1.Analysis of adverse events signaling of lurasidone by Open Vigil FDA2.1
Yu-Qing CHEN ; Zhan-Zhang WANG ; Xiu-Qing ZHU ; Ye YANG ; Li-Jing DAI ; Hao-Yang LU ; E-Mei SONG ; Yu-Guan WEN
The Chinese Journal of Clinical Pharmacology 2024;40(17):2567-2571
Objective To investigate the occurrence of adverse events of lurasidone in the U.S.Food and Drug Administration Adverse Event Reporting System(FAERS)database by using Open Vigil FDA2.1,to enrich the experience and provide the basis for the clinical use of the drug in China.Methods Using Open Vigil FDA2.1,adverse event data were extracted from the FAERS database for a total of 51 quarters from the 4th quarter of 2010 to the 3rd quarter of 2023,and the ratio of reporting ratio(ROR)method and the proportional reporting ratio(PRR)method were used for data mining and analysis.Results A total of 32 728 adverse event reports with lurasidone as the first suspected drug was obtained,with a larger proportion of females(54.26%)and occurring mostly in adults(18 to 59 years).After the screening,326 preferred term(PT)signals were obtained,involving 20 system-organ classifications(injury,poisoning and procedural complications,general disorders and administration site conditions,psychiatric disorders,etc.).Among them,PTs with the higher frequency of occurrence included off label use,feeling abnormal,crying,anxiety,depression,insomnia,etc.PTs with stronger signal strength included activation syndrome,mania,tongue movement disturbance,hypoprolactinaemia,akathisia,etc.Multiple new suspected adverse drug reactions were unearthed,including hypoprolactinaemia,emotional poverty,stiff tongue,etc.Conclusion Lurasidone has a favorable safety profile,and women need to closely monitor prolactin levels when taking this medication.The drug is relatively safe for use in pregnant,puerperal and perinatal women and patients with poor metabolic function.Hypoprolactinaemia and restless leg syndrome are new rare suspected adverse events with lurasidone.
2.Clinical Study on the Relationship between Gene Mutation Profile and Prognosis in Pediatric Acute Lymphocyte Leukemia.
Yan CHEN ; Shan-Shan QI ; Li-Li DING ; Yu DU ; Na SONG ; Zhuo WANG ; Li YANG ; Ming SUN ; Hao XIONG
Journal of Experimental Hematology 2023;31(1):17-24
OBJECTIVE:
To analyze the gene mutation profile in children with acute lymphocyte leukemia (ALL) and to explore its prognostic significance.
METHODS:
Clinical data of 249 primary pediatric ALL patients diagnosed and treated in the Department of Hematological Oncology of Wuhan Children's Hospital from January 2018 to December 2021 were analyzed retrospectively. Next-generation sequencing (NGS) was used to obtain gene mutation data and analyze the correlation between it and the prognosis of children with ALL.
RESULTS:
227 (91.2%) were B-ALL, 22 (8.8%) were T-ALL among the 249 cases, and 178 (71.5%) were found to have gene mutations, of which 85 (34.1%) had ≥3 gene mutations. NRAS(23.7%), KRAS (22.9%),FLT3(11.2%), PTPN11(8.8%), CREBBP (7.2%), NOTCH1(6.4%) were the most frequently mutated genes, the mutations of KRAS, FLT3, PTPN11, CREBBP were mainly found in B-ALL, the mutations of NOTCH1 and FBXW7 were mainly found in T-ALL. The gene mutation incidence of T-ALL was significantly higher than that of B-ALL (χ2= 5.573,P<0.05) and were more likely to have co-mutations (P<0.05). The predicted 4-year EFS rate (47.9% vs 88.5%, P<0.001) and OS rate (53.8% vs 94.1%, P<0.001) in children with tp53 mutations were significantly lower than those of patients without tp53 mutations. Patients with NOTCH1 mutations had higher initial white blood cell count (128.64×109/L vs 8.23×109/L,P<0.001), and children with NOTCH1 mutations had a lower 4-year EFS rate than those of without mutations (71.5% vs 87.2%, P=0.037).
CONCLUSION
Genetic mutations are prevalent in childhood ALL and mutations in tp53 and NOTCH1 are strong predictors of adverse outcomes in childhood ALL, with NGS contributing to the discovery of genetic mutations and timely adjustment of treatment regimens.
