Objective To investigate the effects of intervention with the fluoxetine and the enriched environment on chronic stress induced depression behavior of rats,and the changes of myelin basic protein in hippocampus and prefrontal regions.Methods 50 adult male SD rats were randomly divided into control group,fluoxetine group,model group,enriched environment (EE) group and EE plus fluoxetine group.Fluoxetine group,model group,EE group and EE plus fluoxetine group underwent chronic unpredictable stress stimulus in the first to third week,and fluoxetine group,EE group,EE plus fluoxetine group underwent the intervention with EE and (or) fluoxetine in the fourth to sixth week.The changes of behavior in rats were evaluated by sucrose water consumption,open field test and weight changes.The content of MBP in each subregion of hippocampus and prefrontal regions of rats was measured with immunocytochemical methods.Results At the third weekend,the assessed behaviors of stressed rats decreased significantly compared with control group (P＜0.05);and at the sixth weekend,the behaviors of stressed rats restored after treated with EE and (or) fluoxetine.The content of MBP in the rat hippocampus CA1,DG area and prefrontal area of model group declined clearly compared with control group (mean density of model group orderly:0.199±0.024,0.204±0.021,0.225±0.028;control group orderly:0.279±0.034,0.288±0.043,0.308±0.053,P＜0.05).The content of MBP in the rat of fluoxetine group,EE group and EE plus fluoxetine group increased obviously compared with model group (fluoxetine group orderly:0.259± 0.047,0.266± 0.052,0.284 ± 0.031;EE group orderly:0.257±0.038,0.258±0.042,0.286±0.037;EE plus fluoxetine group orderly:0.271± 0.046,0.279±0.040,0.289±0.041,P＜0.05).Conclusion The depression-like behavior of rats induced by chronic unpredictable stress is associated with the change of the content of MBP in hippocampal CA1,DG area and prefrontal area;and the depression-like behavior and the content of MBP decrease are reversed after the intervention with fluoxetine and EE.

Objective To evaluate the efficacy and safety of tubeless of modular flexible ureteroscope combined with ultramini nephrostomy tract for the treatment of upper ureteral calculi in paediatric patients. Methods 20 cases of children with upper ureteral calculi (age≤7 years old), in our hospital underline of modular flexible ureteroscope combined with ultramini nephrostomy tract lithotripsy, the stones located on the left side in 12 cases, 8 cases on the right. The average age of children in the 4 years (2 to 7 years), the average diameter of stones 1.0 cm (0.7 ~1.5 cm), multiple 9 (including 3 cases of multiple bilateral, 6 cases of unilateral multiple) single stones 11 cases. Ultrasound-guided percutaneous nephrolithotomy establish supermicro channel (F11), application modular and flexible uretero﹣scope holmium laser lithotripsy systems. Results Tubeless of modular flexible ureteroscope combined with ultramini nephrostomy tract calculi Clear Phase 91%(21/23), 2 cases of bilateral stones with phased surgical treatment, surgi﹣cal staging stone clearance rate was 100 % (23/23). Postoperative hemoglobin decline was no significant change. Children do not need a blood transfusion, creatinine, blood urea nitrogen and CRP were no significant differences in change, not placed before and after surgery and renal fistula DJ tube (no tube-based). The mean postoperative hospi﹣tal stay was two days, followed up for 6 months to 1 year, all patients had no long-term complications. Conclusion Tubeless of modular flexible ureteroscope combined with ultramini nephrostomy tract for the treatment of Upper ureteral calculi in paediatric patients is an effective and safety method, can shorten hospital stay.

Objective Comparing and analyzing the advantages and disadvantages of rigid and flexible ureteroscopy in treatment of renal multiple stones or staghorn calculi. Methods 80 patients of renal multiple stones and staghorn calculi from May 2012 to March 2015 were randomly divided into two groups, group A: flexible ureteroscopy as adjuvant technique of balloon dilatation to establish standards channel of rigid nephrolithotripsy, group B: rigid ureteroscopy as auxiliary to flexible ureteroscopy nephrolithotomy. Clinical data of the two groups including operative time, blood loss, stones clearance rate, hospital stay and other indicators of surgical complications were comparatively analyzed. Results TAll the patients received successful surgical procedures. The operation time in group A was 50.4 min, gravel time was 25.6 min, while operation time in group B was 90.3 min, gravel time was 70.3 min. The differences between the two groups was statistically significant. Other indicators such as blood loss, stones clearance rate, complication rate showed no statistical significance. Conclusion Combined techniques of rigid and flexible ureteroscopy was proceeded widely to improve stone clearance rate when dealing with multiple stones and staghorn calculi, while rigid-ureterscopy-based combination has advantages of shorter operation time and this combination should be promoted in top units.

