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Shi JF, Shi CL, Yue XP, Huang HY, Wang L, Li J, Lou PA, Mao AY, Dai M. [Economic burden of cancer in China during 1996-2014: a systematic review]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 2017; 38:929-941. [PMID: 27998471 DOI: 10.3760/cma.j.issn.0253-3766.2016.12.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the current status of research on economic burden of cancer in China from 1996 to 2014. Methods: The key words including cancer, economic burden, expenditure, cost were used to retrieve the literatures published in CNKI and Wanfang (the two most commonly used databases for literature in Chinese) and PubMed during 1996-2014. A total of 91 studies were included after several exclusionary procedures. Information on subjects and data source, methodology, main results were structurally abstracted. All the expenditure data were discounted to year of 2013 value using China's health care consumer price indices. Results: More than half of the included studies were published over the past 5 years, 32 of the studies were about lung cancer. Among the 83 individual-based surveys, 77 were hospital-based and obtained data via individually medical record abstraction, and most of which only considered the direct medical expenditure. Expenditure per cancer patient and expenditure per diem were the most commonly used outcome indicators. Majority of the findings on expenditure per cancer patient ranged from 10 thousands to 30 thousands Chinese Yuan (CNY), with larger disparity in lung and breast cancer (ranged from 10 thousands to 90 thousands CNY), narrower difference in esophageal and stomach cancer (ranged from 10 thousands to 50 thousands CNY), and most stable trend in cervical cancer (almost all the values less than 20 thousands CNY). Without exception, the expenditures per diem for all the common cancers were increasing over the period from 1996 to 2014 (3-7 fold increase). Only 8 population-level economic burden studies were included and the reported expenditure of cancer at national level ranged from 32.6 billions to 100.7 billions CNY. Conclusions: Evidence on economic burden of cancer in China from 1996 to 2014 are limited and weakly comparable, particularly at a population level, and the reported expenditure per patient may be underestimated.
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Guo LW, Shi CL, Huang HY, Wang L, Yue XP, Liu SZ, Li J, Su K, Dai M, Sun XB, Shi JF. [Economic burden of esophageal cancer in China from 1996 to 2015: a systematic review]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2017; 38:102-109. [PMID: 28100387 DOI: 10.3760/cma.j.issn.0254-6450.2017.01.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore existing evidence of economic burden of esophageal cancer in China over the past 20 years. Methods: Based on PubMed, CNKI and Wanfang, literatures published from 1996 to 2015 were retrieved with the key words such as " economic burden" , "cost of illness" and so on. Then the information excerpted from those literatures were analyzed after several exclusionary procedures for non-esophageal cancer related literatures. The information about subjects and data source, methodology, main results were structurally abstracted and then analyzed. Quality assessments were conducted independently by two investigators using an 11-item instrument recommended by the Agency for Healthcare Research and Quality (AHRQ) for cross-sectional studies. All the expenditure data were calculated according to year-specific personal health care consumer price index (CPI) of China, the annual growth rate was calculated according to the average speed of growth. Results: A total of 23 studies (21 individual surveys and 2 population-based surveys) were included in the analysis, in which 12 were published over the past 5 years. Among the 21 individual surveys, 17 were hospital-based and the data were obtained through medical record review, and most of which only considered the direct medical economic burden (including the average overall expenditure per patient, per time and per diem). The median expenditure per patient during 1996-2011 ranged from 7 463 to 37 647 yuan (RMB) and the average growth rate was 7.68%. The median medical expenditure per clinical visit during 1996-2013 ranged from 6 851 to 57 554 yuan (RMB) and the average growth rate was 11.89%. The median medical expenditure per diem during 1996-2010 ranged from 225 to 1 319 yuan (RMB) and the average growth rate was 12.53%. The direct medical expenditure per clinical visit varied greatly with area, which were much higher in Beijing, Shanxi and Hubei. In both individual survey and population-based survey, less data about the direct non-medical expenditure and the influence of indirect expenditure on the economic burden were reported. Conclusion: Less data are available on economic burden of esophageal cancer in China over the past 20 years and the data's comparability are poor, especially in terms of population level or indirect burden. Direct medical expenditure is on the rise, and regional differences.
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Huang HY, Chen ZY, Wang RP, de Groot FMF, Wu WB, Okamoto J, Chainani A, Singh A, Li ZY, Zhou JS, Jeng HT, Guo GY, Park JG, Tjeng LH, Chen CT, Huang DJ. Jahn-Teller distortion driven magnetic polarons in magnetite. Nat Commun 2017; 8:15929. [PMID: 28660878 PMCID: PMC5493765 DOI: 10.1038/ncomms15929] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Accepted: 05/12/2017] [Indexed: 11/20/2022] Open
Abstract
The first known magnetic mineral, magnetite, has unusual properties, which have fascinated mankind for centuries; it undergoes the Verwey transition around 120 K with an abrupt change in structure and electrical conductivity. The mechanism of the Verwey transition, however, remains contentious. Here we use resonant inelastic X-ray scattering over a wide temperature range across the Verwey transition to identify and separate out the magnetic excitations derived from nominal Fe2+ and Fe3+ states. Comparison of the experimental results with crystal-field multiplet calculations shows that the spin–orbital dd excitons of the Fe2+ sites arise from a tetragonal Jahn-Teller active polaronic distortion of the Fe2+O6 octahedra. These low-energy excitations, which get weakened for temperatures above 350 K but persist at least up to 550 K, are distinct from optical excitations and are best explained as magnetic polarons. The Verwey transition of magnetite is complex due to the coexistence of strong correlations and electron-phonon coupling. Here, the authors use resonant inelastic X-ray scattering to show evidence for magnetic polarons in magnetite and provide insight into the nature of the transition.
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Wang L, Shi JF, Huang HY, Zhu J, Li J, Fang Y, Dai M. [Economic evaluation on breast cancer screening in mainland China: a systematic review]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2017; 37:1662-1669. [PMID: 27998418 DOI: 10.3760/cma.j.issn.0254-6450.2016.12.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To gather available evidence related to the economic evaluation on breast cancer screening in mainland China and to provide reference for further research. Methods: A systematic review was conducted to identify articles in PubMed and three Chinese databases (CNKI, Wanfang and VIP) during 1995-2015. Data related to descriptive characteristics, rates on participation and detection for population-based studies, methods for model-based studies, types of economic evaluation and results, were extracted. A Consolidated Health Economic Evaluation Reporting Standards (CHEERS) was used to assess the reporting quality of included studies. Results: Of the 356 records searched in the databases, 13 studies (all published between 2012 and 2015) were included in the current paper involving 11 population-based studies and 3 model-based evaluations (1 study using both methods). Age of the participants who started to be engaged in the screening program ranged from 18 to 45 years old, but terminated at the age of 59 years or older. The screening modalities included single-used clinical breast examination, mammography and ultrasound or combined applications. Study persepectives were described in 7 studies, with 5 from the healthcare providers, and 2 from societal angles. Only 5 studies discounted cost or effectiveness. Out of 11 papers, 9 showed the results on cost-effectiveness analysis (CEA) that reporting the cost per breast cancer detection, with median as 145.0 thousand Chinese Yuan (CNY), ranging from 49.7 thousand to 2 293.0 thousand CNY. From 4 papers with results of cost-utility analysis (CUA), the cost per quality adjusted life year (QALY) gained or cost per disability adjusted life year (DALY) averted, were evaluated. The incremental cost-effectiveness ratio (ICER) was from 2.9 thousand to 270.7 thousand CNY (GDP per capita of China was CNY 49.3 thousand in 2015). In 13 studies, the quality of reporting varied, with an average score of 14.5 (range: 9.5-21.0). In the domains of study perspective, discounting, ICER and uncertainty, all the scores of equalities were relatively levels. Conclusions: Currently, evidence on economic evaluation of breast cancer screening in mainland China remained limited and weakly comparable, particularly model-based studies. Comprehensive analysis from societal perspective and QALY or DALY related cost-utility analysis should be implemented.
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Guo F, Wang Q, Yan CY, Huang HY, Yu X, Tu LY. [Clinical application of different sedation regimen in patients with septic shock]. ZHONGHUA YI XUE ZA ZHI 2017; 96:1758-61. [PMID: 27356644 DOI: 10.3760/cma.j.issn.0376-2491.2016.22.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To evaluated the 3 sedation regimen for patients with septic shock. METHODS The randomized controlled trial wan conducted. Forty-five patients with septic shock were assigned to 3 groups (midazolam group, propofol group, and dexmedetomidine group) randomly. The basic characteristics of patients, the duration of mechanical ventilation, the length of stay in the ICU, the death rate for 28 days and the regulatory cell (Treg) in peripheral blood were observed. The control group for Treg test was consisted of 20 healthy volunteers. RESULTS There were no significant differences between the groups in the death rate for 28 days and the duration of mechanical ventilation. The length of stay in the ICU in dexmedetomidine group was shorter than that in midazolam group(15.21±5.55 vs.19.67±5.7 days, P<0.05). The Treg of 3 groups was higher than that of control group (11.82±4.93 vs.3.69±1.71, 11.30±3.42 vs. 3.69±1.71, 12.83±6.17 vs. 3.69±1.71) at the first day of ICU. The Treg after 3 ICU days in dexmedetomidine group and the Treg after 5 ICU days in propofol group and in midazolam group have no difference with control group. CONCLUSION For the patients with septic shock, dexmedetomidine could decrease the length of stay in the ICU and the duration of immune suppression.
