Obiective To study the clinic characteristics of young women with breast cancer, and analyse the reason of delayed diagnosis and treatment. Methods A retrospective review was made in 121 cases of young women with breast cancer (age ≤35 years as young group) and 40 cases of breast cancer patients of control group (age≥40 years), who all underwent definitive surgical treatment. Results There were significant differences in the positive rate of invasive tumor and the positive rate of axillary lymph node between the two groups(P

This paper summarized training status of the Master of Nursing Specialist (MNS) at home and abroad,described and analyzed the cultivation program at home and abroad,and discussed the problems about cultivation objective, enrollment, course system, specialty orientation, clinical training model, teaching method, connotation of practical ability, teachers strength, evaluation and assessment in cultivation of MNS in China. Then MNS training program is proposedso as to provide references for the future cultivation program of MNS in China.

The advances of industrial biotechnology highly depend on the development of industrial bioprocess researches. In China, we are facing several challenges because of a huge national industrial fermentation capacity. The industrial bioprocess development experienced several main stages. This work mainly reviews the development of the industrial bioprocess in China during the past 30 or 40 years: including the early stage kinetics model study derived from classical chemical engineering, researching method based on control theory, multiple-parameter analysis techniques of on-line measuring instruments and techniques, and multi-scale analysis theory, and also solid state fermentation techniques and fermenters. In addition, the cutting edge of bioprocess engineering was also addressed.
Bioengineering ; history ; Bioreactors ; Biotechnology ; Chemical Engineering ; China ; Fermentation ; History, 20th Century ; History, 21st Century

Filamentous fungi are widely used in industrial fermentation. Particular fungal morphology acts as a critical index for a successful fermentation. To break the bottleneck of morphological analysis, we have developed a reliable method for fungal morphological analysis. By this method, we can prepare hundreds of pellet samples simultaneously and obtain quantitative morphological information at large scale quickly. This method can largely increase the accuracy and reliability of morphological analysis result. Based on that, the studies of Aspergillus niger morphology under different oxygen supply conditions and shear rate conditions were carried out. As a result, the morphological responding patterns of A. niger morphology to these conditions were quantitatively demonstrated, which laid a solid foundation for the further scale-up.
Aspergillus niger ; cytology ; Fermentation ; Industrial Microbiology ; Reproducibility of Results

AIM:To investigate the construction of oligonucleotide microarray specialized for pancreatic adenocarcinoma-associated genes and its preliminary application of detecting differential expressed genes in pancreatic cancer.METHODS:Pancreatic cancer related genes were purposely selected,and oligonucleotide microarray was prepared by spotting oligonucleotide probes on glass slides coated with APS-PDC.Labeled cDNA targets for hybridizations were synthesized by reverse transcription from total RNA in the presence of Cy5-dCTP and Cy3-dCTP,respectively.Hybridized microarray was scanned by Agilent laser scanner,and the aquired image was analyzed by Imagene3.0 software.The intensity ratios of Cy3 and Cy5 were calculated.To confirm the expression profiles of these genes,quantitative reverse transcription-PCR (QRT-PCR) was carried out for CDC25B and TUSC3 genes,and β-actin gene was taken as internal control.The product of PCR was quantitated by comparative Ct method.RESULTS:The signal of microarray hybridization was clear,and the images had a lower background and higher signal-noise ratio.In comparison with normal pancreas,twenty -four differentially expressed genes were identified which included seventeen up-regulated and seven down-regulated genes.The results of QRT-PCR demonstrated that the expressions of CDC25B and TUSC3 in pancreatic cancer were up-regulated and down-regulated respectively,which is consistent with microarray results.CONCLUSION:The oligonucleotide microarray specialized for pancreatic cancer is desirable for its specialty and sensitivity,which can simultaneously and parallelly detect multiple pancreatic cancer-associated genes.

Objective:To observe the levels of serum endothelin(ET),nitric oxide(NO),tumor necrosis factor-α(TNF-α)and interleukin-6(IL-6)in prehypertension and hypertension patients.Methods:Three groups were recruited from 3050 subjects of regular health checkup in Tangshan Railway Hospital from June to September,2007. Prehypertension (PH) group: n=106,Essential hypertension (EH) group: n=91,and Normotensive (NT) control group: n=98.The levels of ET,TNF-α,IL-6 and NO were compared by radioimmunoassay and biochemical tests. Results: ①Compared with NT group,body mass index (BMI) and serum lipids (TC,TG,LDL-C) were significantly increased in PH and EH groups (P<0.05),high-density lipoprotein cholesterol (HDL-C)was decreased in EH groups (1.59±0.15 vs. 1.77±0.19,P<0.05). ②Compared with NT group,ET,IL-6,TNF-α were increased in PH and EH groups (P<0.05).NO was increased in PH group (6.55±0.94 vs. 5.87±0.80,P<0.05) while decreased in EH group (5.28±0.81 vs. 5.87±0.80,P<0.05). ③Logistic analysis indicated that BMI,ET,NO,TNF-α and IL-6 were related to the hypertension. Conclusion: ET,NO,TNF-α,IL-6 were elevated in prehypertension patients and those might be used to predict the risk of hypertension.

Objective To explore the clinico-pathological characteristics of primary breast lymphoma(PBL).Methods The clinical data of 36 cases of PBL were analyzed retrospectively.Results Among the 36 cases of PBL,16 patients presented with stage Ⅰa disease,14 patients with stage IIa disease,2 patients with stageⅡb disease,and 4 patients with stage Ⅳ.All of the patients underwent surgery and chemotherapy,and 20 cases had radiotherapy.Thirty three patients(91.7%) were followed up for 3-193 months,during which time,12 patients died,including 2 patients died of brain metastases,five patients died of bone metastasis,and five patients died of diffuse hepatic and pulmonary metastasis.In the 21 surviving patients,the survival time was 3～192 months,and the median survival time was 43.5 months.The overall 3-and 5-year survival rate was 70.1% and 49.0%,respectively.Conclusions Most PBL are NHL.PBL is diagnosed basically by methods of pathology and immunohistochemistry,and operation combined with chemotherapy and/or radiotherapy is the best treatment method.

Objective To investigate the expressions of Smad3 and Smad7 in patients with ulcerative colitis(UC)and their relation with clinicopathology.Methods The expressions of Smad3 and Smad7 were measured by immunohistochemistry with SABC method in 60 UC specimens and 16 normal colonic tissues.The association of expressions of Smad3 and Smad7 proteins with clinical staging,lesion extent and pathologic grading were retrospectively analyzed.Results The expression of Smad3 was significantly lower in UC patients than in normal controls(P＜0.05),however,there was no relation between Smad3 expression and lesion extent(P＞0.05).There was a negative correlation between the expression of Smad3 and histological grade(r=-0.283,P＜0.05).The expression of Smad7 was significantly higher in UC patients than in normal controls,and its expression in active disease was higher than that in clinical remission(Z=2.097,P=0.036).There was a positive correlation between the expression of Smad7 and histological grade(r_s=0.453,P=0.000),and no relation between Smad7 expression and lesion extent(r_s=0.066,P=0.614).The statistical analysis showed a negative correlation between Smad3 expression and Smad7 expression(r=-0.420,P＜0.05).Conclusion The abnormal expressions of Smad3 and Smad7 are correlated with pathogenesis of UC.Furthermore.Smad7 may serve as marker for disease activity of UC.

, which will provide enough seed cells for peripheral nerve tissus engineering research.

To study the use of data mining techniques in analyzing the syndrome discipline of generalized anxiety disorder (GAD).