1.Update of the diagnosis and treatment of intravascular large B-cell lymphoma
Journal of Medical Postgraduates 2004;0(02):-
Intravascular large B-cell lymphoma(IVLBCL) is a rare form of diffuse LBCL characterized by preferential intravascular growth of malignant lymphocytes,aggressive behavior,and an often fatal course.It displays some differences in clinical presentation among diverse geographical areas.The immunophenotype plays a critical role in diagnosis and differential diagnosis.Recent therapeutic approaches,such as the rituximab plus CHOP regimen,could have a positive impact in IVLBCL patients.The use of high-dose chemotherapy supported by autologous stem-cell transplantation may improve current outcomes.
2.Recent progress in the study of the relationship between brain natriuretic peptide and cardiac function
Journal of Medical Postgraduates 2003;0(03):-
Brain natriuretic peptide(BNP) emerges as another cardiac hormone after atrial natriuretic peptide (ANP). It plays a prominent role in natriuresis, diuresis, vasorelaxation and decreasing blood pressure. The plasma levels of BNP are closely related to the left ventricular function. In this review, the author highlights the latest progress of BNP in the diagnosis, risk stratification, prognosis and therapeutic monitoring of patients with congestive heart failure and other cardiac dysfunction.
3.Recent progress in study of the pathogeneses and physiopathologic mechanisms of diabetic cardiomyopathy
Journal of Medical Postgraduates 2003;0(10):-
Diabetic cardiomyopathy is a type of specific cardiomyopathy which be relevant to metabolic derangement of diabetes mellitus. The exact mechanism is still questionable and has been the focus of much interest and debate in the cardiovascular domain . In this review, we aim to summarize the update advances of its pathogeneses and physiopathologic mechanisms at the histological, molecular and cytologic levels.
4.The diagnostic value of plasma NPS in patients of type 2 diabetes mellitus with diastolic heart failure
Yitian CHEN ; Shisen JIANG ; Ruiji XU ; Chen HUANG
Journal of Medical Postgraduates 2004;0(01):-
Objective: To determine the diagnostic value of the concentration of plasma BNP and ANP in patients of type 2 diabetes mellitus with diastolic heart failure(DHF). Methods:12 healthy subjects and 71 diabetic patients were selected into the study. Left ventricular ejection fraction(LVEF) ,mitral annular early diastole (E) and late diastole (A) inflow velocities were measured with Doppler echocardiography .According to the result of ratio of E to A, the DHF patients were subdivided into DHF 1 group:0.8 ≤ E/A
5.The diagnostic value of plasma BNP and ANP in patients with type 2 diabetes mellitus and diastolic heart failure
Yitian CHEN ; Shisen JIANG ; Ruiji XU ; Cheng HUANG
Chinese Journal of Endocrinology and Metabolism 2001;0(05):-
Twelve healthysubjects and 71 diabetic patients, including 47 cases with diastolic heart failure (DHF), were enrolled into the study. Plasma atrial natiuretic peptide (ANP) and brain natriuretic peptide (BNP) were measured with immunoradiometric assay. The result showed that the plasma levels of ANP and BNP were significantly increased in accordance withthe severity of DHF. The ratio of E/A had significantly negative correlation with the plasma levels of BNP(r=-0.669,P
6.Plasma brain natriuretic peptide and atria natriuretic peptide as predictors for diastolic heart failure in patients with type 2 diabetes mellitus
Yitian CHEN ; Tingsong LIU ; Shisen JIANG ; Ruiji XU ; Cheng HUANG
Journal of Geriatric Cardiology 2009;6(4):227-229
Objective To study the change of diastolic cardiac function in diabetic patients and to determine the diagnostic value of plasma brain natriuretic peptide (BNP) and atria natriuretic peptide (ANP) for diastolic heart failure in patients with type 2 diabetes mellitus.Methods Twelve healthy subjects and seventy-one diabetic patients were included in the study.Plasma BNP and ANP were measured with immunoradiometic assay.Results Plasma levels ofBNP andANP increased significantly with increased severity of diastolic heart dysfunction.The ratio of E/A had significant negative correlation with the plasma levels of BNP (r=0.669,P<0.001) and ANP (r=0.579,P<0.01).AUC of ANP and BNP in ROC model was 91.9% and 65.3%,respectively.Conclusions The plasma level of BNP might be a valuable predictor for differential diagnosis of diastolic cardiac function in diabetic patients.
