OBJECTIVE:To study pharmacodynamics of different approaches of using low peptide of E’ jiao. METHODS: Anemia model rabbits and immunosuppressed model mice were induced by injecting with phenylhydrazine hydrochloride subcutaneously and hydrocortisone via i.p. respectively then treated with low peptide of E’ jiao (1～3 kD) via i.p., low peptide of E’ jiao of lower than 5 k and 5% E’ jiao solution via i.g. The values of Hb, RBC, WBC in model rabbits were measured after 7 days of medication and spleen weigh index was detected after 6 days of medication. The healthy mice were treated with low peptide of E’ jiao (1～3 kD) via i.p., low peptide of E’ jiao of lower than 5 k via i.g. and glucose solution via i.g. Then the load swimming time was determined after 14 days of medication. RESULTS: Chemical medicine-induced anemia was improved by 1～3 kD low peptide of E’ jiao increasing the amount of Hb. Low peptide of E’ jiao of lower than 5 k could not produce such an good effect on anemia but was eaqul to oral E’ jian in increasing the value of RBC, WBC. Low peptide of E’ jiao was helpful to or had effect on anti-fatigue and remarkably increased spleen index of mice. CONCLUSION: Low peptide of E’ jiao used by different approaches can strengthen immunity.

OBJECTIVETo verify the clinical efficacy on post-stroke dysphagia treated with acupuncture at Lianquan (CV 23).

METHODSOne hundred and eighty patients were randomized into an acupuncture A group, an acupuncture B group and a rehabilitation group, 60 cases in each one. On the basis of the conventional medication, in the acupuncture A group, acupuncture was applied at Lianquan (CV 23); in the acupuncture B group, acupuncture was applied at Hegu (LI 4) and Neiguan (PC 6) and in the rehabilitation group, the swallowing rehabilitation training was adopted. The treatment was given once a day, 5 times a week, and the 4 weeks of treatment was required in all of the groups. The national institute of health stroke scale (NIHSS) and TV X-ray fluoroscope swallowing scale (VFSS) were used to evaluate neurologic deficit and swallowing function before and after treatment in the patients of each group. The morbidity of pneumonia and clinical efficacy were compared among the groups.

RESULTSThe scores of NIHSS and VFSS were improved apparently after treatment in the patients of the three groups (all P < 0.05) and the results in the acupuncture A group were superior to those in the other two groups (all P < 0.05). The morbidity of pneumonia in the acupuncture A group was lower than that in the acupuncture B group and the rehabilitation group [3.3% (2/60) vs 6.7% (4/60), 8.3% (5/60), both P < 0.05]. The effective rate in the acupuncture A group was better than that in either of the other two groups [95.0% (57/60) vs 81.7% (49/ 60), 75.0% (45/60), both P < 0.05].

CONCLUSIONOn the basis of the conventional medication, acupuncture at Lianquan (CV 23) effectively improves the swallowing function, relieves neurological deficit and reduces the morbidity of pneumonia in the patients of post-stroke dysphagia.

Acupuncture Therapy ; Aged ; Deglutition ; Deglutition Disorders ; etiology ; physiopathology ; therapy ; Female ; Humans ; Male ; Middle Aged ; Quality of Life ; Stroke ; complications ; Treatment Outcome

Objective To explore the different characteristics of tumor recurrence after liver transplantation (LT)and hepatectomy(HC)in patients with hepatocellular carcinoma(HCC).Methods The literatures about tumor recurrence of HCC after LT and HC were reviewed and their characteristics were compared.Results There are distinctions of recurrence rates,time,common sites between the recurred tumors after LT and HC,and their correlation factors and mechanisms of recurrence are also different.Conclusion Preventive measures should be strengthened and treatments should be more targeted according to the different characteristics of tumor recurrence after LT and HC to improve postoperative life quality and increase the survival rate.

Objective To investigate the effect of pioglitazone on the expression of thrombospondin-1(TSP1)and transfor ming growth factor-β1 (TGF-131)in the kidney of diabetic rats.Methods Forty Sprague-Dawley(SD)rats were randomly divided into 4 groups:normal control(NC),streptozocin-induced diabetic mellitus(DM),diabetic rats treated with pioglitazone(DP)and normal control rats treated with pioglitazone(NP).24-h urine protein quantity,serum creatinine(Scr) and kidney hypertrophy index were measured after treatment for 10 weeks,and the expression of TSP1 and TGF-β1 in the kidney was detected by using RT-PCR and immuohistochemistry.Results As compared with DM group,urine protein level and kidney hypertrophy index were significantly attenuated in DP group(P<0.05),but there was no significant difference in plasma glucose between them(P>0.05).As compared with NC and NP groups,the expression of TSP1 and TGF-β1 was significantly elevated in the kidney of DM and DP groups(P<0.01).Both TSP1 and TGF-β1 expression in DP group was lower than in DM group(P<0.05).Conclusion Pioglitazone can exert a direct protective effect on the kidney in diabetic rats,which is independent of the role of insulin sensitizer,and the mechanism may be associated with the decreased TSP1 expression in the kidney.

