1.Study of the Cerebellar Hypothalamic Pathways in the Pathogenesis of Post-stroke Depression
Xiao KANG ; Rubo SUI ; Lei ZHANG ; Heji MA
Journal of China Medical University 2015;(5):389-393,399
Objective To preliminarily proved that the cerebellar hypothalamic pathways regulate inflammatory cytokines involved in post?stroke depression(post?stroke depression,PSD). Methods 160 male(Sprague?Dawley,SD)rats were randomly divided into sham operation group,the stroke group,PSD group,kainic acid(kainic acid,KA)damage of cerebellar fastigial nucleus group,electrical damaged decussation of superior cer?ebellar peduncle(superior cerebellar peduncle,xSCP)group. The behavioral observation were observed and expression of IL?1βand TNF?αin hip?pocampus by immunohistochemistry. Results Compared with the sham operation group and stroke group,PSD group,TNF?α,IL?1βcontent signif?icantly increased;and the factor of rats with KA group and xSCP group expression consistent with PSD group,there was no significant difference among the three groups. Conclusion The cerebellar fastigial nuclear may through the cerebellar hypothalamic pathways regulate inflammatory cyto?kines and participate in post stroke depression.
2.StudyofDWIpredictingtheefficacyofneoadjuvantchemotherapyindifferentmolecularsubtypesofbreastcancer
Journal of Practical Radiology 2019;35(5):747-751
Objective ToinvestigatethevalueoftheADCandtherelativeADC(rADC)ofDWIparameterstopredictthefinal pathologicalresponseintheearlystageofneoadjuvantchemotherapy(NAC)fordifferentmolecularsubtypesofbreastcancer.Methods TheresultsoftwoDWI(beforeNACandwithinoneweekaftersecondcycleofNAC)in116patientsenrolledinthestudywere retrospectivelyanalyzed.Theminimum ADCandrADCofthelesionsweremeasuredandrecorded,andtheirratesofchangeaftersecond cycle(ADC%、rADC%)werecalculated.Molecularsubtypeswererecordedaccordingtotheresultsofpreoperativeimmunohistochemistry, andpatientsweredividedintomajorhistologicalresponse(MHR)groupandnon-majorhistologicalresponse(NMHR)groupaccording topostoperativepathologicalgradingcriteriaofMiller&Payne.Results TherewasnocorrelationbetweentheADCbeforeNACand thefinalpathologicalresponseofeachsubtype.AftersecondcycleofNAC,exceptforLuminalA,ADCandADC%hadtheabilityof predictingfinalpathologicalresponsesfortheremainingsubtypes,especiallyinthehighestefficacyofADC%forthetriple-negative. BeforeNAC,rADChadpredictiveefficacyforLuminlBandHER2-enrichedsubtypes;aftersecondcycleofNAC,therADCdiffered onlybetweenthedifferentpathologicalresponsegroupsofHER2-enrichedandthetriple-negative,andthediagnosticefficacy was limited.TherADC%hadpredictiveefficacyonlyinthetriple-negativegroup.Conclusion ADChasnopredictiveefficacyforeach subtypebeforeNAC;WhiletherADCbeforeNAC,everyDWIparametersafter2ndcycleofNAC,andtheirchangeshavecertainvalues toevaluatethefinalpathologicalresponseofthecorrespondingpartialsubtypesofbreastcancer.
3. Expressions of coordinated stimulating molecular programmed death 1 and its ligand 1 in brain glioma and their clinical significances
Jianhong LI ; Lili MA ; Lina ZHANG
Cancer Research and Clinic 2020;32(1):32-35
Objective:
To analyze the expressions of coordinated stimulating molecular programmed death 1(PD-1) and programmed death ligand 1 (PD-L1) in human glioma and their clinical significances.
Methods:
A total of 70 postoperative paraffin specimens of brain glioma and 35 normal brain tissues in Heji Hospital Affiliated to Changzhi Medical College from January 2013 to December 2017 were collected. The expressions of PD-1 and PD-L1 in 70 glioma tissues and 35 normal brain tissues were detected by immunohistochemical SP method. The relationship between the expressions of PD-1 and PD-L1 and their correlation with the clinicopathological features were analyzed.
Results:
The positive expression rates of PD-1 and PD-L1 in glioma tissues were 69% (48/70) and 62% (43/70), respectively, which were higher than those in normal brain tissues [29% (10/35), 31% (11/35)], the differences were statistically significant (χ2 values were 15.099 and 8.407, both