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1.
Phytother Res ; 38(5): 2234-2248, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38410857

RESUMO

Considering the main component of cardiovascular disease and due to the high prevalence of hypertension, controlling blood pressure is required in individuals with various health conditions. Randomized clinical trials (RCTs) which studied the effects of pomegranate consumption on blood pressure have shown inconsistent findings. As a result, we intended to assess the effects of pomegranate consumption on systolic (SBP) and diastolic (DBP) blood pressure in adults. Systematic literature searches up to January 2024 were carried out using electronic databases, including PubMed, Web of Science, and Scopus, to identify eligible RCTs assessing the effects of pomegranate on blood pressure as an outcome. All the individuals who took part in our research were adults who consumed pomegranate in different forms as part of the study intervention. Heterogeneity tests of the selected trials were performed using the I2 statistic. Random effects models were assessed based on the heterogeneity tests, and pooled data were determined as the weighted mean difference (WMD) with a 95% confidence interval (CI). Of 2315 records, 22 eligible RCTs were included in the current study. Our meta-analysis of the pooled findings showed that pomegranate consumption significantly reduced SBP (WMD: -7.87 mmHg; 95% CI: -10.34 to -5.39; p < 0.001) and DBP (WMD: -3.23 mmHg; 95% CI: -5.37 to -1.09; p = 0.003). Individuals with baseline SBP > 130 mmHg had a significantly greater reduction in SBP compared to individuals with baseline SBP < 130 mmHg. Also, there was a high level of heterogeneity among studies (SBP: I2 = 90.0% and DBP: I2 = 91.8%). Overall, the results demonstrated that pomegranate consumption lowered SBP and DBP in adults. Although our results suggest that pomegranate juice may be effective in reducing blood pressure in the pooled data, further high-quality studies are needed to demonstrate the clinical efficacy of pomegranate consumption.


Assuntos
Pressão Sanguínea , Hipertensão , Punica granatum , Humanos , Pressão Sanguínea/efeitos dos fármacos , Punica granatum/química , Adulto , Ensaios Clínicos Controlados Aleatórios como Assunto
2.
Inflammopharmacology ; 31(5): 2283-2301, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37507609

RESUMO

BACKGROUND: Several studies have shown the effects of pomegranate on oxidative stress and inflammation biomarkers, while some studies showed no effects of pomegranate on these biomarkers. Therefore, we aimed to evaluate the effects of pomegranate consumption on C-reactive protein (CRP), interlukin-6 (IL-6), tumor necrosis factor α (TNF-α), total antioxidant capacity (TAC), and malondialdehyde (MDA) in adults. METHODS: A systematic literature search was performed using databases, including PubMed, Web of Science, and Scopus, up to May 2023 to identify eligible randomized controlled trials (RCTs). Heterogeneity tests of the included trials were performed using the I2 statistic. Random effects models were assessed based on the heterogeneity tests, and pooled data were determined as the weighted mean difference with a 95% confidence interval. RESULTS: Of 3811 records, 33 eligible RCTs were included in the current study. Our meta-analysis of the pooled findings showed that pomegranate consumption significantly reduced CRP (WMD: -0.50 mg/l; 95% CI -0.79 to -0.20; p = 0.001), IL-6 (WMD: -1.24 ng/L 95% CI -1.95 to -0.54; p = 0.001), TNF-α (WMD: -1.96 pg/ml 95%CI -2.75 to -1.18; p < 0.001), and MDA (WMD: -0.34 nmol/ml 95%CI -0.42 to -0.25; p < 0.001). Pooled analysis of 13 trials revealed that pomegranate consumption led to a significant increase in TAC (WMD: 0.26 mmol/L 95%CI 0.03 to 0.49; p = 0.025). CONCLUSION: Overall, the results demonstrated that pomegranate consumption has beneficial effects on oxidative stress and inflammatory biomarkers in adults. Therefore, pomegranate can be consumed as an effective dietary approach to attenuate oxidative stress and inflammation in patients with cardiovascular diseases. PROSPERO REGISTRATION CODE: CRD42023406684.


