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1.
Bioethics ; 38(1): 11-23, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-37975237

RESUMO

Responses to the COVID-19 pandemic have been widely criticized for being too delayed and indecisive. As a result, the precautionary principle has been endorsed, applauded, and proposed to guide future responses to global public health emergencies. Drawing from controversial issues in response to COVID-19, especially in Vietnam, this paper critically discusses some key ethical and legal issues of employing the precautionary principle in public health emergencies. Engaging with discussions concerning this principle, especially in environmental law where the precautionary principle first appeared as a guiding principle with objective content(s), this paper formulates the precautionary principle as 'in dubio pro salus', which is about advising, justifying and demanding states to proactively prepare for scenarios arising out of any public health emergency. It distinguishes the precautionary principle into moderate and hard versions. A moderate version largely takes a holistic approach and fulfils a series of criteria specified in this paper, while a hard version either permits restrictive measures to be deployed primarily on a hypothetic basis or expresses an instrumental mentality. The hard version should be rejected because of the ethical and legal problems it raises, including risk-risk tradeoffs, internal paradoxes, unjustified causing of fear and unreasonable presupposition. Ultimately, this paper defends the moderate version.


Assuntos
COVID-19 , Saúde Pública , Humanos , Saúde Ambiental , Vietnã , Emergências , Pandemias , Medição de Risco
2.
Subst Use Misuse ; : 1-5, 2024 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-39287114

RESUMO

BACKGROUND: Alcohol use and abuse remain prevalent in China, though mounting evidence shows that even drinking in moderation is detrimental to health. While many countries' intake is on the decline, China's alcohol consumption is rising fast and is on the path to overtaking countries like the United States, even on a per capita level. OBJECTIVES: This paper aims to analyze the danger of lax enforcement of laws and regulations against alcohol use and abuse and underscores the imperative for effective health interventions to curb problematic alcohol consumption in China. RESULTS: Different from their Western counterparts, Chinese drinkers often consume more spirit with a high percentage of alcohol in social settings that encourage the "ganbei culture"-making toasts with alcohol filled to the brim and downed in one go to show respect-which perpetuates excessive drinking at a fast pace. Though the country has various laws and regulations in place to curb problematic alcohol consumption, like workplace drinking, their impacts are dismal. Considering that China has 1.4 billion people, the country's uncurbed alcohol consumption trend could have a detrimental effect on national strategic objectives like "Healthy China 2030" and international ones like the Sustainable Development Goals. To further compound the situation, prevalent campaigns promoted by liquor companies-like alcohol-infused coffee, chocolate, and ice cream-may groom young people to develop alcohol consumption habits, if not addictions, for generations to come. CONCLUSIONS: We developed the Framework of 5Vs of China's "Ganbei Culture to shed light on the issue, with the hope that it, along with the overarching insights of this paper, can assist health professionals and policymakers in better guarding and improving public health against the harms of alcohol use and abuse in China and beyond.

3.
Mol Med ; 29(1): 104, 2023 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-37528397

RESUMO

BACKGROUND: Macrophage-like transformation of vascular smooth muscle cells (VSMCs) is a risk factor of atherosclerosis (AS) progression. Transcription factor homeobox A1 (HOXA1) plays functional roles in differentiation and development. This study aims to explore the role of HOXA1 in VSMC transformation, thereby providing evidence for the potential mechanism of AS pathogenesis. METHODS: High fat diet (HFD)-fed apolipoprotein E knockout (ApoE-/-) mice were applied as an in vivo model to imitate AS, while 1-palmitoyl-2-(5-oxovaleroyl)-sn-glycero-3-phosphocholine (POV-PC)-treated VSMCs were applied as an in vitro model. Recombinant adeno-associated-virus-1 (AAV-1) vectors that express short-hairpin RNAs targeting HOXA1, herein referred as AAV1-shHOXA1, were generated for the loss-of-function experiments throughout the study. RESULTS: In the aortic root of AS mice, lipid deposition was severer and HOXA1 expression was higher than the wide-type mice fed with normal diet or HFD. Silencing of HOXA1 inhibited the AS-induced weight gain, inflammatory response, serum and liver lipid metabolism disorder and atherosclerotic plaque formation. Besides, lesions from AS mice with HOXA1 knockdown showed less trans-differentiation of VSMCs to macrophage-like cells, along with a suppression of krüppel-like factor 4 (KLF4) and nuclear factor (NF)-κB RelA (p65) expression. In vitro experiments consistently confirmed that HOXA1 knockdown suppressed lipid accumulation, VSMC-to-macrophage phenotypic switch and inflammation in POV-PC-treated VSMCs. Mechanism investigations further illustrated that HOXA1 transcriptionally activated RelA and KLF4 to participate in the pathological manifestations of VSMCs. CONCLUSIONS: HOXA1 participates in AS progression by regulating VSMCs plasticity via regulation of NF-κB p65 and KLF4. HOXA1 has the potential to be a biomarker or therapeutic target for AS.


