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1.
BMC Infect Dis ; 24(1): 427, 2024 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-38649864

RESUMO

BACKGROUND: COVID-19 has been shown to increase the risk of extracorporeal coagulation during hemodialysis in patients, but the underlying mechanism remains unclear. This study aimed to investigate the effect and mechanism of COVID-19 on the risk of extracorporeal coagulation in patients with chronic kidney disease undergoing hemodialysis. METHODS: A retrospective analysis of the extracorporeal coagulation status of 339 hemodialysis patients at our center before and after COVID-19 infection was performed, including subgroup analyses. Post-infection blood composition was analyzed by protein spectrometry and ELISA. RESULTS: Compared to the pre-COVID-19 infection period, COVID-19-induced extracorporeal coagulation predominantly occurred in patients with severe/critical symptoms. Further proteomic analysis demonstrated that in patients with severe/critical symptoms, the coagulation cascade reaction, platelet activation, inflammation, and oxidative stress-related pathways were significantly amplified compared to those in patients with no/mild symptoms. Notably, the vWF/FBLN5 pathway, which is associated with inflammation, vascular injury, and coagulation, was significantly upregulated. CONCLUSIONS: Patients with severe/critical COVID-19 symptoms are at a higher risk of extracorporeal coagulation during hemodialysis, which is associated with the upregulation of the vWF/FBLN5 signaling pathway. These findings highlight the importance of early anticoagulant therapy initiation in COVID-19 patients with severe/critical symptoms, particularly those undergoing hemodialysis. Additionally, vWF/FBLN5 upregulation may be a novel mechanism for virus-associated thrombosis/coagulation.


Assuntos
COVID-19 , Diálise Renal , SARS-CoV-2 , Transdução de Sinais , Regulação para Cima , Fator de von Willebrand , Humanos , COVID-19/sangue , COVID-19/metabolismo , Diálise Renal/efeitos adversos , Masculino , Feminino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fator de von Willebrand/metabolismo , Fator de von Willebrand/análise , Idoso , Coagulação Sanguínea , Insuficiência Renal Crônica/terapia , Insuficiência Renal Crônica/metabolismo , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/sangue , Adulto
2.
Mol Carcinog ; 62(8): 1228-1237, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37306026

RESUMO

Cervical cancer is a malignant tumor of the cervix in women. However, the pathogenesis of cervical cancer has not been fully understood. N6-methyladenosine (m6A) is a kind of RNA modification that plays a critical role in cancer development. We aim to find out the possible m6A regulatory mechanism of the fat mass and obesity-associated protein (FTO) on the development of cervical cancer. The proliferative capacity of cervical cancer cells was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT), colony formation and 5-ethynyl-20-deoxyuridine (EdU) staining. The migration and invasion of cervical cancer cells were determined by transwell assay. The function of FTO on tumor growth was evaluated by a xenograft model. We found that FTO was highly expressed in cervical cancer tissues and cell lines. FTO silencing suppressed the proliferation, migration, and invasion of cervical cancer cells. Mechanistically, FTO modulated the m6A modification of Zinc finger E-box binding homeobox 1 (ZEB1) and Myelocytomatosis oncogene (Myc). Furthermore, ZEB1 and Myc overexpression reverse the effect of FTO knockdown on the malignant behaviors of cervical cancer cells. FTO may be a novel therapeutic target for cervical cancer.


Assuntos
Neoplasias do Colo do Útero , Humanos , Feminino , Neoplasias do Colo do Útero/genética , Oncogenes , Linhagem Celular , Homeobox 1 de Ligação a E-box em Dedo de Zinco/genética , Linhagem Celular Tumoral , Dioxigenase FTO Dependente de alfa-Cetoglutarato/genética
3.
Environ Res ; 227: 115721, 2023 06 15.
Artigo em Inglês | MEDLINE | ID: mdl-36965788