Assuntos
Punica granatum , Adulto , Humanos , Punica granatum/metabolismo , Fator de Necrose Tumoral alfa/metabolismo , Interleucina-6/metabolismo , Biomarcadores/metabolismo , Proteína C-Reativa/metabolismo , Inflamação/tratamento farmacológico , Estresse Oxidativo , Antioxidantes/farmacologia , Antioxidantes/metabolismo , Suplementos Nutricionais
3.
Int Wound J ; 20(8): 3157-3163, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37057654

RESUMO

Prolonged use of personal protective equipment can cause pressure injuries on the skin. The current study was conducted with the aim of investigating the effect of ChitoHeal gel on the nasal site on the prevention of N 95 masks that caused pressure injuries in nurses working in intensive care units. This is a randomised controlled clinical trial that was conducted in 2022. The study sample consisted of 92 nurses working in the intensive care units. A randomised block method was used to allocate the nurses to two equal groups of intervention and control. However, in the intervention group, ChitoHeal gel was applied on nurses' nose bridge. To perform this, the researcher referred to the department during the morning and evening shifts and applied the gel on nurses' nose bridge at the beginning of each shift. Then, the N95 mask was installed on the face by the nurse. Before and at the end of each work shift, the skin in both groups was assessed for any signs of pressure injuries. No significant differences were observed between the two intervention and control groups in terms of demographic variables. The frequency distribution of mask-caused pressure injuries on nurses' nose bridge in the two groups was analysed using the Chi-square test (Fisher's exact test). The results showed that after the intervention, it was 0 in the intervention group. However, 4 nurses (8.6%) in the control group developed pressure injuries, and this difference between the two groups was statistically significant (P > .05). The result of the current study showed that the use of ChitoHeal gel is effective in preventing N95 mask-related pressure injuries. Considering the cheapness and rational global availability of this gel, it seems that its use is an effective strategy in order to prevent N95 mask-related pressure injuries. Given the lack of studies in this regard, similar studies are strongly recommended to be conducted.


Assuntos
Respiradores N95 , Úlcera por Pressão , Humanos , Úlcera por Pressão/etiologia , Úlcera por Pressão/prevenção & controle , Equipamento de Proteção Individual , Unidades de Terapia Intensiva , Pele , Máscaras/efeitos adversos
4.
Cancer Cell Int ; 21(1): 66, 2021 Jan 21.
Artigo em Inglês | MEDLINE | ID: mdl-33478512

RESUMO

Gastric cancer (GC) is one of the most common cancers with high malignancy. In spite of the great development in diagnostic tools and application of anti-tumor drugs, we have not witnessed a significant increase in the survival time of patients with GC. Multiple studies have revealed that Wnt, Nrf2, MAPK, and PI3K/Akt signaling pathways are involved in GC invasion. Besides, long non-coding RNAs and microRNAs function as upstream mediators in GC malignancy. GC cells have acquired resistance to currently applied anti-tumor drugs. Besides, combination therapy is associated with higher anti-tumor activity. Resveratrol (Res) is a non-flavonoid polyphenol with high anti-tumor activity used in treatment of various cancers. A number of studies have demonstrated the potential of Res in regulation of molecular pathways involved in cancer malignancy. At the present review, we show that Res targets a variety of signaling pathways to induce apoptotic cell death and simultaneously, to inhibit the migration and metastasis of GC cells.

5.
Blood Purif ; 50(2): 257-260, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32594085

RESUMO

Hemoperfusion (HP) was helpful to prevent the development and progression of acute respiratory distress syndrome (ARDS), acute kidney injury (AKI), liver failure, and septic shock by removing cytokines and other inflammatory mediators and ultimately preventing progression toward multiple organ failure. A 54-year-old man diagnosed with COVID-19 was hospitalized in the intensive care unit. The patient's O2 saturation was 80% using an oxygen mask, which was gradually declining. After 4 sessions of HP/continuous renal replacement therapies (CRRT), O2 saturation reached to 95%, and the patient was transferred to the general ward. Performing HP/CRRT at the early stages of ARDS can obviate the need for intubating patients with COVID-19. Punctual and early use of HP and CRRT in the treatment of ARDS in patients with COVID-19 prevented the progression of ARDS and patient intubation, reduced respiratory distress and the patient's dependence on oxygen, prevented other complications such as AKI and septic shock in the patient, and reduced mortality and hospital length of stay.


