Microscopic evidence for nanoparticle-mediated growth of native gold in sulfide deposits at the Higashi-Aogashima Knoll Caldera hydrothermal field.

Gold (or electrum) in hydrothermal fluid precipitates directly from gold sulfide complex and/or partly via suspended nanoparticles. The hydrothermal fluid contains "invisible gold" that is atomically dispersed in sulfide minerals or as nanoparticles with a size of less than 10 nm. However, the contribution of these gold nanoparticles to the formation of native gold and its alloy with silver (electrum) remains unclear.

Therapeutic effects of intracerebral transplantation of human modified bone marrow-derived stromal cells (SB623) with voluntary and forced exercise in a rat model of ischemic stroke.

Ischemic stroke results in significant long-term disability and mortality worldwide. Although existing therapies, such as recombinant tissue plasminogen activator and mechanical thrombectomy, have shown promise, their application is limited by stringent conditions. Mesenchymal stem cell (MSC) transplantation, especially using SB623 cells (modified human bone marrow-derived MSCs), has emerged as a promising alternative, promoting neurogenesis and recovery.

Pyoderma Gangrenosum With Severe Ankle Ankylosis Complicated by Rheumatoid Arthritis Successfully Treated Using Anti-tumor Necrosis Factor: A Case Report.

Pyoderma gangrenosum (PG) is a rare dermatosis characterised by necrotic ulcers with a predilection mainly for the lower legs. We report a case of a 67-year-old man with PG and severe ankle ankylosis complicated by rheumatoid arthritis (RA) treated with anti-tumor necrosis factor, adalimumab (ADA). He was referred to our hospital because his right ankle showed severe ulcers and blackening.

Modified Damus-Kaye-Stansel Anastomosis to Prevent Coronary Obstruction Between the Great Arteries.

The conventional Damus-Kaye-Stansel procedure may cause coronary artery compression when the coronary arteries are situated between the great arteries. We have performed a modified Damus-Kaye-Stansel procedure utilizing a "flap-bridging technique," in which an inverted U-shaped flap incised from the aorta is bridged to the main pulmonary trunk, creating sufficient space between the great arteries, in an 8-month-old boy who was a Fontan candidate with congenitally corrected transposition of the great arteries. This modified approach yielded favorable outcomes without coronary events and can effectively prevent coronary obstruction in cases where the coronary arteries run between the great arteries.

Repeated non-hemorrhagic and non-contusional mild traumatic brain injury in rats elicits behavioral impairment with microglial activation, astrogliosis, and tauopathy: Reproducible and quantitative model of chronic traumatic encephalopathy.

Chronic traumatic encephalopathy (CTE) has attracted attention due to sports-related head trauma or repetitive mild traumatic brain injury (mTBI). However, the pathology of CTE remains underexplored. Reproducible and quantitative model of CTE has yet to be established.