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Objective:To establish an animal model of acute systemic cold injury in mice.Methods:There were 98 C57BL/6 mice, half male and half female, with body weight of 22-27 g and age of 10 weeks. The mice were randomly divided into 7 groups ( n=14) according to the changes of anal temperature in cold environment, namely, group A (38.5 ± 1) ℃, group B (35 ± 1) ℃, group C (30 ± 1) ℃, group D (25 ± 1) ℃, group E (20 ± 1) ℃, group F (15 ± 1) ℃, and group G (10 ± 1) ℃, among which, group A was the blank control group, and the rest groups were the experimental group. The mice in the blank control group were placed in the normal environment (20 ± 5) ℃, and the mice in the experimental group were placed in the low temperature artificial climate box at - 20℃. The anal temperature of the mice was measured intermittently (as the core temperature), and the time required for the core temperature of the mice to drop to groups B, C, D, E, F and G was recorded. The righting reflex was used to evaluate the consciousness state, the action ability and the general state of each organ of mice were observed, and the blood routine and HE staining of each organ were detected. Results:The lower the core temperature of the experimental group, the longer the time required. The consciousness state, action ability, general state of organs, blood routine, and HE staining of organs in groups B, C, and D were basically the same as those in group A, and there was no acute systemic cold injury. Therefore, the blood routine, general observation of organs, and HE staining of organs in groups B, C, and D were no longer displayed compared with those in group A. Compared with group A, mice in group E began to suffer from disturbance of consciousness and action ability. With the decrease of core body temperature, the damage was aggravated, and mice in group G died. Compared with group A, the indices of blood routine test (WBC, RBC, HGB, PLT) of mice in group E began to decrease, and the univariate variance calculation showed that only WBC changes had statistical significance ( P<0.05). Compared with groups A and E, the indices of blood routine test (WBC, RBC, HGB, PLT) of mice in group F were further reduced, and the changes of each index in univariate variance calculation were statistically significant ( P<0.05). The general observation results showed that compared with group A, the lung, liver and spleen surfaces of mice in group E began to darken, and compared with groups A and E, the lung, liver, spleen, kidney and heart of mice in group F were further deepened and darkened, with irregular edges. HE staining results of various organs showed that compared with group A, the mice in group E began to have partial alveolar structure destruction and a small amount of inflammatory cell infiltration, the central vein of the liver was slightly congested, and the red and white pulp of the spleen were indistinct. Compared with groups A and E, the pathological structure damage of the lung, liver, spleen, kidney, heart and brain tissues of the mice in group F was further aggravated. Conclusions:Detection of consciousness state, action ability, general state of organs, blood routine and HE staining indices of organs in mice under low temperature can simulate the progress of clinical acute cold injury, and the animal model of acute systemic cold injury was successfully prepared.
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@#Abstract: Objective To investigate the impact of SARS-CoV-2 virus infection on the risk of thrombosis in COVID-19 outpatient patients with mild and regular symptoms. Methods Outpatient patients during the SARS-CoV-2 large-scale infection period after the policy adjustment for COVID-19 in Beijing in 2022 were selected as the observation group, and the dynamic zero-clearing period before the policy adjustment and outpatient patients during the 2022/2021/2020 period were taken as the three control groups. The patients with physiological factors that may increase the risk of coagulation, such as thrombotic diseases, malignant tumors, female pregnancy and other physiological factors, were excluded. Pediatric patients under 14 years old were also excluded. Age was expressed as median (interquartile). The changes in blood routine, fibrin/fibrinogen degradation products, and D-Dimer in Beijing outpatient patients were studied with statistical method and data analysis techniques. Results Compared with the control groups, the observation group showed a statistically significant decrease in red blood cells (RBC), hemoglobin (Hb), and hematocrit (HCT) levels, and an increase in monocytes (MONO) and platelet (PLT) counts, all showed statistically significant differences (P<0.0001). The proportion of fibrinogen degradation product (FDP) and D-Dimer of observation group exceeding the range increased significantly. Compared with the three control groups, the number of outpatient fibrinogen degradation products (FDP) in the observation group of patients aged 50 years and verage number of patients under 50 years old in the observation group with D-Dimer exceeding the threshold increased by more than 48.98%, and the monthly average number of patients with D-Dimer exceeding the threshold in patients aged 50 or older increased by 346%-998%. Conclusions The results of this study suggest that outpatient patients with mild or regular SARS-CoV-2 infection are also at risk for thrombotic events, and monitoring blood coagulation indicators such as D-dimer is recommended to avoid the sudden onset of thrombosis-related fatal complications .
