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1.
J Multidiscip Healthc ; 17: 2461-2473, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38799017

RESUMO

Background: To investigate the association between the NLR and the risk of all-cause and cardiovascular mortality in US adults with diabetic kidney disease (DKD). Methods: The data utilized for this analysis were sourced from ten National Health and Nutrition Examination Survey cycles (1999-2018) with mortality data (up to 31 December 2019) via linkage to the National Death Index. The optimum NLR threshold for predicting survival outcomes was determined through the maximally selected rank statistics. Restricted cubic spline (RCS), weighted Cox proportional hazard regression, stratified analyses, and time-dependent receiver-operating characteristic curve (ROC) were employed to delineate the prospective correlations of the NLR with both all-cause and cardiovascular mortality. Results: In this investigation, a cohort comprising 2581 patients diagnosed with DKD was examined, encompassing 624 individuals with a higher NLR (≥3.07) and 1957 subjects with a lower NLR (<3.07). Over a median follow-up of 79 months (interquartile range, 44-128 months), 1103 deaths occurred, including 397 from cardiovascular causes and 706 from non-cardiovascular causes. The RCS analysis elucidated the positive linear correlation (both nonlinear P > 0.05). In the multivariable analyses, each one-unit increase in the NLR value was correlated with a 51% increased risk of all-cause mortality (1.51(1.28, 1.77)) and a 71% increased risk of cardiovascular mortality (1.71(1.32, 2.21)). The results were largely consistent across stratified analyses encompassing variables such as age, sex, race/ethnicity, marital status, family income, education levels, BMI, drinking status, smoking status, hypertension, CVD, and anti-infective drugs (P for interaction >0.05 for all). Time-dependent ROC analyses underscored the NLR's credible predictive efficacy for both short-term and extended durations in forecasting both all-cause and cardiovascular mortality. Conclusion: The findings emphasize the promising use of the NLR in stratifying and prognosticating the risk of mortality in DKD in clinical practice.

2.
Gen Hosp Psychiatry ; 87: 60-67, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38306947

RESUMO

OBJECTIVE: Few studies have explored the correlation between cardiovascular health (CVH) and depression. We aimed to investigate the relationship between CVH using Life's Essential 8 (LE8) and depression among US adults. METHODS: 16,362 individuals from the National Health and Nutrition Examination Survey (NHANES) from 2007 to 2018 were included. The patient Health Questionnaire (PHQ-9) was utilized to recognized depression (PHQ-9 ≥ 10). LE8 was scored by four health behaviors (sleep, tobacco/nicotine exposure, physical activity and diet) and four health factors (body mass index, non-high-density lipoprotein cholesterol, blood glucose and blood pressure) and classified into low, moderate and high CVH groups. Weighted logistic regressions, restricted cubic splines and sensitivity analyses were utilized to investigate the correlation between LE8 and depression. RESULTS: 1306 subjects had depression (7.98% of the participants), of which 860 (7.42%), 305 (17.24%) and 141 (3.01%) had low, moderate and high CVH, separately. In the fully adjusted model, LE8 was negatively correlated with depression (OR: 5.50, 95% CI 3.92-7.71, P < 0.001). Furthermore, there were inversely dose-response relationships between LE8 and depression (overall P < 0.001). CONCLUSIONS: Adhering to a high CVH, estimated by the LE8 score, was correlated with lower odds of depression.


Assuntos
Doenças Cardiovasculares , Depressão , Adulto , Humanos , Estados Unidos/epidemiologia , Inquéritos Nutricionais , Depressão/epidemiologia , Pressão Sanguínea , Índice de Massa Corporal , Exercício Físico , Doenças Cardiovasculares/epidemiologia , Fatores de Risco
3.
Front Nutr ; 10: 1075877, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37081920

