#mitochondria

7 articles

Approach 4, conceptual metaphor, in palette D, bold color field. A single old brass pocket watch, photographed from a slightly high three-quarter angle, sits on a saturated mustard-yellow seamless backdrop. The watch case is cracked open and its glass is gone. One half of the gear train is clean and polished. The other half is corroded, with a dull green-black patina. A few fine droplets of clear liquid sit on the corroded gears, and one tiny electric green (#00e676) glint of oxidation shows at the edge of the damage. Hard but slightly diffused studio strobe from the upper left casts a crisp, short shadow on the yellow. The macro lens gives a shallow depth of field, with the sharpest focus on the split between healthy and damaged gears. The mood is cautionary, precise and quietly unsettling. No text or numerals appear on the dial.

Anti‑starački spoj spermidin pokazuje tamnu stranu u starim T‑stanicama

BY DR. SYNAPSE · 3. stu 2026.

Spermidin se često hvali kao anti‑starački poliamin, ali nova studija na mišjim T‑stanicama otkriva da može narušiti specifičnu skupinu starih imunoloških stanica. U senescencijskim CD49d‑ CD8+ T‑stanicama došlo je do pada mitohondrijske respiracije, iscrpljivanja antioksidativnih rezerva i fragmentacije mitohondrija, dok susjedne CD49d+ stanice nisu bile zahvaćene. Reakcija mladih stanica bila je drugačija, što čini dob ključnim čimbenikom. Ovo je preklinički rad, ne dokaz štetnosti kod ljudi, ali postavlja pitanje je li spermidin koristan za sve starije stanice.

Approach: conceptual metaphor. Palette: bold color field.

Subject: two identical brushed-steel analog pressure gauges side by side on a saturated mustard-yellow seamless backdrop, shot straight-on at eye level with a 85mm lens. The left gauge's needle swings down toward the low end, the right gauge's needle swings up into the high end, so they point in opposite directions. The dials are blank, with only unlabeled tick marks. A tiny electric green glass indicator lamp glows on the left gauge's rim. Lighting is a large softbox from the upper left, giving crisp highlights on the chrome bezels and short, clean shadows on the yellow surface. Shallow depth of field softens the background edges. Mood: playful, precise and tense, a visual argument between two opposing results.

longevity

NR smanjio epigenetsku starost mišića, HIIT podigao u suprotnom smjeru

BY HELIX WARD · 2. stu 2026.

NR i HIIT se često promoviraju kao načini da mišići ostanu mladi, ali nova studija u časopisu *Aging Cell* otkriva da njihovi učinci na epigenetske satove mogu biti suprotni. Petomjesečna suplementacija nikotinamid ribozidom (NR) povezana je s usporavanjem epigenetskog starenja mišića, osobito prema PCHannum, MEAT i DunedinPACE satovima. S druge strane, HIIT je pomaknuo neke satove prema bržem starenju, najviše primjetno na DunedinPACE. Vezu između njih mogli bi biti mitohondrije, jer su promjene u mišićnom mitohondrijskom sadržaju korelirane s promjenama u MEAT‑baziranom ubrzanju starosti. Evo što studija zaista pokazuje, što ne, i kako to interpretirati bez pretjeranog uzbuđenja.

Approach: conceptual metaphor. Palette: D, bold color field.

A tall glass of bright orange-gold liquid sits in the center of the frame, filled to the brim and overflowing down its sides, shot at a slight low angle. Beside it, a sealed, empty glass cylinder with a thin glass wall stays bone dry. A clear glass barrier stands between them, so the flow clearly never crosses. The backdrop is a saturated tomato-red seamless paper, with a glossy red surface reflecting both vessels. Hard, directional studio light from the upper left throws crisp, warm-neutral shadows and bright highlights along the glass rims and liquid droplets. One small electric green ring sits at the base of the empty cylinder as a subtle accent. Mood: tense, ironic, clean and editorial. Photorealistic, shallow depth of field, no text or labels.

supplements

Vaš CoQ10 dopire do krvi, ali ne i do mitohondrija

BY NOVA CHEN · 31. lis 2026.

Nedavno je ljudsko kliničko ispitivanje podvrglo iznimno popularni suplement za dugovječnost detaljnoj provjeri uz mišićne biopsije. Rezultati su nepovoljni za marketing: kod 40 zdravih starijih osoba (prosječna dob 74 godine) 400 mg CoQ10 dnevno tijekom 12 tjedana podiglo je razinu u krvi, ali nije promijenilo razinu u mišiću ni u mitohondrijama. Funckija mitohondrija, VO₂max, kontrola glukoze i tjelesna kompozicija također su ostali nepromijenjeni. Studija je mala, kratka i provodila se na robustnoj starijoj populaciji, a glavni autor je savjetnik za tvrtku Pharma Nord. Evo što je otkrila, što ne može zaključiti i kome bi ipak razgovor o CoQ10 mogao biti koristan.

Approach: conceptual metaphor. Palette: bold color field.

A single oversized brass balance scale sits on a saturated tomato-red seamless backdrop, photographed at a low three-quarter angle. One pan holds a small, glowing ember-orange coal that is cooling and dimming to grey ash at its edges, standing for inflammation. The other pan holds a tightly coiled, freshly cut green plant sprout with a tiny electric green (#00e676) tip, standing for repair and growth. The scale tips slightly toward the ember, leaving the viewer unsure which side is better. Hard but clean studio key light from upper left casts a crisp, graphic shadow across the red surface. Brass shows real fingerprints and fine scratches, and the ash has a visible powdery texture. The mood is tense, thoughtful and questioning, with the whole image shot at shallow depth of field and the fulcrum in sharp focus. No text, no markings on the scale.

supplements

NMN smiruje upalu mišića nakon treninga — ali po koju cijenu?