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[Abstract] Objective To study the role of hypoxia inducible factor-1α (HIF-1α) / stromal cell-derived factor-1 (SDF-1) pathway in high altitude hypoxia preconditioning in rat. Methods Seventy-six adult male SD rats, which through fed in low-pressure oxygen chamber (altitude 5000 m) and Xining (altitude 2260 m) to establish the rat model of hypoxia preconditioning. Rats randomly divided into 6 groups: control group (Ctrl), high altitude hypoxic preconditioning 1 day group (HHP-1d), high altitude hypoxic preconditioning 4 days group (HHP-4d), high altitude hypoxic preconditioning 15 days group (HHP-15d), high altitude hypoxic preconditioning 30 days group (HHP-30d), medium altitude hypoxic preconditioning group (MHP). 7. 0 T small animal MRI was used to observe the intracranial structure, diameter of basilar artery and cerebral blood flow in the hippocampus and brainstem regions by the sequences of T2 weighted images (T2WI) and arterial spin labeling (ASL) in the groups of Ctrl, HHP-4d, HHP-30d and MHP. In each group, blood routine was tested, the concentrations of HIF-1α, SDF-1 in serum, platelet activating factor (PAF)and P-selectin (SELP) in plasma were detected by the method of ELISA. Results In the hypoxia preconditioning groups, intracranial structure and diameter of basilar artery had no significant difference, while cerebral blood flow in the regions of brainstem and hippocampus increased significantly (P<0. 05). Meanwhile, red blood cell and white blood cell increased significantly, while platelet decreased significantly in the groups of hypoxia preconditioning (P<0. 05). Red blood cell and platelet in MHP group were closer to Ctrl group. The concentrations of HIF-1α and SDF-1 (except HHP-1d group) increased significantly in hypoxia preconditioning groups (P<0. 05).The concentrations of PAF and SELP increased significantly in HHP-1d and HHP-15d groups. The concentration of PAF decreased significantly in the HHP-4d and HHP-30d groups, and SELP decreased significantly in HHP-4d group (P<0. 05). Conclusion Hypoxia preconditioning can increase oxygen storage and immune defense capacity, improve brain reserve capacity and play the effect of brain protection through HIF-1α/ SDF-1 pathway. The best effect preconditioning was feed at medium altitude (altitude 2260 m) for 30 days.
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【Objective】 To explore the changes of blood routine, biochemical indexes and coagulation indexes of voluntary blood donors after COVID-19 vaccination, so as to provide a scientific basis for blood donation strategy and to ensure blood safety. 【Methods】 From March to August 2021, 55 blood donors who had received COVID-19 vaccination were sampled at the 2nd, 4th and 8th weeks after vaccination for blood routine, biochemical and coagulation indexes testing. The changes were analyzed. 【Results】 At the second week after vaccination, abnormal blood routine indicators occurred 16(5.82%) occasions, abnormal biochemical indicators 159(36.14%) occasions; at the 4th week after vaccination, abnormal blood routine indicators 14(5.10%) occasions and abnormal biochemical indexes 151(34.32%) occasions. There was no difference in blood routine and biochemical indexes before and after vaccination(P>0.05). Among the coagulation indexes, the incidence of abnormal increase of FⅧ activity at the 2nd, 4th and 8th weeks after vaccination were 34.5%(19/55), 40%(22/55) and 50.9%(28/55), respectively. The the incidence of abnormal increase of TT were 3.6%(2/55), 7.2%(4/55) and 21.8%(12/55), respectively. Both TT and FⅧ activity had a tendency of increasing(P<0.05), APTT had an decreasing trend(P<0.05), and FIB content took on dynamical changes(P<0.05). 【Conclusion】 The blood indicators of blood donors after receiving COVID-19 vaccination are almost within the normal reference values. They can donate regularly according to the required interval, which may help to improve the potential transient changes of coagulation function.
