Nutrition and Metabolic Insights最新文献

Introduction: Any alteration in nutritional status can compromise the progression of breast cancer, as well as the tolerance and efficacy of chemotherapy. The aims of our study were to assess the nutritional status of breast cancer patients treated with chemotherapy and to identify nutritional factors that may exacerbate chemo-induced digestive toxicity.

Methods: This descriptive cross-sectional study was conducted within the medical oncology department of the National Institute of Salah Azaiez. A Mediterranean Diet Score (MDS) was used to evaluate the level of adherence to the Mediterranean Diet. Nutritional status was assessed using 2 methods; body composition evaluation utilising the TANITA BC 601 impedance metre and High authority of health (HAS) criteria of malnutrition. Digestive effects were assessed with World Health Organization (WHO) grades ranging from 0 to 4. High grades 3 and 4 signified toxic grades.

Results: We enrolled 107 adult women diagnosed with breast cancer undergoing the same chemotherapy protocol. The participants had an average age of 52.56 ± 9.75 years and an average BMI of 29.85 ± 5.72 kg/m² with 78.5% classified as overweight. Malnutrition was observed in 41% of patients, while sarcopenia was present in 12%. Chemotherapy-related adverse effects were predominantly constipation (80%), diarrhea (73%), nausea (70%) and vomiting (63.4%) with one-third experiencing high-grade toxicity. Strong adherence to Mediterranean Diet was observed in 48.6% of cases and higher MDS scores were inversely correlated with the severity of nausea (P = .01) and constipation (P = .02). Malnutrition was significantly associated with all digestive toxicities except with constipation. Sarcopenia was associated only with vomiting (P = .005).

Conclusion: There is a relationship between nutritional status and digestive toxicity, justifying early nutritional treatment to improve the tolerance and efficacy of chemotherapy.

Increasing dietary intake of fish oil is frequently recommended for decreasing the risk for cardiovascular diseases and improving metabolic health. We hypothesised that dietary intake of chromista oil (a marine food product and a rich source of long-chain n-3 polyunsaturated fatty acids) ameliorates metabolic impairments in mice with established excess adiposity. Three-to 4-week-old mice (male) were fed a control (n = 12) or a high-fat diet (HFD, n = 24) for 12 weeks to establish body fat mass. Then, mice on the HFD were assigned to 2 groups (n = 12 each) with 1 continuing being fed the HFD and the other fed the HFD with chromista oil for an additional 12 weeks. Intake of chromista oil did not affect body weight and body adiposity of the mice fed the HFD; mice fed the HFD had significantly more body weight and fat mass than control mice. The flattened daily oscillations of respiratory exchange ratio induced by the HFD were not changed by chromista oil intake. Intake of chromista oil significantly increased plasma concentration of insulin, the calculated value of HOMA-IR, and plasma concentration of adiponectin in the mice fed the HFD. However, blood glucose was unaffected by chromista oil. Transcription of genes encoding circadian rhythm and fatty acid metabolism of the 2 HFD-fed groups were similar. Untargeted metabolomic analysis showed that intake of chromista oil altered the hepatic metabolomic profile with substantial alterations in amino acid metabolism. Findings from this study indicate that dietary intake of chromista oil does not improve glucose homeostasis or alter the diminished metabolic flexibility in mice with excess adiposity induced by the HFD. argeted metabolomic analysis is warranted to investigate the effects of dietary chromista oil, as a source of n-3 poly unsaturated fatty acids, on metabolism in models of obesity.

Background: This study investigates the association between dietary flavonoid intake and the incidence of mild cognitive impairment (MCI) through a matched case-control design.

Methods: Dietary intake was assessed using a food frequency questionnaire, comparing the intake of flavonoids between individuals with MCI and those with normal cognitive function. Logistic regression analysis was employed to evaluate the correlation between dietary flavonoid intake and the risk of MCI. Additionally, blood concentrations of S100β, a marker of the blood-brain barrier (BBB) integrity, were measured using electrochemiluminescence immunoassay, and Pearson correlation analysis was conducted to explore the relationship between dietary flavonoid intake and blood S100β levels.