RESUMO

Background and aims: Gout, the most prevalent inflammatory arthritis, has undesirable effects on the quality of life. Omega-3 polyunsaturated fatty acids (n-3 PUFA) has a strong link with anti-inflammatory impacts. However, whether the harmful effects of seafood in relation to gout may vary owing to different levels of n-3 PUFA in seafood is still unclear. It was the goal of this study to examine the relationship between n-3 PUFA poor/rich seafood consumption and gout. Methods: Between 2007 and 2016, five NHANES cycles were performed, with 12,505 subjects having complete data for gout and two 24-h dietary intake interviews. The 24-h dietary recalls were utilized to evaluate dietary habits. Gout was defined based on questionnaires. Weighted logistic regression models were conducted to investigate the association between n-3 PUFA poor/rich seafood consumption and gout. Moreover, subgroup analysis was utilized to estimate the stability of results. Covariates including age, gender, race/ethnicity, income, education, body mass index, chronic kidney disease, diabetes mellitus, hypertension, smoking status, and drinking status were stratified in different models. Results: In the fully adjusted model, each unit of increase of n-3 PUFA poor seafood intake was associated with an 8.7% increased risk of gout (OR = 1.087, 95% CI: 1.039, 1.138, P < 0.001), whereas, no correlation was found between n-3 PUFA rich seafood consumption and gout. It also provided a proof-of-concept regarding the potential for n-3 PUFA rich seafood to counteract harmful effects of purines in relation to gout. A dose-response analysis showed that there was a non-linear relationship between n-3 PUFA rich seafood intake and the risk of gout in the female group. Conclusion: Findings suggest that n-3 PUFA poor seafood consumption is associated with higher risk of gout, whereas n-3 PUFA rich seafood is not.

4.
J Orthop Surg Res ; 18(1): 1, 2023 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-36593489

RESUMO

BACKGROUND: Osteoporosis is a major public health problem. Dietary inflammatory preference and body mass index (BMI) are emerging factors that tends to affect bone health. There is limited evidence regarding the joint influence of BMI and dietary status on the bone health. This study aimed to investigate the relationship between dietary inflammatory index (DII) and bone health among adults under different levels of BMI utilizing the National Health and Nutrition Examination Survey (NHANES). METHODS: Data were collected from 2005-2010, 2013-2014 to 2017-2018 in NHANES. In total, 10,521 participants who aged ≥ 20 years and had complete data for dietary intake interview, bone mineral density (BMD) and bone mineral content (BMC) were included. DII was performed to evaluate the dietary inflammatory potential based on dietary intake interview. We evaluated bone health by femoral neck BMD and BMC measured by dual energy X-ray absorptiometry. Weighted multivariable linear regression and BMI-stratified subgroup analysis were performed. RESULTS: The average DII score for 10,521 participants was 1.24 ± 0.04, mean femoral neck BMD was 0.82 ± 0.00 g/cm2 and mean BMC was 4.37 ± 0.01 g. In the fully adjusted model, there was a negative correlation between DII with BMD (ß = - 0.016, P < 0.001) and BMC (ß = - 0.011, P < 0.001) in the most anti-inflammatory diet. Using BMI-stratified subgroup analysis, this correlation became more evident in both the overweight (BMD: ß = - 0.024, P < 0.001; BMC: ß = - 0.058, P = 0.042) and obese groups (BMD: ß = - 0.015, P = 0.049; BMC: ß = - 0.009, P = 0.042), while this correlation was opposite in DII tertile 2 (middle DII score) in the underweight group (BMD: ß = 0.047, P = 0.038; BMC: ß = 0.274, P = 0.010). CONCLUSION: Relationship between higher consumption of pro-inflammatory and increased risk of lower BMD and BMC was only existed in overweight and obese participants.


Assuntos
Densidade Óssea , Sobrepeso , Adulto , Humanos , Índice de Massa Corporal , Inquéritos Nutricionais , Dieta/efeitos adversos , Absorciometria de Fóton , Inflamação , Obesidade
5.
Biomed J ; 45(2): 347-360, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35550340

RESUMO

BACKGROUND: Colorectal cancer (CRC) is a major health concern globally, but exhibits regional and/or environmental distinctions in terms of outcome especially for patients with stage III CRC. METHODS: From 2014 to 2016, matched pairs of tumor and adjacent normal tissue samples from 60 patients with stage I-IV CRC from Chang Gung Memorial Hospital in Taiwan were analyzed using next-generation sequencing. The DNA, mRNA, and miRNA sequences of paired tumor tissues were profiled. An observational study with survival analysis was done. Online datasets of The Cancer Genome Atlas (TCGA) and The International Cancer Genome Consortium (ICGC) were also integrated and compared. RESULTS: The gene that exhibited the highest mutation rate was adenomatous polyposis coli (APC) (75.0%), followed by TP53 (70.0%), KRAS (56.6%), and TTN (48.3%). APC was also the most frequently mutated gene in TCGA and ICGC datasets. Surprisingly, for non-metastatic cases (stages I-III), CRC patients with mutated APC had better outcome in terms of overall survival (p = 0.041) and recurrence free survival (p = 0.0048). Particularly for stage III CRC, the overall survival rate was 94.4% and 67.7%, respectively (p = 0.018), and the recurrence free survival rate was 94.4% and 16.7%, respectively (p = 0.00044). Further clinical and gene expression analyses revealed that the APC wt specimens to a greater extent exhibit poor differentiation state as well as EGFR upregulation, providing molecular basis for the poor prognosis of these patients. Finally, based on integrated transcriptome analysis, we constructed the mRNA-miRNA networks underlying disease recurrence of the stage III CRC and uncovered potential therapeutic targets for this clinical condition. CONCLUSION: For stage III CRC, patients with mutated APC had better overall and recurrence free survival.


