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1.
Virol J ; 21(1): 67, 2024 03 20.
Artículo en Inglés | MEDLINE | ID: mdl-38509569

RESUMEN

Since 1997, highly pathogenic avian influenza viruses, such as H5N1, have been recognized as a possible pandemic hazard to men and the poultry business. The rapid rate of mutation of H5N1 viruses makes the whole process of designing vaccines extremely challenging. Here, we used an in silico approach to design a multi-epitope vaccine against H5N1 influenza A virus using hemagglutinin (HA) and neuraminidase (NA) antigens. B-cell epitopes, Cytotoxic T lymphocyte (CTL) and Helper T lymphocyte (HTL) were predicted via IEDB, NetMHC-4 and NetMHCII-2.3 respectively. Two adjuvants consisting of Human ß-defensin-3 (HßD-3) along with pan HLA DR-binding epitope (PADRE) have been chosen to induce more immune response. Linkers including KK, AAY, HEYGAEALERAG, GPGPGPG and double EAAAK were utilized to link epitopes and adjuvants. This construct encodes a protein having 350 amino acids and 38.46 kDa molecular weight. Antigenicity of ~ 1, the allergenicity of non-allergen, toxicity of negative and solubility of appropriate were confirmed through Vaxigen, AllerTOP, ToxDL and DeepSoluE, respectively. The 3D structure of H5N1 was refined and validated with a Z-Score of - 0.87 and an overall Ramachandran of 99.7%. Docking analysis showed H5N1 could interact with TLR7 (docking score of - 374.08 and by 4 hydrogen bonds) and TLR8 (docking score of - 414.39 and by 3 hydrogen bonds). Molecular dynamics simulations results showed RMSD and RMSF of 0.25 nm and 0.2 for H5N1-TLR7 as well as RMSD and RMSF of 0.45 nm and 0.4 for H5N1-TLR8 complexes, respectively. Molecular Mechanics Poisson-Boltzmann Surface Area (MM/PBSA) confirmed stability and continuity of interaction between H5N1-TLR7 with the total binding energy of - 29.97 kJ/mol and H5N1-TLR8 with the total binding energy of - 23.9 kJ/mol. Investigating immune response simulation predicted evidence of the ability to stimulate T and B cells of the immunity system that shows the merits of this H5N1 vaccine proposed candidate for clinical trials.


Asunto(s)
Subtipo H5N1 del Virus de la Influenza A , Vacunas , Animales , Humanos , Subtipo H5N1 del Virus de la Influenza A/genética , Epítopos de Linfocito T/genética , Receptor Toll-Like 7 , Receptor Toll-Like 8 , Epítopos de Linfocito B , Biología Computacional/métodos , Simulación del Acoplamiento Molecular , Vacunas de Subunidad/genética
2.
BMC Gastroenterol ; 22(1): 102, 2022 Mar 07.
Artículo en Inglés | MEDLINE | ID: mdl-35255811

RESUMEN

BACKGROUND: Given the increasing prevalence of non-alcoholic fatty liver disease, it is necessary to find an easy and cost-effective method in its management and treatment. Probiotics are a group of living microorganisms that might affect NAFLD through the intestinal-liver axis. The present clinical trial aims to examine the effect of probiotic yogurt consumption on liver enzymes, steatosis and liver fibrosis in patients with NAFLD. METHODS: Sixty-eight patients with NAFLD will be recruited in this study. After block matching for sex, BMI and age, patients will be randomly assigned to receive 300 g/d probiotic yogurt containing 106 cfu/g of Lactobacillus acidophilus and Bifidobacterium lactis strains or 300 g/d plain yogurt daily for 12 weeks and those in the control group would receive similar amounts of plain yogurts. Weight, height, and waist circumference will be measured at study baseline and after the intervention. Biochemical indicators including plasma glucose, serum insulin, lipid profile, liver markers (ALT, AST and GGT) will be examined at study baseline and at the end of the trial. Insulin resistance and insulin sensitivity will be determined using the HOMA-IR and QUICKI equation. The degree of steatosis and hepatic fibrosis will also be assessed at the beginning and end of the intervention by the same gastroenterologist using elastography with fibroscan. DISCUSSION: Probiotics have been suggested as a new strategy in the management of NAFLD. Their effects might be mediated through intestinal microbiota modification and production of short-chain fatty acids. Consumption of probiotic-enriched foods, rather than their supplements, might be a cost-effective method for long-term use in these patients. In case of finding the beneficial effects of probiotic yogurt consumption in the current clinical trial, its inclusion in the dietary plan of NAFLD patients can be recommended. Trial registration This clinical trial was registered in Iranian Registry of Clinical Trials ( www.irct.ir ) at 2021-04-19 with code number of IRCT20210201050210N1.


