1.Clinical study on treatment of Diabetic foot with negative pressure of wound surface combined with periosteal distraction
Jing LI ; Yichen ZHOU ; Dezhong HENG
Journal of Clinical Surgery 2024;32(7):763-766
Objective To explore the clinical study of the treatment of Diabetic foot with wound negative pressure treatment(NPWT)combined with periosteal distraction.Methods 129 patients with Diabetic foot admitted to our hospital from June 2022 to April 2023 were randomly divided into a combination group(n=43),a negative pressure group(n=43),and a control group(n=43).The control group was treated with conventional treatment,the negative pressure group was treated with NPWT,and the combined group was combined with periosteal distraction technique on the basis of the negative pressure group.The treatment efficiency,inflammatory index level,peripheral blood picture level,visual pain(VAS)score,and foot related index level of the three groups were compared.Results After 4 weeks of treatment,the scores of pain scale(VAS),white blood cell count(WBC),Calcitonin(PCT),Interleukin 6(IL-6),and high-sensitivity C-reactive protein(hs CRP)in the combined group were lower than those in the other two groups(P<0.05);The effective rate,foot temperature,toe blood oxygen,Ankle-brachial pressure index,vascular diameter,blood flow velocity,and perfusion index(PI)of the combined group were higher than those of the other two groups(P<0.05).Conclusion The combination of wound negative pressure therapy and periosteal distraction surgery can effectively alleviate pain,improve foot blood supply,and alleviate inflammatory reactions.
2.A CT-based radiomics nomogram for predicting local tumor progression of colorectal cancer lung metastases treated with radiofrequency ablation
Haozhe HUANG ; Hong CHEN ; Dezhong ZHENG ; Chao CHEN ; Ying WANG ; Lichao XU ; Yaohui WANG ; Xinhong HE ; Yuanyuan YANG ; Wentao LI
China Oncology 2024;34(9):857-872
Background and Purpose:The early prediction of local tumor progression-free survival(LTPFS)after radiofrequency ablation(RFA)for colorectal cancer(CRC)lung metastases has significant clinical importance.The application of radiomics in the prediction of tumor prognosis has been explored.This study aimed to construct a radiomics-based nomogram for predicting LTPFS after RFA in CRC patients with lung metastases.Methods:This study retrospectively analyzed 172 CRC patients with 401 lung metastases admitted to Department of Interventional Radiology,Fudan University Shanghai Cancer Center from August 2016 to January 2019.This study was reviewed by the medical ethics committee of Fudan University Shanghai Cancer Center(ethics number:2402291-24).After augmentation of pre-ablation and immediate post-ablation computed tomography(CT)images,the target metastases and ablation regions were segmented manually to extract the radiomic features.Maximum relevance and minimum redundancy algorithm(MRMRA)and least absolute shrinkage and selection operator(LASSO)regression models were applied for feature selection.The clinical model,the radiomics model,and the fusion model were constructed based on the selected radiomic features and clinical variables screened by the multivariate analysis.The Harrell concordance index(C-index)and area under receiver operating characteristic(ROC)curves(AUC)were calculated to evaluate the prediction performance.Finally,the corresponding nomogram of the best model was drawn.Results:Among all the lung metastases,102(25.4%)had final recurrence,and 299(74.6%)had complete response(CR).The median follow-up time was 21 months(95%CI:19.466-22.534),and the LTPFS rates at 1,2,and 3 years after RFA were 76.5%(95%CI:72.0-80.4),72.1%(95%CI:66.6-76.9)and 69.9%(95%CI:64.0-75.1).In both the training and test dataset,the fusion model based on the final 12 radiomic features through the LASSO regression and 4 clinical variables screened by multivariate analysis achieved the highest AUC values for LTPFS,with C-index values of 0.890(95%CI:0.854-0.927)and 0.843(95%CI:0.768-0.916),respectively.Conclusion:The fusion model based on radiomic features and clinical variables is feasible for predicting LTPFS after RFA of CRC patients with lung metastases,whose performance is superior to the single radiomic and clinical model.At the same time,the nomogram of the fusion model can intuitively predict the prognosis of CRC patients with lung metastases after RFA,thus assisting clinicians in developing individualized follow-up review plans for patients and adjusting treatment strategies flexibly.
3.Spatial transcriptome analysis of long non-coding RNAs reveals tissue specificity and functional roles in cancer.