Assuntos
COVID-19/terapia , Terapia de Substituição Renal Contínua , Síndrome da Liberação de Citocina/terapia , Citocinas/sangue , Hemoperfusão , Intubação Intratraqueal , Síndrome do Desconforto Respiratório/terapia , SARS-CoV-2 , Injúria Renal Aguda/etiologia , Injúria Renal Aguda/prevenção & controle , Antibacterianos/uso terapêutico , Anticoagulantes/uso terapêutico , Antivirais/uso terapêutico , COVID-19/sangue , COVID-19/complicações , Cuidados Críticos/métodos , Síndrome da Liberação de Citocina/sangue , Síndrome da Liberação de Citocina/etiologia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/tratamento farmacológico , Humanos , Hipertensão/complicações , Hipertensão/tratamento farmacológico , Inflamação/sangue , Inflamação/etiologia , Tempo de Internação/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Oxigênio/sangue , Síndrome do Desconforto Respiratório/sangue , Síndrome do Desconforto Respiratório/etiologia , Síndrome do Desconforto Respiratório/prevenção & controle , Choque Séptico/etiologia , Choque Séptico/prevenção & controle , Tratamento Farmacológico da COVID-19
6.
Phytother Res ; 34(4): 721-728, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31972874

RESUMO

Effective management and treatment of cancer depend on developing novel antitumor drugs with the capability of targeting various molecular pathways. Identification and subsequent targeting of these pathways are of importance in cancer therapy. MicroRNAs (miRNAs) are small noncoding RNA molecules responsible for post-transcriptional regulation of genes. Notably, miRNAs participate in a number of biological processes such as proliferation, apoptosis, differentiation, and cell cycle regulation. So, any impairment in the expression and function of miRNAs is associated with development of disorders, particularly cancer. Naturally occurring nutraceutical compounds have attracted much attention due to their great antitumor activity. Among them, sulforaphane isolated from Brassica oleracea (broccoli) is of interest due to its therapeutic and biological activities such as antidiabetic, antioxidant, anti-inflammatory, hepatoprotection, and cardiprotection. Sulforaphane has demonstrated great antitumor activity and is able to significantly inhibit proliferation, viability, migration, malignancy, and epithelial-to-mesenchymal transition of cancer cells. These antitumor effects have widely been investigated, and it appears that there is a need for a precise review to demonstrate the molecular pathway that sulforaphane follows to exert its antitumor activity. At the present review, we focus on the modulatory impact of sulforaphane on miRNAs and exhibit that how various miRNAs in different cancers are regulated by sulforaphane.


Assuntos
Antineoplásicos Fitogênicos/farmacologia , Isotiocianatos/farmacologia , MicroRNAs/fisiologia , Neoplasias/tratamento farmacológico , Neoplasias/genética , Animais , Apoptose/efeitos dos fármacos , Apoptose/genética , Brassica/química , Transição Epitelial-Mesenquimal/efeitos dos fármacos , Transição Epitelial-Mesenquimal/genética , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Humanos , Isotiocianatos/isolamento & purificação , MicroRNAs/metabolismo , Neoplasias/patologia , Extratos Vegetais/farmacologia , Extratos Vegetais/uso terapêutico , Sulfóxidos
7.
Phytother Res ; 34(8): 1745-1760, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32157749

RESUMO

Curcumin is a naturally occurring nutraceutical compound with a number of therapeutic and biological activities such as antioxidant, anti-inflammatory, anti-diabetic, antitumor, and cardioprotective. This plant-derived chemical has demonstrated great potential in targeting various signaling pathways to exert its protective effects. Signal transducers and activator of transcription (STAT) is one of the molecular pathways involved in a variety of biological processes such as cell proliferation and cell apoptosis. Accumulating data demonstrates that the STAT pathway is an important target in treatment of a number of disorders, particularly cancer. Curcumin is capable of affecting STAT signaling pathway in induction of its therapeutic impacts. Curcumin is able to enhance the level of anti-inflammatory cytokines and improve inflammatory disorders such as colitis by targeting STAT signaling pathway. Furthermore, studies show that inhibition of JAK/STAT pathway by curcumin is involved in reduced migration and invasion of cancer cells. Curcumin normalizes the expression of JAK/STAT signaling pathway to exert anti-diabetic, renoprotective, and neuroprotective impacts. At the present review, we provide a comprehensive discussion about the effect of curcumin on JAK/STAT signaling pathway to direct further studies in this field.