Asunto(s)
Enfermedad del Hígado Graso no Alcohólico , Probióticos , Humanos , Irán , Cirrosis Hepática , Probióticos/uso terapéutico , Ensayos Clínicos Controlados Aleatorios como Asunto , Yogur/microbiología
3.
Adv Exp Med Biol ; 1401: 97-162, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35781219

RESUMEN

Autophagy is known as a conserved self-eating mechanism that contributes to cells to degrade different intracellular components (i.e., macromolecular complexes, aggregated proteins, soluble proteins, organelles, and foreign bodies). Autophagy needs formation of a double-membrane structure, which is composed of the sequestered cytoplasmic contents, called autophagosome. There are a variety of internal and external factors involved in initiation and progression of autophagy process. Viruses as external factors are one of the particles that could be associated with different stages of this process. Viruses exert their functions via activation and/or inhibition of a wide range of cellular and molecular targets, which are involved in autophagy process. Besides viruses, a variety of cellular and molecular pathways that are activated and inhibited by several factors (e.g., genetics, epigenetics, and environment factors) are related to beginning and developing of autophagy mechanism. Exosomes and microRNAs have been emerged as novel and effective players anticipated in various stages of autophagy. More knowledge in these pathways and identification of accurate roles of them could help to provide better therapeutic approaches in several diseases such as cancer. We highlighted the roles of viruses, exosomes, and microRNAs in the autophagy processes.


Asunto(s)
Exosomas , MicroARNs , Virus , Exosomas/metabolismo , MicroARNs/metabolismo , Autofagia/fisiología , Autofagosomas/metabolismo
4.
Pharmacol Res ; 170: 105727, 2021 08.
Artículo en Inglés | MEDLINE | ID: mdl-34126229

RESUMEN

FINDINGS: on the level of inflammatory cytokines following vitamin D supplementation among individuals with abnormal glucose homeostasis (AGH) are controversial. Therefore, the present study was conducted on AGH patients to assess the impact of vitamin D on inflammatory cytokines such as CRP, TNF-α and IL-6. A systematic search up to September 2020 was performed through PubMed and Scopus databases. All clinical studies which evaluated the effect of oral vitamin D supplementation on inflammation in patients with AGH were included. The random-effects model was applied to obtain pooled results. For dose-response analysis, we used a fractional polynomial model. Overall, 38 studies, with 46 effect sizes, were included in this study. Combining effect sizes, we found that vitamin D considerably decrease serum concentrations of CRP (weight mean difference (WMD): - 0.67 mg/l; 95%CI: - 0.92, - 0.43; P < 0.001), IL-6 (WMD: -1.93 pg/mL; 95%CI: -2.80, -1.07; P < 0.001) and TNF-α (WMD: -0.81 pg/mL; 95%CI: -1.59, -0.03; P = 0.04). In the dose-response analysis, we failed to find any correlation between dosage of supplements and inflammatory biomarkers concentrations. Summarizing earlier studies, we demonstrated that circulating concentrations of inflammatory cytokines such as CRP, TNF-α, and IL-6 might be decreased following vitamin D supplementation among individuals with AGH.


Asunto(s)
Antiinflamatorios/uso terapéutico , Glucemia/efectos de los fármacos , Citocinas/sangre , Trastornos del Metabolismo de la Glucosa/tratamiento farmacológico , Mediadores de Inflamación/sangre , Vitamina D/uso terapéutico , Antiinflamatorios/efectos adversos , Biomarcadores/sangre , Glucemia/metabolismo , Regulación hacia Abajo , Trastornos del Metabolismo de la Glucosa/sangre , Trastornos del Metabolismo de la Glucosa/diagnóstico , Homeostasis , Humanos , Ensayos Clínicos Controlados Aleatorios como Asunto , Resultado del Tratamiento , Vitamina D/efectos adversos
5.
Eur J Pharmacol ; 973: 176563, 2024 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-38593929

