Primary osteoporosis is a commonly and freguently encountered disease of the elderly People. There is no specific treatment for it at present time. The most important thing is prevention. Although there are so many prvention methods , nutritional prevention is one of important aspects of osteoporosis. In each stage of life,people should pay attention to intaking the nutrients which is beneficial to preventing osteoprosis.

Objective To study the expression of Ki-67 in T1 primary breast cancer tissue and its relationship with Her-2 and ER,evaluate the prognosis of early breast cancer.Method s Sixty cases of women T1 primary breast cancer tissues of 60 female cases from January 2008 to June 2011 were selected.The expressions of Ki-67 were detected by immunohistochemieal method and the relationships between Ki-67 and clinical-pathological fcatures,Her-2 and ER were analysed.Results The expression of Ki-67 in T1 primary breast cancer was 55% among the 60 patients.The expression of Ki-67 was not related with the clinical-pathological type of breast cancer and menopause (P＞0.05).The expression of Ki-67 in group with lymph node metastasis was higer than in group without lymph node metastasis(P =0.047 ,P ＜0.05).The expression of Ki-67 in Her-2positive group was higher than Her-2 negative group (P= 0.021,P＜0.05),and the expression of Ki-67 in ER positive group was lower than that of ER negative group (P = 0.037,P ＜ 0.05).Conclusions The expression of Ki-67 in T1 primary breast cancer indicates the possibility of lymph node metastasis,and its positive correlation with Her-2 positive expression,ER negative expression indicates poor prognosis.

Morality and Ethics are rooted in the development of human society.Scientists should be strict with their professional morality and positively face ethics-related arguments.nowadays,based on the rapid development of Science &Technology,the relationship between science and society and the recognition of "self" have been changed fundamentally,which have caused new challenges to scientists in the fields of morality and ethics.

Adult ; Benzene ; toxicity ; Female ; Humans ; Male ; Occupational Exposure ; T-Lymphocytes, Regulatory ; drug effects ; Young Adult

Adolescent ; Adult ; Amanita ; Chemical and Drug Induced Liver Injury ; etiology ; therapy ; Female ; Humans ; Male ; Middle Aged ; Mushroom Poisoning ; therapy ; Retrospective Studies ; Young Adult

To a certain extent, itemized government subsidies to public hospitals, primarily used for hospital infra-structure and large equipment investments, can alleviate the financial pressure of development expenditures and thus re-duce the medical expenditure burden on patients. To test the hypothesis, the panel data method has been adopted based on the data of 23 tertiary hospitals. Empirical results find that:(1) increases in itemized subsidies will reduce the burden of medical expenses on patients;(2) conversely, the impact of itemized subsidies on outpatient medical expenses is more sig-nificant. By sharing a portion of public hospital expenses and impacting hospital service providing behavior, itemized sub-sidies help to reduce the burden of medical expenses on patients.

Objective To prepare optimization of notoginsenoside R1 chitosan nanoparticles,to provide a theoretical basis for clinical application of the drug.Methods Notoginsenoside R1 chitosan nanoparticles were prepared,HPLC method was used to detect the content of notoginsenoside R1 chitosan nanoparticles,preparation technology of nanoparticles were optimized by orthogonal experiment,and the optimized preparation technology of nanoparticles was verified.Results HPLC standard curve equation was A =911.49C -1803.4(r =0.999 9),linear range was from 25 to 900 g/mL.The intra day precision were 1.520%,0.884% and 0.969%(n =6),and the inter day precision were 1.591%,1.447% and 1.269%(n =6).The recovery rates of low,medium and high concentra-tions were (98.11 ±1.16)%,(101.27 ±0.59)% and (100.97 ±0.82)%.4 factors of orthogonal experiment:the concentration of chitosan,the mass ratio of drug and carrier,temperature and rotational speed,and 3 levels of each factor were selected.The average particle size,encapsulation efficiency and drug loading were selected as control indexes.The test results were determined by the method of comprehensive weighted scoring.The orthogonal design was designed according to L9(34)orthogonal design.The optimization process was 2% of chitosan concentration,20% of the weight ratio of drug and carrier,35 ℃ of temperature,600 r/min of rotational speed.According to the optimized process,the average particle size was (123.40 ±7.68)nm,the encapsulation efficiency was (58.41 ±1.59)%,and the drug loading amount was (10.46 ±0.53)%.Conclusion The optimized preparation process of notoginsenoside R1 chitosan nanoparticles is simple and easy to operate,the entrapment efficiency and drug loading amount were high. As a new dosage form,it has a good clinical application prospect.

BACKGROUND:Despite regular mesh hydroxyapatite has certain biocompatibility and bone conductivity, it cannot be absorbed by human body after transplantation, and wil affect the growth and eruption of maxila and fangs when using for filing the injured alveolar cleft. OBJECTIVE: To compare the effect of conventional and new mesh hydroxyapatite composites in repair of alveolar cleft defects. METHODS: Totaly 46 patients with cleft lip and palate were randomly and evenly divided into test and control groups, and al were arranged according to cleft lip and palate sequence treatment. After nasal soft tissue defect repair, new mesh hydroxyapatite composite bone material (hydroxyapatite and bone morphogenetic protein compound). Conventional mesh hydroxyapatite material was adopted in the test and control groups, respectively. Within 6 months after the repair, the vertical distance from the newly formed bone tissue plane to the top of alveolar ridge was observed. The clinical repair effect was comprehensively evaluated from the aspects of complications, alveolar cleft shape and size, calus formation and material absorption. RESULTS AND CONCLUSION: At 2, 4, 8, 12 and 24 weeks, the vertical distance from the newly formed bone tissue plane to the top of alveolar ridge in the test group was higher than that in the control group (P < 0.05). The clinical repairing significant efficiency and total effective rate were al higher than those in the control group (P< 0.05). These results show that new mesh hydroxyapatite composite bone materials in the repair of alveolar cleft defects have good bone osteoinductivity and biocompatibility, rare complications and rapid calus formation.

It is important to analyze the epidermal growth factor receptor ( EGFR) mutation before makingstrategyonnon-small cell lung cancer ( NSCLC) patients scheduled to EGFR tyrosine kinase inhibitor ( TKI) therapy .Digital PCR is a new generation of molecular diagnostic technique that provides ultra-highersensitive, specific and absolute nucleic acid quantification based on its unique principle.The application of digital PCR indetecting circulate tumor DNA can be the truly tumorliquid biopsy, helps to acquire the accurate EGFR mutation status from peripheral blood and screen out the most appropriate patients for TKI therapy.This breakthrough technology will also contribute to tumor surveillance and drug resistance monitoring.

Rheumatoid arthritis ( RA) was a common autoimmune disease characterized with main clinical manifestations of chronic inflammation in joints.Anti-carbamylated proteins(anti-CarP)antibody, as a promising bio-marker, played a crucial role in the diagnosis of RA patients and the screening of pre-RA patients .In this article , recent progress on the study of anti-CarP antibody and RA related diseases has been reviewed , which was expected to provide new references for the diagnosis and treatment of related clinical diseases .