Child
;
Humans
;
Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/genetics*
;
Cell Cycle Proteins/genetics*
;
Proto-Oncogene Proteins p21(ras)/genetics*
;
Retrospective Studies
;
Ubiquitin-Protein Ligases/genetics*
;
Prognosis
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics*
;
Precursor B-Cell Lymphoblastic Leukemia-Lymphoma
;
Mutation
;
Lymphocytes
3.Research Progress of Allogeneic Hematopoietic Stem Sell Trans-plantation in the Treatment of Adult Hemophagocytic Lympho-histiocytosis --Review.
Song-Tao TU ; Yu-Lan ZHOU ; Fei LI
Journal of Experimental Hematology 2023;31(1):301-305
Hemophagocytic lymphohistiocytosis (HLH) is a life-threatening hyperinflammatory clinical syndrome of uncontrolled immune response which results in hypercytokinemia due to underlying primary or secondary immune defect. Allogeneic hematopoietic stem cell transplantation (allo-HSCT) remains the only cure therapy for primary HLH and recurrent/refractory hemophagocytic lymphohistiocytosis. Compared with children HLH, adult HLH is a much more heterogeneous syndrome requiring a more individualized protocol depending on the underlying trigger, disease severity and genetic background. At present, there remain controversies in various aspects including indications of haematopoietic cell transplantation (HCT), conditioning regimen, efficacy and prognosis. This article will review the recent advances of allo-HSCT in the treatment of adult HLH based on the above issues.
Child
;
Humans
;
Adult
;
Lymphohistiocytosis, Hemophagocytic/therapy*
;
Hematopoietic Stem Cell Transplantation
;
Transplantation Conditioning/methods*
4.Knock-down of ROCK2 gene improves cognitive function and reduces neuronal apoptosis in AD mice by promoting mitochondrial fusion and inhibiting its division.
Minfang GUO ; Huiyu ZHANG ; Peijun ZHANG ; Jingwen YU ; Tao MENG ; Suyao LI ; Lijuan SONG ; Zhi CHAI ; Jiezhong YU ; Cungen MA
Chinese Journal of Cellular and Molecular Immunology 2023;39(8):701-707
Objective To explore the effect of knocking down Rho-associated coiled-coil kinase (ROCK2) gene on the cognitive function of amyloid precursor protein/presenilin-1 (APP/PS1) double transgenic mice and its mechanism. Methods APP/PS1 double transgenic mice were randomly divided into AD model group (AD group), ROCK2 gene knock-down group (shROCK2 group), ROCK2 gene knock-down control group (shNCgroup), and wild-type C57BL/6 mice of the same age served as the wild-type control (WT group). Morris water maze and Y maze were employed to test the cognitive function of mice. Neuron morphology was detected by Nissl staining. Immunofluorescence histochemical staining was used to detect the expression of phosphorylated dynamin-related protein 1 (p-Drp1) and mitochondrial fusion 1 (Mfn1). Western blot analysis was used to detect the expression ROCK2, cleaved-caspase-3 (c-caspase-3), B-cell lymphoma 2 (Bcl2), Bcl2-related protein X (BAX), p-Drp1, mitochondrial fission 1 (Fis1), optic atrophy 1 (OPA1), Mfn1 and Mfn2. Results Compared with AD group mice, the expression of ROCK2 in shROCK2 group mice was significantly reduced; the cognitive function was significantly improved with the number of neurons in the hippocampal CA3 and DG areas increasing, and nissl bodies were deeply stained; the expression of c-caspase-3 and BAX was decreased, while the expression of Bcl2 was increased; the expression of mitochondrial division related proteins p-Drp1 and Fis1 were decreased, while the expression of mitochondrial fusion-related proteins OPA1, Mfn1 and Mfn2 were increased. Conclusion Knock-down of ROCK2 gene can significantly improve the cognitive function and inhibit the apoptosis of nerve cells of APP/PS1 mice. The mechanism may be related to promoting mitochondrial fusion and inhibiting its division.
Animals
;
Mice
;
Alzheimer Disease/pathology*
;
Amyloid beta-Peptides/metabolism*
;
Amyloid beta-Protein Precursor
;
Apoptosis/genetics*
;
bcl-2-Associated X Protein
;
Caspase 3
;
Cognition
;
Disease Models, Animal
;
Mice, Inbred C57BL
;
Mice, Transgenic
;
Mitochondrial Dynamics/genetics*
5.The application of PCR-SSP with the serology in identification and genotyping of ABO ambiguous blood group.
