ObjectiveTo investigate the disruption of blood-brain barrier (BBB) after brain trauma in rats using IgG immunohistochemical staining.MethodsAn impact-acceleration head injury model was established with rats. Histological changes of rats' brains were observed by HE staining and light and electron microscopes at 1 h, 6 h, 24 h and 7 d after injury, and BBB permeability was analyzed semi-quantitatively by IgG immunohistochemical staining at the same time points.ResultsThe spot bleeding and brain edema was present in the damage region after brain trauma and endothelial cell damage and astrocyte swelling could be found under electron microscope. The extravasations of IgG was detected in the injured hemisphere of rats at 1 h, and achieved the peak at 6 h, remained a high level up to 24 h, and decreased at 7th d.ConclusionThe disruption of BBB function occurs after brain trauma in rats, and detection of IgG extravasations tested by immunohistochemical staining is a simple and sensitive way to investigate BBB permeability.

Objective To investigate the application of tissue microarray (TMA) technique in human brain gliomas. Methods The TMAs containing 50 glioma specimens of all pathological grades were constructed. The immunohistochemistry and in situ hybridization techniques were used to detect the expressions of Ki-67, mutant P53 protein and wild-type p53 mRNA. Results The expression of Ki-67 was significantly associated with the pathological grades (P<0.05). There was significant correlation between the expression of mutant P53 protein and wild-type p53 mRNA (P<0.001), as well as p53 mutation and Ki-67 (P<0.05). Conclusion It's feasible and valuable to utilize TMA technique in research on human brain gliomas.

Objective To comparative analysze of the applications value of breast-conserving surgery and improved surgical in breast cancer patients.Methods One hundred and sixty-eight female breast cancer patients from February 2005 to October 2010 in the People's Hospital of Rizhaoour hospital were selected.The patients were divided into breast-conserving surgery group (n =80) and improved surgical group (n =88).The patients in two groups were followed-up and investigated for three years.Operative time,blood loss,postoperative drainage,postoperative drainage time and hospital stay,incidence of complications,local recurrence,distant metastasis and survival after 3 year,satisfaction ratio of breast cosmetology,psychological anxiety scores and quality of life scores after 3 years of the patients in two groups were compared and analyzed.Results The complication rate of breast-conserving surgery group was 12.50％ (10/80),lower than the improved surgical group,and the difference was significant statistically (29.55％ (26/88),x2 =7.23,P＜0.05).The operative time ((72.68±5.28) min),blood loss ((39.21 ± 8.59) ml),postoperative drainage ((162.25 ± 28.56) ml),postoperative drainage time((8.16±2.58) d) and the length of hospital stay((11.43±1.98) d) of the patients in breast-conserving surgery group were lower than those of the improved surgical group,and the differences of two groups were significant statistically ((92.48 ± 6.01) min,(68.26 ± 10.23) ml,(343.29 ± 62.18) ml,(16.59±4.96) d,(18.47±2.94) d;t =22.72,19.99,24.61,13.99,18.35;P＜0.05).The satisfaction rate after 3 years of breast-conserving surgery group was 92.50％(74/80),higher than that of the improved surgical group,and the difference was significant statistically (81.82％ (72/88),x2 =4.20,P＜ 0.05).The psychological anxiety scores after 2 and 3 years of breast-conserving surgery group were (40.02 ± 2.63) points and (34.26 ± 3.59) points,lower than those of improved surgical group((42.58±2.37) points and (39.85±2.10) points),the quality of life scores after 3 years of breast-conserving surgery group was (67.58± 11.26)points,higher than that of improved surgical group ((50.85 ± 10.42) points),and the differences were significant statistically (t =6.60,12.16,9.96;P ＜ 0.05).Conclusion Breast-conserving surgery could reduce the incidence of complications and psychological anxiety situations,improve clinically relevant indicators and satisfaction ratio of breast cosmetology and quality of life for the breast cancer patients.

