Value of CT pulmonary vascular quantitative parameters in diagnosis of chronic obstructive pulmonary disease patients and high-risk groups / 中华放射学杂志

Objective:To explore the diagnostic value of CT pulmonary vascular quantitative parameters in patients with chronic obstructive pulmonary disease (COPD) and high-risk groups.Methods:A retrospective study of 1 126 patients who underwent chest CT examination and pulmonary function test in Shanghai Tongji Hospital from January 2015 to August 2020. According to lung function, they were divided into COPD group (471 cases), high-risk group (454 cases), and normal control group (201 cases). Pulmonary vascular parameters on chest CT, including the total number of vessels (N total), the number cross-sectional area of vessels under 5 mm 2 (N CSA<5), lung surface area (LSA), number of pulmonary blood vessels per unit lung surface area (N total/LSA) and the total area of vessels (VA total) at a 9, 15, 21 mm depth from the pleural surface, and the total blood vessel volume (TBV), blood vessel volume under 5 mm 2 and 10 mm 2(BV5 and BV10) were measured quantitatively. Kruskal-Wallis H test was used to compare the differences of quantitative parameters of pulmonary vascular in the three groups; Spearman rank test was used to analyze the correlation between CT pulmonary vascular parameters and pulmonary function. Results:There were significant differences in N total/LSA at a 9, 15, 21 mm depth from the pleural surface among three groups ( P<0.05). There were significant differences in N CSA<5, N total at a 9 mm depth from the pleural surface among three groups ( P<0.05). There were significant differences in LSA at a 9 mm depth from the pleural surface, N CSA<5, N total, LSA, VA total at a 15, 21 mm depth from the pleural surface and TBV, BV5 and BV10 among three groups ( P<0.05). In high-risk group, there were positive correlation between N total/LSA, VA total at a 9 mm depth from the pleural surface and some pulmonary function parameters ( r=0.095-0.139, P<0.05). N CSA<5, N total, LSA, N total/LSA, TBV, BV5 and BV10 at different depth from pleural surface were negatively correlated with some pulmonary function parameters ( r=-0.110--0.215, P<0.05). In COPD group, number of vessels at a 9 mm depth from the pleural surface was positively correlated with the diffusion capacity for carbon monoxide of the lung single breath ( r=0.105, 0.103, P<0.05). In addition to N total/LSA were positively correlated with lung function parameters ( r=0.181-0.324, P<0.05), the remaining pulmonary vascular parameters were negatively correlated with some pulmonary function parameters ( r=-0.092--0.431, P<0.05). Conclusion:Quantitative chest CT imaging are able to effectively evaluate pulmonary vascular changes in COPD patients and high-risk groups, and the quantitative parameters of pulmonary vascular CT may distinguish COPD from high-risk groups, providing a novel means for early diagnosis of COPD and prediction of high-risk groups.

Radiotherapy of all metastatic lesions in metachronous oligometastatic prostate cancer / 中华泌尿外科杂志

