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Evaluation of serum lipid and lipoprotein levels in normal Chinese. The influence of dietary habit, body weight, exercise and a familial record of coronary heart disease.

The effects of dietary habit, body weight, physical activity and a familial record of coronary heart disease on serum lipid and lipoprotein levels in Chinese were examined. Increased dietary preference for animal meat products was associated with increased serum cholesterol and beta-lipoprotein levels. Increased carbohydrate intake and overweight were associated with increased serum triglyceride and pre-beta-lipoprotein levels. A familial record of coronary heart disease was associated with increased serum total lipid and pre-beta-lipoprotein levels. Based on these results, the factors which influence the serum lipid and lipoprotein concentrations in Chinese are probably similar to those in other ethnic groups.

Adult

Dietary habits relating to 'wasting marmoset syndrome' (WMS).

The syndrome is a condition of poor weight gain and weakness. Changed eating habits of animals suffering from it lead to consumption of a poorly-balanced diet. By softening the diet and avoiding less nutritious foods, the eating habits can be improved and the syndrome halted. Particular attention should be paid to the palatibility of high-protein foods when weaning marmosets.

Animals

The dietary fibre theory and bile salt pattern in Nigerians.

The results of bile analysis showed differences in the bile salt pattern of Caucasians and Nigerians, whose dietary habits differ mainly in dietary fibre composition. The Nigerian bile appears to contain less deoxycholate, but more cholate and a larger total pool of bile salts. These findings would seem to lend biochemical support for the epidemiological evidence concerning the uncommon occurrence of cholesterol gallstones and large bowel cancer in Nigeria as, indeed, in the less economically developed contries, where the dietary habits have not undergone comparable revolutionary changes of Western civilization, which have removed cellulose fibre from the diet in the process of industrial refinery.

Adult

The relationship between food intake and outdoor temperature in a longitudinal study: a public health perspective in the context of global warming.

BACKGROUND: Climate change affects human health and nutrition. Rising temperatures may significantly impact diets, but research on their influence on dietary habits in large populations remains limited. OBJECTIVES: We aimed to study the link between outdoor temperature and energy-adjusted food consumption across profiles in a longitudinal study. METHODS: This study included 100,851 participants from the NutriNet-Santé study (2009-2023) with 1,716,046 24-h dietary records linked to daily maximum outdoor temperature at the residence, from the nearest Météo-France station. Associations were analyzed using linear mixed models with interactions tested for sex and 6 socioeconomic profiles (employees, privileged, intermediate, young, disadvantaged, and retirees) derived from clustering. RESULTS: Across all subgroups, higher outdoor temperature was associated with higher consumption of fruits, vegetables, processed meats, sweet products, water, alcoholic beverages, and sugar-sweetened beverages, whereas consumption of red meat, pulses, and dairy products decreased. From 25°C to 35°C, the increase in alcohol consumption with temperature was more pronounced in males {150 g/d [95% confidence interval (CI): 147 g/d, 153 g/d] to 166 g/d [95% CI: 162 g/d, 171 g/d], +11%} than in females [101 g/d (95% CI: 98 g/d, 103 g/d) to 107 g/d (95% CI: 104 g/d, 109 g/d), +6%]. Across socioeconomic profiles, changes shared similar directions, but some trends were more marked, notably for alcoholic beverages among employees (95% CI: 114 g/d, 130 g/d; +14%) and sugar-sweetened beverages in young (95% CI: 56 g/d, 72 g/d; +29%). Consumption of fruits increased more modestly in the young (95% CI: 227 g/d, 248 g/d; +9%) than in employees (95% CI: 194 g/d, 227 g/d; +17%). These changes, although variable in magnitude, were not accompanied by substantial modifications in energy intake or overall diet quality scores. CONCLUSIONS: These results emphasize the importance of targeted prevention messages when temperatures exceed 25°C, especially concerning alcoholic and sugar-sweetened beverages, and offer insight into potential long-term food consumption patterns (beyond seasonal changes) in the context of global warming.

