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1.
J Immunol ; 207(7): 1812-1823, 2021 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-34462312

RESUMO

Radiation is associated with tissue damage and increased risk of atherosclerosis, but there are currently no treatments and a very limited mechanistic understanding of how radiation impacts tissue repair mechanisms. We uncovered that radiation significantly delayed temporal resolution programs that were associated with decreased efferocytosis in vivo. Resolvin D1 (RvD1), a known proresolving ligand, promoted swift resolution and restored efferocytosis in sublethally irradiated mice. Irradiated macrophages exhibited several features of senescence, including increased expression of p16INK4A and p21, heightened levels of SA-ß-gal, COX-2, several proinflammatory cytokines/chemokines, and oxidative stress (OS) in vitro, and when transferred to mice, they exacerbated inflammation in vivo. Mechanistically, heightened OS in senescent macrophages led to impairment in their ability to carry out efficient efferocytosis, and treatment with RvD1 reduced OS and improved efferocytosis. Sublethally irradiated Ldlr -/- mice exhibited increased plaque necrosis, p16INK4A cells, and decreased lesional collagen compared with nonirradiated controls, and treatment with RvD1 significantly reduced necrosis and increased lesional collagen. Removal of p16INK4A hematopoietic cells during advanced atherosclerosis with p16-3MR mice reduced plaque necrosis and increased production of key intraplaque-resolving mediators. Our results demonstrate that sublethal radiation drives macrophage senescence and efferocytosis defects and suggest that RvD1 may be a new therapeutic strategy to limit radiation-induced tissue damage.


Assuntos
Aterosclerose/imunologia , Doenças Cardiovasculares/imunologia , Ácidos Docosa-Hexaenoicos/metabolismo , Células-Tronco Hematopoéticas/fisiologia , Macrófagos/imunologia , Lesões por Radiação/imunologia , Cicatrização/efeitos da radiação , Animais , Aterosclerose/genética , Células Cultivadas , Senescência Celular , Ciclo-Oxigenase 2/metabolismo , Genes p16 , Humanos , Inflamação , Camundongos , Camundongos Knockout , Radiação
2.
J Clin Lab Anal ; 37(1): e24798, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36510349

RESUMO

BACKGROUND: The aim of this study was to evaluate the anthropometric measurements most associated with type 2 diabetes mellitus (T2DM) using machine learning approaches. METHODS: A prospective study was designed for a total population of 9354 (43% men and 57% women) aged 35-65. Anthropometric measurements include weight, height, demispan, Hip Circumference (HC), Mid-arm Circumference (MAC), Waist Circumference (WC), Body Roundness Index (BRI), Body Adiposity Index (BAI), A Body Shape Index (ABSI), Body Mass Index (BMI), Waist-to-height Ratio (WHtR), and Waist-to-hip Ratio (WHR) were completed for all participants. The association was assessed using logistic regression (LR) and decision tree (DT) analysis. Receiver operating characteristic (ROC) curve was performed to evaluate the DT's accuracy, sensitivity, and specificity using R software. RESULTS: Traditionally, 1461 women and 875 men with T2DM (T2DM group). According to the LR, in males, WC and BIA (p-value < 0.001) and in females, demispan and WC (p-value < 0.001) had the highest correlation with T2DM development risk. The DT indicated that WC has the most crucial effect on T2DM development risk, followed by HC, and BAI. CONCLUSIONS: Our results showed that in both men and women, WC was the most important anthropometric factor to predict T2DM.


Assuntos
Diabetes Mellitus Tipo 2 , Masculino , Humanos , Feminino , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/complicações , Estudos Prospectivos , Obesidade/epidemiologia , Índice de Massa Corporal , Circunferência da Cintura , Relação Cintura-Quadril , Razão Cintura-Estatura , Curva ROC , Fatores de Risco
3.
Crit Rev Food Sci Nutr ; 62(29): 8120-8136, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34039222

RESUMO

The role of dietary diversity in chronic disease or survival is controversial. This meta-analysis quantified the health impact of dietary diversity. Random-effects models pooled risk ratios (RRs) and 95% confidence intervals (CIs) of 20 longitudinal studies. Total dietary diversity was associated with a 22% lower risk of all-cause mortality (RR 0.78 [95%CI: 0.64, 0.96]), and was inversely associated with incident cancer- or CVD-specific mortality only in subgroup analyses (RR range: 0.53 to 0.90, p < 0.05). Similarly, diversity across healthy foods was inversely associated with all-cause mortality (RR 0.84 [95%CI: 0.73, 0.96]). An inverse association between total diet diversity and incident CVD was significant in non-European populations consuming diets with diverse food groups (RR: 0.93 [95% CI: 0.86-0.99]). Effects on cancer risk are unstudied. Diversity within fruits and/or vegetables showed null associations for all outcomes, except potentially for squamous cell-type carcinomas. More robust research is warranted. Findings indicated greater dietary diversity may benefit overall survival.