Objective:To investigate the efficacy and safety of radiotherapy for all metastases in patients with metachronous oligo-metastatic prostate cancer after radical treatment.Methods:From October 2011 to February 2021, 41 patients with prostate cancer with less than 5 metastases after radical treatment were retrospectively analyzed in a single center. The median age at radiotherapy was 68 (57-81) years. Forty patients (98%) received androgen deprivation therapy (ADT). There were 28 patients in the hormone sensitive (HSPC) group and 13 patients in the hormone resistant (CRPC) group. The median initial PSA was 24.4 (7.4-399.0) ng/ml. Tumor stage: T 2 stage 11 patients, T 3 stage 27 patients, T 4 stage 3 patients.30 patients were in N 0 stage and 11 patients in N 1 stage. Gleason score was 7 in 12 patients, 8 in 9 patients, 9 in 18 patients, and 10 in 2 patients.33 patients were treated with surgery, and 8 patients were treated with radiotherapy. The time span from diagnosis to metastasis was 3.1 (0.2-1.8) years. Conventional imaging examination (CT/ MRI/bone scan) before radiotherapy was used in 7 patients, and PSMA PET/CT examination was used in 34 patients.The median PSA before radiotherapy was 1.3(0.1-33.8) ng/ml. There were 62 metastases in 41 patients, including 1 lesion in 28 patients, 2 lesions in 9 patients, 3 lesions in 2 patients, and 5 lesions in 2 patients. Fifty-four patients had bone metastases and eight had retroperitoneal lymph node metastases. Twenty-two bone metastases were located in the pelvis, 18 in the vertebral body, 12 in the ribs, one in the femur and one in the sternum.The median metastatic volume was 5.8(0.2-81.7) cm 3.Daily image-guided rotational intensity modulated radiotherapy was used to cover all metastases.Dose segmentation modes include 37.5Gy/7.5Gy/5F, 60Gy/3Gy/20F, 65-70Gy/2.6-2.8Gy/25F.The median biological effective dose (BED 3) was 120 (67-147) Gy. The primary endpoint was biochemical progression-free survival (BPFS), the secondary endpoints were acute and late toxic side effects, local relapse-free survival (LPFS), and overall survival (OS). Results:The median follow-up time was 21 months (range 5-72 months). All patients completed radiotherapy, and 16 patients had grade 1 to 2 acute toxicity and side effects, and no grade 3 or above acute and late stage side effects. 1-year LPFS was 97.1%.The 1-year and 2-year BPFS were 77.5% and 59.2%, respectively. The median BPFS time was 29 months (range 13.9-44.2 months). Univariate analysis showed that the HSPC group ( P<0.001) and the group with total metastatic volume ≤ 5.8cm 3 ( P=0.010) had higher BPFS. The median BPFS time was 37 months in the retroperitoneal lymph node metastases subgroup and 17 months in the bone metastases subgroup ( P=0.141). In the HSPC group, the median BPFS was 30(22-38) months. After radiotherapy, PSA decreased in all 28 patients, and increased in 6 patients. The median BPFS was 12(4-18) months. In the CRPC group, the median BPFS was 4(0-8) months. PSA decreased in 10 patients (76.9%) after radiotherapy, and PSA decreased in 6 patients. The median BPFS was 5(3-28) months. Three patients’PSA did not decrease after radiotherapy, and they were treated with new endocrine therapy drugs, chemotherapy, immunotherapy and other systemic therapy. Conclusions:For patients with metachronous metastases after radical treatment, full coverage radiotherapy has good safety and high local control rate. HSPC patients and patients with low tumor load could be recommended to receive radiotherapy for all metastatic lesions preferentially, and patients with only retroperitoneal lymph node metastases may have better prognosis after radiotherapy than patients with bone metastases.

DDB1- and CUL4-associated factor 8 plays a critical role in spermatogenesis / 医学前沿

Cullin-RING E3 ubiquitin ligase (CRL)-4 is a member of the large CRL family in eukaryotes. It plays important roles in a wide range of cellular processes, organismal development, and physiological and pathological conditions. DDB1- and CUL4-associated factor 8 (DCAF8) is a WD40 repeat-containing protein, which serves as a substrate receptor for CRL4. The physiological role of DCAF8 is unknown. In this study, we constructed Dcaf8 knockout mice. Homozygous mice were viable with no noticeable abnormalities. However, the fertility of Dcaf8-deficient male mice was markedly impaired, consistent with the high expression of DCAF8 in adult mouse testis. Sperm movement characteristics, including progressive motility, path velocity, progressive velocity, and track speed, were significantly lower in Dcaf8 knockout mice than in wild-type (WT) mice. However, the total motility was similar between WT and Dcaf8 knockout sperm. More than 40% of spermatids in Dcaf8 knockout mice showed pronounced morphological abnormalities with typical bent head malformation. The acrosome and nucleus of Dcaf8 knockout sperm looked similar to those of WT sperm. In vitro tests showed that the fertilization rate of Dcaf8 knockout mice was significantly reduced. The results demonstrated that DCAF8 plays a critical role in spermatogenesis, and DCAF8 is a key component of CRL4 function in the reproductive system.