Humans

[Treatment of hyperlipoproteinemia type IIa with a "prudent" diet and clofibrate (author's transl)].

14 previously untreated patients with hyperlipoproteinemia type IIa according to Fredrickson underwent a controlled clinical trial. The study was designed to clarify the effects of clofibrate on the bloodlipids. All patients were willing to cooperate. After leaving their usual dietary habits all of them were given for seven to ten days a "prudent" diet. This diet was rich in vitamins; it had a low caloric-content. 20% of the calories consisted of proteins, 35% of carbohydrates (sweets were omitted) and about 45% of fats with a PS-factor of about 2.2. After the initial dietary treatment all patients were given twice daily for 14 days 500 mg clofibrate. During the use of the "prudent" diet the serum-cholesterol-levels decreased in average with 14.8%. Compared to the values at the beginning of the trial the difference was statistically highly significant. The average-values of triglycerides, phosphatides and the relative percentage of HDL, LDL and VLDL remained unchanged. After the patients received clofibrate there was an additional decrease of the serum-cholesterol-values of 14.8%. The total decrease of the cholesterol-levels compared to the initial values amounted to 27.4%. Furthermore, there was a reduction of the phosphatids in the serum of 14.1% compared to the initial value and of 9.9% compared to the value after dietary treatment alone. Under the combined effects of a "prudent" diet with clofibrate the HDL increased significantly. It can be assumed that clofibrate reduces the serum-cholesterol-levels in cases of hyperlipoproteinemia by decreasing the LDL-fraction, which is rich in cholesterol, and by increasing the HDL-fraction.

Adult

Some characteristics of Mozambican Shangaans with primary hepatocellular cancer.

Certain characteristics of 328 Mozambican male Shangaans with primary hepatocellular cancer (PHC) have been compared with those of 163 Shangaan men with hepatomegaly from causes other than PHC and with those of 122 Black Southern African men with the same tumour but who belonged to tribes other than the Shangaan. Shangaans with PHC were significantly younger than non-Shangaans with the tumour (mean age 33,4 cf. 40,0 years; Pless than 0,001). They also had a significantly higher positivity rate of alpha-fetoprotein by immunodiffusion (71,4%) than the non-Shangaans (16%), although in other respects the tumours appeared to be similar. Cirrhosis of the non-tumorous part of the liver was present at necropsy in 62% of the Shangaans and in 66% of the non-Shangaans. The hepatitis B (surface) antigen (HBsAg) was detected in the serum of 60% of the Shangaans with PHC compared with only 9% of the controls. The antigen was present in 53,4% of the non-Shangaans with PHC (the difference between this fifure and that in the Shangaans was not significant). HBsAg was detected in the serum of 64% of the Shangaans with PHC and cirrhosis, but also in 74% of those with the tumour without associated cirrhosis. The possible role of the hepatitis B verus in the aetiology of PHC is considered in the light both of these findings and of the possibility that the frequency with which the tumour is associated with cirrhosis may be decreasing in Shangaans. Some of the dietary habits of the Shangaans with PHC were compared with those of the controls. Virtually all the patients with PHC, but also almost all the controls, ate groundnuts in large quantities from an early age, as well as cashew nuts in smaller amounts. Cycad pips, mopani leaves and pods, mopani worms and locusts were not eaten by significantly more of the Shangaans with PHC than the controls. The limitations of this type of dietary analysis are discussed.

Adolescent

Nutrition and longevity - diet in centenarians.