Assuntos
Curcumina/uso terapêutico , Janus Quinases/metabolismo , Fatores de Transcrição STAT/metabolismo , Transdução de Sinais/efeitos dos fármacos , Produtos Biológicos , Curcumina/farmacologia , Humanos
8.
Int Wound J ; 17(2): 436-442, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31854116

RESUMO

Few studies, especially among developing countries such as Iran, have been conducted on the incidence and risk factors for medical device-related pressure ulcers (MDRPUs). Given the importance of this issue and the lack of previous studies, the present study aimed to investigate the incidence and risk factors for MDRPUs in Iran. The present descriptive-analytical study was conducted at three hospitals in Qazvin, Iran, from June 1, 2019, to September 1, 2019. Data collection took approximately 3 months from July to September 2019. Sampling was carried out through a convenience sampling method, and the samples consisted of 404 patients. For data collection, a checklist for demographic variables, a checklist for patient-connected medical devices, Braden Scale, Glasgow Coma Scale, National Pressure Ulcer Advisory Panel Pressure Grading Scale, and Nutrition Risk Screening 2002 were used. Of the 404 patients studied, 20.54% (n = 83) developed some degree of MDRPUs. From those, 61 (70.11%) were in stage I, 17 (19.5%) were in stage II, and 9 (10.34%) were in stage III. Among the nine medical devices that caused pressure ulcers, the most commonly reported ones were nasal oxygen tubes (31 cases), oxygen face masks (23 cases), and endotracheal tubes (17 cases). The mean score of Braden Scale (P = .004), the mean score of NRS 2002 (P = .037), older age (P = .007), male gender (P = .002), the average length of stay in hospitals (P = .001), and having pressure ulcers in body (P = .025) significantly increased the possibility of occurring MDRPUs. In the present study, the incidence of MDRPUs was high. Taking the necessary measures into consideration in order to prevent the MDRPUs is essential in Iranian hospitals. Further studies in this regard are strongly recommended.


Assuntos
Equipamentos e Provisões/efeitos adversos , Úlcera por Pressão/epidemiologia , Medição de Risco/métodos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Feminino , Hospitais , Humanos , Incidência , Irã (Geográfico)/epidemiologia , Masculino , Pessoa de Meia-Idade , Úlcera por Pressão/etiologia , Úlcera por Pressão/prevenção & controle , Estudos Retrospectivos , Fatores de Risco , Adulto Jovem
9.
Br J Nurs ; 29(22): S27-S30, 2020 Dec 10.
Artigo em Inglês | MEDLINE | ID: mdl-33325291

RESUMO

AIM: The family plays a key role in supporting and caring for patients who have a gastrointestinal stoma because of cancer. This study investigated the quality of life of family members caring for such patients. METHODS: A descriptive study was conducted in 2020 in Iran. The study sample consisted of 250 family members caring for cancer patients with an intestinal stoma. The Caregiver Quality of Life Index-Cancer scale was used to measure quality of life. This scale has 35 questions, which are categorised into four subscales: mental/emotional burden; lifestyle disruption; positive adaptation; and financial concerns. The highest possible total score is 140 (35 in each subscale), and a high score indicates a poor quality of life. RESULTS: A total of 250 carers took part in the study. Of these, 143 (57.2%) were men and the average age was 35.1 years. Mean scores of mental/emotional burden, lifestyle disruption, positive adaptation, and financial concerns were 28.4±41, 17.3±3.2, 19.8±28, and 8.6±1.2 respectively. No significant relationship was found between participants' quality of life and demographic variables. CONCLUSION: Carers' quality of life is relatively poor. Carers' quality of life need to be improved and support programmes, devised and delivered by nurses, could have a role in this.


Assuntos
Cuidadores , Estomas Cirúrgicos , Adulto , Estudos Transversais , Família , Humanos , Irã (Geográfico) , Masculino , Qualidade de Vida
10.
Nurs Ethics ; 26(2): 496-503, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28748741

RESUMO

BACKGROUND:: Euthanasia is among the most common and controversial end-of-life care issues. Examining the attitudes of nursing students to this issue is important because they may well encounter these issues during the course of their clinical placements. RESEARCH AIMS:: This study aims to examine the attitudes of a sample of Iranian nursing students towards euthanasia. RESEARCH DESIGN:: This is a descriptive cross-sectional study. PARTICIPANTS AND RESEARCH CONTEXT:: Using convenience sampling, 382 Muslim nursing students were enrolled in this study. METHODS:: Data were collected using a demographic variables checklist and a self-administered questionnaire that included a definition of euthanasia and 11 closed questions that sought to record participants' level of agreement with euthanasia based on a Likert scale. ETHICAL CONSIDERATION:: Consent for participation was implicit, indicated by the participants having returned the completed questionnaires. Participants were assured that their data would remain anonymous, be kept confidential and be stored safely. FINDINGS:: Of the 382 participants, 61.5% were female, and the remainder were male. The mean age was 62.6 ± 14.1 years (range: 32-91 years). In total, 34.2%, 41.6% and 24% of students reported a negative, neutral and positive attitude to euthanasia, respectively. Most students with clinical experience, and 38.5% of students with no clinical experience, indicated their agreement with active euthanasia. DISCUSSION:: There are a number of misconceptions among Iranian Muslim nursing students regarding the definition of euthanasia. Nonetheless, most students exhibit positive attitudes to euthanasia consistent with their clinical experiences. CONCLUSION:: It is recommended to explore the factors that induced nursing students' tendency to euthanasia.


