1.Case-Control Study on Risk Factors in Children with Epilepsy
xiao-tang, CAI ; rong, LUO ; hui, ZHOU ; dan, YU
Journal of Applied Clinical Pediatrics 2004;0(12):-
Objective To explore the risk factors in children with epilepsy and their effects on attack rate of epilepsy.Methods One hundred and sixty epilepsy patients(patient group,88 boys and 72 girls)and 150 healthy children(control group,72 boys and 78 girls)were selected.All children conformed epilepsy at the west China second hospital were consecutively included in the study for 6 months period.The range of age was from 1 month to 16 years[(7.0?4.7)years old] of patient group children.All children with epilepsy had no-causation seizure for more than twice time and were diagnosed by electroencephalogram.Neurologically normal children in same period,matched for age and sex,visiting the health care clinic were selected as controls.The range of age was from 2 month to 16 years [(6.3?4.5)years old] of control group children.The risk factors examined were febrile convulsions,head trauma,central nervous system infections,abnormal perinatal history,family history of epilepsy and parental consanguinity.The data of patients and controls were obtained from a questionnaire through personal interviews.Details on the patient,family history,and parental age at the time of childbirth were included.Medical records were then reviewed.According to the data type,the statistics were performed with ?2 test and the significance level was the P
2.Dynamic observation of paradoxical effect of echinocandins across Candida species in vitro
Rong ZENG ; Min LI ; Qing CHEN ; Le WANG ; Guixia Lü ; Yongnian SHEN ; Qing CAI ; Caixia LI ; Rongcai TANG ; Weida LIU
Chinese Journal of Dermatology 2012;45(4):243-245
ObjectiveTo dynamically observe the paradoxical effect (inhibitory at low concentratin but promotive at high concentration) of caspofungin and micafungin across Candida species in vitro.MethodsA broth microdilution testing was performed following the Clinical and Laboratory Standards Institute(CLSI) M27-A2 document to observe the paradoxical effect of caspofungin and micafungin across 85 Candida strains.The growth of Candida was observed on a daily basis for 7 days.ResultsAt 48 hours,the prevalence of paradoxical growth in C.albicans,C.glabrata,C.parapsilosis,C.tropicalis,C.dubliniensis and other species of Candida was 90%,20%,41.7%,37.5%,33.3% and 28.6% respectively after caspofungin treatment,and 5%,0,0,25%,33.3%and 0 respectively after micafungin treatment.The concentration range of caspofungin required for the paradoxical growth of C.albicans,C.glabrata,C.parapsilosis,C.tropicalis,C.dubliniensis and other species of Candida was 4-16,8-32,8-32,2-8,2-8,8-32 μg/ml respectively,and that of micafungin for the paradoxical growth of C.albicans,C.tropicalis and C.dubliniensis was 4-16,4-32 and 1-8 μg/ml,respectively.After 48 hours,the prevalence of paradoxical growth still increased in C.parapsilosis,C.glabrata,and other species of Candida following caspofungin treatment,and in C.albicans and C.glabrata following micafungin treatment.ConclusionsThe occurrence,and time of occurrence,of paradoxical effect of echinocandins is Candida speciesand drug-specific.The prevalence of paradoxical effect is higher for caspofungin than for micafungin,which seems unrelated to their MICs against Candida species.
3.Diagnostic Significance of BAT in Anaphylaxis to Non-ionic Contrast Media.
Hao-yue ZHANG ; Su-jun XU ; Xiao-xian TANG ; Ji-jun NIU ; Xiang-jie GUO ; Cai-rong GAO
Journal of Forensic Medicine 2015;31(3):188-190
OBJECTIVE:
To investigate the diagnostic significance of basophil activation test (BAT) in anaphylaxis to non-ionic contrast media through testing the content of CD63, mast cell-carboxypeptidase A3 (MC-CPA3), and terminal complement complex SC5b-9 of the individuals by testing their levels in the normal immune group and the anaphylaxis groups to β-lactam drugs and non -ionic contrast media.
METHODS:
The CD63 expression of basophilic granulocyte in blood was detected by flow cytometry. The levels of MC-CPA3 in blood serum and SC5b-9 in blood plasma were detected by ELISA.