BACKGROUND: Nutrition plays a central role in the biological mechanisms that shape aging, health span, and longevity. Micronutrients—including vitamins, trace elements, and polyphenols—support genomic stability, mitochondrial integrity, and antioxidant defense, while dietary patterns rich in plant-based foods modulate inflammation, metabolic regulation, and epigenetic processes. Centenarian populations consuming Mediterranean, Okinawan, Nordic, and Nicoyan diets offer a natural model for understanding how nutrient-rich, minimally processed foods, moderate caloric intake, and balanced lifestyles interact with molecular pathways to extend functional life. MAIN BODY: This review synthesizes current evidence on how micronutrients influence DNA repair, oxidative stress reduction, and mitochondrial protection, particularly through the actions of vitamins C and E, niacin-dependent PARP activity, folate-mediated methylation, and metal cofactors involved in antioxidant enzymes. Plant-based diets rich in fiber and polyphenols enhance microbial diversity and promote beneficial taxa such as Akkermansia and Bifidobacterium, supporting gut barrier integrity and immune balance. Caloric restriction and intermittent fasting activate nutrient-sensing pathways, including AMPK and sirtuins, reduce mTOR activity, and stimulate autophagy, collectively improving cellular resilience. Findings from centenarian regions highlight the convergence of lifestyle, nutrition, and cultural practices that reduce systemic inflammation, maintain metabolic flexibility, and support healthy aging trajectories. CONCLUSIONS: Diet emerges as a decisive modifiable determinant of lifespan and health span. The convergence of molecular nutrition, microbiome composition, and traditional dietary habits underlies the exceptional longevity observed in centenarian populations. Future research should integrate nutrigenomics, metabolomics, and microbiome profiling to clarify causal mechanisms and guide precision nutrition strategies for aging societies.

Humans

Sustainable dietary recommendations for the Spanish population.

BACKGROUND/OBJECTIVES: The 2030 Agenda for Sustainable Development highlights the urgent need for a profound transformation in food production and consumption to enhance both sustainability and human health. The aim of this study is to provide both the general population and food system stakeholders with the most comprehensive and current information available on healthy and sustainable dietary patterns, in the form of culturally adapted food-based guidelines. METHODS: We performed a systematic review of the scientific evidence published since 2019 on the association between main food groups consumption and the risk of developing chronic diseases and premature mortality to update the information provided by the Dietary Guidelines for Americans 2020-2025, which summarized previous evidence. With this information, we updated the servings recommended in the former dietary guidelines for Spain. Then, we considered the recommendations of the EAT-Lancet Commission for healthy diets within planetary boundaries, specific dietary habits and food production in Spain, and adjusted the servings per each group to consider these characteristics. RESULTS: A minimum intake of 5 servings of vegetables and fruits per day is recommended, which may be distributed in at least 3 servings of vegetables per day, and 2-3 servings of fruits per day. Cereal consumption is set at 3-6 servings per day, adjusted to individual energy needs and prioritizing whole grains, no more than 4 servings per day are advised in cases of caloric restriction. Plant-based foods are recommended as the primary protein source, with legumes incorporated into at least one main daily meal and consumed at a frequency of at least 4 servings per week, ideally up to daily. Nut consumption should reach at least 3 servings per week, up to one serving per day, choosing those without added salt, fats or sugar. The remaining protein portions may include fish (≥3 servings/week, prioritizing oily fish and low-impact species), eggs (up to 4/week), dairy (up to 3/day, with low-sugar and low-salt options), and meat (up to 3/week, emphasizing poultry and rabbit, and minimizing processed meats). Daily consumption of olive oil at main meals is recommended. CONCLUSIONS: The proposed Sustainable Dietary Recommendations can help improve the health and well-being of the Spanish population, while reducing the environmental impact.

Humans

Hepatocellular carcinoma in the Malaysian Orang Asli.

Necropsies were performed on 285 consecutively unclaimed Orang Asli bodies from Gombak Orang Asli Hospital during an eight-year period from May 1967 to April 1975. Of the 25 malignant neoplasms, hepatocellular carcinoma was by far the commonest (36%). The nine patients with this neoplasm had coexistant macronodular cirrhosis. There were 20 cases of cirrhosis; 45% of these had coexistant hepatocellular carcinoma. The 53,000 Orang Aslis living in West Malaysia comprise three tribes, the Negrito, Senoi, and Melayu Asli (Proto Malays). The Sinoi appear to have a high predilection for liver cancer, all our nine cases occurring in this group. These aboriginal people live in the jungles where they practice shifting cultivation and maintain their own dietary and social customs. Detailed studies of their dietary habits may provide a clue to the etiology of liver cancer in these people.

