ABSTRACT:Objective To study the BDNF/TrkB signaling pathway in the epilepsy model of hippocampal neurons and the regulatory effect of on it.Methods The primary hippocampal neurons cultured in vitro for 7 days were randomly divided into seven groups:control group,epilepsy group,control+BDNF group,epilepsy+BDNF group,control + miR-185 ? group,epilepsy + miR-185 ? group,and epilepsy + miR-185 ? + BDNF group.We constructed miR-185 ? lentivirus vector and observed the changes of BDNF/TrkB pathway expression after transfaction of miR-185 ? by immunohistochemistry,patch clamp technique and Western blot technique.Results Compared with the control+BDNF group,the phosphorylated TrkB (pTrkB)/TrkB value was significantly lower in epilepsy+BDNF group (P < 0.05 )and control group (P < 0.001 ).Compared with the epilepsy group,the phosphorylated TrkB (pTrkB)/TrkB value was significantly higher in epilepsy+BDNF group (P <0.05).Compared with the epilepsy+miR-185 ? +BDNF group,the phosphorylated TrkB (pTrkB)/TrkB value was significantly lower in epilepsy + BDNF group and epilepsy + miR-185 ? group (P < 0.001 ).BDNF could promote the signaling conduction and miR-185 ? could remove the inhibition of BDNF/TrkB signaling.Conclusion BDNF can activate the BDNF/TrkB signaling pathway and transfection with miR-185 ? can relieve the inhibition of BDNF/TrkB signaling pathway of epileptic state by up-regulating the expression of TrkB.

There is a new research model named 'registry study/patient registry' in Western medicine, which could be referred to by Chinese medicine researchers, such as active safety surveillance. This article will introduce registry study from different aspects as the developing history, features, and application in order to inform Chinese medicine researchers of future studies.
Marketing ; Medicine, Chinese Traditional ; adverse effects ; economics ; Phytotherapy ; adverse effects ; economics ; Registries ; Safety Management ; methods

Objective To investigate the effect of CD34+ stem cells seeded stent graft in venous system. Method Twelve mongrel dogs were randomized into 2 groups. Stent grafts covered with PTFE or Dacron were implanted into infrarenal vena cava through a delivery system. In each group, 4 stent grafts were seeded by autogenous bone marrow CD34+ cells, and 2 treated by autogenous blood only as control. The grafts were explanted at 2 weeks. Light and electron microscopy were used to examine endothelialization of neointima. CD34 and Ⅷ factor stain were applied to identify endothelial cells. Results All stent grafts were patent except for one Dacron stent without seeding. Light, electron microscopy, CD34 and Ⅷ factor stain demonstrated that confluent endothelial cells appeared on the neointima of seeded grafts. No endothelial cells were detected in the non-seeding grafts. Conclusions Rapid endothelialization of stent grafts can be achieved through bone marrow CD34+ cells seeding in venous systems.

Objective To investigate the effect of radiofrequency ablation (RFA) in treating unresectable liver caneer. Methods 43 patients(78 lesions) who suffered from unresectable liver cancer were treated with cool-tip RFA from May 2006 to November,2008 in our hospital. 26 cases were treated with RFA in laparotomy besides with reseet of lesion in 6 eases and with alinjection in 5 cases,while 17 eases were treated only with percutaneous RFA. Results All patients were diagnosed by CT and B-ultrasound or MRI,among whom 18 cases were confirmed with primary hepatic carcinoma, 12 eases experienced recurrence following resect of primary hepatic carcinoma and 13 eases developed metastatic carcinoma;Every patient was followed up with AFP, abdominal B-ultrasound, CT scans or MRI from 1 to 28 months after treatment (mean 13.6 months). Before procedure, AFP increased in 20 eases which recovered within 3 months of treatment. 2 cases were suspected having residual on CT scan ,6 cases were found with new masses on liver on CT scan, 1 case complicated with gastrointestinal fistula and then died of systemie metas-tasis 3 months later,1 ease died of postoperative bleeding and 1 died of bleeding and infection after reseet + RFA treatment,and 3 cases died of multi-metastasis during following up who survived on average of 6 months. Conclu-sions B-ultrasound -guided cool-tip circulation RFA is an effective and safe method in treating unresectable liver cancer.

Antipsychotic Agents ; poisoning ; Clozapine ; blood ; poisoning ; Exchange Transfusion, Whole Blood ; methods ; Humans ; Infant, Newborn ; Male ; Treatment Outcome

To refine and analyze the characteristics and laws of acupoint selection in treatment of hyperlipidemia with acupuncture and moxibustion. By retrieving the main databases of Chinese and English version, the clinical research literature is included on the definite acupoints for hyperlipidemia treated with acupuncture and moxibustion, and the characteristics and laws are analyzed on the acupoint selection for hyperlipidemia treated with acupuncture and moxibustion. It is found out that the special points have been mainly used in treatment of hyperlipidemia. The first five top acupoints of high frequency use include Fenglong (ST 40), Zusanli (ST 36), Sanyinjiao (SP 6), Neiguan (PC 6) and Tianshu (ST 25). Totally 10 meridians are involved in acupoint prescriptions. The meridians of higher frequency use include the Stomach Meridian, the Spleen Meridian, the Conception Vessel, the Bladder Meridian and the Pericardium Meridian. The specific points are mainly from the Stomach Meridian, the Spleen Meridian, the Conception Vessel, the Bladder Meridian and the Pericardium Meridian in the treatment of hyperlipidemia. The acupoint prescription of acupuncture and moxibustion for hyperlipidemia is characterized as determining the treating principle based on the spleen theory, selecting the acupoints along the running courses of the spleen and stomach meridians, combining the nearby acupoints with the distal ones, selecting the acupoints for adjusting the deficiency and excess of zangfu and syndrome differentiation, collaborating the acupoints located in the front and on the back, as well as supplementing the acupoints based on symptoms.
Acupuncture Points ; Acupuncture Therapy ; Humans ; Hyperlipidemias ; therapy ; Moxibustion

