1.Value of Sysmex UF-1000i Urinary Sediment Analyzer in Diagnosis of Urinary Tract Infection due to Different Urinary Specimen Collection Methods
Yinyin HU ; Xiaoshun XIONG ; Xiangyang LI
Journal of Medical Research 2017;46(5):163-167
Objective To explore the value of Sysmex UF-1000i urinary sediment analyzer in diagnosis of urinary tract infection (UTI) and clarify the influence caused by different specimen on UF-1000i diagnosing UTI.Methods Totally 466 specimens examined bacterial culture and routine urinalysis were collected from patients suspected of UTI during July and August,2015 (samples of group A).148 specimens during late March and early April were gathered to implement a urine culture and then the rest of urine were detected byUF -1000i urinary sediment analyzer instantly(samples of group B).Bacteria and leukocyte counts were gathered and then receiver operating characteristic (ROC) carve was drawn regarding thegold standard as bacterial culture by SPSS18.0.Next,the threshold values of bacteria and leukocyte counts for diagnosis of UTI were found out.Meanwhile,itssensitivity,specificity,positive/negative predictive value,false positive/false negative value,and diagnostic accuracy were calculated.Results The cut off values to samples of group A were101.7 bacteria/μl and 18.8WBC/μl respectively and to samples of group B were 98.7 bacteria/μl and 11.1WBC/μl respectively.The area of Bacteria and leukocyte counts under ROC carve was 0.604 and 0.661 to samples of group A and 0.941 and 0.848 to samples Of group B.To samples of group B,combined Bacteria and leukocyte counts for UTI,the optimum sensitivity was 82.4%,specificity was 92.1%,positive predictive value was 77.8%,negative predictive value was 93.8%,false positive rate was 7.9%,false negative rate was 17.6%,and accuracy was 89.9%.Bacterial culture was reduced by 70.9%.Conclusion UF-1000i urine sediment analyzers have the value of early screening value and help to diagnose UTI.Urine that was sterilely collected and examined within two hours can make the value of UF-1000i maximized.
2.Effect of Four CT Scan Modes on Image Quality and Radiation Dose of Pulmonary Angiography
Yingyu DAI ; Xinxing MA ; Yinyin CHEN ; Xiaofei ZHOU ; Su HU
Chinese Journal of Medical Imaging 2015;(1):4-7,9
Purpose To compare radiation dose and image quality of different scan modes for CT pulmonary angiography (CTPA) including high-pitch flash mode, dual energy CT (DECT) mode, 128-slice mode of dual source CT and 64-slice CT mode. Materials and Methods One hundred and sixty-seven patients with suspected pulmonary embolism were retrospectively studied. All the patients underwent CTPA. Twenty patients were selected randomly from the patients scanned by high-pitch flash mode. Patients who were scanned by the other three modes were selected with body mass index and age matched those in high-pitch flash mode, with 20 patients in each group. Two radiologists assessed signal-to-noise ratio (SNR) and image quality with 5-piont scale. Dose parameters of volume CT dose index (CTDIvol), dose length product (DLP), and effective dose (ED) were compared among the four groups. Results Mean CTDIvol, DLP and ED were (3.72±0.74) mGy, (137.5±28.7) mGy · cm, and (2.34±0.41) mSv for Flash mode;(5.31±1.21) mGy, (181.6±34.5) mGy· cm and (3.24±0.57) mSv for DECT mode;(5.66±1.47) mGy, (198.7±42.1) mGy·cm and (3.58±0.63) mSv for 128-CT mode;and (6.75±1.68) mGy, (231.5±54.2) mGy·cm and (4.21±0.89) mSv for 64-CT mode. There was no significant difference of SNR and image quality among the four modes (P>0.05). Conclusion There are no significant difference of image quality among the four groups. Flash mode allows for minimum radiation dose compared to other modes. DECT mode and 128-CT mode get higher radiation dose with no difference between them. 64-CT mode gets the highest radiation dose.
