Rhodiola capsules show the resistant effects on ischemia, anoxia, radiation, fatigue and virus and so on, and can im-prove the body immune function to relief the plateau symptoms such as fatigue and cerebral hypoxia. The influence mechanism of rhodi-ola capsules in the effect of anti-high altitude pulmonary edema was summarized in the paper.

Objective To evaluate the protective effect of epigallocatechin gallate (EGCG) against interleukin (IL)-17-induced injury to keratinocytes,and to explore its mechanism.Methods Some cultured HaCaT cells were divided into 3 groups to be treated with IL-17 alone at concentrations of 50,70,90 μg/L,respectively,with those receiving no treatment as the blank control group.Some HaCaT cells were divided into 5 groups:IL-17 group treated with 90 μg/L IL-17 alone,IL-17 + EGCG group treated with 90 μg/L IL-17 and 60 μmol/L EGCG,IL-17 + SP600125 group treated with 90 μg/L IL-17 and SP600125 (a JAK signaling pathway inhibitor),IL-17+ EGCG + anisomycin group treated with 90μg/L IL-17,60xmol/L EGCG and anisomycin (a Janus kinase signaling pathway activator),and blank control group receiving no treatment.After different durations of treatment,CCK-8 assay was performed to evaluate cellular proliferative activity,flow cytometry to detect cell apoptosis,enzyme-linked immunosorbent assay (ELISA) to measure expression levels of IL-6,IL-23 and IL-8,and Western-blot analysis to determine protein expressions of c-Jun N-terminal kinase (JNK) and phosphorylated JNK (P-JNK).Results IL-17 promoted cellular proliferation of HaCaT cells,and the proliferation rate,which was correlated with the concentration of IL-17,reached the maximum in the 90-μg/L IL-17 group (P ＜ 0.05).EGCG at 60 μmol/L significantly inhibited cellular proliferation of,promoted apoptosis in,and reduced IL-6,IL-23 and IL-8 expressions in,HaCaT cells induced by 90 μg/L IL-17 (all P ＜ 0.05).Compared with the IL-17 group,the IL-17 + EGCG group and IL-17 + SP600125 group both showed significantly decreased P-JNK expression,cell proliferation rate and IL-6,IL-23 and IL-8 expression levels (all P ＜ 0.05).However,compared with the IL-17 + EGCG group,the IL-17 + EGCG + anisomycin group showed significantly increased protein expression of P-JNK,cell proliferation rate and IL-6,IL-23 and IL-8 expression levels (all P ＜ 0.05).Conclusion EGCG protected against IL-17-induced injury to HaCaT cells,such as abnormal cell proliferation,apoptosis and inflammatory response,likely by inhibiting the JNK signaling pathway.

Objective:This article analyzes the epidemic situation and characteristics of Corona virus disease 2019 (COVID-19) in Russian Federation (referred to as Russia), summarizes the effective measures and problems exposed by Russia to deal with COVID-19, so as to provide reference for our country's epidemic prevention and control, and seek the direction of cooperation under the background of Sino Russia scientific and technological innovation in view of public health emergency.Methods:The epidemic characteristics and prevention and control measures were analyzed based on the data released by official authoritative news media such as Sputnik News Agency & Radio and Stopcoronavirus Website.Results:Russia's first confirmed case was on January 31, 2020 and its first peak of epidemic outbreak was on May 10, 2020. Thanks to a series of prevention and control measures and isolation and detection systems established by the Russia government according with national conditions, such as establishment of COVID-19 medical treatment centers, restrictions on alcohol sales, and the accelerating development of the vaccine and test kit the epidemic was basically controlled at the end of August in 2020. In September, Russia saw the second peak of the outbreak of COVID-19.Conclusions:The fatality rate of COVID-19 in Russia has been at a low level. Therefore, its prevention and control measures, experience and even its deficiencies are worth of learning by China. And we should also strengthen cooperation with Russia in the field of vaccine research and development and its clinical trials.

Objective To investigate the effect of the exogenous fragile hisdidine triad(FHIT) gene on the proliferation and the apoptosis of cutaneous carcinoma cell line A431,and to explore the mechanism of tumor suppression by the FHIT gene.Methods The plasmids pcDNA3-FHIT and pcDNA3-vector were transfected into the cutaneous carcinoma cell line A431 without FHIT gene expression,and then the transfected cells were screened by G418 and the expression of FHIT was determined by the immunocytochemical staining technique.The effect of FHIT on the growth characteristics of cutaneous carcinoma cell line A431 was observed by MTT,colony forming test and flow cytometry.Results Stable FHIT gene expressing A431 cells were produced,the proliferation activity and colony forming capability of A431FHIT were suppressed,whereas the apoptosis was increased.All these differences between A431-FHIT cells and the two control groups of cutaneous carcinoma cells had statistical significance.Conclusion Transfecting the exogenous FHIT gene into cutaneous carcinoma cells line A431can suppress the proliferation of tumor cells,and can also induce apoptosis and cell cycle arrest.