Adult

Chemical composition of ultracentrifugal fractions in different patterns of human atheroslcerosis.

The chemical composition of ultracentrifugal fractions of VLDL (d less than 1006), LDL (d 1006-1063) and HDL (d less than 1063) has been studied in males affected by atherosclerosis of different vascular beds. Thirty-seven subjects affected by post-infarction cardiopathy (M.I.) showed significantly higher values of total-C, VLDL-C and LDL-C when compared to 52 controls. Twenty-three patients affected by non-occlusive ischaemic heart disease (I.H.D.) showed higher values than controls of total-C, VLCL-C, LDL-C, total TG, VLDL-TG, and GDL-TG. Twenty-three patients with atherosclerosis of the inferior limbs (P.A.) were characterized by increased levels of total-TG, VLDL-TG, VLDL-C, HDL-C. A group of patients who had suffered a stroke from cerebro-vascular disease (C.V.D.) did not show any significant difference from controls. In the M.I. group, 56% of the patients had a high level of C-VLDL. Patients with I.H.D. were characterized mostly by an increase in C-LDL, Patients with P.A. showed the highest values of total -TG, VLDL-TG and LDL-TG. Some of the observed differences are probably due to different metabolic backgrounds. Some other differences may be due to variations in dietary habits after heart infarction. Patients with levels of plasma cholesterol and triglyceride beyond the 90th percentile of the normal group showed many abnormalities in the chemical composition of their lipoproteins. It is noteworthy that increased amounts of cholesterol may collect in lipoprotein classes different from LDL while increased amounts of triglyceride may collect in classes different from VLDL.

Adult

A Qualitative Analysis of Cancer Survivors' Experience in a Time-Restricted Eating vs Control Clinical Trial to Address Cancer-Related Fatigue.

PURPOSE: To describe cancer survivors' lived experiences in a clinical trial that tested an individualized nutrition counseling with or without time-restricted eating to address cancer-related fatigue. METHODS: The Fatigue REDuction After cancer study was a two-arm, randomized controlled trial. Participants were adult cancer survivors who were 2 months to 2 years post-treatment. All participants received individualized nutrition counseling; those in the time-restricted eating group self-selected a consistent 10-hour eating window for 12 weeks. After the study, semi-structured exit interviews were conducted to gauge participants' experiences in the trial. Interviews were transcribed and two independent coders thematically analyzed the interviews using inductive and deductive coding. NVivo software was used for data organization and analysis. RESULTS: Participants (n = 24; TRE = 11; Control = 13) were 55 ± 13 years old, 75% were female, and they had a variety of cancer types. The majority of participants found that being in the study helped them to set and achieve lifestyle goals and would therefore recommend the study to others. Participants in the time-restricted eating group noted that time-restricted eating helped them set a better routine, providing a positive sense of control. However, some noted difficulty switching to a 14-hour fasting schedule, as it can interfere with their regular routine or employment schedules. Many participants noted they were happy that cancer-related fatigue was gaining more attention, hoping to find solutions for persistent cancer-related fatigue. CONCLUSION: The majority of participants found the study useful and, regardless of their group assignment or the intervention's impact on their fatigue, found the study helped them to gain better control of their dietary habits.

Humans

Effect of vitamin E on serum cholesterol and triglycerides in hyperlipidemic patients treated with diet and clofibrate.

