Objective: Tumor hypoxia is associated with a poorer prognosis in cancer patients and can diminish the efficacy of radiation therapy (RT). This study investigates the potential of metformin to enhance radiosensitivity in hypoxic cancer cells.
Methods: Preliminary experiments were conducted to validate the impact of hypoxia on radiation response.
Malnutrition is a complicated illness that affects people worldwide and is linked to higher death rates, a heightened vulnerability to infections, and delayed cognitive development. Experimental models have been constructed to comprehend the mechanisms associated with hunger. In this regard, the current study used two different types of food aiming to validate a murine model of malnutrition based on dietary restriction.
View Article and Find Full Text PDFJ Cosmet Dermatol
December 2024
Objective: The current study aims to investigate the safety and efficacy of using calcium hydroxyapatite (CaHA) versus CaHA associated with hyaluronic acid (HA) for forehead volume replacement and contour restoration without forehead irregularities.
Methods: This interventional study involved 132 participants in a two-arm, parallel, double-blind trial for forehead treatment using the supraperiosteal technique. Group A received CaHA, and Group B received a combination of CaHA and HA as filler materials.
Food Res Int
August 2024
Edible insects are recognized as promising food sources due to their nutritional composition. Some species, such as Gryllus assimilis, contain proteins, lipids, and carbohydrates of high biological value, which regulate several metabolic functions, including the Renin-Angiotensin System (RAS). In this context, the present study aimed to assess the effects of dietary supplementation with whole Gryllus assimilis powder on the metabolism of malnourished mice.
View Article and Find Full Text PDFGene
October 2024
Obesity and overweight are multifactorial diseases affecting more than one-third of the world's population. Physical inactivity contributes to a positive energy balance and the onset of obesity. Exercise combined with a balanced diet is an effective non-pharmacological strategy to improve obesity-related disorders.
View Article and Find Full Text PDFSupport Care Cancer
January 2024
Objective: To identify predictors of sarcopenia (demographical, anthropometric measurements, tumor-related clinical characteristics, performance status, and serum C-reactive protein (CRP) and albumin levels in individuals with head and neck squamous cell carcinoma (HNSCC).
Material And Methods: This cross-sectional study selected diagnosed with HNSCC (n = 125). Sarcopenia was defined as low muscle strength and low physical performance.
Phytomedicine
October 2023
Background: Lychnophora ericoides Mart, also known as the Brazilian arnica or fake arnica, belongs to the Asteraceae family. Leaves and roots are used in alcoholic and hydroalcoholic preparations for the treatment of wounds, inflammation, and pain.
Purpose: The present study aimed to investigate the effects of L.
Sestrins (SESNs) are a family of evolutionarily conserved proteins among mammals. They have several body homeostatic functions such as antioxidant, metabolic, and anti-aging, and are required to regenerate hyperoxidized forms of peroxiredoxins and reactive oxygen species. Sestrin 2 has been studied as a therapeutic agent in obesity treatment.
View Article and Find Full Text PDFLasers Med Sci
March 2023
To evaluate the effects of Light-Emitting Diode (LED) irradiation on the expression of thermogenesis and lipogenesis-associated markers in adipose tissue and metabolic parameters of obese mice. Twenty-four male mice were divided into four groups: i) ST fed standard diet; ii) HCD fed hyperglycemic diet; iii) LED + I fed hyperglycemic diet and irradiated with LED in the interscapular region; iv) LED + A fed hyperglycemic diet and irradiated with LED in the abdominal region. The first phase of the study comprehended the induction of obesity for 12 weeks.
View Article and Find Full Text PDFMol Cell Endocrinol
March 2023
Maternal obesity and dietary style in the pregnancy-lactation period may result in long-term effects on the metabolic health of the offspring, thus increasing the risk of diseases, such as obesity, diabetes, and cardiovascular diseases. Curcumin is a natural polyphenolic compound that has beneficial properties on metabolism. Accordingly, this study is intended to evaluate the effects of curcumin supplementation in pregnant and lactating female mice on the anthropometric, metabolic and molecular parameters of the offspring fed a hyperglycemic diet.
View Article and Find Full Text PDFGene
January 2023
Differences in the features of aggressiveness of non-melanoma skin cancer (NMSC) subtypes, between basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) are relevant characteristics. Comparing the characteristics between NMSC subtypes might help identify molecules associated with cancer metastasis and invasion. Considering these facts, the current study aimed to identify a molecular target for inhibiting skin cancer metastasis and invasion.