Assuntos
Polipose Adenomatosa do Colo , Neoplasias Colorretais , Genes APC , MicroRNAs , Mutação , Polipose Adenomatosa do Colo/genética , Proteína da Polipose Adenomatosa do Colo/genética , Neoplasias Colorretais/genética , Neoplasias Colorretais/patologia , Genômica , Humanos , MicroRNAs/genética , Mutação/genética , Recidiva Local de Neoplasia , RNA Mensageiro/genética
6.
Front Pharmacol ; 11: 583291, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33281604

RESUMO

A previous study reported that scabronine G methyl ester (SG-ME) potentially enhances the in vitro secretion of neurotrophic factors such as nerve growth factor via the protein kinase C (PKC)-ζ pathway. However, it remains unknown whether SG-ME can improve cognitive dysfunctions in olfactory bulbectomized (OBX) mice. To address this question, we evaluated SG-ME-treated and untreated OBX mice in a passive avoidance test. We also investigated potential effects of SG-ME on several parameters: cell proliferation and cAMP response element-binding protein (CREB) phosphorylation in the hippocampal dentate gyrus by immunohistochemistry, brain-derived neurotrophic factor (BDNF) levels in the hippocampus by Western blotting, p-CREB levels in the hippocampus by MapAnalyzer, and long-term potentiation (LTP) by electrophysiology. On the 14th day after surgery OBX mice showed altered passive avoidance and decreases in both cell proliferation and long-term potentiation in the hippocampus, while these changes were reversed by SG-ME (20 µg/mouse) 24 h after the treatment. The improvement in memory deficits was prevented when SG-ME was co-administeredwith either zeta inhibitory peptide (PKC-ζ inhibitor), anti-BDNF antibody, ANA-12 (TrkB antagonist), U0126 (MEK inhibitor), H-89 (PKA inhibitor), LY294002 (PI3K inhibitor) or KN-93 (CaMKII inhibitor). We found that SG-ME enhanced brain-derived neurotrophic factor and p-CREB levels in the hippocampus while p-CREB was localized in neurons, but not in astrocytes nor microglial cells. These findings revealed the potential of SG-ME in improving memory impairments by enhancing cell proliferation and LTP via activation of the BDNF/CREB signaling pathway in neurons.

7.
Sci Rep ; 10(1): 4526, 2020 03 11.
Artigo em Inglês | MEDLINE | ID: mdl-32161294

RESUMO

Colorectal cancer (CRC) is one of the most commonly diagnosed cancers worldwide. While both genetic and environmental factors have been linked to the incidence and mortality associated with CRC, an ethnic aspect of its etiology has also emerged. Since previous large-scale cancer genomics studies are mostly based on samples of European ancestry, the patterns of clinical events and associated mechanisms in other minority ethnic patients suffering from CRC are largely unexplored. We collected 104 paired and adjacent normal tissue and CRC tumor samples from Taiwanese patients and employed an integrated approach - paired expression profiles of mRNAs and microRNAs (miRNAs) combined with transcriptome-wide network analyses - to catalog the molecular signatures of this regional cohort. On the basis of this dataset, which is the largest ever reported for this type of systems analysis, we made the following key discoveries: (1) In comparison to the The Cancer Genome Atlas (TCGA) data, the Taiwanese CRC tumors show similar perturbations in expressed genes but a distinct enrichment in metastasis-associated pathways. (2) Recurrent as well as novel CRC-associated gene fusions were identified based on the sequencing data. (3) Cancer subtype classification using existing tools reveals a comparable distribution of tumor subtypes between Taiwanese cohort and TCGA datasets; however, this similarity in molecular attributes did not translate into the predicted subtype-related clinical outcomes (i.e., death event). (4) To further elucidate the molecular basis of CRC prognosis, we developed a new stratification strategy based on miRNA-mRNA-associated subtyping (MMAS) and consequently showed that repressed WNT signaling activity is associated with poor prognosis in Taiwanese CRC. In summary, our findings of distinct, hitherto unreported biosignatures underscore the heterogeneity of CRC tumorigenesis, support our hypothesis of an ethnic basis of disease, and provide prospects for translational medicine.


