Objective To study the curative effect of internal thoracic arterial chemoembolization in the treatment of advanced lung cancer.Methods Internal thoracic artery was confirmed to be the main supplied artery by digital substraction angiography(DSA) in 8 cases with lung cancer. The internal thoracic artery was embolized by stainless steel coil below the supplied segment in order to avoid the normal vascular territory occlusion.Then iodized oil combined with Cis-Diaminedichloroplatinum(DDP) and mitomycin(MMC) were injected into the supplied segment slowly until blood flow stopped,at last,the gelfoam sponge sheet was inserted into this supplied segment to decrease the wash of iodized oil by blood flow.Results Clinical symptoms were improved obviously in all cases after therapy.CT scans showed that iodized oil accumulated in the tumor better four weeks after the chemoembolization. Conclusion For these cases with advanced lung cancer which the blood supply mainly by internal thoracic artery,it is necessary to perform chemoembolization.

Objective To assess the cli ni cal usefulness of dual-modality positron emission tomographic (PET)-computed t omographic (CT) imaging in pulmonary lesions. Methods Fo rty-nine patients with pulmonary lesions examined with ?~2 test. Results There were 50 primary lesions in 49 patients. Accuracy, sensitivity, specificity, positive predictive value (PPV), and negative predict ive value (NPV) were 90.0%, 95.2%, 62.5%, 93.0%, and 71.4%, respectively wi th PET-CT, 74.0%, 76.2%, 62.5%, 91.4%, and 33.3%, respectively with CT. There was significant differences between them (P0.05). Conclusion PET-C T has an important clinical value in differentiating benign lesion from malignan cy and staging in lung cancer.

Objective To assess the diagnostic value of determining infarct core and penumbra using CT perfusion source images (CTP-SI) mismatch model in hemispheric stroke less than 9 hours.Methods "one-stop shop" CT examination including non-contrast enhanced CT (NCCT), CTP, CT angiography (CTA) were performed in 24 patients with symptoms of stroke less than 9 hours.The Alberta Stroke Program Early CT Score (ASPECTS) were analyzed on arterial phase CTP-SI and venous phase CTP SI using Wilcoxon rank-sum test, then compared with the follow up imaging ASPECTS using multiple linear regression.Results The median (min-max) scores of ASPECTS on arterial phase CTP-SI, venous phase CTP-SI and follow-up imaging were 9.0 ( 2.0-10.0 ), 9.3 ( 6.5-10.0 ) and 9.0 ( 7.0-10.0 ),respectively. ASPECTS measured on arterial phase CTP-SI significantly differed from the ASPECTS on venous phase CTP-SI ( Z =-2.812, P = 0.005 ).Moreover, the linear regression analysis showed significant correlation between the ASPECTS on venous phase CTP-SI and follow up imaging ASPECTS ( Beta =0.715,P = 0.003 ).Conclusion CTP-SI mismatch model provides a method of choice in predicting penumbra and infarct core in hemispheric stroke.

This study was aimed to observe the effect ofRong-Shuan (RS) capsule on rodent tolerance against cerebral ischemia, hypoxia and cerebral reserve capacity, which was related to promote blood circulation and remove blood stasis. Acute cerebral ischemia and anoxia models were established by permanent left carotid artery ligation on C57 BL/6 mice and hypoxia inhalation (O2?N2 = 8?92) for 15 min. Duodenal administration of RS capsule at different doses (100, 200 or 400 mg·kg-1) or saline were given 10 min after ischemia onset. The local brain blood circulation changes and neurobehavioral function were evaluated 24 h after ischemia onset. SD rats were given RS capsule at different doses (75, 150, 300 mg·kg-1) or saline. The effect of RS capsule on improvement of microcirculation disturbance induced by high molecular dextran was observed. The results showed that compared with the sham operation group, the brain blood circulation in the model group was significantly decreased; the cerebral infarction area increased; and the behavioral score after cerebral hypoxia was significantly increased (P < 0.05, orP < 0.01). Meanwhile, after the injection of high molecular dextran among rats in the model group, the cerebral leptomeninx microcirculation was obviously slowed down at 3 timepoints, which were 10, 20 and 30 min. Compared with the model group, RS capsule (400 mg·kg-1) can significantly increase the local blood circulation in the brain of mice, improve behavioral disturbance, reduce cerebral ischemia area (P< 0.05, orP < 0.01). RS capsule can also improve blood flow velocity and flow pattern in cerebral leptomeninx microcirculation disturbance induced by high molecular dextran at different timepoints (P < 0.05, orP < 0.01). It was concluded that RS capsule can increase the tolerance against cerebral ischemia, hypoxia and cerebral reserve capacity in order to protect the neural tissues to promote neuronal recovery.

