGluR1 antagonist AIDA. In summary, our data suggest that silence of Arc expression aggravates neuronal death after TNI by promoting apoptosis and necroptosis. These data support for the first time that Arc may represent a novel candidate for therapies against TBI.

15.
J Minim Access Surg ; 2020 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-31929221

RESUMO

Background: Enteric duplication is a congenital anomaly with varied clinical presentation that requires surgical resection for definitive treatment. Ileocaecal (IC) duplications are duplications located at the IC junction, not clearly identified in all the published series. The reported treatment is IC resection and ileocolic anastomosis. The purpose of our study was to present our experience in successfully resection of IC duplication by laparoscope, thus avoiding bowel resection in children. Materials and Methods: A retrospective review was conducted of medical records of 15 patients with diagnosis of IC duplication, treated in the Department of Paediatric Surgery of our hospital, within the period from November 2013 to September 2018. Results: Laparoscopic resection of IC duplication was successfully performed in all children without bowel resection. The operation time was 50-90 min (55 ± 10 min), and the post-operative hospitalization time was 5-7 days (average, 6 days). The 15 patients were followed up for 6-12 months (average, 10 months). No recurrence was found by abdominal ultrasound examination. The wound had small scars with good appearance of umbilicus. Conclusions: The laparoscopic approach allows for confirming the diagnosis and accurately defining the exact site of duplication, as well as for effective and safe treatment. Laparoscopic excision of IC duplication without bowel resection is a safe option and is worth promoting.

16.
Cells ; 9(1)2020 Jan 18.
Artigo em Inglês | MEDLINE | ID: mdl-31963688

RESUMO

Heat stress (HS) often causes sudden death of humans and animals due to heart failure, mainly resulting from the contraction of cardiac microvasculature followed by myocardial ischemia. Cardiac microvascular endothelial cells (CMVECs) play an important role in maintaining vasodilatation. Aspirin (ASA) is well known for its protective abilities of febrile animals. However, there is little knowledge about molecular resistance mechanisms of CMVECs and which role ASA may play in this context. Therefore, we used a heat stress model of rat cardiac microvascular endothelial cell cultures in vitro and investigated the cell injuries and molecular resistance mechanism of CMVECs caused by heat stress, and the effect of aspirin (ASA) on it. HS induced severe pathological damage of CMVECs and cellular oxidative stress and dysfunction of NO release. Hsp90 was proven to be indispensable for resisting HS-injury of CMVECs through PI3K-Akt and PKM2 signaling pathways. Meanwhile, PKM2 functioned in reducing Akt phosphorylation. ASA treatment of CMVECs induced a significant expression of Hsp90, which promoted both Akt and PKM2 signals, which are beneficial for relieving HS damage and maintaining the function of CMVECs. Akt activation also promoted HSF-1 that regulates the expression of Hsp70, which is known to assist Hsp90's molecular chaperone function and when released to the extracellular liquid to protect myocardial cells from HS damage. To the best of our knowledge, this is the first study to show that HS damages CMVECs and the protection mechanism of Hsp90 on it, and that ASA provides a new potential strategy for regulating cardiac microcirculation preventing HS-induced heart failure.

17.
Br J Nutr ; : 1-21, 2020 Jan 22.
Artigo em Inglês | MEDLINE | ID: mdl-31964441

RESUMO

Human milkfat is specially tailored to supply the developing infant with adequate and balanced nutrients. This study aimed to quantify the composition of fatty acids, tocopherols and carotenoids in human milk, with special emphasis on the lactational changes. Colostrum, transitional, and mature milk samples were collected longitudinally from the same 42 healthy, well-nourished Chinese mothers. Fatty acids were quantified by gas chromatography with carotenoids (carotenes and xanthophylls) and tocopherols (α-, γ-tocopherol) determined by high-performance liquid chromatography. Total fatty acids content increased from 15.09 g/L in colostrum to 32.57 g/L in mature milk with the percentages of DHA and ARA decreased. The ratio of n-6/n-3 PUFA and ARA/DHA remained constant during lactation at around 11:1 and 1.3:1, respectively. Both α-tocopherol and γ-tocopherol decreased over lactation with the ratio of α-/γ-tocopherol declined significantly from 7.21:1 to 4.21:1 (P < 0.001). Carotenoids all dropped from colostrum to mature milk as the less polar carotenes dropped by 88.67% while xanthophylls only dropped by 35.92%. Lutein predominated in both transitional and mature milk carotenoids (51.64~52.49%), while colostrum carotenoids were mainly composed of lycopene (32.83%) and ß-carotene (30.78%). The concentrations of tocopherols and xanthophylls but not carotenes were positively associated with milk total fatty acids content. These results suggested that colostrum and mature milk contained divergent lipid profiles and selective transfer mechanisms related with polarity might be involved. The present outcomes provide new insights for future breastfeeding studies, which also add in scientific evidences for the design of both initial and follow-on infant formulas.

