Vitamin K has been related to cardiovascular disease and cancer risk. However, data on total mortality are scarce. The aim of the present study was to assess the association between the dietary ...intake of different types of vitamin K and mortality in a Mediterranean population at high cardiovascular disease risk. A prospective cohort analysis was conducted in 7216 participants from the PREDIMED (Prevención con Dieta Mediterránea) study (median follow-up of 4.8 y). Energy and nutrient intakes were evaluated using a validated 137-item food frequency questionnaire. Dietary vitamin K intake was calculated annually using the USDA food composition database and other published sources. Deaths were ascertained by an end-point adjudication committee unaware of the dietary habits of participants after they had reviewed medical records and linked up to the National Death Index. Cox proportional hazard models were fitted to assess the RR of mortality. Energy-adjusted baseline dietary phylloquinone intake was inversely associated with a significantly reduced risk of cancer and all-cause mortality after controlling for potential confounders (HR: 0.54; 95% CI: 0.30, 0.96; and HR: 0.64; 95% CI: 0.45, 0.90, respectively). In longitudinal assessments, individuals who increased their intake of phylloquinone or menaquinone during follow-up had a lower risk of cancer (HR: 0.64; 95% CI: 0.43, 0.95; and HR: 0.41; 95% CI: 0.26, 0.64, respectively) and all-cause mortality (HR: 0.57; 95% CI: 0.44, 0.73; and HR: 0.55; 95% CI: 0.42, 0.73, respectively) than individuals who decreased or did not change their intake. Also, individuals who increased their intake of dietary phylloquinone had a lower risk of cardiovascular mortality risk (HR: 0.52; 95% CI: 0.31, 0.86). However, no association between changes in menaquinone intake and cardiovascular mortality was observed (HR: 0.76; 95% CI: 0.44, 1.29). An increase in dietary intake of vitamin K is associated with a reduced risk of cardiovascular, cancer, or all-cause mortality in a Mediterranean population at high cardiovascular disease risk. This trial was registered at http://www.controlled-trials.com as ISRCTN35739639.
Incorporating pendant silicon functionalities into phosphine ligands enables to profit from the strong σ‐electron donor and trans influence properties of Si while enhancing the coordination ability ...of the ligand. Herein, we show that the introduction of bulky sigma donor substituents on the Si atoms and modulation of the number of Si–H functional groups in a series of phosphinobenzylsilanes allow either the stabilization of rare highly unsaturated 14‐electron rhodium(III) and iridium(III) species devoid of agostic interactions or the access to mixed‐valence MI–MIII complexes. Our findings using isopropyl‐substituted silicon are markedly different from those obtained when employing the methyl‐substituted Si series.
A family of semirigid bifunctional silylphosphines bearing isopropyl substituents on Si demonstrate the versatility scope of the ligand framework allowing for example, access to rare highly unsaturated 14‐electron Rh and IrIII species devoid of agostic interactions and to mixed valence MI–MIII complexes.
Head and neck cancer is a growing worldwide public health problem, accounting for approximately 1,500,000 new cases and 500,000 deaths annually. Substance P (SP) is a peptide of the tachykinin ...family, which has roles related to a large number of physiological mechanisms in humans. The implications of SP in carcinogenesis have recently been reported through the stimulation of the neurokinin 1 receptor (NK1R), or directly, through the effects derived from the constitutive activation of NK1R. Consequently, SP/NK1R seems to play relevant roles in cancer, upregulating cell proliferation, cell migration and chronic inflammation, among other oncogenic actions. Furthermore, there is growing evidence pointing to a central role for SP in tumour progression, singularly so in laryngeal and oral squamous cell carcinomas. The current narrative review of the literature focuses on the relationship between the SP/NK1R system and chronic inflammation and cancer in the head-and-neck region. We described a role for SP/NK1R in the transition from chronic inflammation of the head and neck mucosa, to preneoplastic and neoplastic transformation and progression.
The increasing threat of multidrug-resistant microorganisms is a cause of worldwide concern. This motivates a necessity to discover new antimicrobial agents or new mechanisms for microorganism ...eradication, different from those currently used. Here, we report an effective antibacterial ceramic glaze that combines different bactericidal mechanisms. Specifically, the used methodology of the glaze results in glass-free edge crystallizations of feldspar structures at the ceramic surface. A combination of Rutherford backscattering spectroscopy, scanning electron microscopy, and Raman microscopy is used to determine the chemical elements and crystallizations at the ceramic surface. Moreover, Kelvin probe force microscopy demonstrates that the presence of glass-free edges in feldspar needle crystals (semiconductor phase) on a glass matrix (insulator phase) promotes the formation of semiconductor–insulator interface barriers. These barriers act as reservoirs of electric charges of ∼1.5 V, producing a discharge exceeding the microorganism membrane breakdown value (up to 0.5 V). Furthermore, the surface crystallizations account for the formation of a microroughness that limits biofilm formation. Both factors result in high antibacterial activity in the range of R > 4 for Escherichia coli and Staphylococcus aureus. This approach opens new possibilities to attain bactericidal surfaces and to understand the role of physical interaction as a main antimicrobial mechanism.
