Essential Elements Research Articles

Copper and Melanoma Risk: Results from NHANES 2007-2018 and Mendelian Randomization Analyses.

Copper is an essential trace element obtained from food. There is a paucity of observational or prospective studies that have investigated the relationship between copper and melanoma risk. Copper serves as a cofactor for pivotal enzymes involved in mitochondrial respiration, antioxidant defense, and neurotransmitter synthesis. Undoubtedly, copper plays an indispensable role in the initiation and progression of tumors, particularly melanoma; however, further investigations are warranted to elucidate the underlying mechanisms linking copper and melanoma risk. Given the availability of dietary copper and serum copper data in the NHANES database, we conducted an investigation into the association between dietary copper intake and serum copper levels with melanoma risk. We enrolled 26,401 individuals with dietary copper data in the 2007-2018 NHANES database. To mitigate confounding variables, a propensity score matching (PSM) was performed. To assess the association between dietary copper intake and melanoma risk, we employed a multivariate logistic regression analysis before and after PSM. The restricted cubic spline analysis was utilized to determine whether there is a non-linear relationship between dietary copper intake and melanoma risk, with subgroup analysis conducted to determine beneficiaries. Then, those with blood copper data from the enrolled population with dietary copper intake were screened out, and subsequently, multivariate logistic regression models were subsequently constructed to investigate the association between serum copper levels and melanoma risk after PSM. Mendelian analysis was further utilized to validate the results of the NHANES database using serum copper as the exposure factor and melanoma as the outcome variable. The study found that melanoma risk was associated with dietary copper intake before and after PSM, demonstrated by multiple logistic regression. The relationship between dietary copper intake and melanoma risk was non-linear, with a reduced risk observed above approximately 2.5mg/day, as shown by the RCS. The evidence suggests that an increased intake of copper is linked to a decreased risk of melanoma. To clarify the mechanism behind the increased risk of melanoma due to higher dietary copper intake, we analyzed the population data from the NHANES database on serum copper and dietary copper intake. Our results indicated that there is no causal relationship between serum copper and melanoma risk. Mendelian randomization analysis of multi-database data sources confirmed the conclusion of the NHANES database analysis. Dietary copper is a protective factor against melanoma, and serum copper or blood copper is not associated with melanoma risk. This suggests that serum or blood copper is not responsible for the protective effect of dietary copper intake on melanoma risk, and the mechanisms need to be further investigated.

Optimized shared energy storage in a peer-to-peer energy trading market: Two-stage strategic model regards bargaining and evolutionary game theory

With the increasing demand of users for distributed energy storage (ES) resources and the emerging development of peer to peer (P2P) transaction technology, shared energy storage (SES) has great potential to contribute into new business models of demand-side ES. In order to compromise essential elements like safety, stability and efficiency of P2P trading, as well as to improve the utilization rate of demand-side ES, this paper devotes to construct a P2P transaction framework based on a partially decentralized topology and proposes a two-stage trading optimization strategy of SES in a P2P market, considering the equilibrium state of supply and demand flow. In the first stage, this paper simultaneously balances the interests of buyers and sellers and brings the carbon trading mechanism into the transaction process. The interaction of interests of bilateral parties with consideration of carbon trading mechanism has been investigated, and a SES capacity sharing model is, then, established based on the bargaining game theory. In the second stage, a unique pricing mechanism for SES leasing fee is designed based on a multi-strategy evolutionary game model, considering bounded rational decision-making for SES operators and communities. Finally, numerical simulation verified the feasibility and superiority of the proposed P2P trading strategy of SES.

