Pathologic eggs have been documented in the amniote eggs of birds, turtles, and dinosaurs. These eggs occur either in the form of one egg within another egg, a condition known as ovum-in-ovo or multi-shelled eggs showing additional pathological eggshell
With increasing age of female mammals, the reproductive system and fertility declines. This is mainly caused by a complex process that occurs when the ovary undergoes senescence. Currently, most studies suggest that ovarian aging is caused by accumulation of oxidative stress, alterations in epigenetic...
Mutations allowing the production of genomically balanced gametes in a parthenogen, either hybrid or nonhybrid, could change only one or few steps of a genetically controlled, though not rigidly deter- mined, system. The hypothesis forwarded by Bullini & Nascetti (1990) bridging spontaneous and...
We will use a stratified random sampling method to recruit survey participants. Venues will be selected from a list of all entertainment venues in the study sites based on a recent report on geographic information system (GIS) mapping of HIV key populations in Cambodia [47]. They are matched ...
This trial is unique in a number of ways. First, the option of participation mode (SMS or VM) allows participants to choose the message medium that best links them to services. Second, this is the first RCT of a mobile-phone-based behavior change intervention using SMS/VMs to support ...
Plant reproductive system - Angiosperms, Pollination, Fertilization: Although the angiosperms are known as flowering plants, they are difficult to distinguish from gymnosperms solely on the basis of bearing flowers, for, like the strobilus, a flower is a
EDCs, also known as environmental hormones or environmental estrogens, generally refer to exogenous chemicals to influence the endocrine system of organisms. There are a lot of EDCs and common examples including phenols, flame retardants, plastic additives, and pesticides. Previous studies have confirmed...
We nearly found no seed sets in most wild populations and very low seed sets occasionally occurred in large populations, which was different from other species of Polygonaceae. Mating experiments showed that P. criopolitanum has a strict self-incompatibility system and clonal propagation was more ...
The diminishing fibrinolytic activity is mainly caused by a continuous increase of the major inhibitor of the fibrinolytic system: plasminogen activator inhibitor type 1 (PAI-1) [2]. PAI-1 is responsible for approximately 60% of the PA-inhibitory activity Int. J. Mol. Sci. 2017, 18, 1651;...
As assessed with the Bioanalyzer System of Agilent Technologies (Santa Clara, CA, USA), samples with a 28S/18S rRNA ratio between 1.7–2.0 and a RIN (RNA Integrity Number) 9–10 were selected for poly(A)-RNA enrichment in two successive rounds using a Dynabeads mRNA direct microkit (...