March 1992 PMID 1627060

A study on the placental transport mechanism of vitamin K2 (MK-4).

H Iioka, S Akada, H Hisanaga, T Shimamoto, Y Yamada, I S Moriyama, M Ichijo

Mentions

5
Peak: 3 in Nov 2023
across 2 sources since Sep 2023

Extended reach

80,915
potential audience

Total likes

166

Video views

2,913

Mentions per month

Sep 2023 – Feb 2025

Where it's discussed

  • X / Twitter3 posts
  • YouTube2 videos

AI synopsis

What people are saying

Discussions revolve around the potential benefits of DCC in ensuring infants receive adequate vitamin K, with comments highlighting how the study supports this idea, such as 'dcc would actually ensure baby gets the right amount of vit k.' The tone combines supportive remarks with attempts to connect the research to practical caregiving, reflecting moderate interest and engagement that could influence caregiving approaches.

AgreementModerate agreement

Most discussions imply support for the importance of vitamin K2 transfer, particularly regarding the benefits of supplementation like DCC, despite varying interpretations of the study’s specifics.

InterestModerate interest

Participants show moderate interest, mainly focused on practical implications (e.g., DCC and vitamin transfer) rather than detailed mechanisms.

EngagementModerate engagement

The exchanges involve some interpretation and slightly deeper discussion about the relevance of the study’s findings, indicating an average level of engagement.

ImpactModerate impact

The posts suggest the study influences thoughts on neonatal vitamin transfer and potential supplementation practices, indicating a modest but tangible impact.

Abstract in brief

  • The study investigated how vitamin K2 MK4 is transported from mother to fetus through the human placenta, finding that without supplementation, vitamin K2 levels are very low or undetectable in fetal blood and placental tissue.
  • When pregnant women took vitamin K2 supplements, levels increased in maternal blood, placental tissue, and umbilical cord blood, suggesting the placenta allows some transfer of vitamin K2, with higher transport activity observed later in pregnancy.
  • In vitro experiments indicated that vitamin K2 transport into placental tissue is passive rather than active, with evidence pointing to a specific transport system, and overall, vitamin K2 transfer into the fetus is less direct compared to vitamin K1, though it still occurs relatively well.]

Top posts

Most liked on X and Bluesky
Chris Masterjohn
@ChrisMasterjohn · X

@AlastairMcA30 38. Iioka H, Akada S, Hisanaga H, Shimamoto T, Yamada Y, Moriyama IS, Ichijo M. A study on the placental transport mechanism of vitamin K2 (MK-4). Asia Oceania. J Obstet Gynaecol. 1992;18(1):49-55. 39. Iioka H, Moriyama IS, Mormoto K, Akada S, Hisanaga H, Ishihara Y, Ichijo M.

Nov 17, 2023 · 3 likes · 76,268 followers View post →
trillionofcells
@trillionofcells · X

@drdsanders @Seasunned1 @ChildrensHD My bad, yes, sorry for incoherence. I discovered though that dcc would actually ensure baby gets the right amount of vit k till breastfeeding begins. "A study on the placental transport mechanism of vitamin K2 (MK-4)" fyi, this study doesn't mention dcc. https://t.co/i27cuOJXAU

Nov 21, 2023 · 867 followers View post →

All mentions

trillionofcells
@trillionofcells · X

@drdsanders @Seasunned1 @ChildrensHD My bad, yes, sorry for incoherence. I discovered though that dcc would actually ensure baby gets the right amount of vit k till breastfeeding begins. "A study on the placental transport mechanism of vitamin K2 (MK-4)" fyi, this study doesn't mention dcc. https://t.co/i27cuOJXAU

Nov 21, 2023 · 867 followers View post →
trillionofcells
@trillionofcells · X

@Seasunned1 @drdsanders @ChildrensHD No problem. I found even further proof that dcc would mean the baby gets all the vitamins including vit k "A study on the placental transport mechanism of vitamin K2 (MK-4)" https://t.co/i27cuOJXAU

Nov 21, 2023 · 867 followers View post →
Chris Masterjohn
@ChrisMasterjohn · X

@AlastairMcA30 38. Iioka H, Akada S, Hisanaga H, Shimamoto T, Yamada Y, Moriyama IS, Ichijo M. A study on the placental transport mechanism of vitamin K2 (MK-4). Asia Oceania. J Obstet Gynaecol. 1992;18(1):49-55. 39. Iioka H, Moriyama IS, Mormoto K, Akada S, Hisanaga H, Ishihara Y, Ichijo M.

Nov 17, 2023 · 3 likes · 76,268 followers View post →