Objective To analyze the clinical characteristics of glenoid labral tear combined with rotator cuff tear so as to provide references for arthroscopic surgery.Methods A total of 50 patients (28 males and 22 females)at mean age of 45 years old(ranged from 30 to 58 years)were enrolled in the study.Clinical data including the mechanism and time of injury,symptoms,results of physical examination,X-ray and MRI were collected.Location and degree of rotator cuff and glenoid labral tears found during arthroscopic surgery were also recorded.There were 37 patients with anterior labral tears,eight with superior labrum tears and five with posterior labral tears.The rotator cuff tear was slight in 36 patients,moderate in 10 and severe in three.One patient had extra-large tear.Anterior part of rotator cuff was found torn in 21 patients,middle part in 16 and posterior part in 13.MRI of glenoid labral tears manifested disappearance of triangular appearance and enlarged joint capsule.MRI manifestations of rotator cuff tear were high signal in torn part and continuity loss.Results All patients were followed up for average 36 months(6-72 months),which showed satisfactory results.UCLA score was(15±3)points preoperatively and(32±3)points postoperatively(P＜0.01).Conclusions More attention should be paid to glenoid labral tear to avoid misdiagnosis and delayed treatment,for it is usually combined with rotator cuff tear.Location of rotator cuff tear has some relation to the range of glenoid labral tear,ie,the larger range of glenoid labral tear may induce more posterior part of rotator cuff torn.

Objective To assess clinical outcomes of FasT-Fix technique in repair of meniscal injury under arthroscope. Methods A total of 36 cases (37 knees) of mensical tears were repaired with FasF-Fix technique. There were 26 males and 10 females, at mean age of 26 years (14-51 years). Eighteen meniscal tears were located in zone Ⅱ, 16 in zone Ⅲ and 3 in zone Ⅳ. The average length of the tear was 2.2 cm (1.0-3.0 cm). Results There were no any signs of early complications after sur gery. All cases were followed up For 6-26 months (mean 16 months). According to Lysholm scoring scale system ,the average score of operated knees was increased from preoperative 44.13+12.56 to postopera tive 80.24+12.67 (P<0.01). After operation, all the patients could move the knee joint at normal range, except for one case who had a limitation of 20 degree flexion, with no pain or interlocking symptom. All cases returned to original work and/or could continue sports game. Conclusion The FasT-Fix technique is a simple, safe and effective method for repair of properly selected meniscal tears.

OBJECTIVETo study features of brain gray matter injury in cerebral infarction patients and intervention of scalp acupuncture by using voxel-based morphology.

METHODSA total of 16 cerebral infarction patients were recruited in this study, and assigned to the scalp acupuncture group and the control group, 8 in each group. Another 16 healthy volunteers were recruited as a normal group. All patients received scanning of T1 structure. Images were managed using VBM8 Software package. Difference of the gray matter structure was compared among the scalp acupuncture group, the control group, and the healthy volunteers.

RESULTSCompared with healthy volunteers, gray matter injury of cerebral infarction patients mainly occurred in 14 brain regions such as cingulate gyrus, precuneus, cuneus, anterior central gyrus, insular lobe, and so on. They were mainly distributed in affected side. Two weeks after treatment when compared with healthy volunteers, gray matter injury of cerebral infarction patients in the scalp acupuncture group still existed in 8 brain regions such as bilateral lingual gyrus, posterior cingulate gyrus, left cuneus, right precuneus, and so on. New gray matter injury occurred in lingual gyrus and posterior cingulate gyrus. Two weeks after treatment when compared with healthy volunteers, gray matter injury of cerebral infarction patients in the control group existed in 23 brain regions: bilateral anterior cingulum, caudate nucleus, cuneate lobe, insular lobe, inferior frontal gyrus, medial frontal gyrus, precuneus, paracentral lobule, superior temporal gyrus, middle temporal gyrus, lingual gyrus, right postcentral gyrus, posterior cingulate gyrus, precentral gyrus, middle frontal gyrus, and so on. New gray matter injury still existed in 9 cerebral regions such as lingual gyrus, posterior cingulate gyrus, postcentral gyrus, and so on.

CONCLUSIONSBrain gray matter structure is widely injured after cerebral infarction. Brain gray matter volume gradually decreased as time went by. Combined use of scalp acupuncture might inhibit the progression of gray matter injury more effectively.

