2.Only certain aspects of knowledge have impact on attitudes toward epilepsy
Kheng Seang Lim ; Monica Chen Mun Wo ; Sherrini Ahmad Bazir Ahmad ; Chong Tin Tan
Neurology Asia 2013;18(4):361-368
Introduction: None of the identified studies employed quantitative scales correlating the knowledge and
attitudes toward epilepsy. Method: This study aimed to study the relationship between the knowledge
and attitudes toward epilepsy, using the Epilepsy Knowledge Questionnaire (EKQ) and the Public
Attitudes Toward Epilepsy (PATE) scale. Results: A total of 279 publics with a mean age of 36.6±14.7
years (ranged from 15-77 years), 50.8% female with majority (63.0%) Chinese, and 49.5% with
tertiary education level, were recruited. The mean score of epilepsy knowledge questionnaire (EKQ)
was 21.05±3.92 (95% CI: 20.57-21.48). Higher score in EKQ was associated with higher education
level (p<0.01). The total score in the EKQ correlated negatively with the mean scores in the PATE
scale, as well as the mean scores in both the personal domain and general domains in the PATE scale
(p<0.05). Only 8 out of 34 items in EKQ were associated significantly with the mean scores in the
personal domain, and 4 other items were with the general domain of the PATE scale.
Conclusion: This study showed that although the overall knowledge in epilepsy is significantly associated
with better attitudes toward epilepsy, only certain aspects of knowledge in the scale contributed to
this association.
3.Efficacy of repetitive transcranial magnetic stimulation on refractory epilepsy in Malaysia
Sherrini Bazir Ahmad ; Kheng Seang Lim ; Hui Ting Goh ; Chen Mun Wo ; SiewYong Low ; Chong Tin Tan
Neurology Asia 2016;21(3):225-233
Background & Objective: Modulation of cortical excitability by low frequency repetitive transcranial
magnetic stimulation (rTMS) has demonstrated therapeutic use in epilepsy. This study aimed to evaluate
the efficacy of low-frequency rTMS on refractory epilepsy in a group of Malaysian subjects. Methods:
Nine patients with refractory epilepsy completed the study. All patients received 10 sessions of 1Hz
rTMS (1000 pulses per session) at 90% of resting motor threshold. Outcome measures included seizure
frequency, Symptom Checklist-90 (SCL-90), Beck Depression Inventory II (BDI II) and Quality of
Life in Epilepsy-31 (QOLIE-31). Responders were defined as having ≥ 50% seizure reduction. Results:
The mean age was 33.8 years (SD 11.7), with 4 male. Three patients had mesial temporal sclerosis
(MTS); 4 with focal cortical dysplasia (FCD) and two lesion-negative. Three patients achieved >50%
seizure reduction at 8 weeks post-treatment, with 2 of them had improvement in the number of IED.
All of the responders had FCD. The responders were younger (mean 24.7 vs. 38.3 years old), had
shorter duration of illness (mean 15.7 vs. 30.5 years) and had less frequent seizure frequency prior to
treatment (mean 5.5 vs. 10.8 attacks per week), as compared to the non-responders. Six patients had
improvement in BDI-II scores, two in QOLIE-31 and four in SCL-90 post treatment, irrespective of
seizure control. The mean scores in BDI-II improved significantly with treatment (p<0.01).
Conclusion: rTMS is a potentially promising treatment for epilepsy, esp
Transcranial Magnetic Stimulation
;
Epilepsy
4.Clinical analysis of prophylactic lamivudine reduced hepatitis B virus reactivation in patients with B-cell non-Hodgkin 's lymphoma receiving rituximab combination chemotherapy
Jianyi ZHU ; Fangyuan CHEN ; Fei XIAO ; Honghui HUANG ; Hua ZHONG ; Xiaofeng HAN ; Tin WANG ; Lan XU ; Lu ZHONG ; Beiwen NI
Journal of Leukemia & Lymphoma 2012;21(9):524-527
Objective To investigate the safety of rituximab combination chemotherapy in the treatment of B-cell non-Hodgkin' s lymphoma (B-NHL) complicated with hepatitis B virus (HBV) infection,and assess the incidence of HBV reactivation reduced by prophylactic lamivudine.Methods A retrospective study of HBV-related markers,HBV-DNA and liver function was performed before and after rituximabcontaining treatment in B-NHL patients.Thirty nine B-NHL patients with HBcAb(+)/HBsAb(-) were divided into prophylactic group (14 cases) and control group (25 cases).The incidences of HBV reactivation,functional damage of liver were measured.Results Among the 108 B-NHL patients who received rituximab combinatio nchemotherapy,15 (13.89 %) were HBsAg (+) and 39 (36.11%) HBsAg (-) / HBcAb (+).Of the 15 HBsAg (+)patients,2 (13.3 %) experienced reactivation of HBV.The prevalence of HBV reactivation was 7.7 %(1/13) in patients who received prophylactic antiviral treatment and 50 % (1/2) in those who did not receivelamivudine.Among the 39 HBsAg (-) / HBcAb (+) patients,3 cases (7.7 %) experienced reactivation of HBV.The prevalence of HBV reactivation was 0 in patients who receivcd prophylactic lamivudine treatment and 12 % (3/25) in those who did not receive this antiviral drug.Conclusion Prophylactic lamivudine before rituximab combination chemotherapy can reduce HBV reactivation obviously.