Assuntos
Transformação Celular Neoplásica/genética , Neoplasias Colorretais/etiologia , Perfilação da Expressão Gênica , Transcriptoma , Biomarcadores Tumorais , Neoplasias Colorretais/epidemiologia , Biologia Computacional/métodos , Feminino , Regulação Neoplásica da Expressão Gênica , Humanos , Masculino , MicroRNAs/genética , Gradação de Tumores , Metástase Neoplásica , Estadiamento de Neoplasias , Prognóstico , Interferência de RNA , RNA Mensageiro/genética , Taiwan/epidemiologia
8.
J Pharmacol Sci ; 143(1): 52-55, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32115365

RESUMO

Recently, we has reported that AMPK activator has antidepressant effect. Previous our study suggested that liver hydrolysate (LH) activated adenosine monophosphate-activated protein kinase (AMPK) in periphery. However, the effect of LH on depression is unclear. Therefore, we examines whether LH has antidepressant effect on olfactory bulbectomized (OBX) mice. OBX mice showed depressive-like behavior in tail-suspension test and reduction of hippocampal neurogenesis, while these changes were reversed by LH. LH enhanced hippocampal phosphate-AMPK, brain-derived neurotrophic factor (BDNF) and phosphate-cyclic adenosine monophosphate response element-binding protein (CREB) in OBX mice. These data indicate that LH may produce antidepressant effects via hippocampal AMPK/BDNF/CREB signaling.


Assuntos
Proteínas Quinases Ativadas por AMP/metabolismo , Fator Neurotrófico Derivado do Encéfalo/metabolismo , Proteína de Ligação ao Elemento de Resposta ao AMP Cíclico/metabolismo , Transtorno Depressivo/tratamento farmacológico , Transtorno Depressivo/etiologia , Hipocampo/fisiologia , Neurogênese , Bulbo Olfatório/fisiologia , Bulbo Olfatório/cirurgia , Hidrolisados de Proteína/farmacologia , Hidrolisados de Proteína/uso terapêutico , Transdução de Sinais/genética , Transdução de Sinais/fisiologia , Animais , Transtorno Depressivo/genética , Modelos Animais de Doenças , Masculino , Camundongos Endogâmicos
9.
Neuropharmacology ; 150: 121-133, 2019 05 15.
Artigo em Inglês | MEDLINE | ID: mdl-30914305

RESUMO

Adenosine monophosphate-activated protein kinase (AMPK) is critical for whole-body energy metabolism regulation. Recent studies have suggested that physical exercise ameliorates depressive-like behaviors via AMPK activation; however, the underlying mechanism is unclear. Here, we examined the effects and underlying mechanisms of AMPK activation on depressive-like behavior in olfactory bulbectomized (OBX) mice. We treated OBX mice with the AMPK activator, 5-aminoimidazole-4-carboxamide-1-ß-d-ribonucleotide (AICAR) on the 7th or 14th day after bilateral bulbectomy and evaluated depressive-like behavior using the tail-suspension test (TST) and forced swimming test (FST) on the 21st day. The expression of phosphorylated AMPK, protein kinase C ζ (PKCζ), nuclear factor-kappa B (NF-κB), brain-derived neurotrophic factor (BDNF), and cAMP response element-binding protein (CREB) in the hippocampus was assessed by western blotting. Hippocampal neurogenesis and localization of AMPK and phosphorylated NF-κB were examined by immunohistochemistry. Chronic AICAR treatment suppressed the prolonged immobility of OBX mice in the TST and FST, and increased the levels of phosphorylated AMPK, PKCζ, NF-κB, CREB, and BDNF. Hippocampal neurogenesis in OBX mice was promoted by chronic AICAR treatment. Co-administration of AICAR with the PKCζ inhibitor or the neurotrophic tyrosine kinase receptor type 2 (TrkB) antagonist, ANA-12, inhibited these effects. Phosphorylated AMPK was detected in mature and immature hippocampal neurons and microglia, while phosphorylated NF-κB was detected only in neurons in AICAR-treated OBX mice. These data indicate that AMPK activation produces anti-depressant effects, which are mediated by elevated hippocampal neurogenesis potentially via PKCζ/NF-κB/BDNF/TrkB/CREB signaling in neurons.