Assuntos
Aterosclerose , Fator 4 Semelhante a Kruppel , Camundongos , Animais , NF-kappa B/metabolismo , Músculo Liso Vascular/metabolismo , Camundongos Knockout , Aterosclerose/genética , Aterosclerose/metabolismo , Macrófagos/metabolismo , Lipídeos , Miócitos de Músculo Liso/metabolismo , Células Cultivadas
4.
Surg Endosc ; 36(4): 2524-2531, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-34231062

RESUMO

BACKGROUND: Endoscopic thyroidectomy is widely performed as it does not result in neck scar. However, there is a paucity of reports pertaining to completely endoscopic lateral neck dissection (LND). In this study, we introduce our step-wise approach for performing endoscopic selective LND via the chest-breast approach. We refer to this approach as Qin's seven steps. METHODS: The Qin's seven steps are: (1) establishment of working space range; (2) dissection of lymph nodes between the SCM and the sternohyoid muscle (level IV) and exposure of omohyoid; (3) dissection of lymph nodes at level IV; (4) dissection of lymph nodes at level III; (5) dissection of lymph nodes at carotid triangle (level III); (6) exposure of accessory nerve and dissection of lymph nodes at level II a; (7) dissection of lymph nodes at level II b. We reviewed the clinical data of 35 patients with papillary thyroid cancer (PTC) who were operated using the Qin's seven steps. RESULTS: All 35 patients successfully underwent LND; bilateral LND was performed in 5 patients. The mean tumor size was 1.8 ± 1.0 cm; seven patients had multiple lesions. The mean number of retrieved lymph nodes in level II, III and IV were 8.8 ± 5.6, 6.1 ± 4.0 and 9.3 ± 5.1, respectively. As for complications, there were 3 cases of accessory nerve injury and 1 case of hypoglossal nerve injury. Internal jugular vein injury, cervical plexus injury and lymphatic leakage occurred in 2, 7, and 1 patients, respectively. CONCLUSION: The Qin's seven steps for performing endoscopic selective LND could be safely used in PTC patients with lateral lymph node metastasis. Satisfactory results were achieved in the short-term follow-up period. We recommend the use of Qin's seven steps for PTC patients who are not desirous of neck scar.


Assuntos
Carcinoma Papilar , Neoplasias da Glândula Tireoide , Carcinoma Papilar/cirurgia , Cicatriz/patologia , Humanos , Linfonodos/patologia , Esvaziamento Cervical/métodos , Estudos Retrospectivos , Câncer Papilífero da Tireoide/patologia , Câncer Papilífero da Tireoide/cirurgia , Neoplasias da Glândula Tireoide/patologia , Neoplasias da Glândula Tireoide/cirurgia , Tireoidectomia/métodos
5.
Surg Endosc ; 36(12): 9092-9098, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35732836