Zinc content in cow milk and its correlation with amino acid composition

Zinc (Zn) is one of the essential elements for all life forms on Earth. Investigation of zinc levels in milk is a topical issue for dairy farming and processing industry. The dynamics of zinc content in milk of cows during 6 months is presented. Milk was obtained from Black-and-White cows at the age of 3–4 years (2–3rd lactation). The strength and direction of correlations with the amino acid composition of milk were established. 132 milk samples from a breeding farm (Krasnodar Territory) were studied in this work. A random sample of 22 lactating cows was drawn from the dairy herd from January through July 2022 (excluding April). Atomic-adsorption analysis with electrothermal atomization, deuterium and Zeeman correction were used in order to accurately determine the level of zinc in milk. Correlations between amino acids and zinc in cow milk samples (in winter-spring-summer period) were obtained, as well as correlation coefficients (r) and coefficients of determination (r2) at certain levels of significance. The zinc content of milk varies greatly from month to month. Insignificant differences relative to January were established in May (higher by 1.54%), June (higher by 9.72%) and July (lower by 7.66%). Significant reliable differences were found in February – higher by 58.15% (p ˂ 0.001) – and in March – higher by 97.34% (p ˂ 0.001) relative to January. All obtained correlations of zinc with amino acids in milk are positive, e.g. for threonine in January r = 0.50 (r2 = 0.25, p = 0.02), in February r = 0.82 (r2 = 0.67, p ˂ 0.01), in March r = 0.25 (r2 = 0.06, p = 0.04), in May r = 0.35 (r2 = 0.12, p ˂ 0.01).

Lessons learnt during the workshop “Empowerment of citizens: fostering user engagement for innovative demand response for effective flexibility”

This open letter captures key insights and recommendations from five European projects—HESTIA, SENDER, ReDREAM, ACCEPT, and iFLEX—focused on consumer engagement in Demand Response (DR) initiatives. Highlighting diverse and effective engagement strategies, including co-creation activities and virtual home tours, the letter underscores project partners' commitment to tailored and impactful user engagement. Emphasising phased organisation, varied tools, and keyword utilisation aligned with engagement timelines, the projects recognize adaptability, motivation, and eligibility as essential elements in crafting engaging recruitment materials. Addressing diverse contexts, continuous assessment is pivotal for achieving co-creation and active participation. The insights contribute to the evolving energy transition landscape, offering practical guidelines for those implementing or contemplating DR engagement strategies.

Immanuel Kant: elucidations on education and moral development

This text seeks to present the contributions of the philosopher Immanuel Kant with regard to pedagogical practice and its relationship with the development of morality. These themes are found in his works: Foundations of the Metaphysics of Customs (1785), Critique of Practical Reason (1788) and On Pedagogy (1803). Based on these, the aim is to present some of the philosopher's points about the importance of instruction for the moral formation of the individual, based on the understanding that negative discipline and positive instruction are essential elements in this construction. For Kant, education must begin in childhood and be geared towards moral evolution, since it is not innate and must be cultivated. This morality, according to Kant, needs to be based exclusively on reason, since all humans are equally rational and all are subject to the same moral law. As a result, the action must be performed out of respect for the moral law, even if it is contrary to personal inclinations or brings harm to the agent himself. In order to be sure that your action is in accordance with the moral law, you need to reflect on the possibility of its universalization, in other words, whether it can be carried out by all human beings without harming anyone. In this sense, only morality based entirely on reason can preserve the dignity of human beings and promote their progress.

Visual Determination of Copper (II) Using a Biomass Sourced Carbon Quantum Dot (CQD) Ratiometric Fluorescent Probe

Accurate detection of copper ions is crucial since it is an essential trace element. Carbon quantum dots (CQDs) were prepared from apricot leaves using a hydrothermal method. These CQDs, which generated a reference signal, were combined with glutathione-bound gold nanoclusters (GSH-AuNCs) synthesized by the reduction of chloroauric acid to form a ratiometric fluorescent probe. The probe exhibited fluorescence emission at 450 nm and 568 nm. The determination of Cu(II) was performed through visual analysis of the color change and the intensity ratio (I 450/I 568) of the emission peaks. Orange fluorescent GSH-AuNCs responded to Cu(II) with fluorescence, and the blue fluorescent CQDs were chemically inert. The probes changed color from pink to purple to blue in response to different concentrations of Cu(II). The linear range of the fluorescence probe for Cu(II) was 0 to 120 µmol/L, and the limit of detection (LOD) was 0.65 µmol/L. This study has demonstrated that the probe provided good selectivity for detecting Cu(II) in water and has potential practical application.

Onset of double subduction controls plate motion reorganisation

Face-to-face double subduction systems, in which two oceanic plates subduct toward each other, are essential elements of plate tectonics. Two subduction zones in such systems are typically uneven in age and their spatially and temporally variable dynamics remain enigmatic. Here, with 2D numerical modelling, we demonstrate that the onset of the younger subduction zone strongly changes the dynamics of the older subduction zone. The waxing younger subduction may gradually absorb plate convergence from the older one, resulting in older subduction waning featured by the dramatic decrease in subduction rate and trench retreat. The dynamical transformation of subduction predominance alters the intraplate stress and mantle flow, regulating the relative motion among the three different plates. The process of waxing and waning of subduction zones controls plate motion reorganisation, providing a reference to interpret the past, present, and future evolution of several key double subduction regions found on the modern Earth.

