Words similar to senescence
Example sentences for: senescence
How can you use “senescence” in a sentence? Here are some example sentences to help you improve your vocabulary:
During the last trimester of human pregnancy, the placenta may exhibit pronounced abnormality associated with generalized villous degeneration, often called placental aging or senescence [ 22 23 24 27 43 44 45 ] . We have recently shown that placental abnormality is associated with the diminution of Thy-1 differentiation protein immunostaining in the villous core and less or more pronounced dilatation of villous sinusoids.
These include DNA damage caused by Ionizing Radiation and genotoxic agents [ 1], by expression of activated oncogenes such as ras or myc [ 2], or during progression of primary cells to senescence [ 3].
As recently indicated [ 30 ] , certain types of placental abnormality have also been ascribed to the villous immaturity (low or no Thy-1 differentiation protein expression in placental villi and a lack of blood sinusoid dilatation - PT4, see above) accompanied by an existing (diabetes mellitus) or absent placental hypertrophy (intrauterine growth retardation) - Table 1. However, it has been suggested that although chronic placental adaptations may be successful for the fetal survival, e.g. in placental senescence or maternal diabetes, they may lead to adverse outcomes later in the life of an individual [ 22 ] . Therefore, although it might not be apparent in the newborn, the abnormal placenta may indicate a burden for the future of an individual and for the quality of the human population.
It is possible that the higher expression levels observed during stem and leaf senescence are due to suppression of photosynthesis activity.
Closer inspection of the differences between expression levels of these genes in the vegetative growth samples reveals a slight elevation in expression for non-photosynthetic samples, including all root samples, and senescence stem and senescence leaf samples (Figure 8).
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