Assuntos
Doenças Cardiovasculares , Neoplasias , Doenças Cardiovasculares/etiologia , Dieta , Humanos , Estudos Longitudinais , Estudos Observacionais como Assunto , Fatores de Risco , Verduras
4.
Arterioscler Thromb Vasc Biol ; 41(3): 1062-1075, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33472399

RESUMO

OBJECTIVE: Plaque necrosis is a key feature of defective resolution in atherosclerosis. Recent evidence suggests that necroptosis promotes plaque necrosis; therefore, we sought to determine how necroptotic cells (NCs) impact resolution programs in plaques. Approach and Results: To investigate the role(s) of necroptosis in advanced atherosclerosis, we used mice deficient of Mlkl, an effector of necroptosis. Mlkl-/- mice that were injected with a gain-of-function mutant PCSK9 (AAV8-gof-PCSK9) and fed a Western diet for 16 weeks, showed significantly less plaque necrosis, increased fibrous caps and improved efferocytosis compared with AAV8-gof-PCSK9 injected wt controls. Additionally, hypercholesterolemic Mlkl-/- mice had a significant increase in proresolving mediators including resolvin D1 (RvD1) and a decrease in prostanoids including thromboxane in plaques and in vitro. We found that exuberant thromboxane released by NCs impaired the clearance of both apoptotic cells and NCs through disruption of oxidative phosphorylation in macrophages. Moreover, we found that NCs did not readily synthesize RvD1 and that exogenous administration of RvD1 to macrophages rescued NC-induced defective efferocytosis. RvD1 also enhanced the uptake of NCs via the activation of p-AMPK (AMP-activated protein kinase), increased fatty acid oxidation, and enhanced oxidative phosphorylation in macrophages. CONCLUSIONS: These results suggest that NCs derange resolution by limiting key SPMs and impairing the efferocytic repertoire of macrophages. Moreover, these findings provide a molecular mechanism for RvD1 in directing proresolving metabolic programs in macrophages and further suggests RvD1 as a potential therapeutic strategy to limit NCs in tissues. Graphic Abstract: A graphic abstract is available for this article.


Assuntos
Ácidos Docosa-Hexaenoicos/metabolismo , Ácidos Graxos/metabolismo , Macrófagos/metabolismo , Necroptose/fisiologia , Ácido 15-Hidroxi-11 alfa,9 alfa-(epoximetano)prosta-5,13-dienoico/farmacologia , Proteínas Quinases Ativadas por AMP/metabolismo , Animais , Apoptose , Feminino , Macrófagos/efeitos dos fármacos , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Necrose , Fosforilação Oxidativa , Fagocitose , Placa Aterosclerótica/metabolismo , Placa Aterosclerótica/patologia , Prostaglandinas/metabolismo , Proteínas Quinases/deficiência , Proteínas Quinases/genética
5.
Metab Brain Dis ; 37(2): 473-488, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34982352

RESUMO

Sanguisorba minor (S. minor) has neuroprotective and antioxidant activities. However, its potential benefits in ameliorating learning and memory functions have been explored in no studies up to now. So, in the current study, rats were treated with S. minor hydro-ethanolic extract (50, 100, and 200 mg/kg, intraperitoneal (i.p.)) as well as rivastigmine (0.5 mg/kg, i.p.) for 21 consecutive days. Thereafter, their behavioral performance was assessed using Morris water maze (MWM) and passive avoidance (PA) tasks. Notably, 30 min before conducting the tasks, scopolamine was injected. Finally, the biochemical assessments were done using the brain tissue. The extract characterization was performed by liquid chromatography-mass spectrometry, which confirmed the presence of quercetin, myricetin, kaempferol, catechin, ellagic acid, and gallic acid derivatives. In the MWM test, the extract reduced both escape latency and the travelled distance, compared to the scopolamine group. Moreover, in the PA test, the latency to enter the dark chamber significantly increased by the extract, compared to the scopolamine group (p < 0.05-p < 0.001). Notably, the beneficial effects of S. minor on cognitive performance of the scopolamine-treated rats appeared to be similar or even better than rivastigmine in behavior performance. Similar to rivastigmine, it was observed that the extract attenuated both AChE activity and oxidative injury in the brain as evidenced by the increased antioxidant enzymes and total thiol content; however, it decreased malondialdehyde level (p < 0.05-p < 0.001). In conclusion, the results suggested the effectiveness of S. minor in preventing cognitive dysfunction induced by scopolamine. Accordingly, these protective effects might be produced by the regulation of cholinergic activity and oxidative stress. S. minor could be considered as a potential alternative therapy in cognition disorders.


