The First Cohort — Journal of Record homepage, Vol. I No. 142, June 13 2026, numbered contents index of eleven medical research stories grouped by beat

Vol. I, No. 142  ·  Friday, June 13, 2026  ·  Evidence-led medical research news

The First Cohort Medical research, with the receipts

Contents — Issue 142

01

A Korean lab found cancer’s DNA-repair off-switch. In a mouse.

A tool compound strips the DNA-repair proteins tumors use to dodge PARP inhibitors. Preclinical only — but the gap between treated and control animals is the story.

Lena Marshall6 min read

Tumor clearance at 8 weeks % of animals with no detectable tumor 94% Treated 12% Control Source: Kim et al., 2026 (preprint). Mouse xenograft model, n=48.

Preclinical results; not yet peer-reviewed.

02

Where your sodium actually comes from

About 71% of dietary sodium arrives via processed and restaurant food — the saltshaker accounts for 6–20%. The gap matters for how any reduction target is designed.

03

Europe had this sunscreen in 1999. The FDA approved it Tuesday.

A 27-year regulatory lag on a UV-filter already standard across the EU. What the approval timeline reveals about how the FDA handles cosmetic-grade actives.

04

A DoD-funded fentanyl vaccine is headed to Phase 1

Antibodies that sequester fentanyl before it crosses the blood-brain barrier. Defense funding, a novel adjuvant formulation, and a supply crisis that changes the risk calculus.

05

The Alzheimer’s drug that bets the plaques are a symptom

A new therapeutic target downstream of amyloid, premised on the contested idea that plaque accumulation is effect rather than cause. The trial design that tests the hypothesis.

06

Fish oil rewired the T-cells in non-obese diabetic rats

Omega-3 supplementation shifted regulatory T-cell populations in an NOD mouse model; the mechanism points toward prostaglandin pathways. Animal data; human extrapolation is speculative.

07

ALTAIR missed its endpoint. The press tour found something else.

The trial failed on progression-free survival. The sponsor’s communications team surfaced a subgroup. The subgroup was not pre-specified.

08

The thin trial behind England’s next supermarket-layout mandate

A proposed shelf-positioning rule affecting every major grocer rests on a single observational study with 340 participants and no randomization. The policy timeline presses ahead regardless.