Objective To observe the clinical effect of oblique supine lithotomy position rigid single-access percutaneous nephrolithotomy combined with FURS in treatment of complex urinary tract stones. Methods From May 2013 to January 2016, 40 cases of multiple kidney stones and staghorn calculi patients underwent oblique supine lithotomy position balloon establish standard single renal access, using percutaneous percutaneous combind with FURS, clinical data of patients, including operative time, blood loss, stone stone clearance rate, hospitalstay, incidence of complications and other indicators. Results The patients were successfully implemented Phase I single-access surgery, the median time 52.5 min, stone stone clearance rate of 100%, before and after surgery no difference in the amount of bleeding, no blood transfusion patients, followed up for 3 months to six months, no significant concurrent operation disease. Conclusion Oblique supine lithotomy bit single-access percutaneous percutaneous combined with FURS treatment of complex renal calculi can improve stone clearance rate, increased patient comfort during surgery to avoid damage to the kidneys multi-channel, shorter operative time, treatment obvious.

Objective To investigate the effect of enriched environment (EE) on behavior and expression of mitogenactivated protein kinase phosphatase-1 (MKP-1) in hippocampus of depression rats induced by chronic unpredicted mild stress (CUS) and to provide clues for the molecular mechanism of treating depression.Methods Forty Sprague-Dawley rats were randomly divided into control group,CUS group,fluoxetine group and EE group,with 10 rats in each group.The rats in CUS group,fluoxetine group and EE group were given 8 weeks of CUS,and from the fifth week,the rats in EE group and fluoxetine group were given EE and fluoxetine for 4 weeks,respectively.The changes of behavioristic of the rats in the four groups were evaluated by body mass gain,open field test,and sucrose preference.The expression of MKP-1 in hippocampus was detected by Western blot.Results There was no significant difference in body mass,distance of horizontal movement,the number of upright,the times of passing through the grid and sucrose preference index among the four groups(P ＞ 0.05).After modeling,compared with the control group,the body mass gain,distance of horizontal movement,the number of up-right,the times of passing through the grid and sucrose preference index in the CUS group,fluoxetine group and EE group were decreased significantly(P ＜ 0.05);there was no significant difference in the body mass gain,distance of horizontal movement,the number of up-right,the times of passing through the grid and sucrose preference index among the CUS group,fluoxetine group and EE group(P ＞ 0.05).After intervening by fluoxetine and EE,the body mass gain,distance of horizontal movement,the number of up-right,the times of passing through the grid and sucrose preference index in the CUS group were lower than those in the control group(P ＜0.05);but there was no significant difference in the body mass gain,distance of horizontal movement,the number of up-right,the times of passing through the grid and sucrose preference index between the control group and the fluoxetine group and EE group(P ＞ 0.05).Compared with the CUS group,the body mass gain,distance of horizontal movement,the number of up-right,the times of passing through the grid and sucrose preference index in the fluoxetine group and EE group were higher(P ＜ 0.05);there was no significant difference in the body mass gain,distance of horizontal movement,the number of up-right,the times of passing through the grid and sucrose preference index between the fluoxetine group and EE group (P ＞ 0.05).The expression of MKP-1 in hippocampus of CUS group and EE group was higher than that in the control group (P ＜0.05).There was no significant difference in the expression of MKP-1 in hippocampus between the fluoxetine group and control group(P ＞ 0.05).Compared with the CUS group,the expression of MKP-1 in hippocampus in the fluoxetine group decreased (P ＜ 0.05).There was no significant difference in the expression of MKP-1 in hippocampus between the EE group and CUS group(P ＞0.05).Compared with the fluoxetine group,the expression of MKP-1 in hippocampus in the EE group was higher(P ＜ 0.05).Conclusion EE can significantly improve depressive symptoms in rats,but it has no significant effect on MKP-1 protein expression in hippocampus,and EE may not act on depression by affecting MKP-1.

