ATP-binding cassette transporter Al (ABCAl) is a kind of membrane intergrate protein and may have multiple and diverse functions. It mediates the cellular efflux of phospholipids and cholesterol to lipid-poor apolipoproteinA- Ⅰ (apoA- Ⅰ ) and plays a significant role in high density lipoprotein (HDL) metabolism. Mutations in human ABCAl cause severe HDL deficiencies characterized by the virtual absence of apoA- Ⅰ and HDL and prevalent atherosclerosis. ABCAl expression is highly regulated and implies a variety of molecular actors. All of the nuclear receptors which involve in regulation of ABCAl expression act via the DR4 element in the ABCAl promoter. cAMP up-regulates ABCAl expression by acting both at the transcriptional and translational level. Cytokines have been shown to exert pleiotropic and antinomic effects on ABCAl transcription, In addition to these, some of enzymes and proteins such as protein kinase A, protein kinase CK2, cathepsin D are involved in the regulation of ABCAl expression. The recent progress in the structure, function and regulation of ABCAl transporter is reviewed.

Objective To prospectively assess the influence of intensity-modulated radiotherapy (IMRT) and conventional radiotherapy on quality of life (QOL) in patients with head and neck cancer (HNC) for clinical guidance. Methods From May 2007 to May 2008, 102 HNC patients were enrolled in this study. Fifty-two patients were treated with IMRT and 50 with conventional radiotherapy. In patients with IMRT, at least one parotid gland was spared, and the contralateral submandibular gland was spared in 24 patients. The parotid and submandibular gland were not spared in patient with conventional radiotherapy.QOL was assessed using EORTC QLQ C30 and HN35 questionnaires at 4 time points (before radiotherapy,end of radiotherapy, 2 months and 6 months after radiotherapy). A change of 10% in scores of the instru-ment range had been previously demonstrated to be clinically significant. Results In the study, 94% (31/33) of the QOL domains were worse after IMRT or conventional radiotherapy, including 49% (16/33) with significant difference (U=2.72-5.98, all values of P<0.01) and 33% (11/33) with clinical signifi-cance. At 2 months after radiotherapy, 12% (4/33) of the domains showed clinically significant improve-ment, however, 15% (5/33) of the domains did not show any improvement (U=3.10-5.93,all value of P < 0.01). Continuous improvement in most domains of QOL was shown at 6 months after radiotherapy. Clini-cally and statistically significant improvement were shown in 21% (7/33) of the domains, and some were even better than pretreatment except in dry mouth and sticky saliva scales (U=4.49 , P<0.01 and U=4.87 ,P <0.01). Compared with conventional radiotherapy, the dry mouth and sticky saliva caused by IM-RT were milder (U=4.57,P <0.01 and U=5.57, P < 0.01) and continuous improvement were shown over time after radiotherapy (U=7.23, P <0.01 and U = 7.57, P < 0.01). Similar improvement weren't shown in patients with conventional radiotherapy. Conclusions QOL in HNC patients is significant worse after ra-diotherapy. QOL can be improved continuously over time after treatment except dry mouth and sticky saliva which are the main factors affecting QOL. IMBT, causing less dry mouth and sticky saliva when compared with conventional radiotherapy, has benefits for the preservation of QOL.

Objective To examine the impact of cognitive behavior intervention (CBI) on mother-infant interaction in the neonatal department. Methods Low-risk appropriate for gestational age premature infants with gestational age 28-36 weeks, who were admitted to the neonatal intensive care unit in our hospital between August 2007 and May 2008, and their mothers were assigned to intervention group and control group respectively. Intervention group mothers (n = 19)participated in CBI. Control group mothers (n= 19) were asked to read educational materials. Mothers in the intervention group, all received 4 times interventions and 2 h for each time. The CBI process include assessment, plan, implementation and evaluation. Mothers were educated for knowledge about appearance and behavioral characteristics of preterm infants and were guided about how to take care of their babies and participate in nursing care process. Mothers completed measures on mother-infant interaction (Nursing Child Assessment Feeding Scale, NCAFS) in the first follow-up after infant discharge. Results The results showed that the scores of NCAFS and total scores of the mothers in the intervention mother-infant dyads were 46.4 ± 8.5 and 35.8±6.3,higher than in the control group (42.7±5.9 and 33.3 ± 5.6), respectively, but there were no statistic difference between the two groups (t = 1.55 and 1.28, P＞ 0. 05). The scores of "mother's response to distress" were significantly higher in the intervention mother-infant group (12. 2± 1.7) than in the control group (10.7±2.4)(t=2.10,P＜0.05). Conclusions The levels of premature infant-mother interactions are low. CBI can improve mother's response to premature infant's distress. Further study is needed to investigate the effects of CBI in improving mother-infant interaction.

