1.Clinical analysis of 5 cases of children with primary angiitis of the central nervous system
Yajun WANG ; Jian WAN ; Lixiang REN ; Yulei HU ; Li LI ; Kunhua WU
Chinese Journal of Rheumatology 2014;18(9):619-622
Objective The purpose of the study was to investigate clinical manifestation and the characters of diagnosis and treatment among children with primary angiitis of the central nervous system (cPACNS) in order to improve awareness of the disease.Methods Clinical data of 5 children with cPACNS in the First People's Hospital of Yunnan Province from January 2009 to December 2013 were collected,and the clinical manifestations and laboratory test results were analyzed and summarized.Results Five cases of children with cPACNS were misdiagnosed at the first clinic visit,and were confirmed a clear diagnosis on the average of (4±6) months; clinical manifestations of five cases of varying degrees of headache,one case with severe headache,2 patients with decreased visual acuity,a cases with hearing were loss,two cases with secondarily generalized seizures; five cases with mild abnormal cerebrospinal fluid examination; 1 case with elevated ESR and CRP level,1 case with elevated immunoglobulin IgG level; 5 cases with abnomal MRI examinations,which showed multiple bilateral lesions,diffuse,lesions,involving the cortex and deep white matter; 4 cases had vascular abnormalities on MRA,treated with corticosteroids alone or in combination with cyclophosphamide and achieved good results.Conclusion Children of primary central nervous system vasculitis is ar are autoimmmune disease primarily involving the central nervous system.It is difficult for the clinical diagnosis.Children need to be wary of the major manifestation of headache associated with vision loss,hearing loss,seizures and other focal neurological system damage.
2.ANALYSIS OF CT IMAGE AND EFFECT OF ANTI-CYSTICERCUS THERAPY FOR 300 PATIENTS WITH CEREBRAL CYSTICERCOSIS
Fengju JIA ; Xiaoyan WU ; Wei DAI ; Guangping SUN ; Yingxin HU ; Yulei LIU ; Qiaorong MA ; Ge GAO
Chinese Journal of Schistosomiasis Control 1989;0(04):-
Objective To understand the effect of anti-cysticercus therapy for patients with cerebral cysticercosis and the changes of cysticercus on CT image after treatment. Methods The patients with cerebral cysticercosis were classified by the presentation of their brain CT image before treatment, then the effect of anti-cysticercus therapy on them after treatment was analyzed and the presentations of their brain CT images between before and after treatment were compared. Results There were different changes on CT image of cysticercus in brain tissues after anti-cysticercus therapy for different types of patients with cerebral cysticercosis. Type Ⅰ: the focus was absorbed completely after treatment in the majority of patients and calcificated in the minority. Almost all the patients were cured clinically after anticysticercus therapy. Type Ⅱ: the focus was absorbed completely in the minority, and one to two or more calcification dots were observed in the majority of patients. Anti-cysticercus therapy was effective. Type Ⅲ and Ⅳ: the absorption of focus was not very good and the effect of anti-cysticercus therapy was lower relatively. Conclusion The changes of CT image such as absorption, calcification, has important significance in forecasting prognosis and instructing clinical usage.
3.Online pharmaceutical process analysis of Chinese medicine using a miniature mass spectrometer:Extraction of active ingredients as an example
Wangmin HU ; Junling HOU ; Wenjing LIU ; Xuan GU ; Yulei YANG ; Hongcai SHANG ; Mei ZHANG
Journal of Pharmaceutical Analysis 2023;13(5):535-543
The automation of traditional Chinese medicine(TCM)pharmaceuticals has driven the development of process analysis from offline to online.Most of common online process analytical technologies are based on spectroscopy,making the identification and quantification of specific ingredients still a challenge.Herein,we developed a quality control(QC)system for monitoring TCM pharmaceuticals based on paper spray ionization miniature mass spectrometry(mini-MS).It enabled real-time online qualitative and quantitative detection of target ingredients in herbal extracts using mini-MS without chromatographic separation for the first time.Dynamic changes of alkaloids in Aconiti Lateralis Radix Praeparata(Fuzi)during decoction were used as examples,and the scientific principle of Fuzi compatibility was also investigated.Finally,the system was verified to work stably at the hourly level for pilot-scale extraction.This mini-MS based online analytical system is expected to be further developed for QC applications in a wider range of pharmaceutical processes.