RESUMO

The abnormal progression of tumors has been a problem for treatment of cancer and therapeutic should be directed towards targeting main mechanisms involved in tumorigenesis in tumors. The genomic mutations can result in changes in biological mechanisms in human cancers. Colorectal cancer is one of the most malignant tumors of gastrointestinal tract and its treatment has been faced some difficulties due to development of resistance in tumor cells and also, their malignant behavior. Hence, new therapeutic modalities for colorectal cancer are being investigated. Autophagy is a "self-digestion" mechanism that is responsible for homeostasis preserving in cells and its aberrant activation/inhibition can lead to tumorigenesis. The current review focuses on the role of autophagy mechanism in colorectal cancer. Autophagy may be associated with increase/decrease in progression of colorectal cancer due to mutual function of this molecular mechanism. Pro-survival autophagy inhibits apoptosis to increase proliferation and survival rate of colorectal tumor cells and it is also involved in cancer metastasis maybe due to EMT induction. In contrast, pro-death autophagy decreases growth and invasion of colorectal tumor cells. The status of autophagy (upregulation and down-regulation) is a determining factor for therapy response in colorectal tumor cells. Therefore, targeting autophagy can increase sensitivity of colorectal tumor cells to chemotherapy and radiotherapy. Interestingly, nanoparticles can be employed for targeting autophagy in cancer therapy and they can both induce/suppress autophagy in tumor cells. Furthermore, autophagy modulators can be embedded in nanostructures in improving tumor suppression and providing cancer immunotherapy.


Assuntos
Autofagia , Neoplasias Colorretais , Humanos , Autofagia/genética , Apoptose , Neoplasias Colorretais/tratamento farmacológico , Linhagem Celular Tumoral , Carcinogênese
4.
J Transl Med ; 20(1): 280, 2022 06 21.
Artigo em Inglês | MEDLINE | ID: mdl-35729552

RESUMO

OBJECTIVE: TIGIT/CD155 has attracted widespread attention as a new immune checkpoint and a potential target for cancer immunotherapy. In our study, we evaluated the role of TIGIT/CD155 checkpoints in the progression of cervical cancer. METHODS: The expression of CD155 and TIGIT in cervical cancer tissues was detected using flow cytometry, immunohistochemistry (IHC) and gene expression profiling. In vivo and in vitro experiments have proven that blocking TIGIT/CD155 restores the ability of CD8+ T cells to produce cytokines. Changes in the NF-κB and ERK pathways were detected using western blotting (WB) after blocking TIGIT/CD155 signalling. RESULTS: TIGIT expression was elevated in patients with cervical cancer. High TIGIT expression in CD8+ T lymphocytes from patients with cervical cancer promotes the exhaustion of CD8+ T lymphocytes. In addition, CD155 is expressed at high levels in cervical cancer tissues and is negatively correlated with the level of infiltrating CD8+ T cells. We found that TIGIT, upon binding to CD155 and being phosphorylated, inhibited NF-κB and ERK activation by recruiting SHIP-1, resulting in the downregulation of cytokine production. Blocking TIGIT in activated CD8+ T cells attenuates the inhibitory effect of SHIP-1 on CD8+ T cells and enhances the activation of NF-κB and ERK. In vivo and in vitro experiments have proven that blocking TIGIT/CD155 restores the ability of CD8+ T cells to produce cytokines. Injecting the blocking antibody TIGIT in vivo inhibits tumour growth and enhances CD8+ T lymphocyte function. Treatment with a combination of TIGIT and PD-1 inhibitors further increases the efficacy of the TIGIT blocking antibody. CONCLUSIONS: Our research shows that TIGIT/CD155 is a potential therapeutic target for cervical cancer.


Assuntos
Linfócitos T CD8-Positivos , Neoplasias do Colo do Útero , Citocinas/metabolismo , Feminino , Humanos , NF-kappa B/metabolismo , Fosfatidilinositol-3,4,5-Trifosfato 5-Fosfatases/metabolismo , Fosfatidilinositol-3,4,5-Trifosfato 5-Fosfatases/farmacologia , Receptores Imunológicos/metabolismo , Receptores Virais , Neoplasias do Colo do Útero/metabolismo
5.
BMC Med Educ ; 22(1): 5, 2022 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-34980086

