1.Development of risk evaluation models for critically ill patients at high risk of invasive fungal disease
International Journal of Pediatrics 2016;43(7):544-547
Invasive fungal disease(IFD) is one of the causes leading to death in intensive care unit,and now more likely to occur in non-neutropenic critically ill patients.Early diagnosis and appropriate selection of patients at high risk of IFD to receive prophylactic antifungal therapy are of great concern.Risk factors related to IFD were established by multivariable analysis and then risk evaluation models were developed.Candida score could accurately select patients who would benefit from early antifungal treatment.Evaluation and validation of risk models for non-neutropenic critically ill patients at high risk of IFD were reviewed in this article.
2.Advances in diagnosis and treatment of invasive pulmonary fungal infections in children
Chinese Journal of Applied Clinical Pediatrics 2017;32(4):259-262
The prevalence of invasive pulmonary fungal infections (IPFIs) has increased in children,which becomes a clinical concern in recent years.With the availabilities of new diagnostic tools for fungi and more antifungal agents,children with IPFIs may achieve a much earlier diagnosis and treatment.This article reviewed the development of laboratory tests,diagnostic criteria,treatment strategies and commonly used antifungal agents for IPFIs.
3.Progress of myeloid-derived suppressor cells in myelodysplastic syndrome
Xingang LI ; Hongxia MA ; Xudong WEI
Journal of Leukemia & Lymphoma 2021;30(1):61-64
Myelodysplastic syndrome (MDS) is characterized by dysplastic and ineffective hematopoiesis that can result from aberrant expansion and activation of myeloid-derived suppressor cells (MDSC) within the bone marrow microenvironment. The proliferation and activation of MDSC lead to the dysfunction and depletion of natural killer cells and CD8 + T cells, and the recruitment of inflammatory cells and factors leads to the further accumulation of genetic abnormalities in MDS patients, leading to the progression of MDS. The accumulation of inflammatory cytokines in the tumor environment induces the expression of programmed death receptor 1 (PD-1) in hematopoietic stem cells and hematopoietic progenitor cells and the overexpression of programmed death receptor ligand 1 (PD-L1) in MDSC, and the interaction of PD-1/PD-L1 leads to the apoptosis of MDS hematopoietic progenitor cells and ineffective hematopoiesis. The experiments and clinical studies targeting MDSC have confirmed that correcting or reversing the bone marrow microenvironment of immune disorders in MDS is a therapeutic strategy to restore effective hematopoietic function.
4.Analysis of the medicine list essential for eyes in China
Hongxia, XIN ; Wei, LIU ; Lijie, WANG
Chinese Ophthalmic Research 2009;27(12):1138-1141
Objective The national essential medicine select system is the core of Chinese medicine policy.How to select drugs fundamental for eyes scientifically is an important ring in establishing the Chinese essential drug system.The present study attempted to compare the National Essential Medicines List and National Essential Insurance List of China with that of the WHO in order to provide reasonable evidence for the adjustment of a new National Essential Medicines List of China. MethodsThe WHO Essential Medicine List (15th edition,Version in 2007),National Essential Medicine List (Version in 2009,China),2009 National Essential Medicine List Chemical Medicine Name (Version in 2009) and National Essential Insurance List of China (Version in 2004) were reviewed.The similarity and difference in the category and number of drugs in the National Essential Medicines List and National Essential Insurance List between China and WHO were compared and analyzed.A descriptive method was adopted to analyze the sorts and numbers of eye drugs in the lists mentioned above.The analysis of drug price was based on the summary sheet from Zhejiang Province. ResultsLittle difference was found in the numbers of eye drugs between the National Essential Medicines List of China and WHO Essential Medicines List.Differences in the sorts of eye drugs were observed in the lists,especially between the National Essential Medicines List of China and WHO Essential Medicines List.Except for levofloxacin,all of the drugs in the National Essential Medicine List of China were included in the National Essential Insurance List of China.ConclusionThe selecting principle and renewing procedure of the National Essential Medicines List and National Essential Insurance List of China should be further improved in China based on the list from WHO.More attention should be paid to the standard,dosage form,affordability,maneuverability etc.during the selecting procedure of eye essential drugs.
