Objective To study the value of bone marrow MR imaging in mornitoring chronic myeloid leukemia(CML).Methods 12 cases of CML underwent twice MR examination of pelvis and femur respectively at different time.MRI appearances were compared with the results of morphology and blood routine at the same time.The relation between MR findings and course was analysed.Results MR appearances of bone marrow were changed with the progression of disease.The condition of patients was improved in 2 cases and worse in 4 cases,the signal intensity of bone marrrow were increased and decreased respectively.The signal intensity of bone marrow showed no change in 6 patients whose condition kept stable.Conclusion The characteristics of MRI can reflect the progression of CML,it is of important value in mornitoring this disease.

Objective:To evaluate the effect of Nutlin-3,a MDM2 antagonist,on the pyroptosis in SMMC-7721 cells.Methods: The expression of actived caspase-1(p20) and IL-1β was detected using Western blot analysis.Pyroptosis was investigated by a standard lactate dehydrogenase release assay(LDH).IL-1β content in the cell culture supernatant was quantified by ELISA.Results: Nutlin-3 up-regulated the expression level of actived caspase-1 and IL-1β in SMMC-7721 cells.Meanwhile,Nutlin-3 increased significantly the content of LDH and IL-1β in the cell culture supernatant(P<0.05).Conclusion: Nutlin-3 activated pro-caspase-1,promoted pyroptosis and IL-1β release in SMMC-7721 cells.

Objeetive To explore the analgesic and hemostatic effect of lidocaine gelatin fiber used after endoscopic sinus surgery.Methods 86 patients underwent endoscopic sinus surgery were randomly divided into A and B groups.In A group,20％ lidocaine gelatin fiber and expansion hemostatic sponge was packed into 43 patients' nasalcavity,while in B group,only expansion hemostatic sponge was packed.Nasal bleeding in patients while packed material within 24 hours and when extracted the material were observed.The analgesic effects were evaluated after packing material 1,6,12,and 24 hours after surgery.Results In A group,the amount of bleeding was (16.30 ± 5.19)ml,while the amount was(32.30 ± 12.09) ml in group B.Statistical analysis showed significant difference(t =7.97,P ＜0.05).There were no significant differences in nasal bleeding when extracted the stuffing and in analgesic efficiency 1hour after surgery.But the analgesic efficiency of lidocaine gelatin fiber was 20％,which was better than expansion hemostatic sponge 6 ～24 hours after surgery (t =27.163,29.091,16.241,all P ＜ 0.05).Conclusion Lidocaine gelatin fiber not only had better hemostasis,but also had better analgesia than expansion hemostatic sponge after endoscopic sinus surgery.

Objective To assess the clinical significance of QT interval dispersion (QTd) in the diagnosis and prognosis of early heart damage in patients with severe acute pancreatitis.Methods All patients received complete ECG,There were 58 patients with SAP (the SAP group) and 189 patients with mild acute pancreatitis (the control group).These patients were analyzed retrospectively and 60 normal people were used as the healthy control group.The QT interval were measured respectively in serial 12-lead electrocardiogram and QTd,QTcd were calculated.Result QTd and QTcd were significantly longer in the SAP group than in the MAP group and in the healthy control group (P＜0.01).QTd,QTcd were not remarkably extended in the MAP group than in the healthy control group (P＞0.05).Conclusions QTd and QTcd have clinical values to diagnose and to predict early heart damage in patients with SAP.They might be useful in evaluating the condition of cardiac function in patients with SAP.