3.Cytopathic effect of rotavirus NSP4 on rat neurons and its influence on intracellular calcium homeostasis
Xiaoshun XIONG ; Caixia LIU ; Yinyin HU ; Xiangyang LI
Chinese Journal of Microbiology and Immunology 2017;37(7):497-501
Objective To investigate the cytopathic effect of amino acid residues 86 to 175 of rotavirus nonstructural protein 4 (NSP486-175) on rat neurons and to analyze the underlying mechanism.MethodsPrimary cultured rat neurons were treated with NSP486-175 and the morphological changes induced in rat neurons were observed.Lactate dehydrogenase (LDH) activity in the culture supernatant of NSP486-175 treated-neurons was measured.Laser scanning confocal microscope was used to detect the concentration of intracellular Ca2+ labeled with Fluo-3 AM.Results Exogenous addition of NSP486-175 induced obvious cytopathic effect on rat neurons.The LDH activity in the culture supernatant of treated-neurons was stronger than that of the control group.The intensity and the distribution of fluorescence in neurons were altered after stimulation with NSP486-175.Conclusion NSP486-175 can induce the damage of rat neurons, which may be related to its role in increasing the concentration of intracellular Ca2+.This study may provide certain theoretical basis for understanding extra-intestinal spread and pathogenesis of rotavirus infection.
4.Human adipose-derived mesenchymal stem cells promote liver cell regeneration by up-regulating the expression of proliferating cell nuclear antigen
Guangjun SHI ; Yadong ZHANG ; Yinyin HU ; Xueying TAN
Chinese Journal of Tissue Engineering Research 2017;21(17):2690-2695
BACKGROUND: Adipose-derived mesenchymal stem cells (ADMSCs) can improve the liver function of rats with liver failure, which illustrates the important research value in the field of tissue engineering and cell transplantation.OBJECTIVE: To evaluate the therapeutic potential of human ADMSCs in heart failure rats and to discuss the possible biological mechanisms involved.METHODS: Heart failure rats were randomized into model and ADMSCs groups, which were given normal saline or DAPI-labeled human ADMSCs (3.0×106) via the tail vein. At 1, 3, 7 days after transplantation, we detected the biochemical indexes for liver function in rats. At 3 days after transplantation, the serum levels of cytokines, such as tumor necrosis factor α and interleukin-10, were detected, the histomorphological changes in the liver were observed by hematoxylin-eosin staining, and the protein expression of proliferating cell nuclear antigen was detected by western blot. RESULTS AND CONCLUSION: We found that human ADMSCs could migrate to the liver and lung tissues in rats after the transplantation via the tail vein. At 1 and 3 days after transplantation, the levels of serum alanine aminotransferase and aspartate aminotransferase were significantly reduced in the ADMSCs group as compared with the model group (P< 0.05); furthermore, the secretion of tumor necrosis factor α and interleukin-10 was significantly suppressed at 3 days after cell transplantation (P < 0.05). The results of hematoxylin-eosin staining indicated a significant improvement in liver degeneration and necrosis. The expression of proliferating cell nuclear antigen protein in the ADMSCs group was significantly up-regulated compared with the model group. To conclude, human ADMSCs can inhibit the inflammatory reaction and up-regulate the expression of proliferating cell nuclear antigen, to promote the regeneration of liver cells and he recovery of liver function.
5.Association of serum level of apolipoprotein M with disease activity in systemic lupus erythematosus.
Wenhan DU ; Ling WANG ; Hui LI ; Yinyin LIU ; Ting SHEN ; Min HU
Journal of Central South University(Medical Sciences) 2015;40(4):367-372
OBJECTIVE:
To explore the association of serum level of apolipoprotein M with disease activity in systemic lupus erythematosus (SLE).
