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Yang L, Ma CY, Fu LH, Tai SF, Ma MZ, Zhong XL, Fan B, Wang XX, Wang DQ, Yu Y. [Platelet Transfusion Strategies for MASPAT-Matched Platelet Transfusion Failed Patient with Allogeneic Hematopoietic Stem Cell Transplantation]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2023; 31:850-854. [PMID: 37356950 DOI: 10.19746/j.cnki.issn.1009-2137.2023.03.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
OBJECTIVE To investigate the causes of ineffectiveness of platelet transfusion with monoclonal antibody solid phase platelet antibody test (MASPAT) matching in patients with allogeneic hematopoietic stem cell transplantation and explore the strategies of platelet transfusion. METHODS A case of donor-specific HLA antibodies (DSA) induced by transfusion which ultimately resulted in transplantation failure and ineffective platelet transfusion with MASPAT matching was selected, and the causes of ineffective platelet transfusion and platelet transfusion strategy were retrospectively analyzed. RESULTS The 32-year-old female patient was diagnosed as acute myeloid leukemia (high risk) in another hospital with the main symptoms of fever and leukopenia, who should be admitted for hematopoietic stem cell transplantation after remission by chemotherapy. In the course of chemotherapy, DSA was generated due to platelet transfusion, and had HLA gene loci incompatible with the donor of the first transplant, leading to the failure of the first transplant. The patient received platelet transfusion for several times before and after transplantation, and the results showed that the effective rate of MASPAT matched platelet transfusion was only 35.3%. Further analysis showed that the reason for the ineffective platelet transfusion was due to the missed detection of antibodies by MASPAT method. During the second hematopoietic stem cell transplantation, the DSA-negative donor was selected, and the matching platelets but ineffective transfusion during the primary transplantation were avoided. Finally, the patient was successfully transplanted and discharged from hospital. CONCLUSIONS DSA can cause graft failure or render the graft ineffective. For the platelet transfusion of patients with DSA, the platelet transfusion strategy with matching type only using MASPAT method will miss the detection of antibodies, resulting in invalid platelet transfusion.
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Affiliation(s)
- Lu Yang
- Medical School of Chinese PLA; Department of Transfusion Medicine, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - Chun-Ya Ma
- Department of Transfusion Medicine, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - Li-Hui Fu
- Department of Transfusion Medicine, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - Sheng-Fei Tai
- Department of Transfusion Medicine, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - Ming-Zi Ma
- Medical School of Chinese PLA; Department of Transfusion Medicine, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - Xiao-Long Zhong
- Department of Transfusion Medicine, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - Bin Fan
- Department of Transfusion Medicine, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - Xiao-Xing Wang
- Department of Transfusion Medicine, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - De-Qing Wang
- Department of Transfusion Medicine, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China.E-mail:
| | - Yang Yu
- Department of Transfusion Medicine, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China.E-mail:
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Zhong XL, Yang L, Zhang J, Sun LP, Ma MZ, Fan B, Shang W, Huang YS, Wang DQ. [Preliminary Study on Screening and Identification of Lewis a Antigen Mimic Epitope in Alpaca Phage Display Nanobody Library]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2022; 30:877-883. [PMID: 35680821 DOI: 10.19746/j.cnki.issn.1009-2137.2022.03.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To establish a new method for synthesizing Lewis blood group antigens, that is, the mimotopes of Lewis blood group antigens were screened by using an alpaca phage display nanobody library. METHODS We selected mimotopes of the Lewis a (lea) antigen by affinity panning of an alpaca phage display nanobody library using a monoclonal anti-lea antibody. Enzyme-linked immunosorbent assay (ELISA) was used to test the affinity of the positive clones for the monoclonal anti-lea antibody, and the high-affinity positive clones were selected for sequencing and synthesis. Finally, the sensitivity, specificity and reactivity of the synthesized lea mimotope in clinical samples were verified by ELISA. RESULTS A total of 96 phage clones were randomly selected, and 24 were positive. Fourteen positive clones with the highest affinity were selected for sequencing. The result showed that there were 5 different sequences, among which 3 sequences with the highest frequency, largest difference and highest affinity were selected for expression and synthesis. The sensitivity and specificity of lea mimic antigen by ELISA showed that, the minimum detection limit of gel microcolumn assay (GMA) and ELISA method were 25 times different, and the lea mimic antigen had no cross reacted with the other five unrelated monoclonal antibodies(P<0.001). Finally, 30 clinical plasma samples were analyzed. The mean absorbance of the 15 positive plasma samples was significantly higher than that of the 15 negative plasma samples (P=0.02). However, the positive signal values of the clinical samples were much lower than those of the monoclonal antibodies. CONCLUSION A new method of screening lea mimic antigen by using alpaca phage nanoantibody library has been established, which is expected to realize the screening of lea mimotopes, thus realizing the application of high-sensitivity detection methods such as ELISA and chemiluminescence in blood group antibody identification.