Objective To investigate the clinical effect of low frequency electrical pulse therapy combined with α-lipoic acid on diabetic gastroparesis in elderly patients with type 2 diabetes.Methods A total of 65 patients diagnosed as diabetic gastroparesis were selected from our hospital and divided into three groups according to random number table:the control group(n =23,the α-lipoic acid treatment),the conventional treatment group (n =16),and the experimental group (n =26,treating with α-lipoic acid combined with low-frequency electrical pulse therapy).All patients received the conventional diabetic therapy.Clinical effects,gastric emptying rate and serum gastrin(GAS) and fasting blood glucose levels were compared before versus after treatment among the three groups.Results The cure and total effective rates were higher in the experimental group than in the control group [46.15％ (12 cases) vs.30.43％ (7 cases),80.76％ (20 cases) vs.65.21％ (15 cases),x2 =0.867,P＜0.05].There were significant differences in gastric emptying rate,serum gastrin and fasting plasma glucose levels among the 3 treatment groups before versus after treatment.And the gastric emptying rate and serum gastrin level were better improved in the experimental groups compared with the conventional treatment and control groups.Conclusions The low-frequency electrical pulse therapy combined with α-lipoic acid has a significant clinical efficacy,which can improve clinical effects,promote gastric emptying,decrease fasting plasma glucose levels in elderly patients with type 2 diabetes.

Objective To explore radiation-induced esophagitis and its related factors in the patients with local advanced non-small cell lung cancer ( NSCLC ) which were treated with three-dimensional conformal radiation therapy (3D-CRT). Methods From January 2001 to December 2008, 203 patients who suffered from stageⅢNSCLC were achieved, including 163 males and 40 females, with a median age of 63 years old, while 79 cases were in stageⅢa and 124 in stageⅢb . The equivalent median dose of tumor was 62 Gy( range of 50-78 Gy) . Among them, 74 cases were administered with radiotherapy alone, 45 with sequential radiotherapy and chemotherapy, 87 cases with concurrent radiochemotherapy. Radiation esophagitis was evaluated with RTOG standard. The dosimetric parameters was estimated from dose volume histogrma ( DVH ) . The clinical and dosimetric parameters of radiation esophagitis were evaluated by spearman correlatived univariate and Logistic multivariable analysis. Results After radiotherapy, out of 203 patients, 87 had acute radiation esophagitis(RE), 47 in grade 1, 37 in grade 2, and 3 in grade 3 RE. According to spearman correlatived analysis, the correlatived factors included ages, chemotherapy, GTV, PTV, the mean doses of PTV and lung, the max and mean dose of esophagus, V40 , V45 ,V50 ,V55 ,V60 , length of esophagus( total circumference) treated with 45 Gy ( LETT45 ) , and LETT50 ( r=-0. 162-0. 235,P<0. 05). All the 14 factors had good correlation with RE in univariate analysis. But for other factors,such as gender, site of tumor, smoking, T, N, clinical stage, equivalent dose of tumor, style of radiation, the mean dose of GTV, LETT55 and LETT60 , there were not correlation with ≥grade 2 RE with univariate analysis(r= -0. 106-0. 122, P>0. 05). There were 21 factors, such as gender, age, smoking, clinical stage, site of tumor, chemotherapy, GTV, PTV, mean dose of PTV and lung, max and mean dose of esophagus, V40 -V60 of esophagus, LETT45-60 , incorporated into multivariable analysis, only chemotherapy and V45 of esophagus were independent predicted factors(Wald=4. 626, 9?882, P<0. 05). Conclusions In local advanced NSCLC after 3D-CRT, chemotherapy ( especially concurrent radiochemotherapy) could increase radiation-induced esophagitis. The parameter of DVH could also be used to predict radiation-induced esophagitis, V45 of esophagus may be the most valuable predictor.

Objective To investigate the value of 18F-FDG PET/CT in the evaluation of treatment response and prognosis for patients.with recurrent uterine cervical cancer.Methods Forty-five patients with recurrent uterine cervical cancer underwent 18F-FDG PET/CT before and after treatment from October 2004 to December 2014,and their PET/CT results were retrospectively analyzed.Treatment response was categorized as complete metabolic response (CMR),partial metabolic response (PMR),stable metabolic disease (SMD) and progressive metabolic disease (PMD) according to PET response criteria in solid tumors (PERCIST).Kaplan-Meier survival analysis was used.The difference of progression-free survival (PFS) between patients with and without PMD was compared by x2 test.The PFS difference among patients with different SUVmax on pretreatment PET/CT was also compared byx2 test.Results After treatment,22.2％ (10/45) of patients were categorized as CMR,22.2％(10/45) as PMR,4.4％(2/45) as SMD and 51.1％ (23/45) as PMD by post-treatment 18F-FDG PET/CT.Thirty-two patients had long-term (6-64 months) clinical follow-up.The PFS was 1-64 months and the median PFS was 5 months.The patients without PMD had a significantly better PFS than those with PMD(12.2 vs 4.2 months,x2 =7.223,P＜0.01).Patients with lesion SUVmax＜7.5 on pretreatment PET/CT had a better PFS than those with SUVmax ≥7.5 (16.3 vs 5.9 months,x2 =5.415,P＜0.05).Conclusion 18F-FDG PET/CT is useful forthe evaluation of treatment response and prognosis in patients with recurrent cancer of the uterine cervix.

