Dynamics of telomeric repeat-containing RNA expression in early embryonic cleavage stages with regards to maternal age

The astropectinid asteroid Plutonaster bifrons (Wyville Thomson) occurs on the continental slope of the north-east Atlantic between 1000 and 2500 m depths. As in most deepsea animals, the factors limiting bathymetric distribution of this species are unknown. Eggs were fertilized in vitro and incubated through the early embryonic cleavage stages at pressures that correspond to depths from 0 to 3000 m. The highest percentage of normal development occurred near the peak of the species distribution (2000 m), and virtually no normal development occurred at a pressure corresponding to 3000 m depth. Develop-mental rate was retarded at pressures higher and lower than those found near 2000 m. These experiments indicate that embryonic pressure tolerances could determine both the upper and lower bathymetric limits of distribution for this species.

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Indicator Profile of Birth Defects: Down Syndrome: Down Syndrome Birth Prevalence by Maternal Age, Utah, 1995-2006

PsycEXTRA Dataset ◽

10.1037/e570352011-001 ◽

2008 ◽

Keyword(s):

Down Syndrome ◽

Birth Defects ◽

Maternal Age ◽

Birth Prevalence

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First trimester ultrasound screening for trisomy 21 based on maternal age, fetal nuchal translucency and different combinations of the additional markers nasal bone, tricuspid and ductus venosus flow

Ultraschall in der Medizin - European Journal of Ultrasound ◽

10.1055/s-0035-1558776 ◽

2015 ◽

Vol 36 (S 01) ◽

Author(s):

KO Kagan ◽

M Hoopmann ◽

P Wagner ◽

H Abele

Keyword(s):

Trisomy 21 ◽

Maternal Age ◽

Nasal Bone ◽

First Trimester ◽

Nuchal Translucency ◽

Ductus Venosus ◽

Ultrasound Screening ◽

First Trimester Ultrasound

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Maternal Knowledge Factor, Maternal Age and Maternal Parity Associated with Genesis of Normal Delivery at Palembang Hospital of Bari Year 2017

SRIWIJAYA JOURNAL OF MEDICINE ◽

10.32539/sjm.v1i1.7 ◽

2018 ◽

Vol 1 (1) ◽

pp. 43-50

Author(s):

Juliana Widyastuti Wahyuningsih

Keyword(s):

Maternal Age ◽

World Health ◽

Survey Method ◽

P Value ◽

Maternal Knowledge ◽

Cross Sectional ◽

Normal Delivery ◽

Significance Level ◽

Birth Canal ◽

Maternal Parity

Childbirthis a processLabor of opening and depleting the cervix and the fetus down into the birth canal. Birth is a process in which the fetus and amniotic are pushed out through the birth canal. (Sarwono, 2008). According to the World Health Organization (WHO) estimates more than 585,000 mothers annually die during pregnancy or childbirth. Indonesia Health Demographic Survey (SDKI) Survey in 2012, Maternal Mortality Rate in Indonesia is still high at 359 per 100,000 live births. The purpose of this study is the knowledge of maternal knowledge, maternal age, and maternal parity associated with normal birth events at Palembang Bari Hospital 2017. This study used analytical survey method with cross sectional approach. The population in this study were all maternal mothers at the Palembang Bari Hospital in 2017. Sampling in the study was conducted non-randomly with the technique of "Accidental Sampling". Data analysis was done univariat and bivariate with Chi-Square statistical test with significance level α = 0,05. The result of this research shows that there is correlation between mother's knowledge with normal delivery incidence with p value 0,001, there is correlation between mother age with normal delivery incidence with p value 0,009, there is relation between mother parity with normal delivery incidence with p value 0,001. From result of this research hopes healthcare workers can improve normal delivery care services and more often to carry out maternal safety counseling.

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Parental breeding age effects on descendants’ longevity interact over two generations in matrilines and patrilines

10.32942/osf.io/mnx8h ◽

2019 ◽

Author(s):

Zac Wylde ◽

Foteini Spagopoulou ◽

Amy K Hooper ◽

Alexei A Maklakov ◽

Russell Bonduriansky

Keyword(s):

Maternal Age ◽

First Generation ◽

Age Effects ◽

Population Variation ◽

Paternal Age ◽

Interactive Effects ◽

Competitive Environment ◽

Larval Diet ◽

Negative Effects ◽

Two Generations

Individuals within populations vary enormously in mortality risk and longevity, but the causes of this variation remain poorly understood. A potentially important and phylogenetically widespread source of such variation is maternal age at breeding, which typically has negative effects on offspring longevity. Here, we show that paternal age can affect offspring longevity as strongly as maternal age does, and that breeding age effects can interact over two generations in both matrilines and patrilines. We manipulated maternal and paternal ages at breeding over two generations in the neriid fly Telostylinus angusticollis. To determine whether breeding age effects can be modulated by the environment, we also manipulated larval diet and male competitive environment in the first generation. We found separate and interactive effects of parental and grandparental ages at breeding on descendants’ mortality rate and lifespan in both matrilines and patrilines. These breeding age effects were not modulated by grandparental larval diet quality or competitive environment. Our findings suggest that variation in maternal and paternal ages at breeding could contribute substantially to intra-population variation in mortality and longevity.

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