Background Wearing of soft contact lens,as one of the important methods to correct ametropia,has been widely applied at present.The clinically deleterious effects of soft contact lens have been reported,but researches about influence of apoptosis of corneal epithelial cells are scant.Objective This study was to detect and compare the ratio of apoptosis of corneal epithelial cells between the patients with contact lens wearing and without contact lens wearing,and explore the influence of soft contact lens wearing for long term on growth of corneal epithelial cells after injury.Methods A retrospective nest case-controlled study was designed.Forty eyes of 20 myopic patients with wearing of soft contact lens for ≥5 years and 40 eyes of 20 myopic patients without wearing of soft contact lens were included in Affiliated Hospital of Guiyang Medical College.All the patients received the off-flap epipolis laser in situ keratomileusis (Epi-LASIK) from 2010 October to 2011 June.The corneal flaps were collected during the surgery.The apoptosis of corneal epithelial cells was detected by flow cytometry(FCM),and the difference of apoptotic proportion between the two groups was compared using independent sample t test.Results The FCM scatter plot showed that compared to the without contact lens wearing group,the early stage of apoptotic cells with high staining annexin V and low staining proaium iodide (PI) were much more,and survival cells with low staining annexin V and PI were less,and necrotic and late stage of apoptotic cells with high staining of annexin V/PI were more in the with contact lens wearing group.The early stage of apoptosis proportion of corneal epithelial cells was (11.23 ± 5.31)％ in the with contact lens wearing group,and that in the without contact lens wearing group was (7.31± 5.43)％,showing a significant difference between them (t=2.754,P=0.008).Conclusions A long term wearing of contact lens induce more apoptosis of corneal epithelial cells,which can result in a disorder of structure and function of ocular surface during the wound healing stage.

Traditional Chinese medicine (TCM) has a good reputation for preventing or healing diseases in clinic due to its higher efficacy, minor toxicity and abundant resources. Screening bioactive components in TCMs is not only crucial for clarifying their action mechanisms, but also the basis of their safety and quality control. TCM is characterized by multiple components, multiple targets and multiple mechanisms, however the complex composition of TCM makes it difficult to study the therapeutic material basis which has become the bottleneck in the process of its modernization and internationalization. Recently, with the rapid development of modern technologies and the unceasing progress of various disciplines, multidisciplinary approach, such as analytical chemistry, chemistry of TCM, pharmacology, cell biology, systems biology and bioinformatics has been successfully applied to the study of TCM. Multidisciplinary approach realizes the communication and interaction of multi-discipline, and accelerates the research and development of TCM. This review summarizes the application of multidisciplinary approach which may have certain potential of bringing new thoughts to TCM research and provide references for screening and identification of therapeutic material basis of TCMs.
Chemistry, Pharmaceutical ; Computational Biology ; Drugs, Chinese Herbal ; chemistry ; therapeutic use ; Humans ; Medicine, Chinese Traditional ; Phototherapy ; Systems Biology

Objective To evaluate the diagnosis and treatment of aortic dissection combined with chronic renal failure.Methods Ten cases were retrospectively analyzed who were diagnosed as aortic dissection combined with chronic renal failure between January 2012 and December 2014.The history of chronic renal failure was 1-6 years.According to Standford classification,one case was type A dissection and the other nine were type B.Results Seven type B dissection had endovascular stent implantation.Perioperative renal function monitor and hemodialysis was given.The other two patients with type B dissection had conservative treatment.One patient with type A dissection died in the day of diagnosis.Follow-up data showed seven patients with stent implantation were in good condition and two others with conservative treatment died due to dissection rupture three and eight months after diagnosis respectively.Conclusions The mortality of aortic dissection combined with chronic renal failure is high.For Standford B dissection,endovascular stent implantation is a reliable treatment method.

Objective: To investigate the expression of miR-451 in breast cancer cells and its correlation with drug resistance to ADM (adriamycin). Methods: Stem-loop real-time PCR was used to detect the expression of miR-451 (microRNA-451) in breast cancer MCF-7 cells and their ADM-resistant cells (MCF-7/ADM). The mimics of miR-451 and the negative control RNA (NC) were transfected into MCF-7/ADM cells by LipofectAMINE 2000. The expression levels of MDR1 (multi-drug resistance gene 1) mRNA and P-gp (P-glycoprotein) protein were examined using real-time fluorescence quantitative PCR and Western blotting, respectively. MTT was used to analyze the proliferation of MCF-7/ADM cells transfected with miR-451 mimics and treated with ADM at different concentrations. Results: The expression level of miR-451 was lower in MCF-7/ADM cells than in MCF-7 cells (P < 0.05). The expressions of MDR1 mRNA and P-gp protein were decreased in MCF-7/ADM cells after transfection with miR-451 mimics as compared with those in the NC group (P < 0.05). The sensitivity of MCF-7/ADM cells transfected with miR-451 mimics and treated with ADM was enhanced and the IC50 (half inhibition concentration) value of ADM in miR-451 mimics transfection group was less than that of the NC group (P < 0.05). Conclusion: The expression of miR-451 is down-regulated in breast cancer ADM-resistant cells, which may play a vital role in drug resistance by regulating the expression of MDR1/P-gp. Copyright © 2012 by TUMOR.