Acupuncture Therapy ; Brain ; physiopathology ; Brain Injuries ; therapy ; Cerebral Infarction ; therapy ; Gray Matter ; pathology ; Humans ; Magnetic Resonance Imaging ; Scalp ; Stroke ; therapy

Objective Currently,pediatric 18F-FDG dose and acquisition durations are generally based on coarse extrapolation from adult guidelines.This study sought to determine whether shorter acquisition durations or a lower 18F-FDG injected activity could be used during pediatric 18F-FDG PET/CT examinations while maintaining diagnostic utility.Methods Thirty-six whole-body 18F-FDG PET/CT examinations were performed on 36 patients (weight,13-89 kg,(46.51±5.63) kg; age range,3-14 years old,(9.22±3.16) years old) with a weight-based injected activity (5.3 MBq/kg (0.144 mCi/kg)),fixed acquisition durations 180 S/FOV,VIP record acquisition mode using Discovery STE.For each examination,the Vip-mode data was truncated to form multiple datasets with shorter acquisition durations down to a minimum of 60 s/FOV (i.e.,60,80,100,120,140,160 s/FOV data were formed from single 180 s/FOV acquisition).168 image volumes were generated,randomized,and reviewed in a masked manner with corresponding CT image volumes by 6 radiologists.Overall,subjective adequacy and objective lesion detection accuracy by body region were evaluated.Results All examinations with maximum acquisition duration were graded as adequate and were used as the reference standard for detection accuracy.For patients more than 30 kg,when acquisition duration was more than 120 s/FOV,all PET/CT examinations were graded as adequate for clinical tasks,whereas,when acquisition duration was reduced to less than 120 s/FOV,lesion detection became less accurate.For patients less than 30 kg,lesion detection accuracy was perfect for acquisition times between 140 s/FOV and 180 s/FOV for all regions of the body.However,lesion detection became less accurate when imaging acquisition time was reduced less than 140 s/FOV.Conclusions When GE Discovery STE PET/CT was applied during pediatric PET/CT examination,using decreased acquisition times as a surrogate for 18F-FDG dose,18F-FDG dose can be reduced by approximately 33.33％ when patients weigh over 30 kg were scanned for 180 s/FOV.For patients less than 30 kg,18F-FDG dose can be reduced by approximately 22.22％ without losing diagnostic quality.Reduction of overall scan time potentially reduces motion artifacts,improves patient comfort,and decreases length of sedation.Alternatively,decreased 18F-FDG dose minimizes radiation risk.

OBJECTIVETo observe the clinical effect and safety of blood activating stasis removing method (BASRM) on intracerebral hemorrhage patients.

METHODSA multi-center, prospective, randomized, open, controlled and blinded endpoint design was adopted. Totally 228 intracerebral hemorrhage patients were assigned to the treatment group and the control group, 114 in each group by center randomized method. All patients received basic treatment of Western internal medicine. Patients in the treatment group received intravenous infusion with Xingnaojing Injection (XI) from the 1st day of grouping, 20 mL per day for 14 days. Then they took or were nasally fed with Chinese medical granules (by syndrome typing as complicated with wind syndrome, fire syndrome, and phlegm syndrome) for 21 days. Finally they took Naoxueshu Oral Liquid (NOL), 10 mL each time, 3 times per day till the 3rd month of incidence. Patients' disability degree, activities of daily living, neurological impairment, the effective rate, physiologic functions, mental status, social relationship, and degree of treatment satisfaction were assessed using Modified Rankin Scale (MRS), Barthel index (BI), National Institute of Health Stroke Scale (NIHSS), and patient reported outcome (PRO). Head CT was performed to evaluate the absorption of hematoma at the 1st and 7th day of grouping. The safety was also assessed.

RESULTSTotally 108 patients in the treatment group and 112 patients in the control group completed the trial. There was no statistical difference in the total effective rate between the two groups after 3 months of treatment (P>0.05). The MRS score was obviously lower in the treatment group than in the control group (P<0.01) at month 3 after attack (P<0.01). There was statistical difference in the difference between pre-post hematoma volume between the two groups after 7-day treatment (P<0.05). The NIHSS score of two groups at the 7th, 14th, 21st day, and 3rd month decreased significantly (P<0.05). Compared with the control group, the decremenit of NIHSS score decreased more obviously in the treatment group at day 7, 21, and 3rd month (P<0.05). Compared with the control group, the BI increased (P<0.01); physiologic fupctions, social relationship, treatment satisfaction and total score in PRO scale were all lower in the treatment group than in the control group (P<0.05, P<0.01). The incidence of adverse events occurred in 7 cases (6.14%) in the treatment group and 5 cases (4.39%) in the control group, with no statistical difference (P>0.05).