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Talite MJA, Lin HT, Jiang ZC, Lin TN, Huang HY, Heredia E, Flores A, Chao YC, Shen JL, Lin CAJ, Yuan CT. Solid-state, ambient-operation thermally activated delayed fluorescence from flexible, non-toxic gold-nanocluster thin films: towards the development of biocompatible light-emitting devices. NANOTECHNOLOGY 2016; 27:345701. [PMID: 27405350 DOI: 10.1088/0957-4484/27/34/345701] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Luminescent gold nanoclusters (AuNCs) with good biocompatibility have gained much attention in bio-photonics. In addition, they also exhibit a unique photo-physical property, namely thermally activated delayed fluorescence (TADF), by which both singlet and triplet excitons can be harvested. The combination of their non-toxic material property and unique TADF behavior makes AuNCs biocompatible nano-emitters for bio-related light-emitting devices. Unfortunately, the TADF emission is quenched when colloidal AuNCs are transferred to solid states under ambient environment. Here, a facile, low-cost and effective method was used to generate efficient and stable TADF emissions from solid AuNCs under ambient environment using polyvinyl alcohol as a solid matrix. To unravel the underlying mechanism, temperature-dependent static and transient photoluminescence measurements were performed and we found that two factors are crucial for solid TADF emission: small energy splitting between singlet and triplet states and the stabilization of the triplet states. Solid TADF films were also deposited on the flexible plastic substrate with patterned structures, thus mitigating the waveguide-mode losses. In addition, we also demonstrated that warm white light can be generated based on a co-doped single emissive layer, consisting of non-toxic, solution-processed TADF AuNCs and fluorescent carbon dots under UV excitation.
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Tso TK, Huang WN, Huang HY, Chang CK. Elevation of plasma interleukin-18 concentration is associated with insulin levels in patients with systemic lupus erythematosus. Lupus 2016; 15:207-12. [PMID: 16686259 DOI: 10.1191/0961203306lu2284oa] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
We previously reported that systemic lupus erythematosus (SLE) patients have a higher risk of insulin resistance and abnormal insulin secretion. Recent studies demonstrated that interleukin (IL)-18, a novel pro-inflammatory cytokine, may be involved in triggering the inflammatory processes in SLE and the concentrations of circulating IL-18 in SLE patients were significantly higher than those in healthy subjects. IL-12 has a synergistic effect with IL-18, and both cytokines are inducers of interferon γ. The objective of this study was to identify the effect of fasting insulin levels on circulating concentrations of IL-18, IL-12 and IFN-γ in patients with SLE. Plasma levels of proinflammatory Th-1 cytokines were determined by enzyme-linked immunosorbent assay in a total of 70 female SLE patients and 34 age-matched healthy females. Insulin resistance (IR) and secretion were evaluated by homeostasis model assessment (HOMA). All patients were further classified into subgroups based on the quartiles of fasting insulin levels. SLE patients with fasting insulin levels in the top quartile compared with other quartiles had significantly higher plasma levels of IL-18. The presence of insulin auto-antibodies (IAA) in SLE patients had no influence on plasma levels of IL-18. In addition, fasting insulin levels and HOMA IR were positively correlated with IL-18 in all SLE patients, respectively. In conclusion, elevated circulating IL-18 concentrations corresponded with increases in fasting insulin levels and the status of insulin resistance in patients with SLE.
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Tso TK, Huang WN, Huang HY, Chang CK. Association of brachial-ankle pulse wave velocity with cardiovascular risk factors in systemic lupus erythematosus. Lupus 2016; 14:878-83. [PMID: 16335579 DOI: 10.1191/0961203305lu2234oa] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Systemic lupus erythematosus (SLE) is associated with premature atherosclerosis. Increasing arterial stiffness is closely associated with atherosclerotic cardiovascular diseases, and pulse wave velocity (PWV) is considered to be an indicator of arterial stiffness. The objective of this study was to identify the relationship between brachial-ankle pulse wave velocity (baPWV) and cardiovascular risk factors in patients with SLE. Age, body mass index (BMI), systolic blood pressure (SBP), diastolic blood pressure (DBP), fasting blood glucose (FBS), plasma lipid profile, plasma homocysteine, thiobarbituric acid reactive substances (TBARS), baPWV, ankle-brachial index (ABI), and SLE-related factors were determined in a total of 83 SLE patients (12 males and 71 females). All SLE patients were further classified into two subgroups according to baPWV value (baPWV 1400 cm/s, n 37 versus baPWV 1400 cm/s, n 46). The mean baPWV value of studied SLE patients was 1520 381 cm/s. Age, BMI, SBP, DBP, FBS, TBARS and homocysteine levels were significantly higher in SLE patients with baPWV value 1400 cm/s than in SLE patients with baPWV value 1400 cm/s. In addition, baPWV correlated significantly with age, SBP, DBP, FBS and homocysteine. Moreover, stepwise multiple regression analysis showed that age and SBP were independently associated with baPWV. The results of this study indicate a possible link between vascular stiffness measured by baPWV and cardiovascular risk factors in patients with SLE.
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Huang HY, Song YQ, Zheng W, Wang XP, Xie Y, Lin NJ, Tu MF, Zhang C, Ping LY, Liu WP, Ying ZT, Deng LJ, Ding N, Wu M, Sun YL, Du TT, Leng X, Zhu J. [Clinical analysis of thalidomide in 36 untreated patients with T-cell lymphoma]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2016; 37:529-31. [PMID: 27431083 PMCID: PMC7348338 DOI: 10.3760/cma.j.issn.0253-2727.2016.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Huang HY, Wang W, Zhou JP, Li QL, Feng WT, Wu ZZ. [Metabolic syndrome and its influencing factors in professional automobile drivers in a company]. ZHONGHUA LAO DONG WEI SHENG ZHI YE BING ZA ZHI = ZHONGHUA LAODONG WEISHENG ZHIYEBING ZAZHI = CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES 2016; 34:258-61. [PMID: 27514257 DOI: 10.3760/cma.j.issn.1001-9391.2016.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the prevalence of metabolic syndrome (MS)in 259 professional automobile drivers, and to put forward targeted suggestions on protection. METHODS In October 2014, 114 male bus drivers and 145 male taxi drivers in a transportation service company were enrolled as investigation group, and 121 non-operating male staff were enrolled as control group. Physical examination and a questionnaire survey were conducted for both groups, and the results were analyzed. RESULTS The bus drivers and taxi drivers had significantly higher prevalence rates of MS than the nonoperating staff(17.5%/13.1% vs 3.3%, P<0.05). The results of univariate logistic analysis showed that smoking(OR=2.58, 95%CI 1.14~5.88), exercise (OR=0.21, 95% CI 0.10~0.43), meal time (OR=0.27, 95% CI 0.13~0.59), and a family history of chronic diseases (OR=2.26, 95% CI 1.13~4.50)were associated with MS, and each independent variable showed significant differences between groups (P<0.05). Multivariate logistic regression analysis showed that with age remaining the same, smoking was the risk factor for MS in professional automobile drivers (OR=5.25, 95%CI 2.00~13.80), and meal time (20~40 min)(OR= 0.20, 95%CI 0.09~0.44)and exercise (OR=0.13, 95% CI 0.06~0.30)were protective factors against MS. CONCLUSION Professional automobile drivers have a higher prevalence rate of MS than non-operating staff, which should be taken seriously by working personnel.
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Chen ZQ, Wang Y, Mi XJ, Chen A, Huang HY, Zhong SJ, Deng WT, Liu CF, Xu XM, Dai XZ. [Comparison between poly hydroxy acrylic acid and Van-clear replacing the traditional reagents to detect the cervical hTERC genes by adopting FISH technique]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2016; 48:356-360. [PMID: 27080296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To observe the difference of the human telomeres RNA component (hTERC) genes' amplification in the cervical tissue by applying the environment-friendly fixative poly hydroxy acrylic acid and the transparent dewaxing solution Van-clear separately or jointly to replace the traditional fixative 4% (volume fraction) neutral buffered formalin and the conventional transparent dewaxing solution xylene in the use of fluorescence in situ hybridization (FISH) for detection. METHODS In the study, 255 cases of cervical tissue specimens submitted by the Department of Gynecology in Zhongshan Boai Hosipital were collected from Mar. 2013 to Apr. 2015. Four samples were taken from the same lesion site. All the cases were divided into 4 groups and named group A, B, C, and D. Group A used 4% neutral buffered formalin fixed and xylene dewaxing to make slices. Group B used poly hydroxy acrylic fixed and xylene dewaxing to make slices. Group C used 4% neutral buffered formalin fixed and Van-clear transparent to make slices. Group D used poly hydroxy acrylic fixed and Van-clear transparent dewaxing to make slices. The amplification of hTERC genes in the four groups of cervical specimens was also detected by FISH technique. RESULTS When the hTERC genes were detected by FISH method under the fluorescence microscope, it was obvious that the tissue profile and the background of group A, B, C and D were all clear. The probe was fixed in the accurate position so that the bright red or green fluorescence signals were easily found in these four groups. Compared with the positive rate of group A, there was no statistical significance in that of group B, C and D (P>0.05). At the same time, the coincidence rate of the FISH results was high, which showed that the new environment-friendly reagent had no significant difference in the detection of cervical hTERC genes by FISH technique. CONCLUSION It is possible for the environment-friendly reagent poly hydroxy acrylic acid and Van-clear to replace 4% neutral buffered formalin and xylene separately or jointly to detect the cervical hTERC genes by adopting FISH technique.