Objective To explore the association between the infection rate of Helicobacter pylori (Hp) and intake frequency of capsicum in dietary pattern. Methods A total of 914 health check-up participants were recruited from Tianjin Medical University General Hospital (male: 510,female:404). All participants were asked about the intake frequency of capsicum. Diagnostic criteria of the Hp infection included positive C13 breath test. Results The intake frequency of capsicum was ≥2 times/week, 1 time/week and <1 time/week. The infection rate of Hp was 56.08%, 49.04% and 48.29%. After adjusting for covariates, compared with the≥2 times/week, the odds ratios(95%confidence interval)of intake frequency of capsicum 1 time/week and <1 time/week: the frequency of capsicum intake ≥2 times/week was 1.00 (reference), the frequency of capsicum intake 1 time/week was 0.57(0.33-0.97) and the frequency of capsicum intake<1 time/week was 0.69(0.42-1.14) in men;the frequency of capsicum intake≥2 times/week was 1.00 (reference), the frequency of capsicum intake 1 time/week was 1.01(0.54-1.88), and the frequency of capsicum intake<1 time/week was 0.71(0.41-1.23) in women. Conclusions This study found that food intake frequency of capsicum≥2 times/week was associated with the infection rate of Hp in men. But similar relationship was not observed in women.

Anidulafungin is an effective antifungal medicine, which can inhibit activities of candida in vitro and in vivo. Echinocandin B (ECB) is the key precursor of Anidulafungin, thus the price and market prospect of Anidulafungin is directly due to the fermentation titer of ECB. In this study, Aspergillus nidulans was used for ECB fermentation, and the influence of adding microparticles on ECB fermentation was studied, such as talcum powder, Al2O3, and glass beads. The particle size and concentration were the key factors for mycelium morphology and ECB production, and ECB production could reach 1 262.9 mg/L and 1 344.1 mg/L by adding talcum powder of 20 g/L (d50 = 14.2 μm) and 7 glass beads (6 mm), an increase by 33.2% and 41.7%, respectively. The results indicated that the mycelium morphology of filamentous microorganisms and the product yield of fermentation could be improved by adding microparticles remarkably, and it provide an important method for the fermentative optimization of filamentous microorganisms.
Antifungal Agents ; metabolism ; Aspergillus nidulans ; metabolism ; Echinocandins ; biosynthesis ; Fermentation ; Fungal Proteins ; biosynthesis ; Industrial Microbiology ; methods

Objective To investigate the clinicopathologic characteristics and prognosis of medullary breast carcinoma.Methods We conducted a retrospective analysis on clinical and pathologic data of 166 patients with medullary breast cancer.Results All the patients were female with a median age of 52 years old.The proportion of patients with stage Ⅰ,Ⅱ and Ⅲ disease was 16.9％,68.1％,15.0％,respectively.The Luminal,HER-2 overexpressing and triple-negative subtypes constituted 31.3％,8.4％,and 60.3％,respectively.There was significant difference in regional lymph node status of medullary breast cancer patients with different molecular types (x2 =18.248,P =0.003),but not in tumor size,TNM stage,histological grade,and expression of Ki67 (all P ＞ 0.05).Multivariate survival analysis indicated that TNM stage was an independent predictor in the prognosis of medullary breast cancer (HR =5.664,P =0.001).All the patients were followed up from 15 months to 145 months with a median follow-up time of 108 months.The 5-year survival rate was 91.5％ and the 10-year survival rate was 87.2％.Conclusions The prognosis of medullary breast cancer is favorable.Personalized treatment according to the TNM stage and histopathologic characteristics achieve a favorable prognosis.

