Acupuncture Points ; Diagnosis, Differential ; Humans ; Medicine, Chinese Traditional

BACKGROUND:It is wel known that long-term aerobic exercise aleviates renal dysfunction in spontaneously hypertensive rats. However, the underlying molecular mechanism remains unclear.
OBJECTIVE:To investigate the effect of long-term aerobic exercise on endogenous formation of hydrogensulfide in the kidney of spontaneously hypertensive rats.
METHODS:Rat models of long-term aerobic exercise were established and randomly assigned to four groups: Wistar-Kyoto (WKY) rat static group, WKY rat exercise group, spontaneously hypertensive rat static group and spontaneously hypertensive rat exercise group. Moderate-intensity exercise on treadmil was given for 12 weeks. At 24 hours after model establishment, weight was weighted. Blood pressure was detected in the caudal artery. Blood and urine were colected for measuring biochemical indicators related to kidney functions. The degree of glomerular sclerosis was observed. Hydrogen sulfide production activity was detected in the kidney. RT-PCR was used to detect mRNA expression levels of hydrogen sulfide production-related enzymes. Simultaneously, oxidative stress of the kidney was observed.
RESULTS AND CONCLUSION:(1) Long-term aerobic exercise obviously reduced body mass, systolic blood pressure and diastolic blood pressure, increased glomerular filtration rate and renal blood flow, decreased serum creatinine and urea nitrogen levels, urinary albumin levels, significantly reduced glomerular sclerosis score, increased hydrogen sulfide content in plasma and the rate of hydrogen sulfide formation in renal tissue, up-regulated cystathionine γ-lyase expression, obviously diminished malondialdehyde content in serum and kidney, and remarkably increasedthereduced glutathione and oxidized glutathione ratio in spontaneously hypertensive rats. (2) Results indicated that long-term aerobic exercise could increase the generation of endogenous hydrogen sulfide in kidney, lessen oxidative stress in the kidney, and amelioraterenal dysfunction in spontaneously hypertensive rats.

AIM: To investigate the effect of lipopolysaccharide (LPS) on the mRNA expression of Toll-like receptor 4 (TLR4) and CD14 in lens epithelial cells (LECs).METHODS: The cultured LECs were incubated with defferent concentrations of LPS for defferent times.The mRNA expression of TLR4 and CD14 in LECs were detected by reverse transcription polymerase chain reaction (RT-PCR).RESULTS: The mRNA expression of TLR4 in the LECs treated with LPS at concentrations of 50 μg/L, 100 μg/L, 200 μg/L, 500 μg/L or 1 000 μg/L was higher than that in the LECs without LPS treatment (P<0.01), respectively.The mRNA expression of TLR4 in the LECs incubated with 100 μg/L LPS for 24 h, 48 h or 72 h was higher than that in LECs without LPS treatment at same time points (P<0.01).The mRNA expression of CD14 in the LECs incubated with LPS at concentration of 100 μg/L for 24 h was also higher than that in the LECs without LPS treatment (P<0.01).CONCLUSION: LPS enhances the mRNA expression of TLR4 and CD14 in LECs, which may be related to intraocular response, as well as to the formation and development of after-cataract.

Objective To study the postoperative MRI changes of the intracranial tumor.Methods 105 cases of brain tumor comfirmed by operation and pathology were analyzed and 15 cases of those were examined within a week after surgery prespectiviely.All cases were performed by postcontrast MRI at least one time after surgery.Results The findings of postoperative brain tumor on MRI were as follows:(1)The incidence of the benign postoperative enhancement was 52.4%.Its feature between 7 to 30 days presented as circular without any nodular or mass-like enhancement.The margin of enhanced ring was clear,thickness(usually