5.Situation Changes of DNA Demethylation Analysis of FOXP3 TSDR at the Beginning of Patients with Secondary Pulmonary Tuberculosis
Xuecheng WU ; Hongxia JI ; Yue WEI
Journal of Modern Laboratory Medicine 2016;31(3):84-87,91
Objective To analyze changes of DNA demethylation analysis of FOXP3 TSDR at the beginning of the secondary pulmonary tuberculosis patientsby utilizing real-time PCR technology.Methods To select 47 patients of secondary pulmona-ry tuberculosis as a research group from June 2014 to May 2015 and 40 healthy donors as a control group.The peripheral blood mononuclear cells (PBMC)of research group and control group were isolated.CD4+CD25+T cells were isolated from PBMC.Genomic DNA was isolated from CD4+CD25+T cells.PCR was performed in a final reaction volume containing dem-ethylation-specific primers.Plasmid standard was generated by PCR products were enzyme digestion,TOPO TA cloning,and recycling and purification.A real-time PCR system was established by quantitatively analyzing the specificity of FOXP3 TS-DR demethylation to treg (regulatory T-cell).Treg numbers of control group at week 0 and research group treated at week 0,week 2,week 4 and week 8 by using real-time PCR assay of the FOXP3 TSDR demethylation.The experimental data was analyzed by using SPSS 1 6.0 software.Results The M.tuberculosis in sputum of research group were positive by smear mi-croscopy,however the results of control group were negative.The treg frequency of control group,2+ group and 3+ group respectively was 1.63%±0.70%,1.96%±0.10% and 0.86%±0.21%,respectively.The difference between the treg fre-quency of control group and that of 2+ group by smear microscopy had not statistical significance,however which of 3+group was opposite.The average treg frequency of research group treated at week 0,2,4 and 8 respectively was at 1.05%, 2.04%,3.44% and 2.79%,range of which respectively was 0.32%~2.03%,0.95%~3.95%,2.35%~4.95% and 1.02%~4.27%,95% confidence interval of which respectively was (0.93%,1.18%),(1.85%,2.24%),(3.27%,3.61%) and (2.60%,2.98%).The treg frequency of difference between control group and research group at week 0 had statistical significance (t=4.669,P<0.05).The treg frequency was influenced by time of therapy,using One-Way ANOVA analysis (F=347.2,P<0.001,df=3,within-subjects Contrasts:F=407.4,P<0.001,df=3).Test of the treatment time and group interaction effect was linear (F=678.2,P<0.001,df=1).Conclusion DNA demethylation analysis of FOXP3 TSDR was high sensitivity and specificity in monitoring changes of treg at the beginning of the secondary pulmonary tuberculosis pa-tients.
6.Surveys on the allocation of nursing personnel in domestic second-tier hospitals
Hongxia GAO ; Pengqian FANG ; Sheng WEI
Chinese Journal of Hospital Administration 1996;0(06):-
The paper analyzes the current situation of domestic second-tier hospitals from such perspectives as the allocation of nursing human resources, professional titles, the time needed to complete nursing tasks, and the actual number of nurse hours. It puts forward suggestions on the appropriate size and work load of the nursing force in domestic second-tier hospitals in the hope of providing empirical basis for revising the size of the nursing force in such hospitals.
7.Neuroprotective effect of lateral ventricle infusion of low-temperature fluid following focal cerebral ischemia-reperfusion in rabbits
Wei WU ; Huilin CHENG ; Jixin SHI ; Guiqin SUN ; Hongxia YIN
Chinese Journal of Tissue Engineering Research 2005;9(13):210-212
BACKGROUND: Neuroprotective role of hypothermia on cerebral ischemic-reperfusional impairment has been long acknowledged. Since general hypothermia is complicated and unfit for observing postoperative consciousness and neurological function, it is of important significance to explore novel methods of focal cerebral hypothermia.OBJECTIVE: To study the neuroprotective effect of lateral ventricle infusion of low-temperature fluid on ischemic neurons of middle cerebral artery (MAC) occlusion models established on New Zealand rabbits.DESIGN: A randomized case-control study based on experimental animal models.SETTING: Neurosurgical department and pathological department of a general military hospital of Chinese PLA.MATERIALS: This study was carried out at Neurosurgical Laboratory of Nanjing General Hospital, Nanjing Military Area Command of Chinese PLA. Altogether 18 healthy New Zealand male rabbits, weighing from 2. 8 to 3.2 kg, were selected 4 - 6 months after birth, and randomly divided into occlusion group, hypothermia group and control group.INTERVENTIONS: Cerebral focal ischemic-reperfusional model was established on the New Zealand rabbits through MCA occlusion for 2 hours followed by reperfusion for 24 hours.MAIN OUTCOME MEASURES: Scores for neurological function, water content in the left and right brain, pathological changes of nerve cells in the left MCA supplying region.pothermia group, significantly higher than that in occlusion group(7.58 ± 0.58 )( P < 0.01 ), but no significant difference could be observed in contrast with brain was(81.64 ± 0.82)% and (79.26 ± 1.30)% in occlusion and hypothermia groups with significant difference between them( P < 0.05), and it was significantly different between the left side [ (81.64 ± 0. 82 )% ] and opyknosis and deep staining could be observed in nerve ganglion cells in occlusion group under optical microscope, but no obvious pathological changes were observed in MCA supplying brain regions in hypothermia group.CONCLUSION: Permanent infusion of low-temperature fluid into the lateral ventricle plays an important neuroprotective role by attenuating cerebral ischemic-reperfusional impairment and improving post-ischemic neurological functions.