Purpose
The possible effects of dairy consumption on diabetes prevention remain controversial. The aim of this study was to investigate the association between the dairy consumption and type 2 ...diabetes (T2D) risk in an elderly Mediterranean population at high cardiovascular risk.
Methods
We prospectively followed 3,454 non-diabetic individuals from the PREDIMED study. Dairy consumption was assessed at baseline and yearly using food frequency questionnaires and categorized into total, low-fat, whole-fat, and subgroups: milk, yogurt, cheeses, fermented dairy, concentrated full fat, and processed dairy. Hazard ratios (HRs) were calculated using Cox proportional hazards regression models.
Results
During a median follow-up of 4.1 years, we documented 270 incident T2D cases. After multivariate adjustment, total dairy product consumption was inversely associated with T2D risk 0.68 (95 % CI 0.47–0.98);
P
-trend = .040. This association appeared to be mainly attributed to low-fat dairy; the multivariate HRs (95 % CIs) comparing the highest versus the lowest tertile consumption were 0.65 (0.45–0.94) for low-fat dairy products and 0.67 (0.46–0.95) for low-fat milk (both
P
-trend <.05). Total yogurt consumption was associated with a lower T2D risk HR 0.60 (0.42–0.86);
P
-trend = .002. An increased consumption of total low-fat dairy and total yogurt during the follow-up was inversely associated with T2D; HRs were 0.50 (0.29–0.85), 0.44 (0.26–0.75), and 0.55 (0.33–0.93), respectively. Substituting one serving/day of a combination of biscuits and chocolate and whole grain biscuits and homemade pastries for one serving/day of yogurt was associated with a 40 and 45 % lower risk of T2D, respectively. No significant associations were found for the other dairy subgroups (cheese, concentrated full fat, and processed dairy products).
Conclusions
A healthy dietary pattern incorporating a high consumption of dairy products and particularly yogurt may be protective against T2D in older adults at high cardiovascular risk.
In recent years, numerous approaches have been developed to comprehend the molecular alterations underlying thyroid cancer (TC) oncogenesis and explore novel therapeutic strategies for TC. It is now ...well established that the neurokinin-1 receptor (NK-1R) is overexpressed in cancer cells and that NK-1R is essential for the viability of cancer cells. The binding of substance P (SP) to NK-1R in neoplastic cells plays a pivotal role in cancer progression by promoting neoplastic cell growth, protecting tumor cells from apoptosis, triggering invasion and metastasis through the enhanced migration of cancer cells, and stimulating endothelial cell proliferation for tumor angiogenesis. Remarkably, all types of human TC (papillary, follicular, medullary, anaplastic), as well as metastatic lesions, exhibit the overexpression of SP and NK-1R compared to the normal thyroid gland. TC cells synthesize and release SP, which exerts its multiple functions through autocrine, paracrine, intracrine, and neuroendocrine processes, including the regulation of tumor burden. Consequently, the secretion of SP from TC results in increased SP levels in plasma, which are significantly higher in TC patients compared to controls. Additionally, NK-1R antagonists have demonstrated a dose-dependent antitumor action. They impair cancer cell proliferation on one side and induce apoptosis of tumor cells on the other side. Furthermore, it has been demonstrated that NK-1R antagonists inhibit neoplastic cell migration, thereby impairing both invasiveness and metastatic abilities, as well as angiogenesis. Given the consistent overexpression of NK-1R in all types of TC, targeting this receptor represents a promising therapeutic approach for TC. Therefore, NK-1R antagonists, such as the drug aprepitant, may represent novel drugs for TC treatment.
To examine associations between intake of simple sugars and cancer incidence, cancer mortality, and total mortality in a prospective cohort study based on the PREDIMED trial conducted from 2003 to ...2010.
Participants were older individuals at high cardiovascular risk. Exposures were total sugar, glucose and fructose from solid or liquid sources, and fructose from fruit and 100% fruit juice. Cancer incidence was the primary outcome; cancer mortality and all-cause mortality were secondary outcomes. Multivariable-adjusted, time-dependent Cox proportional hazard models were used.
Of 7447 individuals enrolled, 7056 (94.7%) were included (57.6% women, aged 67.0 ± 6.2 years). 534 incident cancers with 152 cancer deaths and 409 all-cause deaths were recorded after a median follow-up of 6 years. Intake of simple sugars in solid form was unrelated to outcomes. Higher cancer incidence was found per 5 g/day increase in intake of liquid sugars, with multivariable-adjusted HR of 1.08 (95% CI, 1.03–1.13) for total liquid sugar, 1.19 (95% CI, 1.07–1.31) for liquid glucose, 1.14 (95% CI, 1.05–1.23) for liquid fructose, and 1.39 (95% CI, 1.10–1.74) for fructose from fruit juice. Cancer and all-cause mortality increased to a similar extent with intake of all sugars in liquid form. In categorical models, cancer risk was dose-related for all liquid sugars.
Simple sugar intake in drinks and fruit juice was associated with an increased risk of overall cancer incidence and mortality and all-cause mortality. This suggests that sugary beverages are a modifiable risk factor for cancer and all-cause mortality.