Assuntos
Sanguisorba , Escopolamina , Acetilcolinesterase/metabolismo , Animais , Aprendizagem em Labirinto , Transtornos da Memória/induzido quimicamente , Transtornos da Memória/tratamento farmacológico , Estresse Oxidativo , Extratos Vegetais/farmacologia , Extratos Vegetais/uso terapêutico , Ratos , Sanguisorba/metabolismo , Escopolamina/farmacologia
6.
BMC Nurs ; 21(1): 3, 2022 Jan 04.
Artigo em Inglês | MEDLINE | ID: mdl-34983498

RESUMO

BACKGROUND: Providing safe and high-quality nursing care is an essential task of nursing. Nurses may be unable to provide patients with all of the necessary care for numerous reasons, such as an increase in the number of patients and a low number of nursing staff. Moreover, they may have to omit, postpone, or incompletely perform a series of care, referred to as missed nursing care. The purpose of this study was to translate and conduct psychometric testing of the MISSCARE Survey. METHOD: In this study, we accurately translated the MISSCARE Survey. Its acceptability, construct validity, and internal consistency were analyzed. This cross-sectional study was conducted in the summer of 2020 in educational hospitals in Ardabil, Iran. The participants were 300 nurses who worked in educational hospitals and were randomly selected. RESULTS: Participants in this study included 300 nurses from five units, including general medicine (13.3%), COVID-19 (45.0%), surgery (18.7%), critical care unit (6.3%), and intensive care unit (16.7%), who worked various shifts, of whom 84.7% were female. The total content validity in Part A was 0.944, and that in Part B was 0.969. Part A was divided into three domains (necessary care, secondary care, and supportive care), and Part B was divided into five domains (communication, labor resources, material resources, responsibility, and unpredictable situations). In both parts, the chi-square index was < 3, and the RMSEA index was < 0.08. The internal consistency measured by Cronbach's alpha was 0.933 for Part A and 0.910 for Part B for the Persian version of the MISSCARE Survey. CONCLUSION: Based on the outcomes of this research, it can be concluded that the Persian version of the MISSCARE Survey is valid for use in Iranian hospitals and can be used to identify missed care and the reasons behind it. Nursing managers can also use it to improve the situation and provide the highest-quality care.

7.
FASEB J ; 34(1): 597-609, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31914705

RESUMO

Inflammation-resolution is mediated by the balance between specialized pro-resolving mediators (SPMs) like resolvin D1 (RvD1) and pro-inflammatory factors, like leukotriene B4 (LTB4). A key cellular process of inflammation-resolution is efferocytosis. Aging is associated with defective inflammation-resolution and the accumulation of pro-inflammatory senescent cells (SCs). Therefore, understanding mechanism(s) that underpin this impairment is a critical gap. Here, using a model of hind limb ischemia-reperfusion (I/R) remote lung injury, we present evidence that aging is associated with heightened inflammation, impaired SPM:LT ratio, defective efferocytosis, and a decrease in MerTK levels in injured lungs. Treatment with RvD1 mitigated I/R lung injury in aging, promoted efferocytosis, and prevented the decrease of MerTK in injured lungs from old mice. Old MerTK cleavage-resistant mice (MerTKCR) exhibited less neutrophils or polymorpho nuclear cells infiltration and had improved efferocytosis compared with old WT controls. Mechanistically, macrophages that were treated with conditioned media (CM) from senescent cells had increased MerTK cleavage, impaired efferocytosis, and a defective RvD1:LTB4 ratio. Macrophages from MerTKCR mice were resistant to CM-induced efferocytosis defects and had an improved RvD1:LTB4 ratio. RvD1-stimulated macrophages prevented CM-induced MerTK cleavage and promoted efferocytosis. Together, these data suggest a new mechanism and a potential therapy to promote inflammation-resolution and efferocytosis in aging.


