Objective To study the impact of gaseous formaldehyde exposure on the metabolism of nitric oxide (NO) in the lung tissue of mice. Methods The adult male Kunming mice were randomly divided into 4 groups, treated with gaseous formaldehyde (0,0.5,1,3 mg/m3) for consecutive 72 h in the simulated exposure chamber, the nitric oxide synthase (NOS) activities and the NO positive rate in mice's lung were measured with the reagent kits. Results The lower formaldehyde exposure (≤0.5 mg/m3 ) could decrease NOS activity (compared with the control, P

The nutritional status in early life have been gradually recognized that it can change the status of development and metabolism of adults.Epidemiological evidence and animal model study have found that low birth weight is the risk factors of adult metabolic syndrome and cardiovascular disease.Insulin resistance is a common pathophysiological basis.Renin-angiotensin system and insulin signaling systems interact to promote the development of insulin resistance.

Age-related macular degeneration( AMD) is one of the major reasons of blindness among the elderly in the developed countries. As AMD patients are increasing year by year, AMD has become one of the important topics of ophthalmic research to prevent blindness. Its pathogenesis is not fully understood, but many studies have shown that vascular endothelial growth factor ( VEGF ) plays an important role in the pathogenesis. With the development and application of anti - VEGF drugs, there are a variety of drugs applied to the disease. This article introduces conbercept for the treatment of AMD.

Objective To investigate the right ventricular function of patients with chronic pulmonary hypertension using Doppler tissue imaging(DTI)and to evaluate the relationship between DTI parameters and pulmonary artery systolic pressure(PASP).Methods Thirty-five patients with chronic pulmonary hypertension and thirty-five healthy subjects underwent Doppler tissue echocardiographic evaluation of right ventricular function.The tricuspid lateral annular systolic velocity(Sm),early(Em)and late(Am)peak diastolic velocities,isovolumic contraction time(IVCT)and isovolumic relaxation time(IVRT)were acquired from apical 4-chamber view.Results When compared with control group,Sm,Ea and Em/Am values were found to be lower and Am,IVRT values higher in patients with chronic pulmonary hypertension.When all patients were analyzed,there was a significant positive correlation between PASP and IVRT(r=0.78,P

Objective To analyse the clinicopathological features of primary small intestine lymphoma(PSIL), and explore the relationship between clinical stage,histological findings,therapeutic modality and prognosis. Methods The clinical data of 34 cases of PSIL were collected,the pathohistological features and results of immunohistochemical examinations were obtained,and the follow-up findings were adopted for comprehensive analysis. Results Among these 34 cases of PSIL,abdominal pain or discomfort,gastrointestinal bleeding and abdominal mass were the predominant symptoms.PSIL mainly involved ileum,especially the bottom of ileum and ileocecal area.Among the 26 patients with follow-up for more than one year,the 1-year survival rate was significantly higher in patients without tumor perforation than those with tumor perforation(76.2% vs 20.0%)(P

Adolescent ; Adult ; Aged ; Case-Control Studies ; Central Nervous System Neoplasms ; cerebrospinal fluid ; diagnosis ; Child ; Female ; Humans ; Hyaluronan Receptors ; cerebrospinal fluid ; Leukemia ; cerebrospinal fluid ; Male ; Middle Aged ; Young Adult

Antineoplastic Agents ; administration & dosage ; adverse effects ; therapeutic use ; Asparaginase ; administration & dosage ; adverse effects ; therapeutic use ; Child ; Drug Administration Routes ; Drug Administration Schedule ; Forecasting ; Humans ; Leukemia ; drug therapy ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; drug therapy

Complement Factor H ; genetics ; Hemolytic-Uremic Syndrome ; genetics ; Humans

Cystic Adenomatoid Malformation of Lung, Congenital ; diagnostic imaging ; pathology ; surgery ; Female ; Follow-Up Studies ; Humans ; Infant, Newborn ; Lung ; diagnostic imaging ; pathology ; Male ; Pneumonectomy ; Tomography, X-Ray Computed

Objective To study the clinical pathological features of mesenteric and omental inflammatory myofibroblastic tumor (IMT) in children.Method Clinical features,laboratory result,pathological evidence for diagnosis and treatment of 5 cases with mesenteric and omental IMT were analyzed and evaluated.Results Intra-abdominal mass was most frequently found in childhood mesenteric and omental IMT.Gastrointestinal obstruction was showed in 2 cases.Anemia,leucocytosis,thrombocytosis,polyclonal-hyperglobulinemia appeared in 5 cases.The histological pattern showed:4 cases were myxoid pattern IMT,1 case was compact spindle cells pattern IMT.Immunohistochemistry showed:the spindle cells were expressed vimentin,smooth muscle action(SMA) and desmin.Partial spindle cells were anaplastic lymphoma kinase(ALK) and cytokeratin(CK) positive,while S-100 protein,CD34 were negative.Complete surgical excision was performed on 5 cases.Follow-up studies ranged from 5 months to 3 years,and no patient developed recurrence.Conclusions Childhood mesenteric and omental IMT is a rare interstitial tumor.The diagnosis should be based on pathological and immunohistochemistry examinations.Most cases are benign,and complete surgical excision can avoid local recurrence.