Effect of CASC19 on proliferation, apoptosis and radiation sensitivity of cervical cancer cells by regulating miR-449b-5p expression / 中华妇产科杂志

Objective:To investigate the effects of cancer susceptibility candidate gene 19 (CASC19) regulating the expression of microRNA-449b-5p (miR-449b-5p) on the proliferation, apoptosis and radiation sensitivity of cervical cancer cells.Methods:(1) HeLa cells of cervical cancer cell line were cultured. HeLa cells were irradiated with X-ray at different doses (0, 2, 4, 6, 8 Gy, respectively), then the expression level of CASC19 mRNA and miR-449b-5p were detected by real-time quantitative PCR. (2) HeLa cell proliferation, apoptosis, radiation sensitivity (expressed as a survival fraction) and its related protein expression included cyclin D1, cleaved-caspase-3, and histone variant H2AX (γ-H2AX) were examined after different treatment including silencing CASC19 expression, over-expressing miR-449b-5p, down-regulating miR-449b-5p and silencing CASC19 expression. (3) The dual luciferase reporter gene experiment and real-time quantitative PCR technology were used to verify the targeting relationship between CASC19 and miR-449b-5p.Results:(1) With the increase of X-ray irradiation different dose (0, 2, 4, 6, 8 Gy), the expression level of CASC19 mRNA in HeLa cells gradually increased ( F=502.681, P=0.000), and the expression level of miR-449b-5p gradually decreased ( F=202.936, P=0.000).(2) After silencing CASC19 expression or over-expressing miR-449b-5p, the survival rate of HeLa cells was significantly reduced ( P<0.05), the apoptosis rate was significantly increased ( P<0.05), the survival fraction was significantly reduced ( P<0.05), the expression level of cyclin D1 protein was significantly reduced ( P<0.05), and the expression levels of cleaved-caspase-3 and γ-H2AX protein were significantly increased ( P<0.05). After down-regulating miR-449b-5p and silencing CASC19 expression, the survival rate of HeLa cells was significantly reduced ( P<0.05), the apoptosis rate was significantly increased ( P<0.05), the survival fraction was significantly reduced ( P<0.05), the expression levels of cyclin D1 and γ-H2AX protein were significantly increased ( P<0.05), and the expression level of cleaved-caspase-3 was significantly decreased ( P<0.05). (3) Over expression of miR-449b-5p could significantly reduce the luciferase activity of CASC19 wild type (1.00±0.09 versus 0.37±0.05, P<0.01), but there were no significant effect on the luciferase activity of CASC19 mutant type (0.92±0.07 versus 0.94±0.05, P>0.05). After the expression of CASC19 was silenced, the expression level of miR-449b-5p in HeLa cells increased significantly (1.00±0.12 versus 4.84±0.49, P<0.05). After overexpression of CASC19, the expression level of miR-449b-5p in HeLa cells was significantly reduced (1.00±0.09 versus 0.38±0.04, P<0.05). Conclusion:CASC19 in HeLa cells negatively regulates the expression of miR-449b-5p, and down-regulating the expression of miR-449b-5p could partially reverse the effects of silencing CASC19 on HeLa cell proliferation, apoptosis and radiation sensitivity.

Effect of CASC19 on proliferation, apoptosis and radiation sensitivity of cervical cancer cells by regulating miR-449b-5p expression / 中华妇产科杂志