RESUMEN

Abnormalities in epigenetic modifications can cause malignant transformations in cells, leading to cancers of the gastrointestinal (GI) tract, which accounts for 20% of all cancers worldwide. Among the epigenetic alterations, DNA hypomethylation is associated with genomic instability. In addition, CpG methylation and promoter hypermethylation have been recognized as biomarkers for different malignancies. In GI cancers, epigenetic alterations affect genes responsible for cell cycle control, DNA repair, apoptosis, and tumorigenic-specific signaling pathways. Understanding the pattern of alterations in DNA methylation in GI cancers could help scientists discover new molecular-based pharmaceutical treatments. This study highlights alterations in DNA methylation in GI cancers. Understanding epigenetic differences among GI cancers may improve targeted therapies and lead to the discovery of new diagnostic biomarkers.


Asunto(s)
Metilación de ADN , Epigénesis Genética , Neoplasias Gastrointestinales , Metilación de ADN/genética , Humanos , Neoplasias Gastrointestinales/genética , Neoplasias Gastrointestinales/patología , Animales , Regulación Neoplásica de la Expresión Génica , Biomarcadores de Tumor/genética
6.
Clin Case Rep ; 11(6): e7027, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37266350

RESUMEN

Infective endocarditis (IE) rarely presents with cutaneous manifestations due to earlier diagnosis and treatment. We present a case of middle-aged male patient presenting with an erythematous papular rash in the upper extremities and left knee, further progressing into painful ulcers with crusted and necrotic center in the arms and fingers. These cutaneous lesions were further followed by shaking chills and fever, which brought the patient to our hospital. Laboratory evaluation revealed elevated ESR (erythrocyte sedimentation rate) and C-reactive protein. Blood cultures taken were negative. Biopsy of the skin lesions were consistent with cutaneous leukocytoclastic vasculitis, and the gram smear revealed gram-positive cocci. The patient developed dyspnea and chest pain, which raised suspicion for IE. TEE (transesophageal echocardiography) demonstrated mild LV diastolic dysfunction, 1+ tricuspid valve regurgitation, mild mitral regurgitation, and vegetation-like lesions on the surface of mitral valve leaflets, consequently IE was confirmed. In conclusion, clinicians must look carefully for skin manifestations in cases with high likelihood of IE, even when other typical symptoms are absent.

7.
BMJ Open ; 13(4): e063988, 2023 04 28.
Artículo en Inglés | MEDLINE | ID: mdl-37117000

RESUMEN

INTRODUCTION: Non-alcoholic fatty liver disease (NAFLD) is a hepatic condition that is considerably prevalent across the world. Dietary intakes, in which macronutrient composition is precisely planned, might be able to reduce inflammation, steatosis and fibrosis among patients with NAFLD. A moderately carbohydrate restricted diet with weight loss has been demonstrated to improve liver fat content among overweight or obese patients. However, there is no information about the appropriateness of such a restriction, without weight loss, in normal-weight patients. This randomised clinical trial will be aimed at assessing the effect of moderate carbohydrate restriction on liver enzymes, liver steatosis and fibrosis in normal-weight patients with NAFLD. METHODS AND ANALYSIS: This randomised controlled clinical trial will be conducted to evaluate the impact of a moderately carbohydrate restricted diet on liver enzymes, steatosis and fibrosis in 52 eligible normal-weight individuals with NAFLD. Transient elastography and controlled attenuation parameter with FibroScan will be applied to diagnose NAFLD. After individual matching based on body mass index, age and sex, patients will be randomly assigned to receive a moderately carbohydrate restricted diet or an isocaloric diet without carbohydrate restriction for 12 weeks. The primary and secondary outcomes in this study will be liver function indices, including liver steatosis and fibrosis, metabolic parameters and anthropometric measures. All these variables will be assessed at study baseline and postintervention. ETHICS AND DISSEMINATION: The present clinical trial study was accepted by the ethics committee of TUMS (Tehran University of Medical Sciences) (code: IR.TUMS.MEDICINE.REC.1400.116). TRIAL REGISTRATION NUMBER: IRCT20210119050086N1.


