Prognostic Prediction Value and Biological Functions of Non-Apoptotic Regulated Cell Death Genes in Lung Adenocarcinoma / 中国医学科学杂志(英文版)

Objective To explore the potential biological functions and prognostic prediction values of non-apoptotic regulated cell death genes (NARCDs) in lung adenocarcinoma.Methods Transcriptome data of lung adenocarcinoma were downloaded from The Cancer Genome Atlas and Gene Expression Omnibus databases. We identified differentially expressed NARCDs between lung adenocarcinoma tissues and normal tissues with R software. NARCDs signature was constructed with univariate Cox regression analysis and the least absolute shrinkage and selection operator Cox regression. The prognostic predictive capacity of NARCDs signature was assessed by Kaplan-Meier survival curve, receiver operating characteristic curve, and univariate and multivariate Cox regression analyses. Functional enrichment of NARCDs signature was analyzed with gene set variation analysis, Gene Ontology, and Kyoto Encyclopedia of Genes and Genomes. In addition, differences in tumor mutational burden, tumor microenvironment, tumor immune dysfunction and exclusion score, and chemotherapeutic drug sensitivity were analyzed between the high and low NARCDs score groups. Finally, a protein-protein interaction network of NARCDs and immune-related genes was constructed by STRING and Cytoscape software. Results We identified 34 differentially expressed NARCDs associated with the prognosis, of which 16 genes (ATIC, AURKA, CA9, ITGB4, DDIT4, CDK5R1, CAV1, RRM2, GAPDH, SRXN1, NLRC4, GLS2, ADRB2, CX3CL1, GDF15, and ADRA1A) were selected to construct a NARCDs signature. NARCDs signature was identified as an independent prognostic factor (P < 0.001). Functional analysis showed that there were significant differences in mismatch repair, p53 signaling pathway, and cell cycle between the high NARCDs score group and low NARCDs score group (all P < 0.05). The NARCDs low score group had lower tumor mutational burden, higher immune score, higher tumor immune dysfunction and exclusion score, and lower drug sensitivity (all P < 0.05). In addition, the 10 hub genes (CXCL5, TLR4, JUN, IL6, CCL2, CXCL2, ILA, IFNG, IL33, and GAPDH) in protein-protein interaction network of NARCDs and immune-related genes were all immune-related genes. Conclusion The NARCDs prognostic signature based on the above 16 genes is an independent prognostic factor, which can effectively predict the clinical prognosis of patients of lung adenocarcinoma and provide help for clinical treatment.

Effect and Mechanism of Longshengzhi Capsule on Atherosclerosis in ApoE-/- Mice / 中国实验方剂学杂志

ObjectiveTo study the effect of Longshengzhi capsule （LSZC） on high fat diet （HFD）-induced atherosclerosis （AS） in apolipoprotein E knockout （ApoE-/-） mice. MethodApoE-/- mice were fed with HFD for 8 weeks to induce AS. Then the mice were randomized into model group， simvastatin group （4 mg·kg-1）， high-dose LSZC group （1.6 g·kg-1）， medium-dose LSZC group （0.8 g·kg-1）， and low-dose LSZC group （0.4 g·kg-1）. C57BL/6J Mice with normal diet were used as the blank control. After 10 weeks， serum levels of triglyceride （TG）， total cholesterol （TC）， high-density lipoprotein cholesterol （HDL-C）， low-density lipoprotein cholesterol （LDL-C）， malondialdehyde （MDA）， superoxide dismutase （SOD）， interleukin-1β （IL-1β）， and interleukin-6 （IL-6） were detected. Hematoxylin-eosin （HE） and oil red O were used to detect aortic plaque in each group. The levels of CD34 and F4/80 in aorta were determined by immunohistochemistry （IHC）. ResultCompared with the blank control， the model group demonstrated obvious aortic plaque， a large amount of lipid accumulation， serious damage of aortic intima， increase in serum levels of TC， TG， LDL-C， HDL-C， MDA， IL-1β， and IL-6 （P<0.01）， decrease in SOD level （P<0.01）， and rise of the expression of CD34 and F4/80 （P<0.01）. Compared with the model group， LSZC of the three doses all decreased the serum levels of TG and LDL-C （P<0.05）， and the levels of IL-1β and IL-6 （P<0.05， P<0.01）， and the high-dose and medium-dose LSZC improved SOD level， decreased MDA content （P<0.05， P<0.01）， and reduced the expression of the CD34 and F4/80 in blood vessels （P<0.05， P<0.01）. ConclusionLSZC has certain intervention effect on the formation of aortic plaque in atherosclerosis ApoE-/- mice. The mechanism is that it reduces the levels of serum TG and LDL-C to lower blood lipid， decreases MDA level and improves SOD activity to inhibit lipid peroxidation， lowers the levels of IL-1β and IL-6 and down-regulates the expression of CD34 and F4/80 to protect blood vessels from inflammatory damage.

