This study was designed to investigate the relationship between plasma lipid profile and acne. Acne patients (n = 181) and healthy volunteers (n = 130) matched in terms of both age and sex were enrolled. Plasma total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol, low-density lipoprotein cholesterol (LDL-C) and lipoprotein (LP)(a) levels were measured. TC, LDL-C and LP(a) levels in male and female patients with severe acne were significantly higher than in the healthy control group (P < 0.05). TG in male patients with severe and moderate acne was significantly higher than in the healthy control group (P < 0.05). LP(a) in male and female patients with mild, moderate and severe acne was significantly higher than in the healthy control group (P < 0.05). The constituent ratio of male and female patients with TC, TG, LDL-C and LP(a) over the normal range was significantly higher than in the healthy control group. In this study, acne patients were frequently associated with abnormal lipid profile, providing a new basis for further exploration of the pathogenesis, as well as new treatments, of acne vulgaris.
We propose a design for a high-efficiency backlight module that does not require a brightness enhancement film (BEF). With the high-efficiency backlight module it is possible to achieve almost the same half-luminance angle as a conventional edge-lit backlight module can achieve. The backlight system is comprised of a crisscross light guide plate (LGP) and one diffuser sheet. The crisscross LGP is composed of a LGP and optically patterned film (OPF). The backlight module allows light to be extracted through the direct guiding mode and top guiding mode, respectively. We controlled arrangement of the microstructures to increase the optical efficiency and the uniformity by two modes. Compared to the conventional edge-lit backlight module, there is a two-fold improvement in both the total optical efficiency and on-axis luminance with the high-efficiency backlight module.
The controllable deposition of hydroxyapatite (HA) on femtosecond lasers micro-patterned Titanium (Ti) plates was studied in simulated body fluid (SBF). Energy Dispersive Spectrometer analysis and X-ray Diffraction (XRD) analysis show that the hydroxyapatite deposites on the pattened titanium surface in 1.5 SBF and SEM studies show three growth modes of HA (homogeneous hydroxyapatite layer, needle-like structure, and plate-like structure) deposited at different spots of the Ti plate surface. This stereo reticular structure of hydroxyapatite could be regarded as promising candidate material for metal implantation.
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