Assuntos
Atitude do Pessoal de Saúde , Eutanásia/ética , Estudantes de Enfermagem/psicologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Eutanásia/psicologia , Feminino , Humanos , Irã (Geográfico) , Islamismo/psicologia , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários
11.
J Relig Health ; 58(4): 1453-1461, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28932973

RESUMO

The purpose of this study was to assess the effect of spiritual care on hopelessness and depression among suicide attempts. This semi-experimental study that 60 suicide attempts and these samples were divided in to two cases and control groups. For case group, service package of spiritual care was designed and conducted during their visits to psychiatrists' offices. Findings showed that there was a significant difference after performing spiritual care in depression in both groups (X2 = 22, P = 0.002) and their hopelessness (X2 = 20, P = 0.001). The use of spiritual intervention is suggested in order to implement holistic nursing care during treatment should be considered as a matter of principle.


Assuntos
Depressão/terapia , Transtornos do Humor/terapia , Terapias Espirituais/métodos , Espiritualidade , Tentativa de Suicídio/psicologia , Adulto , Estudos Transversais , Depressão/epidemiologia , Depressão/psicologia , Feminino , Humanos , Masculino , Transtornos do Humor/epidemiologia , Transtornos do Humor/psicologia , Escalas de Graduação Psiquiátrica , Autoimagem , Tentativa de Suicídio/estatística & dados numéricos , Adulto Jovem
12.
J Physiol ; 596(8): 1385-1395, 2018 04 15.
Artigo em Inglês | MEDLINE | ID: mdl-29446830

RESUMO

KEY POINTS: The recent development of exogenous ketone supplements allows direct testing of the metabolic effects of elevated blood ketones without the confounding influence of widespread changes experienced with ketogenic diets or prolonged fasting. In the present study, we determined the effect of (R)-3-hydroxybutyl (R)-3-hydroxybutyrate ketone monoester on the glycaemic response and insulin sensitivity index during a 2 h oral glucose tolerance test (OGTT) in humans. The results obtained show that consuming a ketone monoester supplement 30 min prior to an OGTT reduced the glycaemic response and markers of insulin sensitivity without affecting insulin secretion. The findings of the present study provides evidence that ketone supplements could have therapeutic potential for future application as a glucose-lowering nutritional supplement. ABSTRACT: The main objectives of the present study were: (i) to determine whether acute ingestion of ketone monoester (Kme ); (R)-3-hydroxybutyl (R)-3-hydroxybutyrate impacts plasma glucose levels during a standardized oral glucose tolerance test (OGTT) and (ii) to compare changes in insulin concentrations and estimates of insulin sensitivity after acute Kme supplementation. Twenty healthy participants (n = 10 males/females) aged between 18 and 35 years took part in a randomized cross-over study. After an overnight fast, participants consumed a Kme supplement (ΔG®; TΔS Ltd, UK, Oxford, UK; 0.45 ml kg-1 body weight) or placebo (water) 30 min before completing a 75 g OGTT. Blood samples were collected every 15-30 min over 2.5 h. The participants and study personnel performing the laboratory analyses were blinded to the study condition. Kme acutely raised blood d-beta-hydroxybutyrate (ß-OHB) to 3.2 ± 0.6 mm within 30 min with levels remaining elevated throughout the entire OGTT. Compared to placebo, Kme significantly decreased the glucose area under the curve (AUC; -17%, P = 0.001), non-esterified fatty acid AUC (-44%, P < 0.001) and C-peptide incremental AUC (P = 0.005), at the same time as improving oral glucose insulin sensitivity index by ∼11% (P = 0.001). In conclusion, a Kme supplement that acutely increased ß-OHB levels up to ∼3 mm attenuated the glycaemic response to an OGTT in healthy humans. The reduction in glycaemic response did not appear to be driven by an increase in insulin secretion, although it was accompanied by improved markers of insulin sensitivity. These results suggest that ketone monoester supplements could have therapeutic potential in the management and prevention of metabolic diseases.


