Publications by authors named "Nasser Al-Daghri"

Background: Over 390 million children and adolescents are affected by overweight and obesity worldwide. Similarly, obesity rates are rising in these age groups in the Middle East and Gulf region including Saudi Arabia. Dietary habits are fundamental in childhood overweight and obesity management.

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Mild cognitive impairment, dementia and osteoporosis are common diseases of ageing and, with the increasingly ageing global population, are increasing in prevalence. These conditions are closely associated, with shared risk factors, common underlying biological mechanisms and potential direct causal pathways. In this review, the epidemiological and mechanistic links between mild cognitive impairment, dementia and skeletal health are explored.

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Radiofrequency echographic multi-spectrometry (REMS) is an innovative, non-ionizing diagnostic technique that has shown high accuracy and precision, making it a promising alternative to DXA for osteoporosis diagnosis in clinical settings. With economic considerations playing an increasingly crucial role in healthcare decisions, this study aims to evaluate the cost-effectiveness and economic impact of improved osteoporosis diagnosis using REMS followed by treatment in the United States. A microsimulation-based Markov model was constructed to estimate the cost per quality-adjusted life year (QALY) gained (in US$2022) for REMS followed by treatment vs no diagnosis and treatment in US women aged 50 yr and older with osteoporosis.

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The interest in the Mediterranean diet has grown considerably due to its potential health benefits on the prevention of diverse age-related chronic diseases and its association with longevity. This dietary pattern, considered among the healthiest in the world, is not simply a combination of healthy foods but goes further in its historical and cultural roots. Mediterranean diet is not intrinsically tied to any specific religion or spiritual system, but its cultural and geographical context has influenced the dietary practices of its inhabitants, encompassing the history of Western civilization and of the three Monotheistic religions Christianity, Judaism, and Islam.

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Few multination-based studies have examined the longitudinal association between PA (physical activity) and persistence of supra-threshold depressive symptoms (SDS). This cohort study aimed to assess the influence of PA on persistence of SDS. Data were obtained from the Population Survey of Health, Ageing and Retirement in Europe (SHARE).

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Objective: This study aimed to assess the effects of multi-strain probiotics on anthropometric and biochemical measures in Saudi adults with overweight or obesity.

Design: Single-centre, double-blind, placebo-controlled, randomised clinical trial.

Setting: Occupational Health Clinics at King Saud University Medical City, Riyadh, Saudi Arabia.

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Article Synopsis
  • The study investigates the vitamin D metabolite ratio (VMR) as a potential better indicator of vitamin D deficiency compared to 25-hydroxyvitamin D (25(OH)D) and 24,25-dihydroxyvitamin D (24,25(OH)D), aiming to show its stronger correlation with parathyroid hormone (PTH) levels and mortality.
  • It analyzed serum samples from 204 older adults, demonstrating that VMR had the strongest negative correlation with PTH levels and was associated with higher mortality rates in patients with low levels.
  • The results suggest that VMR could be a more reliable biomarker for assessing functional vitamin D deficiency, supporting its potential use in clinical practice.
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The metabolically healthy obesity (MHO) phenotype represents a complex and distinctive trait, the trends and characteristics of which remain unknown in the Saudi Arabian adult population. The present study aims to fill that gap. A combined total of 10,220 Saudi adults from 2 independent cohorts [2008-2019, = 7,896 (2,903 males and 4,993 females), and 2021-2023, = 2,324 (830 males and 1,494 females)] aged 19-70 years old was screened, of whom 9,631 (3,428 males and 6,203 females) were included.

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Article Synopsis
  • Bone forming agents are important treatments for people with osteoporosis who have a very high risk of getting fractures.
  • Doctors need to identify the right patients who will benefit the most from these treatments, especially those with severe osteoporosis or recent fractures.
  • Using these agents can help strengthen bones and reduce fracture risk, and after treatment, patients should switch to other therapies to keep their bones strong.
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Kale ( species) is considered a functional food whose macronutrient and phytochemical contents are considered beneficial and widely considered as a superfood. In the present 6-week cross-over trial with a 2-week washout period, we compared the beneficial effects of freeze-dried kale over peas among Arab women with obesity. A total of 124 Saudi women with obesity were allocated to receive either freeze-dried kale ( = 62) or freeze-dried peas ( = 62) given in the form of 3-gram sachets thrice daily for 2 weeks, followed by a 2-week washout period and a cross-over of 4 weeks.

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Micronutrient deficiencies, including iron deficiency, are linked to different cognitive impairments and sensory functions. However, whether circulating iron levels affect self-assessed multiple intelligence (MI) scores in adolescents remains uninvestigated. This study aimed to investigate associations between serum iron levels and self-assessed MI scores in adolescents in Riyadh, Saudi Arabia.