5.Assessment of risk for tin mine dust in Guangxi.
Huasheng ZHANG ; Jian YANG ; Yingbiao QIN ; Rangan CHEN ; Jingqiong CHEN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2002;20(6):430-432
OBJECTIVETo explore the minimum observed adverse effect level(LOAEL) and intensity of pathogenesis of tin mine dust.
METHODSA cohort study design with retrospective assessment of exposure was used. Selected 4,471 male tin miners who were exposed to tin at least one year during 1960 to 1974 and were compared with 4,797 pottery dust exposed workers in the same way designed. Statistical analysis system SAS, PROC LIFETEST were used to perform the non-parameter calculation by Life Table method.
RESULTSTin mine cohort subjects were followed up to December 31, 1994. The percentage of miners who developed silicosis was 21.7% (971/4,471). 81% of the patients had been exposed to dust before 1958. The cumulative total dust exposure(CTD) was significantly correlated with silicosis risk. The risk of silicosis was 0.012 when CTD was less than 50 mg/m-3.year-1. The risk of silicosis was increased to 0.971 when CTD was beyond 400 mg.m-3.year-1. However, the risk of silicosis was only 0.369 for dust exposed workers in pottery factories when CTD was beyond 400 mg.m-3.year-1.
CONCLUSIONThere was significant relationship between cumulative dust exposure and the incidence of silicosis in tin exposed workers. And silicosis induced by tin mine dust is more serious than the pottery dust.
Cohort Studies ; Dust ; Humans ; Mining ; Occupational Exposure ; adverse effects ; Silicosis ; etiology ; Tin
6.Intracranial Atherosclerosis: From Microscopy to High-Resolution Magnetic Resonance Imaging.
Wen Jie YANG ; Ka Sing WONG ; Xiang Yan CHEN
Journal of Stroke 2017;19(3):249-260
Intracranial atherosclerosis is one of the leading causes of ischemic stroke and occurs more commonly in patients of Asian, African or Hispanic origin than in Caucasians. Although the histopathology of intracranial atherosclerotic disease resembles extracranial atherosclerosis, there are some notable differences in the onset and severity of atherosclerosis. Current understanding of intracranial atherosclerotic disease has been advanced by the high-resolution magnetic resonance imaging (HRMRI), a novel emerging imaging technique that can directly visualize the vessel wall pathology. However, the pathological validation of HRMRI signal characteristics remains a key step to depict the plaque components and vulnerability in intracranial atherosclerotic lesions. The purpose of this review is to describe the histological features of intracranial atherosclerosis and to state current evidences regarding the validation of MR vessel wall imaging with histopathology.