RESUMO

BACKGROUND: Recent years there have been witnessed considerable advances in endoscopic selective lateral neck dissection (LND). However, dissection of lymph nodes at level IV and level VI via the chest approach is inherently challenging. In this study, we used combined trans-oral and chest approach for endoscopic thyroidectomy in patients with cT1-2N1bM0 papillary thyroid carcinoma (PTC). METHODS: Clinical characteristics and surgical outcomes of ten patients with cT1-2N1bM0 PTC who underwent endoscopic thyroidectomy via combination of trans-oral and chest approach between September 2020 and September 2021 were retrospectively reviewed. RESULTS: All 10 patients successfully underwent total thyroidectomy and selective LND via chest approach, while central neck dissection (CND) and supplementary dissection of lymph nodes at level IV were performed via the trans-oral approach. The mean number of positive/retrieved level II, III-IV, and VI lymph nodes were 0.6 ± 1.0/9.8 ± 5.0, 4.6 ± 2.8/23.1 ± 4.7, and 4.9 ± 3.4/10.3 ± 4.6, respectively. Four patients developed transient hypoparathyroidism which spontaneously resolved within 1 month. Five patients developed numbness of lateral neck and ear and one patient experienced limb lift restriction. No other complications or tumor recurrence occurred during follow-up. CONCLUSION: It is feasible to perform total thyroidectomy, CND, and selective LND via combined trans-oral and chest approach, and satisfactory short-term outcomes were observed in this cohort. This approach may offer one more option for cT1-2N1bM0 PTC patients, especially those in whom metastatic lymph nodes at level IV or level VI are detected by preoperative examination.


Assuntos
Carcinoma Papilar , Neoplasias da Glândula Tireoide , Humanos , Tireoidectomia , Câncer Papilífero da Tireoide/cirurgia , Carcinoma Papilar/cirurgia , Estudos Retrospectivos , Neoplasias da Glândula Tireoide/cirurgia , Neoplasias da Glândula Tireoide/patologia , Recidiva Local de Neoplasia/cirurgia , Esvaziamento Cervical/efeitos adversos , Linfonodos/patologia
6.
BMC Surg ; 22(1): 270, 2022 Jul 13.
Artigo em Inglês | MEDLINE | ID: mdl-35831846

RESUMO

BACKGROUND: This study aimed to evaluate the feasibility and safety of the trans-oral endoscopic thyroidectomy vestibular approach (TOETVA) with neuroprotection techniques for the surgical management of papillary thyroid carcinoma (PTC). METHODS: Patients with PTC who underwent TOETVA between December 2016 and July 2020 were included in this study, and their relevant clinical characteristics, operational details, and surgical outcomes were reviewed and extracted from their medical records for further analysis. RESULTS: A total of 75 patients successfully underwent TOETVA with zero conversions. Unilateral lobectomy with isthmectomy and total thyroidectomy were completed for 58 and 17 patients, respectively, all using our unique neuroprotective procedure and ipsilateral central neck dissection (CND). The mean number of retrieved lymph nodes versus positive lymph nodes was 6.8 ± 3.7 vs. 1.5 ± 2.3. Postoperative complications included three cases of transient superior laryngeal nerve (SLN) palsy (4.0%), five cases of transient recurrent laryngeal nerve (RLN) palsy (6.7%), 14 cases of transient hypoparathyroidism (18.7%), two cases of numb chin (2.7%) and two cases of flap perforation (2.7%). The follow-up period for patients with PTC lasted for 15.6 ± 10.9 months, during which no other complications or tumor recurrence were observed. CONCLUSION: TOETVA can be safely performed for patients with PTC with satisfactory results during the short-term follow-up period. Our neuroprotection techniques can be integrated into TOETVA, which is worth recommending for PTC patients who desire better cosmetic surgical outcomes.


Assuntos
Câncer Papilífero da Tireoide , Neoplasias da Glândula Tireoide , Tireoidectomia , Estudos de Viabilidade , Humanos , Neuroproteção , Complicações Pós-Operatórias/epidemiologia , Câncer Papilífero da Tireoide/cirurgia , Neoplasias da Glândula Tireoide/cirurgia , Tireoidectomia/efeitos adversos , Tireoidectomia/métodos , Resultado do Tratamento
7.
Mol Carcinog ; 60(8): 538-555, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34062009