RESUMO

BACKGROUND: Simulation has been widely used in the teaching of pre-licensed nursing students and has shown positive results. However, there is limited evidence regarding the application of a comprehensive nursing course with simulation for Associated Degree in Nursing (ADN)-prepared nurses with different work experience times. Therefore, this study aimed to evaluate the satisfaction, self-confidence, and perceptions of scenario simulation among Chinese nurses in a comprehensive nursing skills course in an RN-BSN program. METHODS: A single-group post-test approach was used in the current study. Participants that completed a comprehensive nursing skills course with simulation in an RN-BSN program were enrolled. RESULTS: The mean satisfaction, self-confidence, educational practice, and simulation designs scores were rated highly. Self-confidence (p = 0.002), active learning (p = 0.020), collaboration (p = 0.030), support (p = 0.008), and problem-solving (p = 0.007) were significantly higher among students with more work experience compared to those with less experience. Then, four themes were analyzed: enthusiasm for learning, ability to experience different feelings during role-play, hybrid teaching format, and simulation fidelity. CONCLUSIONS: Results demonstrated that a comprehensive nursing skills course with simulation might improve Chinese ADN-prepared nurses' satisfaction and self-confidence in learning. Nurses with work experience gave a high rate to the scenario simulation, demonstrating that simulation can be widely applicable for students with different characteristics. Finally, the teaching strategy in the present study can be applied to more RN-BSN programs.


Assuntos
Bacharelado em Enfermagem , Estudantes de Enfermagem , China , Escolaridade , Humanos , Aprendizagem Baseada em Problemas
6.
Sichuan Da Xue Xue Bao Yi Xue Ban ; 53(6): 993-997, 2022 Nov.
Artigo em Zh | MEDLINE | ID: mdl-36443040

RESUMO

Objective: To retrospectively analyze the clinical features and treatment outcomes of patients with diabetic foot ulcers (DFU), and to investigate the effect of controlling nutritional status (CONUT) scores on the amputation risks and hospital length-of-stay of DFU patients. Methods: A total of 357 DFU inpatients admitted to the Department of Endocrinology, PLA Strategic Support Force Characteristic Medical Center between January 1, 2016 and December 31, 2018 were enrolled and analyzed retrospectively. Based on their CONUT scores, the patients were divided into 3 groups, a normal nutritional status group consisting of patients with CONUT scores 0-1 ( n=100), a mild malnutrition group consisting of patients with CONUT scores 2-4 scores ( n=164), and a moderate-to-severe malnutrition group consisting of patients with CONUT scores≥5 ( n=93). According to whether they underwent amputation, patients were divided into an amputation group ( n=110) and a non-amputation group ( n=247). The clinical characteristics, amputation rate, and hospital length-of-stay were compared between groups with different CONUT scores. Logistic regression was conducted to analyze the independent risk factors of amputation. Results: The total amputation rate of DFU patients was 30.6%. Among all amputations, the major amputation (above-the-ankle amputation) rate was 1.8%, and the minor amputation rate was 98.2%. The amputation rate in patients with mild and moderate-to-severe malnutrition were 1.5 and 3.0 times higher than those in the normal nutritional status group, respectively. Logistic regression analysis showed that the moderate-to-severe nutritional status (5-12 scores), white blood cell, Wagner classification and ankle-brachial index were independent risk factors for amputation. Conclusion: CONUT score is closely associated with amputations in DFU patients. Improving the nutritional status of patients in the early stage could reduce the risk of amputation.


Assuntos
Diabetes Mellitus , Pé Diabético , Desnutrição , Humanos , Pé Diabético/cirurgia , Estado Nutricional , Estudos Retrospectivos , Hospitalização
7.
Cancer Cell Int ; 21(1): 684, 2021 Dec 19.
Artigo em Inglês | MEDLINE | ID: mdl-34923985