Objective@#To investigate the effects of cancer susceptibility candidate gene 19 (CASC19) regulating the expression of microRNA-449b-5p (miR-449b-5p) on the proliferation, apoptosis and radiation sensitivity of cervical cancer cells.@*Methods@#(1) HeLa cells of cervical cancer cell line were cultured. HeLa cells were irradiated with X-ray at different doses (0, 2, 4, 6, 8 Gy, respectively), then the expression level of CASC19 mRNA and miR-449b-5p were detected by real-time quantitative PCR. (2) HeLa cell proliferation, apoptosis, radiation sensitivity (expressed as a survival fraction) and its related protein expression included cyclin D1, cleaved-caspase-3, and histone variant H2AX (γ-H2AX) were examined after different treatment including silencing CASC19 expression, over-expressing miR-449b-5p, down-regulating miR-449b-5p and silencing CASC19 expression. (3) The dual luciferase reporter gene experiment and real-time quantitative PCR technology were used to verify the targeting relationship between CASC19 and miR-449b-5p.@*Results@#(1) With the increase of X-ray irradiation different dose (0, 2, 4, 6, 8 Gy), the expression level of CASC19 mRNA in HeLa cells gradually increased (F=502.681, P=0.000), and the expression level of miR-449b-5p gradually decreased (F=202.936, P=0.000).(2) After silencing CASC19 expression or over-expressing miR-449b-5p, the survival rate of HeLa cells was significantly reduced (P<0.05), the apoptosis rate was significantly increased (P<0.05), the survival fraction was significantly reduced (P<0.05), the expression level of cyclin D1 protein was significantly reduced (P<0.05), and the expression levels of cleaved-caspase-3 and γ-H2AX protein were significantly increased (P<0.05). After down-regulating miR-449b-5p and silencing CASC19 expression, the survival rate of HeLa cells was significantly reduced (P<0.05), the apoptosis rate was significantly increased (P<0.05), the survival fraction was significantly reduced (P<0.05), the expression levels of cyclin D1 and γ-H2AX protein were significantly increased (P<0.05), and the expression level of cleaved-caspase-3 was significantly decreased (P<0.05). (3) Over expression of miR-449b-5p could significantly reduce the luciferase activity of CASC19 wild type (1.00±0.09 versus 0.37±0.05, P<0.01), but there were no significant effect on the luciferase activity of CASC19 mutant type (0.92±0.07 versus 0.94±0.05, P>0.05). After the expression of CASC19 was silenced, the expression level of miR-449b-5p in HeLa cells increased significantly (1.00±0.12 versus 4.84±0.49, P<0.05). After overexpression of CASC19, the expression level of miR-449b-5p in HeLa cells was significantly reduced (1.00±0.09 versus 0.38±0.04, P<0.05).@*Conclusion@#CASC19 in HeLa cells negatively regulates the expression of miR-449b-5p, and down-regulating the expression of miR-449b-5p could partially reverse the effects of silencing CASC19 on HeLa cell proliferation, apoptosis and radiation sensitivity.

Establishment of a dual-fluorescence-traced lung cancer subcutaneous transplantation model in nude mice / 中华肿瘤杂志

Objective@#To establish a nude mouse model of subcutaneous lung cancer using dual fluorescence reporting genes of luciferase (Luc) and near-infrared fluorescent protein (iRFP).@*Methods@#The Luc and iRFP expressed lentiviral vector was constructed by Gateway method. After verified by sequencing, the lentivirus particle was prepared and infected into lung cancer A549 cells. Successfully infected A549 (mA549) cells were selected by puromycin and amplified. The expression of Luc and iRFP were observed under fluorescence microscope, and the expression of c-Met protein on the cell surface was detected by immunofluorescence. Twelve female nude mice were randomly divided into 2 groups, 6 in each group. A549 and mA549 cells were inoculated subcutaneously into the right forelimb of nude mice. The growth and fluorescence expression of the tumor were observed by in vivo imaging. The tumor formation was evaluated by hematoxylin-eosin (HE) staining and immunohistochemistry.@*Results@#The Luc and iRFP stably expressed mA549 cell line was successfully constructed. The expressions of iRFP and Luc in mA549 cells were observed under fluorescence microscope. The results of immunofluorescence showed that c-Met protein expressed in both A549 cells and mA549 cells. The growth period of mA549 xenograft in nude mice was moderate and the tumorigenesis rate was 100%. The growth trend of mA549 cells in vivo was not significantly different from that of A549 cells (P>0.05). HE staining and immunohistochemistry results showed that the tumor issues displayed typical histopathological features of tumor. Immunohistochemistry results showed that both A549 and mA549 tumors expressed c-Met protein.@*Conclusion@#A stable, real-time monitoring model of iRFP-Luc-A549 lung cancer cell xenograft in nude mice was successfully constructed.