8.Effect of low temperature liquids trickled through the lateral ventricle on brain protection after rabbit local cerebral ischemia-reperfusion injury
Wei WU ; Jixin SHI ; Huilin CHENG ; Guiqin SUN ; Hongxia YIN ;
Journal of Medical Postgraduates 2003;0(08):-
Objectives:To explore the protective effects of continuous trickle of low temperature liquids through the lateral ventricle on neurons after rabbit local cerebral ischemia reperfusion. Methods: The middle cerebral artery (MCA) of New Zealand rabbit was clipped with micro aneurysm clip for 2 hours and reperfused for 24 hours. Immediately after clipping the MCA, we trickled the left lateral ventricle continuously with low temperature liquids to decrease the brain temperature to mild hypothermia(32-35℃) and maintained for 2 hours. After reperfusion for 24 hours, we assessed the animal's neural deficits, observe the pathology of the ischemic brain tissues dyed by HE and determined the dry wet ratio for brain edema in the sham operated group, the control group and the mild hypothermia group respectively.Results:①The grades of neural deficits in mild hypothermia group were obviously lower than that in the clipping group( P 0.05 );②The dry wet ratios were obviously different in the mild hypothermia group and clipping group;③ Pyknosis and dense dying by HE were observed in the neural nuclei of ischemic cortex tissues of the clipping group, but no obvious changes were observed in the mild hypothermia group. Conclusions:Trickling ventricle with low temperature liquids could alleviate cerebral ischemia reperfusion injury, ameliorated neural deficit after ischemia reperfusion and were protective on the brain.
9.Aldosterone inhibits Akt activation and induces apoptosis in rat podocytes
Cheng CHEN ; Guohua DING ; Wei LIANG ; Junya JIA ; Hongxia YANG
Chinese Journal of Nephrology 2005;0(08):-
Objective To evaluate the effect of ALD on podocyte apoptosis and the possible roles of Akt in ALD-induced apoptosis. Methods The cultured rat podocytes were incubated with increasing concentrations of ALD (10-9~10-5 mol/L) for variable time periods. Apoptosis was evaluated by cell nucleus staining and flow cytometry. RT-PCR was used to examine the expression of mineralocorticoid receptor (MR)and 11 Beta-hydroxysteroid dehydrogenase type 2 (11?-HSD2) mRNA in podocyte. Activation of Akt/PKB was evaluated by performing Akt kinase assay. Results ALD induced podocyte apoptosis in a dose- and time-dependent manner. The proapoptotic effect was attenuated by the presence of spironolactone (10-7mol/L). The expression of MR and 11P-HSD2 mRNA was demonstrated in the podocytes by RT-PCR. ALD also inhibited the activity of Akt in a dose-dependent manner, but the inhibitory effect was significantly ameliorated by the presence of spironolactone. The activity of Akt was negatively correlated with podocyte apoptosis. Conclusion ALD induces apoptosis in rat podocytes through the signaling mechanism by which Akt is inhibited.
10.Investigation of Iodine Nutritional Status and Thyroid Function in Pregnant Women During Different Periods
Tingting TAN ; Yuxin CHEN ; Li CHENG ; Hongxia WEI ; Kui ZHANG
Journal of Modern Laboratory Medicine 2017;32(3):115-118
Objective To study the iodine nutritional status and the thyroid function of pregnant women during different periods,and provide scientific basis for iodine supplementation.Methods Totally 728 pregnant women who visited the obstetric outpatient of Nanjing Drum Tower Hospital for routine prenatal care from December 2014 to August 2016 were recruited in this study,and at the same time 182 non-pregnant women were recruited as control group.The thyroid stimulating hormone (TSH) and free thyroxine (FT4) were measured by Roche 601.The urinary iodine level was measured by SR-I-100 kit.Results The median urinary iodine of 728 pregnant women was 168.24 g/L,and the median urinary iodine of those women in the T1,T2 and T3 period were 186.31,162.65 and 148.76 g/L,respectively.The TSH at T1 period was lower than T2 and T3 period (t=3.429,3.135,P<0.05).The FT4 at T1 period was higher than T2 and T3 period (t=5.251,5.965,P< 0.05).The prevalence rate of thyroid disease in normal urinary iodine group was lower than that in low urinary iodine group and high urinary iodine group (x2 =4.139,4.131,P<0.05).Conclusion There was no iodine deficiency among those pregnant women groups,but only 34.75 % individuals reached the appropriate iodine nutritional level,and the ratio of iodine insufficient increased with the extension of pregnancy.The whole prevalence rate of thyroid disease in abnormal urinary iodine pregnant women was obviously higher than that in normal.It is necessary to improve the pregnant women's knowledge of iodine nutrition,moreover it is suggested that urinary iodine monitoring and thyroid function should be conducted in pregnant women.