Successful Treatment of Chronic Actinic Dermatitis with Tofacitinib.

We present the case of a 58-year-old male patient who presented with pruritic skin plaques and papules on the scalp, face, back, and back of the hands for over a year. The symptoms worsened upon exposure to sunlight and improved on cloudy days. Despite previous attempts at treatment with glucocorticoid ointment and antihistamine drugs, the patient experienced progressive aggravation of symptoms.

A Case of Penile Squamous Cell Carcinoma Associated with HPV58 Infection.

We report the case of a 55-year-old man with penile squamous cell carcinoma (SCC). We found a mass in the patient's penis, which gradually increased in size. We performed a partial penectomy to remove the mass.

Relationship Between the Structure and Immune Activity of Components From the Active Polysaccharides APS-II of Astragali Radix by Enzymolysis of Endo α-1,4-Glucanase.

Astragali Radix polysaccharides (APSs) have a wide range of biological activities. Our preliminary experiment showed that APS-Ⅱ (10 kDa) was the main immunologically active component of APSs. However, the characteristic structure related to activity of APS-Ⅱ needs further verification and clarification.

Dehydration of Ions in Voltage-Gated Carbon Nanopores Observed by in Situ NMR.

Ion transport through nanochannels is of fundamental importance in voltage-gated protein ion channels and energy storage devices. Direct microscopic observations are critical for understanding the intricacy of ionic processes in nanoconfinement. Here we report an in situ nuclear magnetic resonance study of ion hydration in voltage-gated carbon nanopores.

Electroneutrality breakdown and specific ion effects in nanoconfined aqueous electrolytes observed by NMR.

Ion distribution in aqueous electrolytes near the interface plays a critical role in electrochemical, biological and colloidal systems, and is expected to be particularly significant inside nanoconfined regions. Electroneutrality of the total charge inside nanoconfined regions is commonly assumed a priori in solving ion distribution of aqueous electrolytes nanoconfined by uncharged hydrophobic surfaces with no direct experimental validation. Here, we use a quantitative nuclear magnetic resonance approach to investigate the properties of aqueous electrolytes nanoconfined in graphitic-like nanoporous carbon.

[Vertical variability of Pinus sylvestris var. mongolica tree ring delta13C and its relationship with tree ring width in northern Daxing' an Mountains of Northeast China].

A measurement was made on the vertical direction tree ring stable carbon isotope ratio (delta13C) and tree ring width of Pinus sylvestris var. mongolica in northern Daxing' an Mountains of Northeast China, with the relationship between the vertical direction variations of the tree ring delta13C and tree ring width analyzed. In the whole ring of xylem, earlywood (EW) and bark endodermis, the delta13C all exhibited an increasing trend from the top to the base at first, with the maximum at the bottom of tree crown, and then, decreased rapidly to the minimum downward.