RESUMO

Triple-negative breast cancer (TNBC) is the most malignant subtype of breast cancer. Some microRNAs (miRNAs) were abnormally expressed in TNBC, and they are closely related to the occurrence and progression of TNBC. Here, we found that miR-506 was significantly downregulated in TNBC and relatively lower miR-506 expression predicted a poorer prognosis. Moreover, we found that miR-506 could inhibit MDA-MB-231 cell viability, colony formation, migration, and invasion, and suppress the ERK/Fos oncogenic signaling pathway through upregulating its direct target protein proenkephalin (PENK). Therefore, miR-506 was proposed as a nucleic acid drug for TNBC therapy. However, miRNA is unstable in vivo, which limiting its application as a therapeutic drug via conventional oral or injected therapies. Here, a gelatin nanosphere (GN) delivery system was applied for the first time to load exogenous miRNA. Exogenous miR-506 mimic was loaded on GNs and injected into the in situ TNBC animal model, and the miR-506 could achieve sustained and controlled release. The results confirmed that overexpression of miR-506 and PENK in vivo through loading on GNs inhibited in situ triple-negative breast tumor growth and metastasis significantly in the xenograft model. Moreover, we indicated that the ERK/Fos signaling pathway was intensively inactivated after overexpression of miR-506 and PENK both in vitro and in vivo, which was further validated by the ERK1/2-specific inhibitor SCH772984. In conclusion, this study demonstrates that miR-506-loaded GNs have great potential in anti-TNBC aggressiveness therapy.


Assuntos
Encefalinas/genética , MAP Quinases Reguladas por Sinal Extracelular/metabolismo , Regulação Neoplásica da Expressão Gênica , MicroRNAs/genética , Precursores de Proteínas/genética , Proteínas Proto-Oncogênicas c-fos/metabolismo , Transdução de Sinais , Neoplasias de Mama Triplo Negativas/genética , Neoplasias de Mama Triplo Negativas/metabolismo , Animais , Linhagem Celular Tumoral , Modelos Animais de Doenças , Progressão da Doença , Feminino , Gelatina , Técnicas de Transferência de Genes , Humanos , Camundongos , MicroRNAs/administração & dosagem , Nanosferas , Neoplasias de Mama Triplo Negativas/patologia , Ensaios Antitumorais Modelo de Xenoenxerto
8.
Nurs Ethics ; 28(3): 316-326, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-32851923

RESUMO

To effectively address ageing and develop adequate eldercare needs, among others, new ethical visions are much needed. One of the ways to formulate sound ethical visions for contemporary issues is to reclaim, reinterpret and revive old moral ideas and ideals rooted in different indigenous cultural traditions. Drawing thought, wisdom and inspirations from classical Confucianism, the article offers a Confucian ethical outlook on healthy ageing and social eldercare. The popular perception of ageing in the West as well as China regards old age as a period of inevitable decline. However, Kong Zi (Confucius) treats human life as an ongoing moral pilgrimage, with old age the summit of the lifelong journey. This Confucian ethical view on ageing as the culmination of a lifelong moral cultivation has various important themes. They include the primary feature of learning in healthy ageing, the essential role of social eldercare embedded in the popular Confucian norm 'filial piety' (xiao), intergenerational flourishing and the necessity to respect the rights and dignity of each old person. Such a Confucian socio-ethical vision can not only help identify contemporary failings in the area of eldercare but also generate novel ideas and frameworks to help China and the world to face population ageing and elderly care in a more positive way.


Assuntos
Confucionismo , Envelhecimento Saudável , Idoso , China , Humanos , Princípios Morais
9.
Nurs Ethics ; 28(5): 603-613, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33190589

RESUMO

BACKGROUND: In China, the conventional family-based ageing care model is under pressure from social transitions, raising the question of whether and to what extent families are still capable of dealing with the care of the aged. OBJECTIVE: This article examines the vulnerability and inadequacy of families to bear responsibility for the care of the aged against a backdrop of socioeconomic transformation and diminishing institutional support in rural China. RESEARCH DESIGN: This article adopts an empirical ethical approach that integrates empirical investigation with ethical inquiry. PARTICIPANTS AND RESEARCH CONTEXT: The empirical component of this article focuses on the lived experiences of caring for a wife and mother with dementia in one rural Chinese family, collected from a 6-month fieldwork study conducted at one primary hospital. ETHICAL CONSIDERATIONS: Approval was obtained from the university ethics committee. FINDINGS: The empirical study highlights a conflicted family process of managing and negotiating care that indicates the inadequacies and limited ability of families to deal with aged care tasks. In addition, inadequate structures and institutional deficiencies exacerbate the vulnerability of rural families and their inability to offer adequate care. CONCLUSION: Acknowledging the vulnerability of families as ageing care providers, this article calls for a socially supported family care model for rural older people in China and also proposes policy recommendations.


