ObjectiveTo study the effect of exercise training on β-amyloid polypeptide (Aβ) and β-secretase(BACE) in the hippocampus of the rats with vascular dementia (VD).Methods 30 Sprague-Dawley (SD) rats were carried out to an exercise group (n =10 ),a model group (n =10 ),and a sham-operation group ( n =10 ).VD rat models were made by the ligation of bilateral common carotid arteries.Morris water maze test were carried out 4 weeks after the operation to assess the ability in learning and memory of the rats and Aβ and β-secretase (BACE)expression was detected in the hippocampus of the rats using immunohistochemical techniques.ResultsIn the Morris water maze test,the model group showed reduction in the learning and memorizing ability,with obvious longer escape latencies ( ( 101.34 ± 19.67 ) s,(95.42 ± 23.89 ) s,( 89.39 ± 22.67 ) s,( 90.12 ± 19.77 ) s,respective-ly) than that of sham-operation group ( ( 62.13 ± 11.38 ) s,( 24.84 ± 13.69 ) s,( 16.98 ± 12.51 )s,( 11.41 ± 8.93 ) s,correspond-dingly) (P ＜ 0.05 ),and the exercise group was improved in the learning and memorizing ability ( corresponding to ( 80.15 ± 21.56 ) s,( 51.24 ± 20.91 ) s,( 43.78 ± 22.36) s,( 45.67 ± 20.87 ) s ),compared with the model group(P＜0.05).The grey values of Aβ in the hippocampus of the rats for the exercise group was ( 130.12 ± 19.01 ),( 116.77 ± 23.67 ) for the model group and ( 148.44 ± 17.67 ) for the sham-operation group(P＜ 0.05).The grey values of BACE in the hippocampus of the ratsfor the exercise group were( 131.21± 25.25 ),( 120.53± 10.21 ) for the model group(P＜ 0.05 ) and ( 162.38 ± 28.11 ) for the sham-operation group (P ＜ 0.05).ConclusionExercise training can lower the expression of BACE and Aβ in the hippocampus of rats with VD,therefore improving the learning and memory ability of rats with VD.

Objective To investigate the effects of rehabilitation training on hippocampal amyloid-beta peptide (Aβ) and insulin-degrading enzyme (IDE) levels in vascular dementia (VD).Methods Thirty female Sprague-Dawley rats were randomly assigned to a rehabilitation group (n =10),a model group (n =10) or a sham-operation group (n =10).An experimental VD model was established in the rats of the first 2 groups by bilateral common carotid artery permanent ligation.The rats in the rehabilitation group then received 1 h of rehabilitation training daily.Learning and memory were assessed at 4 weeks aftet the operation.Immunohistochemical staining was used to detect Aβ and IDE expression in the hippocampus dentate gyrus (DG) area.Results The rats in the rehabilitation group showed significantly better learning ability compared with the model group.The expression of Aβ in the rehabilitation group was significantly less than in the model group.The expression of IDE in the rehabilitation group was significantly greater Conclusion Rehabilitation can accelerate the recovery of learning and memory in VD,at least in rats The mechanism is possibly related to decreased accumulation of Aβ in the hippocampus due to up-regulation of the expression of IDE.

Adult ; Carcinoma, Small Cell ; pathology ; Ethmoid Sinus ; pathology ; Frontal Lobe ; pathology ; Humans ; Male ; Maxillary Sinus Neoplasms ; pathology ; Paranasal Sinus Neoplasms ; pathology ; Skull Base ; pathology

Objective To investigate the symptoms and the needs of transitional care for the patients with lung cancer at the intermission of chemotherapy and provide references for the symptom management and carrying out transitional care. Methods Totally 156 patients with lung cancer were investigated by questionnaire survey. Results With the increase of chemotherapy, symptoms such as cough, sputum, dyspnea were relieved after chemotherapy(F=18.266, 20.463, 17.371, P < 0.05), but symptoms like fatigue, nausea, vomiting, loss of appetite, sleep uncomfortable were worse than before(F=15.821, 20.116, 16.439, 13.541, 9.528, P<0.05,<0.01). Negative emotions like bitterness and sadness had no obvious change. Symptoms affected the patients′mood, the incidence and severity were higher after chemotherapy(χ2=43.162, F=11.683, P < 0.05), as for general activity and walking, the incidence and severity were higher after the first cycle chemotherapy and the second cycle(χ2=42.589, 37.689, 39.125, F=9.148, 15.325, 14.758, P < 0.05), but after 4 cycles of chemotherapy, it did not change significantly (P>0.05). 79.49%(124/156)patients did not know the content and function of transitional care, 98.72%(154/156)patients hope to get transitional care through the hospital. Conclusions Symptoms by side effects were getting worse for patients with lung cancer and influenced their daily life. Patients got to know less about transitional care, however they had a strong need for transitional care. We should
reinforce the management of symptoms and transitional care to improve their quality of life.

