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 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

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 .

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.

BACKGROUND: It is still disputed whether several growth factors of platelet-rich plasma and the fascia with blood vessels can promote bone regeneration and vascularization. OBJECTIVE: To evaluate the effects of platclet-rich plasma and the fascia with blood vessels on the vascularization of tissue-engineered bone composited by marrow stromal stem cells (MSCs) and decalcified bone matrix (DBM). DESIGN, TIME AND SETTING: The present single-sample observation, self-control animal experiment was performed at the Central Laboratory Center, Affiliated Hospital of Qingdao University Medical College between October 2004 and November 2007. MATERIALS: Twelve healthy hybrid dogs, aged 11-12 months, weighing 20-25 kg, equal number of males and females, were included for this study. METHODS: ①MSCs were isolated from dog bone marrow by density gradient centrifugation, followed by in vitro adherent culture and ontogenesis culture.Dog femur was taken for preparation of DBM and composited with MSCs.②The back of each dog was divided into 4 regions (A,B,C,and D).In the regions A and B, DBM/MSCs/platelet-rich plasma composites were transplanted. In the regions C and D, DBM/MSCs composites were transplanted. The implants for the regions A and C were wrapped with latissimus dorsi fascia with blood vessels. The implants for the regions B and D were wrapped with blood vessels-free superficial fascia from back. At weeks 4,8,and 12,4 dogs comprising 2 males and 2 females, were sacrificed following anesthesia for specimen harvesting. MAIN OUTCOME MEASURES:①MSC morphology was observed utilizing a phase contrast microscope, and cell growth curves were portrayed by methyl thiazolyl tetrazolium colorimetric assay.②Morphology of osteoblasts induced was observed by modified alkaline phospharase (ALP) staining (Ca-Co method), Von Kossa method, alizarin red method and calcium node staining.③Composite structure was observed through the use of inverted phase contrast microscope and scanning electron microscope.④Gross, radiological, and histological observations. RESULTS: ①Both induced osteoblasts and MSCs exhibited ALP and calcium node stainings positive.②The growth curves of induced osteoblasts and MSCs presented with typical "S" shape.③Following composite culture of allogenic DBM and MSCs, MSCs grew well, rapidly proliferated and could secrete a great amount of extraccllular matrix.④At each time point, osteogenic bone mass, bone absorbance, and vascularization were better in regions A,B,and C than in region D (P＜0.05). CONCLUSION: Histological and radiological observations have confirmed that both platelet-rich plasma and the fascia with blood vessels can synergistically promote the formation and vascularization of tissue-engineered bone.

Objective To evaluate the value of uhrasonography in diagnosing the occult dorsal carpal ganglion. Methods Sixteen patients with chronic dorsal wrist pain received ultrasound examination. Eleven ofthem were treated with surgical therapy. And they were followed up for 1-8 months. Results The ultrasound characteristics of oecuh dorsal carpal ganglion were depicted as follows;①The dorsal cortical bone of scaphoid and lunate was continued and without damage. ② An oval anecho lesion with clear boundany, smooth ganglion wall, lateral shandowing and posterior enhancement could be detected in the dorsal part of scapholunate joint. ③Color Doppler flow imaging showed there was not obvious blood flow signals inside and around the ganglion. Conclusions Uhrasonography could be acted as a routine examination technique after the X-ray examintion in the diagnosis of the the occult dorsal carpal ganglion.

10.3969/j.issn.1000-8179.2013.12.007

Objective To explore the effect of evidence-based care on the constipation of psychiatric patients.Methods The constipations in 328 psychiatric patients admitted to our department were intervened with evidence-based nursing.Frequency for defecation,incidence of difficult defecation and incidence of dry stool before intervention were compared to those two weeks after intervention.Result Two weeks after intervention,the defecation frequency,incidence of difficult defecation and incidence of dry stool were all significantly lower than those before the intervention(P<0.001).Conclusions The evidence-based nursing used in care to psychiatric patients with constipation can reduce the incidence of constipation,and relieve their physiological and psychological pains.