An 8-month trial in mostly females (17/18) with #obesity & type 2 #diabetes, shows that those randomized to an *intensive* #lifestyle intervention (n=10) e.g. had:

⦿ notable #weightloss (-17%)
⦿ ~63% ⬇️ intrahepatic fat

+ marked metabolic benefits 🧵>
cell.com/cell-metabolis…
The standard group received "regular" (ADA-guided) instructions on diet & activity.

The intensive lifestyle group had:
⦿ weekly education sessions,
⦿ ⬇️ kcal intake by 500/d &
⦿ 4 x 60-min supervised progressively 📈harder – both resistance & endurance! – training sessions
2/
Energy intake was adjusted to ⬇️ Bw by >10% in 6 months.

The lifestyle intervention was overall quite intensive, & frequent face-to-face contact may have facilitated adherence:

Attendance was 92-98% – possibly facilitated by the rather small sample size, but still impressive
3/
The authors highlight that employers now often provide wellness programs to improve employee health & productivity – 84% of large U.S. companies have this.

This should also target #sleep of course, which unfortunately was not mentioned or measured in the present paper
(4/)
The intensive intervention also ⬆️ the expression of genes involved in mitochondrial oxidation/function & NAD signaling, in skeletal #muscle.

In an oral glucose test, they found plasma glucose & insulin concentrations only ⬇️ in the intense lifestyle group (by ~20-25%)
(5/)
Just to highlight how impressive the successive #weightloss was in the intensive #lifestyle vs. standard-of-care group in this trial – over the course of the 8-month intervention period – we can add a screenshot of one of their supplemental figures:

(6/n)

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More from @JCedernaes

Oct 3
2 new studies have examined the #myocarditis risk after COVID-19 vaccines:

At age <40, #SARSCoV2 carried a ⬆️ risk – apart from Moderna's — not given to ages <30y in e.g. Sweden.

Highest in ages 12-17y for dose 2-3:
~1 case /5320-7300 doses

But ⬇️ risk with longer interval
🧵
The @AnnalsofIM study included all cases in those age 5-39 y (overall incidence was 1 per 30 000 - 200 000 doses), but via U.S. (active) VSD & (passive) VAERS reporting systems.

However, in the U.S., short doses intervals have been used (e.g. 3 wks for Pfizer 1-2)

(3/)
Read 13 tweets
Oct 3
Kort intervju med mig (klipptes ned ganska rejält tyvärr ha, och usel vinkel)

Mycket som vi inte vet om de långsiktiga effekterna med den ökade användning av sömnmdel för barn, som även ses i Sverige
svt.se/nyheter/lokalt…
Som en indikation på ⬆️ användning bland barn:

I USA har antalet förgiftningar kopplade till melatonin bland barn (≤19 år) ⬆️ markant (ffa. ≤5 år (!)), med 530% under 2012-2021

I USA säljs det sen länge som kosttillskott, därav mkt oreglerad dos osv.
cdc.gov/mmwr/volumes/7…
I den här 🧵, kan ni läsa mer om vad effekterna av melatonin är på blodtryck (de flesta studier tycks visa ⬇️ BT hos vuxna)



(3/)
Read 4 tweets
Jan 27
How #sleep loss may make physical #exercise more challenging for the #heart:

We find that sleep loss ⬆️ the exercise 🚴‍♀️-induced ⬆️ in blood levels of a #cardiac stress biomarker vs. after normal sleep

But note, exercise is essential for your health
🧵->
sciencedirect.com/science/articl… Image
2/ Extensive epidemiological data has found that sleep impacts the risk of cardiovascular disease (CVD).

E.g. @uk_biobank (n~408k):

Vs. 7 h, sleep duration of ≤5 h & ≥9 h were associated with higher risk of CVD mortality & incidence (~+8-30%).

sciencedirect.com/science/articl…
3/ And elegant human experimental studies have shown that curtailed #sleep can adversely impact🫀physiology.

For instance, shortened sleep can ⬆️ #bloodpressure in humans, seen both after overnight wakefulness academic.oup.com/sleep/article/… & shortened sleep ahajournals.org/doi/abs/10.116….
Read 23 tweets
Dec 11, 2021
Bra & dåliga nyheter gällande #Omicron:

God nyhet:

⦿ Preliminärt ger 3 vaccindoser ~70-75% skydd mot symptomatisk #COVID19 orsakad av Omicron
- åtminstone ~2 veckor efter dos 3 & hos yngre

Därmed antas vaccinskyddet mot svår C19 vara än högre

Trista nyheter-> 🧵
2/ Trista nyheter:

I jämförelse med smittsamma Delta tycks Omicron, *preliminärt*:

⬆️ Reinfektionsrisken 5x (3.4-7.8x) för de med tidigare COVID-19
⬆️ ~2 ggr oddsratio att föra smittan vidare till nära kontakter
⬆️ ~3 ggr oddsratio att föra smittan vidare till hushållskontakter
3/ Trista nyheter:
*preliminära*

⦿ ~22% kontra tidigare 11% risk att en hushållskontakt smittas (secondary attack rate; SAR)
⦿ Smittan växer nu med dubblering var 2.5:e dag i Storbritannien – beräknas kunna ta över (dvs. majoritet av fallen) om någon vecka i Storbritannien.
Read 14 tweets
Dec 9, 2021
Viktigt att beakta nedanstående när man utvärderar Sydafrikas fallrapporter mm.

1/
2/ Reinfektioner är som regel - ej alltid - mildare.

"Reinfections had 90% lower odds of resulting in hospitalization or death than primary infections"

- Omicrons effekter ännu oklar, men ⬆️ reinfektionsrisken
-Vaccinering därmed viktigt för denna grupp
nejm.org/doi/full/10.10…
3/ Att reinfektioner (~2a exponering) ger mildare förlopp är jämförbart med hur vaccinen - fast via säker 1:a exponering för virusprotein - sänker risken för allvarlig COVID-19.

Oklart: Vissa tror att 2, särskilt 3 vaccindoser, kan ge hyfsat skydd mot allvarlig C19 av Omicron
->
Read 6 tweets
Aug 2, 2021
Pulmonary #embolism (lung blood clot) was >10 times more common after #SARSCoV2 infection (COVID19; ~15x over background rate), vs after getting #Pfizer's or #AstraZeneca's vaccine (~1.2x> background)

Similar greater risks with COVID-19 for #DVT & #VTE
🧵
medrxiv.org/content/10.110…
2) First of all – as the authors note – in those #vaccinated against COVID-19, "thrombosis, thrombocytopenia, and thrombosis with thrombocytopenia were very rare events."
3) Data from 1.9 Million (M) recipients of AstraZeneca, ~1.7 M of Pfizer, and ~300k COVID-19 cases (few old) – compared with ~2.3 M in the general population.

These cohorts were used to calculate the observed incidence vs. background (SIR) or observed vs. expected # of cases.
Read 8 tweets

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