RESUMO

BACKGROUND: Angiogenesis provides essential nutrients and oxygen for tumor growth and has become the main mechanism of tumor invasion and metastasis. Exosomes are nanoscale membrane vesicles containing proteins, lipids, mRNA and microRNA (miRNA), which mediate intercellular communication and play an important role in tumor progression. Accumulated evidence indicates that tumor-derived exosomal miRNAs participate in the tumor microenvironment and promote angiogenesis. METHODS: Bioinformatic target prediction and dual luciferase reporter assays were performed to identify the binding site between miR-663b and the 3'-UTR of vinculin (VCL). VCL overexpression lentivirus and miR-663b overexpression/inhibition lentivirus were used to create a VCL overexpression model and miR-663b overexpression/inhibition model in-vitro. Immunohistochemistry (IHC) assays and western blot assays were used to detect protein expression. Exosome-cell cocultures, wound healing assays, tube formation assays and transwell assays were used to measure the migration and tube formation ability of vascular endothelial cells [human umbilical vein endothelial cells (HUVECs)]. siRNA targeted VCL was used to knockdown VCL. RESULTS: In the present study, we found that miR-663b was elevated in cervical cancer tissue and exosomes. miR-663b could bind the 3'-UTR of VCL and inhibit its expression. VCL is downregulated in cervical cancer, and decreased VCL has a negative correlation with a high level of miR-663b. Further studies demonstrated that exosomes secreted by cervical cancer cells can deliver miR-663b to HUVECs and inhibit the expression of VCL, thereby promoting angiogenesis and tumor growth. CONCLUSIONS: miR-663b derived from cancer cell exosomes acts as a driving factor for angiogenesis and a potential target of antiangiogenic therapy in cervical cancer. Our findings illustrated a new signaling pathway, including exosomes, miRNAs and target genes, which provides potential targets for antiangiogenic therapy.

8.
J Cell Physiol ; 234(5): 7247-7256, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30370521

RESUMO

Colorectal cancer (CRC) is one of the leading causes of cancer-related death worldwide. Currently, an increasing evidence showed that circular RNAs (circRNAs) play important roles in tumor progression. However, the effects and underlying mechanisms of circRNAs in CRC progression remain unclear. In the present study, through circRNA high-throughput sequencing and quantitative real-time polymerase chain reaction, we identified that hsa_circ_0136666 was significantly overexpressed in CRC tissues and cell lines. High hsa_circ_0136666 expression was associated with poor overall survival of patients with CRC. In vitro function assays showed that hsa_circ_0136666 inhibition suppressed CRC cell proliferation, migration, invasion, and arrested CRC cells in the G0/G1 phase. Furthermore, we showed that hsa_circ_0136666 inhibition reduced CRC cell growth in vivo. Mechanistically, we revealed that hsa_circ_0136666 could increase SH2B1 expression via competitively binding miR-136 in CRC cells. In addition, SH2B1 overexpression could reverse the effects of hsa_circ_0136666 inhibition on CRC cell progression. In conclusion, our data suggested that hsa_circ_0136666 could promote CRC cell progression via the miR-136/SH2B1 axis, elucidating a novel approach to improve the effectiveness of CRC treatment.


Assuntos
Proteínas Adaptadoras de Transdução de Sinal/metabolismo , Movimento Celular , Proliferação de Células , Neoplasias Colorretais/metabolismo , MicroRNAs/metabolismo , RNA Circular/metabolismo , Proteínas Adaptadoras de Transdução de Sinal/genética , Animais , Pontos de Checagem do Ciclo Celular , Neoplasias Colorretais/genética , Neoplasias Colorretais/patologia , Regulação Neoplásica da Expressão Gênica , Células HCT116 , Células HT29 , Humanos , Camundongos Nus , MicroRNAs/genética , Invasividade Neoplásica , RNA Circular/genética , Transdução de Sinais , Regulação para Cima
9.
J Cell Biochem ; 120(7): 11115-11126, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-30701576

RESUMO

Compelling evidence shows that deregulated microRNAs (miRNAs) are important regulators in the progression of melanoma. miR-145-5p has been suggested to exhibit antitumorigenic activity in melanoma. However, the molecular mechanism underlying the biological activity of miR-145-5p in melanoma remains to be further understood. Herein, quantitative real-time polymerase chain reaction was used to examine the miR-145-5p expression in malignant melanoma tissues and cells. The interaction between miR-145-5p and toll-like receptor 4 (TLR4) was explored by bioinformatics analyses, luciferase reporter assay, and Western blot. The effects of miR-145-5p or combined with TLR4 on cell proliferation, colony formation, migration, and invasion abilities were investigated by (4,5-Dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide, colony formation, wound healing, and transwell assays, respectively. The melanoma xenograft tumor models were established to determine the biological activity of miR-145-5p in melanoma in vivo. In addition, the changes of the nuclear factor kappa B (NF-κB) pathway were analyzed by detecting the NF-κB activity and the NF-κB p65 protein level. We observed that the miR-145-5p expression was underexpressed in melanoma tissues and cells. miR-145-5p suppressed the TLR4 expression by binding to its 3'untranslated region in melanoma cells. Moreover, TLR4 overexpression abolished the inhibition of cell proliferation, colony formation, migration, and invasion abilities induced by miR-145-5p in melanoma cells. Meanwhile, miR-145-5p was confirmed to restrain melanoma tumor growth in vivo by targeting TLR4. Furthermore, miR-145-5p overexpression inactivated the NF-κB pathway in melanoma in vitro and in vivo, which was reversed by TLR4 overexpression. We concluded that miR-145-5p hindered the occurrence and metastasis of melanoma cells in vitro and in vivo by targeting TLR4 via inactivation of the NF-κB pathway.