The Marketing Systems Approach for Designing Effective Marketing Interfaces and a Circular Economy

In this article, we argue that Layton's Marketing Systems approach is important to tackle the triple-bottom-line (TBL) of economic, social, and environmental challenges holistically. We discuss how this system approach can contribute to designing effective marketing interfaces for a more sustainable circular economy (CE). Marketing has a legacy of understanding and increasing consumption, but it is also an essential element to drive toward a more sustainable society, as demonstrated by cases on eco-communities and sustainable food marketing systems. The article concludes by encouraging (Marketing) scholars to utilize Layton's work on multi-level systems to its fullest potential to address the pressing TBL challenge and contribute to the Sustainable Development Goal (SDG) missions in a holistic way.

The Nation and the State in Charles de Gaulle’s Political Thought

In De Gaulle’s thought, the nation and the state are inextricably linked, and while exercising power as President of the Fifth Republic, he almost obsessively strived for national unity. He fully accepted the Republican system of France and recognized revolutions as an indelible element of the national heritage. De Gaulle was convinced of the country’s potential to influence the fate of the world, to firmly defend its national interests, but also to be an advocate of universal values. The essential element of the new system for France proposed by De Gaulle in 1946 was the strengthening of the executive power and the key political position of the president of the Republic. The 1958 Constitution introduced a significant change regarding the election of the president by the electoral college, and de Gaulle’s concept of general election of the president was soon implemented.

Study of Angular Resolution Using Imaging Atmospheric Cherenkov Technique

Angular resolution is crucial for the detailed study of gamma-ray sources and current Cherenkov telescopes (e.g., HESS, MAGIC, and VERITAS) that operate below tens of TeV. Several gamma-ray sources with a photon energy larger than 100 TeV have been revealed by the LHAASO in recent years; the angular resolution of the LHAASO is around 0.3∘. A gamma-ray detector with an angular resolution of less than 0.1∘ operating beyond 100 TeV is needed to study the detailed morphology of ultra-high-energy gamma-ray sources further. The cost-effectiveness is crucial for such large-area detectors. In this paper, the impact of telescope aperture, field of view, pixel size, optical point spread function, and signal integration time window on angular resolution is studied. These results can provide essential elements for the design of telescope arrays.

Physical Exercise and Older People: Always a Happy Relationship? Four Qualitative Reflections to Deepen Understanding

In this paper, I recall reflections from and discussions with both older people who exercise actively and with personal trainers who specialise in working with older people to address two essential elements that should be clarified: First, what are we talking about when we discuss sport, physical exercise and physical activity, especially when we relate them to older people? Second, the benefits of exercise are known, but what are the margins and precautions that this group of people should consider, and even the damage that physical exercise can cause to them? Based on qualitative data that are taken from different ethnographic works, four areas are considered: What does it mean to train as a senior?; are injuries inevitable?; the dangers of having an athlete’s identity; and the hazards of body-image ideals. This work gives voice to older athletes and their coaches, and contributes to studies on physical activity, older people and wellbeing.

Current understanding of essential trace elements in intrahepatic cholestasis of pregnancy.

Trace elements are important components in the body and have fundamental roles in maintaining a healthy and balanced pregnancy process.Either deficiency or excess of trace elements, including selenium, iron, zinc, copper, and magnesium can lead to pregnancy complications. As a rare disorder during pregnancy of unknown aetiology, intrahepatic cholestasis of pregnancy (ICP) poses a significant risk to the fetus of perinatal mortality. ICP is a multifactorial complication of which the pathogenesis is still an enigma. Epidemiological studies have demonstrated the association of ICP with some trace elements. Evidence from retrospective studies in humans further revealed the possible contributing roles of trace elements in the pathogenesis of ICP. The published literature on the association of trace elements with ICP was reviewed. Recent advances in molecular biological techniques from animal studies have helped to elucidate the possible mechanisms by how these trace elements function in regulating oxidative reactions, inflammatory reactions and immune balance in the maternal-fetal interface, as well as the influence on hepato-intestinal circulation of bile acid. The scenario regarding the role of trace elements in the pathogenesis of ICP is still developing. The administration or depletion of these trace elements may have promising effects in alleviating the symptoms and improving the pregnancy outcomes of ICP.