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Affiliation(s)
- Xiao-Long Zhong
- Department of Blood Transfusion, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China
| | - Lu Yang
- Department of Transfusion Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Jie Zhang
- Department of Blood Transfusion, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China
| | - Li-Ping Sun
- Department of Transfusion Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Ming-Zi Ma
- Department of Transfusion Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Bin Fan
- Department of Blood Transfusion, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China
| | - Wei Shang
- Department of Transfusion Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Yuan-Shuai Huang
- Department of Blood Transfusion, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China,E-mail:
| | - De-Qing Wang
- Department of Transfusion Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China,E-mail:
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Ma MZ, Zeng Y, Shang W, Liang XX, Yang L, Zhong XL, Sun LP, Wang DQ, Tao L, Yu Y. [A Novel Lyophilized PRP-Loaded Gel Based on Chitosan and PEG with Hemostatic and Antibacterial Properties]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2022; 30:870-876. [PMID: 35680820 DOI: 10.19746/j.cnki.issn.1009-2137.2022.03.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE A dynamic gel loaded with lyophilized platelet-rich plasma-chitosan/difunctionalized polyethylene glycol (LPRP-CP) was prepared to investigate its hemostatic antibacterial and promoting wound healing of scald wounds through in vitro and in vivo experiments. METHODS In this study, normal gauze/blank tablet (Ctrl), LPRP-CP, Chitosan HUCHUANG Powder(Chito P)and ChitoGauze XP PRO group (Chito G group) were set. The hemostatic effect and promoting healing effect of the four groups of materials were evaluated by establishing rabbit ear artery hemorrhage model and superficial Ⅱ° scalded model of skin on the back. The hemostatic time and bleeding amount were calculated and the gross and histological results of scald healing were observed. The antibacterial effect of the four groups of materials was evaluated by antibacterial test in vitro. RESULTS In the rabbit ear arterial hemorrhage model, the hemostasis of all materials was successful. The hemostatic time of Ctrl, Chito P, LPRP-CP and Chito G groups was 213.33±38.30, 118.33±24.01, 115.00±8.37 and 111.67±11.69 s, respectively. The blood loss was 1233.83±992.27, 346.67±176.00, 193.33±121.47 and 147.50±80.66 mg, respectively. Compared with Ctrl, the hemostasis time of LPRP-CP, Chito P and Chito G group was significantly shorter (P<0.001), and the amount of blood loss of LPRP-CP and Chito G group was decreased (P<0.05). Compared with LPRP-CP, there were no significant differences in hemostatic time and blood loss between Chito P and Chito G group (P>0.05). In the model of superficial Ⅱ° scalded on the back of rabbit, the wound healing rate of LPRP-CP was faster than that of the other three groups at the same time, and the healing effect was perfect. In the antibacterial test in vitro, only LPRP-CP had better anti-S. aureus effect, and all groups had no anti-E. coli effect. CONCLUSION LPRP-CP is an excellent hemostatic material for superficial wounds, and has certain antibacterial and wound healing effects, which has a wide academic value and research prospects.
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Affiliation(s)
- Ming-Zi Ma
- Medical school of Chinese PLA, Beijing 100853, China;Department of Blood Transfusion, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Yuan Zeng
- The Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry Tsinghua University, Beijing 100084, China
| | - Wei Shang
- Medical school of Chinese PLA, Beijing 100853, China;Department of Blood Transfusion, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Xiao-Xing Liang
- Department of Blood Transfusion, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China;School of Laboratory Medicine, Bengbu Medical College, Bengbu 233030, Anhui Province, China
| | - Lu Yang
- Medical school of Chinese PLA, Beijing 100853, China;Department of Blood Transfusion, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Xiao-Long Zhong
- Department of Blood Transfusion, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China;Department of Blood Transfusion, Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China
| | - Li-Ping Sun
- Department of Blood Transfusion, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - De-Qing Wang
- Department of Blood Transfusion, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Lei Tao
- The Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry Tsinghua University, Beijing 100084, China,E-mail:
| | - Yang Yu
- Department of Blood Transfusion, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China,E-mail:
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Dai LY, Niu GY, Ma MZ. Microstructure Evolution and Nanotribological Properties of Different Heat-Treated AISI 420 Stainless Steels after Proton Irradiation. Materials (Basel) 2019; 12:ma12111736. [PMID: 31142043 PMCID: PMC6601053 DOI: 10.3390/ma12111736] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 05/24/2019] [Accepted: 05/27/2019] [Indexed: 11/30/2022]
Abstract
In this paper, low-energy proton irradiation experiments with different cumulative fluences were performed on samples of AISI 420 stainless steel that were either annealed or tempered at 600 or 700 °C. The effects of the cumulative proton irradiation fluence on the evolution of the microstructure of AISI 420 were studied by transmission electron microscopy (TEM). Scratch tests were performed using a Tribo Indenter nanomechanical tester, in order to investigate the effects of the cumulative fluence on the tribological properties of the AISI 420 stainless steel. The results indicate that the dislocation density of the microstructure near the surface of the AISI 420 stainless steel increases with higher cumulative proton irradiation fluences. Under the same load, the nanoscale friction coefficient and wear rate both decreased with increasing cumulative proton irradiation fluence. This indicates that the surface hardening effect induced by proton irradiation can diminish the nanoscale friction coefficient and wear rate.
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Affiliation(s)
- L Y Dai
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China.
| | - G Y Niu
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China.
- Labthink Instruments Co. Ltd., Jinan 250031, China.
| | - M Z Ma
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China.
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Natapoff JN, Qiao J, Shao WL, Feng ZY, Xu H, Jiang YZ, Ma MZ, Li XY, Cao YB, Jiang H, Ye Q, Monahan S. Pain as a mutual experience for patients, nurses and families: a perspective from Shanghai, China. J Cult Divers 2000; 7:11-3. [PMID: 11013524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
The author of this article visited China for the purpose of helping the faculty of the School of Nursing learn research skills by participating in research--a kind of learn by doing. Both investigators had conducted quantitative studies in the US--one with children and one with adults--that were adapted for use in China. Seeking to also include a qualitative study, the investigators explored several possible research areas. Because pain is a universal phenomena, it was chosen as the subject for the study using the qualitative methodology reported in the first part of this article.
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Affiliation(s)
- J N Natapoff
- Hunter-Bellevue School of Nursing, Hunter College of City University of New York, USA
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Ma MZ, Yao BY. Progress in indirubin treatment of chronic myelocytic leukemia. J TRADIT CHIN MED 1983; 3:245-8. [PMID: 6355667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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