10.
Int J Nurs Pract ; 23(1)2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28004476

RESUMO

To evaluate the epidemiological characteristics, reporting characteristics, and methodological quality of systematic reviews in the traditional Chinese medicine nursing field published in Chinese journals. The number of systematic reviews in the traditional Chinese medicine nursing field has increased, but their epidemiology, quality, and reporting characteristics have not been assessed completely. We generated an overview of reviews using a narrative approach. Four Chinese databases were searched for systematic reviews from inception to December 2015. The Preferred Reporting Items of Systematic Reviews and Meta-analyses and the Assessment of Multiple Systematic Reviews checklists were adopted to evaluate reporting and methodological quality, respectively. A total of 73 eligible systematic reviews, published from 2005 to 2015, were included. The deficiencies in reporting characteristics mainly lay in the lack of structured abstract or protocol, incomplete reporting of search strategies, study selection, and risk of bias. The deficiencies in methodological quality were reflected in the lack of a priori design and conflict of interest, incomplete literature searches, and assessment of publication bias. The quality of the evaluated reviews was unsatisfactory; attention should be paid to the improvement of reporting and methodological quality in the conduct of systematic reviews.


Assuntos
Medicina Tradicional Chinesa , Metanálise como Assunto , Pesquisa em Enfermagem , Literatura de Revisão como Assunto , Viés , Bases de Dados Factuais , Humanos
12.
Ren Fail ; 38(6): 849-56, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-27055479

RESUMO

BACKGROUND: The renoprotective effect of inhibitors of renin-angiotensin system (RAS) has been identified through placebo-controlled trials. However, the effect of calcium-channel blockers (CCBs) on renal system is still controversial. Our current meta-analysis includes available evidences to compare the effect of dihydropyridine CCBs and ACEIs or ARBs on renal outcomes and mortality. We also further investigate whether CCBs can be used in combination with inhibitors of RAS to improve the prognosis of patients with chronic kidney disease (CKD). METHODS AND RESULTS: Electronic databases were searched up to July 2012, for clinical randomized controlled trials, assessing the effect of dihydropyridine CCBs on the incidence of end-stage renal disease (ESRD) and all-cause mortality in contrast to ACEIs or ARBs. Eight clinical trials were included containing 25,647 participants. ESRD showed significantly higher frequency with CCBs therapy compared with ACEIs or ARBs therapy, though blood pressure was decreased similarly in both groups in every trial (OR, 1.25; 95% CI, 1.05-1.48; p = 0.01). In contrast, there was no significant difference in the incidence of all-cause mortality between these two groups, though ACEIs or ARBs exhibited better renoprotective effect compared to CCBs (OR, 0.96; 95% CI, 0.89-1.03; p = 0.24). CONCLUSIONS: CCBs did not increase all-cause mortality incidence in patients with CKD though they displayed weaker renoprotective, compared to ACEIs or ARBs therapy. Our results suggest the combination of a CCB and an ACEI or ARB should be a preferable antihypertensive therapy in patients with CKD, considering their higher effect in decreasing blood pressure and fewer adverse metabolic problems caused.