Assuntos
Família , População Rural , Idoso , China , Humanos
10.
Nurs Ethics ; 28(3): 387-401, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-32242477

RESUMO

BACKGROUND: The pressing issue of aged care has made gendered caregiving a growing subject of feminist bioethical enquiry. However, the impact of feminism on empirical studies in the area of gendered care in Chinese sociocultural contexts has been less influential. OBJECTIVES: To examine female members' lived experiences of gendered care in rural China and offer proper normative evaluation based on their experiences. RESEARCH DESIGN: This article adopted an empirical ethical approach that integrates ethnographical investigation and feminist ethical inquiry. PARTICIPANTS AND RESEARCH CONTEXT: This article focused on three cases of gendered caregiving for sick older members collected from a 6-month fieldwork conducted in a primary hospital in rural China. ETHICAL CONSIDERATION: Approval was obtained from the university ethics committee. FINDINGS: The empirical work highlights caregivers' voices of weiqu (a sense of unfairness) resulting from their constrained choice when being pressured to engage in caregiving, which is associated with a disadvantageous socio-institutional and structural backdrop in current rural China. Informed by the conception of structural injustice, the normative analysis of this article traced various forms of social norms, structural deficiencies and ageing welfare institutions, as they intertwine and transmit into additional care deficiencies against rural families and their female caregivers. CONCLUSION: This article identified the constraint of gender hierarchy and its intersection with external social structure that exacerbate gendered oppression and exploitation of female labour in rural China. Normatively, this article argues that the current configuration of rural family care, featured by structural impediments and exploration of female labour, is unjust. Some policy recommendations are proposed to empower caregivers and advance care for rural older people.


Assuntos
Cuidadores , Identidade de Gênero , Idoso , China , Feminino , Feminismo , Humanos , População Rural
11.
Eur J Vasc Endovasc Surg ; 59(1): 98-107, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31744785

RESUMO

OBJECTIVE: This study aimed to investigate the effect of long non-coding RNA (lncRNA) DLGAP1 antisense RNA 1 (DLGAP1-AS1) on vascular endothelial cell (VEC) injury via the phosphoinositide 3-kinase (PI3K)/Akt pathway in rat models of acute lower limb ischaemia-reperfusion (I/R). METHODS: Differentially expressed lncRNAs related to I/R were screened using the gene expression omnibus database. Acute lower limb I/R models were induced in male Wistar rats, in which the regulatory mechanisms of DLGAP1-AS1 silencing were analysed after the treatment of small interfering RNA (siRNA) against DLGAP1-AS1 or an inhibitor of the PI3K/Akt pathway. The relationship between DLGAP1-AS1 and the PI3K/Akt pathway was analysed. The levels of tumour necrosis factor (TNF)-α and vascular cell adhesion molecule-1 (VCAM-1), as well as malondialdehyde (MDA) concentration and creatine kinase (CK) activity, were measured. The number of circulating endothelial cells (CECs) and apoptosis of VECs were identified. RESULTS: Microarray based analysis indicated that DLGAP1-AS1 was highly expressed in I/R, which was further confirmed by detection of expression in rat models of acute lower limb I/R. Notably, the treatment of siRNA against DLGAP1-AS1 led to the activation of the PI3K/Akt pathway. In response to siRNA against DLGAP1-AS1, the levels of TNF-α and VCAM-1 were decreased, and MDA concentration and CK activity was downregulated. Reduced CEC numbers and suppressed VEC apoptosis were also observed. CONCLUSION: DLGAP1-AS1 silencing could further suppress the oxidative stress, exert an anti-apoptosis effect, and reduce inflammatory reaction, whereby VEC injury is alleviated by activation of the PI3K/Akt pathway in rats with acute lower limb I/R.


