1.Preliminary analysis for the relationship between pathological findings and clinical manifestation in 22 cases died from infantile pneumonia
Journal of Clinical Pediatrics 2001;(1):16-17
To explore the relationship between pathological findings and clinical manifestation, pathological and clinical data were collected and analyzed in 22 cases died from infantial pneumonia, and inference study were undertaken based on the theory of airway hydrokinetics (AHK).The results showed that all 22 cases suffered from airway obstruction. 2 of 5 cases with aspiration pneumonia were confirmed to have inhaled meconium, other 3 cases were probably correlated to gastro-esophageal reflux (GER).Among 17 cases with primary pneumonia, myocardial damage was observed in 14 cases, cerebral neural degeneration in 10,hepatic damage in 13 and renal damage in 9, respectively. Pathological changes were significantly correlated with the results of X-rays and blood-gas analysis.It is concluded that big changes of AHK can be induced by pneumonia, and should be pay attention to the features of the laminar flow and the eddy flow in the airway during the clinical treatment of infantial pneumonia.
2.Impact of Immunonutrition in Organ Transplantation
Sangzhu CIREN ; Zhengxia WANG ; Hui ZHANG ; Xiaoli CHEN
Chinese Journal of Bases and Clinics in General Surgery 2003;0(02):-
Objective To investigate the impact of immunonutrition in organ transplantation.Methods The literatures of recent years on the studies of immunonutrition in organ transplantation were reviewed. Results Immunonutrition including ?-3 fatty acid and special amino acids etc could reduce inflamation and supress immunal response following organ transplantation markably. Conclusion Application of immunonutrition associated with immunosupress could take the place of traditional steroids completely in the treatment following organ transplantation, even shorten clinical course of immunosupress.
3.Expression of MIP-1? and RANTES gene and protein in the bronchus of murine asthma
Weixi ZHANG ; Changchong LI ; Xiaoming CHENG ; Xiaofang CHEN ; Xiaohong CAI ; Lin DONG ; Rongxi WU ; Zhengxia ZHANG
Chinese Journal of Pathophysiology 1989;0(05):-
AIM: To study the role of the gene and protein expression of MIP-1? and RANTES in the bronchus of murine asthma. METHODS: 20 male BALB/C mice were randomly divided into two groups: the control group (A 0 group) and asthma group (B 0 group). In the experiment, the mice model of asthma was established by the ovalbumin (OVA) challenge methods. The protein expression of MIP-1? and RANTES were detected by immunohistochemistry methods. The gene expressions of MIP-1? and RANTES were detected by in situ hybridization methods. RESULTS: Immunohistochemistry showed that the expressions of MIP-1? protein and RANTES protein around the bronchus of group B 0 were significantly higher than those of group A 0 (P
4.The Application of Multi-slice Spiral CT Angiography in Pulmonary Lesions
Xihui WANG ; Hongqiang XUE ; Zhengxia WU ; Tao CHEN ; Yu XI ; Wei ZHANG
Journal of Practical Radiology 2000;0(12):-
Objective To study the applied value of multi-slice spiral CT(MSCT)in pulmonary lesions.Methods 68 cases with massive hemoptysis caused by lung tumor or other reasons underwent 16-slice spiral CT scan including plain and contrast-enhanced scan.Volume reconstruction(VR),multiplanar reconstruction(MPR),maximum intensity projection(MIP)and curved planar reconstruction(CPR)were performed using original images.The origin,number and shape of vessels feeding lesions were observed.Results Among 68 cases(two failed),the blood supply of pulmonary lesions was from bronchial artery in 60 cases,from the intercostals artery in 8 cases,from the internal thoracic artery in 5 cases,from the left subclavian artery in 6 cases,from the right inferoir phrenic artery in 5 cases,from the celiac trunk artery in 3 case and from the right renal artery in 1 case.The blood supply was from single artery in 50 cases,double arteriae in 10 cases and three arteriae in 6 cases.The supply arteriae were vascular plexus in 55 cases,meandering in 8 cases,net in 2 cases and aneurysm formation in one cases.Conclusion MSCT can clearly display the vessels feeding pulmonary lesions.
5.Clinical significance of PDGFRβ gene testing in hematological tumors.
Mengqiao GUO ; Fangyu GUO ; Yan ZHANG ; Hui CHENG ; Gusheng TANG ; Zhengxia HUANG ; Shenglan GONG
Chinese Journal of Medical Genetics 2023;40(11):1334-1339
OBJECTIVE:
To explore the clinical and laboratory characteristics of hematological tumors with different types of abnormalities in platelet derived growth factor β (PDGFRβ) gene.
