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.

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.

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.

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

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

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

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

Objective To evaluate the effects of different dosages of rocuronium on abdominal wound closure under general anesthesia.Methods Ninety ASA class I or II patients scheduled for elective abdominal surgery under general anesthesia were randomized into three groups with 30 cases each.Each group received rocuronium 1 time of ED95 (0.3 mg/kg),0.5 time of ED95 (0.15 mg/kg),0.2 time of ED95 (0.06 mg/kg) respectively when closing the abdominal wall.TOF recovered to 25%, 75%, 90%, time of eye-opening on command, time of head-lift for more than 5 seconds,extubation time, the rate of upper airways obstruction after extubation and the satisfaction score for the muscle relaxation to general surgeons were recorded.Results TOF values had no significantly different among the three groups before abdominal wound closure (P＞0.05).Compared with group A and group B,time of TOF in group C was significangtly increased after administration of rocuronium (P＜0.05) . Time of TOF recovery to 25%, 75%, 90%in group C were significangtly decreased (P＜0.01).Compared with group A and group B, time of eye-opening on command ,head-lift for more than 5 seconds and extubation time were significantly shorter in group C.There were 8,4,0 patients undwent upper airways obstruction among each group respectively after extubation (P＜0.05).The satisfaction score for muscle relaxation among three groups had no significant difference.Conclusion An additional administration of 0.2 time of ED95 (0.06 mg/kg) rocuronium before abdominal wound closure in abdominal surgery can achieve satisfactory muscle relaxation for surgeons.

Huperzine A is a potent,reversible,and blood-brain barrier permeable acetylcholinesterase irhibitor.The aim of this study was to compare the pharmacokinetics,tolerability,and bioavailability of two formulations with the established reference formulation of huperzine A in a fasting,healthy Chinese male population.This was a randomized,single-dose,3-period,6-sequence crossover study.The plasma concentrations of huperzine A were determined by liquid chromatography tandem mass spectrometry.Tolerability was assessed based on subject interview,vital sign monitoring,physical examination,and routine blood and urine tests.The mean (SD) pharmacokinetic parameters of the reference drug were Cmax,1.550 (0.528) ng/mL;t1/2,12.092 (1.898) h;AUC0-72h,17.550 (3.794) ng.h/mL.Those of the test formulation A and test formulation B were Cmax,1.412 (0.467),1.521 (0.608) ng/mL;t1/2,12.073 (2.068),12.271 (1.678) h;AUC0-72h,15.286 (3.434) ng.h/mL,15.673 (3.586) ng.h/mL.The 90％ confidence intervals for the AUC0-72h and Cmax were between 0.80 and 1.25.No adverse events were reported by the subjects or found with results of clinical laboratory test.The test and reference products met the regulatory criteria for bioequivalence in these fasting,healthy Chinese male volunteers.All three formulations appeared to be well tolerated.