BACKGROUND:In recent years,there have been many studies on the mechanism of exosomal non-coding RNA in gestational diabetes mellitus,but there is a lack of the latest systematic review of exosomes from different sources,especially placental sources. OBJECTIVE:To summarize the changes and potential roles of microRNA(miRNA),long non-coding RNA(lncRNA),circular RNA(circRNA),and exosomes in gestational diabetes mellitus to provide potential targets for early screening and treatment of clinical gestational diabetes mellitus. METHODS:A literature search was conducted on PubMed,Web of Science,China National Knowledge Infrastructure,WanFang Data,and VIP databases to retrieve relevant articles on non-coding RNA or exosomal non-coding RNA in relation to gestational diabetes mellitus.A total of 74 articles were included for review. RESULTS AND CONCLUSION:(1)Non-coding RNAs play important pathological and physiological roles in the lifecycle activities,and increasing evidences suggest that non-coding RNAs are involved in the occurrence and development of gestational diabetes mellitus by regulating various physiological functions.This provides a new direction for the research of gestational diabetes mellitus.(2)Exosomes are widely present in the human body.Various cells can secrete exosomes,such as red blood cells,epithelial cells,and placental cells.Non-coding RNAs found in exosomes from different sources have been demonstrated to play a role in the pathogenesis,diagnosis,and treatment of gestational diabetes mellitus.(3)MiRNA and gestational diabetes mellitus:The role of peripheral blood miRNA in gestational diabetes mellitus is mainly to affect the functions of trophoblast cells,pancreatic beta cells and blood glucose levels in gestational diabetes mellitus;placental miRNA can reflect the severity of gestational diabetes and impair the function of trophoblast cells.(4)LncRNA and gestational diabetes mellitus:Peripheral blood lncRNA can induce insulin resistance through the phosphatidylinositol 3-kinase/protein kinase B pathway and may provide new insights for the diagnosis and treatment of gestational diabetes mellitus;placental lncRNA can regulate proliferation and migration of placental trophoblast cells,promoting the occurrence and development of gestational diabetes mellitus.(5)CircRNA and gestational diabetes mellitus:Peripheral blood and placental circRNA can induce the occurrence and development of gestational diabetes mellitus by impairing the proliferation,migration and metabolism of placental trophoblast cells.(6)Non-coding RNA in exosomes and gestational diabetes mellitus:Peripheral blood non-coding RNA in exosomes can affect gestational diabetes mellitus blood glucose levels and glucose homeostasis,and participate in the occurrence and development of gestational diabetes mellitus by influencing placental function.(7)Non-coding RNA has the potential to serve as biomarkers for early diagnosis of gestational diabetes mellitus.Additionally,engineered exosomes can better achieve targeted therapy for gestational diabetes mellitus.These latest findings provide a reference for both basic research and clinical translation of gestational diabetes mellitus.(8)In the future,improvements in the extraction and purification methods of peripheral blood exosomes should be improved,and factors such as race,diet and physical activity should be excluded to improve the reproducibility of results.Further prospective clinical studies are required to explore the clinical application of circulating non-coding RNA and exosomes in the prediction and diagnosis of gestational diabetes mellitus.

Objective:To explore the effect of cognitive behavior orientation group psychotherapy on coping style, time management and family function of middle school students with internet addiction, and provide theoretical basis for the internet addiction psychotherapy system.Methods:Based on IAT, 70 internet addiction middle school students were screened and divided into control group and experimental group according to random number table method.The control group was only given conventionally psychological and drug treatments, the experimental group participated in cognitive behavioral orientation group psychotherapy on the basis of the treatment of the control group.Thirty-two people in the control group and thirty-three people in the experimental group completed the treatment.Before and after treatment, the two groups of middle school students were evaluated by the internet IAT, the SCSQ, the ATMD and the FAD.Results:There was no significant difference in the scales between the two groups of internet addiction middle school students before treatment (all P>0.05). After the intervention of the experimental group, the differences in the positive response (1.89±0.51), negative response (1.55±0.51), time monitoring (58.39±12.10), time value (26.64±4.48), time efficacy (30.42±5.18), and roles(18.85±2.40), communication(24.18±3.77), behavior control (18.82±2.57) and general functioning(24.79±3.90) of FAD were statistically significant compared with the control group (1.62±0.44), (1.84±0.55), (52.09±11.72), (19.34±3.96), (21.91±6.13), (21.16±2.63), (26.09±3.75), (20.59±2.54), (28.69±3.68) and the pre-intervention period (1.46±0.48), (1.97±0.56), (48.73±13.46), (18.27±4.84), (20.00±5.79), (21.76±2.72), (26.58±3.86), (19.76±2.96), (29.27±4.76) (all P<0.05). There were significant differences in problem-solving (12.67±2.50) and affective responsiveness (14.03±3.73) scores of the FAD between the experimental group and the pre-intervention group (14.15±2.83), (14.61±3.66) (all P<0.05). There were significant differences in SCSQ and ATMD before and after treatment in the control group (all P<0.05). Conclusion:Cognitive behavior orientation group psychotherapy can optimize the coping style, ameliorate their time management ability and significantly improve the role, communication, behavior control and overall function of family function of middle school students with internet addiction.