Objective To investigate the cell-fusion modes and contractive characteristics of myotubes formed by muscle satellite cells in vitro. Methods The muscle satellite cells in quadriceps femoris of six 2-day-old SD rats were isolated, cultured and identified by immunofluorescence; the cell-fusion modes and contractive characteristics of myotubes were observed and recorded under microscope. Results The positve cells expressing marker Pax7 were obtained by immunofluorescence, and the purity was 90.3%. Myotubes were fused by several cells, cell and myotube or myotube and myotube. There were myotubes of spontaneous contraction on the conditions of no acetylcholine, no electric stimulation or no contiguous cells. Conclusion The myotubes of spontaneous contraction are fused by muscle satellite cells through three cell-fusion modes in vitro.

Objective To investigate the influence of alprostadil on renal function,oxidative stress,and immune function in early diabetic nephropathy patients.Methods Eighty-six cases of early diabetic nephropathy patients in our hospital during April 2013 to January 2016 were chosen as research subjects,all patients were divided into observation (n =43) and control (n =43) groups according to random data form.Patients in observation group received alprostadil combined with pioglitazone treatment and those in control group received pioglitazone treatment only,both lasted for one month.Before treatment,one month after treatment,renal function indices were detected;serum oxidative stress indices were detected by automatic biochemical analyzer;T lymphocyte subsets in peripheral blood were measured by flow cytometry.Results Before treatment,there were no significant differences in renal function,oxidative stress,immune function between two groups (P ＞ 0.05).One month after treatment,peripheral blood renal function indices such as blood urea nitrogen (BUN),estimated glomerular filtration rate (eGFR),and cystatin C (CysC) levels were lower in observation group than in control group,the level of serum albumin (Alb) was higher in observation group than in control group,the difference was statistically significant (P ＜ 0.05);semm oxidation indices malondialdehyde (MDA),and advanced oxidation protein products (AOPP) were lower in observation group than in control group,human antioxidant indices such as superoxide dismutase (SOD),and total antioxidant capacity (T-AOC) were higher in observation group than in control group,the difference was statistically significant (P ＜ 0.05);peripheral blood CD3 +,CD4 + T lymphocytes and the ratio of CD4 +/CD8 + were higher in observation group than in control group,CD8 +T lymphocyte level was lower in observation group than in control group,the difference was statistically significant (P ＜ 0.05).Conclusions Alprostadil can optimize the renal function and immune function in early diabetic nephropathy patients,reduce the degree of oxidative stress.

With inlet temperature, specific gravity, feeding speed as independent variables, the comprehensive evaluating indexes of content of schisandrin and arctiin as dependent variable, the experimental data were fitted to a second order polynomial equation. Based on establishing the mathematical relationship between the comprehensive evaluating indexes and respective variables, Box-Benhnken central composite test and response surface analysis method was employed to optimize the spray drying technology of Biqiu granules ethanol extract. The optimal drying parameter was as follows: the inlet temperature was 175 degrees C, the specific gravity was 1.10, feeding speed was 32 r x min(-1). Under these conditions, the comprehensive evaluating indexes of spraying dry processes was 92.68, which was close to the model prediction. The spraying dry technology of Biqiu granules ethanol extract optimized by response surface methodology was accurate and feasible, which provided theoretical experiment basis for the industrialization production.
Chemistry, Pharmaceutical ; methods ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Ethanol

First with the qualified rate of granules as the evaluation index, significant influencing factors were firstly screened by Plackett-Burman design. Then, with the qualified rate and moisture content as the evaluation indexes, significant factors that affect one-step pelletization technology were further optimized by Box-Behnken design; experimental data were imitated by multiple regression and second-order polynomial equation; and response surface method was used for predictive analysis of optimal technology. The best conditions were as follows: inlet air temperature of 85 degrees C, sample introduction speed of 33 r x min(-1), density of concrete 1. 10. One-step pelletization technology of Biqiu granules by Plackett-Burman design and Box-Behnken response surface methodology was stable and feasible with good predictability, which provided reliable basis for the industrialized production of Biqiu granules.
Chemistry, Pharmaceutical ; methods ; Drugs, Chinese Herbal ; chemistry ; Temperature