Assuntos
Proteínas Quinases Ativadas por AMP/antagonistas & inibidores , Aminoimidazol Carboxamida/análogos & derivados , Depressão/metabolismo , Hipocampo/efeitos dos fármacos , Neurogênese/efeitos dos fármacos , Ribonucleotídeos/farmacologia , Proteínas Quinases Ativadas por AMP/metabolismo , Aminoimidazol Carboxamida/farmacologia , Animais , Fator Neurotrófico Derivado do Encéfalo/metabolismo , Proteína de Ligação ao Elemento de Resposta ao AMP Cíclico/metabolismo , Modelos Animais de Doenças , Elevação dos Membros Posteriores , Hipocampo/metabolismo , Masculino , Camundongos , NF-kappa B/metabolismo , Fosforilação/efeitos dos fármacos , Transdução de Sinais/efeitos dos fármacos
10.
Behav Brain Res ; 297: 315-22, 2016 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-26497104

RESUMO

We have reported that the carborane compound BE360 is a novel selective estrogen receptor modulator and new therapy option for osteoporosis. The aim of this study was to explore the effects and underlying mechanisms of BE360 on depressive-like behavior and memory impairment in the olfactory bulbectomized (OBX) mice, an experimental animal model of depression and dementia. BE360 was administered subcutaneously to mice using a mini-osmotic pump for 2 weeks. Depressive-like behavior was measured as the reduced intake of a sweet solution in the sucrose preference test. Short-term memory was assessed using the Y-maze test. Cell proliferation was assessed by the analysis of cells expressing 5-bromo-2'-deoxyuridine (BrdU) uptake. The expression of phosphorylated cyclic-AMP response element binding protein (pCREB) and brain-derived neurotrophic factor (BDNF) were measured by immunoblot. The depressive-like behavior and memory impairment in OBX mice were improved by the chronic treatment with BE360. Immunohistochemical analysis showed that the number of BrdU-positive cells in the dentate gyrus of the hippocampus significantly decreased in OBX mice whereas they increased after the chronic treatment with BE360. Immunoblotting studies revealed that pCREB and BDNF were significantly increased in the hippocampus of OBX mice treated with BE360. The present study has shown that BE360 has antidepressant and antidementia effects characterized by hippocampal cell proliferation potentially activated via CREB/BDNF signaling pathways. These results indicate that BE360 may have valuable therapeutic potential against depression and neurodegenerative diseases.


Assuntos
Antidepressivos/farmacologia , Compostos de Boro/farmacologia , Transtornos Cognitivos/tratamento farmacológico , Transtorno Depressivo/tratamento farmacológico , Hipocampo/efeitos dos fármacos , Nootrópicos/farmacologia , Anedonia/efeitos dos fármacos , Anedonia/fisiologia , Animais , Fator Neurotrófico Derivado do Encéfalo/metabolismo , Transtornos Cognitivos/patologia , Transtornos Cognitivos/fisiopatologia , Proteína de Ligação ao Elemento de Resposta ao AMP Cíclico/metabolismo , Transtorno Depressivo/patologia , Transtorno Depressivo/fisiopatologia , Modelos Animais de Doenças , Feminino , Hipocampo/patologia , Hipocampo/fisiopatologia , Aprendizagem em Labirinto/efeitos dos fármacos , Aprendizagem em Labirinto/fisiologia , Memória de Curto Prazo/efeitos dos fármacos , Memória de Curto Prazo/fisiologia , Camundongos , Neurogênese/efeitos dos fármacos , Neurogênese/fisiologia , Bulbo Olfatório/fisiopatologia , Moduladores Seletivos de Receptor Estrogênico/farmacologia , Transdução de Sinais/efeitos dos fármacos
11.
Chin J Physiol ; 58(5): 302-11, 2015 Oct 31.
Artigo em Inglês | MEDLINE | ID: mdl-26387654