Assuntos
Antagonistas de Receptores de Angiotensina/uso terapêutico , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Bloqueadores dos Canais de Cálcio/uso terapêutico , Falência Renal Crônica/mortalidade , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/tratamento farmacológico , Antagonistas de Receptores de Angiotensina/efeitos adversos , Inibidores da Enzima Conversora de Angiotensina/efeitos adversos , Pressão Sanguínea/efeitos dos fármacos , Bloqueadores dos Canais de Cálcio/efeitos adversos , Quimioterapia Combinada , Humanos , Incidência , Ensaios Clínicos Controlados Aleatórios como Assunto , Sistema Renina-Angiotensina/efeitos dos fármacos
13.
Asian-Australas J Anim Sci ; 29(6): 793-800, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26954128

RESUMO

Most hinnies (female donkey×male horse) and mules (female horse×male donkey) are sterile with few reports of equine fertile hybrids. The main cause of this sterility is thought to be a meiotic block to spermatogenesis and oogenesis. This study compared the developmental features of the testes and a histological analyses of spermatogenesis in a male hinny with those of a normal, fertile stallion and Jack donkey. Hinny testes showed a thicker tunica albuginea, fewer blood vessels and more connective tissue in the testis parenchyma than those of the stallion and Jack donkey. Although the mean number of seminiferous tubules was significantly higher in stallion and hinny than Jack donkey (p<0.01), the mean proportion of seminiferous tubules was lower in the hinny (p<0.01) which resulted in a smaller diameter of seminiferous tubules. The mean number of spermatogonia and spermatocytes per unit area were significantly lower in hinny testis (p<0.01) and no spermatids or mature spermatozoa cells were found during immunofluorescent analyses. These results indicated that defects in seminiferous tubule development and structure occur in the testis of hinnies. Furthermore, most spermatogonia and spermatocytes cease development in synapsis during mid-meiosis of spermatocytes, which results in a block to spermatogenesis that prevents the formation of spermatids and matured spermatozoa during meiosis in male hinnies.

15.
Lipids Health Dis ; 14: 95, 2015 Aug 25.
Artigo em Inglês | MEDLINE | ID: mdl-26302822

RESUMO

BACKGROUND: Population-based studies have demonstrated that subclinical hypothyroidism (SCH) is an independent risk factor for atherosclerosis (OR = 1.9). However, this connection cannot be entirely explained by dyslipidemia accompanied by SCH. Lipid peroxidation also plays an important role in the development of atherosclerosis. In this study, we aimed to evaluate oxidative stress in SCH patients, as measured according to concentrations of hydroxy-octadecadienoic acids (HODEs) and hydroxy-eicosatetraenoic acids (HETEs) in both plasma and low density lipoproteins (LDL). SUBJECTS AND METHODS: The concentrations of HODEs and HETEs in both LDL and plasma were examined in euthyroid (n = 10), mild SCH (4.5 ≤ TSH < 10 mU/L, n = 10), and significant SCH (TSH ≥ 10 mU/L, n = 10) subjects, using a liquid chromatograph-electrospray ionization- mass spectrometer. Then, we explored the relationship among LDL oxidation, TSH levels, and carotid intima-media thickness (IMT), a biomarker of subclinical atherosclerosis. RESULTS: Serum LDL-C levels and mean-IMT in the significant SCH group were higher than in the euthyroid group (p < 0.05). The HODE and HETE concentrations clearly increased in the significant SCH patients compared with the euthyroid subjects, but there was no difference between the mild SCH and euthyroid groups. Among all subjects, linear and significant positive correlations were identified between TSH and mean-IMT after adjustment for confounding factors (r = 0.480, p = 0.018). Both 9-HODE (r = 0.376, p = 0.041) and 13-HODE (r = 0.447, p = 0.013) in LDL were linearly and positively correlated with TSH. The concentrations of HODEs (both 9-HODE and 13-HODE) in LDL were much higher in the thickened IMT group than in the normal IMT group (p = .017 and 0.015, respectively). HODEs in LDL were also positively associated with mean-IMT. CONCLUSIONS: Our findings showed that lipid peroxidation was higher in the significant SCH patients than in the euthyroid subjects, which suggested that qualitative as well as quantitative changes in serum lipids resulting from SCH may add to atherosclerosis risk.


