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BACKGROUND The short-term effect of ambient air pollution on atopic dermatitis (AD), along with its effect modifiers, has not been fully addressed. OBJECTIVES To examine the short-term associations between air pollution and AD, and to identify effect modifications by age and season. METHODS We used the generalized additive model to evaluate the short-term effect of ambient air pollution on daily hospital visits for AD, adjusting for potential confounders. Subgroup analyses were performed to identify potential effect modifications by season and age (< 18 years and ≥ 18 years). RESULTS A total of 29 972 hospital visits for AD were recorded in Guangzhou, China, from 19 January 2013 to 31 December 2017. Among them, 72·8% were visits by children and 51·4% occurred in the cool season. Acute and delayed effects on AD hospital visits were significant for all air pollutants. Stronger effects were seen in the cool season (approximately 1·7-3·0 times higher than effects in the warm season). Stronger effects were also observed in children (approximately 1·3-1·8 times higher than effects in adults). Sensitivity analyses indicated the results were robust. CONCLUSIONS Air pollution might be an important trigger for AD in subtropical Guangzhou, China. Children are more vulnerable than adults, and the effects are stronger in the cool season.

To evaluate the short-term prognostic value of matrix metalloproteinase 14 (MMP14) in muscle-invasive bladder cancer (MIBC).Expression of MMP14 and clinical information from The Cancer Genome Atlas (TCGA) were mined in MIBC patients to analyse expression differences and conduct survival analyses. The mRNA and protein expression levels of MMP14 in other tumours were analysed using Gene Expression Profiling Interactive Analysis (GEPIA) and The Human Protein Atlas. The expression level of MMP14 in bladder cancer (BC) cell lines and clinical samples and its clinical significance were indicated using quantitative Real Time-Polymerase Chain Reaction (qRT-PCR), Western blotting, and immunohistochemistry. The biological functions of MMP14 were investigated by examining cell migration using in vitro wound-healing assays and cell invasion using transwell invasion assays. Survival analyses were conducted with the collected clinical follow-up data.Our study revealed that MMP14 is highly expressed in MIBC based, on both TCGA derived data and our clinical tissues (p0.05). MMP14 is also highly expressed in head and neck cancer, renal cancer, pancreatic cancer and other cancers, as analysed using GEPIA and The Human Protein Atlas (p0.05). Survival analyses of the TCGA data and our clinical follow-up data revealed high expression of MMP14 indicates a poor short-term prognosis in MIBC (p0.05). Furthermore, downregulation of MMP14 suppressed BC cell invasion and migration abilities in vitro. MMP14 expression was closely correlated with tumour metastasis (p0.05). T stage [hazard ratio (HR)=1.412, 95% confidence interval (CI)=1.121-1.779, p=0.003] and metastasis (HR=2.256, 95% CI=1.242-4.100, p=0.008) were unfavourable prognostic factors in BC patients.In MIBC, MMP14 expression is upregulated and closely associated with disease progression and poor short-term prognosis.

弥漫性大B细胞淋巴瘤（diffuse large B cell lymphoma，DLBCL）是一种具有高度异质性的侵袭性恶性肿瘤，这种异质性不仅表现在临床结局、遗传特征、细胞起源等方面，而且在能量代谢方面也存在着明显的异质性。根据能量代谢差异，DLBCL可分为以有氧糖酵解为主要代谢特征的B细胞受体（BCR）-DLBCL亚型和以氧化磷酸化（OxPhos）为主要代谢特征的OxPhos-DLBCL亚型。对于这两种不同代谢方式的DLBCL，有着差异显著的细胞调控通路。目前研究表明，BCR信号通路、bcl-6和自噬等调节BCR-DLBCL亚型细胞的有氧糖酵解过程；高度活化的线粒体功能基因和高表达的脂肪酸代谢关键基因等调节OxPhos-DLBCL亚型细胞的氧化磷酸化过程。靶向DLBCL的能量代谢差异及相关调控通路，可能为DLBCL患者的治疗和预后评估提供新的思路。.

To investigate the mechanisms of nuclear export signal of androgen receptor (NESThe green fluorescent protein fusion protein expression vectors pEGFP-AR(1-918aa), pEGFP-NESUnder the fluorescence microscope, NESNES

The aim of this study was to explore the effects and mechanisms of Icarisid II (ICA-II) on enhancing the cellular cGMP in rat corpus cavernosum tissue (RCCT). Diabetes mellitus Wistar rats were induced by streptozotocin, and diabetic ED rats were selected for the RCCT culture by apomorphine. ICA-II was extracted and purified from Icariin (ICA) by enzymatic method. The RCCT was treated with ICA-II, ICA and Sildenafil at different concentrations. cGMP and nitric oxide synthase (NOS) activities were checked respectively by enzyme immunoassay. Meanwhile, nNOS, iNOS and eNOS in RCCT were checked by western blot. ICA-II evaluated the intracellular cGMP to 8.01 ± 1.02 pmol mg(-1) min(-1), which is much weaker than that from Sildenafil (12.4 ± 1.16 pmol mg(-1) min(-1)) (P0.05). There is no significant difference between ICA-II and ICA. With the treatment of 10 μm ICA-II for 24 and 48 h, nNOS expression was significantly increased in RCCT (P0.05), while the eNOS expression level was very low without any change. Notably, ICA-II increased the intracellular NOS activity significantly in vitro in RCCT. Except the PDE5 inhibitory effect, ICA-II increases the intracellular cGMP through the enhancement of nNOS expression and NOS activity in RCCT in vitro. ICA-II implies a potential compound for neurogenic erectile dysfunction by NO-cGMP pathway.

To determine the role of GRIA3 in the etiology of Smith--Fineman--Myers syndrome (SFMS), polymorphic short tandem repeats within GRIA3 gene were genotyped by PCR and denaturing polyacrylamide gel electrophoresis to test linkage between GRIA3 and the gene responsible for SFMS. The open reading frame of GRIA3 was detected for mutation by PCR amplification and direct sequencing in affected and normal males from SFMS family. One of the two short tandem repeats was informative in SFMS family. Tight linkage between SFMS locus and GRIA3 gene was established by STR3 within GRIA3 gene. No disease--causing mutation was found within the open reading frame of GRIA3 gene. The disease in SFMS family from Shandong (China) is not caused by the mutation within open reading frame of GRIA3 gene.

(Na1-xKx)0.5Bi0.5TiO3 (NBT-KBT-100 x) thin films were deposited on Pt/Ti/SiO2/Si(100) by metal organic decomposition, and the effects of potassium content (x = 0.15, 0.18, 0.20, 0.25) on ferroelectric, piezoelectric, dielectric properties of the thin films, and the temperature dependence of dielectric permittivity of NBT-KBT-18 thin film were investigated in detail. NBT-KBT-18 thin film is of the largest effective piezoelectric coefficient d33eff, remnant polarization 2Pr, spontaneous polarization 2 Ps, dielectric constant ɛr, and the lowest dielectric loss among the thin films. The dielectric constants decrease steeply with the increase of frequency, and there are a series of resonance peaks with Debye-like relaxation. In dielectric temperature spectra, two abnormal peaks corresponding to depolarization temperature and Curie temperature are at the range of 75-90 °C and 295-320 °C, and they are associated with the phase transitions. Based on the dielectric relaxation theory, Debye-like relaxation and diff...