Coupled carbon‑iron‑phosphorus cycling in the Rainbow hydrothermal vent field

Hydrothermal venting has been shown to play a role in the global biogeochemical cycles of three bio-essential elements: iron (Fe), carbon (C) and phosphorus (P). However, our insight into the coupled cycling of Fe and associated C and P in hydrothermal plumes as well as their long-term fate in the underlying sediments remains limited. We present a detailed study, tracing the biogeochemical pathways of hydrothermally sourced Fe and the associated C and P from a buoyant to a neutrally buoyant plume and to the underlying sediments. Combining chemical and micro(spectro)scopic methods, we characterize particulate and dissolved phases recovered from the water column and sediment at two sites: one located directly in the active Rainbow hydrothermal vent field at 36°N on the mid-Atlantic ridge (MAR) and one located 3 km NE of the active vents. Our results show that the precipitates in one of the largest hydrothermal plumes on the MAR consist of aggregates of Fe nanoparticles, comprising poorly-ordered Fe oxyhydroxides and polycrystalline Fe sulfides, coated with carbon that is likely of organic origin. The sediments underlying the hydrothermal plume show enrichments in organic C, Fe, P and vent-derived trace metals such as Cu that decrease with distance from active vents. The enrichment in organic C and persistence of apparently highly-reactive Fe phases after sediment burial may reflect enhanced preservation potential of both phases as a result of the formation of organic-mineral complexes. We further demonstrate that the scavenging of dissolved seawater phosphate (PO43−) by Fe nanoparticles is constrained to early stages of particle formation and sorption reactions in the buoyant hydrothermal plume and that P burial close to the vent field is driven by the deposition of the Fe nanoparticles. In the sediment, P is then efficiently retained through sink-switching from Fe-bound to more stable, authigenic apatite phases. As such, the sediments underlying the Rainbow vent seem to faithfully record coupled emission, scavenging and burial of essential elements and therefore offer potential for reconstruction of past venting activity. The deposition and burial of partly reduced plume material (e.g., Fe sulfides) in an oxic deep-sea sediment results in sediment chemistry and diagenesis that is very specific to the hydrothermal environment, while the redox signature of the plume is gradually lost. Beyond its role as a potential source of bioavailable Fe, we highlight how hydrothermal venting represents an efficient sink for organic C and bioavailable P. The findings contribute to understanding the profound impact of geological episodes of increased hydrothermal activity on ocean biogeochemistry and the coupled ocean-climate system.

Removal of Copper(Cu) from Wastewater Using Modified Recycle Carbon Black (RCB) Waste Tyre

In this century, sustainability has become an essential element in any project to ensure a safe environment. The conversion of waste materials is an important step towards achieving sustainability. Moreover, converting these materials into adsorbents to treat wastewater shows great potential, especially due to its cost-effectiveness and the reduction of solid waste disposal. This research study aims to investigate the removal of Copper (Cu) from wastewater using waste tyre-recycled carbon black (WT-rCB) and modified waste tyre-recycled carbon black (WT-dAC) to determine their adsorption capability. The removal of Copper using WT-rCB and WT-dAC were investigated with various parameters: pH value, adsorbent dosage, and contact time. The chemical-physical activation process was employed to produce the WT-dAC. First, WT-rCB was impregnated with 1:5 wt% of 1 M KOH solution, then physically activated at 650 °C for 1 hr with flowing Nitrogen gas at 1 L/min. The adsorption study observed a removal efficiency of up to 65% using WT-dAC, while WT-rCB showed a removal efficiency of 22% under the optimum conditions. Eventually, the study demonstrates the employability of WT-dAC in the removal of Copper (Cu) from wastewater.

Lithium Content and Its Nutritional Beneficence, Dietary Intake, and Impact on Human Health in Edibles from the Romanian Market.

