Aim To determine the effect of phospholipase C(PLC) on the rabbit platelet triphosphoryl inositol(IP_3) induced by ADP,and then to explore the mechanism of anti-aggregation to platelet by PLC.Method PRP was made from rabbit blood by removing red cells,and then was parted to eight groups.The first group was treated with PSS.The second was treated with with ADP.The third was treated with ASP and then induced by ADP.Four to eight groups were treated with different dose of PLC respectively and then induced by ADP.IP_3 of rabbit platelet was made by trichloro-acetic acid method,and its content was tested by radioimmunological assay.Result IP_3 of rabbit platelet treated with PSS was 0.29 pmol/10~8 platelet.IP_3 of rabbit platelet treated with ADP was 0.39 pmol/10~8 platelet.IP_3 of rabbit platelet,which were treated with ASP 668 ?mol?L~(-1),5,10,15,20 and 25 U PLC?ml~(-1) respectively and then induced by ADP,were 0.29,0.19,0.08,0.15,0.25,0.04 and 0.18 pmoL/10~8 platelet respectively.IP_3 of ADP group was apparently higher than that of PSS group,but the IP_3 of ASP group and different dose PLC group were significantly lower than ADP group(P

Objective To explore the influence factors of thrombocytopenia in patients with severe infection in ICU ,so as to provide a reference for clinic prevention and treatment and the judgment of prognosis .Methods 76 patients(39 male ,37 female) with severe infection from May 2014 to December 2014 were retrospectively analyzed in this hospital .Among them there were 40 cases with thrombocytopenia (Group A ) ,and 36 patients without thrombocytopenia (group B) .Influence factors and prognosis differences were investigated for thrombocytopenia combine with severe infection .Results There was correlation between the age , numeration of leukocyte ,neutrophil ratio ,gram negative bacteria infection ,respiratory infection and severe infection combine with thrombocytopenia(P < 0 .05 ) ,ICU dwell time and mortality differences between the two groups was statistic significance ( P<0 .05) .Conclusion Platelet count should be monitored in patients with severe infection ,especially in those with old age ,respiratory infections ,Gram negative bacteria infection ,we should give priority intervention and find the point in time in order to prevention and cure and improve its poor prognosis .

Objective:To investigate the expression of the collagenases MMP-13 and its inhibitor, tissue inhibitor metalloproteinase-1 (TIMP-1) in the rat lung of the experimental models of COPD.Methods:Male Wistar rats (10 weeks of age) were divided into two groups—model and control groups.The rat of model group were given intratracheal lipopolysaccharide (LPS),and then animals were exposed to cigarette smoke for 32 days.The lung function was measured,and pathological changes were also observed.Transcriptional levels of MMP-13 and TIMP-1 mRNA extracted from the lungs were assessed by semiquantitative reverse transcription-polymerase chain reaction (RT-PCR).Results:(1)In COPD model group,the pathological changes of bronchi and lung tissue,the changes of lung function were similar to those of the COPD patients.(2)The mRNA expression of MMP-13 and TIMP-1 in COPD model group were significantly increased compared with those in control group( P

Positive psychology focuses on enhancing individual positive emotion and promoting the development of individual positive personality.Introducing positive psychology into the first stage of internal medical resident standardized training will improve the resident ability to solve clinical problems.It's helpful for resident doctors to improve their clinical thinking ability,doctor education innovation ability and lifelong self-education ability.It inspires their creative thinking by motivating their positive emotions It would help them to avoid occupational tiredness.Using the idea of positive psychology could improve the comprehensive quality of residents.

Objective To investigate the ultrasonographic features corresponding to classification of peripheral neuropathies in neurofibromatosis type Ⅰ.Methods Thirty-six patients with peripheral neuropathies and diagnosis of neurofibromatosis type I were enrolled in this study.Ultrasound appearance of peripheral neuropathies was analyzed and divided into four groups according to their pathological classifications.There were 19 males and 17 females with age between 7-47 years.High frequency or board frequency ultrasound probes were used for scanning.Results The ultrasound findings were varied based on different pathological classifications.Multiple nodular class(n=5) was presented as multiple nodes.Ultrasound demonstrated that tumors were multiple,oval or lobulated,and had well defined margin,and the echogenic of lesions was mainly hypoechoic.Plexiform class (n=12) was presented as cluster nodes along the peripheral nerve trunk.Ultrasound showed trunk nerves in extremities became thicker in a long range and lost the normal structure,and catenular or racemosum in shape.The echogenicity was hypoechoic.Diffuse class (n=14) was diffuse subcutaneous disease.Tumors range was infiltrative.The subcutaneous soft tissue was thicken and echogenicity was increased.The structure of nerve bundle was disturbed and associated with multiple hypoechoic nodes.Mixture class (n=5) was defined as mixture of multiple nodular class and plexiform class.In this group,diffuse disorders were co-existed with multiple nodes disorder.Conclusions The ultrasonographic appearances of peripheral nerve disorders in neurofibromatosis type I was closely corresponded to their pathological characters.And the ultrasonic examination would be helpful to diagnosis and provide important information for therapy.