Assuntos
Envelhecimento , Ácidos Docosa-Hexaenoicos/farmacologia , Inflamação/tratamento farmacológico , c-Mer Tirosina Quinase/efeitos dos fármacos , Animais , Senescência Celular/efeitos dos fármacos , Inflamação/metabolismo , Macrófagos/efeitos dos fármacos , Macrófagos/metabolismo , Masculino , Camundongos Endogâmicos C57BL , Camundongos Transgênicos , Neutrófilos/metabolismo , Peritonite/tratamento farmacológico , Fagocitose/efeitos dos fármacos , Receptores Proteína Tirosina Quinases/metabolismo , Traumatismo por Reperfusão/tratamento farmacológico , Traumatismo por Reperfusão/metabolismo
8.
Public Health Nutr ; 24(18): 6103-6112, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34462039

RESUMO

OBJECTIVE: To quantify associations between four types of social support and measured adiposity among women and men. DESIGN: The cross-sectional sample from the Canadian Longitudinal Study on Aging (CLSA, 2012-2015). Height, weight and waist circumference (WC) were clinically measured, and perceived availability of informational, tangible, emotional and belonging social supports was self-reported. SETTING: Canada. PARTICIPANTS: 28 779 adults aged 45-85 years from the CLSA. RESULTS: All social support types were associated with WC and BMI among women but not among men. Women reporting the lowest informational support had significantly higher mean BMI (28·84 kg/m2 (95 % CI 28·63, 29·05)) and WC (90·81 cm (95 % CI 90·31, 91·30)) compared with women reporting maximum support (respectively, 28·09 kg/m2 (95 % CI 27·88, 28·30) and 88·92 cm (95 % CI 88·43, 89·4)). Women's abdominal obesity was associated with low levels of informational, emotional and belonging support, and women's general obesity with informational and emotional support. Notably, informational and emotional support were associated with both obesity outcomes independent of other supports among women. Only a low level of informational support was significantly independently associated with higher odds of obesity among men. CONCLUSIONS: Our study provides novel insights into gender-specific associations between different types of social support and adiposity. Prospective studies are needed to further investigate potential causality of these associations between the specific social supports and future weight status, especially among women.


Assuntos
Adiposidade , Obesidade , Adulto , Idoso , Idoso de 80 Anos ou mais , Envelhecimento , Índice de Massa Corporal , Canadá/epidemiologia , Estudos Transversais , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Obesidade/complicações , Obesidade/epidemiologia , Apoio Social , Circunferência da Cintura
9.
J Cell Sci ; 131(4)2018 02 20.
Artigo em Inglês | MEDLINE | ID: mdl-29361536

RESUMO

Epithelial progenitor cells are dependent upon a complex 3D niche to promote their proliferation and differentiation during development, which can be recapitulated in organoids. The specific requirements of the niche remain unclear for many cell types, including the proacinar cells that give rise to secretory acinar epithelial cells that produce saliva. Here, using ex vivo cultures of E16 primary mouse submandibular salivary gland epithelial cell clusters, we investigated the requirement for mesenchymal cells and other factors in producing salivary organoids in culture. Native E16 salivary mesenchyme, but not NIH3T3 cells or mesenchymal cell conditioned medium, supported robust protein expression of the progenitor marker Kit and the acinar/proacinar marker AQP5, with a requirement for FGF2 expression by the mesenchyme. Enriched salivary epithelial clusters that were grown in laminin-enriched basement membrane extract or laminin-111 together with exogenous FGF2, but not with EGF, underwent morphogenesis to form organoids that displayed robust expression of AQP5 in terminal buds. Knockdown of FGF2 in the mesenchyme or depletion of mesenchyme cells from the organoids significantly reduced AQP5 levels even in the presence of FGF2, suggesting a requirement for autocrine FGF2 signaling in the mesenchyme cells for AQP5 expression. We conclude that basement membrane proteins and mesenchyme cells function as niche factors in salivary organoids.


Assuntos
Aquaporina 5/genética , Fator 2 de Crescimento de Fibroblastos/genética , Laminina/genética , Glândulas Salivares/metabolismo , Células Acinares/metabolismo , Animais , Diferenciação Celular/genética , Proliferação de Células/genética , Fator de Crescimento Epidérmico/genética , Células Epiteliais/metabolismo , Regulação da Expressão Gênica no Desenvolvimento , Técnicas de Silenciamento de Genes , Mesoderma/crescimento & desenvolvimento , Mesoderma/metabolismo , Camundongos , Células NIH 3T3 , Organoides/crescimento & desenvolvimento , Organoides/metabolismo , Cultura Primária de Células , Saliva/metabolismo , Glândulas Salivares/crescimento & desenvolvimento , Células-Tronco/metabolismo , Glândula Submandibular/crescimento & desenvolvimento , Glândula Submandibular/metabolismo
10.
J Cell Physiol ; 234(2): 1289-1294, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30191988

