240 research outputs found

    For “Them”, Not Us: A Qualitative Study Of Asian American Pacific Islander Perceptions Of Substance Use And Harm Reduction

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    Background: Asian American Pacific Islander (AAPI) substance use data is typically aggregated in a way that not only produces overly generalized results, but also potentially perpetuates stereotypes created by the Model Minority Myth (MMM). This has mutually reinforced a lack of representation and understanding of AAPI substance use experiences and needs. This presents a public health concern that is both excluding them from consideration by the field of harm reduction, but also themselves from considering harm reduction. Disaggregated data shows rising rates of substance use and associated harms that are often hidden or not taken as seriously as a public health issue, raising concerns that the lack of problem recognition of AAPI substance use issues will preclude them from being meaningfully and intentionally engaged by harm reduction organizations. This exploratory qualitative study examines the perceptions and relationships that AAPIs have with substance use and harm reduction by having them explore the question: “Who is harm reduction is for?” Methods: 15 qualitative interviews with adult AAPIs living in the U.S., with personal and/or professional experience with substance use or substance use topics were conducted in English over Zoom. Interview data was analyzed using thematic analysis. Results: Three overarching themes were identified: that substance use was a contributing factor in how AAPIs defined their social positionality; that problem recognition of substance use was doubly erased by both AAPIs and non-AAPIs; and that harm reduction was something AAPIs did not see as expressly inclusive of their community, but rather for ‘others’: white people, people who used opioids, and people who injected drugs. Conclusions: Harm reduction and public health organizations need to make more efforts to better integrate minoritized communities, like AAPIs, not just to ensure the availability of culturally-responsive substance use resources, but also to challenge deeply held stigmas and stereotypes

    An analysis for more equitable revenue and expenditure allocations within Lingnan College

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    From the triennial 1995-98, the funds allocated from University Grants Committee to universities have decreased. In order to use the limited resources effectively, and to manage their revenue and costs efficiently, universities have to set up a better budgeting system. Therefore, the eight universities in Hong Kong are proposing the Revenue Center Management (RCM) instead of the current budgeting system. The purposes of this project focuses on the analyses of the current budgeting system adopted at Lingnan College, and the proposed RCM budgeting system

    Immunotherapy for Lung Cancers

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    Lung cancer is the leading cause of cancer-related deaths worldwide. Although treatment methods in surgery, irradiation, and chemotherapy have improved, prognosis remains unsatisfactory and developing new therapeutic strategies is still an urgent demand. Immunotherapy is a novel therapeutic approach wherein activated immune cells can specifically kill tumor cells by recognition of tumor-associated antigens without damage to normal cells. Several lung cancer vaccines have demonstrated prolonged survival time in phase II and phase III trials, and several clinical trials are under investigation. However, many clinical trials involving cancer vaccination with defined tumor antigens work in only a small number of patients. Cancer immunotherapy is not completely effective in eradicating tumor cells because tumor cells escape from host immune scrutiny. Understanding of the mechanism of immune evasion regulated by tumor cells is required for the development of more effective immunotherapeutic approaches against lung cancer. This paper discusses the identification of tumor antigens in lung cancer, tumor immune escape mechanisms, and clinical vaccine trials in lung cancer

    Effectiveness of a knowledge-contact program in improving nursing students’ attitude and emotional competence in serving people with HIV/AIDS

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    a b s t r a c t This study compared the effectiveness of an AIDS knowledge-only program (knowledge) with a combined program of AIDS knowledge and contact with people having HIV/AIDS (PHA) (knowledgecontact) in reducing nursing students' stigma and discrimination towards PHA and in enhancing their emotional competence to serve PHA. Eighty-nine nursing students from two universities in Hong Kong were randomly assigned to either the knowledge or the knowledge-contact condition. All participants completed measures of AIDS knowledge, stigmatizing attitudes, fear of contagion, willingness to treat, positive affect, and negative affect at pre-test, post-test, and six-week follow-up. Findings showed that in both groups, significant improvement in AIDS knowledge, stigmatizing attitudes, fear of contagion, willingness to treat, and negative affect were found at post-test. The effects on AIDS knowledge, fear of contagion, willingness to treat, and negative affect were sustained at follow-up for both groups. Intergroup comparisons at post-test showed that the effectiveness of knowledge-contact program was significantly greater than knowledge program in improving stigmatizing attitudes. No significant difference between the two groups was found at follow-up. Findings showed the short-term effect of contact in improving nursing students' attitudes and emotional competence in serving PHA. Implications for research and training of nursing staff were discussed