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【Objective】 To analyze the changes of blood routine and platelet related parameters of the elderly apheresis platelet donors since the first donation, so as to ensure the health and platelet quality of the elderly apheresis donors. 【Methods】 From 2019 to 2021, a total of 69 apheresis platelet donors in our center, aged 55-60 years old, involving 3400 occasions of donation, were enrolled in this study. The change trends of blood routine and platelet related parameters before and after the age of 55 were retrospectively analyzed. One way ANOVA was used for group comparison, and Pearson correlation analysis of platelet parameters was performed. 【Results】 The values of blood routine and platelet related parameters were higher in men than in women (P0.05). As for the males in comparison of the parameters before 55 years old, WBC decreased significantly after 55 years of age (P0.05). The changes of PDW, MPV and P-LCR were consistent and showed a linear positive correlation. 【Conclusion】 The blood routine tests of the elderly apheresis platelet donors were all within the normal range and the proportion was relatively stable. Personalized blood donation schemes should be customized for the elderly blood donors and the health management of blood donors should be implemented.
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Objective To compare the pharmacodynamic effects of Scutellaria baicalensis pith-nodecayed and S. baicalensis pith-decayed on pneumonia. Methods The minimal inhibitory concentration (MIC) of S. baicalensis pith-nodecayed and S. baicalensis pith-decayed on Streptococcus pneumoniae was determined by in vitro experiments with double dilution method. In vivo experiments, taking pneumonia rat as model, body temperature and lung weight coefficient, blood test and pathological section of lung in rats were used as evaluation index to evaluate the pharmacodynamic difference of the effect of S. baicalensis pith-nodecayed and S. baicalensis pith-decayed on pneumonia rats. S. baicalensis pith-nodecayed and S. baicalensis pith-decayed antibacterial activity and pathological indicators were analyzed with PLS-DA. Results The MIC of S. baicalensis pith-nodecayed to Streptococcus pneumoniae was 0.5 g/mL, and the MIC of S. baicalensis pith-decayed to Streptococcus pneumoniae was 0.25 g/mL. Both S.baicalensis pith-nodecayed and S. baicalensis pith-decayed could significantly reduce the inhibitory concentration body temperature, lung weight coefficient, white blood cell count, neutrophil number, and lymphocyte number in whole blood. PLS-DA showed that there were significant differences in the pharmacological effects of S. baicalensis pith-nodecayed and S. baicalensis pith-decayed. Conclusion S. baicalensis pith-nodecayed and S. baicalensis pith-decayed have a certain effect on the treatment of pneumonia, the role of the strength of the two have significant differences, the role of S. baicalensis pith-decayed is better.