RESUMO

Cervical cancer (CC) is a common malignancy in women and a major cause of cancer-related mortality globally. Some novel biomarkers may enable the early diagnosis and monitoring of CC. MicroRNAs (miRNAs) are small noncoding RNAs that control gene translation at a posttranscriptional level. Hence the deregulation of these molecules can cause many diseases. There appears to be an association between aberrant miRNA expression and CC, but the molecular mechanisms involved in the development of CC remain unknown. The upregulation of some circulating miRNAs, for example, miRNA-20a, miRNA-203, miRNA-21, miRNA-205, miRNA-218, and miR-485-5, as well as tissue-specific miRNAs, for example, miR-7, miR-10a, miR-17-5p, miR-135b, miR-149, and miR-203 have been found in patients with CC. There is also growing evidence for the importance of miRNAs in the development of drug resistance. This review therefore highlights recently published preclinical and clinical investigation performed on tissue specific and circulating miRNAs, as potential biomarkers for the detection of patients at early stages of CC, in the prediction of prognosis, and monitoring of their response to therapy.


Assuntos
Biomarcadores Tumorais/genética , MicroRNA Circulante/genética , Exossomos/genética , Neoplasias do Colo do Útero/genética , Animais , Antineoplásicos/uso terapêutico , Biomarcadores Tumorais/sangue , MicroRNA Circulante/sangue , Tomada de Decisão Clínica , Resistencia a Medicamentos Antineoplásicos/genética , Exossomos/metabolismo , Feminino , Humanos , Medicina de Precisão , Resultado do Tratamento , Neoplasias do Colo do Útero/sangue , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/tratamento farmacológico
11.
J Cell Biochem ; 120(8): 12870-12874, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-30868650

RESUMO

Cervical cancer is among the most common type of cancers in women and is associated with human papillomavirus (HPV) infection. Genital warts are also reported to be linked with HPV infection types 11 and 6. In turn, clinical characteristics and morphological features of warts may be useful in the prediction of prognosis and in making treatment decisions. Thus, we have investigated the association of high and low-risk HPVs genotype with genital wart risk, as well as pathological and cytological information in cases recruited from a population-based cohort study of 1380 patients. Patients infected with HPV genotype 6 or 11 had an increased risk of having warts, with OR of 2.34 (95% CI: 0.955-5.737, P = 0.06). Also, this association was enhanced in the presence of high plus low-risk HPV for having genital wart (OR: 2.814; 95%: 1.208-6.55, P = 0.017) and cases having high-risk HPV (OR: 2.329; 95% CI: 1.029-5.269, P = 0.042). Moreover, we observed patients with genital warts having CIN2/3, indicating the importance of informing the physician to the patient to prevent more severe lesions. Our data demonstrated that patients with both low/high-risk HPV types had an increased risk of developing genital warts and persistent infection with HPV was a necessary precursor for the increase in cervical lesions.


Assuntos
Condiloma Acuminado/epidemiologia , DNA Viral/genética , Papillomaviridae/genética , Infecções por Papillomavirus/epidemiologia , Adulto , Estudos de Coortes , Condiloma Acuminado/virologia , Feminino , Genótipo , Papillomavirus Humano 11/genética , Papillomavirus Humano 6/genética , Humanos , Irã (Geográfico)/epidemiologia , Pessoa de Meia-Idade , Infecções por Papillomavirus/virologia , Prevalência
12.
Int J Mol Sci ; 19(4)2018 Mar 29.
Artigo em Inglês | MEDLINE | ID: mdl-29596382

RESUMO

Engineering salivary glands is of interest due to the damaging effects of radiation therapy and the autoimmune disease Sjögren's syndrome on salivary gland function. One of the current problems in tissue engineering is that in vitro studies often fail to predict in vivo regeneration due to failure of cells to interact with scaffolds and of the single cell types that are typically used for these studies. Although poly (lactic co glycolic acid) (PLGA) nanofiber scaffolds have been used for in vitro growth of epithelial cells, PLGA has low compliance and cells do not penetrate the scaffolds. Using a core-shell electrospinning technique, we incorporated poly (glycerol sebacate) (PGS) into PLGA scaffolds to increase the compliance and decrease hydrophobicity. PGS/PLGA scaffolds promoted epithelial cell penetration into the scaffold and apical localization of tight junction proteins, which is necessary for epithelial cell function. Additionally, co-culture of the salivary epithelial cells with NIH3T3 mesenchymal cells on PGS/PLGA scaffolds facilitated epithelial tissue reorganization and apical localization of tight junction proteins significantly more than in the absence of the mesenchyme. These data demonstrate the applicability of PGS/PLGA nanofibers for epithelial cell self-organization and facilitation of co-culture cell interactions that promote tissue self-organization in vitro.