Anti-tumor activity of yeast vesicle biomimetic nanomedicine with the ability of active tumor penetration / 药学学报

The dense extracellular matrix (ECM) of the tumor severely limits the deep penetration of nanomedicine and weakens its anti-tumor effect. Based on this, the yeast vesicle biomimetic nanomedicine with active deep penetration ability of tumor tissue was designed and developed for enhanced tumor therapy. Results of characterization showed that the yeast cell vesicles (YCV) displayed a spherical morphology with diameter of around 100 nm and was well dispersed. Then the chemotherapeutic drug doxorubicin (DOX) was selected as a model drug, and DOX was loaded into YCV to obtain YCV/DOX through electrostatic interaction, the encapsulation efficiencies of DOX were calculated as 82.5%. The drug release profile of YCV/DOX implied that DOX release showed a manner of pH-dependent, it may be that pH has affected the electrostatic effect of YCV and DOX. Compared with liposomes (Lipo), in vitro cell experiments showed that YCV from natural sources had stronger permeability in three-dimensional multicellular spheres. It is speculated that the mechanism may be good deformation capacity of YCV. A 4T1 xenograft tumor model was established to evaluate the therapeutic efficacy of YCV/DOX. The results suggested that YCV/DOX has stronger tumor tissue penetration ability and could effectively inhibit the tumor growth. All animal experiments were performed in line with national regulations and approved by the Animal Experiments Ethical Committee of Zhengzhou University. This study brings new ideas for the development of biomimetic nanomedicine to overcome the ECM of solid tumors.

The neuroprotective effect of rhubarb on MCAO model rats / 中国药理学通报

Aim To study the neuroprotective effect of rhubarb extract on MCAO model rats and explore its mechanism of action. Methods Forty-five SPF male Sprague-Dawley rats were randomly divided into sham group, MCAO group, and MCAO + rhubarb group. MCAO model was prepared by silk plug method, and rhubarb extract was administered at a concentration of 200 mg · kg

Meta-analysis for Qishen Yiqi Dropping Pills in Treatment of Chronic Heart Failure with Syndrome of Qi Deficiency and Blood Stasis / 中国实验方剂学杂志

Objective: To evaluate the efficacy and safety of Qishen Yiqi dropping pills in the treatment of chronic heart failure. Method: Eight databases were searched at home and abroad, and the randomized controlled trials of Qishen Yiqi dropping pills in the treatment of chronic heart failure were screened. Literature quality of the included studies was evaluated by the bias risk assessment tool of Cochrane collaboration network, and the Meta-analysis was performed by RevMan 5.3 software. Result: A total of 606 related literature were retrieved, and 11 studies were eventually included, involving 931 patients. The quality of the included literature was generally low. Meta-analysis results showed that efficacy of Qishen Yiqi dropping pills combined with conventional western medicine was better than conventional western medicine alone in improving B-type natriuretic peptide[weighted mean difference (WMD)=-29.47, 95% confidence interval (CI) (-37.29,-21.64), PPPP=0.005], 6-minute walk test[WMD=50.13, 95%CI (22.32, 77.93), P=0.000 4]. In terms of safety indicators, one study intended to observe safety indicators, but it was not reported in the actual literature, and the remaining studies did not find adverse reactions of Qishen Yiqi dropping pills combined with conventional western medicine. Conclusion: The results of this study support the clinical use of Qishen Yiqi dropping pills combined with conventional western medicine in the treatment of chronic heart failure, but in view of the limitations in the quantity and quality of clinical studies, the positive results are only used as a reminder and reference for clinical diagnosis and treatment. In the future, more high-quality researches are needed to further confirm its efficacy.

Effect of Longshengzhi Capsule on Behavior and Cerebral Protection in Stroke Rats / 中国实验方剂学杂志

Objective:To investigate the effect of Longshengzhi capsule (LSZC) on behavior, serum biochemical index, nuclear transcription factor-κB(NF-κB) and cysteine aspartate-specific protease-3(Caspase-3) in stroke rats. Method:Ischaemic stroke was induced by the permanent middle cerebral artery occlusion (pMCAO). The male sprague-dawley rats with successful pMCAO modeling were randomly divided into five groups:model (pMCAO) group, nimodipine (12 mg·kg-1) group and LSZC groups (2.4, 1.2, 0.6 g·kg-1). A sham group also set in the study. The intragastric administration lasted for 14 days. The rats were tested for neurological deficits, grip strength, rotation tolerance. An open field test was also performed to evaluate the behavior. The pathology of the brain was studied by 2,3,5-triphenyltetrazolium chloride (TTC) staining, and hematoxylin and eosin (HE) staining. In addition, the levels of malondialdehyde (MDA), nitric oxide (NO) and superoxide dismutase (SOD) in rat serum were tested in the experiment. Immunohistochemistry (ICH) and Western blot were used to analyze the expressions of Caspase-3 and NF-κB. Result:Compared the model group, LSZC significantly improved the grip strength, rotation tolerance and spontaneous activity. LSZC markedly reduced infarct volume, water content of brain, neurological scores, body weight decline in MCAO stroke rats (PPPPκB. Conclusion:LSZC treatment can improve neurological deficit function and protect the brain of stroke rats. This effect may be realized by down-regulating the expressions of NF-κB and Caspase-3.