RESULTS:
The CD63 expression of basophilic granulocyte in blood, the levels of MC-CPA3 and SC5b-9 of anaphylaxis to non-ionic contrast media and β-lactam drugs were significantly higher than that in normal immune group (P < 0.05).
CONCLUSION
There is activation of basophilic granulocytes, mast cells and complement system in anaphylaxis to non-ionic contrast media. BAT can be used to diagnose the anaphylaxis to non-ionic contrast media.
Anaphylaxis/diagnosis*
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Basophils/cytology*
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Carboxypeptidases A/metabolism*
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Complement Membrane Attack Complex/metabolism*
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Contrast Media
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Flow Cytometry
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Granulocytes/cytology*
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Humans
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Mast Cells/cytology*
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Tetraspanin 30/metabolism*
5.Application of cationic propyl gallate as inducer of thrombocyte aggregation for evaluating the platelet function of platelet donors.
Da-Xiang SHENG ; Cheng-Yin HUANG ; Guang-Yao SHI ; Xi-Lin OUYANG ; Li CAI ; Jian-Yu XIAO ; Rong-Cai TANG
Journal of Experimental Hematology 2005;13(6):1099-1102
The purpose of study was to investigate the feasibility of the application of cationic propyl gallate (C-PG) as inducer of platelet aggregation for evaluating the platelet function of single-donor plateletpheresis and identifying the incidence of defective platelet function among donors. Experiments were as follows: 3 healthy volunteers' platelet aggregation induced by 100-300 micromol/L C-PG was determined by LG-PABER analyzer to observe the effect of C-PG concentration on platelet aggregation; 30 healthy volunteers' platelet aggregation before and 24 hours after administration of 200-400 mg acetylsalicylic acid (ASA) was examined after induction by 200 micromol/L C-PG for determining the cut-off value to discriminate platelet dysfunction donors; the platelet aggregation of 483 platelet donors was detected and the activated plasma clotting time (APCT) of donors who have deficiency in platelet aggregation was examined for investigating the incidence of defective platelet function among donors. The results showed that platelets were activated by C-PG induction in a dose dependent manner, when concentration of C-PG reached 200 micromol/L, the percentage of platelet aggregation was highest. It significantly decreased after 24 hours with ASA than that before the administration (P < 0.001), especially in 180 seconds induced by C-PG. If cut-off point was fixed on the platelet aggregation < 20% in 180 seconds, donors of platelet dysfunction can be selected effectively. 25 of defective platelet aggregation function among 483 donors were detected, and 11 out of 25 platelet dysfunction donors had the deficiency in procoagulant activity with prolonged APCT. It is concluded that C-PG as inducer of platelet aggregation is feasible to screen the platelet function of donors. Five percent of platelet donors has function defect examined by C-PG as inducer of platelet aggregation.
Antioxidants
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chemistry
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pharmacology
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Aspirin
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administration & dosage
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Blood Donors
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Blood Platelets
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cytology
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drug effects
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physiology
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Cations
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chemistry
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Humans
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Platelet Activation
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drug effects
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Platelet Aggregation
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drug effects
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Platelet Aggregation Inhibitors
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administration & dosage
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Platelet Function Tests
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Platelet Transfusion
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Propyl Gallate
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administration & dosage
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chemistry
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Whole Blood Coagulation Time
6.Cold storage of platelet suspension by adding trehalose.