Asian Continental Ancestry Group
;
Atherosclerosis
;
Autopsy
;
Hispanic Americans
;
Humans
;
Intracranial Arteriosclerosis*
;
Magnetic Resonance Imaging*
;
Microscopy*
;
Pathology
;
Stroke
7.Lycium barbarum glycopeptide reduces bone loss caused by exosomes derived from human gingival fibroblasts with radiation exposure
Siqi HE ; Nan WEN ; Xun CHEN ; Yue WANG ; Tin ZHANG ; Yandong MU
Journal of Southern Medical University 2024;44(9):1752-1759
Objective To explore the protective effect of Lycium barbanun glycopeptide(LbGP)against osteogenic inhibition induced by exosomes derived from human gingival fibroblasts(HGFs)exposed to radiation.Methods Cultured HGFs with or without LbGP pretreatment were exposed to 8 Gy X-ray radiation,and the changes in cell apoptosis,senescence and α-SMA level were detected using RT-qPCR,Western blotting and β-galactosidase staining.The exosomes secreted by the treated cells were extracted,and after identification by electron microscopy,particle size analysis and Western blotting,the exosomes were added into primary cultured bone mesenchymal stem cells(BMSCs),and osteoclast activity and osteogenesis in the cell cultures were detected by Trap staining,Alizarin red staining,ALP staining,RT-qPCR and Western blotting.Results In cultured HGFs,X-ray radiation significantly increased the percentage of senescent cells,which was obviously lowered by LbGP treatment.X-ray radiation significantly reduced Bcl-2/Bax ratio and increased α-SMA expression in HGFs,and these changes were significantly suppressed by LbGP pretreatment.In rat BMSCs,incubation with the exosomes derived from HGFs with radiation exposure caused a significant increase of osteoclasts,reduced calcium nodules and lowered alkaline phosphatase expression in the cells;The opposite changes were observed in the cells treated with exosomes from LbGP-pretreated HGFs,which also significantly increased the cellular expressions of the osteogenic genes(BMP2,ALP,and RUNX2)and proteins(ALP and RUNX2)as compared with the exosomes from irradiated HGFs.Conclusion LbGP can effectively inhibit osteoclast activity and promote osteogenesis by acting on exosomes secreted by irradiated HGFs,suggesting its potential value for treatment of osteoradionecrosis of the jaw.
8.Lycium barbarum glycopeptide reduces bone loss caused by exosomes derived from human gingival fibroblasts with radiation exposure
Siqi HE ; Nan WEN ; Xun CHEN ; Yue WANG ; Tin ZHANG ; Yandong MU
Journal of Southern Medical University 2024;44(9):1752-1759
Objective To explore the protective effect of Lycium barbanun glycopeptide(LbGP)against osteogenic inhibition induced by exosomes derived from human gingival fibroblasts(HGFs)exposed to radiation.Methods Cultured HGFs with or without LbGP pretreatment were exposed to 8 Gy X-ray radiation,and the changes in cell apoptosis,senescence and α-SMA level were detected using RT-qPCR,Western blotting and β-galactosidase staining.The exosomes secreted by the treated cells were extracted,and after identification by electron microscopy,particle size analysis and Western blotting,the exosomes were added into primary cultured bone mesenchymal stem cells(BMSCs),and osteoclast activity and osteogenesis in the cell cultures were detected by Trap staining,Alizarin red staining,ALP staining,RT-qPCR and Western blotting.Results In cultured HGFs,X-ray radiation significantly increased the percentage of senescent cells,which was obviously lowered by LbGP treatment.X-ray radiation significantly reduced Bcl-2/Bax ratio and increased α-SMA expression in HGFs,and these changes were significantly suppressed by LbGP pretreatment.In rat BMSCs,incubation with the exosomes derived from HGFs with radiation exposure caused a significant increase of osteoclasts,reduced calcium nodules and lowered alkaline phosphatase expression in the cells;The opposite changes were observed in the cells treated with exosomes from LbGP-pretreated HGFs,which also significantly increased the cellular expressions of the osteogenic genes(BMP2,ALP,and RUNX2)and proteins(ALP and RUNX2)as compared with the exosomes from irradiated HGFs.Conclusion LbGP can effectively inhibit osteoclast activity and promote osteogenesis by acting on exosomes secreted by irradiated HGFs,suggesting its potential value for treatment of osteoradionecrosis of the jaw.
9.Taiwanese Female Vegetarians Have Lower Lipoprotein-Associated Phospholipase A2 Compared with Omnivores.