7.Judgment about myocardial function with plasma BNP in patients with noninsulin-dependent diabetes mellitus
Yitian CHEN ; Shisen JIANG ; Ruiji XU ; Cheng HUANG ;
Journal of Medical Postgraduates 2003;0(05):-
Objective:To study the alteration of cardiac function in diabetic patients and evaluate the relationship between cardiac function and BNP. Methods:83 diabetic patients and 12 healthy subjects were selected into the study. Left ventricular ejection fraction(LVEF) and mitral annular early diastole (E) and late diastole (A) inflow velocities were measured with echocardiography. Plasma BNP were measured with Immnoradiometic assay(IRMA)? Results:According to the result of the echocardiography, the diabetics who have no primary cardiac diseases were subdivided into normal cardiac function group( n =24,28.9%),diastolic dysfunction group( n =47,56.7%), systolic dysfunction group( n =6,7.2%), both diastolic and systolic dysfunction group( n =6,7.2%). More than half of diabetic patients have diastolic dysfunction. The plasma level of BNP had significant negative correlation with LVEF( r = -0.614, P
8.Clinical value of dynamic noninvasive monitoring technique after operation for traumatic brain injury
Xinghu QIN ; Yitian CHEN ; Hong XU ; Liang LIU ; Yuqiu CHEN ; Ligang CHEN ; Yong JIANG
Chinese Journal of Trauma 2017;33(8):719-723
Objective To investigate the clinical value of noninvasive monitoring technique in intracranial hemorrhage and secondary brain edema after operation for traumatic brain injury (TBI).Methods A retrospective case-series analysis was done on 196 TBI patients (128 males and 68 females,aged 18-60 years old,median age 36.5 years old) admitted from January 2014 to December 2015 and treated surgically with simultaneous implantation of intracranial pressure (ICP) probe.There were 89 patients with Glasgow coma score (GCS) 6-8 points and 107 with GCS 9-12 points.The values of ICP were recorded.The changes of cerebral electrical impedance (CEI) were monitored in all patients through the BORN-BE noninvasive monitor.Results The disturbance factor of the BORN-BE noninvasive monitor in brain edema in the cerebral stage exhibited a strongly positive correlation with ICP (R =0.954,R2 =0.910,P < 0.05).All the rebleeding occurred within 24 hours after operation in the study.The disturbance factor showed a significant reduction in the bleeding side,which exhibited a strongly negative correlation with the volume of cerebral hemorrhage (R =-0.982,R2 =0.964,P < 0.05).Conclusion After operation for TBI,the ICE changes from dynamic noninvasive monitor can reflect the severity of brain edema digitally,indicating that the postoperative rebleeding and its volume may play an important role in selection of optimal treatment.
9.The mechanism of the role of ABC transporters in the multi-drug resistance of SP cells in SPC-A1 cell lines
Yanliang ZHU ; Longbang CHEN ; Jinghua WANG ; Xiaoyuan CHU ; Yitian CHEN ; Qun ZHANG
Journal of Medical Postgraduates 2003;0(07):-
Objective: Recent researches suggest that tumors are organized in a hierarchy of heterogeneous cell populations and that the capability of maintaining tumor formation/growth specifically resides in a small population of cells called cancer stem cells(CSCs).CSCs are resistant to traditional cancer chemotherapy and radiation therapy because they highly express ATP-binding cassette(ABC) drug transporters and are relatively quiescent,with higher DNA repair and anti-apoptosis abilities.The purpose of this study is to investigate the relationship of ABC transporters with the multi-drug resistance and cancer stem cells of SPC-A1 cell lines.Methods: On the basis of Docetaxel-resistant cell line-SPC-A1/ Docetaxel,we compared the content and biological characteristics of SP cells,the expression of ABC transporters and its effect on the multi-resistance to Docetaxel between SPC-A1 and SPC-A1/ Docetaxel cell lines.Results: SP cells existed in both the SPC-A1 and the SPC-A1/ Docetaxel cell line,with a higher content in the latter.P-gp and BCRP obviously expressed in the SPC-A1/ Docetaxel and SPC-A1/ Docetaxel-SP cells,but only the expression of BCRP was increased in SPC-A1-SP cells.SPC-A1-SP cells also showed obviously higher abilities of proliferation,cloning and tumor formation than SPC-A1/ Docetaxel-SP cells.The multi-drug resistance of SPC-A1/ Docetaxel cells could be reversed with verapamil,but their resistance to Docetaxel could not be reversed completely with the same concentration of the drug.Conclusion: BCRP plays a major role in separating SP cells with tumor stem cell traits and its expression counts for the multi-drug resistance of SPC-A1-SP cells.
