Traditionally,arsenic is thought to be a strong toxicant,especially arsenic trioxide (As2O3 ).As2O3 leads to the damage of ocular surface,such as cornea,conjunctiva etc.,and the evidence of its damage to retinal function also has been found.However,arsenic is a double-edged sword,because it possesses well- remedial effect on some eye diseases,including proliferative diabetic retinopathy,lens posterior capsular opaciffcation,keratopathy,meIanoma and bleb scarring.At present,there is still few research literature was seen about the active mechanism of arsenic agents on eye damage or therapeutic effect.Some relative studies are still in an experimental stage.This offers us the new research direction in clinical treatment of eye diseases.It is believed that arsenic will play an incalculable role on experiment and clinical treatment of eye diseases as further development and research of technology.The relationship between arsenic and eye disease is summed by consulting internal and external literature.

Endoscopy ; methods ; Epidermal Cyst ; surgery ; Female ; Humans ; Middle Aged ; Skull Base ; pathology

Objective To investigate the effects of Zafirlukast on emotions and Th1/Th2 cytokines in asthmatic children.Methods One hundred and eight asthmatic children were randomly allocated to 3 groups.The children in group A inhaled Pulmicort aerosol 200 ?g twice every day.On the basis of inhaled Pulmicort aerosol,the children in group B took orally Zafirlukast orally 10 mg once every day.The children in group C only took orally Zafirlukast 10 mg once every day.The course of treatment of all children were 4 weeks.Anxiety,depression status and the levels of IFN-? and IL-4 in blood serum were respectively detected before and after treatment.Results Scores of anxiety and depression after treatment in 3 groups were significantly lower than those before treatment(Pa0.05).Conclusions Zafirlukast or Glucocorticoid inhalation has the same effect on improving emotional status and accommodating disequilibrium of Th1/Th2 for asthmatic children,but effect of Zafirlukast combined with Glucocorticoid inhalation are better.

Air ; analysis ; Chromatography, Gas ; methods ; Methylene Chloride ; analysis ; Workplace

Adult ; Child ; Diet ; Female ; Fetus ; immunology ; Humans ; Hypersensitivity ; embryology ; immunology ; Maternal Behavior ; Pregnancy ; immunology ; Risk Factors

With the wide use of nanomaterials in biomedicine,materials,chemicals and other fields,their environmental exposure and cellular toxicity have come to the attention of researchers as a new research area in the field of nanotoxicology and nanomedicine. Researches on the toxic effects of nanomaterials have not only provided of a theoretical basis for safety evaluation of nanomaterials ,but also promoted the have applications of nanotechnology. Numerous studies have revealed cell death is closely associated with the toxicity of nanomaterials. In this paper,we elaborated on the roles of three key cell death modes in nanotoxicity,including autophagy,apoptosis,and necrosis. Furthermore,the pos?sible mechanisms involved in these three modes were explored. All this will provide reference for safety evaluation of nanomaterials.

Objective To examine the association between glycemia in COPD and pulmonary function. Methods 124 cases were divided as COPD and COPD with type 2 diabetes mellitus. COPD patients with diabetes were stratified according to the course of diabetes. The main pulmonary function measures included TLC,FVC, FEV_1, FEV_1/FVC%, FEF25%～75% and DLCO, DLCO/VA . Results DLCO and DLCO/VA in diabetic COPD were significantly lower than those of COPD ( P

Strain QJ16,one of some methanotrophic bacteria isolated from soil samples utilizing the separate device designed by our laboratory;was studied in detail and identified as one of the Genus methylomonas through 16S rDNA sequencing and comparison. The culturing and reaction conditions for methane utilization of this strain were investigated. The results indicated that the optimal conditions for the growth of strain QJ16 were methane gas as carbon source and the coexistence of NH4Cl and KNO3 as nitrogen source,the cultivation temperature of 30℃ and medium initial pH 6～7,and the optimal Cu2+ concentration of 15 ?mol/L.

Objective To improve the diagnostic level of uncommon hepatic malignancy in 5 cases with different histopathological nature by analyzing their CT features. Methods CT scan was performed in 5 cases with pathologically proved uncommon malignancy of the liver including hepatic sarcoma ( n =3) and primary carcinoid tumor ( n =2). Results These uncommon malignancies of the liver had a variety of presentations. Undifferentiated embryonal sarcoma presented as a single huge cyst mixing with solid mass. Hepatic angiosarcoma demonstrated as multiple well defined hypoattenuation lesions without cirrhosis. Necrosis, cystic degeneration, and hemorrhage may be accompanied. Malignant fibrous histiocytoma displayed as a single large hypoattenuation lesion within hyperdense septations, and most of the tumor was in the right lobe. Immunohistochemistry had the diagnostic value. The CT features of carcinoid tumor were single or multiple, unilocular or multilocular mixed dense masses. The solid portion of the masses enhanced obviously and carcinoid syndrome may highly suggest the diagnosis. Conclusion The forementioned 5 cases of hepatic malignancy are seldomly seen clinically. Each of them with different pathologic nature has different CT findings, and sometimes with some similar signs. Typical CT findings, coupled with clinical information may lead to a correct diagnosis.

Adult ; Chronic Disease ; Female ; Humans ; Kidney Transplantation ; adverse effects ; Male ; Middle Aged ; Nasal Polyps ; etiology ; Postoperative Complications ; Sinusitis ; etiology