Glaucoma is the first leading cause of irreversible blindness and the second leading cause of blindness worldwide. Numerous studies have shown that elevated intraocular pressure ( IOP ) is one of the major risk factors for the development and progression of glaucomatous optic nerve damage. However, there have been 50% of primary open-angle glaucoma ( POAG ) patients with typical glaucomatous optic neuropathy in whom the IOP measurements have always been in the normal range, and some patients develop typical glaucomatous optic neuropathy with the well controlled IOP. These phenomena cannot be explained by the theory of high intraocular pressure. The pathogenesis of glaucomatous optic nerve damage in these patients with normal IOP needs to be further discussed. Numerous studies at home and abroad have shown that: 1. the surrounding anatomy of the optic nerve including the IOP, the anatomy and biomechanics of the lamina cribrosa and retrobulbar orbital cerebrospinal fluid pressure may be of importance for the pathogenesis of the POAG;2. patients with normal tension glaucoma had significantly lower cerebrospinal fluid pressure and a higher trans - lamina cribrosa pressure difference compared with normal subjects; 3. patients with ocular hypertension had significantly higher cerebrospinal fluid pressure, however, there is no difference in trans -lamina cribrosa pressure compared with normal subjects. Based on the above research, now we make a review about the research advance of the relation between intracranial pressure and glaucoma optic nerve damage and the available measurements about noninvasive intracranial pressure in clinical in this paper.

Bacterial Infections ; Humans ; Respiratory Hypersensitivity ; microbiology

Objective To study the change and the significance of T-lymphocyte immune function in peripheral blood in population living in arsenic-contaminated area. Methods Fifty-three cases of patients with arsenism symptoms were selected into experimental group, inhabitants who had no chronic arsenism symptoms into control group in the endemic area of Shuocheng District, Shuozhou City, Shanxi Province in 2006. Vein blood samples were taken and analyzed with SAP assay to measure the percentage of CD3+ ,CD4+ and CD8+ T-cells. Results It was found that the percentage of CD3+, CD4+, and CD4+/CD8+ [(41.89 ± 11.58)%, (25.60 ± 9.05)% and 1.02 ± 0.41] in the experimental group was lower than that in the control group [(68.38 ± 7.23)%, (39.17± 4.28)% ,1.69 ± 0.56, t = 13.61,18.72,14.79, all P < 0.05], while there was no statistical differences of CD8+ [(25.30 ± 6.85)%] compared to the control group[(23.54 ± 8.35)%,t = 3.07,P > 0.05]. The gender-related effect of arsenic on CD4+ and CD8+ was found by multiple linear step regression analysis(t = - 3.05, - 4.30, all P < 0.05). In case group, there were no statistical differences in CD3+, CD4+, CD8+ and CD4+/CD8+[(40.65±10.06)%, (24.48 ± 6.29)%, (24.52 ± 8.16)%,0.98 ± 0.25] between males and females [(43.07±12.96)%, (26.77±3.12)%, (26.50 ±9.32)%, 1.07 ±0.41, t = - 0.76,3.05,0.30,2.10, all P > 0.05]. Conclusions The immune function of T-lymphocytes of patients with chronic arsenism has been suppressed. It is of active significance to detect T-lymphocyte subpopulation in peripheral vein in patients with chronic arsenism aiming at estimating the function of cell immune and providing early diagnosis index.

Abstract?AlM:To investigate the choice of different treatments for malignant glaucoma.? METHODS: ln this retrospective case series, 21 malignant glaucoma patients ( 21 eyes ) admitted in Wuhan General Hospital of Guangzhou Military Command from May 2012 to May 2013 were analyzed. Sixteen eyes ( 76%) developed malignant glaucoma after filtration surgery, 3 eyes ( 14%) after EX - PRESS glaucoma filtration device, 2 eyes ( 10%) after glaucoma filtration Ahmed valve implantation. Main Outcome of corrected visual acuity, intraocular pressure ( lOP ) , anterior chamber depth and complications were detected.?RESULTS: lOP recovered by drug control in 13 eyes, anterior chamber depth. Four eyes were treated by vitreous water- bag aspiration combined with anterior chambers reconstructing. Two eyes were treated by cataract extraction and intraocular lens implantation. Two eyes were treated by posterior capsule excision combined with anterior vitrectomy. lOP before and after treatment was 29. 81±4. 98, 12. 71±3. 77mmHg, respectively (P=0. 00). Anterior chamber depth before and after treatment was 0.41± 0. 34, 2. 13 ± 0. 54mm, respectively (P = 0. 00). Corrected visual acuity before treatment was 0. 19 ± 0. 17, after treatment was 0. 20±0. 16 (P= 0. 36). Except for vitreous hemorrhage in 1 eye, there were no ocular or systemic adverse events observed in all patients.? CONCLUSlON: lt is good to diagnose malignant glaucoma in early period, and treated it step by step. For this can reduce lOP and restore anterior chamber.