Objective To investigate the diagnosis and the microsurgical treatment of intramedullary hemangioblastoma in cervical spinal cord.Methods The signs of MRI,and the results of operations were analysed in 26 patients with the tumors.Rusults The tumors can be classified into two types:Solid type (14 cases)and cystic type(12 eases).All the tumors underwent total removal and were all hemangioblastoma confirmed by histopathologic examinations.Postoperatively,neurological status were improved in 17 patients, remained in 7 cases and worse in 2 cases.Conclusion For intrameduUary hemangioblastoma of cervical spinal cord MRI is of significant importance in the diagnosis of localization and the nature of the tumors which is conductive to selecting appropriate operative methods.There is high risk in operating at cervical section,but microsurgical total resection is the optimal method to stop the development of the clinical presentation.Opera- tive methods varied with the different typer of the tumor.It is the most important principal that dissection is performed along the correct interface and the tumor should be removed en bloc after it is devascularized.

OBJECTIVETo compare clinically therapeutic effects of warming needle moxibustion and simple acupuncture on knee osteoarthritis.

METHODSOne hundred and twenty cases conformed with the diagnostic criteria of knee osteoarthritis with TCM kidney-yang deficiency and cold syndrome were randomly divided into a warming needle moxibustion group and a simple acupuncture group. Guanyuan (CV 4), Qihai (CV 6), Zusanli (ST 36) and others were selected in the two groups. Their therapeutic effects were assessed with joint pain scale, knee osteoarthritis severity index scale and cold syndrome differentiation factors.

RESULTSBoth warming needle moxibustion and simple acupuncture could alleviate pain of knee osteoarthritis, improve dysfunction of the knee joint, reduce symptoms. The clinically basic cured rate and the total effective rate were 32.1% and 96.4% in the warming needle moxibustion group, which were better than 7.4% and 92.6% in the simple acupuncture group.

CONCLUSIONWarming needle moxibustion is an effective therapy for knee osteoarthritis with kidney-yang deficiency and cold type.

Acupuncture Therapy ; Humans ; Moxibustion ; Needles ; Osteoarthritis, Knee ; therapy ; Yang Deficiency

OBJECTIVETo explore the clinical results of surgical treatment for old pelvic fractures with reconstruction plate.

METHODSFrom February 2000 to February 2011, 24 patients with old pelvic fractures were treated with internal fixation with reconstruction plates. There were 10 males and 14 females, with an average age of 42 years (ranged, 20 to 62 years). The time from injury to operation was from 23 to 64 days with an average of 35 days. X-rays and CT scanning were performed in all patients. According to classification of Tile, Tile C was in 11 cases and Tile B was in 13 cases.

RESULTSEighteen patients were followed up for 6 to 48 months with an average of 24 months. According to Majeed criteria, 9 cases obtained excellent results, 5 good, 4 fair, with average score of (84.4 +/- 11.5).

CONCLUSIONPositively operative treatment, exactly preoperative evaluation, correctly reduction and fixation can obtain satisfactory results in treating old pelvic fractures.

Adult ; Bone Plates ; Bone Screws ; Female ; Fracture Fixation, Internal ; Fractures, Bone ; surgery ; Humans ; Male ; Middle Aged ; Pelvic Bones ; injuries ; surgery ; Treatment Outcome ; Young Adult

Ex vivo expansion of hematopoietic progenitor cells (HPCs) is valuable for clinical application, however, traditional ex vivo culture negatively affects long-term hematopoietic reconstitution ability. In the hematopoietic system, the expression of Notch receptors and their ligands has been widely reported. Active Notch signal inhibits the differentiation of HSCs while promotes their expansion, suggesting that ex vivo expansion of hematopoietic progenitor cells could be enhanced by manipulating Notch signal pathways. In this article the Notch signal pathways, Notch signal and maintenance of hematopoietic progenitor cells, Notch signal and expansion of hematopoietic progenitor cells and molecular mechanism of Notch signal maintaining undifferentiation of hematopoietic progenitor cells were reviewed.
Animals ; Hematopoietic Stem Cells ; cytology ; metabolism ; Humans ; Receptors, Notch ; metabolism ; Signal Transduction

BACKGROUNDThe Taq/B, Msp/ and I405V polymorphisms of cholesteryl ester transfer protein (CETP), an important regulatory factor of lipid metabolism, have been attracted much more attention by the researchers. In this study, we investigated the associations between these 3 polymorphisms of CETP gene and variations in plasma lipid and lipoprotein levels in patients with coronary heart disease (CHD).

