AIM: To explore the role of calcineurin i n th e expression of NF-?B and the neurotoxicity in cultured cortical neurons treate d with interleukin-1? (IL-1?) and NMDA. METHODS: The cultured rat cortical neurons were used in the expe riment, damage of neurons was induced by interleukin-1?(IL-1?) or excitator y amino acid (NMDA). The degree of neuron damage was examined with the methods o f MTT assay and LDH releasing rate assay, as well as the Annexin V and PI immuno fluorescence. The expression of NF-?B p65 on the neurons was tested by the West ern blot analysis. RESULTS: Viability of neurons was obviously lower in the IL-1? group and NMDA group respectively than that in control group (P0.05). Annexin V and PI immunofluoresc ence showed that IL-1? mainly induced the neuron apoptosis, and NMDA induced th e neuron necrosis. CONCLUSIONS: The calcineurin mediates the higher expression of N F -?B p65 and neuron damage induced by IL-1?, but not play a critical role in th e necrosis induced by NMDA in the cultured cortical neurons. These results indic ate that calcineurin is the key molecule in the apoptotic signaling pathway.

Objective To evaluate the diagnostic value of velocity parameters of Tardus-Parvus for the detection of renal artery stenosis ( RAS) ( diameter reduction ≥50%) and to determine the useful cutoffs for these parameters .Methods A study group was composed of 221 renal arteries that were detected Tardus-Parvus by color Doppler flow imaging and were referred to abdomino-aorto-re-nal arteriography afterwards .Five Doppler parameters including the peak systolic velocity ( PSV ) , end-diastolic minimum velocity (EDV), resistance index (RI), acceleration time (AT), and accelerated velocity (AC) from each location including renal aorta ( MRA) , segmental artery ( SRA) , interlobar artery ( IRA) , and arcuate artery ( ARA) were archived and compared among the differ-ent groups .Renal artery angiography showed arterial canon reduced 50% or higher RAS .Arteries were considered stenosed on renal arteriography if there was a diameter reduction of greater than 50%.Statistical analysis to determine the best parameter for predicting a RAS was performed with the receiver operating characteristic ( ROC) curves.The sensitivity, specificity, and negative and positive predicting values at various cutoffs were calculated .Results Renal artery stenosis degree was less than 50% in 16 cases, 50%~99%in 197 cases, completely occluded in 2 cases, and no stenosis in 6 case by renal arteriography .For RAS with inner diameter re-duction of 50%or more, the ROC curve analysis showed renal artery flow velocity had a good sensitivity and specificity , 50%~99%of the RAS had optimal threshold value in PSV 20 cm/s, EDV 10 cm/s, RI 0.50, AT 0.09 s, and AC 1.5 m/s2.Conclusions Tardus-Parvus had high specificity and sensitivity for diagnosis of stenosis rate in more than 50% of the RAS, low sensitivity for the narrow degree in 0~49%, and no clinical value for the renal artery occlusion .

PCR/ASO probes were applied to analyse the T-786C polymorphisms in 5′-flanking region of endothelial nitric oxide synthase(eNOS)gene in type 2 diabetic patients with or without nephropatby and healthy individuals.The results showed that the T-786C polymorphisms of eNOS gene seemed to be related to diabetic nephropathy in type 2 diabetes.

Molecular imprinting technique (MIT) involves the synthesis of polymer in the presence of a template to produce complementary binding sites in terms of its size, shape and functional group orientation. Such kind of polymer possesses specific recognition ability towards its template molecule. Despite the rapid development of MIT over the years, the majority of the template molecules that have been studied are small molecules, while molecular imprinting of proteins remains a significant yet challenging task due to their large size, structural flexibility and complex conformation. This review, we summarized the research findings over the past years, and discussed the nano-reinforcing materials used to prepare molecular imprinting of proteins and the perspective of these nano-reinforcing materials.
Binding Sites ; Molecular Conformation ; Molecular Imprinting ; Nanostructures ; chemistry ; Polymers ; chemistry ; Proteins ; chemistry