The fine structure of enoxaparin sodium samples with different degree of 1,6-anhydro derivatives were analyzed with polyacrylamide gel electrophoresis, high performance liquid chromatography, ultraviolet spectroscopy, infrared spectroscopy and nuclear magnetic resonance spectroscopy. A further study of anticoagulation activity of enoxaparins was performed, including those on their inhibition activities of coagulation factor Xa (FXa) and thrombin (FIIa). The results showed that the anti-FXa and -FIIa activities of enoxaparins with different degree of 1,6-anhydro derivatives (20.0%-39.7%) with similar structure characteristics, had decreasing tendency when the degree of 1,6-anhydro derivatives increased. Especially, the anti-FXa activity was sensitive to the change of the degree of 1,6-anhydro derivatives.
Anticoagulants ; chemistry ; Enoxaparin ; chemistry ; Factor Xa Inhibitors ; chemistry ; Thrombin ; antagonists & inhibitors

OBJECTIVETo investigate the Epstein-Barr virus (EBV) infection, the expression of EBV latent membrane protein 1 ( LMPl) and oncogene bcl-2 in lung cancer patients.

METHODSEBERI in 108 cases of lung cancer were detected with in situ hybridization. EBV positive and negative lung cancer tissues were analysed for the expression of LMP1 and Bcl-2 by immnohistochemistry. The average area (AA) and integral optical density (IA) of each sample was measured with the digital medical image analyzing system.

RESULTSIn 108 cases of lung cancer, 36 cases were EBER1 positive and 7 cases were LMP1 positive. The expression of Bcl-2 was higher in EBV positive lung cancer tissues than that in EBV negative. The AA value was 58014.23 +/- 6918.45 and 38156.22 +/- 4096.79, while the IA value was 11.00 +/- 1.48 and 8.03 +/- 0.78 respectively. No statistic difference was fund in the expression of Bcl-2 betwen LMP1 positive and negative lung cancer tisssues.

CONCLUSIONEBV infection in lung cancer increased the expression of bcl-2, which may play a role in the occurrence or development of lung cancer. The increased expression of Bcl-2 may not be induced by LMP1. The exact mechanism need further study.

Adult ; Aged ; Epstein-Barr Virus Infections ; genetics ; metabolism ; pathology ; virology ; Gene Expression Regulation, Viral ; Herpesvirus 4, Human ; genetics ; physiology ; Humans ; Lung Neoplasms ; genetics ; metabolism ; pathology ; virology ; Male ; Middle Aged ; Proto-Oncogene Proteins c-bcl-2 ; genetics ; metabolism ; Viral Matrix Proteins ; genetics ; metabolism

OBJECTIVESTo examine the Epstein-Barr virus (EBV) in primary lung carcinoma tissue, and to investigate the relationship between EBV infection and tumorigenesis of lung cancer.

METHODSFormalin-fixed and paraffin-embedded lung tissue specimens from surgically resected lung carcinoma tissues of 108 cases treated in Tanshan area from 2001 to 2006, which were confirmed further by histopathological examination after hematoxylin-eosin (HE) staining, were used to observe the EBV encoded RNA-1 (EBER1) using in situ hybridization (ISH).

RESULTSEBER1 was detected in 36 of the 108 primary lung carcinoma cases, and in 1 of the 22 normal lung tissues. The positive rates of EBV infection in squamous cell carcinoma, adenocarcinoma, small cell carcinoma and large cell carcinoma were 35.9%, 31.6% 31.0%, 1/2, respectively. Gender, age and clinicohistopathological type were not found to have any correlation with EBER1 expression, but EBER1 expression in groups of cases with poorly and moderately differentiated carcinomas was significantly higher than those in the group of cases with well differentiated carcinoma, and the EBER1 expression in the right lung was higher than in the left lung.

CONCLUSIONSThe frequency of EBV infection in this series of patients from Tangshan area was 33.3%, the results suggest that there is a relationship between EBV infection and the occurrence of the primary lung carcinoma, EBV infection might be one of the potential causes to induce lung cancer.