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Objective To investigate the correlation between the mean platelet volume (MPV) ,neutrophil-to -lymphocyte(NLR) and the severity as well as prognosis of sudden sensorineural hearing loss (SSHL) patients . Methods A retrospective cohort study involved 172 patients with SSHL from January 2012 to May 2015 .The distri-bution characteristics of routine blood (white blood cells ,neutrophil ,lymphocyte ,MPV ,NLR) in different audio-metric curves (hearing loss at low frequencies ,flat type ,high frequencies ,and total deafness) and prognosis of re-covery (complete ,partial ,slight ,and no recovery )were analyzed by SPSS 19 .0 analysis chi square test ,and the prognosis was estimated by using the receiver operating characteristic curve (ROC) .Results MPV and NLR levels in the severe and profound hearing loss group were significantly higher than that in different audiometric curves (P<0 .01 and P<0 .01) .MPV and NLR level in the partial recovery group and the no recovery group were signifi-cantly higher than that in the complete recovery group (P<0 .01 and P<0 .01) .The value of the MPV and NLR showed negative correlation with the prognosis (hearing recovery ) ,and the lymphocyte was positive with the prog-nosis .The sensitivity and specificity of MPV and NLR count 24 hours after admission predicting the prognosis of hearing recovery were 66 .2％ and 85 .5％ ,58 .4％ and 86 .7％ ,respectively .Conclusion The changes of MPV and NLR in SSHL patients are related to the severity of hearing loss ,and NLR count at 24 hours after admission may play an important role in prognosis of this disease .
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Objective To understand the changes in body weight,spleen weight and complete blood cells in BALB/c mice infected with Babesia microti.Methods For the infection group,six weeks old BALB/c mice were injected intraperitoneally with a dose of 100μL of B.microti infected blood(20％RBC infection rate,each mouse).For the determination of the progres-sion of B.microti infection up to 28 days of the infection,the microscopic visualization of thin blood smears of tail blood stained with Giemsa staining was performed in the infection group.The experiment was carried out at different intervals on days 0,7,14,21,and 28 after the infection,respectively.The mice were sacrificed,and spleens were collected and weighed,and the body weight of the mice was also determined.The blood cells of the mice were analyzed by using Mindray BC-5300 Vet animal automatic hematology analyzer.Results On the first day after the infection,B.microti was visualized in RBC of the infection group.The significantly highest infection rate(55％)appeared on the seventh day of the infection,and then steadily decreased;the mice attained the latent infection phase on the 28th day post-infection,when the parasite could not be visualized in the pe-ripheral blood.The mice in the infected group acquired a significantly lowest body weight on the 7th day of the infection,and then gradually returned to normal.The weight of the spleen was the significantly highest on the 14th day of the infection,and then consistently decreased.On the 28th day of infection,the spleen weight was still higher than that of the control group.There were no significant changes in the number of white blood cells(WBC),lymphocytes,and eosinophils in the infected mice;and altered levels were all within the normal mouse reference range.The number of red blood cells,hemoglobin,and platelet count in the infected mice were decreased to the lowest level when the B.microti infection rate achieved to the highest,and then gradu-ally returned to the normal levels.Conclusions B.microti infection can cause body weight loss,splenic weight gain,and re-duction in the number of erythrocytes and platelets in whole blood of the mice.Besides,the whole blood cell analyzer has a diag-nostic significance in the identification of babesiosis.
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Objective To study the influence of different placing time of child peripheral blood on blood routine parameters in order to increase the working efficiency of clinical blood routine test.Methods Each 300 μL of peripheral blood was collected from the right hand ring finger in 50 healthy children in our hospital from January 2015 to January 2016.The blood routine was performed by using the whole blood cells analyzer at instantly after blood collection,at 0,5,10,15,30 min after blood collection under the room temperature (20 to 25 ℃).Results With the measured results at 15 min as the control,the detection results at the other times points had no statistical difference (P>0.05).Compared with the detection results at 5 min,the white blood cell count(WBC) and platelet volume distribution width (PDW),lymphocyte absolute value (LYM),neutrophil percentage absolute value (NEU),platelet count (PLT),red blood cell volume distribution width (RDW),hemotocrit (HCT) and plateletcrit(PCT) were statistically different (P<0.05).Conclusion Reasonably arranging time,eliminating pre-analysis error and reducing the influence of peripheral blood placing time on blood routine parameters have an important significance to accurately judge the clinical dat.It is recommended that the blood routine detection time should be controlled within 10-30 min in order to increase the working efficiency of clinical detections.