METHODSGenomic DNA was extracted from leukocytes of 203 CHD patients and 100 control subjects using the salting out method. Genotyping of the CETP gene was performed using polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP) techniques. Statistical analysis was conducted using the SPSS 10.0 software package.

RESULTSThe distribution of allele and genotype frequencies of the Taq/B, MspI, and I405V polymorphisms was similar in the CHD patient group and the control group. The B1B1 genotype of the Taq/B polymorphism was associated with significantly higher TC (P=0.039) and LDL-C (P=0.044) levels than the B2B2 genotype in CHD patients, and with significantly higher LDL-C (P=0.034) levels than the B2B2 genotype in controls. Homozygotes of the I405V polymorphism exhibited significantly higher HDL-C levels than VV homozygotes among control subjects (P=0.023). In male CHD patients with unambiguously assigned haplotypes, B2-M2-V/B2-M2-I patients demonstrated significantly higher HDL-C concentrations than B1-M2-V/B1-M2-I (P=0.023) and B1-M2-V/B1-M2-V patients (P=0.047).

CONCLUSIONSGenetic variations in the CETP gene may account for a significant proportion of the differences in plasma lipid and lipoprotein concentrations among the general population. The B1B1 genotype of the Taq/B polymorphism is probably a genetic risk factor for CHD in the study population.

Adult ; Aged ; Carrier Proteins ; genetics ; Cholesterol Ester Transfer Proteins ; Cholesterol, HDL ; blood ; Cholesterol, LDL ; blood ; Coronary Disease ; blood ; genetics ; Female ; Gene Frequency ; Glycoproteins ; genetics ; Humans ; Lipids ; blood ; Male ; Middle Aged ; Polymorphism, Genetic

To explore the protective effect of Angelica sinensis polysaccharides(ASP) on subacute renal damages induced by D-galactose in mice and its mechanism. Male C57BL/6J mice were randomly divided into 3 groups, with 10 mice in each group. The D-galactose model group was subcutaneously injected with D-galactose (120 mg x kg(-1)), qd x 42; the ASP + D-galactose model group was intraperitoneally injected with ASP since the 8th day of the replication of the D-galactose model, qd x 35; and the normal control group was subcutaneously injected with saline at the same dose and time. On the 2nd day of after the injection, the peripheral blood was collected to measure the content of BUN, Crea, UA, Cys-C; paraffin sections were made to observe the renal histomorphology by HE staining; senescence-associated β-g-alactosidase (SA-β-Gal) stain was used to observe the relative optical density (ROD) in renal tissues; transmission electron microscopy was assayed to observe the renal ultrastructure; the renal tissue homogenate was prepared to measure the content of SOD, GSH-PX, MDA; the content of AGEs and 8-OH-dG were measured by ELISA. According to the result, compared with the D-galactose model group, the ASP + D-galactose model group showed obviously decreases in the content of BUN, Crea, UA, Cysc, AGES, 8-OH-dG, the number of hardening renal corpuscle, renal capsular space and renal tubular lumen, ROD of SA-β-Gal staining positive kidney cells, mesangial cells, basement membrane thickness, podocyte secondary processes fusion and MDA and increases in the number of normal renal corpuscle, ribosome and rough endoplasmic reticulum in podocytes, the activity of SOD and GSH-PX. In Conclusion, A. sinensis polysaccharides can antagonize kidney subacute damages induced by D-galactose in mice. Its protective mechanism may be correlated with the inhibition of the oxidative stress injury.
Angelica sinensis ; chemistry ; Animals ; Deoxyguanosine ; analogs & derivatives ; metabolism ; Drugs, Chinese Herbal ; administration & dosage ; Galactose ; adverse effects ; Humans ; Kidney ; anatomy & histology ; drug effects ; injuries ; Kidney Diseases ; chemically induced ; drug therapy ; metabolism ; prevention & control ; Male ; Mice ; Mice, Inbred C57BL ; Oxidative Stress ; drug effects ; Polysaccharides ; administration & dosage ; Protective Agents ; administration & dosage