10.Parametric optimization of electroacupuncture against bone-cancer pain in rats and its intervention on mRNA expression of opioid receptor and precursor.
Junying DU ; Junfan FANG ; Yitian CHEN ; Saifei WU ; Yi LIANG ; Jianqiao FANG
Chinese Acupuncture & Moxibustion 2015;35(2):161-168
OBJECTIVETo observe the intervention of electroacupuncture (EA) with different current frequencies and treatment frequencies on pain thresholt in rats with bone-cancer pain, so as to optimize treatment parameters of EA against bone cancer pain; and by measuring gene expression of opioid receptor and precursor in different tissues to preliminarily explore the possible mechanism of EA against bone cancer pain.
METHODSNinety healthy female SD rats were randomly divided into a control group, a model group, EA groups (6 subgroups according to different frequencies) and a sham EA group, ten rats in each one. Rats in the control group were injected with 10 µL of amicrobic phosphate buffer solution (PBS) into tibial cavity; rats in the remaining groups were injected with Walker 256 cancer cells to establish model of bone-cancer pain. No treatment was given to rats in the control group and model group; rats in the EA groups were treated with EA at bilateral "Housanli" (ST 36) and "Genduan" with 3 different current frequencies (2 Hz, 100 Hz and 2 Hz/100 Hz), once a day and once every other day, 30 min per treatment (1mA for 15 min, 2 mA for 15 min); rats in the sham EA group were treated with identical acupoints as the EA group, but the acupoints were needled subcutaneously and EA was connected with power off. All the treatment was given for 14 days. Dynamic plantar aesthesiometer was applied to measure the paw withdrawal thresholds (PWTs) of the affected side before the model establishment, 6d, 8d, 10d, 12d, 14d, 16d, 18d, and 20d after model establishment. The mRNA expressions of µ-opioid receptor (MOR), κ-opioid receptor (KOR), δ-opioid receptor (DOR), proopiomelanocortin (POMC) and prodynorphin (PDYN) in dorsal root ganglion (DRG) and lumbar spinal cord dorsal horn (SCDH) of L4-L6 of the affected side were detected by PCR method.
RESULTSThere were no differences in PWTs among all groups before model establishment (P>0. 05). Each time point after model establishment, PWTs in model group were obviously lower than those in the control group (all P<0. 01). Compared with the model group, PWTs in each EA subgroup were all increased (all P<0.05), but the differences at different time points were not significant among EA subgroups (P>0.05). The mRNA expressions of MOR, KOR, POMC, and PDYN in L4-L6 DRG in the 2 Hz/100 Hz II group were significantly higher than those in model group (P<0. 05, P<0. 01), while the mRNA expressions of MOR, KOR, DOR, POMC and PDYN in SCDH were not different compared with the model group (P>0. 05).
CONCLUSIONEA treatment has obvious analgesic effect on bone-cancer pain, however, its effect is not related with current frequency and treating frequency. EA against bone-cancer pain may be related with increasing the mRNA expression of some peripheral opioid receptors and precursor.
Acupuncture Analgesia ; instrumentation ; methods ; Acupuncture Points ; Animals ; Bone Neoplasms ; complications ; Electroacupuncture ; instrumentation ; methods ; Enkephalins ; metabolism ; Female ; Ganglia, Spinal ; metabolism ; Humans ; Pain ; etiology ; genetics ; metabolism ; Pain Management ; instrumentation ; methods ; Protein Precursors ; metabolism ; Rats ; Rats, Sprague-Dawley ; Receptors, Opioid ; genetics ; metabolism