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Article Synopsis
  • - The study investigates how the Single Point Insulin Sensitivity Estimator (SPISE) index relates to Bone Mineral Density (BMD) in a sample of 1270 Arab adults, primarily women with a mean age of about 57 years.
  • - Results show that individuals with low BMD have significantly higher SPISE values compared to those with normal BMD, indicating an inverse relationship between SPISE and BMD for the overall population and in both low and normal BMD groups.
  • - The findings suggest a potential link between BMD and insulin sensitivity, calling for further research to explore the mechanisms and implications in lifestyle modification programs aimed at improving bone and metabolic health.
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Radiofrequency Echographic Multi Spectrometry (REMS) is a radiation-free, portable technology, which can be used for the assessment and monitoring of osteoporosis at the lumbar spine and femoral neck and may facilitate wider access to axial BMD measurement compared with standard dual-energy x-ray absorptiometry (DXA).There is a growing literature demonstrating a strong correlation between DXA and REMS measures of BMD and further work supporting 5-year prediction of fracture using the REMS Fragility Score, which provides a measure of bone quality (in addition to the quantitative measure of BMD).The non-ionising radiation emitted by REMS allows it to be used in previously underserved populations including pregnant women and children and may facilitate more frequent measurement of BMD.

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Background & Aims: Osteosarcopenia is a recently recognized geriatric syndrome. The association between osteosarcopenia and mortality risk is still largely underexplored. In this systematic review with meta-analysis of prospective cohort studies, we aimed to explore whether osteosarcopenia could be associated with a higher mortality risk.

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Gestational diabetes mellitus (GDM) has been linked with adverse pregnancy outcomes. Vitamin D receptor (VDR) gene variants have been associated with diabetes mellitus susceptibility and related complications. This study assessed the association between VDR gene polymorphism (rs2228570) and GDM risk among pregnant Arab women.

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Objectives: To evaluate some confounding factors that influence the concentrations of S100 calcium binding protein B (S100B), glial fibrillary acidic protein (GFAP), and ubiquitin carboxyl-terminal hydrolase L-1 (UCH-L1) in older individuals. Indeed, recent guidelines have proposed the combined use of S100B and the "GFAP-UCH-L1" mTBI test to rule out mild traumatic brain injuries (mTBI). As older adults are the most at risk of mTBI, it is particularly important to understand the confounding factors of those mTBI rule-out biomarkers in aging population.

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Article Synopsis
  • Osteoporosis has traditionally been seen as a women's disease, but recent evidence highlights its significant impact on men, necessitating more balanced research and guidelines for both genders.
  • An international working group has developed GRADE-assessed recommendations focusing on diagnosing, monitoring, and treating osteoporosis in men, based on a thorough review of current research.
  • Key areas of focus include understanding bone densitometry interpretations, treatment thresholds, and evaluating the economic impact of interventions, while future research needs to explore the effectiveness of various osteoporosis medications.
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Background: A considerable body of research has demonstrated that reducing sitting time benefits health. Therefore, the current study aimed to explore the prevalence of sedentary behavior (SB) and its patterns.

Methods: A total of 6975 university students (49.

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Interleukins (ILs) are a group of cytokines known to have immunomodulatory effects; they include ILs-33 and -37 whose emerging roles in the pathogenesis of metabolic syndrome (MetS) remain under investigated. In this study, we compared circulating IL-33 and IL-37 in Arab adults with and without MetS to determine its associations with MetS components. A total of 417 Saudi participants (151 males, 266 females; mean age ± SD 41.

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The rapid development and implementation of COVID-19 vaccines merit understanding its effects on metabolic indices. This retrospective longitudinal study investigated the influence of first-to-second-dose intervals and time since the final dose on the metabolic indices of individuals receiving COVID-19 vaccinations. A total of 318 Saudi subjects (59.

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Objective: The present cross-sectional study examined the association between circulating levels of sex hormone-binding globulin (SHBG) and testosterone with bone mineral density (BMD) in middle-aged Arab men.

Methods: Clinical data of 103 middle-aged Saudi men (mean age 60.7±7.

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This study aimed to assess several indicators of adiposity and their effectiveness in predicting metabolic syndrome (MetS) and identify their cut-off values among general Saudi adults. Consequently, 833 participants (49% male and 51% female) aged 42.2 ± 11.

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Vitamin D (VD) deficiency has been associated with inflammation and dysregulation of the immune system. The NLRP3 inflammasome, a critical immune response component, plays a pivotal role in developing inflammatory diseases. VD hinders NLRP3 inflammasome activation and thus exerts anti-inflammatory effects.

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Hyperglycemia associated with prediabetes (PD) alters NLRP3 inflammasome activity and related interleukins, yet no study has evaluated the expression of the NLRP3 inflammasome complex and related interleukins in individuals with a PD condition that did or did not develop type 2 diabetes mellitus (T2DM). This study investigated the effect of 6 months of lifestyle modification on the expression of the NLRP3 inflammasome and related interleukins (1α, 1β, 18, 33 and 37) in the sera of individuals with a PD condition that did or did not develop T2DM. This interventional study included 67 Saudi adults (mean age = 41.

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Pediatric obesity has become a global pandemic in the last century, contributing to short and long-term medical conditions that heighten the risk of morbidity and mortality in children. The 12-month school-based obesity management educational program aims to assess the effect of adherence to the lifestyle educational program and target outcomes, obesity, and hypertension. A total of 363 (nonadherent, = 179; adherent, = 184) Saudi school adolescents aged 12-18 were recruited from 60 schools in Riyadh City, Saudi Arabia.

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