Asunto(s)
Enfermedad del Hígado Graso no Alcohólico , Humanos , Enfermedad del Hígado Graso no Alcohólico/complicaciones , Irán , Hígado/patología , Fibrosis , Dieta Baja en Carbohidratos , Carbohidratos , Pérdida de Peso , Ensayos Clínicos Controlados Aleatorios como Asunto
8.
Curr Mol Pharmacol ; 16(3): 346-361, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-35713130

RESUMEN

Acute liver injury (ALI) is a critical and fatal disorder associated with excessive Although considerable advances have been made in the early diagnosis and treatment of breast cancer, it is still one of the major causes of global cancer-related death in women over the last several decades. Phytochemicals have been shown to be promising agents in the prevention and treatment of breast cancer. Resveratrol is an important plant-derived polyphenolic compound with a variety of potent biological activities. It has been suggested that resveratrol can be used to prevent and treat various types of cancer, including breast cancer. Resveratrol can affect numerous signaling pathways in vitro, leading to the induction of cell cycle arrest and apoptosis, suppression of proliferation, reduction of inflammatory responses, and the inhibition of angiogenesis and metastasis. Nevertheless, studies of resveratrol in animal models of breast cancer have so far been disappointing.


Asunto(s)
Neoplasias , Animales , Femenino , Resveratrol/farmacología , Resveratrol/uso terapéutico , Proliferación Celular , Transducción de Señal , Apoptosis
9.
Biomed Pharmacother ; 166: 115264, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37619484

RESUMEN

Gastrointestinal (GI) carcinomas are a group of cancers affecting the GI tract and digestive organs, such as the gastric, liver, bile ducts, pancreas, small intestine, esophagus, colon, and rectum. MicroRNAs (miRNAs) are small functional non-coding RNAs (ncRNAs) which are involved in regulating the expression of multiple target genes; mainly at the post-transcriptional level, via complementary binding to their 3'-untranslated region (3'-UTR). Increasing evidence has shown that miRNAs have critical roles in modulating of various physiological and pathological cellular processes and regulating the occurrence and development of human malignancies. Among them, miR-145 is recognized for its anti-oncogenic properties in various cancers, including GI cancers. MiR-145 has been implicated in diverse biological processes of cancers through the regulation of target genes or signaling, including, proliferation, differentiation, tumorigenesis, angiogenesis, apoptosis, metastasis, and therapy resistance. In this review, we have summarized the role of miR-145 in selected GI cancers and also its downstream molecules and cellular processes targets, which could lead to a better understanding of the miR-145 in these cancers. In conclusion, we reveal the potential diagnostic, prognostic, and therapeutic value of miR-145 in GI cancer, and hope to provide new ideas for its application as a biomarker as well as a therapeutic target for the treatment of these cancer.


Asunto(s)
Carcinoma , Neoplasias Gastrointestinales , MicroARNs , Humanos , Neoplasias Gastrointestinales/genética , Carcinogénesis , Estómago , Regiones no Traducidas 3' , MicroARNs/genética
10.
Pathol Res Pract ; 241: 154232, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36528985

RESUMEN

Although extremely rare, malignant melanoma is the deadliest type of skin malignancy with the inherent capability to invade other organs and metastasize to distant tissues. In 2021, it was estimated that approximately 106,110 patients may have received the diagnosis of melanoma, with a mortality rate of 7180. Surgery remains the common choice for treatment in patients with melanoma. Despite many advances in the treatment of melanoma, some patients, such as those who have received cytotoxic chemotherapeutic and immunotherapic agents, a significant number of patients may show inadequate treatment response following initiating these treatments. Non-coding RNAs, including lncRNAs, have become recently popular and attracted the attention of many researchers to make new insights into the pathogenesis of many diseases, particularly malignancies. LncRNAs have been thoroughly investigated in multiple cancers such as melanoma and have been shown to play a major role in regulating various physiological and pathological cellular processes. Considering their core regulatory function, these non-coding RNAs may be appropriate candidates for melanoma patients' diagnosis, prognosis, and treatment. In this review, we will cover all the current literature available for lncRNAs in melanoma and will discuss their potential benefits as diagnostic and/or prognostic markers or potent therapeutic targets in the treatment of melanoma patients.


