Establishment of HPLC characteristic chromatogram and quantitative transmission laws for Baqi Rougan Decoction reference sample / 中成药

AIM To establish the HPLC characteristic chromatogram of Baqi Rougan Decoction reference sample,and to investigate its quantitative transmission laws.METHODS The contents of calycosin 7-O-glucoside,hesperidin,rosmarinic acid,curcumenol and nystose were determined.The transfer rates of decoction piece-aqueous decoction-reference sample were calculated,after which the paste-forming rate and pH value were recorded.RESULTS There were sixteen characteristic peaks in fifteen batches of reference samples with the similarities of 0.90,nine of which were identified.The average transfer rates of nystose and calycosin 7-O-glucoside in the reference sample were(83.14±6.25)%and(77.81±8.31)%,while those of rosmarinic acid and curcumenol in the aqueous decoction-reference sample were(81.71±6.27)%and(72.16±5.91)%,along with the average paste-forming rate and pH value of(38.91%±1.46%)and 5.13±0.08,respectively.CONCLUSION This stable and feasible method can provide a reference for the selection of preparation process and evaluation of key chemical properties for Baqi Rougan Decoction.

Analysis of differential expression profile of circRNA in pancreatic cancer based on high⁃throughput sequencing technology / 安徽医科大学学报

Objective@#To screen the differential expression profile of circular RNA (circRNA) in pancreatic cancer and analyze its potential function.@*Methods@#Four pairs of pancreatic cancer tissues and corresponding adjacent pancreatic tissues were selected for high⁃throughput sequencing , and the differentially expressed circRNA was screened according to fold change > 2 and P < 0. 05. qRT⁃PCR was used to detect the expression of 5 randomly selected differentially expressed circRNA in 20 pairs of pancreatic cancer tissue samples. GO and KEGG enrichment analysis of differentially expressed circRNA was performed , and the top 50 circRNA⁃microRNA interaction network was constructed. The relationship between hsa_circ_0046523 and the clinicopathological features of pancreatic cancer was further analyzed , and the effects of hsa_circ_0046523 on the proliferation , migration and invasion of pancreatic cancer cells were observed by functional experiments.@*Results@#A total of 17 182 circRNA were predicted by high⁃throughput sequencing , of which 302 circRNA were differentially expressed including 137 circRNA were upregulated and 165 circRNA were downregulated in pancreatic cancer tissues. The qRT⁃PCR results showed that the expression levels of hsa_circ_0046523 , hsa_circ_0004220 and hsa_circ_0000690 in pancreatic cancer tis⁃sues were significantly upregulated (P<0.05)，while the expression levels of hsa_ ir_0008676 and hisa _ circ_0004416 were significantly downregulated (P<0.05）.which was consistent with the sequencing results.GO analysis indicated that differentially expressed circRNA were mainly involved in substrate-dependent cell migration, protein kinase complex and cytoskeletal protein bindinig.KEGG pathway enrichment analysis showed that differentially expressed circRNA were mainly involved in protein digestion and absorption , ABC transporters , central carbon metabolism in cancer,and glycineserine and threonine metabolism pathways.The expression level of hsa_ circ_0046523 was closely correlated with tumor differentiation (P=0.002),T stage (P=0.006),lymph node metastasis (P=0.011) and TNM stage (P=0.001).Compared with HPDE6-C7 cells the expression of hsa_circ_0046523 significantly inc increased in pancreatic cancer SW1990, Mia PaCa-2BxPC-3 and Capan-2 ceIls (P<0.05). hsa_circ_ 0046523 knockdown significantly inhibited the proliferation, migration and invasion of pancreatic cancer Mia PaCa⁃2 BxPC⁃3 cells (P < 0. 05) . @*Conclusion@#There are characteristic differentially expressed circRNAs in pancreatic cancer tissues , and these differentially expressed circRNAs may be involved in the occurrence and development of pancreatic cancer.

[Short-term curative effect of electroacupuncture as an adjunctive treatment on schizophrenia].

OBJECTIVE: To compare the short-term curative effect of clozapine (CZ) and its combination with electroacupuncture (EA) in treating schizophrenia. METHODS: Ninety schizophrenia patients were randomly divided into two groups equally: the EA group treated with combination of CZ (200 - 300 mg/d in mean) and EA, and the CZ group treated with CZ alone. The effects of treatment were evaluated with PANSS, CGI and TESS before and at the 2th, 4th, 6th and 8th weekend of the treatment. RESULTS: The initiation of effect in the two groups was the same, the total effective rate was 75% in the EA group and 73% in the CZ group. However, somatic complaint was lower and compliance was higher in the EA group than that in the CZ group respectively. CONCLUSION: With the effect equal to CZ, combination of CZ and EA shows higher compliance in treating schizophrenia, which would be beneficial in the later stage treatment for consolidation.

