Getting Bone Health Right From the Start: Innovative Technology and New Mechanims of Mother-fetus Cross Talk for Osteopenia and Osteporosis Prevention
试验速览
- 阶段
- 不适用
- 状态
- 进行中（未招募）
- 入组人数
- 200
- 试验地点
- 4
- 主要终点
- Bone Mineral Density (BMD)
研究概览
简要总结
All factors that influence the peak bone mass achieved at skeletal maturity are important in determining an individual's risk of developing osteoporosis later in life. Bone health begins with maternal health and nutrition, which influence skeletal mass and bone density in utero. The mechanisms underlying the effect of the intrauterine environment on bone health are currently unknown, but certainly include 'fetal programming' of oxidative stress and endocrine systems, as these influence skeletal growth and development later in life.
For the prevention of bone health, the challenges rely 1) in the need for new technology and software specific and applicable to the fetus and newborn; 2) in establishing the effect of environmental contaminants, in particular endocrine disruptors, oxidative stress and subsequent epigenetic changes in mothers and subsequently on the fetus, newborn and infant.
详细描述
Maximising bone mass during skeletal growth has become the goal of primary prevention of osteopenia and osteoporosis. Any factor that might influence the peak bone mass attained during skeletal maturation is important in determining an individual's risk of developing osteoporosis later in life. Bone health begins with maternal health and nutrition, which influence skeletal mass and bone density in the foetus. The acquisition of peak bone mass is also genetically influenced by both parents. To date, there is some evidence that the risk of osteoporosis in later life may be determined by environmental exposures during intrauterine or early postnatal life. The mechanisms underlying the long-term effects of the intrauterine environment on bone health are currently unknown, but certainly include "fetal programming" of oxidative stress and endocrine systems that influence skeletal growth and development in utero and after birth.
Osteopenia is increasingly diagnosed in low birth weight infants. Intrauterine growth restriction (IUGR) further increases the risk of obesity and metabolic syndrome, conditions that significantly compromise bone quality. Recent studies have highlighted the central role of microRNAs (miRNAs) in bone growth and mineralisation, alongside peptides such as irisin and HMGB-1. These peptides are involved in glucose metabolism and the regulation of adipose and muscle tissue and have recently been linked to bone metabolism. MicroRNAs and long non-coding RNAs (lncRNAs) have gained attention for their ability to regulate gene expression post-transcriptionally, providing epigenetic modifications that influence growth plate and bone development. It remains unclear how maternal nutritional factors affect fetal bone mineral density (BMD) or how variations in fetal BMD may influence birth outcomes, such as spontaneous clavicle or skull fractures during operative delivery, and long-term bone mineralisation.
These findings highlight the importance of assessing skeletal status during the perinatal period. Early identification of conditions that affect bone mass or mineralisation and ongoing monitoring of bone development are essential to improve outcomes.
Radiofrequency echographic multi-spectrometry (REMS) technology has demonstrated its utility in the assessment of BMD in pregnant women. While few studies have investigated the use of transmission ultrasound to assess bone status in neonates, REMS technology shows great promise. Its advantages include the absence of ionising radiation, ease of use and, most importantly, the potential to conduct longitudinal studies of REMS patterns from the intrauterine period into the first year of life.
This innovative approach offers new opportunities to understand the maternal-fetal factors that influence bone health and to develop strategies to optimise bone development from the earliest stages of life.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Screening
- 盲法
- None
入排标准
- 年龄范围
- 37 Weeks 至 42 Weeks（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •term infants from low-risk pregnancy
- •(37-42 weeks gestational age)
- •Single pregnancy
- •Absence of current or previous maternal diseases that could potentially interfere with bone metabolism (e.g., thyroid, kidney, liver disease)
- •Absence of motor disability of the mother
- •No previous history of recent, previous bone fractures or traumatic fractures (in the mother)
- •No intake of vitamin D or other medications during pregnancy
- •Maternal age >18 years
- •No diagnosis of osteopenia or osteoporosis according to the criteria of the Italian Society for Osteoporosis, Mineral Metabolism and Bone Diseases (SIOMMMS)
排除标准
- •preterm infants
- •Infants hospitalized since birth for special conditions
- •infants with metabolic disorders
- •infants with genetic syndromes
结局指标
主要结局
Bone Mineral Density (BMD)
时间窗: >37 and <42 weeks; 48 hours; 1, 3, 6, and 12 months
The novel application of REMS technology in the fetal and neonatal population requires the construction of a reference database. Data from the first 100 enrolled fetuses will form the basis of this database, and the same approach will apply to newborns, with the initial 100 cases corresponding to the same fetal cohort. Echographic acquisitions of fetuses and newborns, obtained using REMS devices, will be anonymized and transferred to the subcontractor, who will adapt REMS configurations for pediatric use. This adaptation will enable the identification of target bone structures and provide densitometric outputs. BMD values will be calculated for each age group, and from the first 100 cases, mean and standard deviation will be derived to construct a 6-point BMD reference curve, comprising fetuses (\>37 and \<42 weeks) and newborns (48 hours, 1, 3, 6, and 12 months). Z-scores will be used to assess bone growth, and separate gender-specific curves will be developed.