Yanyan SONG ; Yuxi ZHANG ; Xinrui CAO ; Xiaonan YU ; Wei ZHENG
Chinese Journal of Cellular and Molecular Immunology 2023;39(9):824-827
Objective To investigate the effect of blood group serology and polymerase chain reaction with sequence-specific primers (PCR-SSP) on identification and genotyping of ambiguous ABO blood group. Methods Eighty suspicious ABO blood group samples were identified by serology and polymerase chain reaction with sequence-specific primers (PCR-SSP). The final blood group type and the strategy of the transfusion of each case were determined according to the results of serology and PCR-SSP. Results 40 cases were confirmed to be subtypes, and the remaining 40 cases were normal types with weakened antigens or missing antibodies due to other reasons. The results of molecular genetic blood group typing based on PCR-SSP were 41 cases of subtypes (There were 3 discrepancies between two methods: one was Ael identified by serological methods, while its gene type was O2O2; one was common type O, while its gene type was BO1; one was type A, while its gene type was AB.) and 39 cases of normal ones. Conclusion Genotyping technology combined with serological typing has an important significance in identification of ABO blood groups.
ABO Blood-Group System/genetics*
;
Genotype
;
Polymerase Chain Reaction
;
Antibodies
;
DNA Primers
6.Advances in Diagnosis and Treatment of Transplant-Associated Thrombotic Microangiopathy --Review.
Yu-Ke GENG ; Tao WANG ; Zhi-Qiang SONG ; Jian-Min YANG
Journal of Experimental Hematology 2023;31(2):602-606
Transplantation-associated thrombotic microangiopathy (TA-TMA) is one of the serious complications mostly occurring within 100 days after hematopoietic stem cell transplantation (HSCT). Risk factors of TA-TMA include genetic predispositions, GVHD, and infections. The pathophysiological mechanisms of TA-TMA start with endothelial injury caused by complement activation, which leads to microvascular thrombosis, and microvascular hemolysis, ultimately resulting in multi-organ dysfunction. In recent years, the development of complement inhibitors has markedly improved the prognosis of TA-TMA patients. This review will give an update on risk factors, clinical manifestations, diagnosis, and treatment of TA-TMA, so as to provide references for clinical practice.
Humans
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Thrombotic Microangiopathies/therapy*
;
Prognosis
;
Thrombosis/etiology*
;
Risk Factors
;
Hematopoietic Stem Cell Transplantation/adverse effects*
7.Influence of Pre-treatment Lymphocyte/Monocyte Ratio and Neutrophil/Lymphocyte Ratio on the Prognosis of Patients with Extranodal NK/T-Cell Lymphoma.
Xiao-Yu DENG ; Ying-Yi WANG ; Qian-Qian DANG ; Tian-Song LIANG ; Ying-Juan ZHENG ; Dao-Ke YANG
Journal of Experimental Hematology 2023;31(3):707-713
OBJECTIVE:
To explore the influence of lymphocyte-to-monocyte ratio (LMR) and neutrophil-to-lymphocyte ratio (NLR) on the prognosis of patients with extranodal NK/T cell lymphoma (ENKTL).
METHODS:
The clinical data of 203 patients with ENKTL admitted to the First Affiliated Hospital of Zhengzhou University from January 2011 to January 2020 were retrospectively analyzed. The ROC curve determined the limit values of LMR and NLR; Categorical variables were compared using a chi-square test, expressed as frequency and percentage (n,%). Continuous variables were expressed as medians and extremes and compared with the Mann-Whitney U test; Progression-free survival (PFS) and overall survival (OS) of different grouped LMR and NLR patients were analyzed using Kaplan-Meier curves and compared with log-rank tests. The COX proportional risk regression model was used to perform one-factor and multi-factor analysis of PFS and OS.
RESULTS:
The optimal critical values of LMR and NLR were determined by the ROC curve, which were 2.60 and 3.40, respectively. LMR≤2.60 was more likely to occur in patients with bone marrow invasion (P=0.029) and higher LDH (P=0.036), while NLR≥3.40 was more likely to occur in patients with higher ECOG scores (P=0.002), higher LDH (P=0.008), higher blood glucose (P=0.024), and lower PLT (P=0.010). Kaplan-Meier survival analysis showed that PFS and OS of patients in the high LMR group were significantly better than the low LMR group, while PFS and OS in the low NLR group were significantly better than the high NLR group. The results of multivariate COX analysis showed that EBV-DNA positive (P=0.047), LMR≤2.60 (P=0.014), NLR≥3.40 (P=0.023) were independent risk factors affecting PFS in patients with ENKTL. LMR≤2.60 (P<0.001), NLR≥3.40 (P=0.048), and high β2-MG (P=0.013) were independent risk factors affecting OS in patients with ENKTL.
