1.Clinical,imaging and pathological features of primary angiitis of central nervous system
Xianliang LI ; Yannan FANG ; Li REN
Journal of Clinical Neurology 1992;0(01):-
Objective To study the clinical, imaging and pathological features of primary angiitis of central nervous system (PACNS). Methods The clinical data of 8 patients with PACNS (4 suspected and 4 definite) were retrospectively analysed.Results There were 5 males and 3 females in 8 patients with PACNS. Average age was 32 years old and average disease course was 11 months. The initial symptoms were headache in 5, extremital weakness in 2, and speech disorder in 1 patients. The major clinical manifestations were headache in all patients, extremital weakness and numbness in 5, speech disorder in 1, and seizure disorder in 2 patients. 7 patients were with slow-progressive disease courses, and 1 patients with a relapsing-remitting one. MRI showed abnormality in all patients. 6 cases had unilateral lesions and 2 had bilateral lesions. MRI showed ill-defined, irregular or atypical wedge-shaped foci in cortical and subcortical areas in 7 patients and strip-shaped foci with surrounding finger-like cerebral edema in the left frontal and parietal lobe and gyrus cinguli in 1 patient. All lesions enhanced with different degree on contrast-enhanced scan. Enhanced lesions along sulcus and gyrus were seen in 7 patients and mass-like irregular linear enhancement lesion in 1 patient. Diffusion-weighted imaging(DWI) showed hyper-signal and apparent diffusion coefficient(ADC) showed hypo-signal in 5 patients. MRA showed stiffness and lack of smooth in one or more cerebral arteries with multiple segmental narrowing and expanding, and rarity of arterial distal branches in 8 patients. Digital subtraction angiography (DSA) also showed multiple segmental narrowing and expanding in cerebral arteries, and rarity of arterial distal branches in 4 patients. Brain biopsy in 4 cases revealed angiitis with lymphocytic infiltration. 5 patients received treatment with single corticoid, and 3 with cyclophosphamide. All cases had good outcome. Conclusions The clinical manifestations of PACNS are various. The changes of imaging are obvious, MRI, MRA and DSA are helpful in the diagnosis of PACNS. The definite diagnosis relies on brain biopsy.
2.The expression of mitogen-activated protein kinase and its upstream regulated signal in human hepatocellular carcinoma
Guangming LI ; Jiye ZHU ; Yannan LIU
Chinese Journal of General Surgery 1997;0(06):-
Objective This study was to detect protein expression of ERK 1,ERK 2,JNK 1,p38 and MEK 1 ,MEK 2 in human hepatocellular carcinoma and adjacent non neoplastic liver tissues.Method Western blot was used to detect the expression of ERK 1,ERK 2, JNK 1,p38 and MEK 1,MEK 2 in the surgically resected hepatocellular carcinoma and para carcinoma tissues in 16 HCC patients.[WT5”HZ] Result The expression of ERK 1,ERK 2,p38 expressed by integral optic density (IOD) in hepatocellular carcinoma was significantly higher than that in para carcinoma respectively: as for ERK 1 it was 300?98 in carcinoma and 98?48 in para carcinoma tissues ( P
3.Examples of Medical Cases of TCM Treatment of Syndrome Differentiation for Subacute Thyroiditis
Yannan LUO ; Dianhong WANG ; Wei LI
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(10):111-112
Subacute thyroiditis is a common type of thyroid pain disease. Severe symptoms include fever and severe pains in the thyroid gland. Throughout many years of clinical experience, the author found that TCM treatment for subacute thyroiditis is effective, with less adverse reactions. This article reported two cases of subacute thyroiditis treated recently.
4.Variation of serum NSE and S-100 ? in patients with acute cerebral infarction subtypes
Zhendong LI ; Haiwei HUANG ; Yannan FANG ; Ruxun HUANG
Chinese Journal of Pathophysiology 2000;0(07):-
AIM: To explore clinical significance of the serum changes of neuron-specific enolase (NSE)and S-100 ? protein (S-100 ?) during acute cerebral infarction. METHODS: 59 acute cerebral infarction patients were classified as total anterior circulation infarcts (TACI), partial anterior circulation infarcts (PACI), lacunar infarcts (LACI) and posterior circulation infarcts (POCI). Their serum NSE and S-100 ? concentrations were determinated by enzyme linked immunosorbent assay (ELISA) during stroke onset 6 d, and compared with 32 controls. RESULTS: The every time point serum NSE concentration of TACI was higher than controls (P
5.Relationship among CT scan and clinical findings in acute phase of subarachnoid haemorrhage and subsequent cerbral damage.
