Induced ferromagnetism in Ni(II) doped ZnO monolayers via Al co-doping and their optical characteristics:study.

For applications in magneto-electronic devices, diluted magnetic semiconductors (DMSs) usually exhibit spin-dependent coupling and induced ferromagnetism at high Curie temperatures. The processes behind the behavior of optical emission and ferromagnetism, which can be identified by complicated microstructural and chemical characteristics, are still not well understood. In this study, the impact of Al co-doping on the electronic, optical, and magnetic properties of Ni(II) doped ZnO monolayers has been investigated using first principles calculations.

Effects of Maren Pills on the Intestinal Microflora and Short-Chain Fatty Acid Profile in Drug-Induced Slow Transit Constipation Model Rats.

Slow transit constipation (STC) is becoming a common and frequently occurring disease in today's society, and it is necessary to explore the safe and effective treatment of STC. Our study aimed to investigate whether the laxative effect of Maren pills (MRW) is associated with the regulation of intestinal microflora and intestinal metabolism in the colon. Loperamide hydrochloride-induced STC rats received MRW intragastrically for two consecutive weeks to evaluate the laxative effect of MRW involving the regulation of intestinal microflora, intestinal metabolism, and 5-HT signaling pathway.

Advances in Research on microRNAs Related to the Invasion and Metastasis of Nasopharyngeal Carcinoma.

Nasopharyngeal Carcinoma (NPC), which is associated with latent Epstein-Barr virus infection in most cases, is a unique epithelial malignancy arising from the nasopharyngeal mucosal lining. Accumulating evidence is providing insights into the genetic and molecular aberrations that likely drive nasopharyngeal tumor development and progression. We review recent analyses of microRNAs (miRNAs), including Epstein-Barr virus-encoded miRNAs (EBV-encoded miRNAs) and dysregulated cellular miRNAs, that may be related to the metastasis of nasopharyngeal carcinoma.

Diode laser combined with intradiscal vancomycin for iatrogenic discitis: an experimental study in rabbits.

Objective: The purpose of this study was to assess the efficacy of diode laser combined with intradiscal vancomycin for iatrogenic discitis (ID) infected with Staphylococcus aureus.

Background Data: In vivo and in vitro studies have reported that diode laser has a potential bactericidal effect on S. aureus.

Targeted proteomic analysis of 14-3-3sigma in nasopharyngeal carcinoma.

14-3-3sigma is a potential tumor suppressor, and loss of 14-3-3sigma expression plays an important role in carcinogenesis and metastasis. To explore the possible mechanism of 14-3-3sigma in nasopharyngeal carcinoma (NPC) invasion and metastasis, targeted proteomic analysis was performed on 14-3-3sigma-associated proteins from NPC cells. As the results, 112 proteins associated with 14-3-3sigma were identified, and four 14-3-3sigma-interacted proteins: keratin 8, epidermal growth factor receptor (EGFR), small GTP-binding protein RAB7, and p53 were confirmed by coimmunoprecipitation and Western blot analysis.

Proteomic analysis to identify cytokeratin 18 as a novel biomarker of nasopharyngeal carcinoma.

Purpose: In this study, we applied laser capture microdissection and a proteomic approach to identify novel nasopharyngeal carcinoma (NPC) biomarkers.

Methods: Proteins from pooled microdissected NPC and normal nasopharyngeal epithelial tissues (NNET) were separated by two-dimensional gel electrophoresis, and differential proteins were identified by mass spectrometry. Expression of the differential protein cytokeratin 18 in the above two tissues as well as 4 NPC cell lines was determined by Western blotting.

Inactivation of 14-3-3 sigma by promoter methylation correlates with metastasis in nasopharyngeal carcinoma.

14-3-3 sigma, the downstream target of p53, is a negative regulator of cell cycle G2-M phase checkpoint in response to DNA damage. Our previous comparative proteomics study showed that 14-3-3 sigma was downregulated or lost in nasopharyngeal carcinoma (NPC) tissue compared with non-cancerous nasopharyngeal epithelial tissue (NNET). In this study, we further investigated for the epigenetic mechanism of 14-3-3 sigma inactivation.