This study was aimed to observe behavioral changes of post-stroke depression (PSD) rats, and to assess effect ofJie-Du Tong-Luo(JDTL) capsule onqi-supplementing and depression-relieving. Microspheres were injected from external carotid artery of rats under anesthesia to prepare the multiple cerebral infarction. Aftermid long term feeding, PSD rat model was established. Then, open-field test (OFT), tail suspension test (TST), forced swimming test (FST) and glucose preference test were employed to study behavioral changes of rats. The results showed that rats suffered multiple cerebral infarction after mid long term feeding formed PSD, which were indicated by reduced food consume, slow body weight increasing, reduction of spontaneous movement and inquiry activity, prolonged accumulative immobility time in TST, FST and lowered glucose preference, compared with rats in the normal group. Compared with the model group, rats in the JDTL capsule group andBu-Chang Xin-Nao-Tonggroup showed larger body weight increase, higher scores in OFT, reduced immobility time in TST, FST, and elevated glucose preference. It was concluded that JDTL capsule had significant efficacy on rats’ body weight, behavior and glucose preference, which might be its pharmacological basis onqi-supplementing and depression-relieving.

This study was aimed to observe the body weight and behavioral changes of heart-spleen deficiency mouseandtoassesstheefficacyofLing-Qi-Jia (LQJ)oralsolutiononqi-supplementingandmind-tranquilizing. The heart-spleen deficiency syndrome mouse model was established by using loading swimming anddrugdaily.Thebodyweight,foodconsumption,intestinepropulsion,tailsuspensiontest (TST),forced swimmingtest (FST),sleepingtimeandtheamountofbrainneurotransmitterweredetected.Theresultsshowed that mouse suffered loading swimming and drug formed heart-spleen deficiency syndrome model, which were indicated by lowering body weight and food consumption, shortened time in FST, prolonged accumulative immobility time in TST, intestine propulsion hyperfunction, shortened sleeping time and lowering brain neurotransmitter amount. LQJ oral solution can obviously improve experiment indexes mentioned above. It was concluded that LQJ oral solution, which can improve insomnia due to heart-spleen deficiency, might had close relation to the efficacy of qi-supplementing and mind-tranquilizing. Meanwhile, changes of brain neurotransmitters might also be the material basis on its efficacy.

The rat model of multi-infarct was adopted in this study to elucidate the protective mechanism of Sailuotong capsule (Sailuotong) in recovery period of multiple cerebral infarction. The effects of Sailuotong on levels of Glu, GABA and the expression of NMDA receptor subtypes including NR1, NR2A and NR2B, were detected. The multi-infarct model rats were established by injecting embolizing microsphere via internal carotid artery, and were given Sailuotong treatment (16.5 and 33.0 mg x kg(-1)) for 60 days. The pathological changes in brain ultrastructure were observed by transmission electron microscope. The levels of Glu and GABA in brain tissue were measured with high performance liquid chromatography. The expression of NMDA receptors including NR1, NR2A and NR2B in neurons was evaluated by immunohistochemical staining. Compared with the sham rats, abnormal changes were observed in ultrastructures of neurons, neuroglia cells and synapses of model rat brains. Moreover, significant decrease of Glu and GABA, as well as the elevated expression of NR1, NR2A and NR2B were detected in brain tissues. Sailuotong (16.5 and 33.0 mg x kg(-1)) could improve ultrastructure of cerebral tissue, facilitate synthesis of Glu and GABA, and down-regulate expression of NR1, NR2A and NR2B in neurons. The results demonstrated that Sailuotong could exert neuroprotective effects to some extent in the recovery phase of multiple cerebral infarction by promoting expression of NMDA receptors and synthesis of Glu and GABA.