Lithium (Li) is present in human nutrition based on food intake, and several studies recommend it for treating mood disorders, even if the biological proprieties and biochemical mechanisms represent the basis for its use as an essential element. The Li content was evaluated using the inductively coupled plasma mass spectrometry technique (ICP-MS) in 1071 food and beverage samples from the Romanian market. The results show that Li had a decreasing mean concentration in the food samples as follows: vegetables leafy > bulbous > fructose > leguminous > egg whites > root vegetables > milk products > egg yolks > meats. Approximately a quarter of all data from each dataset category was extreme values (range between the third quartile and maximum value), with only 10% below the detection limit. Mean Li concentration indicated higher values in red wine, white wines, beers, and fruit juice and lower in ciders and bottled waters. A particular interest was addressed to plants for teas and coffee seeds, which showed narrow amounts of Li. For both food and beverages, two similar matrices, including egg whites and yolks and white and red wines, were found to have significant differences, which explains the high variability of Li uptake in various matrices. For 99.65% of the analyzed samples, the estimated daily intake of Li was below the provisional subchronic and chronic reference dose (2 µg/kgbw/day) for adverse effects in several organs and systems. Even so, a risk occurs in consuming bulbous vegetables (Li > 13.47 mg/kg) and fructose solano vegetables (Li > 11.33 mg/kg). The present study's findings indicate that ingesting most of the analyzed beverages and food samples could be considered safe, even if future studies regarding Li content, nutritional aspects, and human cohort diseases must be conducted.

Hypomagnesemia May Predict Better Survival and Reduced Nonrelapse Mortality in Allogeneic Hematopoietic Stem Cell Transplantation Recipients

Magnesium (Mg) is an essential element that is required as a cofactor for many cellular reactions, including immunologic pathways. The aim of this study was to investigate the potential impact of serum Mg levels on allogeneic hematopoietic stem cell transplantation (alloHSCT) outcomes. Medical records of 340 alloHSCT recipients (median age: 45 [18-71] years; M/F: 210/130) were reviewed for this retrospective study. Serum Mg levels on days -28, -7, 0, +7, +14, +21, +30, +60, and +90 were included in the analysis. Serum Mg+14 levels predicted nonrelapse mortality (NRM) (P = .025) and had a significant impact on the development of mucositis (P = .027), fungal infection (P = .006), engraftment syndrome (P < .001), sinusoidal obstruction syndrome (SOS) (P = .001), cytomegalovirus (CMV) reactivation (P = .039), and acute graft vs host disease (GvHD) (P < .001). Based on the optimal threshold of serum Mg+14 level (1.33 mg/dL; area under the curve: 0.581 [0.515-0.648]; P = .018), the study group was divided into 2 subgroups as low- and high-Mg+14. The incidence of acute GvHD (P = .002), SOS (P = .013), engraftment syndrome (P = .013), CMV reactivation (P = .001), and Epstein Barr virus reactivation (P = .005) was significantly lower in low-Mg+14 group. The probability of overall survival (OS) was significantly better (P = .002), whereas NRM was lower in the low-Mg+14 group (P = .001). Hypomagnesemia seems to provide a considerable advantage for the post-transplant outcome, which may confirm its potential role in the immunologic microenvironment and adaptive immunity.

Mosquitoes do not Like Bitter.

Chemical repellents play a crucial role in personal protection, serving as essential elements in reducing the transmission of vector-borne diseases. A biorational perspective that extends beyond the olfactory system as the classical target may be a promising direction to move. The taste system provides reliable information regarding food quality, helping animals to discriminate between nutritious and potentially harmful food sources, often associated with a bitter taste. Understanding how bitter compounds affect feeding in blood-sucking insects could unveil novel molecules with the potential to reduce biting and feeding. Here, we investigated the impact of two naturally occurring bitter compounds, caffeine and quinine, on the feeding decisions in female Aedes aegypti mosquitoes at two distinctive phases: (1) when the mosquito explores the biting substrate using external taste sensors and (2) when the mosquito takes a sip of food and tastes it using internal taste receptors. We assessed the aversiveness of bitter compounds through both an artificial feeding condition (artificial feeder test) and a real host (arm-in-cage test). Our findings revealed different sensitivities in the external and internal sensory pathways responsible for detecting bitter taste in Ae. aegypti. Internal detectors exhibited responsiveness to lower doses compared to the external sensors. Quinine exerted a more pronounced negative impact on biting and feeding activity than caffeine. The implications of our findings are discussed in the context of mosquito food recognition and the potential practical implications for personal protection.

Selenium Supplementation in Patients with Hashimoto Thyroiditis: A Systematic Review and Meta-Analysis of Randomized Clinical Trials.

