Hepcidin Gene Co-Option Balancing Paternal Immune Protection and Male Pregnancy [PDF]
Frontiers in Immunology, 2022 Viviparity has originated independently more than 150 times in vertebrates, while the male pregnancy only emerged in Syngnathidae fishes, such as seahorses.
Wanghong Xiao +14 more
doaj +3 more sources
Regulatory Role of Retinoic Acid in Male Pregnancy of the Seahorse [PDF]
The Innovation, 2020 Summary: Seahorses epitomize the exuberance of evolution. They have the unique characteristic of male pregnancy, which includes the carrying of many embryos in a brood pouch that incubates and nourishes the embryos, similar to the mammalian placenta ...
Chunyan Li +9 more
doaj +3 more sources
The Roles of the Kisspeptin System in the Reproductive Physiology of the Lined Seahorse (Hippocampus erectus), an Ovoviviparous Fish With Male Pregnancy [PDF]
Frontiers in Neuroscience, 2018 The kisspeptin/GPR54 system plays a crucial role in the regulation of the reproductive axis in vertebrates. Male pregnancy and ovoviviparity are special reproductive phenomena among vertebrates.
Huixian Zhang +6 more
doaj +3 more sources
Microbial embryonal colonization during pipefish male pregnancy. [PDF]
Sci Rep, 2019 While originally acquired from the environment, a fraction of the microbiota is transferred from parents to offspring. The immune system shapes the microbial colonization, while commensal microbes may boost host immune defences.
Beemelmanns A +4 more
europepmc +7 more sources
Seahorse Male Pregnancy as a Model System to Study Pregnancy, Immune Adaptations, and Environmental Effects. [PDF]
Int J Mol Sci, 2023 Seahorses, together with sea dragons and pipefishes, belong to the Syngnathidae family of teleost fishes. Seahorses and other Syngnathidae species have a very peculiar feature: male pregnancy.
Kloc M.
europepmc +2 more sources
Immunogenetic losses co-occurred with seahorse male pregnancy and mutation in tlx1 accompanied functional asplenia. [PDF]
Nat Commun, 2022 In the highly derived syngnathid fishes (pipefishes, seadragons & seahorses), the evolution of sex-role reversed brooding behavior culminated in the seahorse lineage’s male pregnancy, whose males feature a specialized brood pouch into which females ...
Liu Y +19 more
europepmc +2 more sources
Frontiers in Marine Science, 2023 The syngnathid fish group (seahorses, pipefishes and seadragons) is a fascinating lineage associated with an array of evolutionary peculiarities that include diverse morphologies and their unique male pregnancy. These oddities also extend to their immune
Jamie Parker, Arseny Dubin, Olivia Roth
doaj +2 more sources
Evolution of male pregnancy associated with remodeling of canonical vertebrate immunity in seahorses and pipefishes. [PDF]
Proc Natl Acad Sci U S A, 2020 Significance Among vertebrates, pregnancy has evolved more than 150 times independently. A fundamental problem for pregnancy to evolve is inadvertent rejection of the embryo when being recognized as foreign tissue by the vertebrate’s adaptive immune ...
Roth O +11 more
europepmc +2 more sources
Time-critical influences of gestational diet in a seahorse model of male pregnancy.
J Exp Biol, 2020 Sex role reversal is not uncommon in the animal kingdom but is taken to the extreme by the Syngnathidae, in which male pregnancy is one of the most astonishing idiosyncrasies.
Otero-Ferrer F +7 more
europepmc +2 more sources
Male partners’ involvement in pregnancy related care among married men in Ibadan, Nigeria
Reproductive Health, 2020 Background Maternal death remains a public health burden in the developing countries including Nigeria and the major causes are pregnancy related. Lack of male involvement in pregnancy related care is one of the contributing factors.
Olayinka Falade-Fatila +1 more
doaj +2 more sources