Objective To investigate the role of individual dental stent on taste protection in the patients with primary nasopharyngeal carcinoma.Methods Firstly,dosimetric evaluation of the tongue under the circumstance of 10 pairs of patient wearing dental stent or not was done.Secondly,a total of 61 patients were randomized into two arms:29 were in the trial arm and 32 in the control arm.The patients wore dental stent during radiotherapy in trial group,but not in control group.The endpoint was taste dysfunction before radiotherapy,every week during radiotherapy till the completion of radiotherapy,and followed up six months after radiotherapy.Results The mean dose of tip of tongue,body of tongue,base of tongue for patient with dental stent or not were (394.43±24.01) cGy,(986.35±77.15) cGy,(4 401.16±179.01) cGy and (677.03± 110.05) cGy,(2 418.19±414.18) cGy,(4 878.67±387.45) cGy (P value were 0.031,0.007 and 0.284,respectively) separately.By the completion of the radiotherapy,there were 9 (31.03 ％) patients suffering from a taste dysfunction in the trial group and 25 (78.13 ％) in the control group (P ＜ 0.001).Conclusions Individual dental stent has a potential tendency to relieve the taste impairment by reducing the irradiation dose of tongue.

Objective To investigate the efficacy of intratympanic methylprednisolone perfusion (IMP) for the treatment of sudden sensorineural hearing loss (SSNHL ) which failed to be fully responsive to conventional treatment .Methods The hearing outcomes of 87 patients with unilateral SSNHL were retrospectively analyzed .All of the patients received IMP after not fully responsive to conventional treatment of varying periods of time .They were hospitalized in our department between January 2008 and December 2012 and were followed up for at least one year to exclude recurrent hearing loss .Results The effective rate was 66 .67% and the mean PTA improvement was (18 .53 ± 13 .54)dB of the patients with the time interval between onset of symptoms and IMP within 15 days , 21 .21% and (5 .92 ± 15 .18)dB of the patients with the interval between 16 and 30 days ,4 .76% and (3 .69 ± 7 .00) dB of the patients with the interval more than 30 days respectively .The significant difference in the effective rates were compared among the three groups(χ2 =25 .91 ,P<0 .01) .Regarding to the PTA improvement ,the group with interval within 15 days was better than the other two groups(F=11 .182 ,P<0 .01) .A total of 30 cases acquired more than 15 dB hearing gain after IMP .One of them was hearing loss in low frequencies and the other 29 cases were hearing loss at all frequencies .The mean hearing gains of the 29 cases in 0 .25 kHz ,0 .5 kHz ,1 kHz ,2 kHz , 4 kHz and 8 kHz were 35 .17 ± 18 .15 dB ,35 .38 ± 15 .90 dB ,31 .28 ± 19 .74 dB ,21 .31 ± 17 .34 dB ,14 .97 ± 16 .00 dB and 13 .80 ± 16 .35 dB ,respectively .The mean hearing gains at lower three frequencies (0 .25~1 kHz)were better than those at higher three frequencies (2 k~8 kHz)(F=9 .494 ,P<0 .01) .Conclusion Receiving IMP earlier might help to acquire better hearing gain for the patients with SSNHL after not fully responsive to conventional treat‐ments .The hearing gains at the lower frequencies were better than those at the higher frequencies after IMP .

Objective To explore the effect of nuclear factor-kappaB(NF-?B) on cardiac myocyte apoptosis and understand the molecular mechanism of decrease of heart function in septic shock rats.Methods Twenty Wistar rats were randomly divided into the septic shock group and the normal control group.The septic shock group(n=10) were fixed with anaesthesia and made into 1.5 cm slices just along the abdomen midline.Then the roots of appendices were returned to the belly cavity after being ligated and punctured 4 times with the No.14 pinhead.After that,the slices were sewn up layer by layer.After 12 hours,the rats were all sacrificed,the blood taken and the serum separated.In the end,the heart specimens of the septic shock group were set aside.Meanwhile,the normal control group were dealt with in the same way except that they were not subjected to cecal ligation and puncture.Then NF-?B protein levels in cardiac tissue and the index of cardiac myocyte apoptosis were measured.Results NF-?B protein levels in the septic shock group(9 cases were strong masculine gender,1 case was middle masculine gender)elevated significantly compared with the normal control group(8 cases were negative gender,2 cases were weak masculine gender) in cardiac tissue(P