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Huang HY, Jia CJ, Chen ZY, Wohlfeld K, Moritz B, Devereaux TP, Wu WB, Okamoto J, Lee WS, Hashimoto M, He Y, Shen ZX, Yoshida Y, Eisaki H, Mou CY, Chen CT, Huang DJ. Raman and fluorescence characteristics of resonant inelastic X-ray scattering from doped superconducting cuprates. Sci Rep 2016; 6:19657. [PMID: 26794437 PMCID: PMC4726252 DOI: 10.1038/srep19657] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 12/15/2015] [Indexed: 11/23/2022] Open
Abstract
Measurements of spin excitations are essential for an understanding of spin-mediated pairing for superconductivity; and resonant inelastic X-ray scattering (RIXS) provides a considerable opportunity to probe high-energy spin excitations. However, whether RIXS correctly measures the collective spin excitations of doped superconducting cuprates remains under debate. Here we demonstrate distinct Raman- and fluorescence-like RIXS excitations of Bi1.5Pb0.6Sr1.54CaCu2O8+δ. Combining photon-energy and momentum dependent RIXS measurements with theoretical calculations using exact diagonalization provides conclusive evidence that the Raman-like RIXS excitations correspond to collective spin excitations, which are magnons in the undoped Mott insulators and evolve into paramagnons in doped superconducting compounds. In contrast, the fluorescence-like shifts are due primarily to the continuum of particle-hole excitations in the charge channel. Our results show that under the proper experimental conditions RIXS indeed can be used to probe paramagnons in doped high-Tc cuprate superconductors.
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Chen HC, Huang HY, Chen YL, Lee KD, Chu YR, Lin PY, Hsu CC, Chu PY, Huang THM, Hsiao SH, Leu YW. Methylation of the Tumor Suppressor Genes HIC1 and RassF1A Clusters Independently From the Methylation of Polycomb Target Genes in Colon Cancer. Ann Surg Oncol 2015; 24:578-585. [PMID: 26671036 DOI: 10.1245/s10434-015-5024-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Indexed: 12/31/2022]
Abstract
BACKGROUND Methylation changes within tumor suppressor (TS) genes or polycomb group target (PcG) genes alter cell fates. Chromatin associated with PcG targets is bivalent in stem cells, while TS genes are not normally bivalent. PcG target methylation changes have been identified in tumor stem cells, and abnormal methylation is found in TS genes in cancers. If the epigenetic states of genes influence DNA methylation, then methylation of PcG targets and TS genes may evolve differently during cancer development. More importantly, methylation changes may be part of a sequence in tumorigenesis. METHODS Chromatin and methylation states of 4 PcG targets and 2 TS genes were determined in colon cancer cells. The methylation states were also detected in 100 pairs of colon cancer samples. Principle component analysis (PCA) was used to reveal whether TS methylation or PcG methylation was the main methylation change associated with colon cancers. RESULTS Chromatin and methylation states differ in colon cancer cell lines. The methylation states within PcG targets clustered independently from the methylation states in TS genes, a finding we previously reported in liver cancers. PCA in colon cancers revealed the strongest association with methylation changes in 2 TS genes, HIC1 and RassF1A. Loss of HIC1 methylation correlated with decreased tumor migration. CONCLUSIONS PcG and TS methylation states cluster independently from each other. The deduced principle component correlated better with TS methylation than PcG methylation in colon cancer. Abnormal methylation changes may represent a sequential biomarker profile to identify developing colon cancer.
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Chiang JM, Chang CJ, Jiang SF, Yeh CY, You JF, Hsieh PS, Huang HY. Pre-operative serum albumin level substantially predicts post-operative morbidity and mortality among patients with colorectal cancer who undergo elective colectomy. Eur J Cancer Care (Engl) 2015; 26. [PMID: 26526411 DOI: 10.1111/ecc.12403] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2015] [Indexed: 11/30/2022]
Abstract
The quantitative relationship between serum albumin level and surgical outcomes has not been clearly established. This study included 3732 patients with colon cancer who underwent a potentially curative colectomy. Post-operative mortality and morbidity were analysed according to the patients' demographic data, pre-operative comorbidities, and tumour-related factors. Age, asthma, renal impairment, and albumin level were significantly associated with post-operative morbidity and mortality in the multivariate analyses. Logistic regression analysis revealed linear relationships of post-operative morbidity and mortality with albumin level. The morbidity and mortality rates decreased by 7.3% and 15.6%, respectively, for each 0.1 g/dL increase in albumin level. This finding remained significant in the hypoalbuminaemia subgroup but not in the normoalbuminaemia subgroup. That is, the morbidity and mortality rates significantly decreased by 8.7% and 17.7%, respectively (both P < 0.001), in the former group and decreased by 2.7% (P = 0.112) and 11.6% (P = 0.092), respectively, in the latter group. This study demonstrated that serum albumin level linearly predicted the post-operative morbidity and mortality among the colorectal cancer patients. Pre-operative serum albumin level may therefore be used as a continuous rather than a categorical marker of disease severity, especially among patients with hypoalbuminaemia.
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Huang HY, Zhao GP, Liu RR, Li QH, Zheng MQ, Li SF, Liang Z, Zhao ZH, Wen J. Brain Natriuretic Peptide Stimulates Lipid Metabolism through Its Receptor NPR1 and the Glycerolipid Metabolism Pathway in Chicken Adipocytes. Biochemistry 2015; 54:6622-30. [PMID: 26463554 DOI: 10.1021/acs.biochem.5b00714] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Brain natriuretic peptide (BNP) is related to lipid metabolism in mammals, but its effect and the molecular mechanisms underlying it in chickens are incompletely understood. We found that the level of natriuretic peptide precursor B (NPPB, which encodes BNP) mRNA expression in high-abdominal-fat chicken groups was significantly higher than that of low-abdominal-fat groups. Partial correlations indicated that changes in the weight of abdominal fat were positively correlated with NPPB mRNA expression level. In vitro, compared with the control group, preadipocytes with NPPB interference showed reduced levels of proliferation, differentiation, and glycerin in media. Treatments of cells with BNP led to enhanced proliferation and differentiation of cells and glycerin concentration, and mRNA expression of its receptor natriuretic peptide receptor 1 (NPR1) was upregulated significantly. In cells exposed to BNP, 482 differentially expressed genes were identified compared with controls without BNP. Four genes known to be related to lipid metabolism (diacylglycerol kinase; lipase, endothelial; 1-acylglycerol-3-phosphate O-acyltransferase 1; and 1-acylglycerol-3-phosphate O-acyltransferase 2) were enriched in the glycerolipid metabolism pathway and expressed differentially. In conclusion, BNP stimulates the proliferation, differentiation, and lipolysis of preadipocytes through upregulation of the levels of expression of its receptor NPR1 and key genes enriched in the glycerolipid metabolic pathway.
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Wang XL, Huang HY, Li Z, Yu YS, Hu YQ, Ye WX, Hua F, Chen YH, Ni H, Ding QW, Shen ZY. Risk factors associated with aortic remodeling in patients with Stanford type B aortic dissection after thoracic endovascular aortic repair. GENETICS AND MOLECULAR RESEARCH 2015; 14:11692-9. [PMID: 26436493 DOI: 10.4238/2015.october.2.2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
To determine the risk factors associated with adverse aortic remodeling after thoracic endovascular aortic repair (TEVAR) in patients with Stanford type B aortic dissection, we performed a retrospective analysis of 54 patients between January 2009 and June 2012 at the First Affiliated Hospital of Soochow University. All patients underwent TEVAR of the descending thoracic aorta. Multiple-logistic regression analyses were performed to identify risk factors associated with aortic remodeling. True-lumen and false-lumen volumes were increased (P < 0.001) and decreased (P < 0.001) after surgery, respectively. Therefore, the remodeling index increased after surgery (1.04 ± 0.6 to 2.06 ± 1.12, P < 0.001). Remodeling index and true-lumen volume were higher in the favorable aortic remodeling group compared to the adverse aortic remodeling group (P < 0.001), while the false-lumen volume was lower in the favorable aortic remodeling group (P < 0.001). Multivariate analyses revealed a branch originating from the false lumen (OR = 39.9, P < 0.01) and multiple tears (OR = 27.4, P < 0.01) to be independent risk factors for adverse aortic remodeling. Therefore, a branch originating from the false lumen and multiple tears were determined to be independent risk factors for adverse aortic remodeling after TEVAR in patients with Stanford type B aortic dissection.
