ミギテユビ ニ キュウソクニ エソセイ ビョウヘン オ ショウジタ コウリンシシツ コウタイ ショウコウグン ノ 1レイ

A ７７‐year‐old female was referred to our clinic in July ４，２００８ with a week history of rapidly progressive necrotic skin lesions on her right fingers. She had been under treatments of mixed connective tissue disease（MCTD）since １９９１. Laboratory findings revealed prolongation of activated partial thromboplastin time（aPTT）and the presence of lupus anticoagulant. We diagnosed this case as MCTD followed by antiphospholipid syndrome（APS）. After the treatment of Prostaglangin E１and Sarpogrelate hydrochloride, low dose of oral aspirin was started. Necrotic lesions of her fingers improved gradually, and she was discharged in September２１. APS should be considered when we see rapidly progressive necrotic skin lesions on patients with collagen deseases

Correction: Association between ultraviolet radiation exposure dose and cataract in Han people living in China and Taiwan: A cross-sectional study.

[This corrects the article DOI: 10.1371/journal.pone.0215338.]

Effect of a Lens Protein in Low-Temperature Culture of Novel Immortalized Human Lens Epithelial Cells (iHLEC-NY2)

The prevalence of nuclear cataracts was observed to be significantly higher among residents of tropical and subtropical regions compared to those of temperate and subarctic regions. We hypothesized that elevated environmental temperatures may pose a risk of nuclear cataract development. The results of our in silico simulation revealed that in temperate and tropical regions, the human lens temperature ranges from 35.0 °C to 37.5 °C depending on the environmental temperature. The medium temperature changes during the replacement regularly in the cell culture experiment were carefully monitored using a sensor connected to a thermometer and showed a decrease of 1.9 °C, 3.0 °C, 1.7 °C, and 0.1 °C, after 5 min when setting the temperature of the heat plate device at 35.0 °C, 37.5 °C, 40.0 °C, and 42.5 °C, respectively. In the newly created immortalized human lens epithelial cell line clone NY2 (iHLEC-NY2), the amounts of RNA synthesis of αA crystallin, protein expression, and amyloid β (Aβ)1-40 secreted into the medium were increased at the culture temperature of 37.5 °C compared to 35.0 °C. In short-term culture experiments, the secretion of Aβ1-40 observed in cataracts was increased at 37.5 °C compared to 35.0 °C, suggesting that the long-term exposure to a high-temperature environment may increase the risk of cataracts