Climacteric ; Depression ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Middle Aged ; Phytotherapy ; Sleep Initiation and Maintenance Disorders ; Syndrome

Rofecoxib, a COX-2 specific inhibitor, is approved for treatment of osteoarthritis, acute pain and primary dysmenorrhea. On September 30, 2004, Merck announced the voluntary worldwide withdrawal of rofecoxib (Vioxx). This paper reviewed the pharmacological actions of the COX-2 specific inhibitors and the characterization, premarket study, clinical application and side-effects of rofecoxib and analyzed the withdrawal of rofecoxib.

Objective To evaluate the clinical safety and efficacy of Cheatham-Platinum(CP)covered stent in treatment of aortic coarctation.Methods The therapeutic efficacy was retrospectively analyzed in 15 patients with aortic coarctation who were treated by BIB balloon dilation and CP covered stent implantation.Results All patients were well recovered,the stent did not appear displaced,folded,aorta dissection and rupture.The pressure difference was 5-10 mm Hg(1 mm Hg=0.133 kPa)between proximal part and distal end after operation.Following up(20±12)months,the therapy efficacy of all the patients was stable and there was no fracture,removal,aortic stenosis or dysarteriotony.Heart ultrasounds demonstrated good close of the cases with patent ductus arteriosus.Conclusion CP covered stent is a safe and available clinical therapy,featured by minimum aorta injuries.

OBJECTIVETo modify biomacromolecules, such as chitosan and collagen, to synthesize a mineralized template that will induce self-growing remineralization of tooth enamel.

METHODSNatural polycation polysaccharide chitosan was modified through phosphorylation to synthesize the polyanion derivative ofphosphorylated chitosan. Parent hydrogels com- bined with chitosan and collagen I were built through peptide binding reaction using genipin as a crosslinker. The gels self- assembled on the tooth's inert surface, which was stimulated by ultraviolet radiation. The bionic saliva provided mineralized ion, and then the hydroxyapatite assembled and grew in situ on the tooth.

RESULTSThe functional group P04(3-) (3,446 cm(-1)) was grafted on chitosan as confirmed by the Fourier transform infrared spectroscopy. The porous polyelectrolyte complex hydrogel formed by the interaction between the polycation chitosan and the polyanion phosphorylated chitosan could induce hydroxyapatite crystal nucleation and growth on the hydrogel fiber surfaces. The neonatal crystal was hydroxyapatite as confirmed by X-ray diffraction and was tightly connected to the tooth. A continuous structure of column crystals with sizes ranging from 30 nm to 60 nm was observed. The structure was in parallel direction similar to the direction of the enamel rod, and its hardness was close to dentin.

CONCLUSIONThe parent hydrogels that were easily obtained and controlled could mimic the template of the enamel mineralization and induce a self-growing hydroxyapatite, which is an important step in the structural bionics of enamel.

Biocompatible Materials ; Chitosan ; Collagen ; Dental Enamel ; Durapatite ; Microscopy, Electron, Scanning ; Polymers ; Spectroscopy, Fourier Transform Infrared ; Tooth ; Tooth Remineralization ; Ultraviolet Rays ; X-Ray Diffraction

Quantitative analysis of multi-components by single marker (QAMS) can be used to achieve the simultaneous determination of multiple components through a reference substance, which is considered suitable for the characteristics of Chinese materia medica (CMM). QAMS has been used for quality control of Chinese herbal medicines, Chinese herbal pieces, and CMM preparations. This paper briefly introduces the principle of QAMS method, and systematically summarizes the application of QAMS method in quality control of Chinese crude drugs, Chinese herbal pieces, and CMM preparation. Finally, it is proposed that active ingredients as an indicator component in QAMS is consistent with the multi-components characteristics of CMM, and it can be effectively used for quality control of CMM and has a good application prospect.

The diagnosis related groups( DRGs) method is applied in hospital management at both hospital and clinical department level. This technology enabled us to evaluate hospital medical services in general, objectively evaluate discipline development, and formulate individualized discipline guidelines, supporting scientific distribution of hospital resources. At the department level, the technology supported clinical departments in their discipline construction and quality management. The application of DRGs can improve fine management of hospitals.