Assuntos
Apoptose/genética , Células Endoteliais/patologia , RNA Longo não Codificante/metabolismo , Traumatismo por Reperfusão/genética , Transdução de Sinais/genética , Animais , Proliferação de Células/genética , Modelos Animais de Doenças , Regulação para Baixo , Humanos , Masculino , Estresse Oxidativo/genética , Fosfatidilinositol 3-Quinases/metabolismo , Fosforilação , Proteínas Proto-Oncogênicas c-akt/metabolismo , Interferência de RNA , RNA Longo não Codificante/genética , RNA Interferente Pequeno/metabolismo , Ratos , Ratos Wistar , Traumatismo por Reperfusão/patologia
13.
Bioethics ; 34(6): 593-601, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32469104

RESUMO

This paper examines caregiving for sick older family members in the context of socio-economic transformations in rural China, combining empirical investigation with normative inquiry. The empirical part of this paper is based on a case study, taken from fieldwork in a rural Chinese hospital, of a son who took care of his hospitalized mother. This empirical study highlighted family members' weiqu (sense of unfairness)-a mental status from experiencing mistreatment and oppression in family care, yet with constrained power to explicitly protest or make care-related choices. Underpinning people's weiqu and constrained choice, as informed by the conception of structural injustice, is the impact of unjust social structures, organized by unfavourable norms, discriminatory social policies and institutions targeting rural populations. By restraining individual choices and capacities in supporting health care for aging populations, these unjust structures create additional difficulties for and discriminations against rural families and their older members. Some policy recommendations are proposed to mitigate structural injustice so as to empower families and promote care for older people in rural settings.


Assuntos
Cuidadores/psicologia , Relações Familiares/etnologia , Família/psicologia , Idoso Fragilizado/psicologia , Idoso , Cuidadores/ética , China , Teoria Ética , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Política Pública , População Rural , Apoio Social
14.
BMC Med Res Methodol ; 19(1): 66, 2019 03 28.
Artigo em Inglês | MEDLINE | ID: mdl-30922220

RESUMO

BACKGROUND: Navigating the world of qualitative thematic analysis can be challenging. This is compounded by the fact that detailed descriptions of methods are often omitted from qualitative discussions. While qualitative research methodologies are now mature, there often remains a lack of fine detail in their description both at submitted peer reviewed article level and in textbooks. As one of research's aims is to determine the relationship between knowledge and practice through the demonstration of rigour, more detailed descriptions of methods could prove useful. Rigour in quantitative research is often determined through detailed explanation allowing replication, but the ability to replicate is often not considered appropriate in qualitative research. However, a well described qualitative methodology could demonstrate and ensure the same effect. METHODS: This article details the codebook development which contributed to thematic analysis of qualitative data. This analysis formed part of a mixed methods multiphase design research project, with both qualitative and quantitative inquiry and involving the convergence of data and analyses. This design consisted of three distinct phases: quantitative, qualitative and implementation phases. RESULTS AND CONCLUSIONS: This article is aimed at researchers and doctoral students new to thematic analysis by describing a framework to assist their processes. The detailed description of the methods used supports attempts to utilise the thematic analysis process and to determine rigour to support the establishment of credibility. This process will assist practitioners to be confident that the knowledge and claims contained within research are transferable to their practice. The approach described within this article builds on, and enhances, current accepted models.


Assuntos
Medicina Baseada em Evidências/estatística & dados numéricos , Pesquisa sobre Serviços de Saúde/estatística & dados numéricos , Pesquisa Qualitativa , Projetos de Pesquisa , Medicina Baseada em Evidências/métodos , Conhecimentos, Atitudes e Prática em Saúde , Pesquisa sobre Serviços de Saúde/métodos , Humanos , Reprodutibilidade dos Testes
15.
Sheng Li Xue Bao ; 71(2): 279-286, 2019 Apr 25.
Artigo em Zh | MEDLINE | ID: mdl-31008487