    Cell–cell Interaction Underlies Formation of Fluid in the Male Reproductive Tract of the Rat

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    The epithelia lining the epididymides of many species consists of several cell types. We have provided evidence that the basal cells are essential to the integrated functions of the epithelium. Basal cells, but not principal cells, and other cells in the epididymis express TRPC3 and COX-1. We have isolated basal cells from intact rat epididymis using antibody-coated Dynabeads and subjected them to whole-cell patch-clamp measurement of nonselective cation channel activity, a feature of TRPC3 protein, and Fluo-3 fluorescence measurement of intracellular Ca2+ concentration. The results show that a nonselective cation current blockable by La3+ (0.1 mM), Gd3+ (0.1 mM), or SKF96365 (20 μM) could be activated by lysylbradykinin (200 nM). In cells loaded with Fluo-3, addition of lysylbradykinin (100 nM) caused a sustained increase of intracellular Ca2+. This effect was blocked by Gd3+ (0.1 mM) or SKF96365 (20 μM) and was not observed in Fluo-3–loaded principal cells. Stimulation of basal cell/principal cell cocultures with lysylbradykinin (200 nM) evoked in principal cells a current with CFTR-Cl− channel characteristics. Isolated principal cells in the absence of basal cells did not respond to lysylbradykinin but responded to PGE2 (100 nM) with activation of a CFTR-like current. Basal cells, but not principal cells, released prostaglandin E2 when stimulated with lysylbradykinin (100 nM). The release was blocked by SKF96365 (20 μM) and BAPTA-AM (0.05 or 0.1 mM). Confluent cell monolayers harvested from a mixture of disaggregated principal cells and basal cells responded to lysylbradykinin (100 nM) and PGE2 (500 nM) with an increase in electrogenic anion secretion. The former response was dependent on prostaglandin synthesis as piroxicam blocked the response. However, cell cultures obtained from principal cells alone responded to PGE2 but not to bradykinin. These results support the notion that basal cells regulate principal cells through a Ca2+ and COX signaling pathway

    Klotho-beta overexpression as a novel target for suppressing proliferation and fibroblast growth factor receptor-4 signaling in hepatocellular carcinoma

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    <p>Abstract</p> <p>Background</p> <p>We had previously demonstrated overexpression of fibroblast growth factor receptor-4 (FGFR4) in hepatocellular carcinoma (HCC). However, additional molecular mechanisms resulting in amplified FGFR4 signaling in HCC remain under-studied. Here, we studied the mechanistic role of its co-receptor klotho-beta (KLB) in driving elevated FGFR4 activity in HCC progression.</p> <p>Results</p> <p>Quantitative real-time PCR analysis identified frequent elevation of KLB gene expression in HCC tumors relative to matched non-tumor tissue, with a more than two-fold increase correlating with development of multiple tumors in patients. KLB-silencing in Huh7 cells decreased cell proliferation and suppressed FGFR4 downstream signaling. While transient repression of KLB-FGFR4 signaling decreased protein expression of alpha-fetoprotein (AFP), a HCC diagnostic marker, prolonged inhibition enriched for resistant HCC cells exhibiting increased liver stemness.</p> <p>Conclusions</p> <p>Elevated KLB expression in HCC tissues provides further credence to the oncogenic role of increased FGFR4 signaling in HCC progression and represents a novel biomarker to identify additional patients amenable to anti-FGFR4 therapy. The restricted tissue expression profile of KLB, together with the anti-proliferative effect observed with KLB-silencing, also qualifies it as a specific and potent therapeutic target for HCC patients. The enrichment of a liver stem cell-like population in response to extended KLB-FGFR4 repression necessitates further investigation to target the development of drug resistance.</p