Epstein-Barr Virus Infections ; diagnosis ; virology ; Herpesvirus 4, Human ; genetics ; Humans ; In Situ Hybridization ; methods ; Lung Neoplasms ; pathology ; virology ; RNA, Viral ; genetics

OBJECTIVETo study the effect of Slit-Robo signal on apoptosis of human oral squamous cell carcinoma line Tb.

METHODSAfter the treatment in Tb cells with monoclonal antibodies (mAb) R5 of against Robo1 receptor extracellular domain, the apoptosis of Tb cell was examined by clone formation assay, flow cytometry, DNA ladder and Hochst-PI. The expression of fas and fasL proteins was observed by Western blotting analysis.

RESULTSAfter the treatment by R5 mAb, the proliferative rate decreased and the apoptotic rates increased, and the expression of fas and fasL proteins was up-regulated.

CONCLUSIONSSlit-Robo signal could inhibit the apoptosis of tumor cells during genesis of tongue cancer by regulating the expression of fas-fasL proteins.

Apoptosis ; drug effects ; Carcinoma, Squamous Cell ; metabolism ; pathology ; Cell Line, Tumor ; Fas Ligand Protein ; metabolism ; Humans ; Mouth Neoplasms ; metabolism ; pathology ; Nerve Tissue Proteins ; pharmacology ; Receptors, Immunologic ; Signal Transduction ; fas Receptor ; metabolism

Objective To investigate the clinical value of virtual touch tissues quantification in the evaluation of kidney stiffness in patients of diabetic nephropathy .Methods A total of 90 cases of diabetic nephropathy were divided into 3 groups:infinitesimal albuminuria ,microalbuminuria and massive proteinuria groups.And other 30 health subjects were taken as control group.The shears wave velocity ( Vs) which reflected the tissue elasticity was measured.The Vs values were compared among different groups.Results In all groups,the highest Vs was present in renal cortex .And compared with the renal cortex ,the Vs of the renal medulla and renal sinus have statistically significant differences [ the normal control group:( 3.65 ± 0.26)m/s,(2.72 ±0.35) m/s,(1.83 ±0.54) m/s,t =9.30,18.20,both P <0.05;Infinitesimal albuminuria group:(2.98 ±0.28)m/s,(2.47 ±0.33)m/s,(1.65 ±0.31)m/s,t=5.97,15.57,both P<0.05;microalbuminuria group:(2.55 ±0.22) m/s,(2.22 ±0.28) m/s,(1.54 ±0.21) m/s,t =3.86, 11.83,both P<0.05;massive proteinuria group:(1.99 ±0.28)m/s,(1.49 ±0.30)m/s,(1.01 ±0.39)m/s, t=5.85,11.48,both P<0.05].The renal cortex Vs of Infinitesimal albumonuria group ,microalbuminuria group and massive proteinuria group show a gradually decreasing trend .And the renal cortex Vs of microalbuminuria group and massive proteinuria group have statistically significant differences compared with the normal control group(t=11.79,17.79,both P<0.05).Conclusions Virtual touch tissues quantification technique can reflect the renal tissue elasticity .It will contribute to the assessment of renal function in patients with early diabetic nephropathy .

OBJECTIVETo observe the expression and clinical implication of plasma miR-328 in patients with atrial fibrillation (AF).

METHODSFifty-eight patients with AF (AF group: 17 paroxysmal AF, 21 persistent AF, and 20 permanent AF) and 15 healthy volunteers (Control group) were included. General clinical data and related biochemical parameters were collected. Plasma miR-328 levels were detected with quantitative real-time polymerase chain reaction (qRT-PCR) analysis. The correlation between plasma miR-328 and AF risk factors was analyzed.

RESULTS(1) Compared with the control group, the expression level of plasma miR-328 was significantly elevated in AF group (fold 7.72 ± 9.32) (P < 0.05). (2) In AF group, the expression of plasma miR-328 was significantly different in different type of AF[paroxysmal AF with (1.98 ± 0.81), persistent AF with (6.57 ± 5.82) and permanent AF with (13.47 ± 12.29)] (P < 0.05), and which was increased in proportion to the duration of AF. (3) There was a positive correlation between plasma miR-328 level and left atrial diameter in the AF group (r = 0.310, P < 0.05).

CONCLUSIONmiR-328 expression is significantly increased in patients with AF, which may be involved in the atrial remodeling process of AF.

Aged ; Atrial Fibrillation ; blood ; Case-Control Studies ; Female ; Humans ; Male ; MicroRNAs ; blood ; Middle Aged