View Article and Find Full Text PDFThis study investigated the antineoplastic effects of crotoxin isolated from snake venom of the South American Crotalus durissus terrificus in oral cancer cell lines and in an animal model of chemically induced oral cancer. We analyzed cell viability and death, clonogenic formation, DNA fragmentation, migration assay, and gene expression of MMP2, MMP9, COL1A1, and CASP3. In the animal model, after induction of oral cancer by 4-nitroquinoline-1-oxide carcinogen, mice were treated with crotoxin to investigate its effects on tumor development in tongue and oral mucosa.
View Article and Find Full Text PDFRadiation therapy for head and neck squamous cell carcinoma (HNSCC) is associated with several complications. Although photobiomodulation (PBM) has radioprotective effects in normal tissue, it could also enhance the growth of neoplastic cells. Thus, the present study aimed to investigate the cellular response of oral squamous cell carcinoma with pre-exposure to low-level phototherapy before radiotherapy.
View Article and Find Full Text PDFObjective: Oral squamous cell carcinoma (OSCC) is one of the most common neoplasms worldwide. The current study aimed to identify potential biomarkers associated with OSCC survival.
Materials And Methods: Differentially expressed genes (DEGs) in atypical OSCC cases were identified using two public datasets: The Cancer Genome Atlas and the Gene Expression Omnibus database.
Photodiagnosis Photodyn Ther
September 2022
Unlabelled: Institutionalization has been associated with social isolation, psychological and cognitive changes, and decreased levels of physical activity in older adults.
Objectives: The aim of this study was to estimate the prevalence of dementia, mild cognitive impairment (MCI), and functional dependence in older adults dwelling in two different Brazilian long-term care facilities (LTCFs).
Methods: This is a cross-sectional study with 185 older people of both sexes, aged 60 years or over, residing in two LTCFs in the city of Montes Claros-MG, Brazil.
Curr Aging Sci
May 2022
Aims: The present study aimed to develop and evaluate a new dairy by-product nutritional supplement with Buriti fruit to improve malnutrition in mice and elderly woman.
Background: Malnutrition is a prevalent problem in the elderly; therefore, oral dietary supplementation is an important strategy to reduce this health problem incidence.
Objective: The present study evaluated the effects of a low-cost food supplement, made from byproducts of the dairy and fruit industry in the Brazilian Cerrado (Buriti), on the nutritional status and on the recovery of the metabolic profile of malnourished animals and elderly women.
The aim of this study is to investigate the antineoplastic potential of photodynamic therapy (PDT) mediated by an aluminum-phthalocyanine chloride nanoemulsion (AlPc-NE), against an oral squamous cell carcinoma (OSCC) cell line in vitro. Both OSCC (SCC9) and A431 cell lines were studied in vitro. Four study groups were used: Group 1 (phosphate-buffered saline [PBS]), Group 2 (PBS + 28.
View Article and Find Full Text PDFBackground: Neutrophil extracellular traps (NETs) are a recently discovered neutrophil defense mechanism which modulates several inflammatory conditions contributing to metabolic profile alterations. Therefore, the present study aimed to evaluate the production of NETs in obese patients and mice, verifying the possible mechanisms associated with the release of NETs by the adipose tissue.
Methods And Results: The present study investigated NETs production in human adipose tissue and also showing the neutrophils using intravital microscopy in mouse epididymal adipose tissue.
Background: Obesity is a serious health problem that dysregulate Renin-Angiotensin System (RAS) and intestinal microbiota.
Objective: The present study aimed to evaluate the Angiotensin-(1-7) [ANG-(1-7)] oral formulation effects on obese mice intestinal microbiota.
Methods: Mice were divided into four groups: obese and non-obese treated with ANG-(1-7) and obese and non-obese without ANG-(1-7) during four weeks.
COVID-19 was first reported in Wuhan, China, in December 2019. It is widely accepted that the world will not return to its prepandemic normality until safe and effective vaccines are available and a global vaccination program has been successfully implemented. Antisense RNAs are single-stranded RNAs that occur naturally or are synthetic and enable hybridizing and protein-blocking translation.
View Article and Find Full Text PDFBackground: Head and neck squamous cell carcinoma (HNSC) etiopathogenesis remains unclear, and the biological changes with the activation of heat shock proteins (HSPs) and prion protein (PRNP) promoted by hypoxia in HNSC are undetermined. This study investigates hypoxia's effect in lymph node metastasis by PRNP expression changes and its main partners.
Methods: The study combined a theoretical/cell culture study with a case-control study.
Oral Surg Oral Med Oral Pathol Oral Radiol
June 2021
Objective: The purpose of the present study was to investigate the effect of acupuncture on xerostomia in irradiated patients with head and neck squamous cell carcinoma (HNSCC).
Study Design: A preventive, 2-arm, parallel, single-blind trial was performed. Patients with HNSCC (N = 296) were checked for eligibility, and 107 patients were enrolled in the study.