Cardiovascular Diseases ; metabolism ; physiopathology ; Clusterin ; metabolism ; physiology ; Humans

Objective The purpose of this study is to investigate the expression of human epidermal growth factor receptor-2(HER-2)in gastric carcinoma tissue and normal gastric tissue of these patients,and its relationship with the clinical pathological characteristic,the microvessel density( MVD) and early post-operative recurrence,and to analyze the clinical significance of expression of HER-2 in gastric carcinoma,in order to lay the theoretical foundation of effective therapy for gastric carcinoma.Methods The clinical data of 398 cases of gastric cancer and 363 cases of their adjacent non tumorous gastric tissue of Liaoning Cancer Hospital from March 2012 to July 2013 were analyzed retrospectively.The expression of HER-2 gene was detected by IHC method and Fish method.The expressive rate of HER-2 in gastric carcinoma tissue and normal gastric tissue of these pa-tients were compared,and its relationship with the clinical pathological characteristic,MVD and early post opera-tive recurrence were also analyzed.Results (1)Expressive rate of HER-2 in 398 cases of gastric cancer tissue was 14.07%(56/398),which was higher than that in all the adjacent non tumorous gastric tissue presented none expression 0(0/363)(P<0.05);(2)In gastric cancer tissue of 398,the expression of HER-2 was related with Lauren type,tumor site,vessel invasion status,TNM stage,lymph node metastases(P<0.05),and it had no cor-relation with age,sex,tumor size,histological differentiation degree,growth patterns of cancer(P>0.05).Expres-sive rate of HER-2 in T4 stage was higher than( T1 +T2 +T3 ) stage,but the difference was not statistically sig-nificant( P>0.05).(3)The value of MVD in HER-2 expressive group(58.63 ±19.97)was significantly higher than those in HER-2 non expressive group(49.04 ±19.25).A positive significant correlation was found be-tween HER-2 and MVD expression using the rank correlation matrix(P<0.001,r=4.33).(4)1 year and 1.5 year of early post operative recurrence rate in HER-2 expressive group were 16.00%、38.00%,in HER-2 non expressive group were 8.81%,25.53%,the difference was not statistically significant(P>0.05).Conclusion There is excessive expression of HER -2 in gastric cancer tissue,excessive expression of HER -2 patients withgastric cancer is correlated with Lauren type,tumor location,vessel invasion status,TNM stage,lymph node metastases;it displays no correlation with age,sex,tumor size,histological differentiation degree,growth patterns ofcancer.HER -2 expression is positively associated with MVD value.Excessive expression of HER -2 is possibleto be correlative with early post operative recurrence,and it must have further follow up to confirm.

Objective To observe the effect of propofol on phosphorylation of a-amino-3-hydroxy-5-methyl-4-isoxa-zolep-propionate receptors (AMPARs) GluR1 subunit and long-term potentiation (LTP) in cultured hippocampal neurons in aged rats.Methods A total of 30 18-month-old rats were decapitated,the brains were rapidly removed and hippocampal slice were prepared.The slices were randomly divided into control group (perfused with artificial cerebrospinal fluid,n=10),propofol-treated group (perfused with propofol in artificial cerebrospinal fluid,n=10)and propofol+ phorbol-12-myristate-13-acetate (PMA)-treated group (perfused with propofol and phorbol ester in artificial cerebrospinal fluid,n=10).Extracellular excitatory postsynaptic potentials (EPSP) were recorded from the CA1 region of hippocampal slices.After perfusion for 20 min,LTP was induced using higher-frequency stimulation (HFS,100Hz,400 pulse) by the Schaffer-collateral pathway.The phosphorylation of AMPA-GluR1 subunit was assayed in cultured rat neurons by Western blot.Results The value of EPSP in propofol-treated group (105.50 ± 3.77) was much lower than in control group (242.10±14.68) and in propofol+ PMA-treated group (239.40±8.98) (F=2.90,P＜0.05),and there was no significant difference in the value of EPSP between control group and propofol+ PMA-treated group (P＞0.05).The level of P-Glu1/Glu1in propofol-treated group (0.68±0.15) was much lower than in control group (1.67±0.20) and in propofol+PMA-treated group (1.57±0.18) (F=6.84,P＜0.05),while there was no difference in the level of P-Glu1/Glu1 between control group and propofol + PMA-treated group (P ＞ 0.05).There was no difference in the value of GluR1/β-actin among the three groups (F=0.31,P＞0.05).Conclusions Propofol possesses the ability to inhibit LTP induction and attenuate AMPA receptor GluR1 subunit phosphorylation through modulation of PKC pathway.