CONCLUSION
Low LMR and high NLR before treatment are associated with poor prognosis in patients with ENKTL, which also can be used as an easily testable, inexpensive, and practical prognostic indicator in the clinic.
Humans
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Monocytes/pathology*
;
Neutrophils
;
Lymphoma, Extranodal NK-T-Cell/pathology*
;
Retrospective Studies
;
Lymphocytes
;
Prognosis
8.Additional risk factors associated with thrombosis and pregnancy morbidity in a unique cohort of antiphospholipid antibody-positive patients.
Chun LI ; Yu ZUO ; Song ZHANG ; Una E MAKRIS ; David R KARP ; Zhanguo LI
Chinese Medical Journal 2022;135(6):658-664
BACKGROUND:
Antiphospholipid syndrome (APS) is an autoimmune prothrombotic condition with significant morbidity. The objective of this study was to identify additional clinical and epidemiological risks of arterial thrombosis, venous thrombosis, and pregnancy morbidities in a large cohort of persistent antiphospholipid antibodies (aPLs)-positive carriers.
METHODS:
This was a cross-sectional cohort study of 453 consecutive patients with a documented positive aPL who attended Peking University People's Hospital. Among 453 patients screened, 297 patients had persistent positive aPL. We compared asymptomatic aPL carriers with thrombotic and obstetric APS patients. And the univariate analysis and multivariable logistic regression were used to evaluate the association between different risk factors and APS clinical manifestations. The levels of circulating markers of neutrophil extracellular traps (NETs) (cell-free DNA and citrullinated histone H3 [Cit-H3]) were assessed and compared among aPL-positive carriers with or without autoimmune disease and APS patients.
RESULTS:
Additional risk factors associated with arterial thrombosis among aPL-positive carriers included: smoking (odds ratio [OR] = 6.137, 95% confidence interval [CI] = 2.408-15.637, P = 0.0001), hypertension (OR = 2.368, 95% CI = 1.249-4.491, P = 0.008), and the presence of underlying autoimmune disease (OR = 4.401, 95% CI = 2.387-8.113, P < 0.001). Additional risks associated with venous thrombosis among aPL carriers included: smoking (OR = 4.594, 95% CI = 1.681-12.553, P = 0.029) and the presence of underlying autoimmune disease (OR = 6.330, 95% CI = 3.355-11.940, P < 0.001). The presence of underlying autoimmune disease (OR = 3.301, 95% CI = 1.407-7.744, P = 0.006) is the additional risk, which demonstrated a significant association with APS pregnancy morbidity. Higher circulating levels of cell-free DNA and Cit-H3 were observed among APS patients and aPL patients with autoimmune diseases compared with those aPL carriers without underlying autoimmune diseases. Furthermore, control neutrophils that are conditioned with APS patients'sera have more pronounced NET release compared with those treated with aPL carriers'sera without underlying autoimmune diseases.
CONCLUSIONS
We identified several potential additional risk factors for APS clinical manifestations among a large cohort of Chinese aPL carriers. Our data may help physicians to risk stratify aPL-positive Asian patients.
Antibodies, Antiphospholipid
;
Antiphospholipid Syndrome/complications*
;
Autoimmune Diseases
;
Cell-Free Nucleic Acids
;
Cohort Studies
;
Cross-Sectional Studies
;
Female
;
Humans
;
Morbidity
;
Pregnancy
;
Risk Factors
;
Thrombosis/etiology*
9.Efficacy and Safety of Cladribine-based Intensified Conditioning Regimen in Hematopoietic Stem Cell Transplantation in Patients with High-Risk Acute Myeloid Leukemia.
Wan-Ying PAN ; Ke-Xin LI ; Hui-Yang WU ; Ying-Zhi HE ; Jing-Wen DU ; Ya-Ling ZHENG ; San-Fang TU ; Chao-Yang SONG ; Yu-Hua LI ; Yu-Xian HUANG
Journal of Experimental Hematology 2022;30(1):65-71
OBJECTIVE:
To investigate the efficacy, safety and the risk factors affecting prognosis of high-risk acute myeloid leukemia (AML) patients treated by cladribine-based intensified conditioning regimen.