Background: Hashimoto thyroiditis (HT) is the most common cause of hypothyroidism in iodine-sufficient areas. Selenium is an essential trace element required for thyroid hormone synthesis and exerts antioxidant effects. Therefore, it may be of relevance in the management of HT. Methods: We conducted a systematic review and meta-analysis of randomized controlled trials (RCTs) to evaluate the effect of selenium supplementation on thyroid function (thyrotropin [TSH], free and total thyroxine [fT4, T4], free and total triiodothyronine [fT3, T3]), thyroid antibodies (thyroid peroxidase antibodies [TPOAb], thyroglobulin antibodies [TGAb], thyrotropin receptor antibody [TRAb]), ultrasound findings (echogenicity, thyroid volume), immune markers, patient-reported outcomes, and adverse events in HT. The study protocol was registered on PROSPERO (CRD42022308377). We systematically searched MEDLINE, Embase, CINHAL, Web of Science, Google Scholar, and the Cochrane CENTRAL Register of Trials from inception to January 2023 and searched citations of eligible studies. Two independent authors reviewed and coded the identified literature. The primary outcome was TSH in patients without thyroid hormone replacement therapy (THRT); the others were considered secondary outcomes. We synthesized the results as standardized mean differences (SMD) or odds ratio (OR), assessed risk of bias using the Cochrane RoB 2 tool, and rated the evidence using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach. Results: We screened 687 records and included 35 unique studies. Our meta-analysis found that selenium supplementation decreased TSH in patients without THRT (SMD -0.21 [confidence interval, CI -0.43 to -0.02]; 7 cohorts, 869 participants; I2 = 0%). In addition, TPOAb (SMD -0.96 [CI -1.36 to -0.56]; 29 cohorts; 2358 participants; I2 = 90%) and malondialdehyde (MDA; SMD -1.16 [CI -2.29 to -0.02]; 3 cohorts; 248 participants; I2 = 85%) decreased in patients with and without THRT. Adverse effects were comparable between the intervention and control groups (OR 0.89 [CI 0.46 to 1.75]; 16 cohorts; 1339 participants; I2 = 0%). No significant changes were observed in fT4, T4, fT3, T3, TGAb, thyroid volume, interleukin (IL)-2, and IL-10. Overall, certainty of evidence was moderate. Conclusions: In people with HT without THRT, selenium was effective and safe in lowering TSH, TPOAb, and MDA levels. Indications for lowering TPOAb were found independent of THRT.

Common myrtle (Myrtus communis L.): Trace element composition and contribution to dietary intake

Common myrtle (Myrtus communis L.) is an appreciated aromatic and medicinal plant used as a flavor and fragrance ingredient in culinary applications, and possesses several bioactive compounds with marked health benefits. In the present investigation selected mineral and trace element concentrations were measured in Algerian myrtle leaves by energy dispersive X-ray fluorescence (EDXRF) spectrometry. The results show that K, Fe and P were present in high amounts with mean values of 17,971 ± 17.9, 750 ± 17 and 705 ± 11 μg–1 respectively. The decreasing sequence of the mean contents of essential elements in M. communis is as follows: K > Fe > P > Mn > Zn > Cu > V > Cr. The estimation of daily intake through the consumption of 10 g DW day−1person−1 contributes sufficiently or partially to the daily needs of some essential elements such as Fe, V, Cr, and Mn. Toxic element concentrations (As and Br) were found inferior than the set limits according to the world health organization (FAO/WHO). These results provide a new data reference for pharmaceutical and culinary purposes.

Essential dataset features in a successful obesity registry: a systematic review.

The prevalence of obesity and the diversity of available treatments makes the development of a national obesity registry desirable. To do this, it is essential to design a minimal dataset to meet the needs of a registry. This review aims to identify the essential elements of a successful obesity registry. We conducted a systematic literature review adhering to the Preferred Reporting Items for Systematic Review and Meta-Analysis recommendations. Google Scholar, Scopus and PubMed databases and Google sites were searched to identify articles containing obesity or overweight registries or datasets of obesity. We included English articles up to January 2023. A total of 82 articles were identified. Data collection of all registries was carried out via a web-based system. According to the included datasets, the important features were as follows: demographics, anthropometrics, medical history, lifestyle assessment, nutritional assessment, weight history, clinical information, medication history, family medical history, prenatal history, quality-of-life assessment and eating disorders. In this study, the essential features in the obesity registry dataset were demographics, anthropometrics, medical history, lifestyle assessment, nutritional assessment, weight history and clinical analysis items.