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Cheng HW, Jeng BM, Chen CY, Huang HY, Chiou JC, Luo CH. The rectenna design on contact lens for wireless powering of the active intraocular pressure monitoring system. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2015; 2013:3447-50. [PMID: 24110470 DOI: 10.1109/embc.2013.6610283] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This paper proposed a wireless power harvesting system with micro-electro-mechanical-systems (MEMS) fabrication for noninvasive intraocular pressure (IOP) measurement on soft contact lens substructure. The power harvesting IC consists of a loop antenna, an impedance matching network and a rectifier. The proposed IC has been designed and fabricated by CMOS 0.18 um process that operates at the ISM band of 5.8 GHz. The antenna and the power harvesting IC would be bonded together by using flip chip bonding technologies without extra wire interference. The circuit utilized an impedance transformation circuit to boost the input RF signal that improves the circuit performance. The proposed design achieves an RF-to-DC conversion efficiency of 35% at 5.8 GHz.
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Huang HY, Liang Z, Li SF, Li CM, Zhao ZH, Wang QB. Polymorphism identification in BMP15 and GDF9 genes and their association with egg production in chickens. Br Poult Sci 2015; 56:277-83. [PMID: 25735815 DOI: 10.1080/00071668.2015.1019829] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
1. Mutations in growth differentiation factor 9 (GDF9) and bone morphogenetic protein 15 (BMP15) are significantly associated with reproductive performance in mammals and the objective of the present study was to identify polymorphic sites and elucidate the association between genotypes in BMP15 and GDF9 and egg production. 2. Polymorphisms in BMP15 exon1 and GDF9 exon2 were detected by DNA sequencing and PCR-RFLP. Three SNPs were detected in each of BMP15 (A111G, C231T and C34T) and GDF9 (G593A, T824C and C896T). C34T leads to the substitution of Leu by Phe, which was predicted to affect protein function. 3. Results of the association analysis indicated that C34T had an effect on total egg production at 300 d of age (EN) and age at first laying (AFE). G593A affected EN and both C231T and C896T influenced AFE. The TGC1TGC1 diplotype in BMP15 had the highest EN. 4. In conclusion, EN may be significantly improved by marker-assisted selection of the BMP15 genotypes in maternal lines of Shaobo hens.
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Huang HY, Kuo LY, Cheng FH, Chen JC, Hsu CL, Chen BY, Lin YS, Tsai HY, Wei J. Prognostic value of oxygen consumption and ventilatory equivalent slope in female candidates referred for heart transplantation--experience of a single Asian center. Transplant Proc 2014; 46:897-9. [PMID: 24767375 DOI: 10.1016/j.transproceed.2013.09.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Accepted: 09/26/2013] [Indexed: 11/19/2022]
Abstract
BACKGROUND Ventilatory equivalent (ventilation/CO2 production, VE/VCO2) slope has been suggested to be a much more accurate predicator than peak oxygen consumption (VO2) during exercise for prognosis in patients with heart failure. However, patients tested were predominately male. METHODS To investigate whether peak VO2 and VE/VCO2 slope predict the prognosis of female patients with heart failure, we retrospectively collected data of 39 female candidates referred for heart transplantation (HTx) from 2004 to 2011. Both peak VO2 and VE/VCO2 slope were obtained from the results of an exercise pulmonary function test. The outcome was death or mechanical devices implantation or HTx. Logistic regression was used for data analysis. RESULTS Mean age and heart failure survival score were 55.8 ± 13.7 years and 7.3 ± 0.7, respectively. Each increment of VE/VCO2 slope decreased 2-year event-free rate (odds ratio [OR] = 0.88, 95% confidence interval [CI] = 0.79 to 0.98) in the female group. The predictions of VE/VCO2 slope for 1-year event-free survival did not reach statistical significance (OR = 0.92, 95% CI = 0.84 to 1.00). On the other hand, peak VO2 was not a strong predictor for 1- and 2-year event-free survival (OR = 1.22 and 1.16, 95% CI = 0.96 to 1.55 and 0.94 to 1.44, respectively). CONCLUSIONS Impairment in exercise ventilation holds a clinical and long-term prognostic impact in female patients with heart failure. The role of peak VO2 during exercise in prognostic prediction among the cohort should be further investigated.
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Lai CH, Fung HS, Wu WB, Huang HY, Fu HW, Lin SW, Huang SW, Chiu CC, Wang DJ, Huang LJ, Tseng TC, Chung SC, Chen CT, Huang DJ. Highly efficient beamline and spectrometer for inelastic soft X-ray scattering at high resolution. JOURNAL OF SYNCHROTRON RADIATION 2014; 21:325-332. [PMID: 24562553 DOI: 10.1107/s1600577513030877] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 11/10/2013] [Indexed: 06/03/2023]
Abstract
The design, construction and commissioning of a beamline and spectrometer for inelastic soft X-ray scattering at high resolution in a highly efficient system are presented. Based on the energy-compensation principle of grating dispersion, the design of the monochromator-spectrometer system greatly enhances the efficiency of measurement of inelastic soft X-rays scattering. Comprising two bendable gratings, the set-up effectively diminishes the defocus and coma aberrations. At commissioning, this system showed results of spin-flip, d-d and charge-transfer excitations of NiO. These results are consistent with published results but exhibit improved spectral resolution and increased efficiency of measurement. The best energy resolution of the set-up in terms of full width at half-maximum is 108 meV at an incident photon energy tuned about the Ni L3-edge.
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Huang HY, Wu YH, Kuo CF. Klebsiella pneumoniae sepsis with unusual cutaneous presentation of generalized pustulosis. Clin Exp Dermatol 2014; 38:626-9. [PMID: 23837936 DOI: 10.1111/ced.12092] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2012] [Indexed: 11/27/2022]
Abstract
Klebsiella pneumoniae is a well-known Gram-negative pyogenic pathogen that can cause various types of infection. Liver abscesses caused by community-acquired K. pneumoniae infection are commonly reported in Taiwan, especially in people with diabetes mellitus. Meningococcal bacteraemia can present as disseminated pustules and leucocytoclastic vasculitis, but it has rarely been seen in patients with K. pneumoniae infection. To date, there are only two reports in the English literature about K. pneumoniae bacteraemia presenting as generalized pustulosis. We report a third case, occurring in a Taiwanese woman with a community-acquired K. pneumoniae liver abscess leading to sepsis and generalized pustules, complicated by cutaneous leucocytoclastic vasculitis.
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Jiang BQ, Lan J, Huang HY, Liang J, Ma XN, Huo LD, Xu X. A clinical study on the effectiveness of implant supported dental restoration in patients with chronic periodontal diseases. Int J Oral Maxillofac Surg 2013; 42:256-9. [PMID: 23021323 DOI: 10.1016/j.ijom.2012.08.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 05/19/2012] [Accepted: 08/01/2012] [Indexed: 11/29/2022]
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Huang HY, Li SF, Zhao ZH, Liang Z, Zhang J, Ding YR. Association of polymorphisms for nuclear receptor coactivator 1 gene with egg production traits in the maternal line of Shaobo hens. Br Poult Sci 2011; 52:328-32. [PMID: 21732878 DOI: 10.1080/00071668.2011.577057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
1. The objectives of the study were to find polymorphic sites and elucidate the association between SNPs in the nuclear receptor coactivator 1 (NCOA1) gene and reproductive traits. 2. SNPs were detected by PCR-SSCP and DNA sequencing. Four SNPs were detected, including T10155007A, T10125838C, G10118492A and G10109315T. Three polymorphisms were associated with total egg production at the age of 300 d and the G10109315T polymorphism was associated with age at first egg. 3. In conclusion, the NCOA1 gene can be used as a molecular marker for reproductive traits in hens.
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Zhang JX, Xie CM, Zhu ZW, Huang HY, Zeng ZL. Potential role of AQP1 and VEGF in the development of malignant pleural effusion in mice. Med Oncol 2011; 29:656-62. [PMID: 21519870 DOI: 10.1007/s12032-011-9960-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2011] [Accepted: 04/15/2011] [Indexed: 10/18/2022]
Abstract
Recent studies have revealed the important role of aquaporin-1 (AQP1) in tumor cell migration and angiogenesis. However, the function of AQP1 in malignant pleural effusion has not been well characterized. We established a mouse model to examine the role of AQP1 and vascular endothelial growth factor (VEGF) in the development of malignant pleural effusion. We showed that elevated expressions of AQP1 mRNA and VEGF protein were associated with increased volume of malignant pleural effusion. These results suggest that AQP1 and VEGF play important roles in the development of malignant pleural effusion in mice, which may help us find new strategies for the prevention and treatment of malignant pleural effusion.
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Hsieh RL, Huang HY, Lin MI, Wu CW, Lee WC. Quality of life, health satisfaction and family impact on caregivers of children with developmental delays. Child Care Health Dev 2009; 35:243-9. [PMID: 19134010 DOI: 10.1111/j.1365-2214.2008.00927.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To study the quality of life, health satisfaction and family impact on caregivers of children with developmental delays in Taiwan. DESIGN Cross-sectional study. SUBJECTS The caregivers of children with diagnoses of developmental delays recruited from a teaching hospital in northern Taiwan. METHODS The main caregivers of 48 male and 22 female children with developmental delays were recruited. WHOQOL-BREF for health-related quality of life (HRQOL), PedsQL-Health Satisfaction for health satisfaction, PedsQL-Family Impact Module and Impact on Family Scale for family impact were evaluated. The correlation of caregivers' HRQOL, health satisfaction and family impact were also studied. RESULTS Caregivers in nuclear families had higher health satisfaction scores (78.2 for nuclear families vs. 66.9 for extended families, P < 0.05) when assessed by the PedQL-Health Satisfaction questionnaire. Children's age was negatively correlated with family impact, including parent (-0.272, P = 0.023), family (-0.262, P = 0.029) and total scores (-0.281, P = 0.018) as assessed using the PedsQL-Family Impact Module. CONCLUSION A negative relation between impact of burden and child's age suggests that family members gradually adapt to the delayed developmental status in their children as they grow. Caregivers in nuclear families having higher health satisfaction than those in extended families may be due to Chinese cultural effects.