BY NOVA CHEN · 28. lis 2026.

NMN se prodaje kao pojačivač stanične energije, ali nova studija na mišićnim biopsijama otkriva neočekivanu cijenu. Nakon intenzivnog treninga s ograničenjem protoka krvi, doza od 1 200 mg dnevno potisnula je upalne signale poput TNF‑α i IL‑10, odgodila je jedan od popravnih markera i spriječila porast mitohondrijske gustoće od 171 % koji je zabilježen kod placeba. Iako je uzorak malen (11 neiskusnih mladih muškaraca) i rezultati preliminarni, postavlja se pitanje je li smanjenje upale uvijek poželjno nakon vježbanja.

**Approach:** Conceptual metaphor, in a bold color field palette (D).

A single ripe pomegranate, split open, on a saturated teal backdrop. It is the natural source of urolithin A's precursors. The camera sits at a slightly low three-quarter angle, close enough to show glossy, translucent arils. On the left half, the arils sit dull and tightly packed. On the right, a few arils hold a faint electric green glow, as if lit from within, hinting at a selective response in one place and not another. Behind the fruit, a thin copper wire runs across the frame and is unbroken on one side and fraying on the other, standing for arteries versus brain vessels. Soft, directional studio light from the upper left casts crisp shadows. Mood: curious, restrained, quietly hopeful. No text anywhere.

supplements

Urolithin A nije popravio arterije za 4 tjedna, ali je mozak reagirao

BY NOVA CHEN · 26. lis 2026.

U dvostruko slijepom ispitivanju 50 odraslih osoba starosti 40‑64 s pretilošću, 1.000 mg urolitina A dnevno tijekom četiri tjedna ne poboljšalo je flow‑mediated dilataciju, primarni ishod studije. Periferne mikro‑vaskularne mjere također nisu pokazale promjene. Međutim, hemodinamički odgovori mozga na zadatke bili su značajno veći kod uzimanja urolitina A nego kod placeba, iako se izvedba zadatka nije promijenila. Budući da je ovaj rezultat sekundaran i dolazi iz kratkog, malog pokusa, predstavlja smjernicu, a ne konačan zaključak. Evo što podaci pokazuju, što ne pokazuju i što to znači za sve koji razmišljaju o dodatku.

Macro science approach: an extreme close-up of PQQ disodium salt, a deep reddish-orange crystalline powder, heaped on the tip of a stainless steel micro-spatula. The camera is low, at a slight 30-degree angle, with a very shallow depth of field. The nearest crystals are razor sharp, showing faceted, glassy edges and fine granular dust, while the rest of the pile melts into soft blur. A single large softbox from the upper left creates bright specular glints on the crystal faces and a crisp, warm shadow. The backdrop is a smooth, saturated teal-green color field that contrasts strongly with the red-orange subject. A few stray grains rest on the matte teal surface below. A faint electric green reflection runs along the spatula's edge. The mood is precise, curious and scrutinizing, like an ingredient under inspection. No text or labels.

supplements

PQQ pojačao pamćenje za 12 tjedana, i kod mladih i kod starijih osoba

BY NOVA CHEN · 25. lis 2026.

Dvostruko‑slijep, placebom kontroliran pokus otkrio je da 20 mg/dan PQQ‑disodijske soli poboljšava rezultate pamćenja kod odraslih od 20 do 65 godina nakon 12 tjedna. Vrijeme učinka ovisi o dobi: mlađi sudionici su do 8. tjedna iskusili poboljšanja u kognitivnoj fleksibilnosti i brzini, dok su stariji (41‑65) pokazali napredak u verbalnom i složenom pamćenju tek nakon 12 tjedana. Problem je što su autori zaposlenici tvrtke Mitsubishi Gas Chemical, proizvođača PQQ‑ingredijenta, a u sažetku nedostaje informacija o veličini uzorka. Evo što je studija pokazala, što nije, i kako je interpretirati prije kupnje bočice.

**Approach: Lab in action. Palette: D, bold color field (teal).**

Overhead three-quarter angle on a gloved hand holding a small insulin-style syringe over a tray of mouse-muscle tissue samples. The nitrile glove is bright white, and the backdrop is a saturated teal lab bench surface with a soft sheen. Tiny clear microtubes sit in a rack, and a few contain a faint amber liquid. One thin electric green cap on a tube is the only green accent. The lighting is bright, even studio-like lab light with crisp, soft-edged shadows and a gentle highlight on the syringe barrel and a single hanging droplet at the needle tip. The depth of field is shallow, so the background tubes blur into teal. The mood is precise, focused and quietly hopeful, with no readable text or labels anywhere.

peptides

Jedna doza SS‑31: stare mišićne mitohondrije počinju raditi kao mlade za sat vremena

BY HELIX WARD · 22. lis 2026.

Jedna injekcija, šezdeset minuta – mitohondrije u starim štakima počele su proizvoditi energiju poput one kod mladih životinja. Tako glasite iz studije iz 2013. godine u časopisu *Aging Cell* koja je ispitivala peptid SS‑31 (elamipretid). Važno je naglasiti da su to rezultati na miševima, a ne na ljudima.