Age-related macular degeneration (AMD) and cataract are the most common causes of low vision worldwide.Nowadays, there is still a controversy about whether cataract surgery should be taken in patients combined with AMD and when should the surgery be taken.The aim of this review is to assess the influence of cataract surgery on the occurrence and development of AMD, to analyze the risk factors, to explore the occasion of cataract surgery in patients with AMD, and joint with anti-vascular endothelial growth factor (VEGF) treatment, also including the development and application of intraocular lens.It helps to avoid and postpone the development and progression of macular degeneration after cataract surgery and get good visual outcome.

Objective To investigate the effects of flumazenil and naloxone on scopolamine-induced impairment of spatial working memory in rats.Methods Forty pathogen-free SD rats weighing 160-200 g were randomly divided into 4 groups(n=10 each):group I control(group C);group IIscopolamine(group S);group III flumazenil+scopolamine(group SF)and group IV naloxone+scopolamine(group SN).Scopolamine 0.8 mg/kg was administered IP once a day for 3 consecutive days in group II-IV.In group SF and SN flumazenil 0.5 mg/kg and naloxone 2 mg/kg were administered IP respectively once a day for 3 consecutive days in addition to scopolamine.Thirty minutes after last IP administration,cognitive function was assessed using Y-maze.The animals were killed after cognitive function assessment and bilateral hippocampi Were isolated for determination of mAChRM1 mRNA expression(by RT-PCR)and detection of ChAT positive neurons(by immuno-histochemistry).Results Cognitive dysfunction developed in group S as compared with control group and was ameliorated in group SF and SN.The number of ChAT positive neurong and mAChRM1 mRNA expression were significantly decreased in group S compared with control group and were significantly higher in group SF and SN than in group S.Conclusion Flumazenll and naloxone can ameliorate the scopolamine-induced impairment of spatial working memory by improving cholinergic neuron function.

Six cases of Paget′s disease of bone, including 5 males and 1 female, aged (57. 7 ±11. 8) years old, were recruited. Mean duration of disease was (7. 5±6. 5) years. Clinical manifestations were bone pain and bone deformity. The lesions mainly reside in the pelvis and femur. X-ray film showed typical lesion of Paget′s disease of bone, such as impaired bone trabecular structure with coarseness and disorder, cortical thickening, medullary cavity narrowing and skeletal deformation. Bone scan revealed abnormal radionuclide concentration in the involved bone. Serum alkaline phosphatase ( ALP) in 6 patients was increased ( median 235 U/ L). 5 patients received zoledronic acid sodium intravenous infusion therapy. Bone pain was relieved obviously in 5 patients after treatment for 2-3 months. Physical activity was greatly improved, and serum ALP levels significantly decreased.

A 47-year-old Chinese man with hypophosphatemic osteomalacia suffered from bone pain, difficulty in walking and pseudo-fractures. Biochemical examination showed a lowered serum phosphorus level and an elevated alkaline phosphatase level. The X-ray examination showed pseudo-fractures of multiple ribs, low bone density, biconcave deformities of the lumbar vertebrae, and pseudo-fracture of the right superior ramus of the pubis. A diagnosis of hypophosphatemic osteomalacia was made. The case was treated with oral neutral phosphate solution, calcitriol and Caltrate D. After treatment for two years, biochemical indicators were improved, and pseudo-fractures healed. Clinically, hypophosphatemic osteomalacia is often overlooked or misdiagnosed. In addition, the duration and dosage of these drugs should be appropriate, in order to avoid tertiary hyperparathyroidism or poor response to treatment.

Objective To study the related factors and how they influence the formation of collateral circulation in patients with severe coronary arteries stenosis. Methods A total of 111 consecutive patients were catagorized into 3 groups according to their grading of collateral connections which were: CC0 (n=27), CC1 (n=45) and CC2 (n=39) respectively. Serum lipid levels were measured including total cholesterol, triglycerides, high density lipoprotein cholesterol and low density lipoprotein. All patients received UCG examination within one week after admission. Results (1)Serum lipid levels: the total cholestoral level in the CC2 group (4.23?0.71 mmol/) was lower than those of the CC0 group (4.81?0.88 mmol/L, P0.05) and the CC2 group (1.40?0.24 mmol/L, P

Objective To investigate the electromyographic(EMG)characteristics of sternocleidomastoid muscle in patients with motor neuron disease.Methods The clinical and EMG data of 461 patients of MND group and 349 of non-MND group were analyzed retrospectively.Results The abnormality rate of sternocleidomastoid EMG in MND group was 60.3%,much higher than that in non-MND group(4.6%)(P

Heat shock protein (HSP) is a family of poly-peptdic-proteins with many members. A great deal of data show that heat shock proteins act as molecular chaperones to regulate protein folding, translocation and assembly, it can combine with other peptidic-proteins existing in cells and participating in the process of anti-damage, repair and thermotolerance of cells. In recent years, with the progress of research in this field, it has arisen extensive attentions of the application of heat shock proteins in etiology , therapeutics and prevention of tumor. HSP becomes one of the most active research field.