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Wang CW, Horng SG, Chen CK, Huang HY, Soong YK. AC-008 Use of an aromatase inhibitor and alternate-day gonadotrophin in superovulatory cycles for intrauterine insemination in patients with a thin endometrium. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60456-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Chen CK, Wang CW, Huang HY, Wang HS, Soong YK. AC-030 Preimplantation genetic screening below 35 years of age. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60478-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Brewster AM, Jorgensen TJ, Ruczinski I, Huang HY, Hoffman S, Thuita L, Newschaffer C, Lunn RM, Bell D, Helzlsouer KJ. Polymorphisms of the DNA repair genes XPD (Lys751Gln) and XRCC1 (Arg399Gln and Arg194Trp): relationship to breast cancer risk and familial predisposition to breast cancer. Breast Cancer Res Treat 2005; 95:73-80. [PMID: 16319991 DOI: 10.1007/s10549-005-9045-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2005] [Accepted: 08/03/2005] [Indexed: 11/29/2022]
Abstract
Family history is a risk factor for breast cancer and could be due to shared environmental factors or polymorphisms of cancer susceptibility genes. Deficient function of DNA repair enzymes may partially explain familial risk as polymorphisms of DNA repair genes have been associated, although inconsistently, with breast cancer. This population based case-control study examined the association between polymorphisms in XPD (Lys751Gln) and XRCC1 (Arg399Gln and Arg194Trp) genes, and breast cancer. Breast cancer cases (n=321) and controls (n=321) were matched on age and menopausal status. Conditional logistic regression was used to estimate odds ratios (OR) and 95% confidence intervals (CI). The analysis was conducted omitting observations with missing data, and by using imputation methods to handle missing data. No significant association was observed between the XPD 751Gln/Lys (OR 1.37, 95% CI 0.96-1.96) and Gln/Gln genotypes (OR 1.08, 95% CI 0.62-1.86) (referent Lys/Lys), XRCC1 399Arg/Gln (OR 1.48, 95% CI 0.92-2.38) and Gln/Gln genotypes (1.11, 95% CI 0.67-1.83) (referent Arg/Arg) or the XRCC1 Arg/Trp and Trp/Trp genotypes (OR 1.12, 95% CI 0.69-1.83) (referent Arg/Arg) and breast cancer. In multivariate analysis, the adjusted odds ratios for the XPD and XRCC1 399 polymorphisms increased and became statistically significant, however, were attenuated when imputation methods were used to handle missing data. There was no interaction with family history. These results indicate that these polymorphisms in XPD and XRCC1 genes are only weakly associated with breast cancer. Without imputation methods for handling missing data, a statistically significant association was observed between the genotypes and breast cancer, illustrating the potential for bias in studies that inadequately handle missing data.
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Chang RS, Lee DY, Chen WY, Huang RN, Huang HY, Hsu JH, Lin PL. Method for producing coded micro-carrier and test method by using a novel type biochip. J Biotechnol 2004; 108:1-9. [PMID: 14741764 DOI: 10.1016/j.jbiotec.2003.10.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This paper provides a method for producing a novel type coded micro-carrier. A simple and cost effective solution for bio-molecule applications was developed. Application relevant items such as manufacture process, biospecific interaction, and analysis method are discussed. For low cost fabrication, the use of LIGA-like process is suggested. LIGA-like process is used as a dry patterning process in which an intense beam of light from an excimer laser is used to pattern a material directly. This process has found extensive application in the microelectronics industry for patterning of polymer materials. The use of LIGA-like techniques offers two attractive features: first, we can cut the polymer into many tiny micro-carriers with micrometer precision. Second, LIGA-like process allows to encode with high precision spatial information onto the micro-carrier that can be used in the identification of the bio-molecule. This paper gives a description of the basic idea, describes the fabrication of the novel micro-carrier that we called "coded micro-carrier," and of the image processing algorithms used for the analysis of bio-molecules. This study also provides a test method for identifying a bio-molecule, which includes mixing several coded micro-carriers with the hybridized unknown bio-molecules; and identifying the codes on the micro-carrier via image recognition system. The numbers and types of the known micro-carrier can be flexibly adjusted according to the number of tested bio-molecules.
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Cheng SL, Chang SM, Huang HY, Chen LJ, Tsai CJ. Transmission electron microscopy investigation of the formation of C54-TiSi(2) phase on stressed (001)Si. Micron 2002; 33:543-7. [PMID: 12020699 DOI: 10.1016/s0968-4328(02)00009-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The effects of stress on the formation of C54-TiSi2 phase in Ti/(001)Si samples have been investigated by high-resolution transmission electron microscopy in conjunction with auto-correlation function (ACF) analysis. The C54-TiSi2 phase transformation temperature in tensily stressed samples was found to be lowered by about 100 degrees C than that in compressively stressed samples. The thickness of amorphous interlayers (a-interlayers) between Ti metal thin films and Si substrates was found to be thicker and thinner in the tensily and compressively stressed Si samples, respectively. Furthermore, the thicker a-interlayer was found to consist of a higher density of crystallites from the ACF analysis. With a higher density of crystallites in the a-interlayer, the grain size of C49-TiSi2 was reduced since more nucleation sites are available for the formation of C49-TiSi2. The small grain size of C49-TiSi2 in turn enhances the formation of C54-TiSi2. As a result, the phase transformation of C49- to C54-TiSi2 is enhanced by the tensile stress present in silicon substrates.
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Huang HY, Wilkie DJ, Schubert MM, Ting LL. Symptom profile of nasopharyngeal cancer patients during radiation therapy. CANCER PRACTICE 2002. [PMID: 11898144 DOI: 10.1111/j.1523-5394.2000.86007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
PURPOSE This prospective, longitudinal study was aimed to describe the prevalence, severity, and pattern of symptoms over the course of radiation therapy in persons with nasopharyngeal carcinoma and to explore symptom severity by treatment modality. DESCRIPTION OF STUDY Thirty-seven patients completed this study, and 46% received chemotherapy before radiation therapy. A self-reported radiation symptom checklist and an objective mucositis assessment tool were used weekly to document oropharyngeal, skin, nose or ear, or more general side effects, and mucositis. RESULTS Oropharyngeal problems were the most severe complaints during radiation therapy. All patients experienced dry mouth, taste change, difficulty in swallowing, difficulty in opening their mouths, hoarseness, sore throat, and observable mucositis. Most reported moderate-to-severe dry mouth, difficulty in swallowing, and sore throat from weeks 3 through 7. Skin problems were not prominent until week 4. Patients also lost an average of 3.9 kg during the therapy. Sequential chemotherapy and radiation therapy was associated with more severe oropharyngeal problems than radiation therapy alone, but no significant differences in other problems were found. CLINICAL IMPLICATIONS Despite recognition of the oropharyngeal side effects associated with irradiation, effective management protocols for such symptoms have not been implemented in the studied institution. The frequency and intensity of the symptoms reported indicate an urgent need for increased vigilance about radiation-related side effects and pain management. As well, patient education about expected side effects may help mitigate the anxiety that patients experience when these symptoms occur.
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Xie FY, Huang HY, Hu JZ. [Observation on effect of radiotherapy and antike capsule combination therapy in treating nasopharyngeal cancer patients]. ZHONGGUO ZHONG XI YI JIE HE ZA ZHI ZHONGGUO ZHONGXIYI JIEHE ZAZHI = CHINESE JOURNAL OF INTEGRATED TRADITIONAL AND WESTERN MEDICINE 2001; 21:888-90. [PMID: 12575586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To compare the effect of radiotherapy (RT) combined with Antike capsule (AC) and RT alone in treating nasopharyngeal cancer (NPC) patients. METHODS Eighty-nine patients with pathologically confirmed NPC (stage II-IV) were randomly divided into two groups: group A (46 cases) were treated with RT, receiving 65-70 Gy/6.5-7 weeks to nasopharynx region and the same dosage to neck region, and AC was given in combination. Group B (43 cases) received the same RT alone. The total dosis of RT for complete remission (CR) of primary nasopharyngeal tumor and neck lymph nodes, the CR rate and the changes of peripheral NK cell, T lymphocyte subsets in the two groups were compared. RESULTS The total dosis of RT for CR in group A and B were 41.6 +/- 8.9 Gy vs 50.7 +/- 9.2 Gy for primary nasopharyngeal tumor, P < 0.05 and 47.4 +/- 10.3 Gy vs 56.2 +/- 9.7 Gy for neck lymph nodes, P < 0.05. The CR rate of primary nasopharyngeal tumor in group A and B were 93.5% and 88.4% respectively, P < 0.05. The activity of NK cell as well as T3, T4 in peripheral blood increased significantly in the group A after treatment, P < 0.05, while in group B, T3, T4 lowered significantly, P < 0.05. CONCLUSION RT combined with AC could be helpful in elevating and promoting the remission rate of primary tumor and neck lymph nodes, and AC has some effects in improving the immune function and general condition in NPC patients during RT.
