ABSTRACT
Objective:To explore the clinical effect of dermal and subcutaneous injection of autologous peripheral blood nucleated cells in improving periocular wrinkles.Methods:Eighteen cases of beauty seekers who planned to improve periocular wrinkles were selected as the research objects of this study. Autologous nucleated cells and blood active components were isolated and purified by negative collection mixed method and evenly injected into the periocular skin of patients. VISIA image analysis system, and satisfactory score were used to detect and evaluate the related characteristics of periocular skin at different stages before and after treatment. The scores were compared and analyzed, and the complications after treatment were recorded.Results:The 18 patients were followed up. The score of VISIA periorbital static wrinkles decreased from (22.09±8.21) before treatment to (18.31±7.84) one month after treatment, and the difference was statistically significant ( t=-7.495, P<0.05). 17 patients were satisfied; After 3 months of follow-up, 15 cases were satisfied. The texture, consistency and pore state of periorbital skin were improved in some patients (10 cases). Conclusions:Autologous peripheral blood nucleated cell therapy can improve periorbital wrinkles, especially skin fine lines, and geta high satisfactory rate. There are almost no adverse reactions after the treatment, which is worthy of clinical application.
ABSTRACT
Objective:To evaluate the screening efficacy of AI for bone marrow cell morphology.Method:Bone marrow specimens of patients attending the Second Hospital of Hebei Medical University from December 1,2019 to December 21,2020;(1) Selected from one hundred bone marrow specimens, The cases included chronic myeloid cell leukemia ( n=23), myelodysplastic syndrome ( n=4), chronic lymphocytic leukemia ( n=4), multiple myeloma ( n=5), 7 acute leukemia ( n=7), chronic anemia ( n=32), infection ( n=6) and healthy control ( n=15). Including 45 males and 55 females, with age 52(37,66)years old.The bone marrow smear prepared with Wright-Giemsa, The AI analysis system and manual audit were applied to classify 13 types of bone marrow nucleated cell, taking the results of manual audit as the gold standard, comparing the difference between the results of the two methods, using statistical software to draw the confusion matrix, The compliance between the manual audit results and the pre-classification results of the AI analysis system was calculated by the Kappa consistency test method; The consistency analysis between the pre-classification results of AI and those of the manual microscopic examination was performed by the Pearson test; (2)Statistics analyzed the blast cell differential count differences of AI and manual microscopy, to evaluate the clinical application value of AI analysis system, which soured from thirty bone marrow samples of patients diagnosed with MDS and AML. Results:76 630 images of 13 nucleated cells were obtained by AI analysis system; the weighted average experimental diagnostic efficiency parameters of 13 types of bone marrow nucleated cells, are as follows: sensitivity(%)=95.82, specificity(%)=99.19, accuracy(%)=98.89, false positive rate(%)=0.81, false negative rate (%)=4.18; the correlation results, between the pre-classification results of AI and manual microscopic classification results,showed that blast cell, promyelocytes, neutrophilic myelocyte, neutrophilic metamyelocyte, band neutrophil, segmented neutrophi,eosinophil, basophil, polychromatic erythroblast, orthochromatic erythroblast, and lymphocytes have good positive correlation ( r>0.70,all P<0.001), while basophilic erythroblast and monocytes have no obvious correlation ( r=0.32,0.30, all P> 0.001); the count results of the blast cells in bone marrow smears of MDS and AML, got by AI and manual microscopy respectively, showed that the average percentage of blast cells was 8.19% by AI and 8.68% by manual microscopy in MDS, there was no significant difference between the two methods ( P>0.05); the average percentage of blast cells was 48.52% by AI analysis system and 53.77% by manual microscopy in AML, and although there was a significant difference in blast cell count ( P<0.01), coincidence the classification diagnostic criteria for AML (blast cells ≥ 20%). Conclusion:The AI analysis system performed good sensitivity, specificity and accuracy for 13 types of bone marrow nucleated cells, which showed potential application value for the rapid classification and diagnosis of MDS and AML.