Cheng-Yin HUANG ; Rong-Cai TANG ; Li CAI ; Yun CUI ; Lu LIU
Journal of Experimental Hematology 2005;13(5):904-906
The study was aimed to explore the trehalose method for storing platelets in cold. (51)Cr-labeling platelet was used to detect the platelet survival. The platelet function in vitro was performed by platelet aggregate analyzer. After treatment with 50 mg/ml trehalose at 37 degrees C for 4 hours, the rabbit platelet concentrates (PC, 2.0 x 10(9)/ml) were stored in 4-8 degrees C refrigeration, the platelet function in vitro and survival of chilled platelets transfused into self-rabbits were observed. The results showed that trehalose could protect the chilled rabbit platelets. After PC stored at 20-24 degrees C and 4-8 degrees C for up to 24 hours, the platelet aggregate in vitro in response to 11.2 micromol/L ADP were (75.3 +/- 9.8)% and (80.5 +/- 12.5)%, the survival of PC stored at 20-24 degrees C and 4-8 degrees C for 24, 48, 72 hours after transfused into self-rabbits were (78.1 +/- 7.9)%, (65.4 +/- 6.7)%, (57.5 +/- 7.2)% and (5.1 +/- 2.5)%, (2.8 +/- 2.0)%, (0.9 +/- 0.8)%, respectively. The PC treated with 50 mg/ml trehalose were remained stable for up to 12 days of refrigerated storage in autologous plasma. The platelet aggregate in vitro in response to 11.2 micromol/L ADP at 12 days after stored in refrigeration was (77.8 +/- 9.5)%, the survival on 24, 48, 72 hours of platelet transfused into self-rabbits were (75.7 +/- 11.0)%, (67.0 +/- 8.5)%, (56.8 +/- 8.0)%, respectively. Compared with control group of storing at 20-24 degrees C for 24 h, P > 0.05. In conclusion, trehalose can protect the chilled blood platelets, prolong the circulation of refrigerated rabbit platelets, and not impair chilled rabbit platelet function.
Adenosine Diphosphate
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pharmacology
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Animals
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Blood Platelets
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cytology
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drug effects
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Blood Preservation
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methods
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Cell Survival
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Cryopreservation
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methods
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Cryoprotective Agents
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pharmacology
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Platelet Aggregation
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drug effects
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Platelet Transfusion
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Rabbits
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Trehalose
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pharmacology
7.Influence of raising oxygen content on function of platelet concentrate during preservation.
Tong ZHAN ; Jian-Yu XIAO ; Jing TAO ; Xi-Feng MIAO ; Yan-Cun LIU ; Rong-Cai TANG
Journal of Experimental Hematology 2006;14(4):826-828
To explore the influence of raising oxygen (dissolved oxygen) content on function of platelet concentrate, the platelet concentrate was prepared by a CS-3000 plus blood cell separator. Experiments were divided into 2 groups: test group and control group. After raising oxygen content in platelet plasma under sterile operation, the platelet samples of two groups were preserved in oscillator with horizontal oscillation at 22 +/- 2 degrees C. The platelet count, platelet aggregation rate, lactic acid content and CD62p expression level of platelet were detected on 0, 1, 2, 3, 4, 5 days of platelet preservation. The results showed that the platelet count and platelet aggregation rate decreased with prolongation of preserved time, while the lactic acid content and CD62p expression level of platelet increased gradually. Compared with control group, there were significant differences in aggregation rate of platelet preserved for 2-3 days, and in CD62p expression level of platelet preserved for 1-3 days, while significant difference was found in lactic acid content of platelet preserved for 1-3 days. It is concluded that raising content of oxygen in platelet plasma can provide more oxygen to compensate oxygen supply deficiency for platelet metabolism and improve the efficiency of platelet oxygenic metabolism and the quality of platelet during preservation.
Blood Platelets
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drug effects
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physiology
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Blood Preservation
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methods
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Humans
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Lactic Acid
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metabolism
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Oxygen
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pharmacology
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Platelet Aggregation
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drug effects
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Platelet Count
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Platelet Function Tests
8.Effect of phospholipomannan of Candida albicans on the production of interleukin 6 and interleukin 8 in monocytes.
Qing CHEN ; Min LI ; Rong-cai TANG ; Wei-da LIU ; Wu-qing ZHOU ; Yong-nian SHEN ; Gui-xia LV
Acta Academiae Medicinae Sinicae 2011;33(4):371-374
OBJECTIVETo investigate whether Candida albicans-native phospholipomannan (PLM) induce an inflammation response through Toll-like receptor(TLRé2 in human acute monocytic leukemia cell line (THP-1) cells.
METHODSHuman THP-1 monocytes were challenged with PLM in vitro. The mRNA expressions of TLR2, TLR4, proinflammatory cytokine [interleukin(IL)-6], and chemokine (IL-8) were assayed by real time reverse transcription polymerase chain reaction. The secretions of IL-6 and IL-8 were measured by enzyme-linked immunosorbent assay. The expression of TLR2 was analyzed with Western blot.