AIM:To evaluate changes in tear film stability and meibomian gland function and the clinic efficacy of three different artificial tears in patients with preoperative dry eye after phacoemulsification.METHODS:All 90 cataract patients (90 eyes) with preoperative dry eye who underwent phacoemulsification randomly divided into three groups (Group A treated with protein-free calf blood extract ophthalmic gel;Group B treated with sodium hyaluronate eye drops;Group C treated with Vitamin A palmitate eye gel).Ocular Surface Disease Index (OSDI), Schimer's I test(SⅠt), tear film break time (BUT), corneal fluorescein staining (FL) and meibography were performed for all patients preoperatively and 7, 30 and 90d postoperatively.RESULTS:No statistical differences existed among the three preoperative groups (P>0.05).Except meibomian gland score, there was no statistical significance among preoperatively and 7, 30, 90d postoperatively of the three groups (P>0.05).At 7d postoperatively, SⅠt and BUT of every group were lower than those before treatment, FL scores and OSDI scores were higher than those preoperative (P<0.05);there were no statistical differences among the three groups(P>0.05).At 30d postoperatively, SIt, BUT, OSDI scores in group A and C were better than in group B, which displayed statistical differences (P<0.05);FL scores in group A were significantly better than in group B and C (P<0.05).At 30, 90d postoperatively, SIt, BUT, FL scores, OSDI scores were better than preoperative results, which displayed statistical differences (P<0.05).There were no statistical differences among the three groups at 90d postoperatively (P>0.05).CONCLUSION:Tear film stability and meibomian gland function were affected by phacoemulsification.Topical application of deproteinised calf blood extract eye gel, sodium hyaluronate eye drops and Vitamin A palmitate eye gel all hase a clearly beneficial effect on subjective symptoms.Deproteinised calf blood extract eye gel and Vitamin A Palmitate Eye Gel had more powerful effect on BUT than sodium hyaluronate, however deproteinised calf blood extract eye gel is more effective in superficial punctuate keratopathy.

Objective To clone the human gene of Hepatitis B virus e antigen binding protein 1 (HBEBP1), which was screened with yeast two-hybrid system and bioinformatics techniques, to construct prokaryotic expression vector of pET-32a(+)-HBEBP1, and to induce the expression of recombinant protein in E. coli BL21. Methods The DNA fragment of HBEBP1 of about 372bp was amplified by reverse transcription PCR (RT-PCR), in which the mRNA was taken from HepG2 cells as the template, and cloned into pGEM-T vector. After restriction enzyme digestion identification and sequencing, the correct target DNA fragment was inserted into inducible prokaryotic expression vector pET-32a(+) and then transformed into competent E. coli BL21. By restriction enzyme digestion and PCR, the positive transformed clones were identified and induced with IPTG to obtain fusion protein. The HBEBP1 fusion protein was analyzed by Western blotting hybridization. Results The 372bp DNA fragment of HBEBP1 was amplified by RT-PCR. The recombinant expression vector pET-32a(+)-HBEBP1 was constructed successfully. After transformation with pET-32a(+)-HBEBP1 and induction with IPTG, the recombinant target protein of about 33kD was obtained, which was consistent with our anticipation. Western blotting assay showed that the protein had good specificity. Conclusions The recombinant prokaryotic expression vector pET-32a(+)-HBEBP1 is constructed, and the HBEBP1 gene is cloned successfully. The HBEBP1 fusion protein could be expressed in prokaryotic expression system of E. coli. These results lays a foundative for studying the immunogenicity and the biological characteristics of the HBEBP1 protein.

Objective To observe bone marrow MR imaging of adult acute leukemia patients in first diagnosis and to reveal the rule of bone marrow infiltration and the role of MRI in diagnosing and predicting the prognosis of untreated acute leukemia adult patients. Methods Fifty-four adult acute leukemia patients received MRI after diagnosis relying on FAB subtype and immunophenotyping including 28 cases with AML and 26 cases with ALL. MR imaging was obtained by the short time inversion recovery and T 1W spin echo technique of pelvis and femur at one time. The examining results of morphology and blood routine were collected at the same time. 15 age-matched volunteers were selected as controls. Results MRI showed that bone marrow of all patients were infiltrated by leukemia cells. The MRI appearance was classified into five patterns based on scope of focus. MRI patters from grade 1 to grade 3 were observed in most of patients with AML and in none with ALL, however, all patients with ALL distributed in grade 4 to grade 5. The distribution of patterns had significant difference between AML and ALL (P

Acute Disease ; Angioplasty, Balloon, Coronary ; adverse effects ; Compartment Syndromes ; etiology ; Female ; Humans ; Middle Aged

OBJECTIVE:To discuss the relationship between the changes in pla sma endotoxin levels and use of antibiotics in patients with serious traumatic injury before and after operation.METHODS:The plasma bacterial endotoxin levels were dynamically detected by kinetic turbidimetric assay in20patients with severe traumatic injury used with different antibiotics before and after operation,at the same time the normal control group was established.RESULTS:Plasma endotoxin levels in patients with severe traumatic injury increased remarkably before and after operation,as compared with the normal control group(P0.05).CONCLUSION:Intestine-borne endotoxin induced in a stress condition can strengthen the pathological reaction of the body ,therefore dy?namic detection of plasma endotoxin can provide guidance for clinical therapy.