Assuntos
Hipotireoidismo/sangue , Lipoproteínas LDL/sangue , Doenças Assintomáticas , Aterosclerose/sangue , Aterosclerose/diagnóstico , Aterosclerose/etiologia , Índice de Massa Corporal , Espessura Intima-Media Carotídea , Feminino , Humanos , Ácidos Hidroxieicosatetraenoicos/sangue , Hipotireoidismo/complicações , Hipotireoidismo/diagnóstico , Ácidos Linoleicos/sangue , Ácidos Linoleicos Conjugados/sangue , Peroxidação de Lipídeos , Masculino , Pessoa de Meia-Idade , Estresse Oxidativo , Risco , Tiroxina/sangue
16.
Biochim Biophys Acta Rev Cancer ; 1879(2): 189058, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38113952

RESUMO

Ovarian cancer is a less common tumor in women compared to cervical or breast cancer, however it is more malignant and has worse outcomes. Ovarian cancer patients still have a five-year survival rate < 50% despite advances in therapy. Due to recent developments in immune checkpoint inhibitors (ICIs), cancer immunotherapy has attracted increased interest. Pyroptosis is a highly inflammatory form of cell death, which is essential for bridging innate and adaptive immunity, and is involved in immune regulation within the tumor microenvironment (TME). Recent research has shown that pyroptosis can promote immunotherapy of ovarian cancer, including treatment with chimeric antigen receptor T-cells (CAR-T) or ICIs. Moreover, inflammasomes, various signaling pathways and lncRNAs can all affect pyroptosis in ovarian cancer. Here we discuss how pyroptosis affects the development and progression of ovarian cancer as well as the TME. We also provide a summary of small molecule drugs that could target pyroptotic cell death processes and may be useful in ovarian cancer therapy.


Assuntos
Neoplasias da Mama , Neoplasias Ovarianas , Humanos , Feminino , Piroptose , Neoplasias Ovarianas/tratamento farmacológico , Imunoterapia , Morte Celular , Microambiente Tumoral
17.
J Sep Sci ; 36(24): 3853-9, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24133039

RESUMO

A new fluorescent labeling reagent has been developed for the determination of fatty acids (FAs) by HPLC with fluorescence detection. The derivatization conditions including the amount of derivatization reagent, temperature, and type of catalyst were investigated, the results indicated that the reaction proceeded within 30 min at 90°C in the presence of K2CO3 catalyst. The maximal yield was obtained with a four- to fivefold molar reagent excess. The derivatives exhibited strong fluorescence with an excitation maximum at λex = 245 nm and an emission maximum at λem = 410 nm. Twenty-five FA derivatives were well separated by RP-HPLC on a Hypersil BDS C8 column in combination with gradient elution. All FAs were found to give excellent linear responses with correlation coefficients >0.9992. The method gave a low LOQ of 0.85­5.5 ng/mL (S/N of 10). The developed method was employed to analyze free FAs (FFAs) composition in pomegranate samples without any purification. FFAs in samples were doubly identified by HPLC retention time and protonated molecular ion corresponding to m/z [M+H]+. This newly developed method allows a highly sensitive determination of trace FFAs from pomegranate and other foodstuffs.


Assuntos
Ácidos Graxos/análise , Fluorescência , Corantes Fluorescentes/química , Medições Luminescentes , Lythraceae/química , Cromatografia Líquida de Alta Pressão , Corantes Fluorescentes/análise , Corantes Fluorescentes/síntese química , Espectrometria de Fluorescência
18.
Front Public Health ; 11: 1049111, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36844828

RESUMO

Introduction: To investigate the major existing occupational hazards and to assess the occupational health risks for ferrous metal foundries (FMFs) in Ningbo, China. Methods: Unified questionnaires were formulated to investigate the information on the basic situations, occupational hazards, and occupational health management for 193 FMFs in Ningbo. Furthermore, we used the semi-quantitative risk assessment model, which was developed by the International Council on Mining and Metals (ICMM), to assess occupational health risks for 59 of 193 the FMFs. Results: The casting process of FMFs in Ningbo was mainly divided into sand casting and investment casting, and silica-dust and noise were the major occupational hazards in both sand casting and investment casting foundries. Silica-dust mainly occurred in industries with such work as sand handling, modeling, falling sand, and sand cleaning, with the median of the permissible concentration-time weighted average (PC-TWA) was 0.80, 1.15, 3.52, 0.83 mg/m3, respectively. The noise mainly existed in industries with such work as sand handling, core making, falling sand, sand cleaning, cutting and grinding, and smelting with median of PC-TWA was 81.72 dB(A), 82.93 dB(A), 90.75 dB(A), 80.18 dB(A), 90.05 dB(A), 82.70 dB(A), respectively. In addition, the results of the ICMM assessment model indicated that 100 and 98.7% of the jobs exposed to silica-dust and noise in 59 FMFs have an "intolerable risk" level of risks of causing pneumoconiosis and noise deaf, respectively. Discussion: The hazard risk of silica-dust and noise is serious for FMFs in Ningbo. It is necessary to supervise enterprises to improve operating environmental conditions, accelerate the reduction of silica-dust and noise exposure risks, and promote the healthy and sustainable development of the foundry industry.