Yannan FANG ; Jianwen LIN ; Jinru LI ; Ruxun HUANG ; Wenzhong ZHENG
Chinese Journal of Nervous and Mental Diseases 2001;27(1):19-21
Objective To search the relative factors of cerebral damage, rebleeding, delayed cerebral ischaemia(DCI) and hydrocephalus after subarachnoid haemorrhage (SAH) by CT scans and clinical findings in acute phase. Methods To analyse the relationship between cerebral damage after SAH and clinical findings: CT scans resulte, age, sex, blood pressure, hyponatraemia, therapeutic methods. Results Cerebral damage were related to the pattern of distritution of SAH on brain CT and hyponatraemia. The high attack rate of rebleeding and DCI is related to presence of blood in the surface of brain, collection of blood in the ventricle, saccula aneurysms or cerebral arteriovenous malformation (AVM) (P<0.01). Conclusions To forecast of cerebral damage after SAH by study of CT scans showing and clinical findings have clincal significance. According to these findings, we may take some therapeutics to prevent the cerebral damage after SAH.
6.Association of CACNA1A gene polymorphism with familial hemiplegic migraine in southern Chinese
Feng CHEN ; Yannan FANG ; Hairong LI ; Xuejing WANG
Chinese Journal of Tissue Engineering Research 2006;10(8):170-172
BACKGROUND: The involvement of genetic factors in migraine has been under close investigation, and geneiic epidemiological study and segregation analysis have confirmed genetic disposition as an important risk factor for migraine.OBJECTIVE: To analyze the connection between mutations in CACNA1A gene and familial hemiplegic migraine (FHM) in southern Chinese Han patients by examining the three most frequently mutated sites in CACN1A gene.DESIGN: Sampled survey.SETTING: First Affiliated Hospital of Zhongshan University and Baoan Xixiang People's Hospital of Shenzhen City.PARTICIPANTS: All the participants were selected from patients in the above two hospitals and their relatives, including 10 patients with FHM, 12 relatives of the patients in 2 pedigrees, 53 migraine patients with aura without family history, and 10 healthy control subjects.METHODS: The exons 13, 16 and 17 of CACNL1A4 gene were amplified by PCR. Single-strand conformation polymorphism technique was employed to detect the most frequent mutations in the 3 exons (T666M, R583Q and D715E) in these subjects.MAIN OUTCOME MEASURES: ① Results of PCR amplification of the 3 exons of CACNL1A4 gene; ② Results of SSCP for mutation analysis of the 3 exons.RESULTS: Participants completed the study. The target fragment length of exons 13, 16 and 17 were 247 bp, 268 bp and 204 bp, respectively.None of mutations of T666M, R583Q and D715E were detected in the subjects, including FHM patients and their relatives, migraine patients without family history and the healthy control subjects.CONCLUSION: None of the 3 most frequent mutations (T666M, R583Q and D715E) can be detected in southern Chinese FHM pedigrees or migraine patients without family history.
7.Construction and identification of a recombinant adenovirus vector with indoleamine 2,3-deoxygenase and chimeric albumin promoter
Yannan BAI ; Maolin YAN ; Yaodong WANG ; Dehua LI
Chinese Journal of General Surgery 2010;25(3):243-245
Objective To construct a recombinant adenovirus vector encoding for indoleamine 2,3-dioxygenase(IDO)and chimetric albumin promoter,evaluate the mRNA and protein expression levels in Hepa 1-6cell.Methods Full-length mouse derived IDO cDNA was subeloned into pAdTraek-ALB shuttle Plasmid.The product was linearized to homologous recombination with AdEasy-l vector in BJ5183 bacteria.The positive clone was identified by restriction endonuclease digestion and further confirmed by sequencing.The recombined adenoviruses DNA were transfected into AD-293 cells for packaging and amplification of Ad-ALB/IDO.The expression of IDO was monitored by RT-PCR and EGFP fluorescence in infected cells.The recombinant viruses with Hepa 1-6 cells were cultured and the mRNA and protein expression levels monitored bv RT-PCR and Western blot, respectively. Results Construction of recombinant andenoviruses containing IDO and albumin promoter was confirmed by restriction endonuclease digestion and sequencing.The expression of IDO was identified by RT-PCR in transfected AD-293 cell.The virus titer was 2.9×10~6 pfu/ml.The IDO mRNA and protein expression levels were detectable after transfected Hepa 1-6 cells by RT-PCR and Western blot. Conclusion A recombinant adenovirus Ad-ALB/IDO was susceessfullyconstructed.