Vitamin E in conventional therapeutic doses (400 mg/day) was given to 17 patients with hyperlipidemia on long-term treatment with diets enriched in polyunsaturated fatty acids and with clofibrate. The effect of this treatment on total serum cholesterol and on serum triglycerides was studied. To avoid influences of other factors (especially changes in dietary habits) the investigation was performed giving the patients tocopherol and placebo randomly, double blind and cross-over. No significant effect of vitamin E on total serum cholesterol or on serum triglycerides was seen.

Adult

Trace elements in man.

It is likely that most, if not all, of the elements found to be essential in animals will be shown to be so for man, and the clinical picture produced by deficiency of the elements in the human patient will differ little from that seen in the animal, although this has been established for only five elements (I, Fe, Cu, Co and Zn). However, the link between lack of a given element in the soil and a human patient is far less direct and much more complex than that met with in the animal grazing on deficient pastures, except in isolated primitive communitis. Zn is the most protean of the trace elements and has been chosen to illustrate this in human practice. Excesses of essential elements (both trace and major) give rise to toxic effects and the importance of a proper balance especially of the transitional elements in the human diet is discussed with special reference to Cu, Zn and Fe. Certain non-essential trace elements are individual and community hazards: Cd, Pb and Hg are the principal offenders for humans. Mankind is now largely dependent on grassland products, cereals and livestock with increasing dominance of the former in human nutrition. This has reduced the bioavailability of trace elements so that study of trace metals, especially Zn and Cu, in skeletal and dental remains at human burial and occupation sites should prove useful in assessing the consequences of this striking change in dietary habits.

Biological Evolution

Resistome and microbiome-immune interactions in an Eastern European population with high antibiotic use.

The gut microbiome influences host health, affecting gastrointestinal, metabolic, immune, cardiovascular, and neurological functions. A balanced microbiome is associated with favorable health outcomes. However, excessive antibiotic use and dietary habits can disrupt this ecosystem, leading to dysbiosis and affecting body homeostasis. This first comprehensive metagenomic analysis of the gut microbiome in a healthy Romanian cohort, a population underrepresented in microbiome studies and characterized by high antibiotic consumption, addresses a gap in current microbiome research. We report an enrichment of Enterobacteriaceae although overall composition is more comparable to other European than non-European cohorts. Community configurations align with established enterotype patterns, and our analysis provides insight into their relationship with within-phylum diversity. The analysis of antimicrobial resistance provides insight into the prevalence of resistance genes within this reservoir. We specifically report the presence of cfr(E), a Clostridioides difficile gene, and tet(X5), a variant from the ubiquitous tet family, genes not previously reported in healthy European populations. Integration with data from the European Centre for Disease Prevention and Control links the overall prevalence of resistance genes in this reservoir to antibiotic classes with higher community consumption in this population, notably beta-lactams and quinolones, highlighting potential targets for antibiotic stewardship programs. Finally, we investigate the relationship between the microbial profile and the systemic immune responses, inferred from correlations with in vitro cytokine production. Notably, we identify potential immune-priming roles for Collinsella, Flavonifractor, and Bifidobacterium species.IMPORTANCEThis first comprehensive study of the healthy gut microbiome in a Romanian cohort addresses a gap in current microbiome research, dominated by data sets from a limited number of regions. It sets a baseline for the microbiome and resistome composition of this population, and, while definitions of "healthy" microbiomes, or baseline resistomes, remain lacking, such study helps contextualize future studies and support the monitoring of dynamics. The Enterobacteriaceae abundance suggests a microbiome composition potentially influenced by antimicrobial consumption, a relevant pattern in a region with a high burden of nosocomial infections. In addition, the prevalence of antimicrobial resistance genes and the concordance with commonly used antibiotics in the community reinforce the need to address antibiotic use in public health strategies. Although gut microbiome-immunity relationships remain incompletely understood, our findings support a role for microbiome composition in immune-related traits and provide a valuable resource for future studies.

Humans

Exploring the potential of genetic analysis in historical blood spots for patients with iodine-deficient goiter and thyroid carcinomas in Switzerland and Germany (1929-1989).