Results: Compared to participants with normal cognition, those with MCI had significantly lower dietary intakes of total flavonoids, isoflavones, daidzein, glycitein, genistein, kaempferol, myricetin, flavonols, and anthocyanidins, while the intake of peonidin was significantly higher. Univariate logistic regression analysis indicated that high dietary intake of total flavonoids, isoflavones, daidzein, glycitein, genistein, kaempferol, myricetin, and flavonols was negatively correlated with MCI, whereas peonidin intake was positively correlated with MCI. Multivariate logistic regression analysis confirmed these findings. Pearson correlation analysis revealed a significant negative correlation between dietary intake of kaempferol and myricetin and blood S100β levels.

Conclusion: Increasing the dietary intake of total flavonoids, isoflavones, daidzein, glycitein, genistein, and flavonols appears to be a protective factor against MCI, while higher intake of peonidin is associated with an increased risk of MCI. The protective or adverse effects of these flavonoids may not be related to the permeability of the BBB. Myricetin and kaempferol intake may protect cognitive function by maintaining BBB integrity.

Background: The autonomic nervous system (ANS) is affected by several factors, including major nutrients. However, their effects on the ANS remains unclear. Most studies had several limitations. They focused on humans, therefore they had difficulties excluding factors other than the nutrients. Their observation periods were too short (<4 hours) to align with typical absorption times of carbohydrates versus fats. They assessed the effects compared with the pre-prandial state rather than comparisons between different nutrient types.

Objective: We aimed to investigate the effects of carbohydrates and fats on the ANS.

Method: We employed a rat model to exclude the effects of external stimuli, used sufficient observation period, and compared the ANS parameters among animals fed 3 different diets. The rats were divided into carbohydrate-rich-diet (carb group) and fat-rich-diet (fat group) groups. We investigated the effects of carbohydrates and fats on the ANS by measuring heart rate variability parameters in rats. Electrodes and electrocardiography (ECG) transmitters were implanted in 14 Wistar rats maintained on a standard diet for 2 days followed by the experimental diets for 2 days. ECG readings were continuously recorded for 4 days. The R waves, function of the R-R interval, and time were calculated. A fast Fourier transform was used to obtain the power spectrum of the fluctuation (low frequency [LF: 0.2-0.75 Hz]; high frequency [HF: 0.75-3.0 Hz]; LF/HF ratio).

Result: Compared with the standard-diet group, the carb group showed significantly increased HF activity, while the fat group showed a significantly increased LF/HF ratio.

Conclusion: The results reveal a link between macronutrients and ANS activity.

Background: Individuals who have hyperuricemia are at increased risk of cardiovascular diseases due to factors such as endothelial dysfunction, insulin resistance, and increased production of oxygen-free radicals. However, data on the prevalence and predictors of hyperuricemia among adults with cardiac diseases in Ethiopia are limited.

Methods: A cross-sectional study was conducted on 269 participants at the Ambo University referral hospital from June to September, 2022. Participant demographics and relevant data were obtained through convenient sampling. Hyperuricemia was defined according to the manufacturer's cutoff criteria. Data entry and analysis were conducted using SPSS 25. The association between the outcome and explanatory variables was assessed using a binary logistic regression model.

Results: Of the study participants, 56.9% were male. The mean age of participants was 51.1 years (±15.8). The prevalence of hyperuricemia was 43.1% (95% CI: 37.1-49.1). Males presented a significantly higher prevalence of hyperuricemia compared to females (23.4% vs 19.7%, P = .026). Males had 2.9 times higher odds of hyperuricemia compared to females. Significant associations with the prevalence of hyperuricemia were found for individuals with a BMI ⩾30 kg/m², age ⩾54 years, and male gender, with adjusted odds ratios (95% CI) of 2.3 (1.7-5.2), 2.9 (2.2-5.9), and 3.56 (2.1-12.8), respectively. Additionally, smoking, dyslipidemia, and waist circumference were also significantly associated with the prevalence of hyperuricemia.

Conclusions: Nearly half of the cardiac patients in the study were diagnosed with hyperuricemia. These findings underscores the importance of early identification and treatment of hyperuricemia, alongside lifestyle and behavioral modifications, to maintain the quality of life in this specific population.