Asunto(s)
Melanoma , ARN Largo no Codificante , Neoplasias Cutáneas , Humanos , ARN Largo no Codificante/genética , Biomarcadores de Tumor/genética , Melanoma/diagnóstico , Melanoma/genética , Melanoma/terapia , Neoplasias Cutáneas/diagnóstico , Neoplasias Cutáneas/genética , Neoplasias Cutáneas/terapia , Pronóstico
11.
Breast Cancer ; 29(2): 352-360, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-35083630

RESUMEN

BACKGROUND: Data on the link between total and individual dairy product consumption and risk of breast cancer are controversial, especially in Middle Eastern populations. OBJECTIVE: This study aimed to evaluate the association between total and individual dairy product consumption and odds of breast cancer among Iranian women. METHODS: In the context of a population-based case-control study on 350 patients with pathologically confirmed cases of breast cancer and 700 age-matched controls, we assessed dietary intakes using a 106-item semi-quantitative dish-based food frequency questionnaire. Consumption of low- and high-fat dairy products as well as dietary intakes of pasteurized milk, cheese and yogurt were computed. RESULTS: Mean (± SD) age and BMI of study participants was 62.4 ± 10.8 y and 24.3 ± 5.2 kg/m2, respectively. After controlling for potential covariates, individuals in the top quartile of low-fat dairy product intake were less likely to have breast cancer than those in the bottom quartile (OR 0.08; 95% CI 0.05-0.16), while those with the highest intake of high-fat dairy intake had greater odds for breast cancer than those with the lowest intake (OR 8.62; 95% CI 4.78-15.55). Despite lack of a significant association between yogurt and cheese consumption and odds of breast cancer, we found a positive association between total milk intake (OR 1.76; 95% CI 1.16-2.65) and breast cancer, after controlling for potential confounders. CONCLUSION: Low-fat dairy intake was inversely and high-fat dairy consumption was positively associated with breast cancer. No significant association was found between yogurt and cheese consumption and breast cancer, while total milk intake was associated with a greater odds of breast cancer.


Asunto(s)
Neoplasias de la Mama , Animales , Neoplasias de la Mama/epidemiología , Neoplasias de la Mama/etiología , Estudios de Casos y Controles , Productos Lácteos/efectos adversos , Dieta/efectos adversos , Grasas de la Dieta/efectos adversos , Femenino , Humanos , Irán/epidemiología , Leche/efectos adversos , Factores de Riesgo
12.
Clin Case Rep ; 10(11): e6633, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-36439386

RESUMEN

The iliac vein is an extremely rare site of metastasis for extraskeletal mesenchymal chondrosarcoma (ESMC). Involvement of the veins usually leads to an extremely dismal prognosis. Here, we report a 50-year-old patient with retroperitoneal mesenchymal chondrosarcoma and initial metastasis to the iliac bone, which further progressed to involve the iliac vein. In this study, we reviewed the major characteristics of ESMC and the previously reported cases, considering the rarity of these tumors.

13.
IDCases ; 29: e01519, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35663606

RESUMEN

Brucellosis is a zoonotic disease endemic to the Middle East and Mediterranean basin. It has gained diagnostic challenge recently due to its increasingly non-specific and vague manifestations at presentation. Here, we report a 53-year-old man presenting with undulating fever and shaking chills and frequency, dysuria, hesitancy and malodorous urine. He had prior complicated urinary tract infection treated with intravenous antibiotics. Further evaluation revealed negative urine culture, intra-hepatic cholestasis due to underlying infection, elevated acute phase reactants and pancytopenia.The diagnosis of brucella was established as blood cultures grew Brucella melitensis and serum serology for Brucellosis returned positive. Following initiation of anti- brucella drugs, fever and laboratory abnormalities gradually returned to normal. Brucellosis should be always considered in the differential diagnosis of patients presenting with sepsis in endemic regions or when empiric antibiotic therapy fails to improve clinical and laboratory abnormalities. Diagnosis requires high level of suspicious based on the clinical history and constellation of symptoms.

14.
Urol Case Rep ; 43: 102085, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35497504

RESUMEN

Ureterocele is a distal ureteral segment cystic dilatation. Its prevalence in women ranges from 1/5000 to 1/12000. A 22-year-old adult female presented with a vulvar tumor with left-side pain. She was a candidate for an interlabial lump biopsy. A vulvar growth mimicking a uterine polyp was identified during her further evaluation. On ultrasonography of the abdomen and pelvis, a left-sided hydronephrisis (grade 1), proximal ureteral dilatation, and a ureterocele related to the distal portion of the left ureter that protruded into the urethra were detected. Under anesthesia examination, the ureterocele was removed.