Kang XU ; Xiyun JIN ; Ya LUO ; Haozhe ZOU ; Dezhong LV ; Liping WANG ; Limei FU ; Yangyang CAI ; Tingting SHAO ; Yongsheng LI ; Juan XU
Journal of Zhejiang University. Science. B 2023;24(1):15-31
Long non-coding RNAs (lncRNAs) play a significant role in maintaining tissue morphology and functions, and their precise regulatory effectiveness is closely related to expression patterns. However, the spatial expression patterns of lncRNAs in humans are poorly characterized. Here, we constructed five comprehensive transcriptomic atlases of human lncRNAs covering thousands of major tissue samples in normal and disease states. The lncRNA transcriptomes exhibited high consistency within the same tissues across resources, and even higher complexity in specialized tissues. Tissue-elevated (TE) lncRNAs were identified in each resource and robust TE lncRNAs were refined by integrative analysis. We detected 1 to 4684 robust TE lncRNAs across tissues; the highest number was in testis tissue, followed by brain tissue. Functional analyses of TE lncRNAs indicated important roles in corresponding tissue-related pathways. Moreover, we found that the expression features of robust TE lncRNAs made them be effective biomarkers to distinguish tissues; TE lncRNAs also tended to be associated with cancer, and exhibited differential expression or were correlated with patient survival. In summary, spatial classification of lncRNAs is the starting point for elucidating the function of lncRNAs in both maintenance of tissue morphology and progress of tissue-constricted diseases.
Humans
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Gene Expression Profiling
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Neoplasms/genetics*
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Organ Specificity
;
RNA, Long Noncoding/genetics*
;
Transcriptome
4.The Decision Strategies of Adolescents with Different Emotional Stabilities in Unfair Situations.
Yajing SI ; Lin JIANG ; Chanlin YI ; Qi ZHANG ; Cunbo LI ; Jing YU ; Peiyang LI ; Qiang LIU ; Feng WAN ; Fali LI ; Dezhong YAO ; Peng XU
Neuroscience Bulletin 2021;37(10):1481-1486
5.Clinical characteristics of 66 patients with novel coronavirus (2019-nCoV) -infected pneumonia (NCIP) in Enshi, Hubei
Zhou FAWEI ; Zheng CHUNYAN ; Wang ZAIPING ; Yin NING ; Peng XUDONG ; Li DEZHONG
Chinese Journal of Emergency Medicine 2020;29(4):488-493
Objective:To describe the epidemiological and clinical characteristics of patients with novel coronavirus (2019-nCoV) -infected pneumonia in Enshi, Hubei, and to improve the awareness of the disease, which is key for surveillance and control measures of 2019-nCoV pneumonia in the region.Methods:The first 66 laboratory-confirmed 2019-nCoV patients in Enshi between January 23, 2020 and February 1, 2020 were included. Their epidemiological data, demographic data, clinical data and therapeutic effect were retrospectively analyzed.Results:Among the first 66 patients with confirmed 2019-nCoV, patients had an average age of 46±9 years, 35 (53.0%) patients were male and 31 (47.0%) female; 38 (57.6%) patients were Han, 18 (27.3%) were Tujia, and 10 (15.1%) were Miao. Thirty-seven (56%) patients had chronic diseases such as coronary heart disease, chronic bronchus, inflammation, diabetes, hypertension, hypothyroidism, and rheumatoid arthritis. All the patients had a history of exposure or indirect exposure in Wuhan epidemic area, mainly history of Wuhan sojourner. The mean incubation period varied from 2.5-16 days, with the 95th percentile of the distribution at 7 days. The main clinical manifestation were fever [66 (100%) patients], dry cough [56 (84.8%)], chest tightness [21 (31.8%)], shortness of breath [8 (12.1%)], massive fatigue [23 (34.8%)], muscle ache [6 (9.1%)], headache [4 (6.1%)], sore throat [13 (19.7%) ], rhinorrhoea [11 (16.7%) ], and diarrhea [ 5 (7.6%)]. Six (9.1%) critically ill patients and 4 (6.1%) critically ill patients had dyspnea. White blood cell counts were normal or decreased in 51 (77.3%) patients, and increased in 15 (22.7%). Lymphocyte counts were reduced or normal in 58 (87.9%) patients, and increased in 8 (12.1%) patients. Most patients had elevated CRP and erythrocyte sedimentation, and some patients had normal ranges of liver function, renal function, and electrolytes. Ten severely ill patients had elevated liver enzymes and cardiac enzymes (especially K and CKMB). There were significant differences in inflammatory markers among patients of different nationalities. Arterial blood gas analysis in 56 (84.8%) mild patients showed no significant abnormalities. Chest CT scans of 66 patients showed single or multiple small patchy shadows and interstitial changes, which were evident in the extrapulmonary band. All patients were hospitalized and isolated for treatment. Of the 66 patients received oxygen therapy, most of them received antiviral therapy (abidol/Kaletra, 0.2 g po tid/2 pills po bid) and interferon (aerosol inhalation), few patient received antibacterial therapy (Tanreqing, 20 mL ivgtt qd) and glucocorticoid therapy (methylprednisolone, 40 mg ivgtt bid), and supplemented by traditional Chinese medicine treatment. Six (9.1%) severely ill patients and 4 (6.1%) critically ill patients treated with non-invasive or invasive ventilator.Conclusions:The patients in this study are all imported cases. Most patients have mild clinical symptoms. The lungs show single or multiple small patchy shadows and interstitial changes, which are obvious with extrapulmonary bands. Seek medical treatment as soon as possible, and the above-mentioned symptomatic treatment scheme is effective. The overall morbidity and mortality in this region are lower than those in other parts of the province, and the mortality and critical illness rate of ethnic minority patients are lower than those of Han patients. There are significant differences in inflammatory markers such as leukocytes and lymphocytes among patients of different nationalities.