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Objective To evaluate the diagnostic value of these alternant indexes by compare the results of routine blood test of early herpes zoster(HZ),acute cholecystitis and acute myocardial infarction patients.Methods According to some inclu-sion and exclusion criteria,78 HZ patients,59 acute cholecystitis and 51 acute myocardial infarction patients from October 2013 to March 2017 were included.The receiver operator characteristics(ROC)were used to evaluate the diagnostic value of the blood corpuscle indexes.Results White blood cell count(WBC),blood platelet count(PLT)and neutrophilic granulo-cyte percentage(NE%)of HZ patients were lower than the acute cholecystitis and acute myocardial infarction patients(P<0.001).Lymphocyte percentage(LYM%)and monocyte percentage(MO%)were higher than the others'.The NE% index had a certain diagnostic value(AUC=0.848,95%CI:0.792~0.905).There was a highest specificity in LYM% index(spe-cificity=0.963).Conclusion There were some clinical significance of routine blood cell count results on the early HZ diag-nosis,which can reduce the missed diagnosis and misdiagnosis rate of an early diagnosis herpes zoster.
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Objective To investigate the diagnostic value of blood routine and inflammatory factors in children with acute fever.Methods 137 children of acute fever were divided into infection group(including bacterial infection and non bacterial infection) and non infection group.And 50 healthy children(control group) were collected.Results were compared with blood routineand inflammatory factor.Results White blood cell(WBC),platelet(PLT) and neutrophil percentage(N％) were significantly increased in the bacterial infection group(P＜0.05),and there was significant difference between the control group,the non-infection group and the non-bacterial infection group(P＜0.05),and the percentage of PLT and N％ was statistically significant(P＜0.05) compared with non-infected group.The levels of interleukin(IL)-2 in the bacterial infection group were significantly lower than those in the nonbacterial infection group,the non-infection group and the control group(P＜0.05).The levels of IL-6,IL-10 and TNF-α in bacterial infection group were significantly higher than those in control group and non-infected group(P＜0.05).Misdiagnosis rate of inflammatory factors is the highest (18.25 ％),followed by blood 14.60％,and blood combined with inflammatory factors is the lowest (8.76 ％).Conclusion Blood combined with inflammatory factors can effectively reduce the misdiagnosis rate,the children with the blood unclear caused of should be combined with inflammatory factors detection in order to further clarify the cause and early treatment.
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Objective To investigate the diagnostic value of blood routine and inflammatory factors in children with acute fever.Methods 137 children of acute fever were divided into infection group(including bacterial infection and non bacterial infection) and non infection group.And 50 healthy children(control group) were collected.Results were compared with blood routineand inflammatory factor.Results White blood cell(WBC),platelet(PLT) and neutrophil percentage(N％) were significantly increased in the bacterial infection group(P＜0.05),and there was significant difference between the control group,the non-infection group and the non-bacterial infection group(P＜0.05),and the percentage of PLT and N％ was statistically significant(P＜0.05) compared with non-infected group.The levels of interleukin(IL)-2 in the bacterial infection group were significantly lower than those in the nonbacterial infection group,the non-infection group and the control group(P＜0.05).The levels of IL-6,IL-10 and TNF-α in bacterial infection group were significantly higher than those in control group and non-infected group(P＜0.05).Misdiagnosis rate of inflammatory factors is the highest (18.25 ％),followed by blood 14.60％,and blood combined with inflammatory factors is the lowest (8.76 ％).Conclusion Blood combined with inflammatory factors can effectively reduce the misdiagnosis rate,the children with the blood unclear caused of should be combined with inflammatory factors detection in order to further clarify the cause and early treatment.
