The way the brain ages is not the same in women and men. A study in mice has observed differences in the expression of the maternal and paternal X chromosomes that could explain variation in brain aging between the sexes and a faster deterioration in some women. Another study has discovered different survival strategies in the microglial cells of females and males. Both studies highlight sex differences that could have implications for several age-related neurological disorders, such as Alzheimer’s or Parkinson’s.

Mitoribosomes are present in the mitochondria of all eukaryotic cells. Their function is to allow the translation of mitochondrial mRNA that exclusively encodes components of the oxidative phosphorylation complexes (OXPHOS).

X-linked sideroblastic anemia (XLSA) is a rare genetic disorder caused by mutations in the ALAS2 gene, which plays a critical role in heme biosynthesis within red blood cells.

Researchers from Tel Aviv Sourasky Medical Center presented data from a study that aimed to investigate the genetic mechanisms underlying yellow nail syndrome (YNS), a rare disorder characterized by three features, namely yellow dystrophic nails, lymphedema and chronic lung disease.

Having 35 copies of the CAG triplet in the gene that causes Huntington’s disease is not a problem. Inheriting 40 could be a sign that goes unnoticed for decades, until reaching 80. From there, the process accelerates and neural death occurs when reaching 150 repeats. Huntington’s disease neurodegeneration is not determined by what, but by how much, according to a study conducted at the Broad Institute.

Around the end of every year, the media reports on pregnancy and women who give birth on the last and first days of the new year. They tell their stories, the names of their babies and the cities where they were born. While 2024 was coming to an end, gynecologists and other researchers finalized their publications to improve the health of women and their babies. The formation of the placenta or the study of preeclampsia are some of the first and last stories that greet and say goodbye to 2024. Those of 2025 will be born soon.

Around the end of every year, the media reports on pregnancy and women who give birth on the last and first days of the new year. They tell their stories, the names of their babies and the cities where they were born. While 2024 was coming to an end, gynecologists and other researchers finalized their publications to improve the health of women and their babies. The formation of the placenta or the study of preeclampsia are some of the first and last stories that greet and say goodbye to 2024. Those of 2025 will be born soon.

An international consortium of thousands of scientists is creating the Human Cell Atlas, a three-dimensional map of all the cells in the body. The goal is to understand all the cells that make up human tissues, organs and systems, which will enable multiple medical applications. This collection of cell maps is openly available for navigation at single-cell resolution, identified through omics analyses that reveal the tridimensional distribution of each cell.