Background
The impact of atrial fibrillation (AF) on mortality of patients with heart failure (HF) has been established. Nevertheless, the effect of some factors in mortality, such as digoxin or ...diuretic use, remains controversial. This study aims at assessing mortality in community‐dwelling patients with stable HF related to AF and determines the relation of these drugs with prognosis.
Materials and methods
Community‐based cohort study of HF patients diagnosed between January 2010 and December 2014 attended at any one of the 279 primary healthcare centres of the Catalan Institute of Health (Spain). Follow‐up ended on December 31, 2015, and the main outcome was mortality for all causes. The effect of clinical and demographic characteristics on survival was assessed by Cox proportional hazards model.
Results
A total of 13 334 HF patients were included. Mean age was 78.7 years (SD 10.1), and 36.8% had AF. Mean follow‐up was 26.9 months (SD 14.0). At the end of the study, 25.8% patients had died, and mortality was higher when AF was present (28.8% vs 24.1%, P < 0.001, respectively). Multivariate model confirmed the higher risk of death for AF patients (HR 1.10 95%, CI 1.02‐1.19). Digoxin and diuretics were not associated with higher mortality in AF patients (HR 1.04 95% CI 0.92‐1.18 and HR 1.04 95% CI 0.85‐1.26, respectively).
Conclusions
An excess of mortality in HF patients with AF was found in a large retrospective community‐based cohort. Digoxin and diuretics did not affect mortality in HF patients with AF.
The PREDIMED (PREvención con DIeta MEDiterránea) is a multicentre trial analyzed as a prospective cohort study. A total of 7122 participants (aged 55–80 years) at high risk of cardiovascular disease ...in the PREDIMED trial were recruited in 11 centres in Spain. The prevalence of subjects with type 2 diabetes was 50%. Our objective was to determine the contribution of lifestyle factors to the development of peripheral artery disease (PAD).
Incident clinical PAD in relation to a healthy lifestyle 5-point score defined as adherence to a Mediterranean diet (MedDiet), moderate alcohol intake, regular physical activity, normal weight (BMI<25) and non-smoking was measured.
Eighty-seven incident PAD cases were diagnosed during a median follow-up of 4.8 years. Compared with participants with 0 or 1 healthy lifestyle factor, the multivariable hazard ratio for PAD was 0.65 (95% confidence interval (CI) 0.37 to 1.14) for 2 factors, and 0.40 (0.22–0.72) for 3 or more. Moderate alcohol consumption, non-smoking, physical activity and following a MedDiet were significantly inversely associated with PAD whereas no association was found for normal weight (BMI<25 kg/m2). PAD risk monotonically decreased with an increasing number of lifestyle factors, and the greatest reduction was found for a score combining moderate alcohol consumption, MedDiet and physical activity or non-smoking. The multivariable-adjusted population attributable risk percent for the combination of these 4 factors was 80.5% (95% CI: 21.3%–95.1%).
Our results demonstrate that a simple healthy lifestyle score is associated with a substantially reduced risk of PAD in a high cardiovascular risk population with a high prevalence (50%) of subjects with type 2 diabetes.
•An increasing healthy lifestyle score was associated with a decreasing risk of PAD.•Factors include non-smoking, physical activity, MedDiet and moderate alcohol use.•Around 80% of new cases of PAD might have been prevented.•Our finding should be included in health promotion messages to the general public.
Purpose
Cardiovascular disease remains the global leading cause of death. We evaluated at baseline the association between the adherence to eight a priori high-quality dietary scores and the ...prevalence of individual and clustered cardiovascular risk factors (CVRF) in the PREDIMED-Plus cohort.
Methods
All PREDIMED-Plus participants (6874 men and women aged 55–75 years, with overweight/obesity and metabolic syndrome) were assessed. The prevalence of 4 CVRF (hypertension, obesity, diabetes, and dyslipidaemia), using standard diagnoses criteria, were considered as outcomes. The adherence to eight a priori-defined dietary indexes was calculated. Multivariable models were fitted to estimate differences in mean values of factors and prevalence ratios for individual and clustered CVRF.
Results
Highest conformity to any dietary pattern did not show inverse associations with hypertension. The modified Mediterranean Diet Score (PR = 0.95; 95% CI 0.90–0.99), Mediterranean Diet Adherence Score (MEDAS) (PR = 0.94; 95% CI 0.89–0.98), the pro-vegetarian dietary pattern (PR = 0.95; 95% CI 0.90–0.99) and the Alternate Healthy Eating Index 2010 (PR = 0.92; 95% CI 0.87–0.96) were inversely associated with prevalence of obesity. We identified significant inverse trend among participants who better adhered to the MEDAS and the Prime Diet Quality Score (PDQS) in the mean number of CVRF across categories of adherence. Better adherence to several high-quality dietary indexes was associated with better blood lipid profiles and anthropometric measures.
Conclusions
Highest adherence to dietary quality indexes, especially Mediterranean-style and PDQS scores, showed marginal associations with lower prevalence of individual and clustered CVRF among elderly adults with metabolic syndrome at high risk of cardiovascular disease
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