Objective To explore the clinicopathological characteristics and prognosis of invasive micropapillary carcinoma of the breast (IMPC),and the distinction between IMPC and invasive ductal carcinoma of the breast (IDC).Methods From February 2004 to November 2013,195 IMPC patients and 420 IDC patients were analyzed retrospectively.Results There were significant differences in mammilla invasion,lymph vessel invasion,orange peel sign,soft tissue encroachment,neoadjuvant chemotherapy,radical mastcctomy,lymph node metastasis,clinical stages,tumor size,lymph node staging,estrogen receptor (ER),progestin receptor (PR),human epidermal growth factor receptor 2 (HER2),molecular subtyping,ratio of radiation,ratio of endocrine therapy,disease-free survival (DFS),overall survival (OS)between the two groups,all P ＜0.05.Patients with IMPC had lower 5-year DFS and OS rates (68.2％ and 73.8％,respectively) than IDC patients (85.7％ and 88.6％,respectively),all P ＜ 0.05.In IMPC patients with positive ER/PR,HER2-negative,smaller tumor volume,less lymph node metastasis,negative nipple invasion,negative lymphatic vessel tumor thrombus,negative orange peel change had higher 5-year DFS and OS rates than those with negative ER/PR,HER2 overexpression,larger tumor volume,more lymph node metastasis,positive nipple invasion,positive lymphatic vessel tumor thrombus,positive orange peel change,all P ＜ 0.05.Besides,the patients with pathologic stage Ⅰ had higher OS than those with stage Ⅲ (P ＜ 0.05).Cox regression analysis found that orange peel change,lymph vessel invasion and HER2 were the independent risk factors for the survival time of patients with IMPC.Conclusions IMPC patients have lower DFS and OS compared with IDC.

Objective To investigate the relationship between white blood cell count (WBC) and the prevalence of simple fatty liver disease (SFL) and nonalcoholic steatohepatitis (NASH). Methods We designed a large scale cross-sectional study in an adult population. Participants were selected from Tianjin Medical University's General Hospital-Health Management Centre. The diagnoses of simple fatty liver disease and nonalcoholic steatohepatitis were based on liver ultrasonography and serum alanine aminotransferase concentration. A total of 37507 subjects (8644 SFL and 2557 NASH) were included in this study. Multiple logistic regression analysis was used to assess whether the quartiles of WBC were associated with the prevalence of simple fatty liver disease and nonalcoholic steatohepatitis. Results After adjusting for potential confounders, the odds ratios (95% confidence interval) of simple fatty liver disease and nonalcoholic steatohepatitis for increasing quartiles of WBC were: simple fatty liver disease, 1.00 (reference), 1.37 (1.24, 1.50), 1.70 (1.55, 1.86) and 2.09 (1.90, 2.29) (P for trend<0.0001);nonalcoholic steatohepatitis, 1.00 (reference), 1.39 (1.16, 1.66), 1.69 (1.43, 1.99) and 2.13 (1.81, 2.50) (P for trend<0.0001). Conclusions This study proves the correlation between WBC and the prevalence of simple fatty liver disease and nonalcoholic steatohepatitis. Further study is needed to clarify whether WBC has a predictive value for the occurrence of nonalcoholic fatty liver disease.

Objective To investigate the changes of QT dispersion and heart rate variability in children with ventricular contraction. Methods 50 healthy children who came for medical examinations at Chengdu Women′s and Children′s Central Hospital from January 2012 to January 2014 were selected as control group. 147 children with ventricular contraction admitted in Pediatric Intracardiac Department of Chengdu Women′s and Children′s Central Hospital from January 2012 to January 2014 were divided them into Benign Group (LownⅠ&LownⅡ) and Malignant Group(LownⅢ, LownⅣA, LownⅣB&LownⅤ) according to the results of Lown classification. Benign Group contained 90 cases while Malignant Group contained 57 cases. Difference in QT dispersion and indices of heart rate variability of the three groups were compared. Results There were no statistically differences between control group and benign group in QT dispersion (P > 0.05). QT dispersion of malignant group was much longer than that of control group and the differences had statistically meaning(P<0.001). SDNN(standard deviation of NN intervals) , SDANN (standard deviation of the averages of RR intervals ), SDNN index (index of standard deviation of the averages of NN intervals), rMSSD(root mean square of successive differences) and PNN50(percentage of successive normal sinus RR intervals>50 ms) of malignant group was much shorter than that of control group and benign group and the differences had statistically meaning (P< 0.01). SDNN, SDANN and SDNN index of benign group was shorter than that of control group and the differences had statistically meaning (P<0.05). Conclusions Heart rate variability of children with malignant ventricular contraction becomes significantly shorter and QT dispersion becomes significantly longer. Detection of QT dispersion and heart rate variability can effectively predict the risky degree of ventricular contraction in children.