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Myelin is formed by oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system.Therefore, the first stage of myelinogenesis is often defined as the differentiation of oligodendrocyte progenitor cells (OPCs) or Schwann cell progenitors into their mature counterparts, [4] followed by myelin formation around axons.
A and B: patient at 1 year (A) and 4 years (B). C: patient, 18 months. D: patient, 13 years. E: patient, 13 years. F: patient, 12 years. Note minor facial dysmorphism: round face, small chin, well-drawn eyebrows in the younger patients; longer face, high and large nasal bridge, long nose, protruding maxilla, in the older patients.
Children's brains contain more "silent synapses" that are inactive until recruited as part of neuroplasticity and flexible learning or memories. [38] [39] Neuroplasticity is heightened during critical or sensitive periods of brain development, mainly referring to brain development during child development. [40]
Myelination is only prevalent in a few brain regions at birth and continues into adulthood. The entire process is not complete until about 25–30 years of age. [24] Myelination is an important component of intelligence, and white matter quantity may be positively correlated with IQ test results in children. [24]
The process of generating myelin is called myelination or myelinogenesis. In the CNS, oligodendrocyte progenitor cells (OPCs) differentiate into mature oligodendrocytes, which form myelin. In humans, myelination begins early in the 3rd trimester, [ 11 ] although only little myelin is present in either the CNS or the PNS at the time of birth.
A hospital claimed it didn't have the "capacity" to care for a mom in labor, which caused her baby to die of infection at 35 hours old, a lawsuit alleges
One’s biological age, which measures the body’s physiological state, may help predict who is at risk for developing colon polyps, a known risk factor for colorectal cancer.
The white matter in preterm born children is particularly vulnerable during the third trimester of pregnancy when white matter developing takes place and the myelination process starts around 30 weeks of gestational age. [3]