Publications by authors named "Jin Feng Qiu"

Background: The adult granulosa cell tumor of the testis is a rare sex-cord/stromal tumor, with a potentiality for late recurrence and metastasis. Because of its rarity, this tumor is poorly understood, particularly in terms of its molecular features. As a result, it is necessary to register each occurrence in order to study the evolution of this rare malignancy and develop therapeutic strategies.

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Objective: To explore the key sites in which L-arginine affects the expression of human coagulation factor VIII gene, and to create new drug targets for the treatment of hemophilia.

Methods: A total of 5 human FVIII genes (A1, A2, A3, C1 and C2) with B domain deletion were transfected into human umbilical vein endothelial cells (HUVECs) as promoters. Run-on assay and ELISA analysis were performed to observe the driving effect of each domain gene on chloramphenicol acetyl transferase (CAT) gene transcription and expression, and the effect of L-arginine on each promoter.

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Article Synopsis
  • - The study aimed to understand the interactions and genetic factors behind hereditary deficiencies in coagulation factors FXI, FXII, and protein S (PS) within a Chinese family.
  • - Researchers used various methods, including coagulation tests, ELISA, and gene sequencing, to identify specific genetic alterations in the FXI, FXII, and PS genes among family members.
  • - Despite the genetic deficiencies, none of the family members experienced bleeding or thrombosis, suggesting a potential balance between coagulation and anticoagulation factors, or that the mutations might have only partial effects.
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Background: Adult chronic immune thrombocytopenia (chronic ITP) is a common autoimmune hemorrhagic disease characterized by decreased platelet production and increased platelet destruction, leading to thrombocytopenia. In this study, Ca, calnexin (CNX) and calreticulin (CRT) within platelets from adult patients with chronic ITP were investigated.

Methods: Platelets were isolated from blood specimen collected from 20 adult patients with chronic ITP and 20 healthy volunteers.

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Article Synopsis
  • The study aimed to assess how dyslipidemia (abnormal lipid levels) affects immune responses by measuring lymphocyte subsets in patients.
  • Using flow cytometry, researchers identified various lymphocyte populations, discovering significant increases in certain types of T cells and B cells among dyslipidemic patients compared to healthy controls.
  • The findings suggest that dyslipidemia may alter immune profiles, potentially leading to immune dysfunction, with a notable positive correlation between certain T cell types and high cholesterol levels.
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Acute myelomagakaryocytic leukemia is a diagnostic and therapeutic challenge owing to its heterogeneity and overlapping features with other types of acute leukemia. In order to build a diagnostic profile, we analyzed the biological, clinical and hematologic characteristics of acute myelomagakaryocytic leukemia. We found that, in three patients diagnosed with acute myelomagakaryocytic leukemia, there were two types of leukemia cells.

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Adult chronic idiopathic thrombocytopenic purpura (cITP) is a chronic and usually life-long haemorrhagic disorder in which enhanced platelet destruction and weakened platelet production lead to thrombocytopenia. Platelets were isolated from blood samples collected from 40 adult patients with cITP and 40 healthy volunteers. Mitochondrial membrane potential (ΔΨm) and plasma membrane phosphatidylserine externalization were determined by flow cytometry, and activation of caspase-3 and expressions of Bax, Bak and Bcl-xL were analysed by western blotting.

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To observe the differences in proteins between adult patients with chronic immune thrombocytopenic purpura (ITP) and healthy adults. 30 patients with chronic ITP and 30 healthy controls were enrolled into the study. The platelet total protein was extracted from peripheral venous blood of 10 chronic ITP patients and 10 healthy controls respectively, and subjected to two-dimensional electrophoresis (2-DE) to find the differential protein spot between chronic ITP patients and healthy controls, then the differential protein spots were identified by mass spectrometry.

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Objective: In order to inquire into the pathogenesis of increased platelet counts in peripheral blood of patients with iron deficiency anemia (IDA), the phenomenon of thrombocytosis was confirmed, and then the expression of tubulin within platelets from IDA patients was investigated.

Methods: Peripheral blood samples were collected from 79 patients with IDA and were divided into 2 groups, group of IDA with normal platelet counts (34 cases), and group of IDA with increased platelet counts (thrombocytosis) (45 cases). Additionally, 45 peripheral blood samples from healthy volunteers were enrolled as a group of healthy controls.

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Luteolin (Lu) is one of the flavonoids with anticancer activity, but its poor water solubility limits its use clinically. In this work, we used monomethoxy poly(ethylene glycol)-poly(e-caprolactone) (MPEG-PCL) micelles to encapsulate Lu by a self-assembly method, creating a water-soluble Lu/MPEG-PCL micelle. These micelles had a mean particle size of 38.

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