Study on application effect of risk management in medical device management of hospital and its impact on management quality / 中国医学装备

Objective:To discuss application effect of risk management in medical device management of hospital and its impact on management quality.Methods:9800 medical devices of hospital were selected and divided into routine management group (the corresponding medical devices came from the term of 2014 year to 2015 year, n=4900) and risk management group (the corresponding medical devices came from the term of 2014 year to 2015 year, n=4900) according to different management method.The arrangement and placement of device, the specification and quantity of device, the placement of accessories and the intact situation of widgets of the two groups were recorded and calculated as statistics method.A self-designed questionnaire was adopted to assess these situations included classification error, incompetence, loss of device, undersupply, instrument damage, the timeliness degree of supply, the timeliness degree of withdrawing and quality of packaging in the management process for medical devices.And the management effects of two groups and the corresponding influences of them for curative effect were further compared.Results:The arrangement and placement of medical device, the different specification and quantity of device, the placement of accessories, intact rate of widgets of risk management group were significantly higher than those of■timeliness degree of supply, the timeliness degree of withdrawing and quality of packaging of risk management group post management were significantly higher than those of routine group (t=20.394, t=21.847, t=16.481, P<0.05) .Conclusion:The effect of risk management that is used in medical equipment management of hospital is significant, and it contribute to improve the management quality for medical apparatus and instruments and reduce the error rate of instruments, and it can ensure the safety usage of them in hospital.

Application of droplet digital PCR in the precision treatment of breast cancer / 中国肿瘤临床

In the context of precision medicine, although individual treatment of breast cancer under the guidance of molecular classi-fication has become the norm, a precision treatment program with increased efficiency and quality is still required. Compared with the traditional real-time fluorescent quantitative polymerase chain reaction (PCR), the droplet digital PCR (ddPCR) has obvious advantages in the detection of rare mutations and copy number variations, as well as the integration with the second-generation-sequencing tech-nology. This paper reviews the application of a ddPCR platform in different breast cancer subtypes and explores new horizons of breast cancer research through the ddPCR technology.

Clinical pathology significance of Hepsin in breast infiltrating ductal carcinoma / 实用肿瘤学杂志

Objective To investigate the expression of hepsin and its role in the pathogenesis of breast infiltrating ductal cancer ( BIDC) .Methods The expression level of hepsin was examined by immunobloting and immunohistochemistry in breast tissue samples from 8 healthy controls and 139 patients with BIDC,respectively. The correlation between hepsin level and its significance in clinical pathology of BIDC was assessed by statistical analysis.Results High level of hepsin was detected in nearly 70.5 percent of BIDC samples(98 out of 139)by immunobloting and immunohistochemistry , while the level of hepsin was relatively low or hardly detectable in healthy controls.In addition,there was a significant correlation between hepsin level and clinical stages as well as the level of histological differentiation of BIDC .Conclusion Increased expression of hepsin might play an impor-tant role in pathogenesis and progression of BIDC .The level of hepsin is positively correlated to clinical stages of BIDC,but negatively correlated with the level of histological differentiation of BIDC .

The expression and prognostic significance of tumor suppressor gene ING1 in colorectal cancer / 实用肿瘤学杂志

Objective Inhibitor of growth 1 ( ING1 ) gene has been identified as a novel candidate of tumor suppressor gene .Over-expression of ING1 plays well-established roles in numerous cell processes ,inclu-ding DNA repair and cell apoptosis .Our study is to investigate the clinical significances of expression of ING 1 in colorectal cancer ( CRC) .Methods The mRNA level of ING1 in 82 matched samples comprising primary CRC and paired non-cancerous mucosa were detected and compared by quantitative RT -PCR.Then the correlations of mRNA level of ING1 with the clinicopathological characteristics and prognosis of patients with CRC were ana -lyzed.Results (1)In the same matched tissues,the expression level of ING1 was significantly higher in normal tissues than that in cancer tissues.(2)mRNA expression of ING1 was associated with certain clinical -pathologic variables such as tumor infiltrating level ,lymphatic metastasis,distant metastasis and advancing TNM stage .(3) We obtained the expression levels ratio of cancer tissue and normal tissue and found the lower ratio has a lower Disease-Free Survival(DFS)(P<0.0001).(4)ING1,as a candidate of tumor suppressor gene ,remained a sta-tistically-significant prognostic marker in the Cox regression analysis .Conclusion Down-regulation of ING1 may be correlated tightly with the occurrence and progression of sporadic colorectal cancer .Its expression level can be used to predict prognosis of CRC .