BIOSIS previews is the well-known comprehensive index to life sciences and biomedical research. It is necessary for the researchers to know the index and use it to search the literature of microbiology . This article is the overview of BIOSIS previews including it's organization structure, features and using guide.

The clinical and pathological data of 6 patients with urahcal adenocar,cinoma of the bladder admitted in Beijing Luhe Hospital from 1996 to 2016 were analyzed and relevant literature was reviewed.Urachal carcinoma accounted for 0.66% of the bladder cancers admitted at the same period (6/906) and 6/16 of the bladder adenocarcinomas.Painless hematuria was the most common symptom.One patient had extensive metastasis as shown in biopsy and died 6 month after the diagnosis.Two patients underwent partial excision of bladder with no tumor recurrence.One patient underwent partial cystectomy followed by chemotherapy and radiotherapy, recurrence occurred one year later and he then received radical cystectomy.Another 2 patients underwent laparoscopic cystectomy and en bloc resection of umbilical ligament and umbilicus, and no recurrence was found in the follow-up for 6 years and 15 months, respectively.Pathological and immunohistochemistry are essential for the diagnosis of urachal adenocarcinoma.As it is not sensitive to radiotherapy or chemotherapy,surgery is the preferred treatment for patients with early stage diseases.Individual anticancer therapy may be the trend of treatment.

Adult ; Brachiocephalic Trunk ; injuries ; Emergency Treatment ; Humans ; Male ; Middle Aged ; Rupture ; Tracheostomy ; adverse effects ; Young Adult

Adult ; Female ; Humans ; Immunohistochemistry ; methods ; Male ; Meningeal Neoplasms ; immunology ; ultrastructure ; Meningioma ; immunology ; ultrastructure ; Microscopy, Electron ; Middle Aged ; Paraganglioma ; physiopathology

Objective To explore the clinical efficacy and safety of transcatheter absolute ethanol injection treatment on varicose veins of lower extremity.Methods twenty-there patients with 25 varicose veins of lower extremity were treated by puncture of great saphenous vein above 1—2 cm of complicated inner ankle,perforating catheter to the point below the 3—4 cm of the conjunction of great saphenous vein and Femoral vein and pressing the conjunction of these two veins.Under the monitor of DSA,inject the absolute ethenal slowly while retrieve the catheter little by little(one limb with varicose veins injected total volume 15—20 ml),in the mean time,using contrast agent to monitor the level of embolism until the formation of total embolism in the all great saphenous veins.Results All the cases were retrospectively followed up with CDFI examination after 3—12 months of the surgery,No blood flow were seen in the 25 embolismic great saphenous vein.Clinical symptom were alleviated obviously after 2—3 weeks of treatment;varicose veins were collapse after 3 to 7 days.Two eases of leg ulceration were healed after 4 to 6 weeks of operation.20 limbs were found mild swelling in the 2 day after the surgery.However,all the cases were disappeared after 1 to 2 weeks;4 treated limbs developed delayed paresthesia in the 3 day after the surgery,and recovered totally in the 2 weeks.No complications of deep vein thrombosis,lung thrombosis etc al,were found after operation.Conclusions Using transcatheter injection of absolute ethanol to treat varicose veins of lower extremity has the advantage of less invasion,more safety and low appearance of complications.The short term efficacy is solid while the long term effect needs further evaluation.

Objective To analyze the clinical characteristics and factors influencing adverse treatment outcomes in elderly patients with multidrug-resistant pulmonary tuberculosis (MDR-TB) to guide the clinical diagnosis and treatment of elderly MDR-TB patients. Methods Clinical data of elderly patients with multidrug-resistant pulmonary tuberculosis initially treated at Beijing Chest Hospital from 2008 to 2023 were retrospectively collected. Complications/comorbidities, adverse drug reactions, drug resistance during initial treatment, and retreatment were statistically described. Factors influencing adverse treatment outcomes were analyzed using the chi-square test and logistic regression analysis. Results A total of 238 elderly patients with MDR-TB were collected, of which 152 (63.9%) had adverse drug reactions, 184 (77.3%) were retreated MDR-TB, 27 (11.3%) were extensively drug-resistant tuberculosis (XDR-TB), 41 were cured, 6 completed treatment, 39 failed treatment, 6 died, 107 lost to follow-up, 31 could not be evaluated, 8 did not finish treatment, and the treatment success rate was 20.4% (47/230). The adverse outcome of treatment accounted for 79.6% (183/230). Univariate analysis showed that differences in age groups, the occurrence of drug adverse reactions, and patient sources had a statistically significant impact on treatment outcomes (P<0.05). Logistic regression analysis was performed using good and adverse treatment outcomes as dependent variables for the three factors, which showed that being aged 70 and above, the occurrence of drug adverse reactions during treatment, and being a non-local patient were factors influencing adverse treatment outcomes [OR (95%CI): 2.507 (1.027-6.121), 3.253 (1.635-6.473), 2.563 (1.285-5.111), respectively]. Conclusions Elderly patients with MDR-TB exhibit a high prevalence of complications/comorbidities, a high incidence of drug adverse reactions, and unfavorable treatment outcomes. Out-of-town medical treatment, advanced age, and experiencing drug adverse reactions are risk factors for adverse treatment outcomes.