Assuntos
Hidroxibutiratos/uso terapêutico , Hiperglicemia/prevenção & controle , Hipoglicemiantes/uso terapêutico , Resistência à Insulina , Adolescente , Adulto , Glicemia/metabolismo , Suplementos Nutricionais , Feminino , Humanos , Hidroxibutiratos/administração & dosagem , Hipoglicemiantes/administração & dosagem , Masculino
13.
Br J Nurs ; 27(21): 1246-1249, 2018 Nov 22.
Artigo em Inglês | MEDLINE | ID: mdl-30457374

RESUMO

AIM:: the present study aimed to assess the relationship between attitude to the presence of family members during cardiopulmonary resuscitation and confidence of acute care nurses in performing cardiopulmonary resuscitation in the presence of family. METHODS:: this descriptive-analytical study was conducted on nurses working in acute care units (intensive care unit, coronary care unit, and emergency department) in Iran in 2017. A total of 150 nurses entered the study by convenience sampling. Data were collected on nurses' attitude towards the presence of family scale and nurses' self-confidence in presence of family scale. RESULTS:: of the 150 participants, 48 (32%) were men and 102 (68%) were women. Total mean score of attitude was 67±10.4 (obtained scores by nurses ranged from 32 to 100). Total mean score of self-confidence was 53.86 ±11.7 (obtained scores by nurses ranged from 23 to 81). Pearson correlation test showed a significant negative relationship between nurses' attitude toward presence of family members during cardiopulmonary resuscitation and their self-confidence (rr=-0.45, p=0.001). CONCLUSION:: the present study showed that nurses with a higher self-confidence have a more positive attitude toward presence of family members during cardiopulmonary resuscitation. Given the importance of the subject, it should be considered by nursing managers and planners.


Assuntos
Atitude do Pessoal de Saúde , Reanimação Cardiopulmonar/enfermagem , Enfermagem de Cuidados Críticos , Família , Enfermeiras e Enfermeiros/psicologia , Autoimagem , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
14.
Bioorg Med Chem Lett ; 27(16): 3669-3673, 2017 08 15.
Artigo em Inglês | MEDLINE | ID: mdl-28716495

RESUMO

This study aims at investigating the cytotoxicity and some of the modes of action of 3,5-bis(3-dimethylamino-4-hydroxybenzylidene)-4-piperidone trihydrochloride 3 and two related compounds 2 (which lacks the dimethylaminomethyl groups) and 4 (which has an additional dimethylaminoethyl substituent in both aryl rings) in order to ascertain the contribution of dimethylaminoethyl substituent to bioactivity. The bioactivities of 2-4 were compared with curcumin 5. Both 2 and 3 displayed submicromolar GI50 values towards HCT-116 cells and were significantly more potent than 4, 5 and 5-fluorouracil (5-FU). All of the compounds displayed greater toxicity towards HCT-116 cells than human CRL-1790 non-malignant colon cells. In HCT-116 cells, the compounds 2, 3 and 5 increased the ratio of oxidised to reduced glutathione and destabilized the mitochondrial membrane potential. Both 2 and 5 produced an increase in mitochondrial superoxide and a burst in intracellular reactive oxygen species in HCT 116 cells. In addition, 2 and 4 stimulated respiration in rat liver mitochondria while 2 and 5 induced mitochondrial swelling. The results suggest that 2 and 5 cause oxidation or cross-linking of the thiols which control the mitochondrial permeability transition.


Assuntos
Apoptose/efeitos dos fármacos , Glutationa/química , Mitocôndrias/metabolismo , Piperidonas/química , Piperidonas/farmacologia , Linhagem Celular , Neoplasias do Colo/metabolismo , Neoplasias do Colo/patologia , Curcumina/farmacologia , Glutationa/metabolismo , Células HCT116 , Humanos , Potencial da Membrana Mitocondrial/efeitos dos fármacos , Mitocôndrias/efeitos dos fármacos , Oxirredução/efeitos dos fármacos , Piperidonas/síntese química , Espécies Reativas de Oxigênio/metabolismo , Superóxidos/metabolismo
15.
Int J Palliat Nurs ; 21(1): 43-8, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25615834

RESUMO

AIM: Nurses have an important role in caring for terminally ill patients. They are often confronted with euthanasia but little is known about their attitudes towards it. The present study aimed to examine Iranian Muslim nurses' attitudes towards euthanasia. METHODS: In this exploratory cross-sectional study, all qualified registered nurses working in two teaching hospitals (Kashani and Hajar hospitals) in Iran were invited to participate. The Euthanasia Attitude Scale (EAS) was used to assess the nurses' attitude towards euthanasia. Of 266 nurses who fit the criteria, 190 participated in the study (response rate 72.9%); 91.1% (n=173) were female and 8.9% (n=17) were male. RESULTS: In total, 57.4%, 3.2% and 39.5% of nurses reported a negative, neutral and positive attitude to euthanasia respectively. Nurses reported their most negative attitude to the domain 'practical consideration' with mean of 2.36±0.9 and most positive attitude to the domain 'treasuring life' with a mean EAS score of 2.85±0.4. CONCLUSION: The majority of Muslim nurses were found to have negative attitudes to euthanasia. We recommend that future studies should be conducted to examine Muslim nurses' attitudes to euthanasia in different cultures to determine the role of culture and religious beliefs in attitude to euthanasia.