RESULTSPLM increased the mRNA expressions and secretions of proinflammatory cytokines (IL-6) and chemokines (IL-8) in THP-1 cells (all P=0.0000). PLM up-regulated the mRNA and protein levels of TLR2 (P=0.0000), whereas the mRNA level of TLR4 was not altered. PLM hydrolyzed with β-D-mannoside manno hydrolase failed to induce gene and protein expressions of TLR2, IL-6, and IL-8. Anti-TLRS-neutralizing antibody blocked the PLM-induced secretions of IL-6 and IL-8 in THP-1 cells (P = 0.0003, P = 0.0010).
CONCLUSIONCanidada albicans-native PLM may contribute to the inflammatory responses during Candida infection in a TLR2-dependent manner.
Candida albicans ; chemistry ; Cells, Cultured ; Glycolipids ; pharmacology ; Humans ; Interleukin-6 ; metabolism ; Interleukin-8 ; metabolism ; Monocytes ; drug effects ; immunology ; metabolism ; Toll-Like Receptor 2 ; metabolism ; Toll-Like Receptor 4 ; metabolism
9.A large-scale survey for rare blood group screening among blood donors in Chinese over Nanjing area.
Ling MA ; Yan-Chun LIU ; Min XUE ; Peng WEI ; Rong-Cai TANG
Journal of Experimental Hematology 2011;19(1):231-234
The purpose of this study was to investigate the distribution of 10 rare red blood groups in Chinese Nanjing population, so as to provide compatible rare blood to patients and to create a donor data bank. Jk (a-b-) (Kidd) phenotypes were detected by urea, while H-(H), GPA-(MNS), GPC-(Gerbich), i+ (Ii) and Lub-(Lutheran) phenotypes were detected by monoclonal, polyclonal antibodies with U type 96 well microplate technology. The screening of Jsb- and k-(Kell), Fya-(Duffy), Ok-(Ok), s-(MNS) and Dib-(Digeo) phenotypes were performed by polymerase chain reaction. The results showed that 2 Jk (a-b-) out of 40337 donation samples and 3 Fy (a-b+) out of 1782 donation samples were found, while no other rare blood phenotypes (H-, GPA-, GPC-, Lub-, Ok-, s-, Jsb-, k-, Dib- and i+) were detected. It is concluded that the frequencies of Jk (a-b-) and Fya(a-b+) are 0.0049% and 0.168% respectively. No more rare blood phenotype was found in this screening.
Asian Continental Ancestry Group
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genetics
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Blood Group Antigens
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classification
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genetics
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Blood Grouping and Crossmatching
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Erythrocytes
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cytology
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Humans
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Phenotype
10.Evaluation of the effects of glycosylation on in vivo survival of cold-storage human platelets by using rabbit model.
Rong-Cai TANG ; Cheng-Yin HUANG ; Xiao-Ping PEI ; Bao-An CHEN ; Cui-Ping LI ; Guang-Yao SHI
Journal of Experimental Hematology 2005;13(6):1113-1116
To study the effects of glycosylation on survival of cold-storage human platelets by using rabbit model. (51)Cr-labeling platelets were used to detect the platelet storage survival. The human platelets (2.0 x 10(12)/L) treated with 5 g/L uridine diphosphate galactose (UDP-Gal) were stored in 4 degrees C refrigeratory up to 10 days. The survival of human platelets in rabbits whose reticuloendothelial system was inhibited by the administration of ethyl palmitate was monitored in blood drawn at various times after the platelet transfusion. The results showed that the survival rate of platelets was significantly increased in cold-storage human platelets by UDP-Gal treatment. The survival rates of platelets at 2 hours after transfusion into rabbits in groups of fresh platelets group, UDP-Gal + cold platelets group and cold platelets group were (68.9 +/- 8.5)%, (65.4 +/- 8.0)% and (5.0 +/- 2.6)%, respectively. Compared with cold platelets group, significant differences were seen among all groups (P < 0.01). UDP-Gal + cold platelets group had no significant differences compared with fresh platelets group (P > 0.05). It is concluded that UDG-Gal can provide the protective effect on cold-storage human platelets and prolong the survival time of refrigerated human platelets in rabbit model.
Animals
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Blood Platelets
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cytology
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metabolism
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Blood Preservation
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Cell Survival
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drug effects
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Cryopreservation
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methods
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Glycosylation
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drug effects
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Humans
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Models, Animal
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Platelet Transfusion
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Rabbits
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Uridine Diphosphate Galactose
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pharmacology