RESUMO

Safrole is a carcinogen found in plants. The effect of safrole on cytosolic free Ca²âº concentrations ([Ca²âº](i)) and viability in SCM1 human gastric cancer cells was explored. The Ca²âº-sensitive fluorescent dye fura-2 was applied to measure [Ca²âº](i). Safrole at concentrations of 150-450 µM induced a [Ca²âº](i) rise in a concentration-dependent manner. The response was reduced by 60% by removing extracellular Ca²âº. Safrole-evoked Ca²âº entry was not altered by nifedipine, econazole, SKF96365, and protein kinase C activator or inhibitor. In Ca²âº-free medium, treatment with the endoplasmic reticulum Ca²âº pump inhibitor thapsigargin or 2,5-di-tert-butylhydroquinone (BHQ) abolished safrole-evoked [Ca²âº](i) rises. Conversely, treatment with safrole abolished thapsigargin or BHQ-evoked [Ca²âº](i) rises. Inhibition of phospholipase C (PLC) with U73122 abolished safrole-induced [Ca²âº](i) rises. At 250-550 µM, safrole decreased cell viability concentration-dependently, which was not reversed by chelating cytosolic Ca²âº with 1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid/acetoxy methyl (BAPTA/AM). Annexin V/propidium iodide staining data suggest that safrole (350-550 µM) induced apoptosis concentration-dependently. These studies suggest that in SCM1 human gastric cancer cells, safrole induced [Ca²âº](i) rises by inducing PLC-dependent Ca²âº release from the endoplasmic reticulum and Ca²âº influx via non-store-operated Ca²âº entry pathways. Safrole-induced cell death may involve apoptosis.


Assuntos
Apoptose/efeitos dos fármacos , Cálcio/metabolismo , Safrol/efeitos adversos , Estômago/efeitos dos fármacos , Morte Celular , Linhagem Celular Tumoral , Fura-2 , Humanos , Fosfolipases Tipo C/metabolismo
12.
Chin J Physiol ; 58(1): 1-8, 2015 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-25687486

RESUMO

Methoxychlor, an organochlorine pesticide, is thought to be an endocrine disrupter that affects Ca²âº homeostasis and cell viability in different cell models. This study explored the action of methoxychlor on cytosolic free Ca²âº concentrations ([Ca²âº]i) and apoptosis in HA59T human hepatoma cells. Fura-2, a Ca²âº-sensitive fluorescent dye, was applied to measure [Ca²âº]i. Methoxychlor at concentrations of 0.1-1 µM caused a [Ca²âº]i rise in a concentration-dependent manner. Removal of external Ca²âº abolished methoxychlor's effect. Methoxychlor-induced Ca²âº influx was confirmed by Mn²âº-induced quench of fura-2 fluorescence. Methoxychlor-induced Ca²âº entry was inhibited by nifedipine, econazole, SK&F96365, and protein kinase C modulators. Methoxychlor killed cells at concentrations of 10-130 µM in a concentration-dependent fashion. Chelation of cytosolic Ca²âº with 1,2-bis(2-aminophenoxy) ethane-N,N,N',N'-tetraacetic acid/AM (BAPTA/AM) did not prevent methoxychlor's cytotoxicity. Methoxychlor (10 and 50 µM) induced apoptosis concentration-dependently as determined by using Annexin V/propidium iodide staining. Together, in HA59T cells, methoxychlor induced a [Ca²âº]i rise by inducing Ca²âº entry via protein kinase C-sensitive Ca²âº-permeable channels, without causing Ca²âº release from stores. Methoxychlor also induced apoptosis that was independent of [Ca²âº]i rises.


Assuntos
Apoptose/efeitos dos fármacos , Cálcio/metabolismo , Carcinoma Hepatocelular/metabolismo , Homeostase/efeitos dos fármacos , Inseticidas/farmacologia , Neoplasias Hepáticas/metabolismo , Metoxicloro/farmacologia , Carcinoma Hepatocelular/patologia , Linhagem Celular Tumoral , Sobrevivência Celular/efeitos dos fármacos , Relação Dose-Resposta a Droga , Humanos , Neoplasias Hepáticas/patologia
13.
Toxicol Mech Methods ; 25(2): 113-9, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25406855