18.
BMC Surg ; 20(1): 3, 2020 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-31900149

RESUMO

BACKGROUND: Although enhanced recovery after surgery (ERAS) has made great progress in the field of surgery, the guidelines point to the lack of high-quality evidence in upper gastrointestinal surgery. METHODS: Randomized controlled trials in four electronic databases that involved ERAS protocols for upper gastrointestinal surgery were searched through December 12, 2018. The primary endpoints were lung infection, urinary tract infection, surgical site infection, postoperative anastomotic leakage and ileus. The secondary endpoints were postoperative length of stay, the time from end of surgery to first flatus and defecation, and readmission rates. Subgroup analysis was performed based on the type of surgery. RESULTS: A total of 17 studies were included. The results of the meta-analysis indicate that there was a decrease in rates of lung infection (RR = 0.50, 95%CI: 0.33 to 0.75), postoperative length of stay (MD = -2.53, 95%CI: - 3.42 to - 1.65), time until first postoperative flatus (MD = -0.64, 95%CI: - 0.84 to - 0.45) and time until first postoperative defecation (MD = -1.10, 95%CI: - 1.74 to - 0.47) in patients who received ERAS, compared to conventional care. However, other outcomes were not significant difference. There was no significant difference between ERAS and conventional care in rates of urinary tract infection (P = 0.10), surgical site infection (P = 0.42), postoperative anastomotic leakage (P = 0.45), readmissions (P = 0.31) and ileus (P = 0.25). CONCLUSIONS: ERAS protocols can reduce the risk of postoperative lung infection and accelerating patient recovery time. Nevertheless, we should also consider further research ERAS should be performed undergoing gastrectomy and esophagectomy.

19.
FEBS Open Bio ; 2020 Jan 27.
Artigo em Inglês | MEDLINE | ID: mdl-31984680

RESUMO

Colorectal cancer (CRC) is the third main cause of cancer-relevant deaths worldwide, and its incidence has increased in recent decades. Previous studies have indicated that certain long non-coding RNAs (lncRNAs) have regulatory roles in tumor occurrence and progression. Often, lncRNAs are competitive endogenous RNAs (ceRNAs) which sponge miRNAs to up-regulate mRNAs. Here, we examined the role of a novel lncRNA BBOX1 antisense RNA 1 (BBOX1-AS1) in colorectal cancer (CRC). We observed that BBOX1-AS1 is overexpressed in CRC cell lines, and BBOX1-AS1 knockdown enhances cell proliferation, migration and invasion while reducing cell apoptosis. MiR-361-3p is present at a low level in CRC and is negatively modified by BBOX1-AS1. Moreover, miR-361-3p was validated to be targeted by BBOX1-AS1. SH2B1 was notably up-regulated in CRC cell lines, and identified as a downstream gene of miR-361-3p. In addition, we found that miR-361-3p amplification can suppress the expression of SH2B1. Finally, data from rescue assays suggested that overexpression of SH2B1 counteracted BBOX1-AS1 silencing-mediated inhibition of CRC progression. In conclusion, BBOX1-AS1 promotes CRC progression by sponging hsa-miR-361-3p and up-regulating SH2B1.

20.
Life Sci Space Res (Amst) ; 24: 1-8, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31987473

RESUMO

In space, multiple unique environmental factors, particularly microgravity and space radiation, pose a constant threat to astronaut health. MicroRNAs (miRNAs) and long noncoding RNAs (lncRNAs) are functional RNAs that play critical roles in regulating multiple cellular processes. To gain insight into the role of non-coding RNAs in response to radiation and microgravity, we analyzed RNA expression profiles in human lymphoblastoid TK6 cells incubated for 24 h under static or rotating conditions to stimulate microgravity in space, after 2-Gy γ-ray irradiation. The expression of 14 lncRNAs and 17 mRNAs (differentially-expressed genes, DEGs) was found to be significantly downregulated under simulated microgravity conditions. In contrast, irradiation upregulated 55 lncRNAs and 56 DEGs, whereas only one lncRNA, but no DEGs, was downregulated. Furthermore, two miRNAs, 70 lncRNAs, and 87 DEGs showed significantly altered expression in response to simulated microgravity after irradiation, and these changes were independently induced by irradiation and simulated microgravity. GO enrichment and KEGG pathway analyses indicated that the associated target genes showed similar patterns to the noncoding RNAs and were suggested to be involved in the immune/inflammatory response including LPS/TLR, TNF, and NF-κB signaling pathways. However, synergistic effects on RNA expression and cellular responses were also observed with a combination of simulated microgravity and irradiation based on microarray and RT-PCR analysis. Together, our results indicate that simulated microgravity and irradiation additively alter expression patterns but synergistically modulate the expression levels of RNAs and their target genes in human lymphoblastoid cells.

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