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Objective To explore the value on application of combined C-reactive protein(CRP), serum albumin(PA)with blood routine inspection in diagnosis of bacterial infectious diseases in children.Methods 98 cases of patients confirmed infectious diseases in our hospital were selected as the study objects, and 68 cases with bacterial infectious diseases were as the bacterial infection group, while 30 cases with non-bacterial infection were as the non-bacterial infection group.Another 50 cases of healthy children were as the control group.All the children and children in the control group were given CRP, PA and blood routine detection, The diagnostic coincidence rates were evakuated according to the examination Results .ResultsCRP and WBC levels in the bacterial infection group were significantly higher than those in the non-bacterial infection group and the control group (P<0.05), PA level in the bacterial infection group were significantly higher than that in the non-bacterial infection group and the control group (P<0.05), The children's urine and cerebrospinal fluid or sputum bacterial culture results as the gold standard, 68 cases were true positive, and 30 were negative.CRP diagnosis showed 40 cases were positive, 58 cases negative, 13 cases false positive, and 41 cases false negative, the detection sensitivity was 39.71%, specificity was 56.67%, and coincidence rate was 44.90%.PA diagnosis showed 43 cases were positive, 55 cases negative, 12 cases false positive, and 37 cases false negative, the detection sensitivity was 45.59%, specificity was 60.00%, and coincidence rate was 50.00%.WBC diagnosis showed 47 cases were positive, 51 cases negative, 14 cases false positive, and 35 cases false negative, the detection sensitivity was 48.53%, specificity was 53.33%, and coincidence rate was 52.04%.CRP, PA, WBC combined diagnosis showed 62 cases were positive, 36 cases negative, 3 cases false positive, and 9 cases false negative, the detection sensitivity was 86.76%, specificity was 90.00%, and coincidence rate was 87.76%.The sensitivity, specificity and coincidence rate of CRP, PA and WBC combined diagnosis were significantly higher than those of CRP, PA and WBC diagnosis results.There were no significant differences in sensitivity, specificity and coincidence rate among single diagnosis of CRP, PA and WBC.Conclusion Implementation of combined CRP, PA with WBC in diagnosis of bacterial infection in children can effectively improve diagnostic coincidence rate.and provide theoretical basis for clinical treatment.
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ABSTRACT The genus Aconitum has strong toxicity, but the acute toxicity of baked Aconitum flavum Hand.-Mazz., Ranunculaceae, was reduced significantly on the premise of keeping anti-inflammatory and anti-nociceptive activities. However, the risk associated with long-term use is unknown. In a sub-chronic toxicity study, rats were orally administered A. flavum at doses of 0.76–3.03 g/kg for 90 days and further recovered for 14 days. Our results showed that oral treatment with A. flavum for 90 days caused significant changes in some hematological indicators at doses of 3.03 and 1.52 g/kg, such as red blood cell, hemoglobin, mean corpuscular volume, mean corpuscular hemoglobin and mean corpuscular hemoglobin concentration. These results indicated that the A. flavum affects the structure and function of red blood cell. Furthermore, significant changes were observed in the white blood cell at dose of 3.03 g/kg in male rats, which confirmed tissue damage or toxicity. The liver function tests exhibited non-significant alterations in aspertate aminotransferase, alanine aminotransferase and avenin-like storage proteinsgene. But other parameters, such as total protein and albumin were obviously decreased at all doses. A. flavum also caused a significant decrease in glucose, cholesterol and triacylglyceride at all doses. For kidney function, there were significant elevations in urea and creatinine at doses of 3.03 and 1.52 g/kg. The levels of certain electrolytes (Na+, K+ and Cl-) were significantly different after 90 days of treatment with A. flavum (3.03 and 1.52 g/kg). Organs were observed by light microscopy after hematoxylin-eosin staining. Hemosiderin depositions in the spleen were observed in the A. flavum group. These data demonstrated that the subtoxicity of A. flavum was reduced considerably by baked, but the subchronic toxicity effects on the liver, kidney and spleen should not be ignored.