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Huang HY, Ho CC, Huang PH, Hsu SM. Co-expression of VEGF-C and its receptors, VEGFR-2 and VEGFR-3, in endothelial cells of lymphangioma. Implication in autocrine or paracrine regulation of lymphangioma. J Transl Med 2001; 81:1729-34. [PMID: 11742043 DOI: 10.1038/labinvest.3780386] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Lymphangioma has long been thought of as congenital malformations resulting from the failure of lymphatic vessels communicating with the venous system in the fetal period. Alternatively, it is proposed to be true neoplasm originated from the transformation of lymphatic endothelia. To extend the molecular basis of the pathogenesis of lymphangioma, we have characterized the expression of vascular endothelial growth factor (VEGF) and VEGF receptors (VEGFR) in 29 cases of lymphangioma by RNA in situ hybridization. Endothelial cells of lymphangioma co-express transcripts of VEGF-C and its receptors VEGFR-3 (Flt4) and VEGFR-2 (Flk1), which are not detectable in the adjacent connective tissue. In contrast, there is little or no expression of VEGF-C, VEGFR-3, and VEGFR-2 mRNA in endothelial cells of hemangiomas, angiosarcomas, or normal lymphatic vessels of the small or large intestines. The results suggest that VEGF-C and its receptors may take active parts in the formation of lymphangioma by autocrine or paracrine regulation.
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Wilkie DJ, Huang HY, Reilly N, Cain KC. Nociceptive and neuropathic pain in patients with lung cancer: a comparison of pain quality descriptors. J Pain Symptom Manage 2001; 22:899-910. [PMID: 11728793 PMCID: PMC3682837 DOI: 10.1016/s0885-3924(01)00351-7] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Predictive validity of each word from the McGill Pain Questionnaire (MPQ) has not been investigated in relation to pain etiology. The purpose of this study was to explore differences in the words used to describe nociceptive and neuropathic pain. Patients with lung cancer (N = 123) selected words from the 78 MPQ pain quality descriptors and indicated the corresponding pain site for each word. Using only the MPQ pain location, and the cancer and treatment data abstracted from medical records, each pain site was classified as nociceptive or neuropathic (etiology). Pain etiology and quality descriptors were tested for proportional differences with sensitivity, specificity, and predictive value calculated for statistically significant descriptors. Of the 457 pain sites, 343 were classified as nociceptive (75%), 114 as neuropathic (25%). Lacerating, stinging, heavy, and suffocating were selected for a significantly larger proportion of nociceptive sites whereas throbbing, aching, numb, tender, punishing, pulling, tugging, pricking, penetrating, punishing, miserable, and nagging were selected for a larger proportion of neuropathic sites. Ten words correctly predicted 78% of the sites with 81% sensitivity to nociceptive pain and 59% sensitivity to neuropathic pain. Interestingly, several pain quality descriptors (burning, shooting, flashing, tingling, itching, and cold) previously associated with neuropathic pain did not distinguish between neuropathic and nociceptive pain. Infrequent selection of many MPQ words and lack of neurological exam data in the medical records are possible explanations for inconsistency with previous literature. Prospective studies are needed to validate pain quality descriptors for nociceptive and neuropathic types of lung cancer pain.
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Huang HY, Liang CL, Yang BY, Sung MT, Lin JW, Chen WJ. Isolated Rosai-Dorfman disease presenting as peripheral mononeuropathy and clinically mimicking a neurogenic tumor: case report. SURGICAL NEUROLOGY 2001; 56:344-7. [PMID: 11750016 DOI: 10.1016/s0090-3019(01)00577-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Rosai-Dorfman disease is a rare idiopathic disorder of proliferative histiocytes affecting the lymph nodes. It usually manifests as bilateral cervical lymphadenopathy and fever with concurrent polyhyperglobulinemia. Cases involving the nervous system are quite rare; most CNS lesions are located intracranially or arise from the spinal dura or leptomeninges. To our knowledge, there has been no previous report of isolated Rosai-Dorfman disease presenting as peripheral mononeuropathy. CASE REPORT We report a 43-year-old female with isolated extranodal Rosai-Dorfman disease in the medial aspect of the right upper arm, which presented as aberrant ulnar neuropathy caused by a mass encasing the right basilic vein and the medial anteriobrachial cutaneous branch of the right ulnar nerve. Preoperative diagnosis was a neurogenic tumor. The patient underwent excision of the mass, and pathologic examination confirmed the diagnosis of Rosai-Dorfman disease. CONCLUSION An unusual case of extranodal isolated Rosai-Dorfman disease, presenting as peripheral mononeuropathy, is reported. Clinically, it simulated a neurogenic tumor, extending the etiologic spectrum of entrapment neuropathy of the peripheral nerve.
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Wilkie DJ, Huang HY, Berry DL, Schwartz A, Lin YC, Ko NY, Chen A, Gralow J, Lindsley SK, Fitzgibbon D. Cancer symptom control: feasibility of a tailored, interactive computerized program for patients. FAMILY & COMMUNITY HEALTH 2001; 24:48-62. [PMID: 11563944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
This study evaluated the feasibility of an innovative computerized symptom assessment tool, SymptomReport, and a computerized, tailored education tool, SymptomConsult, in a sample of 41 outpatients with cancer. After patients completed the computerized programs, an audiotaped telephone interview was conducted to assess patients' impressions. The study found that patients required less than 40 minutes on average to complete SymptomReport. The mean acceptability score was high 11 +/- 2. The 12 patients who completed SymptomConsult did so in an average of 20 minutes. The majority of participants indicated that the computer programs were easy, enjoyable, and informative tools. Initial formative research supports further study of these feasible computerized programs.
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Fan CY, Liu KL, Huang HY, Barnes EL, Swalsky PA, Bakker A, Woods J, Finkelstein SD. Frequent allelic imbalance and loss of protein expression of the DNA repair gene hOGG1 in head and neck squamous cell carcinoma. J Transl Med 2001; 81:1429-38. [PMID: 11598155 DOI: 10.1038/labinvest.3780356] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Reactive oxygen species produced by aerobic cellular metabolism or through exposure to environmental carcinogens can cause oxidative DNA damage by generating DNA base lesions and strand breakage. Prime among these base lesions is the conversion of guanine to 8-oxoguanine. Among 20 or so oxidative DNA base lesions, 8-oxoguanine is the most abundant and is critical in terms of mutagenesis because it is capable of mispairing with adenine, which, if not sufficiently repaired, may lead to G:C to T:A transversion upon DNA replication. The gene encoding human 8-oxoguanine DNA glycosylase 1 (hOGG1), capable of excision repair of 8-oxoguanine, has been recently cloned, characterized, and mapped to the short arm of chromosome 3 (3p25-26), a region showing frequent loss of heterozygosity (LOH) in head and neck squamous cell carcinoma (HNSCC). In the present study, we developed a tissue microdissection approach designed for use with formalin-fixed, paraffin-embedded specimens which is capable of detecting and characterizing the hOGG1 allelic loss using two highly informative, intragenic single nucleotide polymorphisms. Among 45 cases of HNSCC, 18 cases were informative. We analyzed these 18 cases and found that 11 showed evidence of hOGG1 allelic loss. By immunohistochemical staining on a total of 71 HNSCC cases using a commercially available anti-hOGG1 antibody, we showed that hOGG1 gene expression was markedly suppressed in up to 38% of the cases. The frequent allelic imbalance and suppression of the hOGG1 gene thus imply that repair for oxidative DNA damages may be relevant in future studies on head and neck squamous carcinogenesis.
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Wang CJ, Huang HY, Chen HH, Pai CH, Yang KD. Effect of shock wave therapy on acute fractures of the tibia: a study in a dog model. Clin Orthop Relat Res 2001:112-8. [PMID: 11400871 DOI: 10.1097/00003086-200106000-00015] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The effect of shock wave therapy on acute fractures of the tibia was studied in eight adult dogs. A fracture with a 3-mm gap was created in both tibias and the fractures were fixed internally with a small metallic plate and screws. Each of the right limbs received 2,000 impulses of shock waves at 14 kV whereas the left limbs were used as controls. The evaluations included the callus formations based on serial radiographic examinations at 1, 4, 8, and 12 weeks and histologic examinations at 12 weeks for tissue distribution including bone tissues. Based on radiographic findings, there was no statistically significant difference in the amount of callus formation between the treated and the control groups at 8 weeks or less. However, the radiographic findings at 12 weeks statistically showed more callus formations in the treated group. In histologic examinations, there was significantly more cortical bone formation in the treated group at 12 weeks and the bone tissues were thicker, denser, and heavier. Shock wave therapy enhanced callus formation and induced cortical bone formation in acute fractures in dogs at 12 weeks. The effect of shock wave therapy seemed to be time-dependent at 3 months.