15.
Front Nutr ; 9: 822557, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35223954

RESUMEN

OBJECTIVE: Prospective cohort studies on coffee, tea and caffeine in relation to the risk of rheumatoid arthritis (RA) have shown conflicting results. The aim of this study was to conduct a dose-response meta-analysis of cohort studies on the association between dietary caffeine, different types of coffee and tea consumption and the risk of RA. METHODS: PubMed/Medline, Scopus and EMBASE were searched up to July 2021 to identify relevant studies that had considered different types of coffee (caffeinated or decaffeinated), tea or caffeine exposure with RA as the main, or one of the, outcome(s). Two authors independently screened 742 publications. Finally, five prospective cohort studies were included in our meta-analysis. Pooled relative risks (RRs) were calculated by using a fixed-effects model. We also performed linear and non-linear dose-response analyses to examine the dose-response relations. RESULTS: Comparing extreme categories, we found a positive, significant association between coffee (RR: 1.30; 95% CI: 1.04-1.62; I 2 = 0%, n = 5) and decaffeinated coffee (RR: 1.89; 95% CI: 1.35-2.65; I 2 = 38.1%, n =3) consumption and risk of RA. One additional cup of coffee consumed per day was associated with an increased risk of RA by 6% (95% CI: 1.02-1.10; I 2 = 0%). This increase in the risk of RA for one cup/d of decaffeinated coffee was 11% (95% CI: 1.05-1.18; I 2 = 38). No significant association was observed between caffeinated coffee, tea or caffeine intake and the risk of RA. CONCLUSION: We found that a higher intake of coffee and decaffeinated coffee was associated with increased risk of RA. No significant association between caffeinated coffee, tea or caffeine intake and the risk of RA was observed. SYSTEMATIC REVIEW REGISTRATION: https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=227665, identifier: CRD42021227665.

16.
Sci Rep ; 12(1): 5471, 2022 03 31.
Artículo en Inglés | MEDLINE | ID: mdl-35361818

RESUMEN

Some studies suggested the effects of inflammatory cytokines in reducing muscle mass and muscle strength and, performance. This study aimed to compare pro-inflammatory cytokines in sarcopenic and non-sarcopenic subjects. 120 men and women were selected out from the cross-sectional study 'sarcopenia and its determinants among Iranian elders' (SARIR). Sarcopenia was defined based on the first 'European Working Group on sarcopenia in older people' (EWGSOP1) guidelines. A fasting blood sample was taken from each participant to measure serum high-sensitivity C-reactive protein (hs-CRP), Interleukin 6 (IL-6), and tumor necrosis factor α (TNFα). A total of 120 participants were included in this study. Mean age was 66.7 ± 7.7 years and mean body mass index (BMI) was 27.3 ± 4.2 kg/m2. Forty participants had the criteria of EWGSOP1 sarcopenia. A statistically significant difference was seen between normal and abnormal groups of muscle strength in hs-CRP (P-value = 0.04). Furthermore, we did not observe any remarkable association between inflammatory biomarkers including IL-6 (OR 1.15; 95% CI 0.31-4.28), TNF-α (OR 0.68; 95% CI 0.17-2.77), and hs-CRP (OR 2.39; 95% CI 0.87-6.55) and the presence of sarcopenia even after controlling for plausible confounders. We found that inflammatory biomarkers level was not associated with odds of sarcopenia. The lack of correlation between inflammatory cytokines and sarcopenia could be due to the participants' age and genetics. Future studies are required to confirm these findings.


Asunto(s)
Citocinas , Sarcopenia , Anciano , Estudios Transversales , Citocinas/inmunología , Femenino , Humanos , Irán/epidemiología , Masculino , Persona de Mediana Edad , Prevalencia , Sarcopenia/inmunología
17.
Eur J Gastroenterol Hepatol ; 34(6): 678-685, 2022 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-35352692

RESUMEN

OBJECTIVE: There is no previous study that investigated the association between Dietary Diversity Score (DSS) and odds of nonalcoholic fatty liver disease (NAFLD). The present study aimed to examine the association between DDS and its components and NAFLD among Iranian adults. METHODS: In the case-control study, we enrolled 121 newly diagnosed cases of NAFLD and 122 with age, BMI and sex-matched controls. All NAFLD patients were diagnosed through ultrasonography methods by gastroenterologists. Anthropometric parameters of participants including weight, height, hip circumference and waist circumference were measured. A validated 147-item semi-quantitative food frequency questionnaire was applied to assess the usual dietary intakes of participants. Binary logistic regression was conducted to estimate the risk of NAFLD in relation to DDS and its components, including refined grains, vegetables, fruits, dairy and meats. RESULTS: The mean age of study participants was 42.7 years of them 53.1% were male. Higher adherence to DDS [odds ratio (OR) = 0.48; 95% confidence interval (CI), 0.25-0.95] and vegetable group (OR = 0.34; 95% CI, 0.16-0.71) were remarkably associated with lower risk of NAFLD, after adjusting for several confounders including age, BMI, physical activity, energy intake, job, education, and antihypertensive drugs usage. Contrastingly, greater adherence to the refined grain (OR = 3.36; 95% CI, 1.44-7.87) and meat group (OR = 3.27; 95% CI, 1.25-6.90) was significantly associated with increased risk of NAFLD. CONCLUSION: High DDS is inversely correlated with the risk of NAFLD. Hence, increasing the diversity score of diet by emphasizing the higher diversity scores for vegetables and less for meat and refined grains may be profitable for the management of NAFLD.