8.Process solution of autoantibodies in patients of autoimmune hemolytic anemia
Yannan FENG ; Mingwei LI ; Linfeng CHEN ; Deqing WANG
International Journal of Laboratory Medicine 2015;(20):2975-2976
Objective Serological characteristic analysis for patients with autoimmune hemolytic anemia(AIHA)who has cold and warm auto‐antibody when undergoing blood type and cross‐matching .Methods Choosed 3 donors of red blood cells of group O to absorb autoantibodies of the patient′s serum(by using the methods of cold absorption) and used 2‐mercaptoethanol(2‐Me) to de‐stroyed the IgM antibody .Results The patient of AIHA blood type was B+ .There was cold and warm auto‐antibody in the pa‐tient′s serum ,and the result of cross‐matching is incompatible .Conclusion The patient′s serum contains cold and warm auto‐anti‐body which interferes blood type and cross‐matching .In emergency ,considering the patients condition ,blood transfusion combined with the drug treatment could achieve good effects .
9.Effect of Experimental Infection with Schistosoma japonicum on the Pregnancy of Mice
Yannan WANG ; Ximei MA ; Hong LI ; Xiaoyan ZHANG ; Wenchang HUANG
Chinese Journal of Parasitology and Parasitic Diseases 1987;0(04):-
Objective To understand the effect of Schistosoma infection on the gestation in mice.\ Methods Female mice infected with Schistosoma japonicum cercariae, and mated with male mice (uninfected) at 40 d and 100 d post\|infection, the changes during pregnant period and the growth of offspring were observed until birth. The serum level of estradiol and progesterone of the infected mice was measured by RIA at oestrus.\ Results The level of estradiol and progesterone, and the pregnant rate were much lower in schistosome infected group than that of the control. The rate of abortion, the mortality of pregnant mice and the death rate due to abortion of infected mice increased significantly. The mortality increased with the time of merging ♀ and ♂mice in one cage prolonged. The body weight and length of the offspring in both infected and control groups were found no significant difference.\ Conclusion The results revealed that schistosome infection may suppress estradiol and progesterone secretion, decrease the rate of pregnancy, and that it may also increase the complications and mortality during the gestation periods.
10.Contents of dry blood spot free carnitine and acylcarnitines in healthy children aged 0-6 years old
Yannan CAI ; Mingzhi PENG ; Minyan JIANG ; Li LIU
International Journal of Laboratory Medicine 2017;38(16):2179-2182
Objective To conduct the statistical analysis on the free carnitine and acylcarnitines levels in 0?6 years old children by detecting the contents of free carnitine and acylcarnitines in dry blood spot to provide the biological reference range for the diagnosis of fatty acid metabolic disorder and organic acidemia.Methods The levels of acylcarnitines of peripheral blood dry blood spot in 263 normal children were detected by using the isotopic dilution non-derived tandem mass spectrometry.All children were divided into male and female groups according to different genders and divided into the groups according to the age,1-28 d(gestational weeks ≥37 weeks),1-12 months old,13 months-3 years old and 4-6 years old.Results The detection results after normality test found that the levels of free carnitine and acylcarnitines in children showed a normality distribution.The free carnitine and various acylcarnitines levels had no statistical difference between male children and female children (t=0.5,P=0.619).The C4,C5,C6,C10,C12 and C18 had equal variance among various age groups(P>0.05) and could conducted the one way variance analysis;C0,C2,C3,C5,OH,C6,C8,C14,C16 and C18 had the variance heterogeneity among different age groups(P<0.05) and could conduct the rank-sum test(P<0.05).The C0,C2,C3,C5,OH,C6,C8,C10,C12,C14,C16 and C18 had statistical differences among different age groups,the reference value ranges were calculated according to different ages.The difference in C4 and C5 had no statistical significance and the reference value range could be calculated by the merged group.Conclusion It is a very important for the diagnosis and treatment of fatty acid metabolic disorder and organic acidemia to establish the reference value ranges of dry blood spot free carnitine and acylcarnitines in children according to different ages.