METHODS:
A retrospective analysis was carried out on 141 patients with abnormal long arm of chromosome 5 (5q) and comprehensive medical history data from Changhai Hospital Affiliated to Naval Medical University from 2009 to 2020, and their clinical data were collected. R-banding technique was used for chromosomal karyotyping analysis for the patient's bone marrow, and fluorescence in situ hybridization (FISH) was used to detect the PDGFRβ gene. The results of detection were divided into the amplification group, deletion group, and translocation group based on FISH signals. The three sets of data column crosstabs were statistically analyzed, and if the sample size was n >= 40 and the expected frequency T for each cell was >= 5, a Pearson test was used to compare the three groups of data. If N < 40 and any of the expected frequency T for each cell was < 5, a Fisher's exact test is used. Should there be a difference in the comparison results between the three sets of data, a Bonferroni method was further used to compare the data.
RESULTS:
In total 98 patients were detected to have PDGFRβ gene abnormalities with the PDGFRβ probe, which yielded a detection rate of 69.50% (98/141). Among these, 38 cases (38.78%) had PDGFRβ gene amplifications, 57 cases (58.16%) had deletions, and 3 (3.06%) had translocations. Among the 98 cases, 93 were found to have complex karyotypes, including 37 cases from the amplification group (97.37%, 37/38), 55 cases from the deletion group (96.49%, 55/57), and 1 case from the translocation group (33.33%, 1/3). Analysis of three sets of clinical data showed no significant gender preponderance in the groups (P > 0.05). The PDGFRβ deletion group was mainly associated with myeloid tumors, such as acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS) (P < 0.001). The PDGFRβ amplification group was more common in lymphoid tumors, such as multiple myeloma (MM) (P < 0.001). The PDGFRβ translocation group was also more common in myelodysplastic/myeloproliferative tumors (MDS/MPN).
CONCLUSION
Tumors with PDGFRβ gene rearrangement may exhibit excessive proliferation of myeloproliferative tumors (MPN) and pathological hematopoietic changes in the MDS, and have typical clinical and hematological characteristics. As a relatively rare type of hematological tumor, in addition to previously described myeloid tumors such as MPN or MDS/MPN, it may also cover lymphoid/plasma cell tumors such as multiple myeloma and non-Hodgkin's lymphoma.
Humans
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Clinical Relevance
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Hematologic Neoplasms/genetics*
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In Situ Hybridization, Fluorescence
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Multiple Myeloma
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Myelodysplastic Syndromes
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Retrospective Studies
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Translocation, Genetic
6.Design, synthesis and pharmacological evaluation of 4-(3-chloro-4-(3-cyclopropylthioureido)-2-fluorophenoxy)-7-methoxyquinoline-6-carboxamide (WXFL-152): a novel triple angiokinase inhibitor for cancer therapy.
Yuqin YAO ; Zhuowei LIU ; Manyu ZHAO ; Zhengxia CHEN ; Peng LI ; Yang ZHANG ; Yuxi WANG ; Chengjian ZHAO ; Chaofeng LONG ; Xiaoxin CHEN ; Jinliang YANG
Acta Pharmaceutica Sinica B 2020;10(8):1453-1475
Angiokinases, such as vascular endothelial-, fibroblast- and platelet-derived growth factor receptors (VEGFRs, FGFRs and PDGFRs) play crucial roles in tumor angiogenesis. Anti-angiogenesis therapy using multi-angiokinase inhibitor has achieved great success in recent years. In this study, we presented the design, synthesis, target identification, molecular mechanism, pharmacodynamics (PD) and pharmacokinetics (PK) research of a novel triple-angiokinase inhibitor WXFL-152. WXFL-152, identified from a series of 4-oxyquinoline derivatives based on a structure-activity relationship study, inhibited the proliferation of vascular endothelial cells (ECs) and pericytes by blocking the angiokinase signals VEGF/VEGFR2, FGF/FGFRs and PDGF/PDGFR simultaneously . Significant anticancer effects of WXFL-152 were confirmed in multiple preclinical tumor xenograft models, including a patient-derived tumor xenograft (PDX) model. Pharmacokinetic studies of WXFL-152 demonstrated high favourable bioavailability with single-dose and continuous multi-dose by oral administration in rats and beagles. In conclusion, WXFL-152, which is currently in phase Ib clinical trials, is a novel and effective triple-angiokinase inhibitor with clear PD and PK in tumor therapy.