Assuntos
Decanoatos/química , Células Epiteliais , Glicerol/análogos & derivados , Ácido Láctico/química , Nanofibras/química , Ácido Poliglicólico/química , Polímeros/química , Glândulas Salivares , Alicerces Teciduais/química , Animais , Linhagem Celular Transformada , Técnicas de Cocultura , Células Epiteliais/citologia , Células Epiteliais/metabolismo , Glicerol/química , Camundongos , Células NIH 3T3 , Copolímero de Ácido Poliláctico e Ácido Poliglicólico , Glândulas Salivares/citologia , Glândulas Salivares/metabolismo , Junções Íntimas/metabolismo , Engenharia Tecidual
13.
Nutr Res Rev ; 29(2): 152-162, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27955720

RESUMO

The metabolic syndrome (MetS) is a key indicator of two main causes of death worldwide: CVD and diabetes. The present paper aimed to perform a review of the population-based research on the association of dietary patterns and the MetS in terms of methodology and findings. For the purpose of the present study, a scoping literature review was conducted using MEDLINE and EMBASE databases and hand searching in Google Scholar. Thirty-nine population-based studies were selected. Most of these studies used the factor analysis method and the a priori dietary approach, which had been initially extracted via a posteriori methods such as using the Mediterranean dietary pattern. The main finding was that following the Mediterranean or similar 'healthy' pattern reduced risk of the MetS, while following a 'Western' pattern increased risk of the MetS. The methodological approach in determining the dietary pattern of a population, whether a priori or a posteriori, should be chosen based on the purpose of the research. Overall, evidence suggests a diet based on the components of the Mediterranean diet and the avoidance of the 'Western' diet can aid in preventing the MetS.


Assuntos
Dieta Mediterrânea , Síndrome Metabólica , Humanos , Fatores de Risco
14.
Physiol Rep ; 12(11): e16053, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38806440

RESUMO

Inflammation and oxidative stress upset memory. We explored influence of sodium nitroprusside (SNP) on memory deficits resulted from lipopolysaccharide (LPS).Groups include control, LPS, LPS + SNP 1 mg/kg, LPS + SNP 2 mg/kg, and LPS + SNP 3 mg/kg. Morris water maze and passive avoidance tests and biochemical measurements were carried out.In Morris water maze, LPS prolonged time and distance for finding the platform. In probe trial, it diminished time spent and traveled distance in the target zone. Injection of 2 and 3 mg/kg of SNP overturned the effect of LPS. In passive avoidance task, LPS postponed entrance into darkroom and reduced time spent in light room and incremented time spent in darkroom in 3, 24, and 72 h after electrical shock. All three doses of SNP restored the effects of LPS. Biochemical experiments confirmed that LPS elevated interleukin-6 and malondialdehyde concentration and declined total thiol content and superoxide dismutase and catalase activity in the hippocampus and cortex tissues. SNP particularly at a 3 mg/kg dose ameliorated LPS effects on these parameters.SNP attenuated memory disabilities resulting from LPS through modifying inflammation and boosting antioxidant defense.


Assuntos
Lipopolissacarídeos , Transtornos da Memória , Nitroprussiato , Estresse Oxidativo , Ratos Wistar , Animais , Lipopolissacarídeos/toxicidade , Nitroprussiato/farmacologia , Masculino , Estresse Oxidativo/efeitos dos fármacos , Ratos , Transtornos da Memória/metabolismo , Transtornos da Memória/induzido quimicamente , Transtornos da Memória/tratamento farmacológico , Inflamação/metabolismo , Inflamação/induzido quimicamente , Inflamação/tratamento farmacológico , Aprendizagem da Esquiva/efeitos dos fármacos , Aprendizagem em Labirinto/efeitos dos fármacos , Hipocampo/metabolismo , Hipocampo/efeitos dos fármacos
15.
Sports Med ; 54(2): 473-484, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37776465