Assuntos
Atitude do Pessoal de Saúde , Eutanásia , Recursos Humanos de Enfermagem/psicologia , Estudos Transversais , Humanos , Irã (Geográfico)
16.
Br J Nurs ; 24(6): S12, S14-7, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25815995

RESUMO

AIM: Taking care of patients with pressure ulcers requires a high level of knowledge. The purpose of this study was to determine the level of nursing students' knowledge of pressure ulcer prevention, classification and management. METHODS: The study was conducted in two nursing colleges (Razi Nursing and Midwifery College and Shahrekord Nursing and Midwifery College) in Iran. All final-year bachelors nursing students in both colleges were invited to participate in the study. Data were collected using Pieper's Pressure Ulcer Knowledge Test (PPUKT). RESULTS: Participants answered correctly 67% of all 41 items in three sections (prevention, classification and evaluation). The students' rate of correct answers in the pressure ulcer evaluation category was significantly higher than the correct answers in the other two categories. CONCLUSION: The study revealed that nursing students had insufficient knowledge of pressure ulcers. It was concluded that courses aimed at raising students' knowledge of pressure ulcers are needed in nurse education.


Assuntos
Úlcera por Pressão/enfermagem , Estudantes de Enfermagem , Humanos , Irã (Geográfico) , Conhecimento
17.
Indian J Palliat Care ; 21(2): 192-7, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26009673

RESUMO

BACKGROUND: Education about caring for dying patients could be effective in changing nursing students' attitude toward caring for dying patients. AIM: The aim of the present study was to examine the nursing students' attitude toward caring for dying patients and effects of education on their attitude. MATERIALS AND METHODS: The present study enjoys a quasi-experimental method with using one-group pre-test/post-test design conducted in Bam in southeast of Iran. The attitude of nursing students was measured using Frommelt Attitude Toward Care of the Dying (FATCOD) scale before and after an educational intervention. Data were analyzed using non-parametric tests in Statistical Package for the Social Sciences (SPSS) 18 software. RESULTS: Of 32 students, 30 participated in this study (response rate of 94%). Only 20% of the students reported previous experience of dying patients in their clinical courses. Students showed moderately negative to neutral attitudes toward caring for dying patients. Education has improved students' attitude significantly (mean score of FATCOD before study were 3.5 ± 0.43 and after intervention were 4.7 ± 0.33) (P < 0.001). CONCLUSION: Educational programs about death and caring for dying patients should be added to undergraduate nursing curricula. Further research recommended examining nursing students' knowledge about caring for dying patients and the effect of education on their knowledge.

18.
Complement Ther Med ; 80: 103008, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38040096

RESUMO

BACKGROUND: We performed a systematic review and meta-analysis of all published clinical trial studies to provide a more accurate estimation of pomegranate effects on liver enzymes in different clinical conditions. METHODS: A systematic literature search was carried out using electronic databases, including PubMed, Web of Science, and Scopus, up to March 2023 to identify eligible randomized clinical trials (RCTs) evaluating the effect of pomegranate consumption on liver function enzymes. Heterogeneity tests of the selected trials were performed using the I2 statistic. Random effects models were assessed based on the heterogeneity tests, and pooled data were determined as the weighted mean difference with a 95% confidence interval. RESULTS: Out of 3811 records, 9 eligible RCTs were included in the current study. However, there are limitations in the included studies, which can be mentioned in the dose, duration, and type of interventions that are different among the studies, as well as the small number of included studies. All this causes heterogeneity among studies and this heterogeneity limits the consistency of the results. Our meta-analysis showed that pomegranate intake had a significant effect on lowering aspartate aminotransferase (AST) levels in long-term intervention (> 8 weeks), obese (BMI≥30) individuals, or patients with metabolic disorders. Furthermore, results showed a significant decrease in alanine aminotransferase (ALT) levels in the long-term intervention (> 8 weeks) or in patients with metabolic disorders following the pomegranate intake. Combined results from the random-effects model indicated a significant reduction in gamma-glutamyl transferase (GGT) levels (WMD: -5.43 IU/L 95% CI: -7.78 to -3.08; p < 0.001;) following the pomegranate intake. The results of Egger's test mentioned a significant publication bias for the trials examining the effect of pomegranate intake on AST (p = 0.007) and ALT (p = 0.036). CONCLUSION: Our results suggest that long-term pomegranate intake may be effective in ameliorating liver enzymes in adults with obesity and metabolic disorders who are more likely to have elevated baseline liver enzymes due to some degree of liver injury or tissue damage. However, some studies failed to conduct independent biochemical characterization of the product used, including the presence and quantity of polyphenols, antioxidants, and proanthocyanidins.