MicroRNA assay on umbilical cord blood
时间窗: at birth
By TaqMan Advanced miRNA assays (Applied Biosystems) miRNAs will be quantified and normalized using hsa-miR-16-5p (Assay ID: 477860_mir) as endogenous control. Real-Time qRT-PCR will be used for the specific candidate miRNAs: miR-199a-5p, miR-140, miR-335-5p, mir-503-5p, miR-494-3p, mir-369-3p, mir-379-5p, as it has been recently shown that they vary in relationship to GH status, and are related to growth response.
Endocrine disruptors (EDCs) on umbilical cord blood at birth.
时间窗: at birth
Thirteen different EDCs are assayed, namely: Di(2-ethylhexyl) phthalate and its oxidised metabolites (MEHP, 6-OH-MEHP, 5-carboxy-MEPP, 5-oxo MEHP, 5-OH-MEHP), Bisphenol (BP) A, BPS, BPF, polyciclic aromatic hydrocarbons, polychorodibenzophuranes and polichorodibenzo-p-dioxins, perfluoro-alchilic substances, gliphosate, and its main metabolite, parabens (methyl-, ethyl-, propyl-, butyl- esters of 4-Hydroxybenzoic acid), piretroid insecticides,heavy metals (Pb, Cr).
Lipid mediators involved in oxidative stress
时间窗: at birth, 1 month
The ELISA test will be used for the investigation of lipid metabolism and will evaluate specialised pro-resolving lipid mediators (Resolvin D1).
Endocrine disruptors (EDCs) on urine at 1 months of age.
时间窗: 1 month
Thirteen different EDCs are assayed, namely: Di(2-ethylhexyl) phthalate and its oxidised metabolites (MEHP, 6-OH-MEHP, 5-carboxy-MEPP, 5-oxo MEHP, 5-OH-MEHP), Bisphenol (BP) A, BPS, BPF, polyciclic aromatic hydrocarbons, polychorodibenzophuranes and polichorodibenzo-p-dioxins, perfluoro-alchilic substances, gliphosate, and its main metabolite, parabens (methyl-, ethyl-, propyl-, butyl- esters of 4-Hydroxybenzoic acid), piretroid insecticides,heavy metals (Pb, Cr).
Oxidative stress (OS) profile
时间窗: at birth, 1 month
Oxidative stress (OS) profile will be evaluated by biomarkers of oxidative protein damage (Advanced Oxidation Protein Products, AOPP) and lipid peroxidation (Isoprostanes, IsoPs, malondialdehyde, MDA).
Oxidative stress (OS) molecules
时间窗: at birth, 1 month
Non-enzymatic antioxidant molecules (vitamin E; glutathione, GSH, and ascorbic acid, AA) and enzymatic antioxidant molecules (superoxide dismutase, SOD, catalase, CAT, and glutathione peroxidase, GPx) will be evaluated by highly specific and sensitive methods, such as high resolution liquid chromatography (HPLC), and gas chromatography interfaced mass spectrometry (GC-MS).
Standard biochemical tests
时间窗: at birth, 1 month
calcium, phosphorus, alkaline phosphatase, PTH, vitamin D (25 OH), and IGF-I
Exposure to endocrine disruptors (EDCs) related to diet, clothing and the use of cosmetics and detergents.
时间窗: at the enrollment
The questionnaire is an adaptation of the questionnaire drafted and already used as part of two previous projects "Phthalates and bisphenol A biomonitoring in Italianmother-childpairs: link between exposure and juvenile diseases' (LIFE PERSUADED) LIFE13 ENV/IT/000482; and 'Mother and infants dyads: lowering the impact of endocrine disrupting chemicals in milk for a healthy life2 (LIFE MILCH-LIFE18 ENV/EN/000460).
次要结局
未报告次要终点
研究者
Serafina Perrone
Professor, PhD, MD
University of Parma