Cluster Analysis ; Fuzzy Logic ; Humans ; Mathematics ; Medicine, Chinese Traditional

This study was aimed to explore effects of Zi-He-Che (ZHC) on estradiol (E2), follicle stimulating hor-mone (FSH), luteinizing hormone (LH) among perimenopausal rat model. The 4-month-old young female SD rats with vaginal smear of normal estrous cycle and 18-month-old aged female SD rats with vaginal smear of no estrous cycle were selected as the normal control group. The 11- and 12-month-old female SD menopausal rats with vaginal smear of estrous cycle disorder were selected and randomly divided into the model group, treatment group and posi-tive control group. The normal control group and the model group were given physiological saline. And the treatment group was given ZHC. The positive control group was given prescription from the textbook. Observation was given on effects of ZHC on E2, LH and FSH among perimenopausal rat model. The results showed that compared with the young group, the level of E2 in the old and model group was significantly decreased (P<0.01), the level of FSH and LH were significantly increased (P<0.01). Compared with the model group, the level of E2 in the treatment group and positive control group was significantly increased (P<0.01), the level of FSH and LH were significantly decreased (P<0.01). It was concluded that both ZHC and prescription from the textbook were able to reduce FSH and LH levels, and increase the estrogen level among perimenopausal rats.

Objective To investigate healthcare-associated infection(HAI)in patients in a cancer hospital,provide reference for controlling HAI in cancer patients,and guide rational use of antimicrobial agents.Methods Clinical data of patients in a cancer hospital between August 2006 and July 2012 were analyzed retrospectively.Results The incidence of HAI case was 1 .53% (2 060/134 389),and annual incidence showed a downward trend.The main in-fection site was lower respiratory tract (46.46%,n=957),followed by bloodstream (15.63%,n=322),abdominal and pelvic (14.03%,n=289).The main pathogens were Pseudomonas aeruginosa (16.16%,n=350),Staphylo-coccus aureus (9.97%,n=216),Klebsiella pneumoniae (9.79%,n=212),Escherichia coli (9.65%,n=209), and Candida albicans (6.51 %,n=141 ).Gram-negative bacilli,including Klebsiella pneumoniae and Escherichia coli ,were sensitive to carbapenems and β-lactamase inhibitors.Conclusion Lower respiratory tract is the major HAI site in patients with cancer,and gram-negative bacteria are the main pathogens.Carbapenems andβ-lactamase inhibitors are recommended for the empirical treatment of HAI in cancer patients.

A 29-year-old woman was admitted to the Department of Rheumatology,Peking Union Medical College Hospital due to intermittent rashes,fever and headache.Palpable purpura were symmetrically distributed on the extremities and trunk.Other manifestations included headache with nausea and vomiting.Elevated white blood cell (WBC) count,platelet (PLT) count,erythrocyte sedimentation rate (ESR) and C-reactive protein were the main laboratory findings.Antinuclear antibodies and antineutrophil cytoplasmic antibodies were negative.Examination of the cerebrospinal fluid (CSF) revealed high intracranial pressure,while routine cytology and biochemical tests of CSF were normal.Head MRI scan and PET-CT did not detect remarkable findings.A diagnosis of systemic vasculitis was confirmed by the biopsy of skin lesion which showed inflammatory infiltration of the muscular vessel wall.Combination therapy of corticosteroids and cyclophosphamide lead to a rapid improvement in clinical symptoms and laboratory parameters.The patient was in stable remission till 6 month follow-up.

Objective To construct a fusion protein that used for treatment of resistance and palindromia in leukemia and studied its biological activity. Methods IL-3 and LP gene fragments were amplified by PCR. After enzymatic digestion and T4 ligation, the fusion gene was cloned into expression vector pAYZ. The product was purified by exchange chromatography and anti-Etag affinity chromatography. IL3-G4SLP fusion protein was analyzed by SDS-PAGE and Western blot. Protein biological activity was detected by FACS. Results The fusion protein was expressed as soluble protein by E.Coli 16C9. The protein expression level was about 1 mg/L, its purity was over 95 %, and the expression level was about 1 mg/L. The fusion protein can combined specificely with CD123 on leukemia stem cells. Conclusion Fusion protein IL-3-G4S-LP can target on leukemia stem cells and maybe as a potential drug used for treatment of resistance and palindromia in leukemia.

