AIM: To study the tilt of the intraocular lens (IOL) after Nd:YAG capsulotomy (YAG) and variation of the axial length (AL) in patients with posterior capsular opacification (PCO).METHODS: The study involved 18 eyes of 14 patients with PCO after uncomplicated phacoemulsification surgery and IOL implantation.All patients had taken examinations,including testing best corrected visual acuity (BCVA) by using standard logarithmic visual acuity chart,images of ocular anterior segment and AL by OCT.After the examinations,YAG was operated upon all patients.Each eye received one drop of Diclofenac Sodium Eye Drops immediately after YAG,and patients had taken examinations listed above again.One week later,BCVA and OCT were tested as well.Data (BCVA,tilt of IOLs,and AL) were recorded and analyzed statistically by SPSS.RESULTS: Mean patient age was 73.93±6.94y,including 5 males and 9 females,8 left eyes and 10 right eyes,altogether 14 patients with 18 eyes.In this study,tilt of IOLs was defined as the angle of anterior surface of IOL and pupil plane (briefly called Tilt,unit:°).Before YAG,mean Tilt was 2.896±2.286°,mean AL was 23.56±0.55mm.1h after YAG,mean Tilt was 4.702±2.991°,mean AL was 23.40±0.59mm,and BCVA enhanced 3.72±1.74 lines.1wk after YAG,9 patients with 12 eyes were involved in the study.The mean Tilt of these 12 eyes was 3.175±1.791° 1h after YAG and 3.434±1.835° 1wk after YAG.There were significant differences between Tilt before YAG and Tilt 1h after YAG.There were no significant differences between AL before YAG and AL 1h after YAG.There were no significant differences between Tilt 1h after YAG and Tilt 1wk after YAG.The lines of enhancement of BCVA 1h after YAG was correlated to differences between Tilt before YAG and Tilt 1h after YAG,of which the correlation coefficient was-0.523.CONCLUSION: IOLs of patients with PCO tilted after YAG,while AL rarely changed.After YAG,the less IOLs tilted,the more BCVA enhanced.

Epithelial-mesenchymal transition (EMT) of cancer can enhance the abilities of invasion and metastasis of cancer cells,which is one of the reasons for treatment failure.Peroxisome proliferator-activated receptor gamma (PPARγ) is an important regulatory factor in EMT of cancer cells.Recent researches show that activation of PPARγplays a role in the occurrence and development of EMT by regulating the E-cadherin,Smad complex and body microenvironment.Therefore,in-depth research for the relationship among PPARγ,EMT and cancer is expected to provide a new direction for tumor treatment.

At present, there is no specific antidote for local anesthetic toxicity, which seriously hindered therapeutic efficts of clinical treatment. It is increasingly urgent for finding find the effective antidote to local anesthetic. This article at-tempts to interpret the molecular pharmacological mechanism from fat pool, energy metabolism, NO, ion channel and solubili-zation for the role of fatty acids in reversal of myocardial toxicity of local anesthetics. And the different characteristics of the structure and function of nano liposome and fat emulsion were compared.

Hypoxia-inducible factor-1 (HIF-1) is one of the most important hypoxia signal transmission factor,and it has been observed in many human tumors.HIF-1 could play a role of promoting tumor by regulating the expression level of transforming growth factor-β in vivo and in vitro,and then affecting the development and prognosis of tumor.

Small cell lung cancer with brain metastasis is the most common type in brain metastasis tumors with the poor prognosis. Researches show that prophylactic cranial irradiation is not only effective in the prevention and treatment of limited disease brain metastases of small cell lung cancer,but also effective for extensive disease. Moreover,certain medications such as mannitol,nimustine etc also play an important sup-porting role,but there are many other uncertain parts in terms of prevention and treatment remaining controver-sial and needing further research.

At present, about 50 million people worldwide suffer from sarcopenia, and the number is expected to reach 500 million by 2050.Sarcopenia in the elderly will be one of the major global health problems in the future.In this article, current research status and progress of the pathogenesis, diagnosis, its correlation with other diseases and treatment of sarcopenia were analyzed.

Erythropoietin(EPO) has an anti-apoptotic effect,and promotes the proliferation and differentiation of erythroid progenitor cells. Several studies have indicated that EPO can protect photoreceptor cells from the lightinduced retinal degeneration ;protect retinal neurons from ischemia-reperfusion injury and retinal ganglion cells after acute and chronic ocular hypertension; promote ganglion cell survival and axonal regeneration after optic nerve transaction; attenuate inflammation in multiple sclerosis optic neuritis; reduce the permeability of the retinal barrier and protect retinal neurons in diabetic retinopathy; enhance the stability of hypoxic retinal vessels in retinopathy of prematurity. Herein,we review the distribution of EPO and its receptor in retina,their expression in animal model of retinal diseases,and their effects and mechanisms in protection of retinal neurons and optic nerve.

The authors discussed the retention and revision of the Regulations on the Handling of Medical Malpractice following the enforcement of the Tort Liability Law.These discussions also covered the amendment of the concept of medical malpractice,and the reforms to make on the medical malpractice appraisal system built upon the Regulations following the enforcement.In the meantime of applying the Law to judge cases of medical malpractice,the Regulations as an administrative regulations issued by the State Council,should be revised before playing its role in preventing medical malpractice,medical dispute handling,and penalising medical institutions and medical workers of malpractice.

Child ; Gene Rearrangement, T-Lymphocyte ; Humans ; Neoplasm, Residual ; diagnosis ; Polymerase Chain Reaction ; methods ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; diagnosis ; Receptors, Antigen, T-Cell ; genetics

Musashi1 (Msi1) is an evolutionary conservative RNA-binding protein (RBP),and it is a stem marker in a variety of organizations,including intestinal,neural system.Msi1 maintains the balance between self-renewal and differentiation.Recently,many researchers report that Msi1 is overexpressed in many types of tumors,especially in colorectal neoplasms,participating in the regulation of cell cycle,proliferation,apoptosis and so on.Msi1 becomes a key regulator of many cancers,which is expected to turn into a new target for cancer therapy.