RESUMO

The aim of this study was to investigate the role of S100 calcium binding protein A16 (S100A16) in lipid metabolism in hepatocytes and its possible biological mechanism. HepG2 cells (human hepatoma cell line) were cultured with fatty acid to establish fatty acid culture model. The control model was cultured without fatty acid. Each model was divided into three groups and transfected with S100a16 over-expression, shRNA and vector plasmids, respectively. The concentration of triglyceride (TG) in the cells was measured by kit, and the lipid droplets was observed by oil red O staining. Immunoprecipitation and mass spectrometry were used to find the interesting proteins interacting with S100A16, and the interaction was verified by immunoprecipitation. The further mechanism was studied by Western blot and qRT-PCR. The results showed that the intracellular lipid droplet and TG concentrations in the fatty acid culture model were significantly higher than those in the control model. The accumulation of intracellular fat in the S100a16 over-expression group was significantly higher than that in the vector plasmid transfection group. There was an interaction between heat shock protein A5 (HSPA5) and S100A16. Over-expression of S100A16 up-regulated protein expression levels of HSPA5, inositol-requiring enzyme 1α (IRE1α) and pIREα1, which belong to endoplasmic reticulum stress HSPA5/IRE1α-XBP1 pathway. Meanwhile, over-expression of S100A16 up-regulated the mRNA expression levels of adipose synthesis-related gene Srebp1c, Acc and Fas. In the S100a16 shRNA plasmid transfection group, the above-mentioned protein and mRNA levels were lower than those of vector plasmid transfection group. These results suggest that S100A16 may promote lipid synthesis in HepG2 cells through endoplasmic reticulum stress HSPA5/IRE1α-XBP1 pathway.


Assuntos
Estresse do Retículo Endoplasmático , Metabolismo dos Lipídeos , Proteínas S100/fisiologia , Chaperona BiP do Retículo Endoplasmático , Endorribonucleases/fisiologia , Proteínas de Choque Térmico/fisiologia , Células Hep G2 , Humanos , Proteínas Serina-Treonina Quinases/fisiologia , Triglicerídeos/biossíntese , Proteína 1 de Ligação a X-Box/fisiologia
16.
Med Health Care Philos ; 22(4): 583-591, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30903406

RESUMO

There exists a serious shortage of organs for transplantation in China, more so than in most Western countries. Confucianism has been commonly used as the cultural and ethical reason to explain the reluctance of Chinese and other East-Asian people to donate organs for medical purposes. It is asserted that the Confucian emphasis on xiao (filial piety) requires individuals to ensure body intactness at death. However, based on the original texts of classical Confucianism and other primary materials, we refute this popular view. We base our position on the related Confucian norms of filial piety and ren (humaneness, humanity or benevolence), the tension between differentiated love and universal love, and belief in the goodness of human nature. In light of this, we argue that the Confucian ethical outlook actually calls for organ donation at an individual level, and supports an opt-out (presumed consent) system at the level of social policy. Furthermore, because the popular view is based on a number of dominant but misleading modes of thinking about cultural differences, our revisionist account of Confucian moral duties regarding organ donation has implications for developing a more adequate transcultural and global bioethics. These will be discussed and expanded upon.


Assuntos
Confucionismo , Princípios Morais , Obtenção de Tecidos e Órgãos/ética , Altruísmo , China , Humanos , Relações Pais-Filho/etnologia , Religião e Medicina
17.
Dev World Bioeth ; 18(1): 45-55, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28944604

RESUMO

In China's healthcare sector, a popular and socio-culturally distinctive phenomenon known as guanxi jiuyi (medical guanxi), whereby patients draw on their guanxi (personal connections) with physicians when seeking healthcare, is thriving. Integrating anthropological investigation with normative inquiry, this paper examines medical guanxi through the lens of patient-physician trust and mistrust. The first-hand empirical data acquired - on the lived experiences and perspectives of both patients and physicians - is based on six months' fieldwork carried out in a county hospital in Guangdong, southern China, which included in-depth interviews with 20 patients and 20 medical professionals. Patients who emphasized the positive effects of guanxi on patient-physician trust believed that it facilitates access to experienced medical specialists, enhances clinical communication, and reduces the financial and medical risks of over diagnosis and overtreatment by physicians. At the same time, these findings reveal patients' strong sense of mistrust, not only towards individual health professionals but also to the medical profession and China's commercialized healthcare industry. While some health professionals in the study responded favourably to medical guanxi, most were opposed to it on the grounds that it undermines professional standards and equitable healthcare. We found that the practice of medical guanxi is not morally justifiable, chiefly because it reinforces the present high levels of patient-physician mistrust and erodes trust between patients and the medical profession as a whole. In China, both the medical profession and the state need to promote patient-physician trust based on medical professionalism and institutional norms, rather than on guanxi or individual relationships.