Humans ; Diverticulum, Colon/surgery* ; Cholecystectomy/adverse effects* ; Tomography, X-Ray Computed

Objective To investigate functional connectivity changes in Parkinson disease in the resting brain using functional magnetic resonance imaging.Methods Nine patients with Parkinson disease and eight age-matched healthy volunteers were entered into the study.The bilateral globus pallidus were chosen as seed points, the functional MR data acquired in the resting state were processed to investigate functional connectivity in PD patients and the results were compared with those of the controls.Results In age-matched healthy controls, there are regions which had functional connectivity with bilateral globus pallidus, including bilateral temporal poles, bilateral hippocampus, bilateral thalami, posterior cingulate cortex, right middle occipital gyrus and fight superior parietal gyms.In PD patients, brain regions including bilateral cerebellum, left hippocampus, bilateral superior temporal gyri, left inferior frontal gyms, left middle frontal gyms, left precentral gyms, left inferior parietal gyrus and left superior parietal gyms, had functional connectivity with bilateral globus pallidus. Compared to healthy controls, increased functional connectivity in bilateral cerebellum, bilateral temporal lobes, left frontal lobe and left parietal lobe, and decreased functional connectivity in bilateral thalami were observed in PD patients.Conclusion Abnormal changes of brain functional connectivity exists in Parkinson's disease in the resting state.

OBJECTIVETo identify and generalize classes of public health laboratory detection activities and to discuss the method of identification and generalization of classes of Public Health Conceptual Information Model.

METHODSAt first, materials should be collected from consulting literatures and experts, referring to the existing system. Then, identification and generalization of classes are got for business process analysis, writing description documents, summing up important conceptions and activities, By use-case analysis, use-case diagram and tabulation of important conception and activities and reference to PHCDM, a structural diagram of classes is constructed.

RESULTSA structure diagram of classes of public health laboratory detection activity is given.

CONCLUSIONSThis is a feasible method in identification and generalization of classes of public health laboratory detection activities.

Objective To explore the biological activities and the MR imaging signal intensities (SIs) characteristics of differentiations of neural-like cells induced by superparamagnetic iron oxide (SPIO)
and green fluorescent protein (GFP) double-labeled bone marrow-derived mesenchymal stem cells (BMSCs) in vitro. Methods GFP-BMSCs were labeled with different concentrations of SPIO in vitro (the concentration of the A, B, C and D group was 25, 50, 75 and 100 ug/ml, respectively;the E group without labels of SPIO served as the control group). The Prussian blue stainings were used to detect the labeling rates of SPIO. The iron contents of cells were measured by atomic absorption spectrometer. The CCK8 experiments were used to detect the cell proliferation rates. The cell cycles were detect by PCR. Each of the A-E groups had a test tube with 1 × 108 cells. All test tubes underwent T2* weighted imaging (T2*WI) and susceptibility weighted imaging (SWI) in a MR imaging scanner. The optimal group was defined by comparing the measurements of SIs between T2*WI and SWI. The optimal group and the E group together induced the differentiations of osteogenesis and neural-like cells. The stainings of alizarin red, osteocalcin and Nissl, NeuN, and NF-200 were performed at 72 hours. Real-time quantitative PCR was used to detect the expression levels of RNA in tub3, nestin, NSE, MAP-2 and Syt1. The positive staining rates and the expression levels of RNA were compared between the two groups. Finally, SWI was used to analyse the changes of SIs. One-way analysis of variance (ANOVA) was used to the multi-group comparison. Using least significant difference (LSD) test to analyse the comparisons between the multi-groups. Results The labeling rates of the A-D groups were 100%. The iron contents of cells in the A-E groups were (14.36 ± 7.61), (21.73±3.42), (30.54±8.73), (33.65±9.62), and (2.31±0.32) pg/cell, respectively. The iron contents of cells in the A-D groups were significantly higher than those in the E group ( F=3.852, P=0.003). There was no significant difference between the C and D groups (P=0.267). In all groups, the D group had the lowest OD value in the CCK-8 experiments (3.18 ± 0.46). In the A-E groups, the changes of SIs in SWI were significantly lower than those in T*2 WI. There was no significant difference in SIs of SWI between the C group (145.89±14.31) and the D group (127.37±12.21). Except the comparison between the group C and D, the comparisons between all the groups had significant differences (P<0.001). The percentages of SI attenuations in SWI and T*2 WI were 48.15% and 69.34%, respectively. The proportions of non-neurons cells and the positive rates of Nissl's stainings in group C and E had no significant differences (P>0.05). The expression levels of tub3, nestin and NSE were significantly higher before than after induced differentiations (P<0.01). SIs of SWI had no significant difference between before and after induced differentiations in the C group (t=1.26, P=0.236). Conclusions SPIO and GFP double-labeled BMSCs can induce neural-like cells without influencing biologic activities. MR SIs are decreased by the increase of SPIO concentrations in cells. SWI was the most sensitive sequence. The SIs of SWI has no differnce between before and after induced differentiations.