Expressions of SLC22A14 and SPAG6 proteins in the ejaculated sperm of idiopathic asthenozoospermia patients / 中华男科学杂志

Objective@#To investigate the expressions of solute carrier family 22 member 14 (SLC22A14) and sperm-associated antigen 6 (SPAG6) in the sperm of idiopathic asthenospermia men.@*METHODS@#We collected semen samples from 50 idiopathic asthenozoospermia patients and another 50 normal sperm donors, purified the sperm by discontinuous density centrifugation on Percoll gradients, and then determined the mRNA and protein expressions of SLC22A14 and SPAG6 by RT-PCR and Western blot, respectively.@*RESULTS@#Compared with the normal controls, the idiopathic asthenozoospermia patients showed significantly decreased mRNA expressions of SLC22A14 (0.77 ± 0.08 vs 0.53 ± 0.10, P<0.01) and SPAG6 (0.78 ± 0.09 vs0.52 ± 0.10 , P<0.01) and protein expressions of SLC22A14 (0.80 ± 0.09 vs 0.55 ± 0.10 , P<0.01) and SPAG6 (0.78 ± 0.09 vs 0.56 ± 0.09, P<0.01).@*CONCLUSIONS@#T The expressions of SLC22A14 and SPAG6 are reduced in the sperm of the patients with idiopathic asthenospermia, which may be one of the important causes of asthenospermia.

Correlation of the second to fourth digit ratio with the body mass index of infertile men / 中华男科学杂志

<p><b>OBJECTIVE</b>To investigate the relationship between the second to the fourth digit ratio (2D:4D) and body mass index (BMI) in infertile men of the Han ethnic group in Ningxia.</p><p><b>METHODS</b>Using anthropometry, we calculated the mean ratio of 2D:4D and BMI of 197 infertile men and 148 normal healthy male controls, followed by analysis of their relationship.</p><p><b>RESULTS</b>The BMI was correlated positively with the 2D:4D ratio of the left hand in the infertile men (P < 0.05) and in the patients with a higher 2D:4D ratio of the left hand (P < 0.05), but negatively with the 2D:4D ratio of the righ/left (Dr-1) (left: P < 0.01; Dr-l: P < 0.05). The mean 2D: 4D ratio and BMI were both lower in the normal control than in the infertile men, with statistically significant differences in BMI (P < 0.05) and the 2D:4D ratio of the left hand (P < 0.05).</p><p><b>CONCLUSION</b>There is a correlation between the 2D:4D ratio and BMI in infertile men.</p>

Optimal Conditions for the Mycelial Growth of Coprinus comatus Strains

The principal objective of this study was to acquire basic data regarding the mycelial growth characteristics for the artificial cultivation of Coprinus comatus. 12 URP primers were employed to evaluate the genetic relationships of C. comatus, and the results were divided into three groups. Among six kinds of mushroom media, MYP medium was selected as the most favorable culture medium for C. comatus. The optimal temperature and pH ranges for the mycelial growth of C. comatus were 23~26degrees C and pH 6~8, respectively. The carbon and nitrogen sources for optimal mycelial growth were sucrose and tryptone, respectively.

Effects of siRNA against Ki67 gene on the proliferation and apoptosis of human renal carcinoma cells / 中华泌尿外科杂志

Objective To evaluate the effects of small interfering RNA(siRNA)against Ki67 gene on the proliferation and apoptosis of human renal carcinoma cell line 786-0 cells.Methods The human renal carcinoma 786-0 cells were treated with Ki67-siRNA(100 nmol/L).The mRNA expression of Ki67 was detected by RT-PCR.The protein expression of Ki67 was detected by Western blot and immunohisto- chemical technique,respectively.The proliferation of 786-0 cells was detected by MTT assay.The apoptosis of 786-0 cells was detected by TUNEL assay.Results RT-PCR and Western blot analysis showed that the Ki67 mRNA and Ki67 protein expression levels of the 786-0 cells treated with Ki67-siRNA were(37.6?1.9)% and(46.4?0.9)% ,respectively,which were significantly lower than those of controls [(97.3?0.9)% and(95.3?0.9)%,P＜0.01],The Ki67 positive expression rate of 786-0 cells treated with Ki67-siRNA by immunohistochemical technique was 52.5?2.3,which was significantly lower than that of controls(114.5?4.9 ,P＜0.01).The proliferation-inhibiting rate and apoptosis rate of the 786-0 cells trea- ted with Ki67-siRNA were( 63.6?1.6)% and(41.7?0.6)% ,respectively,which were significantly higher than those of controls [(2.8?0.2)% and(10.3?1.4)%,P＜0.01].Conclusions siRNA against Ki67 gene can inhibit the proliferation and induce the apoptosis by blocking Ki67 expression of hu- man renal carcinoma 786-0 cells.The inhibition of Ki67 expression by siRNA may be a promising approach in gene therapy for renal cancer.