Objective To investigate the diagnostic value of CTP-SI in acute stroke less than 9 hours.Methods In present study."one-stop shop"CT examination were performed in 34 patients with symptoms of acute stroke in le88 than 9 hours.We divided patients into two groups according to with and without delayed perfusion on CTP-SI.and compared ASPECTS (Alberta Stroke Program Early CT Score Study)scores on non-contrast CT(NCCT),arterial phase CTP-SI,venous phase CTP-SI with follow-up imaging.The ASPECTS were analyzed on arterial phase CTP-SI and veIlous phase CTP-SI using Wilcoxon rank-sum test.then compared with the follow up imaging ASPECTS using multiple linear regression.Results The median(min-max)scores of ASPECTS on NCCT,arterial phase CTP-SI,venous phase CTP-SI and follow-up imaging were 9.0(6.0-10.0),6.5(1.0-8.0),8.0(3.0-10.0)and 7.0(0-10.0)in group with delayed perfusion,respectively,and 9.0(1.0-10.0),8.5(1.0-10.0),8.5(1.0-10.0)and 8.0 (0～10.0)in group without delayed perfusion respectively.ASPECTs scores measured on arterial phase CTP-SI did not differ from venous phase CTP-SI in group without delayed perfusion ( Z = - 1.00, P =0.317), while there was significant difference in group with delayed perfusion (Z = -3.08, P = 0.002 ).There were significant correlation with ASPECTS scores measured on NCCT, arterial phase CTP-SI and venous phase CTP-SI to follow-up imaging ASPECTS (r =0.899,0.926,0.928,P ＜0.01 ) in group without delayed perfusion; ASPECTS measured in venous phase CTP-SI showed the best correlation to follow-up imaging ASPECTS (r = 0.762, P = 0.004) in group with delayed perfusion.Multiple linear regression showed that the correlation in only venous phase CTP-SI with foUow-up imaging ASPECTS was statistically significant:in group without delayed perfusion, Beta = 0.966, P ＜ 0.001 ; in group with delayed perfusion,Beta = 0.765, P = 0.004. Conclusion Presence of delayed porfusion in CTP-SI is quite important in identifying ischemic penumbra, which plays a critical role in imaging-guided thrombolytie therapy.

Objective To evaluate the shear stiffness of brain by MR elastography (MRE) in healthy Chinese volunteers and to assess the association between the cerebral shear stiffness and age. Methods Brain MRE studies were performed on 105 healthy volunteers. The shear stiffness of brain parencham was measured by local frequency estimation (LFE) algorithm. The differences of the shear stiffness between white matter(WM) and grey matter(GM) were analyzed by independent sample t test; the differences of brain parenchyma shear stiffness between male and female were estimated by independent sample t test. Spearman test was used to analyze the correlation between age and the shear stiffness of parenchyma; the volunteers were divided into two groups (age ≤ 40 and age > 40) and the correlation between age and shear stiffness of parencbyma in each group were analyzed separately. Results The shear stiffness of whiter matter [(23.1±5.7) kPa] was higher than that of grey matter[(11.3±2.6) kPa], and the difference was significant (t = 19.34, P < 0.01). In male, the shear stiffness of WM and GM was (23.4±5.8) kPa and (11.4±2.8) kPa respectively; while in female, it was (22.8±5.6) kPa and (11.1±2.5) kPa respectively. No sex differences were found in the stiffness of white matter or gray matter (t = - 0.534, - 0.606, P > 0.05). An age-dependent trend was observed in the stiffness of grey matter(r =0.315, P < 0.01),while not in whiter matter (r = 0.183, P > 0.05). When the shear stiffness of subjects no more than 40 years old was analysed, the age-dependent trend of shear stiffness was found both in white matter and gray matter(r = 0.251,0.235, P < 0.05); While in subjects over 40 years old, the age-dependent rend of shear stiffness was not found in white matter or gray matter(r = 0.181, - 0.001, P > 0.05). Conclusions The shear stiffness of WM is significantly higher than that of GM. No obvious sex difference was found in the stiffness of brain parenchyma. The shear stiffness of GM increases with age; the age-related increase of shear stiffness of WM was only found in subjects under 40 years old.

time (r = 0. 070, -0.003, -0. 195,0. 177,P 0.05). Conclusions Compared with omnivore's, the shear stiffness of brain parenehyma was lower in vegetarians. The shear stiffness of brain parenchyma may be affected by the diet.