[Screening for differentially expressed proteins in nasopharyngeal carcinoma by laser capture microdissection and proteomic analysis].

Objective: To search for the differentially expressed proteins of nasopharyngeal carcinoma (NPC),and provide scientific evidence for identifying molecular biomarkers for NPC.

Methods: Laser capture microdissection (LCM) was used to purify the target cells from NPC and normal nasopharyngeal epithelial tissues (NNET). Two-dimensional gel electrophoresis (2-DE) was used to separate the total proteins of microdissected NPC and NNET, PDQuest software was applied to analyze 2-DE images,and the differential proteins between the 2 types of tissues were identified by both MALDI-TOF-MS and ESI-Q-TOF-MS.

Identificating cathepsin D as a biomarker for differentiation and prognosis of nasopharyngeal carcinoma by laser capture microdissection and proteomic analysis.

In this study, we applied laser capture microdissection and a proteomic approach to identify novel nasopharyngeal carcinoma (NPC) biomarkers. Proteins from pooled microdissected NPC and normal nasopharyngeal epithelial tissues (NNET) were separated by two-dimensional gel electrophoresis, and differential proteins were identified by mass spectrometry. Expression of the differential protein cathepsin D in the above two tissues as well as four NPC cell lines was determined by Western blotting.

Identification of novel nasopharyngeal carcinoma biomarkers by laser capture microdissection and proteomic analysis.

Purpose: To identify novel nasopharyngeal carcinoma (NPC) biomarkers by laser capture microdissection and a proteomic approach.

Experimental Design: Proteins from pooled microdissected NPC and normal nasopharyngeal epithelial tissues (NNET) were separated by two-dimensional gel electrophoresis, and differential proteins were identified by mass spectrometry. Expression of three differential proteins (stathmin, 14-3-3sigma, and annexin I) in the above two tissues as well as four NPC cell lines was determined by Western blotting.

IL-1beta sensitizes rat intervertebral disc cells to Fas ligand mediated apoptosis in vitro.

Aim: To determine the apoptotic effect of recombinant rat Fas Ligand on rat intervertebral disc cells pre-treated with IL-1beta in vitro, and the expression of Fas in cultured rat intervertebral disc cells.

Methods: Cells were isolated from the inner annulus fibrosus and transition zones of lumbar discs from Sprague-Dawley rats. The cells were grown in monolayer and divided in 5 treatment groups.

Diallyl disulfide suppresses growth of HL-60 cell through increasing histone acetylation and p21WAF1 expression in vivo and in vitro.

Aim: To examine the differentiation induction and growth inhibition of HL-60 cells by diallyl disulfide (DADS), and its relationship with the alterations of histone acetylation and p21(WAF1) expression in vitro and in vivo.

Methods: Differentiation was studied by nitroblue tetrazolium (NBT) reduction of HL-60 cell in vitro. HL-60 cells 5x10(6) were injected into the right side of the peritoneal cavity of severe combined immunodeficiency (SCID) mice.

Aspirin attenuates gentamicin ototoxicity: from the laboratory to the clinic.

This article reviews recent advances in the protection from the adverse auditory or vestibular side effects associated with antibacterial treatment with aminoglycoside antibiotics. Compelling evidence from animal models suggests that reactive oxygen species are part of the initial mechanisms that trigger apoptotic and necrotic cell death in the inner ear. Consequently, antioxidants protect against aminoglycoside-induced hearing loss in animals and, importantly, they do so without compromising drug serum levels or antibacterial efficacy.

[The results of surgery on HIV carriers with urinary system disease].

Objective: To approach characteristics of performing operation on HIV carriers with urinary system diseases.

Methods: To summarize author's experiences of surgery on 41 HIV carriers suffering urinary system diseases abroad from April 1996 to May 2004.

Results: The 41 HIV carriers received HAART and were performed with corresponding operations, followed up from 4 to 30 months post-operatively.