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Sun Q, Wang JS, Li R, Zhou P, Huang HY, Han H. [Establishment of suc2 signal sequence trap system]. YI CHUAN XUE BAO = ACTA GENETICA SINICA 2001; 28:379-84. [PMID: 11329881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
The secretion of proteins depends on the signal peptide located to the N-terminal of the protein precursor. We established a genetic system in yeast to screen cDNA library for the signal peptide encoding sequences. To do it, we mutated genomic suc2 gene (encoding yeast invertase) of EGY48 by one-step gene disruption method, and got yeast cell lines without invertase expression (EGY48-delta suc). To get vector for library screening, we inserted suc2 gene encoding mature peptide of invertase downstream to yeast promoter P-ADH1, and multiple cloning sites for insertion of library is between suc2 and P-ADH1. EGY48-delta suc transformed with the vector can grow on the medium with glucose as carbon source, but not on the medium with raffinose. Signal peptide of suc2 and alpha chain of human interleukin-2 was fused in frame to suc2 gene, then the two resulting vectors were transformed into EGY48-delta suc, all the transformants can grow in the medium with either raffinose or glucose as carbon source. Hence, the system established here can discern cDNA encoding signal peptide from the one not encoding signal peptide.
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Laden F, Collman G, Iwamoto K, Alberg AJ, Berkowitz GS, Freudenheim JL, Hankinson SE, Helzlsouer KJ, Holford TR, Huang HY, Moysich KB, Tessari JD, Wolff MS, Zheng T, Hunter DJ. 1,1-Dichloro-2,2-bis(p-chlorophenyl)ethylene and Polychlorinated Biphenyls and Breast Cancer: Combined Analysis of Five U.S. Studies. J Natl Cancer Inst 2001; 93:768-76. [PMID: 11353787 DOI: 10.1093/jnci/93.10.768] [Citation(s) in RCA: 108] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Environmental exposure to organochlorines has been examined as a potential risk factor for breast cancer. In 1993, five large U.S. studies of women located mainly in the northeastern United States were funded to evaluate the association of levels of 1,1-dichloro-2,2-bis(p-chlorophenyl) ethylene (DDE) and polychlorinated biphenyls (PCBs) in blood plasma or serum with breast cancer risk. We present a combined analysis of these results to increase precision and to maximize statistical power to detect effect modification by other breast cancer risk factors. METHODS We reanalyzed the data from these five studies, consisting of 1400 case patients with breast cancer and 1642 control subjects, by use of a standardized approach to control for confounding and assess effect modification. We calculated pooled odds ratios (ORs) and 95% confidence intervals (CIs) by use of the random-effects model. All statistical tests were two-sided. RESULTS When we compared women in the fifth quintile of lipid-adjusted values with those in the first quintile, the multivariate pooled OR for breast cancer associated with PCBs was 0.94 (95% CI = 0.73 to 1.21), and that associated with DDE was 0.99 (95% CI = 0.77 to 1.27). Although in the original studies there were suggestions of elevated breast cancer risk associated with PCBs in certain groups of women stratified by parity and lactation, these observations were not evident in the pooled analysis. No statistically significant associations were observed in any other stratified analyses, except for an increased risk with higher levels of PCBs among women in the middle tertile of body mass index (25-29.9 kg/m(2)); however, the risk was statistically nonsignificantly decreased among heavier women. CONCLUSIONS Combined evidence does not support an association of breast cancer risk with plasma/serum concentrations of PCBs or DDE. Exposure to these compounds, as measured in adult women, is unlikely to explain the high rates of breast cancer experienced in the northeastern United States.
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91
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Huang HY, Raga F, Kruessel JS, Wen Y, Soong YK, Polan ML. Gonadotropin-releasing hormone messenger ribonucleic acid and protein expression in Vero cells. J Assist Reprod Genet 2001; 18:268-75. [PMID: 11464578 PMCID: PMC3455332 DOI: 10.1023/a:1016670402390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
PURPOSE Interleukin-1 (IL-1) is a major regulator of local cellular interactions during embryonic implantation. We hypothesized that gonadotropin-releasing hormone (GnRH) may also play a role in the embryonic/epithelial dialogue during early implantation. To examine this hypothesis, we examined the ability of IL-1 to regulate GnRH mRNA and protein expression in Vero cells. METHODS Viable Vero cells (1 x 10(5)/well) were cultured in multiple-well tissue culture plates for in vitro studies and in 4-well chamber slides for immunohistochemical study. Confluent Vero cells were cultured with increasing concentrations of recombinant human IL-1 beta for an additional 24 hr. Vero cell expression of GnRH and GnRH receptor mRNAs was measured with polymerase chain reaction (PCR) and nested PCR, respectively. GnRH protein expression was validated by immunohistochemistry study. The quantitative level of GnRH mRNA expression regulated by IL-1 beta in Vero cells was determined by quantitative competitive PCR (QC PCR) with standard curve methodology. RESULTS RT-PCR revealed beta-actin, GnRH, and GnRH receptor mRNA expression in Vero cell cultures. Immunostaining confirmed the presence of GnRH protein in Vero cells. Quantitative PCR demonstrated IL-1 beta up-regulation of Vero cell GnRH mRNA expression (p < 0.05). CONCLUSIONS These results suggest that Vero cell mRNA and protein expression of GnRH may play a substantial role in early embryo/epithelial dialogue during embryo coculture, with an embryotrophic effect due to expression of GnRH by Vero cells.
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92
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Xie FY, Zeng ZF, Huang HY. [Clinical observation on nasopharyngeal carcinoma treated with combined therapy of radiotherapy and ginseng polysaccharide injection]. ZHONGGUO ZHONG XI YI JIE HE ZA ZHI ZHONGGUO ZHONGXIYI JIEHE ZAZHI = CHINESE JOURNAL OF INTEGRATED TRADITIONAL AND WESTERN MEDICINE 2001; 21:332-4. [PMID: 12577414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To observe the effect of radiotherapy (RT) combined with Ginseng polysaccharide (GSP) injection in treating nasopharyngeal carcinoma (NPC) and its influence on immune function. METHODS One hundred and thirty-one NPC patients were randomly divided into two groups, 64 cases in the RT-GSP group treated with RT-GSP and 67 in the control group treated with conventional therapy, to observe the local cancer remission rate, 1-year total survival rate, no tumor survival rate and no remote metastasis survival rate. Moreover, the changes of T-lymphocyte subsets, natural killer (NK) cell activity and lymphocyte activated killer (LAK) cell activity before and after treatment were observed. RESULTS Clinical examination conducted 3 months after treatment showed that the complete remission rete in the RT-GSP group was 96.6%, and in the control group 93.3%, the complete remission rate of cervical node metastatic tumor in the two groups was 85.7% and 78.0% respectively, and the NPC CT remission rate 60.3% and 51.7% respectively. Re-examination carried out 1 year after RT treatment showed that the total survival rate in the two groups was 100% and 96.5%, no tumor survival rate 84.4% and 74.6%, and no remote metastasis survival rate was 93.8% and 88.1% respectively. The activity of NK cell and LAK cell as well as T3, T4 value in peripheral blood increased significantly in the RT-GSP group (all P < 0.05) after treatment, while in the control group, activity of NK cell and LAK cell changed insignificantly after treatment, and T3, T4 value lowered significantly (P < 0.05). No toxic-adverse reaction of GSP was found. CONCLUSION GSP has certain improving immune function effect in NPC patients during RT, it could also eliminate the occurred adverse reaction to RT and the general condition of patients.
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Zhang ZT, Pak J, Huang HY, Shapiro E, Sun TT, Pellicer A, Wu XR. Role of Ha-ras activation in superficial papillary pathway of urothelial tumor formation. Oncogene 2001; 20:1973-80. [PMID: 11360181 DOI: 10.1038/sj.onc.1204315] [Citation(s) in RCA: 130] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2000] [Revised: 01/25/2001] [Accepted: 01/29/2001] [Indexed: 11/09/2022]
Abstract
Urothelial tumors develop along two distinctive phenotypic pathways (superficial papillary non-invasive tumors versus flat carcinoma in situ lesions), with markedly different biological behavior and prognosis. Although multiple genetic alterations have been identified in human bladder cancer, their cause-effect relationship with the two pathways has not been firmly established. Using a urothelium-specific promoter of the uroplakin II gene, we showed earlier in transgenic mice that the urothelial expression of SV40T antigen, which inactivates p53 and pRb, induced carcinoma in situ and invasive and metastatic bladder cancer. In striking contrast, we demonstrate here that the urothelial expression of an activated Ha-ras in transgenic mice caused urothelial hyperplasia and superficial papillary non-invasive bladder tumors. These results provide strong, direct experimental evidence that the two phenotypical pathways of bladder tumorigenesis are caused by distinctive genetic defects. Our results indicate that Ha-ras activation can induce urothelial proliferation in vivo; and that urothelial hyperplasia is a precursor of low-grade, superficial papillary bladder tumors. Our transgenic models provide unique opportunities to study the detailed molecular events underlying different types of bladder neoplasms, and can serve as useful preclinical models for evaluating the in vivo efficacy of preventive and therapeutic agents that act on various signaling pathways in bladder cancer.