Assuntos
Atenção à Saúde/ética , Ética Médica , Relações Médico-Paciente/ética , Profissionalismo/ética , Confiança , China , Confidencialidade/ética , Humanos , Preconceito , Classe Social
18.
Dev World Bioeth ; 18(1): 56-64, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28922581

RESUMO

Trust is indispensable not only for interpersonal relationships and social life, but for good quality healthcare. As manifested in the increasing violence and tension in patient-physician relationships, China has been experiencing a widespread and profound crisis of patient-physician trust. And globally, the crisis of trust is an issue that every society, either developing or developed, has to face in one way or another. Yet, in spite of some pioneering works, the subject of patient-physician trust and mistrust - a crucial matter in healthcare especially because there are numerous ethical implications - has largely been marginalized in bioethics as a global discourse. Drawing lessons as well as inspirations from China, this paper demonstrates the necessity of a trust-oriented bioethics and presents some key theoretical, methodological and philosophical elements of such a bioethics. A trust-oriented bioethics moves beyond the current dominant bioethical paradigms through putting the subject of trust and mistrust in the central agenda of the field, learning from the social sciences, and reviving indigenous moral resources. In order for global bioethics to claim its relevance to the things that truly matter in social life and healthcare, trust should be as vital as such central norms like autonomy and justice and can serve as a potent theoretical framework.


Assuntos
Confidencialidade/ética , Atenção à Saúde/ética , Ética Médica , Relações Médico-Paciente/ética , Classe Social , Confiança , China , Diversidade Cultural , Humanos , Preconceito
19.
Dev World Bioeth ; 18(1): 26-36, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-28922547

RESUMO

To investigate the phenomenon of patient-physician mistrust in China, a qualitative study involving 107 physicians, nurses and health officials in Guangdong Province, southern China, was conducted through semi-structured interviews and focus groups. In this paper we report the key findings of the empirical study and argue for the essential role of medical professionalism in rebuilding patient-physician trust. Health professionals are trapped in a vicious circle of mistrust. Mistrust (particularly physicians' distrust of patients and their relatives) leads to increased levels of fear and self-protection by doctors which exacerbate difficulties in communication; in turn, this increases physician workloads, adding to a strong sense of injustice and victimization. These factors produce poorer healthcare outcomes and increasingly discontented and angry patients, escalate conflicts and disputes, and result in negative media coverage, all these ultimately contributing to even greater levels of mistrust. The vicious circle indicates not only the crisis of patient-physician relationship but the crisis of medicine as a profession and institution. Underlying the circle is the inherent conflict of interest in the healthcare system by which health professionals and hospitals have become profit-driven. This institutional conflict of interest seriously compromises the fundamental principle of medical professionalism-the primacy of patient welfare-as well as the traditional Chinese ideal of "medicine as the art of humanity". Patient trust can be restored through rectifying this institutional conflict of interest and promoting medical professionalism via a series of recommended practical measures.


Assuntos
Atenção à Saúde/ética , Ética Médica , Relações Médico-Paciente/ética , Profissionalismo/ética , Confiança , China , Confidencialidade/ética , Características Culturais , Humanos , Preconceito , Pesquisa Qualitativa , Classe Social
20.
Am J Bioeth ; 16(10): 3-11, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27653388

RESUMO

Military metaphors are pervasive in biomedicine, including HIV research. Rooted in the mind set that regards pathogens as enemies to be defeated, terms such as "shock and kill" have become widely accepted idioms within HIV cure research. Such language and symbolism must be critically examined as they may be especially problematic when used to express scientific ideas within emerging health-related fields. In this article, philosophical analysis and an interdisciplinary literature review utilizing key texts from sociology, anthropology, history, and Chinese and African studies were conducted to investigate the current proliferation of military metaphors. We found the use of these metaphors to be ironic, unfortunate, and unnecessary. To overcome military metaphors we propose to (1) give them less aggressive meanings, and/or (2) replace them with more peaceful metaphors. Building on previous authors' work, we argue for the increased use of "journey" (and related) metaphors as meaningful, cross-culturally appropriate alternatives to military metaphors.


Assuntos
Infecções por HIV/tratamento farmacológico , Metáfora , Medicina Militar , Humanos , Militares
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