Apoptosis ; Carcinoma, Squamous Cell ; metabolism ; pathology ; Cell Line, Tumor ; Down-Regulation ; Glucosephosphate Dehydrogenase ; metabolism ; Humans ; Neoplasm Invasiveness ; Skin Neoplasms ; metabolism ; pathology

Objective To investigate the effects of UDP glucuronosyltransferase (UGT) 1A9 I399 C ＞ T single nucleotide polymorphism on postoperative sedation with propofol in patients undergoing breast surgery.Methods One hundred and fifty-two ASA Ⅰ or Ⅱ female patients,aged 20-50 yr,weighing 50-70 kg,scheduled for elective benign breast tumor excision under general anesthesia,were enrolled in this study.The polymorphic sites of the UGT1A9 I399 C ＞ T allele were analyzed by polymerase chain reaction-restriction fragment length polymorphism.The patients were assigned to one of 3 groups according to their genotypes:wild homozygote (C/C) group,mutation heterozygote (C/T) group and mutation homozygote (T/T) group.During induction and maintenance of anesthesia,propofol was given by target-controlled infusion with the plasma concentration (Cp) of 3μg/ml.Blood samples were taken at 60 min after target-controlled infusion of propofol was started for determination of the Cp of propofol using high-performance liquid chromatography.The time when OAAS was 4 after stopping the infusion of propofol was recorded and the BIS value and effect-site concentration of propofol were also recorded at this time.The time when BIS value was 80 was recorded and the effect-site concentration of propofol was also recorded at this time.Results Genotyping analysis revealed that genotype distribution of UGT1A9 I399 C ＞ T polymorphism was C/C 24 cases,C/T 96 cases and T/T 32 cases.The T allele frequency was 53％.The C allele frequency was 47.4％.There was no significant difference in the Cp of propofol,time when OAAS was 4,BIS value and effectsite concentration of propofol when OAAS was 4,time when BIS value was 80 and effect-site concentration of propofol when BIS value was 80 among the three groups (P ＞ 0.05).Conclusion UGT1 A9 I399C ＞ T single nucleotide polymorphism is not the genetic factor contributing to the individual variation in the patient' s response to postoperative analgesia with propofol in patients undergoing breast surgery.

ObjectiveTo investigate the role of Notch1 gene in xenografted human cutaneous squamous cell (SCL-1) carcinoma. MethodsFifteen nude mice were divided into three groups, including untreated group(inoculated with SCL-1 cells treated with phosphate buffered saline), empty vector group (inoculated with SCL-1 cells transfected with empty vector) and Notch1 group(inoculated with SCL-1 cells transfected with Notch1 expression vector). All the mice were inoculated with SCL-1 cells(1 x 108/ml) of0.2 ml. Then, the growth of xenografted tumor was observed every other day. Fifteen days later, the mice were sacrificed, tumor tissue was dissected and subjected to terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay for the detection of cell apoptosis, reverse-transcription(RT)-PCR and Western blot for the examination of mRNA and protein expressions of Notch1, bcl-2 and bax, respectively. ResultsThe proliferation of xenografted tumor in Notch1 group was obviously inhibited compared with the untreated group. The weight of xenografted tumor in Notch1 group was significantly lower than that in the untreated group and empty vector group (0.574 ± 0.219 g vs. 2.642 ± 0.404 g and 2.606 ± 0.512 g, F= 26.642, P＜ 0.01). TUNEL assay demonstrated that the number of apoptotic cells per 500 cells in tumor tissue specimens was(87 ± 9) in Notch1 group, evidently higher than that in the untreated group(8 ± 2) and empty vector group(10 ± 3) (F = 194.266, P ＜ 0.05 ). Further, RT-PCR and Western blot revealed that the mRNA and protein expressions of Notch1 and bax were significantly upregulated, but those of bcl-2 were markedly downregulated in the Notch 1 group, with significant difference among the three groups(all P ＜ 0.05). ConclusionsNotch 1 gene can inhibit the growth of xenogra ffted human cutaneous squamous cell(SCL-1) carcinoma and induce SCL-1 cell apoptosis likely by upregulating bax expression and downregulating bcl-2 expression.