6.Multi?modal evaluation of Alzheimer disease by using joint independent component analysis of functional MRI diffusion tensor imaging
Haikuo YU ; Li DONG ; Kun YANG ; Cheng LUO ; Dezhong YAO ; Ying HAN ; Wenying DU
Chinese Journal of Radiology 2019;53(8):672-677
Objective We utilized a joint independent component analysis (Joint ICA), a novel method that combined rs?fMRI and DTI information, to describe comprehensive characteristics of brain functional activities and microstructural changes in the continuum of AD. Methods We employed a Joint ICA to calculate ALFF maps of fMRI data and FA maps of DTI data and fuse them in healthy controls (n=68), SCD (n=35), amnesic MCI (n=47) and AD (n=31). Besides, we applied one way ANOVA to detect the significant differences of joint components among groups, while controlling the age, gender, education, head motion, volumes of gray matter, white matter and CSF. Partial correlation analysis was used to test the relationships between joint ICs and cognitive measures. Results The results showed that there was no inner?group difference in HC and SCD groups (F=14.16, P<0.05). Compared to HC, SCD and AD groups, the ALFF component of aMCI group showed higher values in the bilateral cerebellum, bilateral precuneus, bilateral angular gyrus, bilateral frontal gyrus, bilateral temporal areas, thalamus and left insula. And in these regions, the ALFF of AD group was lower than HC. For the FA component map, same differences were found in the corpus callosum and limbic system. Furthermore, positive partial correlation between the IC weights and Mini?Mental State Examination (MMSE) scores was also found (r=0.29, P<0.01). Conclusions Multi?modal evaluation of AD has been implemented by using Joint ICA analysis of fMRI?DTI, which would contribute to early prediction, diagnosis, and even effective intervention in AD. These findings could help to explain the underlying mechanism of the disease progression.
7.IL-10 gene polymorphism with ulcerative colitis susceptibility and its influence on clinical outcomes
Chinese Journal of Immunology 2016;32(9):1369-1373
Objective:To study the correllation of genetic polymorphisms of IL-10 polymorphic loci with ulcerative colitis sus-ceptibility and its influence on clinical outcomes.Methods:A total of 80 patients with ulcerative colitis were selected as case group and the others by sex and age matched healthy subjects as control group according to the case-control study design.Peripheral venous blood samples were drawn and DNA was extracted from all subjects prior to treatment.PCR primers of -819T/C(rs1800871),-592A/C (rs1800872),-1082G/A(rs1800896) were designed for PCR amplification.The fragments produced from human genomic DNA were performed by restriction enzyme digestion of amplified PCR products,and further separated using agarose gel electrophoresis.Relative risk(OR) and 95%confidence interval(95%CI) were calculated by the Logistic regression,in order to evaluate the correlation of IL-10 gene polymorphism with susceptibility of ulcerative colitis and clinical outcomes.Results:(1)The distribution frequency of genotype AA,GG and AG of polymorphic loci rs1800896 in cases patients were significantly different from that in control group(P<0.01).(2) Compared to rs1800896 genotype AA,genotype GG were significantly associated with increased risk for ulcerative colitis(P<0.01)and the decreased clinical remission rate ( P<0.01 ).( 3 ) The distribution frequency of genotype CC, CT and TT of polymorphic loci rs1800871 were not significantly different between groups(P>0.05).(4)The distribution frequency of genotype AA,AC and CC of polymorphic loci rs1800872 were not significantly different between groups(P>0.05).Conclusion:IL-10 polymorphic loci rs1800896 genotype GG would be associated with increased susceptibility to ulcerative colitis,and poor prognosis of patients.
8.Brain function network analysis and recognition for psychogenic non-epileptic seizures based on resting state electroencephalogram.
