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Vitamin K2 inhibits prostaglandin synthesis in cells by inhibiting prostaglandin H synthase
ncbi ^ | 1993 Oct 19;46(8):1355-62. | Hoshi K, Shiraki M.

Posted on 06/08/2019 10:42:55 PM PDT by Rabin

Prostaglandin, a potent bone-resorbing agent, is synthesized in osteoblast-like cells. Since vitamin K reportedly plays an important role in (viscosity, clotting &) bone metabolism, we investigated the effects of vitamin K2 (menatetrenone) on PGE2 production by human osteoblast-like periosteal cells. In cells incubated with menatetrenone (1 microgram/mL = 2.25 x 10(-6) M) for 2 days, PGE2 production was reduced to 50% of that in untreated control cells. In one of these menatetrenone at doses of 0.5-10 micrograms/mL dose dependently inhibited the calcium ionophore A23187-induced release of arachidonic acid (AA) from membrane phospholipids, and in the other the conversion of AA to PG was inhibited, as evidenced by the PG-synthesizing activity in the homogenates of menatetrenone-treated cells with AA being lower than that in untreated cells. The inhibitory effect was almost identical to that for PG production. This study shows that menatetrenone inhibited PGE2 release from cells by inhibiting both PG production steps, AA release from the membrane and PG synthesizing activity with AA. Inhibition of PGE2 production by menatetrenone might be important in improving bone metabolism.

(Excerpt) Read more at ncbi.nlm.nih.gov ...


TOPICS: Heated Discussion
KEYWORDS: endocrine; prostaglandin; vitamink; vitk
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Inner-space connections. Vit K to bone health, who'da thunk.

Rab.

1 posted on 06/08/2019 10:42:55 PM PDT by Rabin
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To: Rabin

There’s always Natto.


2 posted on 06/08/2019 10:47:57 PM PDT by Stentor
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To: Rabin

What’s it mean?


3 posted on 06/08/2019 10:52:21 PM PDT by 2ndDivisionVet (You can't invade the mainland US. There'd be a rifle behind every blade of grass.)
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To: Rabin

This article should eschew obfuscation and say what it means in clear english. I read it and it says nothing except obscure jargon except maybe to experts in this medical area. Is this a cure for toe fungus?


4 posted on 06/08/2019 11:03:15 PM PDT by MtnClimber (For photos of ColoraTake up ado scenery and wildlife, click on my screen name for my FR home page.)
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To: 2ndDivisionVet

“What’s it mean?”

This is what’s cool about real science.

It means exactly what is says:

“This study shows that menatetrenone inhibited PGE2 release from cells by inhibiting both PG production steps, AA release from the membrane and PG synthesizing activity with AA.”

And then it does make a statement of what it could do - and note the word might:

“Inhibition of PGE2 production by menatetrenone might be important in improving bone metabolism.”


5 posted on 06/08/2019 11:03:21 PM PDT by ifinnegan (Democrats kill babies and harvest their organs to sell)
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To: MtnClimber

You’re 100% wrong.

It’s very straightforward and direct and simple.


6 posted on 06/08/2019 11:04:49 PM PDT by ifinnegan (Democrats kill babies and harvest their organs to sell)
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To: ifinnegan

I think it depends if this is you subject, you know.

I’m with the other guy, to me it is a huge amount of babble.

But it’s not my subject.


7 posted on 06/08/2019 11:10:24 PM PDT by cba123 ( Toi la nguoi My. Toi bay gio o Viet Nam.)
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To: cba123

What’s your subject?

It is not babble at all.


8 posted on 06/08/2019 11:26:21 PM PDT by ifinnegan (Democrats kill babies and harvest their organs to sell)
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To: Rabin

bump


9 posted on 06/08/2019 11:38:07 PM PDT by gattaca ("Government's first duty is to protect the people, not run their lives." Ronald Reagan)
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To: 2ndDivisionVet; MtnClimber

Do I want prostaglandin H synthase inhibited in my osteoblast-like cells?


10 posted on 06/09/2019 12:19:40 AM PDT by DannyTN
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To: ifinnegan

Roger, got it. The problem is that I went to government schools, so can you translate it for me please?


11 posted on 06/09/2019 1:22:12 AM PDT by fini
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To: 2ndDivisionVet
What’s it mean?

Vit K plays a role in bone health.

What it doesn't say, which is VERY IMPORTANT is that Vit K blocks the action of certain blood thinners which could kill people who need to take them. A little information is a dangerous thing!

12 posted on 06/09/2019 1:27:35 AM PDT by outofsalt (If history teaches us anything, it's that history rarely teaches anything.)
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To: 2ndDivisionVet

It’s all Greek to me. Oops. Hope I didn’t offend anyone.


13 posted on 06/09/2019 2:04:31 AM PDT by FES0844
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To: outofsalt

You are absolutely correct. There is always an upside and a downside to everything we try to put out of balance.


14 posted on 06/09/2019 2:29:24 AM PDT by RichyTea (To those offended - take off your blinders)
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To: outofsalt

Aspirin?


15 posted on 06/09/2019 3:17:55 AM PDT by 2ndDivisionVet (You can't invade the mainland US. There'd be a rifle behind every blade of grass.)
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To: Rabin

I knew that. Now tell me something new.


16 posted on 06/09/2019 3:20:21 AM PDT by Sacajaweau
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To: Rabin

I just want to know what will increase metabolism and decrease the desire for for food for instant gratification.


17 posted on 06/09/2019 3:32:27 AM PDT by Boomer
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To: Rabin

I knew it!


18 posted on 06/09/2019 3:56:39 AM PDT by fruser1
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To: 2ndDivisionVet

Always take your D3 vitamins with K2.


19 posted on 06/09/2019 4:17:56 AM PDT by CTyank
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To: Rabin

This is an October 1993 journal article.

That’s over 25 years ago.... very old news in medical research. I normally try to cut off at 5 years old as the volume of new research information is great.


20 posted on 06/09/2019 4:27:39 AM PDT by tired&retired (Blessings)
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