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Huang HY, Wen Y, Kruessel JS, Raga F, Soong YK, Polan ML. Interleukin (IL)-1beta regulation of IL-1beta and IL-1 receptor antagonist expression in cultured human endometrial stromal cells. J Clin Endocrinol Metab 2001; 86:1387-93. [PMID: 11238536 DOI: 10.1210/jcem.86.3.7284] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The interleukin (IL)-1 system is a major regulator of local cellular interactions during embryonic implantation. Because IL-1beta and IL receptor antagonist (IL-1ra) are both expressed in human endometrium, we hypothesized that an appropriate ratio of IL-1beta to IL-1ra might favor the process of embryo implantation. Therefore, we investigated IL-1 regulation of the quantitative ratio of IL-1beta/IL-1ra messenger RNA (mRNA) expression in human endometrial stromal cells using quantitative competitive PCR, as well as intracellular protein expression after stromal cell solubilization. Confluent stromal cell cultures were stimulated with human IL-1beta (0-1000 IU/mL) for 24 h. After 24 h, total RNA was extracted, reverse transcribed, and coamplified by PCR with a defined amount of internal standard. The quantitative ratio was determined by the density of target to the internal standard. After culture with IL-1beta for 24 and 48 h, stromal cells were solubilized, and the intracellular protein levels of IL-1beta and IL-1ra were measured by enzyme-linked immunosorbent assay. The IL-1beta and IL-1ra mRNA were both up-regulated, and IL-1R tI mRNA was down-regulated, by IL-1beta in a dose-dependent manner. The quantitative ratio of IL-1beta to IL-1ra mRNA was constant with the presence of increasing concentrations of IL-1beta (1-1000 IU/mL). IL-1beta and IL-1ra protein was not detected in conditioned media of cultures before addition of IL-1beta. IL-1beta and IL-1ra protein levels increased with increasing amounts of IL-1beta after solubilization of stromal cells. The IL-1beta was detectable after 12 h of culture, in comparison with IL-1ra, which was detectable after 24 h of IL-1beta stimulation. These results suggest that IL-1 may play a crucial role in embryo-maternal interaction by regulating stromal cell expression of IL-1beta and IL-1ra, resulting in an appropriate ratio during the process of embryonic implantation.
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Helzlsouer KJ, Huang HY, Alberg AJ, Hoffman S, Burke A, Norkus EP, Morris JS, Comstock GW. Association between alpha-tocopherol, gamma-tocopherol, selenium, and subsequent prostate cancer. J Natl Cancer Inst 2000; 92:2018-23. [PMID: 11121464 DOI: 10.1093/jnci/92.24.2018] [Citation(s) in RCA: 290] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Selenium and alpha-tocopherol, the major form of vitamin E in supplements, appear to have a protective effect against prostate cancer. However, little attention has been paid to the possible role of gamma-tocopherol, a major component of vitamin E in the U.S. diet and the second most common tocopherol in human serum. A nested case-control study was conducted to examine the associations of alpha-tocopherol, gamma-tocopherol, and selenium with incident prostate cancer. METHODS In 1989, a total of 10,456 male residents of Washington County, MD, donated blood for a specimen bank. A total of 117 of 145 men who developed prostate cancer and 233 matched control subjects had toenail and plasma samples available for assays of selenium, alpha-tocopherol, and gamma-tocopherol. The association between the micronutrient concentrations and the development of prostate cancer was assessed by conditional logistic regression analysis. All statistical tests were two-sided. RESULTS The risk of prostate cancer declined, but not linearly, with increasing concentrations of alpha-tocopherol (odds ratio (highest versus lowest fifth) = 0.65; 95% confidence interval = 0.32--1.32; P(trend) =.28). For gamma-tocopherol, men in the highest fifth of the distribution had a fivefold reduction in the risk of developing prostate cancer than men in the lowest fifth (P:(trend) =.002). The association between selenium and prostate cancer risk was in the protective direction with individuals in the top four fifths of the distribution having a reduced risk of prostate cancer compared with individuals in the bottom fifth (P(trend) =.27). Statistically significant protective associations for high levels of selenium and alpha-tocopherol were observed only when gamma-tocopherol concentrations were high. CONCLUSIONS The use of combined alpha- and gamma- tocopherol supplements should be considered in upcoming prostate cancer prevention trials, given the observed interaction between alpha-tocopherol, gamma-tocopherol, and selenium.
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Goto S, Lin YC, Lin CL, Lord R, Lee CM, Pan TL, Chiang KC, Lai CY, Tseng HP, Hsu LW, Huang HY, Lee TH, Yokoyama H, Kitano S, Chen CL. Activation of telomerase by liver transplantation in rats. Transplant Proc 2000; 32:2376-7. [PMID: 11120207 DOI: 10.1016/s0041-1345(00)01706-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chiang KC, Chen CL, Lin CL, Lin YC, Pan TL, Lord R, Lai CY, Tseng HP, Hsu LW, Huang HY, Yokoyama H, Kitano S, Goto S. Expression of clusterin in a rat tolerogenic OLT model. Transplant Proc 2000; 32:2333-4. [PMID: 11120188 DOI: 10.1016/s0041-1345(00)01687-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Huang HY, Huang HY, Chen WJ. Non-syndromic association of congenital hepatic fibrosis and bilateral cystic renal dysplasia. J Formos Med Assoc 2000; 99:863-5. [PMID: 11155779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
Congenital hepatic fibrosis (CHF) is associated with autosomal recessive polycystic kidney disease (ARPKD). Although cystic renal dysplasia (CRD) is the most common form of newborn cystic renal disease, this disorder of anomalous metanephric differentiation is only rarely found concurrent with CHF. Our literature review found only 13 sporadic and 12 familial non-syndromic cases of combined bilateral CRD and CHF reported outside Taiwan. We report the first domestic case, occurring in a fetus of 18 weeks' gestational age, which was the second pregnancy of a 24-year-old mother with a previous history of spontaneous abortion at 10 weeks' gestational age. Postmortem autopsy confirmed the concurrence of bilateral CRD and CHF without associated anomalies of other visceral organs and external appearance. This particular association must be differentiated from ARPKD and liver disease, in regard to ultrasonographic examination and genetic counseling.
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Huang HY, Wilkie DJ, Schubert MM, Ting LL. Symptom profile of nasopharyngeal cancer patients during radiation therapy. CANCER PRACTICE 2000; 8:274-81. [PMID: 11898144 DOI: 10.1046/j.1523-5394.2000.86007.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
PURPOSE This prospective, longitudinal study was aimed to describe the prevalence, severity, and pattern of symptoms over the course of radiation therapy in persons with nasopharyngeal carcinoma and to explore symptom severity by treatment modality. DESCRIPTION OF STUDY Thirty-seven patients completed this study, and 46% received chemotherapy before radiation therapy. A self-reported radiation symptom checklist and an objective mucositis assessment tool were used weekly to document oropharyngeal, skin, nose or ear, or more general side effects, and mucositis. RESULTS Oropharyngeal problems were the most severe complaints during radiation therapy. All patients experienced dry mouth, taste change, difficulty in swallowing, difficulty in opening their mouths, hoarseness, sore throat, and observable mucositis. Most reported moderate-to-severe dry mouth, difficulty in swallowing, and sore throat from weeks 3 through 7. Skin problems were not prominent until week 4. Patients also lost an average of 3.9 kg during the therapy. Sequential chemotherapy and radiation therapy was associated with more severe oropharyngeal problems than radiation therapy alone, but no significant differences in other problems were found. CLINICAL IMPLICATIONS Despite recognition of the oropharyngeal side effects associated with irradiation, effective management protocols for such symptoms have not been implemented in the studied institution. The frequency and intensity of the symptoms reported indicate an urgent need for increased vigilance about radiation-related side effects and pain management. As well, patient education about expected side effects may help mitigate the anxiety that patients experience when these symptoms occur.
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Huang HY, Maguire MG, Miller ER, Appel LJ. Impact of pill organizers and blister packs on adherence to pill taking in two vitamin supplementation trials. Am J Epidemiol 2000; 152:780-7. [PMID: 11052557 DOI: 10.1093/aje/152.8.780] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The impact of pill organizers on pill taking was determined in the Trial of Antioxidant Vitamins C and E (TRACE) Study, a factorial trial of vitamin C and vitamin E supplementation in 184 individuals. Participants were recruited in 1996-1997 and randomized to one of two groups (pill organizer or no organizer) and to one of four supplement groups for 2 months. The pill count (observed/expected X 100%) distribution was similar in the organizer and no organizer group for both vitamins. Mean differences in changes in serum vitamin levels between active and placebo groups did not differ by pill organizer use. The impact of pill organizers and blister packs was compared in another trial, the Vitamins, Teachers, and Longevity (VITAL) Study, in 297 individuals randomized in 1993-1994 to receive study pills either in blister packs or in pill organizers and to take one of two supplements. Among those with lower adherence, the pill count distribution in the blister-pack group exceeded that in the organizer group. Mean differences in serum vitamin E levels between active and placebo groups did not differ by types of pill packaging. In summary, use of blister packs, but not pill organizers, improved adherence as measured by pill counts among those with lower adherence. Neither pill delivery system improved adherence as measured by serum vitamin levels.
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