CONCLUSIONBASRM could lower the deformity rate of intracerebral hemorrhage patients at month 3, effectively promote hematoma absorption within 7 days, improve neurologic impairment, and elevate living abilities at month 3 of onset.

Activities of Daily Living ; Cerebral Hemorrhage ; therapy ; Hematoma ; Humans ; Medicine, Chinese Traditional ; Prognosis ; Prospective Studies ; Syndrome

Objective To describe the clinical, neuroimaging and genetic profiles of amyotrophic lateral sclerosis with frontotemporal lobe degeneration ( ALS-FTLD).Methods From August 2011 to May 2015, patients with FTLD or other types of neurodegenerative dementia were physically examined in detail and electromyography was performed to those with suspected dysarthria, limb atrophy or weakness.Cognitive and behavioral screenings were performed to all ALS patients.Patients with ALS-FTLD entered further analysis of neuroimaging and genetics.Results Among the 8 patients diagnosed as ALS-FTLD, 4 patients began with personality change or amnesia, while diseases in the remaining 4 cases began with limb weakness or dysarthria.Dementia type of 7 cases was behavioral variant FTLD ( bvFTD) and 1 case was diagnosed as semantic dementia.Electromyography of all the 8 patients showed diffuse neurogenic changes.Constructional neuroimaging of 6 patients showed cerebral atrophy predominantly in frontal and temporal lobes.Fluorodeoxyglucose-positron emission tomography was conducted in 5 patients, indicating hypometabolism mainly in frontal and ( or) temporal lobes.NeuroQ analysis revealed that bilateral frontal lobes were the most hypometabolic areas for ALS-FTLD.Among 4 patients who underwent genetic screening, 1 patient was C9ORF72 mutation carrier.Conclusions bvFTD is the major type of dementia in the context of ALS.Metabolic neuroimaging could assist accurate diagnosis, and it reveals that bilateral frontal lobes are the most hypometabolic areas for ALS-FTLD.C9ORF72 gene mutation is an important pathogenic mutation for ALS-FTLD, although it is rare in Chinese population.

OBJECTIVETo study the effects of extremely low frequency sinusoidal magnetic fields on hydrolysis of F(0)F(1)-ATPase and its mechanism.

METHODSThe F(0)F(1)-ATPases which was localized on the outer surface of chromatophores were prepared from the cells of Rhodospirillum rubrum and were exposed to 0.1 approximately 0.5 mT, 4.7 approximately 96.0 Hz magnetic fields.

RESULTSThe hydrolysis activity of F(0)F(1)-ATPase was stimulated by 0.5 mT, 4.7, 12.0, 60.0, 72.0, 84.0 and 96.0 Hz magnetic fields respectively and inhibited by 0.5 mT, 24.0 Hz magnetic field (P < 0.05); 0.3 mT, 4.7, 24.0 and 60.0 Hz magnetic fields also distinctly affected F(0)F(1)-ATPases activity respectively (P < 0.05), whereas 0.1 mT exposure caused no significant changes on that activity. When the hydrolysis activity of the F(0)F(1)-ATPases was inactivated by its inhibitor DCCD, the 0.5 mT, 24.0 Hz magnetic field still inhibited the hydrolysis activity of the F(0)F(1)-ATPase and 0.5 mT, 60.0 Hz magnetic field also had stimulating effects (P < 0.05).

CONCLUSIONThe effects of magnetic fields on the hydrolysis activity of the F(0)F(1)-ATPases depend on not only magnetic frequency but also magnetic intensity. The threshold of magnetic intensity is between 0.1 mT and 0.3 mT. F(0)F(1)-ATPases, especially F1-portion may be an end-point of magnetic fields.

Hydrolysis ; radiation effects ; Magnetic Fields ; adverse effects ; Proton-Translocating ATPases ; metabolism ; Rhodospirillum rubrum ; enzymology