Unlabelled: The Spanish total fertility rate declined from 2.8 to below 1.4 children per woman from 1975 to 2020. Spain is categorized as a "lowest-low fertility" country. Although there have been many attempts to explain the Spanish fertility decline, there has been an insufficient focus been given to religion. This brief report aims to analyse how religious affiliation, particularly being Catholics, associates with fertility behaviours-entering parenthood and the total number of children. Using three nationally representative surveys, we show that, compared with the religiously non-affiliated, Catholic women have a higher likelihood of entering parenthood after controlling for demographic, union status and educational characteristics. After controlling for changes in education and union formation, changes in religious affiliation account for approximately 4% of the cohort variation in the age at first birth, but there is no significant contribution for men nor to the total number of children for both sexes.
Supplementary Information: The online version contains supplementary material available at 10.1007/s10680-022-09644-1.
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http://dx.doi.org/10.1007/s10680-022-09644-1 | DOI Listing |
Front Mol Biosci
January 2025
Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland.
Introduction: Chronic inflammation caused by infections has a significant negative impact on the reproductive system and impairs fertility. The corpus luteum (CL) plays a central role not only in regulating the ovary cycle, but also in implantation of the embryo and maintenance of early pregnancy through the secretion of progesterone. Understanding the intricate interplay between inflammatory processes and reproductive organ's function is crucial for the development of effective therapeutic strategies to alleviate reproductive disorders and improve fertility.
View Article and Find Full Text PDFBMJ Open
December 2024
Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, Brazil.
Introduction: Infertility is a complex condition that affects millions worldwide, with significant physical, emotional and social implications. Mobile apps have emerged as potential tools to assist in the management of infertility by offering features such as menstrual cycle tracking, ovulation prediction, fertility education, lifestyle modification guidance and emotional support, thereby promoting reproductive health. Despite promising advancements such as the development of apps with sophisticated algorithms for ovulation prediction and comprehensive platforms offering integrated fertility education and emotional support, there remain gaps in the literature regarding the comprehensive evaluation of mobile apps for reproductive endocrinology and infertility.
View Article and Find Full Text PDFSociol Health Illn
January 2025
Independent Researcher.
Preimplantation Genetic Testing (PGT) is used to select in vitro embryos for distinct clinical contexts and purposes. PGT for monogenic conditions (PGT-M), also known as Preimplantation Genetic Diagnosis (PGD), enables the prevention of passing on a known genetic disorder to one's offspring. Conversely, PGT for aneuploidies (PGT-A), or Preimplantation Genetic Screening (PGS), is used to improve IVF success rates in fertility patients and increase confidence about the health outcomes of potential offspring.
View Article and Find Full Text PDFHum Reprod Open
November 2024
Departamento de Genética e Instituto de Biotecnología, Centro de Investigación Biomédica (CIBM), Universidad de Granada, Granada, Spain.
Study Question: Can genome-wide genotyping data be analysed using a hypothesis-driven approach to enhance the understanding of the genetic basis of severe spermatogenic failure (SPGF) in male infertility?
Summary Answer: Our findings revealed a significant association between SPGF and the gene and identified three novel genes (, , and ) along with 32 potentially pathogenic rare variants in 30 genes that contribute to this condition.
What Is Known Already: SPGF is a major cause of male infertility, often with an unknown aetiology. SPGF can be due to either multifactorial causes, including both common genetic variants in multiple genes and environmental factors, or highly damaging rare variants.
Rev Fac Cien Med Univ Nac Cordoba
December 2024
Universidad Nacional de Córdoba.
Introduction: parvovirus B19 (B19V) infection during pregnancy can be transmitted to the fetus and cause serious complications such as fetal hydrops and stillbirth. The preexistence of specific IgG prevents vertical transmission. Seroprevalence in fertile age is variable (50-70%) and depends on the region/viral circulation, in addition to factors such as maternal age and frequent exposure to children.
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