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Objective To establish blood reference ranges and compare these ranges with national standard in northeast Sichuan area .Methods Routine blood parameters of red blood cell ,white blood cell ,hemoglobin blood platelet count were detected in 12 480 healthy adult and old persons(divided groups according to gender ,age) and 1 120 neonatal from June 2013 to June 2014 in North Si-chuan Medical College Affiliated Hospital ,and concluded their routine blood reference range ,then analyzed the difference with the national standard .Results The range of red blood cells had no statistical difference compared with national standard in different age and gender groups(P>0 .05) .The ranges of white blood cell count and hemoglobin had significant differences compared with the national standard only in the neonatal group(P<0 .05) .The range of platelet count had significant difference compared with the na-tional standard in all age and gender groups(P<0 .05) in the northeast area of sichuan .Conclusion There are significant differ-ences between the partial routine blood value in the northeast area of Sichuan and the current reference range ,and might influence the clinical judgment of abnormal results .
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Objective To probe into the change regulation before and after treatment every snake bite patients for the routine blood test and serum hs‐CRP .Methods The study objects were selected in the hospitalized patients for clear diagnosis belong to what kind of snakes in the past two years .The indexes of routine blood test and serum hs‐CRP were determined before and after treatment various periods in these patients .The test results were made to statistical analysis according to kind of snakes ,periods and disease condition .Results WBC was obvious .rise before treatment only the viper snake bite patients .WBC was all significant .rise after treatment first day and second day for 5 kinds snake bite patients (P<0 .01) .This index had all reduced trend after treatment fourth day but determined value was still high in contrast to the normal reference scope .RBC and HGB all were normal level and had not obvious change before and after treatment for 5 kinds snake bite patients .PLT was reduced before treatment for the trime‐resurus gramineus bite patients ,before and after treatment for the viper snake bite patients (P<0 .05) .The hs‐CRP content was higher before treatment for the viper snake bite patients and was highest after treatment for the cobra snake bite patients ,the inter‐comparison had significant difference (P<0 .05) .Conclusion 5 kinds snake bite patients before and after treatment not basely ane‐mia symptom .But most of the patients appear the inflammatory response .PLT decrease is more serious for the trimeresurus grami‐neus bite patients ,and for the viper snake bite patients especially .
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Objective To study the blood routine tests results change after therapy of chlorpromazine ,clozapine ,perphenazine changed to risperidone in schizophrenic patients .Methods 100 schizophrenic patients in the hospital from March 2014 to March 2015 for treatment were enrolled in the study ,who were treated with chlorpromazine ,clozapine or perphenazine respectively for one course ,and then the therapies were replace by risperdal .Results After treatment ,mean corpuscular volume was significantly grea‐ter ,the number of lymphocytes was significantly higher and intermediate cell number was significantly lower than that before treat‐ment ,the difference was statistically significant(P<0 .05) .Conclusion Leukocyte differentiation change and mean corpuscular vol‐ume increased obviously after therapy of chlorpromazine ,clozapine or perphenazine changed to risperidone in schizophrenic patients .