ABSTRACT
OBJECTIVE： To study the improvement effects of Shenshao yiqi yangxue granule on experimental aplastic anemia （AA） in mice and the preventive and therapeutic effects of it on myelosuppressive in mice. METHODS： Totally 72 mice were randomly divided into blank group （normal saline）， model group （normal saline）， positive control group （Yixuesheng capsule， 0.625 g/kg in content）， Shenshao yiqi yangxue granule low-dose， medium-dose and high-dose groups （1.26， 7.56， 15.12 g/kg by crude drug）， with 12 mice in each group. Except for blank group， other groups were given 60Co-γ irradiation combined with intraperitoneal injection of CTX to induce AA model. After modeling， they were given relevant medicine intragastrically once a day， for consecutive 7 d. After 6 days of administration， the mice were placed on a treadmill for exhaustion test， and the exhaustion distance and exhaustion time were measured. After 7 days of administration， the changes of peripheral blood （the number of RBC， WBC， PLT and content of HGB） were determined of mice in each group. The percentage of reticulocyte （Ret） was measured after blood smear， and the number of bone marrow nucleated cells （BMNC） was determined after bone marrow smear. Another 90 mice were collected， grouped and given relevant medicine as above， with 15 mice in each group. They were relevant medicine intragastrically once a day， for consecutive 12 d. After 3 days of administration， except for blank group， other groups were given 5-fluorouracil intraperitoneally to induce the bone marrow suppression model at the beginning of medication. After medication， peripheral hemogram， Ret and the number of BMNC were determined in each group. RESULTS： Compared with blank group， the exhaustion distance and exhaustion time of AA model group were significantly decreased （P＜0.01）， while the number of RBC， WBC， PLT and content of HGB， Ret and the number of BMNC were decreased significantly （P＜0.05 or P＜0.01）. Compared with model group， the exhaustion distance and exhaustion time of positive control group and Shenshao yiqi yangxue granule medium-dose and high-dose groups were increased significantly （P＜0.05 or P＜0.01）； the peripheral hemogram indicators， Ret and the number of BMNC were increased significantly in positive control group and Shenshao yiqi yangxue granule high-dose group， and Ret of Shenshao yiqi yangxue granule medium-dose group was increased significantly （P＜0.05 or P＜0.01）. In bone marrow suppression model， compared with blank group， the number of WBC， RBC and PLT， Ret， the number of BMNC were decreased significantly in model group （P＜0.05 or P＜0.01）. Compared with model group， the number of WBC， RBC and PLT， Ret and the number of BMNC in peripheral blood were increased significantly in positive control group and Shenshao yiqi yangxue granule high-dose group， and the number of RBC， Ret and the number of BMNC were increased significantly in Shenshao yiqi yangxue granule medium-dose group （P＜0.05 or P＜0.01）. CONCLUSIONS： Shenshao yiqi yangxue granule has certain improvement effects on AA in mice， and can prevent and treat myelosuppression in mice.
ABSTRACT
Objective To verify and evaluate the clinical performance of LD BC-Ⅰ blood cell image automatic analyzer.Methods A total of 202 EDTA-Na2 anticoagulant blood specimens were collected at the hospital clinic randomly between October and December 2016.After wright staining,each specimen was examined by microscopy and automatic analyzer respectively,the detection efficiency and the results of nuclear cells classification were compared between artificial microscopy and automatic analyzer,the correlation and consistency of two methods were further analyzed.Results The average time required for each specimen of the automatic analyzer was reduced by 3.81 minutes when compared with artificial microscopy,the P values was less than 0.01.LD BC-Ⅰ agreed 71.4％,64.8％,28.8％,21.1％ and 71.6％ respectively for pre-differentiation of the blast cells,promyelocytes,myelocyte,metamyelocytes and atypical lymphocytes.The diagnosis accordance rates of five nucleated cells above increased to 87.7％,81.5％,38.1％,26.3％ and 86.2％ after manual review.Passing Bablok regression analysis found that the correlation coefficient (r) of two methods of neutrophils was 0.981,lympho kjcytes (r =0.894),monocytes (r=0.725),eosinophils (r=0.772),and there were significant correlation between two methods (all P ＜0.01).Bland-Altman analysis found that the coincidence rate of the neutrophils and lymphocytes were 96％,the monocytes were 91％ and the eosinophils were 94％.Conclusion The LD BC-Ⅰ automatic blood cell image analyzer could significantly improve the analysis efficiency of the nucleated cells.There was good consistency in the classification results of mature granulocytes,monocytes and lymphocytes between instrumental detection and artificial microscopy.The method has certain clinical value to be applied widely.
ABSTRACT
Objective: To study the effect of phosphate esterification polysaccharides from Tremella fuciformis (PEPTF) on hematopoietic function in radiation-injured mice. Methods: Rats were randomly divided into six groups: control, model, polysaccharides from T. fuciformis (10 mg/kg) positive control, low-, mid-, and high-PEPTF (10, 30, and 60 mg/kg) groups. Before irradiated with 137Cs γ-ray, rats were ip administered once daily for 3 d. On the day 7 after irradiation, the rats were sacrificed. Colony-forming unit of spleen, number of nucleated cells in bone marrow, number of white blood cells, spleen index, and thymus index were used as observation indexes to investigate the effect of PEPTF on hematopoietic function of mice. Results: Compared with the model group, the number of the nucleated cells in bone marrow, the number of white blood cells, spleen index, and thymus index of mice increased markedly. Conclusion: PEPTF have the protective effect on the hematopoietic function of radiation-injured mice.
ABSTRACT
Homing-associated cell adhesion molecules (H-CAM) on the CD34+ cells play an important role for the engraftment process following hematopoietic stem cell transplantation (HSCT). However, it seems that not only CD34+ cells but also other nucleated cells (NCs) with H-CAM could be implicated in the engraftment process and the proliferation of hematopoietic stem cells. We investigated the differences of HCAM and cell cycle status on the NCs in cord blood (CB), bone marrow (BM), and mobilized peripheral blood (PB). The proportions of CXCR4+ cells within the NC populations were greater in CB than in PB or BM (p=0.0493), although the proportions of CXCR4+, CD44+, and CD49d+ cells within the CB CD34+ cell populations were same within BM or PB. A lower proportion of CD34+CD49d+ cells within the CD34+ cell populations was more noted in CB than in PB or BM (p=0.0085). There were no differences in cell cycle status between CB and BM or PB. Our results suggest that the migrating potential of CB would be enhanced with increased CXCR4 expression on the NCs, but the adhesion potential of CB CD34+ cells would be less than that of PB and BM. These findings may help explain why the lower cell dose is required and engraftment is delayed in cord blood stem cell transplantation.