Long-term survival outcome and failure pattern after intensity-modulated radiotherapy for nasopharyngeal carcinoma / 中华放射肿瘤学杂志

Objective To analyze the 10-year survival outcome and failure patterns for patients with nasopharyngeal carcinoma (NPC) after intensity-modulated radiotherapy (IMRT),aiming to provide reference for optimized treatment for NPC.Methods Clinical data of 866 patients with NPC receiving IMRT from January 2001 to December 2008 were retrospectively analyzed.Survival analysis was performed using the Kaplan-Meier estimator.Univariate analysis was carried out by log-rank test and multivariate analysis was performed using Cox proportional hazards model.Results The median follow-up time was 132 months.The 10-year local recurrence-free survival (LRFS),distant metastasis-free survival (DMFS),progression-free survival (PFS) and disease specific survival (DSS) were 92.0％,83.4％,75.7％ and 78.6％,respectively.A total of 210 patients died including 124 patients (59.0％) from distant metastasis,which was the primary cause of death,and 47 (22.3％) from local regional recurrence.Independent negative factors of DSS included age＞50 years (P=0.00),LDH ≥ 245 IU/L (P=0.00),Hb＜ 120 g/L (P=0.01),T2-T4 staging (P=0.00),N1-N3 staging (P=0.00) and GTV-nx＞20 cm3(P=0.00).The 10-year LRFS,DMFS and DSS of stage Ⅱ NPC patients did not significantly differ after IMRT alone and chemoradiotherapy (P=0.83,0.22,0.23).For patients with stage Ⅲ NPC,the 10-year LRFS and DSS in the chemoradiotherapy arm were significantly higher than those in the IMRT alone (P=0.01,0.01),whereas no statistical significance was observed in the DMFS between two groups (P=0.14).The overall survival of stage Ⅳa+Ⅳb NPC patients is relatively poor.Conclusions IMRT can improve the long-term survival of NPC patients.Distant metastasis is the primary failure pattern.Patients with stage Ⅰ-Ⅱ NPC can obtain satisfactory survival outcomes after IMRT alone.The addition of chemotherapy can further enhance the LRFS and DSS of stage Ⅲ NPC patients.However,the optimal therapeutic strategy remains to be urgently investigated for stage a+ Ⅳb NPC patients.

Research progress of oral mucositis during the treatment of tumor / 中华放射肿瘤学杂志

During the treatment of tumor,especially in head and neck cancer,oral mucositis is one of the common complications. The incidence of oral mucositis have relations with chemotherapy,targeted therapy,radiotherapy dose,radiotherapy technology and risk factors of patient. Severe oral mucositis may bring about treatment interrupted,decrease of tumor control rate,affect quality of life and so on. In general, what is very important during the treatment of tumor is to explore the prevention and treatment of oral mucositis.

Effect of evodiamine on the proliferation and radiosensitivity of endometrial carcinoma cells / 中华放射医学与防护杂志