RESUMO

BACKGROUND: Assessing certainty of evidence is a key element of any systematic review. The aim of this meta-epidemiology study was to understand the frequency and ways with which certainty of evidence is assessed in contemporary systematic reviews published in high-impact sports science journals. METHODS: We searched PubMed and relevant journal web sites from 1 August 2016 to 11 October 2022 for systematic reviews published in the top-ten highest-impact journals within the 2020 Journal Citation Report for the Sports Sciences category. Pairs of independent reviewers screened items using a priori established criteria. RESULTS: Of 1250 eligible documents, 258 (20.6%) assessed the certainty of evidence, defined as using two or more distinct domains to provide an overall rating of the trustworthiness of findings across studies. Nine methods were cited for assessing certainty, with the most common being the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach (61.6%). The proportion of systematic reviews assessing certainty of evidence appeared to increase over the 6-year timeframe analyzed. Across all reviews analyzed, a large majority addressed the domains of risk of bias, imprecision, and inconsistency of the results. Other certainty domains including indirectness/applicability were less commonly assessed. DISCUSSION: Only one in five recent contemporary systematic reviews in the field of exercise and sports science assessed certainty of evidence. Organizational and institutional education on methods for assessing evidence may help further increase uptake of these methods and improve both the quality and clinical impact of systematic reviews in the field.


Assuntos
Publicações Periódicas como Assunto , Esportes , Humanos , Revisões Sistemáticas como Assunto , Viés , Estudos Epidemiológicos
16.
Int J Nurs Knowl ; 34(3): 179-184, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-36029159

RESUMO

BACKGROUND: Quality of care is one of the most critical issues in nursing care today. Moreover, all health care employees are responsible for providing support and high-quality, safe care. However, nurses caring for COVID-19 patients face problems such as unfamiliar work environments, exposure to the disease, lack of experience in their new positions, and close public and media attention. This study aimed to investigate missed nursing care and the reasons for missed nursing care during the coronavirus disease 2019 (COVID-19) pandemic in Iran. METHODS: This cross-sectional study included 135 nurses working in COVID-19 units. Data were collected using the MISSCARE Survey. The significance level for the statistical tests was set at p < 0.05. RESULTS: Most of the participants were women and had a bachelor's degree in nursing. There was a lack of supportive and necessary care more than any other form of care. According to nurses, the most common reasons for missed care were urgent patient situations, inadequate staff, and an unexpected rise in patient volume and/or patient acuity on the unit. CONCLUSION: Generally, the results showed that being positioned in a new situation and unfamiliarity with the disease had a significant impact-among nurses-on the amount of care provided. Managers can use this information to solve existing missed-nursing-care problems and contribute to improving the quality of care. These results can be helpful in controlling missed nursing care and finding a more optimal solution for this problem; thus, we can improve the quality of care delivery and increase the satisfaction of nurses and patients. Additionally, an understanding of the kind of missing nursing care during a pandemic can positively enhance the management of similar situations in the future.


Assuntos
COVID-19 , Cuidados de Enfermagem , Recursos Humanos de Enfermagem Hospitalar , Humanos , Feminino , Masculino , Pandemias , Estudos Transversais , Irã (Geográfico)/epidemiologia , COVID-19/epidemiologia
17.
Sci Rep ; 13(1): 663, 2023 01 12.
Artigo em Inglês | MEDLINE | ID: mdl-36635303

RESUMO

Type 2 Diabetes Mellitus (T2DM) is a significant public health problem globally. The diagnosis and management of diabetes are critical to reduce the diabetes complications including cardiovascular disease and cancer. This study was designed to assess the potential association between T2DM and routinely measured hematological parameters. This study was a subsample of 9000 adults aged 35-65 years recruited as part of Mashhad stroke and heart atherosclerotic disorder (MASHAD) cohort study. Machine learning techniques including logistic regression (LR), decision tree (DT) and bootstrap forest (BF) algorithms were applied to analyze data. All data analyses were performed using SPSS version 22 and SAS JMP Pro version 13 at a significant level of 0.05. Based on the performance indices, the BF model gave high accuracy, precision, specificity, and AUC. Previous studies suggested the positive relationship of triglyceride-glucose (TyG) index with T2DM, so we considered the association of TyG index with hematological factors. We found this association was aligned with their results regarding T2DM, except MCHC. The most effective factors in the BF model were age and WBC (white blood cell). The BF model represented a better performance to predict T2DM. Our model provides valuable information to predict T2DM like age and WBC.