This paper summarized the effects of the treatment of chronic hepatitis B (CHB) by lamivudine combined with traditional Chinese medicine or western medicine in the past few years. Combined treatment of lamivudine and the other medicine had higher efficiency than lamvudine alone in the treatment of CHB. The Combined treatment should be a tendency of the treatment for chronic hepatitis B. The focal point is that the traditional Chinese recipe produces a multitarget effect in the treatment of CHB. The combined treatment of lamivudine and traditional Chinese recipe can reduce the treatment course and the recurrence rate. Combined treatment of traditional Chinese medicine and western medicine has notable superiority and broad developing prospect in the treatment of CHB.

The present preliminary study was to observe the feasibility of the use of polylactic acid gel (PLA-G) in modified radical mastectomy and the ability of the PLA-G in the prevention of flap adhesion after operation. Sixty-eight patients were diagnosed with breast cancer, and received modified radical mastectomy from Jan. 2004 to Dec. 2006. The patients were divided randomly into a treatment group and a control group (with 34 cases each). The PLA-G was used under the surface of the auxiliary operative wound in the treatment group, and nothing was used in the control group. The wound healing, the wound complication, the amount of drainage solution, the indwelling time of the drainage tube and the auxiliary skin adhesion were evaluated after operation in both groups. There were no statistical difference on wound healing between the first intension (29:27) and the second intention (5:7), and the wound dehiscence after taking the stitches out (0:0) between the two intensions, the hematoma (0:1) and the effusion of the wound (5:6), and the flap necrosis (1:2) between two groups. There were also no statistical difference on the amount of drainage solution per day (6 +/- 3) and indwelling time of the drainage tube (6 +/- 4) after operation between the two groups (P > 0.5). After the operation, the case load with no flap adhesion in the treatment group was significant higher compared with the control group (22:8). The case load with complete acquired skin flap adhesion in the treatment group was visibly lower than in the control group (3:19), which proved that there was a significant statistical difference between the two groups (P < 0.05). This study suggested that the using of PLA-G in the breast cancer modified radical mastectomy could prevent skin flap adhesion without any harmful effects in the wound healing.
Breast Neoplasms ; surgery ; Drainage ; Female ; Gels ; therapeutic use ; Humans ; Lactic Acid ; therapeutic use ; Mastectomy, Modified Radical ; Necrosis ; Polyesters ; Polymers ; therapeutic use ; Surgical Flaps ; Tissue Adhesions ; prevention & control ; Wound Healing

The risk factors for ischemic stroke in the very old (≥ 80 years) are not exactly the same as other populations (＜ 80 years). Compared to other age groups, the incidence of ischemic stroke in the very old female population is higher, and the traditional risk factors such as atrial fibrillation and hypertension are more common, whereas diabetes, hyperlipidemia, smoking and drinking are less common. It is uncertain that whether heart failure, ischemic heart disease and high creatinine level increase the risk of ischemic stroke. Overall, the effect of traditional risk factors on ischemic stroke in the very old remains to be further studied.

A total of 94 patients aged 80 years or over diagnosed as acute ischemic stroke based on their clinical features and CT or MRI and 64 elderly people without stroke as controls were enrolled in this study. They were admitted in Beijing Hospital from September 2003 to July 2008. Blood pressure measurement, electrocardiogram (ECG) and color doppler ultrasonography in carotid arteries were performed for all of them, as well as blood glucose, lipid and fibrinogen were measured and history of hypertension,diabetes, coronary heart disease, hyperlipidemia, smoking and alcohol drinking were recorded. Univariate analysis showed that more hypertension, hyperfibrinogenemia, atrial fibrillation and carotid atherosclerosis were found in the elderly patients with ischemic stroke than in those without it ( P ＜ 0. 05 ). And, multivariate logistic regression analysis showed that hyperfibrinogenemia ( OR = 16. 23, P = 0. 009 ), atrial fibrillation ( OR = 3.47, P = 0. 080) and isolated systolic hypertension ( OR = 1.05, P ＜ 0. 01 ) all were independent risk factors for ischemic stroke in the elderly.

The prevalence of Alzheimer's disease(AD)increases along with the increase of human lifespan.AD has become one of the leading death causes.However,the exact etiology of AD remains unclear.More evidences have demonstrated that dietary factors play key roles in the pathogenesis of AD.Nutritional status evaluation and nutrition support are important in the early prevention and treatment of AD.