BACKGROUND:Cord tissues,which immune system is relatively non-development with low expression of MHC,rely on the protection of the mother's immune system.Accordingly,studies underlying biological characteristics of umbilical cord mesenchymal stem cells (MSCs) arouse more and more attention.OBJECTIVE:To isolate,separate,and culture MSCs from the tissues of umbilical cord,and to explore the ability of multi-directional differentiation.DESIGN,TIME AND SETTING:The in vitro cytology experiment was performed at the Laboratory of Tissue Engineering of Sichuan University from October 2006 to May 2007.MATERIALS:The umbilical cord of healthy neonate with 37-40 weeks gestational age was obtained from delivery room of the Second West China Hospital,Sichuan University.METHODS:Pieces of umbilical cord were dissected along its long axis,vessel was pulled away,then cord was tied together with a suture creating "loops",then it was placed into collagenase solution,after 6-8 hours,suspended cells obtained from the loops suspension were centrifuged and cultured with adherent method,pass,aged when single cell-derived colonies were appeared.Finally,the 5th generation of cells was induced differentiation towards osteoblasts and lipoblasts.MAIN OUTCOME MEASURES:Morphology,growth,surface antigen expression,as well as the multiple differentiation potential of umbilical cord MSCs.RESULTS:The adherent cells obtained from umbilical cord after removal vessels showed short rod-like or fusiform shape,which can be proliferated and form single cell-derived colonies.Cells isolated from the umbilical cord high expressed integrin markers (CD29,CD51,CD71) but not hematopoietic lineage markers (CD34,CD45 and HLA-DR).These colonies can differentiate into osteoblasts that produce mineralized matrices,stained by alizarin red and alkaline phosphatase,and differentiate adipocytes that accumulate lipid vacuoles and are demonstrated by morphology,stained by oil red.CONCLUSION:Umbilical cord tissue contains a high number of MSC-like elements forming colonies that may be successfully expanded in culture.The proliferation colonies present matrix ceil immunophenotypes,and can differentiate into osteobiasts and adipocytes.

Machixian Oral liquid was made from Portulaca oleracea L. Pharmacologic studies proved that it can obviously inhibit blood platelet aggregation and showed hypolipemia activity.A comprehensive investigation of the preparation was studied and a practical quality control was dcvised to ensure its therapeutic efrect.

Objective: To investigate the hemodynamic changes of ophthalmic artery(OA) and central retinal artery(CRA) in patients with primary angle-closure glaucoma(PACG) and the effects of intraocular pressure(IOP) on retrobulbar hemodynamics. Methods: Following the measurement of IOP by non-contact tonometry,hemodynamic changes of OA and CRA were examined by color Doppler imaging(CDI) in 45 patients(90 eyes) with PACG,who were divided according to IOP into a hypertension(38 eyes) and a normal tension group(52 eyes).Observations were made of the peak systolic velocity(PSV),end-diastolic velocity(EDV),pulsatility index(PI) and resistance index(RI).Results: Significant differences were found between the PACG patients and the normal controls in CRA-EDV(P

AIM: To determine the dissolution of Longdan Xiegan Pills(Radix et Rhizoma Gentianae,Radix Scutellariae,Fructus Gardeniae,etc.) on the basis of markers such as gentiopicroside,baicalin and geniposide. METHODS: According to Appendix ⅩCⅢ of Chinese Pharmacopoeia 2005 edition VolⅡ,dissolution medium was 100 mL 0.5% SDS aqueous solution and rotating speed was 100 r/min.The dissolution solution of pill was taken and analyzed by HPLC method.A column of Kromasil C_(18)(4.6 mm?250 mm,5 ?m) was used.The mobile phase composed of A acetonitrile,B 1% glacial acetic acid aqueous solution,gradient eluation.The flow rate was 1.0 mL/min with the detection wavelength at 254 nm. RESULTS: The average dissolution of three batches of gentiopicroside,baicalin and geniposide exceeded the marker amount by factor of 0.75 time in 4 h. CONCLUSION: A reliable and qualitative method is established with good reproducibility for determination of dissolution of Longdan Xiegan Pills.

Apelin is a polypeptide consisting of 77 amino acids. Apelin receptors are found to be the angiotensin-like G protein coupled receptor (APJ). Apelin/APJ system is widely distributed in the peripheral and central nervous system. Apelin-13 is one of the subtypes of Apelin, which has strong biological activity. This study reviewed the new research prog?ress of Apelin-13 on physiological and pathological processes involved in the cardiovascular system, respiratory system, ner?vous system, digestive system and endocrine system.

Objective To analyze the causes of misdiagnosis of uterine sarcomas and to explore the measures to reduce these errors. Methods A retrospective study of 40 cases of uterine sarcomas admitted between January 1980 and June 2002 to our hospital was performed. Results Uterine sarcomas were easily misdiagnosed as leiomyomas. A correct diagnosis of uterine sarcoma was made at primary operation in 15 cases (37.5%). A wrong diagnosis was made in 25 cases (62.5%), and among them re-operation was done in 15 cases. In 7 patients, three operations were performed. Recurrence rate was as high as 64.0%. The rate of hematogenous dissemination was also high. The patients in whom a misdiagnosis was made at their primary operation were younger in age than the patients in whom a correct diagnosis was made (43 years vs 50 years). The amounts of bleeding and transfusion during operations were increased in patients with misdiagnosis. Conclusions Atypical manifestations and lack of knowledge about the diseases were the main causes for misdiagnosis of uterine sarcomas. Misdiagnosis might be avoided by a comprehensive analysis of all clinical information. Radical resection of the primary tumor was the most significant means to ensure a better prognosis.