4.Deep learning based software solutions for automatic segmentation of head and neck organs at risk
Xinggang HU ; Xian WANG ; Yang ZHANG ; Yulei ZHANG ; Xiaoxuan LI ; Meng CHEN
Chinese Journal of Medical Physics 2024;41(5):548-553
Objective To evaluate and analyze the accuracies of 3 software solutions based on deep learning techniques in the automatic segmentation of head and neck organs at risk(OAR).Methods The automatic segmentation accuracies of 3 software(PV-iCurve,RT-Mind,and AccuContour)were evaluated with Dice similarity coefficient(DSC),Hausdorff distance(HD),center of mass deviation(COMD),false negative rate(FNR),false positive rate(FPR),Jaccard coefficient(JC),sensitivity index(SI),and inclusive index(II)using the manual contours of head and neck OAR as the gold standard.Results The FNR,JC,SI of brain,the FPR,II of brainstem,the FPR,FNR,JC,SI of eye_L,the FPR,FNR,SI,II of mandible,the FPR,FNR,SI,II of parotid_L,and the DSC,FPR,JC,II of spinal cord manifested significant differences among the 3 software(P<0.05);but the HD,FNR,SI of brainstem,and the HD of spinal cord revealed trivial differences among the 3 software(P>0.05).Conclusion Through the comparison of multiple parameters,it is found that the accuracies of 3 software are different in OAR segmentation,which makes it difficult to make overall horizontal comparisons.Therefore,these parameters are for reference only and cannot be used as criteria for evaluating the segmentation results in clinic.Although all 3 software achieve preferable segmentation outcomes,scrutiny and manual modifications before clinical practice are still necessary.
5. Treatment of 11 cases of malignant arrhythmia induced by acute poisoning
Yulei BI ; Yinghua HU ; Lili QIU ; Di WU ; Keyu FENG
China Occupational Medicine 2019;46(06):746-749
OBJECTIVE: To explore the treatment of malignant arrhythmia induced by acute poisoning. METHODS: To analyze the treatment of 11 cases of malignant arrhythmia caused by acute poisoning. The therapeutic effect of malignant arrhythmia treated by drug, electrical cardioversion and detoxification was observed. RESULTS: The arrhythmias in the patients included premature ventricular beats, ventricular tachycardia, ventricular fibrillation, sinus tachycardia, sinus bradycardia, atrial premature beats, and ST-T changes. After treatment with cardioerter drug such as amiodarone, lidocaine, esmolol and other drugs, electric defibrillation, removeing poisons with hemoperfusion and specific antidotes, and multiple organ protection symptomatic treatment, 10 cases were successfully rescued and 1 case died. CONCLUSION: Malignant arrhythmias caused by acute poisoning could be given combined treatment with anti-arrhythmias and relief of etiology.
6.Discovery of an orally effective double-stapled peptide for reducing ovariectomy-induced bone loss in mice.
Wei CONG ; Huaxing SHEN ; Xiufei LIAO ; Mengjun ZHENG ; Xianglong KONG ; Zhe WANG ; Si CHEN ; Yulei LI ; Honggang HU ; Xiang LI
Acta Pharmaceutica Sinica B 2023;13(9):3770-3781
Stapled peptides with significantly enhanced pharmacological profiles have emerged as promising therapeutic molecules due to their remarkable resistance to proteolysis and performance to penetrate cells. The all-hydrocarbon peptide stapling technique has already widely adopted with great success, yielding numerous potent peptide-based molecules. Based on our prior efforts, we conceived and prepared a double-stapled peptide in this study, termed FRNC-1, which effectively attenuated the bone resorption capacity of mature osteoclasts in vitro through specific inhibition of phosphorylated GSK-3β. The double-stapled peptide FRNC-1 displayed notably improved helical contents and resistance to proteolysis than its linear form. Additionally, FRNC-1 effectively prevented osteoclast activation and improved bone density for ovariectomized (OVX) mice after intravenous injection and importantly, after oral (intragastric) administration. The double-stapled peptide FRNC-1 is the first orally effective peptide that has been validated to date as a therapeutic candidate for postmenopausal osteoporosis (PMOP).