Iodine deficiency-induced goiter continues to be a global public health concern, with varying manifestations based on geography, patient's age, and sex. To gain insights into clinical occurrences, a retrospective study analyzed medical records from patients with iodine deficiency-induced goiter or thyroid cancer who underwent surgery at the Community Hospital in Riehen, Switzerland, between 1929 and 1989. Despite today's adequate iodine supplementation, a significant risk for iodine-independent goiter remains in Switzerland, suggesting that genetic factors, among others, might be involved. Thus, a pilot study exploring the feasibility of genetic analysis of blood spots from these medical records was conducted to investigate and enhance the understanding of goiter development, potentially identify genetic variations, and explore the influence of dietary habits and other environmental stimuli on the disease.Blood prints from goiter patients' enlarged organs were collected per decade from medical records. These prints had been made by pressing, drawing, or tracing (i.e., pressed and drawn) the removed organs onto paper sheets. DNA analysis revealed that its yields varied more between the prints than between years. A considerable proportion of the samples exhibited substantial DNA degradation unrelated to sample collection time and DNA mixtures of different contributors. Thus, each goiter imprint must be individually evaluated and cannot be used to predict the success rate of genetic analysis in general. Collecting a large sample or the entire blood ablation for genetic analysis is recommended to mitigate potential insufficient DNA quantities. Researchers should also consider degradation and external biological compounds' impact on the genetic analysis of interest, with the dominant contributor anticipated to originate from the patient's blood.

Humans

Adaptive Evolution of the PFK Gene Family in Chinese Longsnout Catfish, Leiocassis longirostris.

The Chinese longsnout catfish is a typical carnivorous fish with a relatively weak ability to utilize glucose. However, the genomic basis for its glucose metabolic adaptation remains unclear. In this study, we used comparative genomics methods to systematically analyze the evolutionary characteristics of glucose metabolism-related genes in the Chinese longsnout catfish, focusing on gene family evolution, patterns of expansion and contraction, and selective pressures. The results indicate that glucose metabolism-related genes have undergone significant reshaping during evolution. Genes involved in glucose digestion, absorption, and insulin signaling pathways demonstrate a tendency toward contraction, while those associated with protein and lipid metabolism exhibit expansion. This pattern is consistent with the species' long-term adaptation to a high-protein, high-fat diet. Comparative analysis further revealed that, compared to fish with different dietary habits, certain key genes involved in glycolysis in the Chinese longsnout catfish exhibit a reduction in copy number. Molecular evolutionary analysis showed that key genes involved in glycolysis and gluconeogenesis (including hexokinase 2 (hk2), phosphofructokinase, muscle/platelet (pfkm/p)) exhibit signs of accelerated evolution or positive selection. Notably, the PFK gene family exhibits complex evolutionary characteristics resulting from the combined effects of gene contraction, rapid evolution, and positive selection. In summary, this study reveals the genomic evolutionary basis for the glucose metabolic adaptation of the Chinese longsnout catfish and identifies the PFK gene family as a key candidate for elucidating its unique glucose metabolic characteristics.

Leiocassis longirostris

[Colon diverticulosis and complicating diverticulitis (author's transl)].

Dietary habits in the civilised countries of the West with foods low in bulk and cellulose are blamed as causes of the increase in colon diverticulosis and the complicating diverticulitis in recent times. Of all sections of the colon, the sigmoid is most frequently involved, older patients above the 5th decade being principally affected. While uncomplicated diverticulosis of the colon usually remains symptomless, complicated diverticulitis often shows very uncharacteristic symptoms. For prophylaxis and the treatment of slight complaints, conservative treatment with administration of bulky foods (bran etc.) is indicated. Threatening hemorrhages and perforative peritonitis demand emergency operations. In closed abscess formation, internal or external fistulae and incipient scarring stenosis with imminent ileus, resection of the affected part of the intestine is indicated.

Aged