Objective To retrospectively analyze and conclude the characteristics of imaging appearances of solid psedopapillary tumor of pancreas.Methods Among 7 cases with pathologically proved solid psedopapillary tumor of pancreas,6 cases underwent CT examinations of upper abdomen preoperatively,and the rest One had MRI examination.The mean age of these 7 cases(all female)was 30.7 years(range,14—44 years).Results The tumors were usually quite large in the largest diameter ranged from 2.8 to 15.9cm(mean largest diameter,7.9 cm);Tumors were all well demarcated,and 5 of them were of capsule on CT or MR imaging.All tumors were well-encapsulated on pathologic specimens, except for the capsule of 1 tumor was partially invaded;In 6 cases underwent CT examination,scattered, punctate and linear calcification were noted in the capsule of 2 tumors and the rim of another one;Except for 1 tumor was almost solid,the other 6 tumors contained both solid and cystic components;Scattered sheets of high attenuation shown in the cystic or solid parts on CT imaging in several cases and the high signal intensity on T_1-weighted MR imaging signified the possibility of bleeding in tumors,which then was testified by pathologic evaluation.Conclusion The solid psedopapillary tumor of pancreas has comparatively characteristic clinical and imaging features.

ObjectiveTo analyze the relationship between pancreatic cancer (PC) and diabetes mellitus (DM),and the clinical and pathological features of pancreatic cancer in patients with DM.MethodsFrom January,2008 to December,2010,151 patients with PC and 195 comparable patients without PC were enrolled in a case-control study to analyze the relationship between PC and DM.ResultsThe OR was 5.91 (95％ CI 3.03-8.00,P＜0.05) in PC patients with DM for less than 2 years,and 1.308 (95％ CI 0.37-4.60,P＞0.05) in patients with DM for 2 to 5 years,and 1.16(95％ CI 0.44-3.19,P＞0.05) for patients with DM for more than 5 years.There was no significant difference between PC patients with and without DM in gender,age,body-mass index (BMD,obstructive jaundice,tumour location and tumour metastases (P＞0.05).ConclusionsThere was a significant correlation between PC and DM.De novo DM may be a clinical manifestation in patients with PC.PC patients with concurrent DM have no particular clinical and pathological features.

Altitude ; Animals ; Arvicolinae ; Gene Expression ; Hypoxia ; Rats ; Tumor Suppressor Protein p53 ; genetics

ObjectiveTo study the effect of different renal functions on the prognosis of elderly patients with coronary neart disease (CHD). MethodsAll 383 patients with CHD were divided into elderly group and non-elderly group. Then patients in the elderly group were assigned to 4 groups according to the quartile of the estimated glomerular filtration rate (eGFR): GFR1 group (eGFR:1.73 m-2). All patients were followed up for 2 years, and the cumulative death rate of cardiovascular diseases and the relative risk for cardiovascular death were analyzed. Results(1)The cumulative death rate of cardiovascular diseases in elderly group was higher than that in non-elderly group (9.4vs. 1.3%, P=0. 019). (2)The cumulative death rate of cardiovascular diseases in GFR1,GFR2,GFR3 group were 6.8% ,6.3% ,4.6%, respectively, and there were no statistical differences among the three groups (P>0. 05). The cumulative death rate of cardiovascular diseases was 19.4% in GFR4 group, which was higher than that in other three groups (19.4% vs. 6.8%, P=0.038;19.4% vs. 6.3%, P=0.025 ;19.4% vs. 4.6%, P=0.009) . (3)Multivariate regression analysis revealed that eGFR was an independent prognosis factor for elderly patients with CHD, and the hazard ratio for cardiovascular death was 0. 965(95% CI: 0. 946～0. 985, P=0. 001). ConclusionseGFR is an important predictor for cardiovascular death in elderly patients with CHD.

Abstracting and Indexing as Topic ; Neoplasms ; Periodicals as Topic