METHODS:
The clinical data of 28 patients with high-risk AML treated by cladribine in combination with busulfan plus cyclophosphamide (BuCy) intensified conditioning regimen before allogeneic hematopoietic stem cell transplantation (allo-HSCT) in Zhujiang Hospital, Southern Medical University from October 2016 to June 2020 were analyzed retrospectively. The overall survival (OS) rate, cumulative progression-free survival (PFS) rate, relapse rate, non-relapse mortality (NRM), regimen related toxicity (RRT) and risk factors affecting prognosis of the patients were analyzed.
RESULTS:
The 1-year OS and PFS of the patients after implantation was (78.8±8.6)% and (79.8±8.1)%, while the 1-year cumulative relapse rate and NRM of the patients was 9.3% and 22.0%, respectively. The 1-year expected OS of MRD- high-risk patients before HSCT was 100%. The 1-year expected OS and PFS of the patients in pre-transplant relapse group was (46.9±18.7)% and (50.0±17.7)%, respectively. The incidence of I/II grade RRT was 39.3%. NO III/IV grade RRT were found in 28 patients. Multivariate analysis showed that pre-transplant relapse was the independent risk factor affecting OS and PFS of the patients.
CONCLUSION
The intensified conditioning regimen of cladribine in combination with BuCy can reduce the relapse rate of high-risk AML transplantation, and its RRT is mild, exhibiting good safety. MRD- high-risk patients before HSCT can achieve better transplant benefits, but the prognosis of patients with relapse before transplantation is not significantly improved. Therefore, for non-relapsed high-risk AML patients, this intensified conditioning regimen deserves to be considered.
Busulfan
;
Cladribine
;
Graft vs Host Disease
;
Hematopoietic Stem Cell Transplantation
;
Humans
;
Leukemia, Myeloid, Acute/therapy*
;
Retrospective Studies
;
Transplantation Conditioning
10.Study on Thalassemia in Han Population in Sanya of Hainan Province.
Yuan-Yuan XU ; Meng LI ; Lin-Xun GUAN ; Song-He XIANG ; Long-Can CHENG ; Yu-Hui YANG ; Xiao-Ning GAO ; Hong-Mei NING
Journal of Experimental Hematology 2022;30(1):232-236
OBJECTIVE:
To study the distribution characteristics of thalassemia genotype in Han Population in Sanya of Hainan Province.
METHODS:
Gap PCR and reverse dot hybridization were used to detect and analyze the thalassemia gene in 572 suspected thalassemia carriers of Han Population in Sanya.
RESULTS:
Among the 572 Han Population in Sanya, 271 cases of thalassemia gene abnormality were detected, among which 161 cases were founded to be carriers of α-thalassemia gene. A total of 9 genotypes were detected, in the following order of the detection rate was --SEA/αα,-α3.7/αα,-α4.2/αα,--SEA/-α3.7,--SEA/-α4.2,-α4.2/-α4.2,-α3.7/-α4.2,-α3.7/-α3.7,--SEA/--SEA. Among them, the deletion type (--SEA/αα) in southeast Asia was the most common, accounting for 66 cases. 99 cases of β-thalassemia were detected, there were 7 genotypes, all of which were heterozygous. The order of the detection rate was CD41-42/βN, IVS-II-654/βN, CD17/βN, CD71-72/βN, -28/βN, -29/βN, CD27-28/βN. Among them, CD41-42/βN was the most common, accounting for 51 cases. In addition, 11 cases of combined α and β thalassemia were detected. Five kinds of genotypes were checked out, the order of detection rate was -α3.7/αα composite CD41-42/βN, --SEA/αα composite IVS-II-654/βN, -α4.2/-α4.2 composite CD41-42/βN, -α4.2/αα composite -29/βN , --SEA/ -α4.2 composite CD41-42/βN.
CONCLUSION
Han Population in Sanya of Hainan Province is a high-risk population of thalassemia, the genotype characteristics are different from other areas with high incidence of thalassemia in China. The main type of α-thalassemia is the deficiency mutation of southeast Asia, while CD41-42 heterozygous mutation is the main type of β-thalassemia.
China/epidemiology*
;
Genotype
;
Heterozygote
;
Humans
;
Mutation
;
alpha-Thalassemia/genetics*
;
beta-Thalassemia

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