Objective:To explore the phenotype and mechanism of ferroptosis in steatosis liver ischemia reperfusion injury (IRI) and elucidate the mechanism of targeted inhibition of ferroptosis down-regulating steatosis liver IRI.Methods:First, 20 mice are divided into 2 group according to the different feeding mode: Normal chow diet(NCD group, n=10)and high fat diet(HFD group, n=10). The fatty liver constructs are successful as verified by laboratory tests for relevant indicators and oil red staining.NCD and HFD mice were randomized into two groups sham and IRI.The expression of glutathione peroxidase 4(Gpx4)in liver tissues of each group is detected by Western blot.Morphological phenotypes of mitochondria in liver tissue are observed by transmission electron microscope.Accordingly, it was determined whether ferroptosis occurred in mouse liver IRIs.NCD(n=30)and HFD(n=30)are further randomized into 3 groups: sham(n=10), IRI(n=10)and inhibitor(IRI-fer-1 group, n=10). The serum contents of alanine aminotransferase(ALT)and aspartate aminotransferase(AST)are detected by ALT/AST kits.Hematoxylin-eosin(HE)stain is employed for detecting the degree of liver injury; immunohistochemistry(IHC)and enzyme-linked immunosorbent assay(ELISA)for detecting the levels of inflammatory factors and inflammatory cell infiltration.Similarly, primary hepatocytes from NCD/HFD mice are extracted and the occurrence of ferroptosis is verified by detecting C11-BODIPY(581/591)by fluorescent stain after hypoxia-reoxygenation(H/R).Results:As compared with NCD-IRI group, Gpx4 protein expression declined obviously in HFD-IRI group while serum ALT/AST level spiked markedly( P<0.01). IHC staining of 4-HNE is positive, mitochondrial specific damage is more pronounced and inflammatory infiltration became enhanced.As compared with IRI group, serum level of ALT/AST dropped obviously and infiltration of inflammatory cells and secretion of inflammatory factors are blunted markedly in IRI-fer-1 group( P<0.01). Conclusions:A high degree of ferroptosis and severe inflammatory response during fatty liver IR are features of distinguishing steatosis liver IRI from ordinary liver IRI.Targeted inhibition of ferroptosis lowers inflammation and damage during IR in steatosis liver.

Basophils have been neglected for a long time as an immune cell.Recently, it gained respect because of its important role in helper T lymphocytes(Th)2 immune response.Basophils are involved in the pathogenesis of bronchial asthma through a variety of possible mechanisms.Basophils can act as initiators initiate and establish Th2 immune response by interacting with dendritic cells; basophils can act as immune regulators, regulate immune cell functions such as type 2 innate lymphoid cells by secreting cytokines such as interleukin 4 to consolidate allergic inflammation; basophils can also act as immune effectors participate in allergic airway inflammation through IgE-depended and non IgE-depended activation.In addition, clinical research is focused on the usage of basophil activation status as possible biomarker in predicting the outcome of allergic disease therapy, which is of great clinic value in individualized management of asthma.

BACKGROUND: Low-density computed tomography (LDCT) improved early lung cancer diagnosis but introduces an excess of false-positive pulmonary nodules data. Hence, accurate diagnosis of early-stage lung cancer remains challenging. The purpose of the study was to assess the feasibility of using circulating tumour cells (CTCs) to differentiate malignant from benign pulmonary nodules. METHODS: 122 patients with suspected malignant pulmonary nodules detected on chest CT in preparation for surgery were prospectively recruited. Peripheral blood samples were collected before surgery, and CTCs were identified upon isolation by size of epithelial tumour cells and morphological analysis. Laser capture microdissection, MALBAC amplification, and whole-exome sequencing were performed on 8 samples. The diagnostic efficacy of CTCs counting, and the genomic variation profile of benign and malignant CTCs samples were analysed. RESULTS: Using 2.5 cells/5 mL as the cut-off value, the area under the receiver operating characteristic curve was of 0.651 (95% confidence interval: 0.538-0.764), with a sensitivity and specificity of 0.526 and 0.800, respectively, and positive and negative predictive values of 91.1% and 30.3%, respectively. Distinct sequence variations differences in DNA damage repair-related and driver genes were observed in benign and malignant samples. TP53 mutations were identified in CTCs of four malignant cases; in particular, g.7578115T>C, g.7578645C>T, and g.7579472G>C were exclusively detected in all four malignant samples. CONCLUSIONS CTCs play an ancillary role in the diagnosis of pulmonary nodules. TP53 mutations in CTCs might be used to identify benign and malignant pulmonary nodules.
Humans ; Lung Neoplasms ; Exome Sequencing ; Multiple Pulmonary Nodules ; Carcinoma ; DNA Repair