Sinusitis, one of the most prevalent and undertreated disorders, is a term used to describe inflammation of the paranasal sinuses caused by either infectious or non-infectious sources. Bacterial, viral, or fungal infections can all cause sinusitis. Sinusitis is classified into 3 types: acute, subacute, and chronic. Acute sinusitis lasts for less than 1 month, subacute sinusitis lasts from 1 to 3 months, and chronic sinusitis persists for over 3 months. This condition affects a significant portion of the population, imposing a substantial burden on the healthcare system. Antibiotics are the gold standard of bacterial sinusitis treatment. However, due to the rise of antimicrobial resistance, especially in immune-compromised patients, it is necessary to investigate potential adjunctive therapies. Based on the literature, vitamins (eg, vitamin D) have antioxidant, anti-inflammatory, and immune-modulatory properties and may effectively treat sinusitis and reduce mucous membrane inflammation. Besides vitamins, many other supplements like quercetin, sinupret, and echinacea have immunomodulatory effects and have shown promising results in sinusitis treatment. In this review, we look at the therapeutic role, safety, and efficacy of vitamins and nutritional supplements in sinusitis treatment.

Background: Crab-flavored seafood is a well-known traditional Japanese product that is sold as "imitation crab" worldwide. Although it is a low-cost, low-fat, high-protein food, there are few data on its potential health benefits. Here, we have assessed the effects of crab-flavored seafood consumption on organ weight and serum biomarkers levels in rats.

Methods: Sprague-Dawley rats (male; aged 6 weeks) were fed a normal diet (n = 8) or a normal diet with 5% dried crab-flavored seafood (n = 8) for 84 days. Food intake and overall body weight were measured every week; organ weight and blood biochemistry were evaluated at the end of the administration period.

Results: After 84 days, there were no significant differences in food intake, overall body weight, or organ weight between the 2 groups; however, the muscle weight of rats fed crab-flavored seafood tended to be higher than that of rats fed the normal diet. Several serum biomarkers did not differ between the 2 groups, but serum high-density lipoprotein, total bilirubin, and indirect bilirubin levels were significantly raised in rats fed crab-flavored seafood. Moreover, blood urea nitrogen was significantly lower, and some liver function parameters tended to be lower in rats fed crab-flavored seafood.

Conclusions: Consumption of crab-flavored seafood may be effective for promoting muscle protein synthesis and improving serum biomarkers associated with disorders such as cardiovascular disease and stroke. Thus, crab-flavored seafood may have application as a functional food for the global management of human health.

Monocyte chemotactic protein-1 (MCP-1), a small inducible cytokine, is involved in obesity-related chronic disorders. Adipocytes produce MCP-1 that is elevated in obese humans and in rodent models of obesity. This study examined the hepatic metabolomic alterations caused by adipose-specific MCP-1 deficiency in a rodent model of obesity. Wide-type (WT) and adipose-specific Mcp-1 knockdown mice (Mcp-1 ^-/-) were each assigned randomly to 2 groups and fed the standard AIN93G diet or a high-fat diet (HFD) for 12 weeks. Compared to the AIN93G diet, the HFD increased body weight, body fat mass, and plasma concentrations of insulin and leptin, regardless of genotype. There were no differences in these variables between WT and Mcp-1 ^-/- mice when they were fed the same diet. Eighty-seven of 172 identified metabolites met the criteria for metabolomic comparisons among the 4 groups. Thirty-nine metabolites differed significantly between the 2 dietary treatments and 15 differed when Mcp-1 ^-/- mice were compared to WT mice. The metabolites that significantly differed in both comparisons included those involved in amino acid, energy, lipid, nucleotide, and vitamin metabolism. Network analysis found that both HFD and adipose Mcp-1 knockdown may considerably impact amino acid metabolism as evidenced by alteration in the aminoacyl-tRNA biosynthesis pathways, in addition to alteration in the phenylalanine, tyrosine, and tryptophan biosynthesis pathway in Mcp-1 ^-/- mice. However, decreased signals of amino acid metabolites in mice fed the HFD and increased signals of amino acid metabolites in Mcp-1 ^-/- mice indicate that HFD may have down-regulated and adipose Mcp-1 knockdown may have up-regulated amino acid metabolism.