The ptrpose of this study was to investigate the effects of long-term estradiol and progesterone combined therapy on bone mineral density (BMD) in patients with Turner syndrome.Eight patients with Turner syndrome received estradiol and progesterone combined therapy for six years were observed and BMD was measured for each of them before hormone replacement therapy (HRT) and at an interval of one to two years after HRT and compared with that in normal age-sex matched women.BMD was significantly lower in patients with Turner syndrome than that in normal controls before HRT.All the patients with Turner syndrome had breast enlargement and irregular vaginal bleeding after HRT.BMD increased slightly in the patients with Turner syndrome after six-year HRT ,but still much lower than that in normal controls.Their BMD of the 2nd to 4th lumbar vertebra increased to (0.84±0.22) g/cm2 after HRT from (0.75±0.12)g/cm2 before it,with Z-score increased to -2.2±0.6 from -3.2±0.9,respectively; and overall BMD of the hip increased to (0.81±0.08) g/cm2 after HRT from (0.68±0.07) g/cm2 before it,with Z-score increased to-1.2 ± 0.3 from-2.2 ± 0.5,respectively.Long-term HRT can improve their BMD for patients with Turner syndrome but can not restore it to normal.

Objective: To investigate the effects of Tea Polyphenol(TP) on inhibition of tumor growth, anti-oxidation and immune regulation in tumor-bearing mice. Methods: TP was administered by gastriclavage to C57BL/6J mice implanted with Lewis lung cancer. Results: Inhibitory rates of TP at doses of 125 mg/kg and 250 mg/kg were 27.2% and 18.8% respectively, with significance over controls at dose of 125 mg/kg( P

?Advances in genome-wide analysis have revealed that up to 90%of the human genome is transcribed.However, only approximately 1% of RNA transcripts encode proteins, and the remaining transcripts are noncoding RNAs.Noncoding RNAs can be roughly divided into small noncoding RNAs (<200nt ) and long noncoding RNAs ( LncRNAs, >200nt ). Small noncoding RNAs include microRNAs, transfer RNAs and small nucleolar RNAs, whereas the long noncoding RNAs comprise ribosomal RNA, natural antisense transcripts, etc. Although the biosynthesis and biological activities of microRNAs are well studied through bioinformatics and active biological molecules analysis, the understanding of LncRNAs on these aspects is still limited.LncRNAs play multiple roles in regulating gene transcription and translation, and epigenetics.Aberrant LncRNAs expression can occur in various pathological processes and significantly related to the pathogenesis or poor prognosis of ophthalmological diseases. In this review, we will focus on the characteristics and regulatory functions of LncRNAs that are commonly associated with ophthalmological diseases.

Objective To explore the A2AR activation after traumatic brain injury mechanisms and the role of excessive tau protein phosphorylation.Methods With no specific mice experiment research of specific pathogens, position in the left parietal cortex in mice, by the method of controllable cortical against brain trauma model model, 15 min after injury in mice abdominal injection of A2AR specific inhibitors ZM241385 or use A2AR knockout mice, testing the brain neuron loss and tau protein phosphorylation level;Use specific agonists CGS21680 activate the original generation of nerve cells in the hippocampus and the A2AR human neuroblastoma cells, using immunocytochemistry and immunofluorescence test tua protein phosphorylation level of change, to observe axon transport function of mitochondria.Results Immunohistochemical results accumulation of optical density analysis showed that inhibition of A2AR activation can significantly reduce after cerebral trauma Ser404 tua protein loci phosphorylation levels, reduce excessive tua protein phosphorylation with nerve pathological change;A2AR activation after tua phosphorylation of proteins at a Ser404 site level increased significantly, nerve axons per unit length processes in the mitochondria number decreased significantly, resulting in axoplasmic transport dysfunction;To activate the original generation of nerve cells in the hippocampus and after the A2AR human neuroblastoma cells, tua protein phosphorylation Ser404 locus levels increased significantly.Conclusion A2AR activation after cerebral trauma has obvious influence on tua protein phosphorylation levels, may be a function by influencing the axoplasmic transport, eventually forming cognitive dysfunction.