• measure Hair samples - Dehydroepiandrosterone (DHEA)

    Study:L-CID
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Early Childhood Cohort  ECC - T2 ECC - T3 ECC - T4 ECC - T6

    Middle Childhood Cohort  MCC - T2 MCC - T3 MCC - T4
     
    0
    5
    10
    15
    20
    25
    30
    years
    A hair sample is a collection of hair strands, which are usually cut from a person's head. Hair samples usually contain hair that has grown over the last 12 months.
    Created June 5, 2024 • Updated June 20, 2024

  • measure E-diary - Tympanic Membrane Temperature

    Study:L-CID
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Early Childhood Cohort  ECC - T1 ECC - T2 ECC - T3 ECC - T5

    Middle Childhood Cohort  MCC - T1 MCC - T2 MCC - T3
     
    0
    5
    10
    15
    20
    25
    30
    years
    The E-diary Daily Structure and Activities of the Children - Ear Temperature assesses the children's ear temperature through self-reporting in the Upinion smartphone app.
    Created June 5, 2024 • Updated June 20, 2024

  • measure Zygosity (DNA)

    Study:L-CID
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Early Childhood Cohort  ECC - T2

    Middle Childhood Cohort  MCC - T1
     
    0
    5
    10
    15
    20
    25
    30
    years
    Zygosity typing based on micro-satellite markers, single nucleotide polymorphisms (SNP), or variable number (short) tandem repeats (VNTRs).
    Created June 5, 2024 • Updated June 20, 2024

  • measure Sleep patterns - Actigraph

    Study:L-CID
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Early Childhood Cohort  ECC - T1 ECC - T2 ECC - T3 ECC - T5 ECC - T6

    Middle Childhood Cohort  MCC - T1 MCC - T2 MCC - T3 MCC - T5
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Actigraph (Motionlogger) is a device used to determine the sleep patterns of a child during the night.
    Created June 5, 2024 • Updated June 20, 2024

  • measure Urinary osmolality

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3
     
    0
    5
    10
    15
    20
    25
    30
    years
    Urinary osmolality was measured with a density test (specific gravity) using the Atago refractometer PAL-10S BLT/A+W (Atago, Tokyo, Japan). The refractive index is a ratio of the velocity of light in air to the velocity of light in solution, which is directly proportional to the number of dissolved solids in urine.
    Created June 5, 2024 • Updated June 20, 2024

  • measure Buccal swab

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3 YC_BS1 YC_BS2 YC_BS3 YC_DSC YE_FITNSS YE_ATTEF1 YE_ATTEF2 YE_ATTEF3 YC_ADHMRI YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    Buccal swabs are collections of buccal cell scrapings obtained by rubbing buds along the inside of the mouth.
    Created June 5, 2024 • Updated June 20, 2024

  • measure LC-MS amines

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3
     
    0
    5
    10
    15
    20
    25
    30
    years
    Liquid chromatography mass spectrometry (LC-MS) platform targeting amines.
    Created June 5, 2024 • Updated June 20, 2024

  • measure Neuropeptides

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3
     
    0
    5
    10
    15
    20
    25
    30
    years
    Neuropeptides, including Substance P, Beta-endorphin, Dynorphin A, neurotensin, and Leu-enkaphalin, were measured with traditional enzymatic tests, such as Enzyme-Linked Immunosorbent Assays (ELISA).
    Created June 5, 2024 • Updated June 20, 2024

  • measure NMR metabolomics

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    Untargeted proton nuclear magnetic resonance (1H-NMR) metabolomics platform.
    Created June 5, 2024 • Updated June 20, 2024

  • measure Genotyping (array)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3 YC_BS1 YC_BS2 YC_BS3 YC_DSC YE_FITNSS YC_ADHMRI YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    Assessment of single nucleotide polymorphisms (SNPs) as obtained through genotyping arrays.
    Created June 5, 2024 • Updated June 20, 2024