Objectives: The current study aimed to conduct a phytochemical screening of commonly known fruit red grape (Vitis vinifera L.) seed methanolic extract through gas chromatography and mass spectrometry (GC-MS) to identify the bioactive compounds responsible for its health benefits and evaluate the pharmacological potentialities of the extract and its fractions against oxidation, inflammation, pain, and diarrhea.

Methods: The in vitro antioxidant, anti-inflammatory, and cytotoxic characteristics of methanolic extracts and various solvent fractions of V. vinifera were evaluated using the DPPH free radical scavenging assay, membrane stabilizing, and brine shrimp lethality bioassay. Furthermore, the study assessed the effects of crude extracts (200, 400, and 600 mg/kg of body weight) on pain relief and reduction of diarrhea in animals using methods such as tail immersion, the acetic acid-induced writhing technique, and a diarrheal mouse model induced with castor oil.

Results: A total of 73 phytoconstituents were predominantly found in the seed extract based on the GC-MS analysis. Among the identified compounds, 9-octadecenamide (13.7%), and (9E,11E)-octadeca-9,11-dienoate (11.07%) are most abundant. Several notable constituents, such as gamma-sitosterol, stigmasterol, paromomycin, 4,6-cholestadienol, gamma-tocotrienol, 24-Propylidenecholest-5-en-3beta-ol, and alpha-tocopherol acetate, are also present. The methanolic extract of V. vinifera seed and its different solvent fractions showed promising antioxidant properties (IC₅₀ = 1.19-17.42 µg/mL) compared to the standard antioxidant butylated hydroxytoluene (IC₅₀ = 20.46 µg/mL). Aqueous soluble fraction exerted inhibition of nearly 50% heat-induced hemolysis compared to the standard acetylsalicylic acid (42%). Besides, all the tested doses (200, 400, and 600 mg/kg bw) of the crude extract showed significant (P < .05) analgesic and antidiarrheal effects.

Conclusion: The current findings endorsed the health benefits of V. vinifera by revealing potent antioxidant, anti-inflammatory, analgesic, and antidiarrheal effects. Nevertheless, further in-depth analysis of the plant's chemical constituents and pharmacological effects on health is warranted for novel drug discovery from V. vinifera.

Background: As a worldwide pandemic, metabolic syndrome (MetS) is related with high disease burden. The emergence of multiple chronic diseases can be attributed to unfavorable dietary and lifestyle choices made by individuals, with hyperinsulinemia and insulin resistance as the underlying causes. Current study sought to assess the relationship between the Empirical Dietary Index for Hyperinsulinemia (EDIH) and the Empirical Lifestyle Index for Hyperinsulinemia (ELIH) and MetS risk factors.

Methods: This cross-sectional study involved 339 individuals between the ages of 20 and 50, who were either obese or overweight, and were recruited from Tabriz, Iran. In this study, a validated semi-quantitative Food Frequency Questionnaire (FFQ) with 168 questions was used to assess individuals' food consumption. Blood tests were performed to assess total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), triglyceride (TG) levels, as well as blood glucose and insulin levels.

Results: After multivariable adjustment, among tertiles of EDIH, systolic blood pressure (SBP) and TG were significantly different. Also, SBP, diastolic blood pressure (DBP), and HDL-C significantly differed across tertiles of ELIH. In multivariate-adjusted models, individuals classified in the highest tertile of EDIH demonstrated elevated ORs in relation to FBG levels [OR: 1.035 (1.004-1.068; P < .05)], and the second tertile of ELIH was inversely associated with SBP [OR: 0.966 (0.935-0.999; P < .05)], DBP [OR: 0.972 (0.948-0.997; P < .05)], TG in the model I [OR: 0.991 (0.983-0.999; P < .05)], and model II [OR: 0.991 (0.983-0.999; P < .05)].

Conclusion: Considering the findings of our study, higher insulinemic dietary potential, indicated by EDIH, can be related to higher odds of FBG and decreased odds of TG as risk factors of MetS. Furthermore, our findings suggest that individuals with a higher ELIH may potentially exhibit lower SBP and DBP levels. Nevertheless, further experimental and long-term investigations are necessary to fully comprehend this association.