Assuntos
Exposição Ocupacional , Exposição Ocupacional/análise , Areia , Poeira/análise , Medição de Risco , Dióxido de Silício/análise
19.
Front Public Health ; 11: 1194460, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38026299

RESUMO

Background: Death education has been confirmed to be an effective method to enhance nursing students' attitudes and coping abilities toward death. However, integrated Narrative Pedagogy into the death education to explore educational effectiveness is still limited. The study aimed to evaluate the effects of a death education based on Narrative Pedagogy in a palliative care course on the attitude toward death, coping with death, and attitude toward caring for the dying among undergraduate nursing students in China. Methods: The study was designed as a pre-post intervention study with a quasi-experimental design. All the participants received 6 class hours of death education which was designed in a palliative care course. The death education includes preparation, presentation, discussion, reflection, and practice of the narrative materials. Death Attitude Profile-Revised (DAP-R), Coping with Death Scale (CDS), and Frommelt Attitude Toward Care of the Dying-Form B (FATCOD-Form B) were used to measure outcomes. Results: Sixty undergraduate nursing students who consented. There were statistically significant increases in the mean score of neutral acceptance and approach acceptance in the DAP-R, CDS, and FATCOD-Form B before and after the intervention. Conclusion: This death education integrated Narrative Pedagogy which indicated to improve attitude toward death, competence to cope with death, and attitude toward the care of dying patients. The findings assist teachers in understanding the importance and urgency of death education, as well as providing a favorable approach to death education. However, the long-term effectiveness still needs to study in further.


Assuntos
Bacharelado em Enfermagem , Estudantes de Enfermagem , Assistência Terminal , Humanos , Cuidados Paliativos , População do Leste Asiático , Atitude do Pessoal de Saúde , Atitude Frente a Morte , Inquéritos e Questionários
20.
Diab Vasc Dis Res ; 20(3): 14791641231179867, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37300432

RESUMO

BACKGROUND: The purpose of this study is to assess metabolic indicators and trends in microvascular complications among Chinese adults with newly diagnosed type 2 diabetes during 2000-2020. METHODS: 3,907 patients were included and divided into three groups according to a time period of 7 years. This study analyzed trends in proportions of patients reached therapeutic targets of blood glucose, pressure and lipids, and trends in albuminuria, retinopathy, and peripheral neuropathy. RESULTS: In the past 20 years, the age of adults with newly diagnosed type 2 diabetes tended to be younger, and the proportion of female patients increased. There seemed no improvements in blood glucose and pressure. The rate of awareness and treatment on target of hypertension was less than 50%. There was a significant decrease in the prevalence of retinopathy, but no changes in nephropathy or peripheral neuropathy. Complications were more common for patients who were smoker, male, or with hypertension and obesity. CONCLUSIONS: Over the past two decades, there have been encouraging reductions in retinopathy in Chinese adults with newly diagnosed diabetes, but no significant change in albuminuria and peripheral neuropathy. It may be related to the low awareness of diabetes and insufficient controlled blood glucose, pressure and lipids on target.


Assuntos
Diabetes Mellitus Tipo 2 , Nefropatias Diabéticas , Retinopatia Diabética , Hipertensão , Doenças Retinianas , Adulto , Humanos , Masculino , Feminino , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/epidemiologia , Nefropatias Diabéticas/diagnóstico , Nefropatias Diabéticas/epidemiologia , Nefropatias Diabéticas/complicações , Glicemia/metabolismo , Estudos Retrospectivos , Albuminúria/diagnóstico , Albuminúria/epidemiologia , População do Leste Asiático , Retinopatia Diabética/diagnóstico , Retinopatia Diabética/epidemiologia , Retinopatia Diabética/complicações , Hipertensão/complicações , Doenças Retinianas/complicações , Lipídeos , Prevalência
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