Asunto(s)
Enfermedad del Hígado Graso no Alcohólico , Adulto , Estudios de Casos y Controles , Dieta/efectos adversos , Femenino , Humanos , Irán/epidemiología , Masculino , Enfermedad del Hígado Graso no Alcohólico/diagnóstico por imagen , Enfermedad del Hígado Graso no Alcohólico/epidemiología , Verduras
18.
Front Pharmacol ; 13: 860209, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35462903

RESUMEN

Many cellular signaling pathways contribute to the regulation of cell proliferation, division, motility, and apoptosis. Deregulation of these pathways contributes to tumor cell initiation and tumor progression. Lately, significant attention has been focused on the use of natural products as a promising strategy in cancer treatment. Quercetin is a natural flavonol compound widely present in commonly consumed foods. Quercetin has shown significant inhibitory effects on tumor progression via various mechanisms of action. These include stimulating cell cycle arrest or/and apoptosis as well as its antioxidant properties. Herein, we summarize the therapeutic effects of quercetin in gastrointestinal cancers (pancreatic, gastric, colorectal, esophageal, hepatocellular, and oral).

19.
Front Cardiovasc Med ; 9: 888319, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35795371

RESUMEN

The pineal gland is a neuroendocrine gland which produces melatonin, a neuroendocrine hormone with critical physiological roles in the circadian rhythm and sleep-wake cycle. Melatonin has been shown to possess anti-oxidant activity and neuroprotective properties. Numerous studies have shown that melatonin has significant functions in cardiovascular disease, and may have anti-aging properties. The ability of melatonin to decrease primary hypertension needs to be more extensively evaluated. Melatonin has shown significant benefits in reducing cardiac pathology, and preventing the death of cardiac muscle in response to ischemia-reperfusion in rodent species. Moreover, melatonin may also prevent the hypertrophy of the heart muscle under some circumstances, which in turn would lessen the development of heart failure. Several currently used conventional drugs show cardiotoxicity as an adverse effect. Recent rodent studies have shown that melatonin acts as an anti-oxidant and is effective in suppressing heart damage mediated by pharmacologic drugs. Therefore, melatonin has been shown to have cardioprotective activity in multiple animal and human studies. Herein, we summarize the most established benefits of melatonin in the cardiovascular system with a focus on the molecular mechanisms of action.

20.
Mol Ther Oncolytics ; 27: 100-123, 2022 Dec 15.
Artículo en Inglés | MEDLINE | ID: mdl-36321132

RESUMEN

Glioblastoma and gliomas can have a wide range of histopathologic subtypes. These heterogeneous histologic phenotypes originate from tumor cells with the distinct functions of tumorigenesis and self-renewal, called glioma stem cells (GSCs). GSCs are characterized based on multi-layered epigenetic mechanisms, which control the expression of many genes. This epigenetic regulatory mechanism is often based on functional non-coding RNAs (ncRNAs). ncRNAs have become increasingly important in the pathogenesis of human cancer and work as oncogenes or tumor suppressors to regulate carcinogenesis and progression. These RNAs by being involved in chromatin remodeling and modification, transcriptional regulation, and alternative splicing of pre-mRNA, as well as mRNA stability and protein translation, play a key role in tumor development and progression. Numerous studies have been performed to try to understand the dysregulation pattern of these ncRNAs in tumors and cancer stem cells (CSCs), which show robust differentiation and self-regeneration capacity. This review provides recent findings on the role of ncRNAs in glioma development and progression, particularly their effects on CSCs, thus accelerating the clinical implementation of ncRNAs as promising tumor biomarkers and therapeutic targets.

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