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Objective To determine normal reference ranges for venous blood count among children aging from 1 year old to 12 years old.Methods These normal reference ranges were defined in a population of 526 healthy children who had no blood system diseases,allergic diseases,respiratory system diseases,urinary system diseases,digestive system disease,rheumatoid disease,thyroid disease,parasitic infections,malignancies and genetic disease,etc.Values of white blood cell count (WBC),red blood cell count (RBC),hemoglobin (Hb)concentration,red blood cell specific volume (Hct),mean corpusular volume(MCV),mean cell hemoglo-bin (MCH),mean corpuscular hemoglobin(MCHC),platelet (PLT),percentage of neutrophil (NE%),percentage of lymphocyte (LY%),percentage of mononuclear cells (MO%),percentage of acidophilic granulocyte (EOS%).Statistical analysis was done on various parameters that we recorded,and then for every parameter,we could get the various reference ranges for different age groups.Results The subjects were divided into 4 groups based on age.Besides the parameters of WBC count and classification of WBC,the rest of parameters were proved to be of no statistical difference between 4 groups..After an integration of the values,we could get the results as follows:RBC(4.02-5.2)×10 1 2/L,HGB 108-144 g/L,Hct 35.2%-40.4%,MCV 74.6-89.9 fL,MCH 20.9-34.7 pg,MCHC 332- 340 g/L,PLT(157 - 409 )× 10 9/L.WBC count did not have statistical difference between the age group 6-<9 and 9-12,but did have between the rest groups.After an integration of the values of WBC count,it could be conclu-ded that WBC count of age group1-<3 was(4.88-13.38)×10 9/L,that of age group 3-<6 was(4.26-1 1.6)×10 9/L and that of age group 6-12 was (4.24-10.24)×10 9/L.WBC classification results were various in different age groups.The values showed as follows:age group 1-<3 NE:29%-32%,LY:58%-61%;age group 3 -<6 NE:43%-46%,LY:43%-46%;age group 6-<9NE:49%-52%,LY:38%-40%;age group 9 to 12NE:5 1% - 58%,LY:33% - 39%.Conclusion WBC classification re-sults and WBC count do have statistical difference in different age groups.Besides the parameters of WBC count and classification of WBC,the rest of parameters are proved to be of no statistically difference in different age groups.The values of WBC count decrea-ses as the age increases.From WBC classification results,the most apparent fact is that the percentage of neutrophil increases as the age increases but the percentage of lymphocyte is just the contrary.As mentioned above,we suggest that we should establish a spe-cific whole blood count normal reference range for each age group during our laboratory testing work.
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Objective To investigate the changes and clinical significance of routine blood test in infants with rotavirus enteritis.Methods The white blood cell count (WBC),the platelet parameters (PLT),the platelet volume (MPV)and the platelet distribution width (PDW)were detected by automatic blood cell analyzer respectively in 314 infants with rotavirus enteritis before and after the therapy for 5 -7 days.The C -reactive protein (CRP)was also detected,then made comparison with the normal control group (40 cases).Results The WBC (10.77 ±4.20)× 109 /L,PLT(330.02 ±117.70)×109 /L,MPV(8.46 ±2.15)fL in the infants with rotavirus enteritis were higher than the WBC(7.69 ±2.06)×109 /L,PLT(298.45 ±57.19)×109 /L and MPV(7.52 ±0.85)fL in the control group before the therapy.The differences were statistically significant (t value =4.569,1.670,2.746,P =0.000, 0.000 and 0.047).The WBC(7.76 ±2.83)×109 /L and CRP(5.18 ±5.82)mg/L in the infants with rotavirus enteritis after the therapy were lower than the WBC(10.77 ±4.20)×109 /L and CRP(7.70 ±11.28)mg/L before the therapy(t value =9.794 and 2.810,P =0.000).Conclusion The WBC,PLT and CRP in infants with rotavirus enteritis were usually higher.But the raise of WBC and CRP could not be the only indication of using antibiotic in infants suffered from diarrhea.
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Objective To establish the reference interval of 3-14 years old children in Nanhai district of Foshan city .Methods 2 032 cases of 3-14 years old healthy children were detected and analyzed using MINDRAY BC-5800 automatic blood cell analy-zer .The levels of WBC ,RBC ,Hb ,PLT ,Hct ,MCV ,MCH ,MCHC ,RDW were analyzed .Results The levels of WBC ,RBC ,Hb , PLT ,Hct ,MCV ,MCH ,MCHC ,RDW in 2 031 cases were non normal distribution .The levels of Hb ,Hct had no statistical signifi-cance between male children and female children (P>0 .05);The levels of WBC ,RBC ,PLT ,MCV ,MCH ,MCHC ,RDW had statis-tical significance between male children and female children (P<0 .05) .Conclusion It is very important to establish the reference interval of 3-14 years old children in Nanhai district of Foshan city .