  • measure Skinfold thickness

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    Skinfold thickness is an assessment of body fat which can noninvasively and reliably be measured at various sites of the body using a skinfold caliper. Based on measurements at multiple sites of the body, the total body fat and contribution of fat to the body mass can be estimated.
    Created June 5, 2024 • Updated June 20, 2024

  • measure LC-MS steroid hormones

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB2 YC_ACTION - BB3 YC_BS1
     
    0
    5
    10
    15
    20
    25
    30
    years
    Liquid chromatography mass spectrometry (LC-MS) platform targeting steroid hormones.
    Created June 5, 2024 • Updated June 20, 2024

  • measure VU University Ambulatory Monitoring System (VU-AMS)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_FITNSS YE_ATTEF3 YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    The VU University Ambulatory Monitoring System (VU-AMS) enables non-invasive ambulatory measurement of the autonomic nervous system for research purposes and can be used to measure: Heart Rate/Inter beat Interval (IBI), Heart Rate Variability (SDNN, RMSSD, IBI power spectrum: HF, LF), Respiratory Sinus Arrhythmia (RSA), Pre-Ejection Period (PEP), Left...
    Created June 5, 2024 • Updated June 20, 2024

  • measure GC-MS organic acids

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3
     
    0
    5
    10
    15
    20
    25
    30
    years
    Gas chromatography mass spectrometry (GC-MS) platform targeting organic acids.
    Created June 5, 2024 • Updated June 20, 2024

  • measure Saliva sample

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YC_BS2 YC_BS3 YE_ATTEF2 YE_COG12 YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    Saliva was collected using a cotton swab or a collection device, such as a tube or container (passive drool).
    Created June 5, 2024 • Updated June 20, 2024

  • measure Steroid hormones

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YC_BS2 YC_BS3 YE_ATTEF2 YE_COG12 YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    Steroid hormones, for instance Testosterone, Estrogen, Dehydroepiandrosterone (DHEA), and Cortisol, measured with traditional enzymatic tests, such as Enzyme-Linked Immunosorbent Assays (ELISA).
    Created June 5, 2024 • Updated June 20, 2024

  • measure Liver enzymes

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3 YC_BS1 YC_BS2 YC_BS3
     
    0
    5
    10
    15
    20
    25
    30
    years
    Liver enzymes, for instance Albumin, Jodide, Aspartaat Aminotransferase (ASAT), and Alanine Transaminase (ALAT), measured with traditional enzymatic tests, such as Enzyme-Linked Immunosorbent Assays (ELISA).
    Created June 5, 2024 • Updated June 20, 2024

  • measure Peptide hormones

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_BS1 YC_BS2 YC_BS3
     
    0
    5
    10
    15
    20
    25
    30
    years
    Peptide hormones, for instance Adrenocorticotropic Hormone (ACTH, pituitary hormone), Alpha-Melanocyte-Stimulating Hormone (α-MSH, Melanocortin), Luteinizing Hormone (LH), Cholecytokinin, and Follicle Stimulating Hormone (FSH), measured with traditional enzymatic tests, such as Enzyme-Linked Immunosorbent Assays (ELISA).
    Created June 5, 2024 • Updated June 20, 2024

  • measure Handgrip

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_FITNSS
     
    0
    5
    10
    15
    20
    25
    30
    years
    Handgrip strength in both hands was measured with a dynamometer (Baseline Digital Smedley Hand dynamometer, Fabrication Enterprises Inc., USA) with one arm at the side of the body and the elbow at a 90 degree angle.
    Created June 5, 2024 • Updated June 20, 2024

  • measure DNA methylation (array)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION - BB3
     
    0
    5
    10
    15
    20
    25
    30
    years
    Assessment of DNA methylation as obtained through DNA methylation arrays.
    Created June 5, 2024 • Updated June 20, 2024
You can also access this registry using the API (see API Docs).