Assuntos
Hepatopatias , Doenças Metabólicas , Punica granatum , Adulto , Humanos , Alanina Transaminase , Fígado , Hepatopatias/tratamento farmacológico , Testes de Função Hepática
19.
Mult Scler Relat Disord ; 83: 105454, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38306888

RESUMO

BACKGROUND: Multiple sclerosis (MS), as a demyelinating disease correlated with inflammation and oxidative stress, affects the central nervous system and causes a wide range of complications, including psychiatric disorders. Considering the anti-inflammatory and antioxidant properties associated with the bioactive components of saffron, such as crocin (trans-crocetin bis(ß-d-gentiobiosyl) ester), and their potential impact on ameliorating psychiatric symptoms, our study aimed to investigate the effect of crocin on biomarkers of inflammation, oxidative stress, and mental health, e.g., depression and anxiety in individuals with MS. METHOD: Patients with MS were randomized into two groups, taking either 15 mg crocin tablets twice a day (n = 25; 30 mg/day) or placebo tablets (n = 25) for 8 weeks. The valid and reliable Beck depression and anxiety scale questionnaire was recorded, and fasting blood samples were collected to measure biomarkers, including high-sensitivity C-reactive protein (hs-CRP), malondialdehyde (MDA), and nitric oxide (NO) at baseline and week 8 following the intervention. RESULTS: The data analysis using ANCOVA showed that supplementation with crocin for 8 weeks significantly lowered hs-CRP levels (p-value= 0.01). In addition, within-group comparisons showed crocin significantly decreased anxiety (p-value= 0.01). However, crocin did not affect serum MDA and NO after 8 weeks of intervention. CONCLUSION: Our findings suggest that crocin may keep promise in attenuating inflammation, evidenced by reducing hs-CRP in patients with MS. However, supplementation for 8 weeks may not be sufficient to improve mental health, and future clinical studies with higher sample sizes and various doses and durations are recommended.


Assuntos
Proteína C-Reativa , Carotenoides , Esclerose Múltipla , Humanos , Proteína C-Reativa/metabolismo , Esclerose Múltipla/complicações , Esclerose Múltipla/tratamento farmacológico , Método Duplo-Cego , Biomarcadores , Inflamação/tratamento farmacológico , Nível de Saúde , Suplementos Nutricionais
20.
Int J Palliat Nurs ; 19(8): 403-10, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23970297

RESUMO

BACKGROUND: Nurses are the element of the palliative care team who spend the most time with patients. Nurses' attitudes toward palliative care affect their behaviour toward their patients. AIM: This study sought to examine oncology and intensive care unit (ICU) nurses' attitudes toward palliative care in south-east Iran. METHODS: A self-administered questionnaire was used to assess the palliative care attitudes of 140 oncology and ICU nurses from three hospitals supervised by Kerman University of Medical Science. RESULTS: Participants had moderately negative to neutral attitudes toward palliative care (2.99 ± 0.29 out of 5). Among all categories, the highest mean score came from the category of 'patient's preferences' (mean=3.66) and the lowest from the category of 'withholding and withdrawing treatment' (mean=2.42). A significant correlation was found between nurses' attitudes toward palliative care and some demographic characteristics, including marital status, type of ward, palliative care education, personal study about palliative care, level of education, and experience of caring for a dying family member. CONCLUSIONS: This study suggests that educational designers should include specific courses about death and palliative care in undergraduate and postgraduate nursing curricula. Educational programmes need to build on the specific experiences of death and dying among nurses and auxiliary nurses.


Assuntos
Atitude do Pessoal de Saúde , Recursos Humanos de Enfermagem/psicologia , Cuidados Paliativos , Adulto , Feminino , Humanos , Irã (Geográfico) , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários
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