Objective To investigate the potential relationship between initial 131Ⅰ uptake by lung metastases from differentiated thyroid cancer (DTC) and treatment outcomes. Methods From 1997 to 2009, 41 patients with DTC lung metastases were treated in the authors' department. 131Ⅰ whole body scan (WBS), serum Tg levels and other imaging results were analyzed to evaluate the therapeutic effects. Complete response (CR) or partial response (PR) was considered to be effective. The x2 test and correlation analysis were performed using SPSS 11.5 software package. Results 131 Ⅰ treatment was effective in 63% (26/41) patients with DTC lung metastases, CR in 8 patients and PR in 18 patients. In other 37% ( 15/41 ) patients, 131Ⅰ treatment was ineffective, including one case died of distant metastases. Patients with initial presence of 131Ⅰ lung uptake had higher effective rate than those with 131Ⅰ lung uptake during the second or later 131Ⅰ treatment (76% (22/29)vs33% (4/12),x2 =4.911, P=0.027). Also, significantly higher effective rate was found in patients with lung metastases alone than those with extra-pulmonary metastases (75% (24/32) vs 22% (2/9), x2 = 6. 312, P =0.012). However, the effective rate in patients with diffuse metastases was not significantly different from that in patients with focal metastases (67% (12/18)vs 61% ( 14/23), x2 =0. 146, P=0.702). The positive rate of initial 131Ⅰ uptake by lung metastases was higher in patients with total thyroidectomy than those with partial thyroidectomy (83% (24/29) vs 42% (5/12) ). Those positive rates in patients with papilary DTC and patients with follicular DTC were 72% (23/32) and 6/9, respectively. The surgical mode was correlated with the initial 131Ⅰ uptake by lung metastases (r = 0.411, P ＜ 0.05), but no correlation was found between the histological type and the initial 131Ⅰ uptake by lung metastases ( r = 0. 047, P ＞ 0.05 ). Conclusion Initial uptake of 131 Ⅰ by lung metastases alone is a favorable prognostic factor for DTC patients treated by131Ⅰ, and total thyroidectomy may be beneficial for initial 131Ⅰ uptake by lung metastases.

Objective To investigate the characteristics of fractional anisotropy (FA) and apparent diffusion coefficient (ADC) of association fiber tracts in patients with amnestic mild cognitive impairment (aMCI), and to assess the application value of diffusion tensor imaging (DTI) in differential diagnosis of aMCI and AD. Methods DTI were performed in 20 patients of aMCI (aMCI group), 20 patients of AD (AD group) and 20 normal control subjects (control group). FA and ADC values were calculated in the regions of interest (ROI) in inferior fronto-occipital fasciculus (IFOF), genu and splenium of corpus callosum, superior longitudinal fasciclesⅡ (SLFⅡ) and cingulated bundles. Results There was significant difference of FA values in inferior fronto-occipital fasciculus and cingulate bundles between aMCI group compared with control group (P<0.05), as well as of FA values in cingulate bundles between aMCI group and AD group (P<0.05). Conclusion Abnormal FA values in inferior fronto-occipital fasciculus and cingulate bundles suggest that DTI can be used as a diagnosis index of aMCI. Furthermore, it is helpful in the differential diagnosis of aMCI and AD.

Transgenic cell lines of loblolly pine (Pinus taeda L.) were analyzed by a compact laser-tweezers-Raman-spectroscopy (LTRS) system in this investigation. A low power diode laser at 785 nm was used for both laser optical trapping of single transgenic cells and excitation for near-infrared Raman spectroscopy of the nuclei of synchronized cells, which were treated as single organic particles, at the S-phase of the cell cycle. Transgenic living cells with gfp and uidA genes were used as biological samples to test this LTRS technique. As expected, different Raman spectra were observed from the tested biological samples. This technique provides a high sensitivity and enables real-time spectroscopic measurements of transgenic cell lines. It could be a valuable tool for the study of the fundamental cell and molecular biological process by trapping single nucleus and by providing a wealth of molecular information about the nuclei of cells.

AIM: To investigate the ocular complication after radiation therapy for nasopharyngeal carcinoma(NPC).METHODS: The authors performed a previous study on keratopathy in 213 NPC patients who received first stage radiation and had at least 10 months of follow-up. These patients were categorized into three groups depending on NPC clinic stages. Rates and proportions of keratopathy occurring in these groups were compared and analyzed with Chi-square Test and Spearman rank correlation coefficient.RESULTS: Radiation keratopathy developed in 19 patients, about 8.9% (19/213). The latency value was 3 to 30days. The effect of NPC clinic stages and radiation did on the development of keratopathy was not statistically significant (P＞0.05).CONCLUSION: The NPC clinic stages and radiation doses plays few effects on the development of keratopathy. It may play a key role that corneal nerves damage induced ocular surface diseases. It can not be excluded that individuals have different sensitivities to radiation.