Zhenyu WANG ; Qing XUE ; Xiuchun XIONG ; Peiyang LI ; Chunyang TIAN ; Cehong FU ; Yuping WANG ; Dezhong YAO ; Peng XU
Journal of Biomedical Engineering 2015;32(1):8-12
Studies have shown that the clinical manifestation of patients with neuropsychiatric disorders might be related to the abnormal connectivity of brain functions. Psychogenic non-epileptic seizures (PNES) are different from the conventional epileptic seizures due to the lack of the expected electroencephalographically epileptic changes in central nervous system, but are related to the presence of significant psychological factors. Diagnosis of PNES remains challenging. We found in the present work that the connectivity between the frontal and parieto-occipital in PNES was weaker than that of the controls by using network analysis based on electroencephalogram (EEG) signals. In addition, PNES were recognized by using the network properties as linear discriminant nalysis (LDA) input and classification accuracy was 85%. This study may provide a feasible tool for clinical diagnosis of PNES.
Brain
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physiopathology
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Electroencephalography
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Epilepsy
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Humans
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Seizures
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diagnosis
9.Role of AT1 receptor autoantibody in irbesartan-inhibited signaling of endoplasmic reticulum stress in rat kidney with diabetic nephropathy
Chunyan XU ; Linshuang ZHAO ; Dezhong LI
Chinese Journal of Endocrinology and Metabolism 2015;31(5):400-405
Objective To investigate the role of AT1 receptor autoantibody (AT1-AA) in the inhibitory action of irbesartan on endoplasmic reticulum stress (ERS)-related apoptotic signals in rat kidney with diabetic nephropathy (DN).Methods DN model rats were induced by high-sugar and high-fat diet plus intraperitoneal injection of streptozotocin,and the serum level of AT1-AA was detected by ELISA.These DN rats with positive or negative AT1-AA were divided into DN group and irbesartan treated group.After 4 weeks of irbesartan treatment,TUNEL staining was used to detect renal cell apoptosis.The protein and mRNA expressions of ERS chaperone protein glucose-regulated protein 78 (GRP78) and ERS-associated apoptosis proteins were determined by Western blot and RT-PCR.Results Compared with NC group,the apoptosis rate of renal cells in DN group was obviously increased,along with the increased expressions of GRP78,C/EBP homology protein (CHOP),phosphorylated c-Jun N-terminal kinase (JNK),and Caspase12 protein and mRNA (all P<0.01).The cell apoptosis and protein and mRNA levels of these genes were significantly decreased after irbesartan treatment (all P< 0.01),especially in AT1-AA positive DN rats(all P<0.05).The renal cell apoptosis rate,and protein and mRNA levels of these four genes in AT1-AA positive DN group were much greater than those in AT1-AA negative DN group (all P<0.05).Conclusions AT1-AA may be involved in ERS-related cell apoptosis in the kidney of DN rats,and play a role in irbesartan-improved renal function via inhibiting ERS-associated CHOP-JNK-Caspase12 apoptotic signals and renal cell apoptosis.
10.Comparative Study of Detection Results of Urea Nitrogen and Creatinine for Five Medical Laboratory
Dezhong LI ; Xun ZHOU ; Huayu XIE ; Chaokun LIANG ; Hong LI ; Lijun ZHANG ; Chaojin LI
Journal of Modern Laboratory Medicine 2015;(3):90-93,97
Objective To investigate the different biochemical testing system inter laboratory comparability of results,provide reference for promoting inter laboratory test results of the recognition.Methods Five patients with laboratory detection of fresh mixed serum,20 consecutive determination of 10 biochemical items,precision analysis.According to America clinical and Laboratory Standards Institute (CLSI)Document EP9-A2,the Panzhihua Iron and Steel Group General Hospital detec-tion system as the reference system,the remaining four hospital detection system as the detection system,with a fresh mixed serum,determination of five biochemical items (Urea,Cr),(AST,ALT),(TP,ALB),(TG,TC)and (HDL-C,LDL-C),the determination results were compared and analyzed,calculated reference system and the correlation coefficient,linear regres-sion equation between the system and the various medical decision level relative deviation (SE%),and to America Clinical Laboratory Improvement Amendment ability test (CLIA’88)allowed total error of 1/2 as the standard,to the assessment system and the reference system between the comparability and clinical acceptability.Results In Urea,Cr determination for example,CV of five laboratories on Urea and Cr two project was less than CLIA’88 allowed total error of 1/3,the precision could meet the clinical requirements.The detection results significantly correlated (r2 >0.975).The evaluation of clinical ac-ceptability,in Urea low at medical decision level,there were two laboratory determination results that could not be accepted for clinical.In Urea high at medical decision level,there was a laboratory measurement result that could not be accepted for clinical.In the low Cr at medical decision level,there were two laboratory determination results that could not be accepted for clinical.The rest of the system Urea,Cr projects in various medical decision level compared with the system,the SE% was less than CLIA’88 allowed total error of 1/2,for clinical acceptable.Conclusion Laboratory determination results between different biochemical testing system had bias in different degrees,bias part of the project exceeds the allowed error range.

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