Objective To investigate the effect of evodiamine on the proliferation and sensitivity of endometrial cancer cells to irradiation.Methods After administration of evodiamine,cell proliferations of human endometrial carcinoma cell lines of Ishikawa,HEC-1A,AN3CA were detected by MTT and the half maximal inhibitory concentration (IC50) of drug was calculated.The cell lines most sensitive to drug were screened for further experiment and administered with evodiamine (IC50) and 8 Gy irradiation.Then,cell apoptosis was detected by flow cytometry,the levels of Cleaved Caspase-3,p38 and p-p38 were measured by Western blot,and the level of intracellular ROS was detected by a ROS kit.Cell clone survival was also detected to evaluate cell radiosensitivity.Results 1,2,4,6 and 8 μmol/L evodiamine could inhibit the proliferation of the cell line of Ishikawa,HEC-1A,and AN3CA with IC50 of(8.32 ± 0.95),(3.98 ± 0.84) and (4.78 ± 0.64) μmol/L,respectively.Compared with radiation alone,after radiation in combination with 4 μmol/L evodiamine,the apoptosis rate of HEC-1A cells was increased from (45.54 ±4.25)％ to (65.87 ±2.93)％ (t =11.010,P ＜0.05) and cell viability decreased from (41.84±4.18)％ to (33.27 ± 3.52)％ (t =7.484,P ＜0.05),and the levels of ROS,Cleaved Caspase-3 and p-p38 were also enhanced.In addition,the sensitivity ratio of evodiamine for HEC-1A cells was calculated to be 1.628.Conclusions Evodiamine could inhibit the proliferation,promote apoptosis and enhance the radiosensitivity of endometrial carcinoma cells,in which the intracellular ROS and p38 signaling pathway may be involved.

The basic work status of nurse administrators in Harbin comprehensive hospital / 中国实用护理杂志

Objective Through the investigation of the status quo of the nursing staff in the general hospitals in Harbin, the present situation of the nursing managers in Harbin is evaluated, which provides the basis for the medical staff management, continuing education and training direction of Harbin medical institutions. Methods The social basic demographic situation, training, work content, work pressure and strength of 150 nursing managers in the Harbin general hospital were investigated by self-designed questionnaire. Survey data using EpiData3.1 and Excel 2010 software to establish a database, input, mapping, analysis. Results The nursing management personnel basic quality was good. Generally included department based on the actual work of the complete personnel division of labor and scheduling, responsible for items, equipment, drugs, ward management, responsible for other work assigned by department, hospital care tasks. 85％(127/150) of the staff undertook the nursing management of the department and undertook clinical nursing work;62％(93/150) of nursing managers believed that work was at full load. Most care managers thought the work pressure was higher. The stress source was mainly from the tension, responsibility and workload of the patient. The training of nursing managers focused on nursing skills and professional knowledge. The training form was mainly for expert lectures, intensive teaching and practical training. There was an urgent need to strengthen training on risk management, stress management, psychology, and management knowledge. Conclusions The basic quality of nursing management personnel in Harbin comprehensive hospital is good, but there is still a gap between the requirements of the international nurses' core competence, hospital managers should attach importance to constructing systematic training system for nursing management personnel, and strengthen the construction and cultivation of core competence of nursing management.

Effect of Xinmupei combined with psychological intervention on the treatment of maternal postpartum maternal mellitus and its effect on quality of life / 中国生化药物杂志

Objective To study the clinical effects of postpartum haemorrhage and the clinical effects of psychosocial intervention. Methods Choose 88 cases, patients treated in our hospital, it can be divided into two groups, respectively using oxytocin combined conventional nursing mother, yan pei combined psychological intervention treatment, analysis its therapeutic effect. Results The curative effect of observation group of patients, postpartum haemorrhage amount and quality of life, each index significantly better than the control group, the changes of its data through comparison between groups, differences, statistically significant(P<0.05). Conclusion The patients with postpartum haemorrhage, with the treatment of the psychological intervention and the treatment of the psychological intervention, the effect is good.

