The edition · Diabetes & Endocrinology
Lean fatty liver still needs a fibrosis check
A 41-country biopsy series finds lean MASLD carries the same hard outcomes as the obese form, and that FIB-4 is weaker in exactly these patients. Plus the phase 3 retatrutide readout in type 2 diabetes, sleep problems in long-standing type 1, and a dressing trial for stalled foot ulcers.
The edition in brief
Lean MASLD: in 18,326 adults with biopsy-proven MASLD across 41 countries, the 6.7% who were lean had milder histology but no lower adjusted risk of death (aHR 0.90, 0.69–1.16) or liver events (aHR 0.94, 0.76–1.17). Fibrosis stage, not weight, tracked prognosis: F3–F4 was linked to more than three times the rate of liver events. FIB-4 performed slightly worse in lean patients (AUC 0.76) while transient elastography performed better (AUC 0.87). Retatrutide: in TRIUMPH-2, 1,152 adults with obesity and type 2 diabetes lost 16.8% (9 mg) and 18.8% (12 mg) of body weight at 80 weeks against 5.1% on placebo. Gastrointestinal effects were common, and hypotension, dysaesthesia and discontinuation for adverse events rose with dose. It is not approved anywhere. Sleep in type 1: among 963 DCCT/EDIC participants averaging 64 years old and 43 years of diabetes, 64% screened at intermediate or high risk of obstructive sleep apnoea and 43% reported poor sleep; each 1% higher HbA1c was associated with 15–20% higher odds of a sleep problem. Foot ulcers: in a 170-patient trial of ulcers that had failed four weeks of standard care, a collagen matrix with PHMB antimicrobial closed 42% of wounds at 12 weeks against 27% with standard care alone, with a lower confidence limit barely above zero.
Retatrutide in type 2 diabetes with obesity: up to 14% more weight loss than placebo at 80 weeks
Note the effect size for counselling, but keep using approved incretin therapies; retatrutide remains a trial drug.
Two in three older adults with long-standing type 1 diabetes screen at risk of sleep apnoea
Consider screening older adults with long-standing type 1 diabetes for sleep apnoea, especially those with autonomic neuropathy.
Collagen matrix with PHMB closed more stalled diabetic foot ulcers, by a narrow margin
Consider an antimicrobial collagen matrix only as an adjunct for ulcers that stall despite good offloading and debridement.
Cut the sulfonylurea or insulin when you start an incretin drug
When starting an incretin drug, reduce the sulfonylurea or insulin first and recheck at each dose step.
Lean fatty liver had milder histology but the same hard outcomes, and FIB-4 was weaker in it
In lean patients with diabetes and fatty liver, assess fibrosis as you would in obesity, and favour elastography over FIB-4 alone where you can.
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