Background Epipolis laser in situ keratomihusis(Epi-LASIK) is an potential surgery for myopia because it synthesize advantages of LASEK and LASIK. But its clinical effectiveness and safeness is remarkable.Objective This study was to evaluate the clinical curative effects and safeness of Epi-LASIK for myopia in different diopter of population. Methods Retrospective study was designed for 208 eyes of 104 patients who underwent EpiLASIK for the correction of myopia. The patients were divided into two groups according to preoperative diopter:lower myopia group( ≤ -6.00 D, 111 eyes) and high myopia group ( ＞-6.00 D,97 eyes). The time of epithelial healing, postoperative syndrome, postoperative visual acuity, refraction, intraocular pressure (IOP) , the safe index, the efficacy index and haze were evaluated at 1,3,6,12 months postoperatively. The written informed consent was obtained from each individual before surgery. Results After operation, 20 eyes ( 18.02% ) of lower myopia group and 29 eyes (29.90%) of high myopia group had obvious pain, presenting statistically significant difference between two groups (X2 = 4. 060, P＜0.05 ). The mean time of epithelial healing was (5.49±0. 83 )days in lower myopia group and (5.85± 0.68 )days in high myopia group with a delayed epithelial healing time in high myopia group( u= 3. 377 ,P＜0.05 ).One year after the treatment,the uncorrected visual acuity( UCVA ) ≥ 1. 0 was 90. 99% ( 101 eyes) in lower myopia group and 75.26% ( 73 eyes) in high myopia group, and 9.91% ( 11 eyes) and 15.46% ( 16 eyes) of the eyes improved byl line or more in best spectacle corrected visual acuity(BCVA) ;whereas 3.60% (4 eyes)and 6. 18% (6 eyes)lost a line or more. 91.89% ( 102 eyes) and 85.57% (83 eyes) in both groups gained within 1.00 D of the attempted correction. The safety index and efficacy index were 1.04 and 0. 98 in lower myopia group,and 1. 01 and 0. 96 in high myopia group without statistically significant difference( P＞0. 05 ). haze occurred in 6 eyes in lower myopia group and 9 eyes in high myopia group and the difference in haze grading was not statistically significant between two groups ( P＞0. 05 ). The high intraocular pressure appeared in 10 eyes and 9 eyes in low myopia group and high myopia group respectively during the fellow up duration and back to normal after topical use of timolol. Conclusion Epi-LASIK is an effective and safe method for correction of different diopters of myopia because of its mild symptom and lower incidence of haze.

Child ; Humans ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; therapy

Objective To test the reliability and validity of the self-assessed questionnaire of the elderly health care needs.Methods Based on the Zuluaga-Raysmith model, the initial questionnaire was formulated by literature reviewing and interviews.Through Delphi experts consultation, a questionnaire containing 12 factors, 61 items was constructed.A total of 750 elderly residents were investigated to test the reliability and validity of the questionnaire.Results The effective rate of questionnaires was 88.67％ (665/750).The total Cronbach α was 0.871.The test-retest reliability of all the items were all greater than 0.75.The item-level content validity index were all greater than 0.80.The scale-level content validity index was 0.95.14 factors were extracted by exploratory factor analysis, explaining 66.653％ of the total variance.Conclusions The elderly health care needs self-assessed questionnaire is comprehensive with good stability, which can be used in a multi-center, large sample research.The research may help to get a deep understanding of health care needs of the elderly as well as influencing factors.

Adult ; Antiviral Agents ; therapeutic use ; Colonic Neoplasms ; diagnosis ; etiology ; therapy ; Cyclosporine ; adverse effects ; Esophageal Neoplasms ; diagnosis ; etiology ; therapy ; Female ; Ganciclovir ; therapeutic use ; Humans ; Immunosuppression ; adverse effects ; Immunosuppressive Agents ; adverse effects ; Liver Neoplasms ; diagnosis ; etiology ; therapy ; Liver Transplantation ; adverse effects ; Lymphoproliferative Disorders ; diagnosis ; etiology ; therapy ; Middle Aged ; Pharyngeal Neoplasms ; diagnosis ; etiology ; therapy ; Survival Analysis ; Tacrolimus ; adverse effects ; Time Factors

Objective To report specific clinico-radiological syndromes in neuropsychiatric systemic lupus erythematosus (NPSLE).Methods Ten patients with NPSLE in Peking Union Medical College Hospital from 2005 to 2011 were studied retrospectively with magnetic resonance imaging, computer tomography or positron emission tomography. Results Posterior reversible encephalopathy syndrome was diagnosed in 2 patients with radiological features,headache and tonic-clonic seizure;3 patients with bilateral diffuse leukoencephalopathy,cognitive disorder and acute confusional state; 1 Fahr' s disease patient,with cognitive disorder and psychiatric symptom,movement disorder; 2 Parkinsonism patients with tremor and cogwheel rigidity,and 2 chorea patients. Conclusions The emergence of diffuse brain calcinosis,leukoencephalopathy and edema may happen in lupus encephalopathy particularly.Autoantibody reaction and vascular disease may play an important role in movement disorder including Parkinsonism and chorea.

Objective To analyze the incidence, clinical feature and late complications, and treatment for diabetes ketoacidosis (DKA) in children with type 1 diabetes mellitus.Methods Ninty children with type 1 diabetes mellitus within 10 years were retrospectively reviewed.The onset situation,clinical feature and long-term complication,and treatment of DKA were analized.Results High morbidity was found in 10 to 16 years old children.DKA was often caused by infection; late complications of diabetes mellitus was resulted from interrupted injection of insulin.Conclusions Emergency treatment for DKA may involve the injection of small dose insulin,correction of the disorder of water and electrolysis and regulation of acid-base.The education of patients and parents about diabetes mellitus and long-term injection of insulin are of importance in preventing the complications.