Clinical and pathological characteristics of HR+ breast cancer with HER2 low and HER2(0) expression: exploring endocrine therapy sensitivity.

Background: The clinical significance of human epidermal growth factor receptor 2 (HER2) low and HER2(0) expression in hormone receptor-positive (HR+) breast cancer patients remains uncertain. This study aimed to explore the clinical and pathological characteristics, prognosis, and endocrine therapy (ET) sensitivity among HR+ breast cancer patients with HER2 low and HER2(0) expression.

Methods: We conducted a retrospective analysis of 390 HR+, HER2-negative breast cancer patients who underwent radical surgery at The First Affiliated Hospital of Bengbu Medical University between December 2014 and December 2017.

Study on the Role of microRNA-138-5p Through Sorbin and SH3 Domain-Containing Protein 2 in Breast Cancer.

Breast cancer (BRCA) is one of the major threats to women's health worldwide. This study focuses on the roles of sorbin and SH3 domain-containing protein 2 (SORBS2) protein and microRNA-138-5p in the progression of BRCA, analyzing their regulatory effects on cancer cell proliferation, cell cycle, and migration ability. Using bioinformatics tools and experimental methods, the study found that SORBS2 is commonly underexpressed in BRCA.

Impacts of different soil fertility improvement practices with film mulched ridge-furrow til-lage on soil nutrient content, maize yield, and water use efficiency in Northwest China.

Improvement of soil quality is one of the most important ways to enhance fertility for efficient dryland crop production. However, the effects of different fertilization measurements with film mulched ridge-furrow tillage on soil fertility, crop yield, and water use efficiency (WUE) of maize largely remain unknown. A three-year field experiment was conducted at the Zhuanglang Experimental Station, Gansu Academy of Agricultural Sciences, located in the semiarid region of the Loess Plateau, Northwest China during 2014-2016.

Influencing Mechanism of the Selenization Temperature and Time on the Power Conversion Efficiency of Cu2ZnSn(S,Se)4-Based Solar Cells.

Cu2ZnSn(S,Se)4 (CZTSSe) films were deposited on the Mo-coated glass substrates, and the CZTSSe-based solar cells were successfully fabricated by a facile solution method and postselenization technique. The influencing mechanisms of the selenization temperature and time on the power conversion efficiency (PCE), short-circuit current density (Jsc), open-circuit voltage (Voc), and fill factor (FF) of the solar cell are systematically investigated by studying the change of the shunt conductance (Gsh), series resistance (Rs), diode ideal factor (n), and reversion saturation current density (J0) with structure and crystal quality of the CZTSSe film and CZTSSe/Mo interface selenized at various temperatures and times. It is found that a Mo(S1-x,Sex)2 (MSSe) layer with hexagonal structure exists at the CZTSSe/Mo interface at the temperature of 500 °C, and its thickness increases with increasing selenization temperature and time.

Paeoniflorin improves regional cerebral blood flow and suppresses inflammatory factors in the hippocampus of rats with vascular dementia.

Objective: To explore the delayed neuroprotection induced by paeoniflorin (PF), the principal component of Paeoniae radix prescribed in Chinese medicine, and its underlying mechanisms in rats subjected to vascular dementia (VD).

Methods: A rat model of VD was induced by bilateral common carotid arteries occlusion (BCCAO). Low-dose or high-dose PF (20 or 40 mg/kg once per day) was administrated for 28 days after VD.

Improved performance of ZnO light-emitting devices by introducing a hole-injection layer.

ZnO p-n homojunction light-emitting devices (LEDs) have been fabricated, and by introducing a p-type GaN as the hole-injection layer, the output power of the LEDs can reach 18.5 μW when the drive current is 60 mA, which is almost three orders of magnitude larger than the pristine LEDs without the hole-injection layer. The improved performance can be attributed to the extra holes injected into the p-ZnO layer from the p-GaN hole-injection layer.

[Effect of Sijunzi decoction on the proliferation of side population cells of human gastric cancer cell line].

Objective: To observe the proliferation changes of the side population of gastric cancer cell line SGC-7901 cells (SP), the non-side population (NSP) cells, and unsorted cells (Total) after intervened by Sijunzi Decoction (SD) containing serum.

Methods: Sixteen pure bred New Zealand rabbits were equally divided into the normal control group, the low dose SD group (at the daily dose of 7 mL/kg), the middle dose SD group (at the daily dose of 14 mL/kg), and the high dose SD group (at the daily dose of 28 mL/kg) according to the random digit table. Rabbits' serum was extracted after equal volume of corresponding medication was given by gastrogavage twice daily for 2 consecutive weeks.

Taurine rescues vascular endothelial dysfunction in streptozocin-induced diabetic rats: correlated with downregulation of LOX-1 and ICAM-1 expression on aortas.

Macroangiopathy is a major complication of diabetes mellitus in which dysfunction of vascular endothelium induced by excessive oxidative stress is an early and key determinant. As an endogenous antioxidant, taurine possesses endothelial protective effect in vitro. LOX-1 is an endothelial receptor for oxidized low-density lipoprotein (oxLDL) which might mediate endothelial dysfunction and subsequent atherogenesis in diabetes.