Objective To investigate the immunoregulatory effect and compare the different regula- tions of bone marrow mescnchymal stem cells(MSCs)derived from both lupus(NZBWF1/J)and normal(BALB/ c)mice on T lymphocytes in vitro.Methods MSCs from NZBWF1/J and BALB/c mice bone marrow were iso- lated and expanded,and identified by the surface phenotypes.CD3~+ T lymphocytes isolated by nylon wool columns were stimulated by phorbol myristate acetate(PMA)and co-cultured with or without the two strains of MSCs for 24 h.Intracellular eytokines of T cell,such as interferon(IFN)-?,interleukin(IL)-4,IL-12,IL-6, were analyzed by flow cytometry and quantification of transcription factors T-box expressed in T cells(T-bet) and GATA-binding protein 3(GATA-3)were detected by reverse transcriptase PCR(RT-PCR).T cell apop- tosis was assessed by flow cytometry using rhodamine123.Results The results showed that a decrease of CD3~+ T cell apoptosis was seen when NZBWF1/J MSCs or BALB/c MSCs were added to T cells stimulated by PMA(P＜0.05),and an increase of TH2 cytokines by NZBWF1/J MSCs and TH1 eytokines by BALB/c MSCs were observed in the CD3~+ T cells eo-cuhured with MSCs(P＜0.05).Conclusion It is suggested that the al- teration of T subsets caused by MSCs may interfere with the systemic lupus erythematosus(SLE)development and normal MSCs may be effective in the improvement of SLE.NZBWF1/J MSCs have defective immunoregula- tory function when compared with MSCs from healthy mouse strains.

BACKGROUND: Rational exercise training promotes bone and lipid metabolisms, while over-trained exercise makes negative effect. There are many biomarkers and pathways in the progress of bone and lipid metabolisms, which have been explored in different suitable studies. OBJECTIVE: To summarize the indexes and pathways of bone and lipid metabolisms, especially the common biomarkers and pathways, and to explore the effects of exercise on bone and lipid metabolisms. METHODS: PubMed and CNKI databases were retrieved with the keywords of "exercise training, bone metabolism, lipid metabolism, index, pathway" in English and Chinese, respectively. Finally, 52 eligible articles were enrolled for result analysis. RESULTS AND CONCLUSION: Bone metabolic indexes include 25-hydroxy-vitamin-D, calcitonin, parathyroid hormone, tumor necrosis factor, interleukin 1, 2, 4, 6 and 11, insulin-like growth factor 1, transforming growth factor-beta, bone morphogenetic protein, interferon, macrophage colony-stimulating factor, fibroblast growth factor, platelet fireworks growth factor, tartrate-resistant acid phosphatase, collagen Ⅰ telopeptide, pyridinoline, urinary deoxypyridinoline, alkaline phosphatase, osteocalcin, osteoporogeterin, carboxyterminal propeptide of type Ⅰ procollagen and so on. While lipid metabolic indexes contain triacylglycerol, serum total cholesterol, high density lipoprotein, low density lipoprotein, leptin, adiponectin, apolipoprotein, oxidized low density lipoprotein, and low density lipoprotein receptor related protein. Exercise intensity and duration are important factors for bone and lipid metabolisms. While a long-term high-intensity exercise will do harm to bone and lipid metabolisms, and a short-time high-intensity exercise is beneficial for bone metabolism. The interaction of exercise intensity and duration on bone and lipid metabolisms still needs to be further studied.

Objective To discuss the psychology and behavior of elderly hypoglycemia patients with symptomatic carotid artery stenosis, and compare the differences in psychology and behavior between groups.Methods Measurement and assessment with fall efficacy scale on psychology towards prevention of fall among 408 elderly hypoglycemia patients (＞ 60 years old) with symptomatic carotid artery stenosis were taken; They were divided for hypoglycemia history, carotid artery stenosis and ischemia sympton, and fall history; SPSS 17.0software was applied to do statistical analysis. Results There is significant difference on fall efficacy scale score between groups with and without hypoglycemia, carotid artery stenosis and ischemia sympton, and fall history (P ＜0. 0 1). Conclusions Subdividing symptomatic groups, applying preventive intervention procedure on prevention of fall, education on psychology and behavior towards prevention of fall are the effective psychological intervention measures on prevention of fall.