    Relationships for quality improvement in the Hong Kong China supply chain : a study in the theory of cooperation and competition

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    Manufacturers recognize trusting, long-term relationships with suppliers can contribute to improving the quality of their products. However, developing these relationships has proved quite challenging. This study uses the theory of cooperation and competition to specify the nature of these relationships and how they can be established. Results of structural equation analyses suggests that manufacturers and suppliers who build cooperative goals rather than competitive or independent are able to discuss quality issues open-mindedly. This open-mindedness in turn strengthens trust and a long-term orientation which results in quality enhancing relationships with suppliers. Deutsch’s theory of cooperation and competition, although developed largely through North American research, seems useful for understanding and developing quality supply chain partnerships in East Asia

    Associations among stressors, perceived stress, and psychological distress in nursing students: a mixed methods longitudinal study of a Hong Kong sample

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    BackgroundNursing students are at risk for high-stress levels and psychological distress. Limited longitudinal studies have been conducted examining factors associated with stress levels and psychological distress of nursing students in their course of study.PurposeThe purpose of this study was to examine the levels of stress and corresponding stressors, particularly those predicting psychological distress, among nursing students over their 5 years of study.MethodsA longitudinal design, using questionnaires and focus group interviews of a single cohort of nursing students in Hong Kong and following them over their 5 years of training. The Stressors in Nursing Students Scale-Chinese version and the Chinese version of General Health Questionnaire-12 were used to assess stress levels and psychological distress, respectively.ResultsNinety-seven participants completed the questionnaires 5 times. Quantitative findings revealed that the overall stress levels of the nursing students increased over 5 years (from mean = 3.08 to 3.33), with the highest levels in the second wave (mean = 3.33). Nursing students experienced higher stress during years 2 (p = 0.006) and 4 (p = 0.037). Psychological distress was the highest in year 3 (sum score = 18.47) (p = 0.002) but declined from year 4 (p &lt; 0.001). Thematic analysis revealed that academic performance issues, coping challenges, unfavorable learning environments, relationships were identified as the stressors. However, nursing students also used positive coping strategies to pursue success and seek support.ConclusionThis study suggests that the year of study is a significant predictor of stress levels among nursing students, especially during the first and senior years due to heavy academic workload. Psychological distress was observed among nursing students, and those who worked more part-time jobs tended to report higher levels of distress. The junior year was associated with higher levels of distress related to financial and time-related stress, while academic and personal problems were more prevalent during the senior year

    Validation and application of health utilities index in Chinese subjects with down syndrome

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    Objectives: The objectives of the study were (1) to validate the Chinese version of Health Utilities Index (HUI-Ch); (2) to examine the Health-related Quality of Life (HRQoL) of Chinese subjects with Down syndrome (DS); and (3) to study the impact of chronic health conditions on HRQoL of Chinese with DS. Methods: The multiple choice questionnaire for scoring Health Utilities Index Mark 2 (HUI2) and Health Utilities Index Mark 3 (HUI3) was translated and validated. In addition to the HRQoL scores from HUI2 and HUI3, proxy-data on socio-demographics, and 10 common chronic health conditions for people with DS were collected and analyzed. Data analysis involves multiple imputation and multiple regression analysis to predict variations in HRQoL in relation to different factors. Lastly, a gradient interval was constructed on the number of chronic health conditions in relation to HRQoL. Results: HUI-Ch was validated according to standard guidelines. People with DS were found to have a lower HRQoL as compared to the general population, with the majority categorized as moderate or severe on the scale. Behavioral and hearing problems on HUI2, and hearing problems on HUI3 were found to be statistically significant predictors of a lower HRQoL score. A significant gradient relationship existed showing when the number of health problems increased, the HRQoL scores decreased. Conclusions: HUI-Ch is a valid instrument to assess HRQoL. It can have broad application in Chinese subjects with DS including the study of the impact of different chronic health conditions on their quality of life. The quantifiable nature of HUI-Ch will facilitate longitudinal study on the well-being of subjects with DS and evaluation of effectiveness of intervention programs in the near future
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