Results 1 to 10 of about 387,951 (142)
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 +2 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 +2 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 +2 more sources
Microbial embryonal colonization during pipefish male pregnancy. [PDF]
Sci Rep, 2019 AbstractWhile 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. Parental transfer of microbes in viviparous animals remains ambiguous, as the two transfer routes (transovarial vs ...
Beemelmanns A +4 more
europepmc +6 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 +1 more source
Frontiers in Marine Science, 2023 Endocrine disruptors have devastating impacts on the reproductive physiology of aquatic organisms. The Gulf pipefish, Syngnathus scovelli, is a sexually dimorphic species, which demonstrates predictable morphological, physiological, behavioral, and ...
Emily Rose +3 more
doaj +1 more source
Frontiers in Endocrinology, 2022 Neurohypophysial hormones regulate the reproductive behavior of teleosts; however, their role in the gestation and parturition of ovoviviparous fishes with male pregnancy (syngnathids) remains to be demonstrated.
Huixian Zhang +9 more
doaj +1 more source
A delusion of pregnancy in man with hyperprolactinemia
European Psychiatry, 2021 Introduction A delusion of pregnancy in men has been rarely reported in psychiatric disorders. The literature on this delusion in male schizophrenia is limited. It was reported especially in medical conditions.
A. Aissa +5 more
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Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2023 Background Pregnancy loss has been associated with myocardial infarction, stroke, and all‐cause mortality in women through unknown mechanisms. The aim of this study was to examine these associations in women and their male partners.
Anders Pretzmann Mikkelsen +6 more
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Increased pregnancy after reduced male abstinence [PDF]
Systems Biology in Reproductive Medicine, 2013 This study was conducted to test the hypothesis that continuous epididymal sperm depletion after recurrent ejaculations (REC) in contrast to a period of abstinence (ABS) results in a decreased level of sperm DNA fragmentation (SDF) and a consequent increased rate of pregnancy.
Pascual, Sánchez-Martín +3 more
openaire +2 more sources