RESUMO

Deoxycholic acid (DOA) is one of the secondary bile acids used as a mild detergent for the isolation of membrane associated proteins. This study examined whether the secondary bile acid, DOA, altered Ca(2+) movement, cell viability and apoptosis in SCM1 human gastric cancer cells. The Ca(2+)-sensitive fluorescent dye fura-2 was used to measure [Ca(2+)]i. DOA-evoked [Ca(2+)]i rises concentration dependently. The response was reduced by removing extracellular Ca(2+). DOA-evoked Ca(2+) entry was inhibited by store-operated Ca(2+) channel inhibitors (nifedipine, econazole and SKF96365), the protein kinase C (PKC) activator phorbol 12-myristate 13 acetate (PMA) and the PKC inhibitor GF109203X. In Ca(2+)-free medium, treatment with the endoplasmic reticulum Ca(2+) pump inhibitor thapsigargin (TG) abolished DOA-evoked [Ca(2+)]i rises. Conversely, treatment with DOA abolished TG-evoked [Ca(2+)]i rises. Inhibition of phospholipase C with U73122 abolished DOA-evoked [Ca(2+)]i rises. At 100-500 µM, DOA decreased cell viability, which was not changed by chelating cytosolic Ca(2+) with 1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid-acetoxymethyl ester (BAPTA/AM). DOA between 100 and 300 µM also induced apoptosis. Collectively, in SCM1 cells, DOA-induced [Ca(2+)]i rises by evoking phospholipase C-dependent Ca(2+) release from the endoplasmic reticulum and Ca(2+) entry via store-operated Ca(2+) channels. DOA also caused Ca(2+)-independent apoptosis.


Assuntos
Antineoplásicos/farmacologia , Apoptose/efeitos dos fármacos , Sinalização do Cálcio/efeitos dos fármacos , Cálcio/metabolismo , Sobrevivência Celular/efeitos dos fármacos , Ácido Desoxicólico/farmacologia , Neoplasias Gástricas/tratamento farmacológico , Bloqueadores dos Canais de Cálcio/farmacologia , Quelantes de Cálcio/farmacologia , Linhagem Celular Tumoral , Relação Dose-Resposta a Droga , Ativação Enzimática , Ativadores de Enzimas/farmacologia , Fura-2/análogos & derivados , Fura-2/metabolismo , Humanos , Microscopia de Fluorescência , Proteína Quinase C/antagonistas & inibidores , Proteína Quinase C/metabolismo , Inibidores de Proteínas Quinases/farmacologia , ATPases Transportadoras de Cálcio do Retículo Sarcoplasmático/antagonistas & inibidores , ATPases Transportadoras de Cálcio do Retículo Sarcoplasmático/metabolismo , Neoplasias Gástricas/metabolismo , Neoplasias Gástricas/patologia , Fatores de Tempo
14.
Hu Li Za Zhi ; 61(5): 97-103, 2014 Oct.
Artigo em Chinês | MEDLINE | ID: mdl-25271038

RESUMO

This case study used cognitive therapy to improve the life quality of a 46-year-old woman with chronic schizophrenia who had undergone a mastectomy for breast cancer. This case had suffered from schizophrenia for over 24 years and was hospitalized in the chronic ward of our hospital. Breast cancer was revealed during an annual comprehensive physical checkup. In May 2012, this case received a right mastectomy at a local hospital. After the surgery, she was readmitted to the psychiatric acute ward for further care from May 30th to August 28th, 2012. A holistic nursing assessment was conducted that addressed five major aspects. The major nursing problems found during hospitalization were: acute pain, body image disturbance, and low self-esteem. A decline in pain score from 10 to 4 was achieved by developing rapport with the patient, empathizing with her distress, and providing active care to the wound. Her body image changed because of loosing her breast. Her acceptance of the loss improved through helping her to explore her feelings of change. To improve her self-esteem, we offered cognitive therapy to change her negative thinking process. She became more sanguine and cheerful. Moreover, her dependence in terms of activities of daily living decreased. This individualized intervention contributed to the recovery of a post-mastectomy, schizophrenic patient from low self-esteem.


Assuntos
Neoplasias da Mama/psicologia , Terapia Cognitivo-Comportamental , Mastectomia/psicologia , Esquizofrenia/terapia , Neoplasias da Mama/enfermagem , Neoplasias da Mama/cirurgia , Feminino , Humanos , Mastectomia/enfermagem , Pessoa de Meia-Idade , Autoimagem
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