Chih Wei CHEN ; Chih Ta LIN ; Ying Lung LIN ; Tin Kwang LIN ; Chin Lon LIN
Yonsei Medical Journal 2011;52(1):13-19
PURPOSE: Many studies supported that vegetarians have a lower risk of cardiac diseases and mortality, partly due to better blood pressure and serum cholesterol profiles. However, the inflammatory markers, especially lipoprotein-associated phospholipase A2 (Lp-PLA2), have not been well-studied. This study aimed to compare inflammatory markers and conventional risk factors between vegetarians and omnivores. MATERIALS AND METHODS: One hundred and seventy-three vegetarians and 190 omnivores were studied. Fasting blood samples were obtained to compare levels of glucose, total cholesterol, triacylglycerol, high density lipoprotein (HDL) and low density lipoprotein (LDL) cholesterol, homocysteine, Lp-PLA2 activity, and high-sensitivity C-reactive protein (hs-CRP). RESULTS: Vegetarians had higher serum levels of the following markers: hs-CRP (1.8 +/- 3.4 vs. 1.2 1.8 mg/L, respectively; p = 0.05), homocysteine (9.39 +/- 3.22 vs. 7.62 +/- 2.41 micromol/L, respectively; p < 0.01), and triacylglycerol (96.91 +/- 59.56 vs. 84.66 +/- 43.24 mg/dL, respectively; p < 0.05). Vegetarians also had lower levels of Lp-PLA2 (18.32 +/- 7.19 10-3 micromol/min/mL vs. 20.22 8.13 10-3 micromol/min/mL; p < 0.05), total cholesterol (180.62 +/- 36.55 mg/dL vs. 192.73 +/- 36.57 mg/dL; p < 0.01), LDL cholesterol (118.15 +/- 32.8 vs. 126.41 +/- 34.28 mg/dL; p < 0.05), and HDL cholesterol (55.59 +/- 13.30 vs. 62.09 +/- 14.52 mg/dL, p < 0.01). Multivariate analyses demonstrated that a vegetarian diet increases the chances for high serum hs-CRP and low Lp-PLA2 activity. CONCLUSION: In addition to lower total cholesterol, LDL-cholesterol, and HDL-cholesterol, Taiwanese female vegetarians have lower serum Lp-PLA2 activity but higher levels of hs-CRP, homocysteine, and triacylglyerol. It might be due to geographic differences of vegetarian diets, and further studies are needed.
1-Alkyl-2-acetylglycerophosphocholine Esterase/*blood
;
Adult
;
Asian Continental Ancestry Group
;
C-Reactive Protein/metabolism
;
Cholesterol/blood
;
Cholesterol, HDL/blood
;
Cholesterol, LDL/blood
;
*Diet, Vegetarian
;
Female
;
Homocysteine/blood
;
Humans
;
Middle Aged
;
Multivariate Analysis
;
Risk Factors
;
Taiwan
;
Triglycerides/blood
10.The clinical characters and prognostic value of flare phenomenon in metastatic castration resistant prostate cancer patients treated with Abiterone
Tao YANG ; Ying LIU ; Shuzhen CHEN ; Yingyi QIN ; Denglong WU ; Cuidong BIAN ; Tin JIANG ; Feng LIU ; Chengdang XU ; Xin’an WANG ; Yongnan CHI ; Shengsong HUANG
Chinese Journal of Urology 2023;44(12):911-916
Objective:To investigate the clinical characters and prognostic value of PSA flare and bone flare in metastatic castration resistant prostate cancer(mCRPC) patients received Abiterone acetate(AA) therapy.Methods:A retrospective study was conducted for 93 mCRPC patients treated with AA from Jul.2016 to Dec.2020. Mean age was (75.4±8.9)years, median PSA was 58.2 (16.4, 148.6)ng/ml. Patients received at least 6 months of AA treatment. PSA flare was defined as an increase of PSA after AA therapy followed by a decrease. Bone flare was defined as disease progression after 3 months of therapy, typically based on increased lesion intensity or number, and reevaluation 6-9 months later showed improvement in the scan. The clinical characters and prognostic value of the flare phenomenon was evaluated and analyzed respectively.Results:The median follow up time was 16 months(6, 54 months), fourteen patients showed PSA flare at first month after AA treatment, and median time of duration was 2 months(1, 7 months). The serum alkaline phosphatase (ALP) had a similar rising trend along with PSA flare[115.5(98.0, 198.5)U/L vs. 119.0(97.0, 288.8)U/L, P=0.016]. Seven patients showed bone flare and 3 cases co-existed with PSA flare. Multivariate Cox regression analysis indicated bone flare was an independent protective factor for progression free survival(PFS)( HR=0.117, 95% CI 0.015-0.895, P=0.039), PSA flare had no significant influence on PFS ( HR=1.314, 95% CI 0.554-3.121, P=0.536)and overall survival(OS)( HR=1.348, 95% CI 0.393-4.263, P=0.635). Log-rank test showed patients with bone flare had a longer PFS( P=0.016) and OS( P=0.047) compared with patients without bone flare. Conclusions:PSA flare always faded away after 2 months AA therapy and had no influence on PFS and OS. Bone flare maybe an indication for better prognosis.