Assuntos
Diabetes Mellitus Tipo 2 , Cardiopatias , Adulto , Humanos , Estudos de Coortes , Glucose , Algoritmos , Aprendizado de Máquina , Cardiopatias/complicações , Triglicerídeos , Fatores de Risco , Glicemia/análise
18.
Curr Drug Targets ; 24(4): 300-319, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36642873

RESUMO

Non-alcoholic fatty liver disease (NAFLD) is a common metabolic disorder associated with obesity, diabetes mellitus, dyslipidemia, and cardiovascular disease. A "multiple hit" model has been a widely accepted explanation for the disease's complicated pathogenesis. Despite advances in our knowledge of the processes underlying NAFLD, no conventional pharmaceutical therapy exists. The only currently approved option is to make lifestyle modifications, such as dietary and physical activity changes. The use of medicinal plants in the treatment of NAFLD has recently gained interest. Thus, we review the current knowledge about these agents based on clinical and preclinical studies. Moreover, the association between NAFLD and colorectal cancer (CRC), one of the most common and lethal malignancies, has recently emerged as a new study area. We overview the shared dysregulated pathways and the potential therapeutic effect of herbal medicines for CRC prevention in patients with NAFLD.


Assuntos
Hepatopatia Gordurosa não Alcoólica , Plantas Medicinais , Humanos , Hepatopatia Gordurosa não Alcoólica/tratamento farmacológico , Medicina Herbária , Preparações Farmacêuticas , Extratos Vegetais/uso terapêutico
19.
Acta Cardiol ; 78(9): 1033-1044, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37694924

RESUMO

OBJECTIVE: To investigate the association between cardiovascular diseases (CVDs) and haematologic factors in a cohort of Iranian adults. METHOD: For a total population of 9,704 aged 35 to 65, a prospective study was designed. Haematologic factors and demographic characteristics (such as gender, age, and smoking status) were completed for all participants. The association between haematologic factors and CVDs was assessed through logistic regression (LR) analysis, decision tree (DT), and bootstrap forest (BF). RESULTS: Almost all of the included factors were significantly associated with CVD (p<.001). Among the included factors, were: age, white blood cell (WBC), and platelet distribution width (PDW) had the strongest correlation with the development of CVD. For unit OR interpretation, WBC has been represented as the most remarkable risk factor for CVD (OR: 1.22 (CI 95% (1.18, 1.27))). Also, age is associated with an increase in the odds of CVD + occurrence (OR: 1.12 (CI 95% (1.11, 1.13))). Moreover, males are times more likely to develop CVD than females (OR: 1.39 (CI 95% (1.22, 1.58))). In DT model, age is the best classifier factor in CVD development, followed by WBC and PDW. Furthermore, based on the BF algorithm, the most crucial factors correlated with CVD are age, WBC, PDW, sex, and smoking status. CONCLUSION: The obtained result from LR, DT, and BF models confirmed that age, WBC, and PDW are the most crucial factors for the development of CVD.

20.
High Blood Press Cardiovasc Prev ; 30(3): 243-253, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37204657

RESUMO

INTRODUCTION: Many studies have been published to assess the best anthropometric measurements associated with cardiovascular diseases (CVDs), but controversies still exist. AIM: Investigating the association between CVDs and anthropometric measurements among Iranian adults. METHODS: For a total population of 9354 aged 35 to 65, a prospective study was designed. Anthropometric measurements including ABSI (A Body Shape Index), Body Adiposity Index (BAI), Body Mass Index (BMI), Waist to Height Ratio (WHtR), Body Round Index (BRI), HC (Hip Circumference), Demispan, Mid-arm circumference (MAC), Waist-to-hip (WH) and Waist Circumference (WC) were completed. The association between these parameters and CVDs were assessed through logistic regression (LR) and decision tree (DT) models. RESULTS: During the 6-year follow-up, 4596 individuals (49%) developed CVDs. According to the LR, age, BAI, BMI, Demispan, and BRI, in male and age, WC, BMI, and BAI in female had a significant association with CVDs (p-value < 0.03). Age and BRI for male and age and BMI for female represent the most appropriate estimates for CVDs (OR: 1.07, (95% CI: 1.06, 1.08), 1.36 (1.22, 1.51), 1.14 (1.13, 1.15), and 1.05 (1.02, 1.07), respectively). In the DT for male, those with BRI ≥ 3.87, age ≥ 46 years, and BMI ≥ 35.97 had the highest risk to develop CVDs (90%). Also, in the DT for female, those with age ≥ 54 years and WC ≥ 84 had the highest risk to develop CVDs (71%). CONCLUSION: BRI and age in male and age and BMI in female had the greatest association with CVDs. Also, BRI and BMI was the strongest indices for this prediction.


Assuntos
Doenças Cardiovasculares , Adulto , Humanos , Doenças Cardiovasculares/diagnóstico , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/complicações , Estudos de Coortes , Fatores de Risco , Estudos Prospectivos , Irã (Geográfico)/epidemiologia , Obesidade/epidemiologia , Índice de Massa Corporal , Circunferência da Cintura , Razão Cintura-Estatura
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