Effect of berberine on radiosensitivity of cervical cancer cells / 中华放射医学与防护杂志

Objective To investigate the effect of berberine on the radiosensitivity of cervical cancer cells.Methods 5,10,15,20 μmol/L of berberine were used to treat cervical cancer cell lines of Siha,HeLa,Caski.DMSO was applied as control of drug treatment.Cell proliferation was detected by the CCK-8 method,and then the half inhibitory concentration of berberine was calculated.Cell apoptosis and cell cycle distribution were detected by flow cytometry.Protein expressions of Cleaved Caspase-3,Cyclin B1,CDK1,STAT3 and p-STAT3 were detected by Western blot.Cervical cancer cells of Siha were treated by berberine with a half inhibitory concentration for 24 h and then irradiated with 0,2,4,6,8 Gy of X-rays.Cell clone assay was used to detect cell survival.Results Berberine could inhibit the growth of cervical cancer cells with a half inhibition concentration of(16.84 ± 3.52),(23.54 ± 8.67),(21.86 ± 6.35)μmol/L for Siha,Caski,and HeLa cells,respectively.The berberine at 17 μmol/L could induce apoptosis (t =56.847,P ＜ 0.01) and G2/M phase arrest (t =47.251,P ＜ 0.01) in Siha cells,which also inhibited the expressions of Cyclin B1,CDK1 and p-STAT3 and promoted the expression of cleaved Caspase-3,but did not influence the expression of STAT3 in cervical cancer cells.Treatment of cells with 17 μmol/L berberine increased the radiosensitivity of cervical cancer cells with a sensitivity enhancement ratio of 1.55.Conclusions Berberine can inhibit cell proliferation,promote apoptosis,block cell cycle,and increase radiosensitivity of cervical cancer cells.

Effects of Neuromuscular Electric Stimulation on Salivation in Children with Cerebral Plasy / 中国康复理论与实践

@#ObjectiveTo investigate the effect of neuromuscular electrical stimulation (NMES) on salivated children with cerebral palsy. Methods43 salivated children with cerebral palsy were divided into NMES group (n=22) and control group (n=21). Both groups accepted the same routine treatment, while the NMES group was given the NMES in addition. All the children were evaluated before and 8 weeks after treatment with teacher drooling sizing (TDS). ResultsThe TDS of NMES group was significantly different with that of the control group (P<0.05) after treatment. ConclusionNMES can decrease the salivation in children with cerebral palsy, and promote their swallowing function.

Association of C-159T polymorphism in promoter region of CD14 with diabetic nephropathy / 中华内分泌代谢杂志

lymorphism of CD14 gene is a risk factor for diabetic nephropathy.

Application of Thin Layer Chromatograph-Fluorescent Method in Quality Control of Herbal Preparations / 中草药

A thin layer chromatograph-fluorescent method was used to assay content of scopoletin in Erycibe obtusi folia Benth.. The method showed that it not only can minimize analytical errors in thin layer scan and column contamination in HPLC,but also eliminated mutual interference of components in the preparation. It provides a good assay technique for quality control of hebal preparations. The method was carried out on thin layer plates of silica gel H(40?)with benzene-ether (1. 1: 1 )as the developer,at an excitation spectrum of 347nm,fluorescence spectrum of 420nm and a temperture of 25??1℃.The method showed good linearity(r= 0. 9998, n = 5)in the range of 0.08~0. 40?g/?l of scopoletin and the average recovery was 98. 52 % ~ 102. 67 % with RSD

Fuzitine: A New Aporphine Alkaloid Isolated from Aconitum carmichaeli Debx / 第二军医大学学报

A new aporphine alkaloid, named fuzitine, was isolated from the tuber of Aconitum carmichaeli Debx. Its chemical structure was identified by the chemical, UV, IR, MS and NMR spectra analysis.

A New Cardiac Principle Isolated from Jiangyou Fuzi (Aconitum carmichaeli Debx.) / 第二军医大学学报

Uracil (I) (2,4-Diketo-pyrimidine) was isolated from the radix aconiti collected from Jiangyou region of Sichuan Province.The chemical structure of this principle was determined by elemental analysis,IR,UV,MS,'H and 13C-NMR spectral data. The experiments were made to study the effect of uracil (I) on the cardiac contractile force and beating rate of the isolated toad hearts in comparison with uracil (II) (artificial synthesis). The results indicated that the 5?mol/L of uracil (I) and uracil (II) both had the effect of increasing the amplitude of myocardial contraction (P0.05) at 3 and 5 min. When the concentration was increased to 10 and 20?mol/L, the amplitudes of myocardial contraction were more incremental and 3 min later,the estimated value of uracil (I) and uracil (II) to increase the amplitude of myocardial contraction by 50% approached to 4.17 and 4.68, respectively. As described above, uracil (I) is a new cardiotonic in Jiangyou Fuzi.