METHODS:
A total of 65 patients with SLE, who came to Second Xiangya Hospital for treatment from April to November in 2013 (SLE group) and 120 age-and sex-matched controls (control group) were studied. The SLE group was further divided into three groups according to systemic lupus erythematosus disease activity index (SLEDAI): a mild activity group, a moderate activity group and a severe activity group (n=16, 16, 33, respectively). The control group was also divided into a disease control group (n=60) and a healthy control group (n=60). The serum levels of apo M were measured by enzyme-linked immunosorbent assay (ELISA). Other indicators including TC, TG, HDL, LDL, apo A1, apo B, and anti-dsDNA antibody were detected. The correlation between SLEDAI or anti-dsDNA antibody and apo M was assessed.
RESULTS:
Compared with the healthy control group, the expression levels of apo M and HDL were decreased significantly (both P<0.05), and the expression levels of anti-dsDNA antibody, TG, apo B were increased significantly in the SLE group (all P<0.05). Comparison among the three subgroups, no significant differences in apo M were found (all P>0.05). The serum concentration of apo M was significant negatively correlated with SLEDAI and anti-dsDNA antibody (r=-0.551, -0.562, both P<0.01).
CONCLUSION
Compared with the healthy control group, the serum levels of apo M in patients with SLE are significantly decreased. The apo M is closely correlated with disease activity of SLE and it might be used as an indicator to monitor the disease activity of SLE.
Apolipoproteins
;
blood
;
Apolipoproteins M
;
Case-Control Studies
;
Enzyme-Linked Immunosorbent Assay
;
Humans
;
Lipocalins
;
blood
;
Lupus Erythematosus, Systemic
;
blood
6.Advances in the study of methods for evaluating patient adherence to drug therapy
Fei ZHAO ; Zhihong WANG ; Zinan ZHAO ; Kexin LI ; Fei LIU ; Yinyin SONG ; Jianchun LI ; Pengfei JIN ; Xin HU
Chinese Journal of Geriatrics 2023;42(11):1389-1393
In this article, methods of measuring and evaluating treatment adherence, based on whether they are objective and subjective, are reviewed upon literature examination, and the advantages and disadvantages of each method for different population segments are also discussed.It is intended to provide medical professionals and researchers with a general framework about adherence assessment methods.During treatment and research, medical professionals and researchers should select the most appropriate methods for their purposes and provide effective and personalized evaluation methods to ultimately evaluate and improve patients' medication adherence.
7.Establishment of whole-process intelligent pharmaceutical care model for peritoneal dialysis patients
Yongfu HANG ; Yan XU ; Xiaohua DAI ; Tiantian WU ; Yinyin DUAN ; Deyu XU ; Kun HU ; Xingxing LIU ; Jianguo ZHU ; Liyan MIAO ; Lin LI
China Pharmacy 2023;34(21):2644-2648
OBJECTIVE To develop a whole-process intelligent model of pharmaceutical care for peritoneal dialysis (PD) patients, and to provide a reference for clinical pharmacists to provide standardized PD pharmaceutical care. METHODS The pharmaceutical care mode of PD patients at home and abroad was investigated and analyzed. Based on the actual situation of the First Affiliated Hospital of Soochow University (hereinafter referred to as “our hospital”), with “home→PD center outpatient→ inpatient department” as the main node, the recycling process of medication reconciliation was optimized. The whole-process intelligent pharmaceutical care model of PD was illustrated by improving the Chinese version of the drug-related problems (DRPs) classification tool, developing the corresponding pharmaceutical care process, and presenting specific cases. RESULTS Based on the medication therapy management (MTM) platform, our hospital had built a closed-loop PD whole-process intelligent pharmaceutical care model of “in-hospital pharmaceutical care (building document)-PD outpatient MTM-home pharmaceutical care (online App management)”. A “double cycle” workflow of “admission→discharge→outpatient” medication reconciliation cycle and “discovery-analysis-intervention-follow-up-record-evaluation” DRPs cycle was formed. CONCLUSIONS The establishment of the whole-process intelligent pharmaceutical care model for PD in our hospital provides experience for standardizing pharmaceutical care for PD patients, and can reduce DRPs.