Objective:To detect the change of composition of immune cells in the spleen of miR-126 knockdown(miR-126KD) mice and preliminarily explore its significance .Methods: The expression level of miR-126 in spleens of miR-126KD mice was deter-mined by Realtime PCR.And the total number of splenocytes was calculated.The pathologic morphology change of the spleen was observed by HE staining.And the changes on proportion of DCs ,macrophages cells ,γδ T cells and NK T cells,CD3+T cells and its subgroup ,as well as CD19+B cells in spleens of miR-126KD mice were analyzed by Flow cytometry and calculated respectively.The level of phosphorylated AKt and NF-κB was analyzed by Western blot assay.Results:Compared with those of WT mice ,the expression level of miR-126 decreased obviously ( P<0.05 ) and the total number of cells increased obviously in spleen of miR-126 KD mice ( P<0.05).Moreover,the pathologic morphology of miR-126KD mice was significantly changed.The proportion and number of NK T cells in the inherent cells were significantly increased ( P<0.05 ) , but the proportion of Mφcells were significantly decreased ( P<0.05 ) . Meanwhile,the proportion and number of CD3+T cells and CD4+T cells in the adaptive immune cells were significantly increased (P<0.05),while the total number of CD19+B cells were significantly decreased (P<0.05).Last,the level of phosphorylation Akt and NF-κB increased obviously in spleen of miRNA-126 knockdown mice.Conclusion: Change obviously on the composition of immune cells subsets in the spleen of miRNA-126 knockdown mice ,which it may be related to the altered level of phosphorylated AKt and NF-κB and provides a preliminary experimental basis for the further exploring the roles of miR -126 in immune response.

Objective To study the therapeutic effect and safety of recombinant human growth hormone in short children born small for gestational age (SGA).Methods Twenty-two short children born SGA were randomly divided into 2 groups and were exposed to different doses of recombinant human growth hormone,which were low dose group [0.1 IU/(kg · d)] and high dose group [0.2 IU/(kg · d)].Treatment was carried out for 2 years.Before and after treatment,height,weight,bone age,insulin-like growth factor 1 (IGF-1),insulin-like growth factor-binding protein 3 (IGFBP-3),growth rate (GV),height standard deviation scores (HtSDS),predicted adult lifetime height (PAH),fasting and postprandial blood glucose,insulin,thyroid stimulating hormone (TSH),T3,T4,and glycosylated hemoglobin were measured.Results Basic value of growth hormone in SGA infant was (2.94 ± 3.27) μg/L.Two years after treatment of growth hormone in high dose group,growth rate [(8.11 ± 1.31) cm/year vs (4.21 ± 0.99) cm/ year],HtSDS(-1.16 ±0.83 vs-3.00 ±0.71),and PAH[(163.68 ±6.76) cm vs (156.54 ±7.39) cm] were significantly higher than those before treatment (F =110.3,30.47,26.20,all P ＜ 0.01).Similar changes were observed in low dose group except for PAH.In high dose group after 2 years of treatment,IGF-1,IGFBP-3 were significantly higher than those before the treatment and the difference was statistically significant (all P ＜ 0.05).Although the plasma levels of IGF-1 and IGFBP-3 in low dose group in 2 years of treatment were significantly higher than those before the treatment,the difference was not statistically significant (P ＞ 0.05).Compared with that before treatment,the added value of IGF-1 had a positive correlation with the added values of growth rate,HtSDS and PAH(r =0.567 4,0.652 4,0.584 3,0.499 8,all P ＜ 0.05).Similar observations were found in low dose group (r =0.437 1,0.405 6 and 0.501 1,all P ＜ 0.05).However,the added value of IGF-1 in low dose group had no correlation with PAH (r =0.200 8,P ＞ 0.05).Compared with that before treatment,2 groups had no differences in fasting and postprandial blood glucose,insulin,TSH,T3,T4 and glycosylated hemoglobin (all P ＞ 0.05).Conclusions Recombinant human growth hormone [0.20 IU/(kg · d)] may significantly increase the growth rate and PAH of short children born SGA,which is a safe and effective strategy for the treatment of short SGA.

Objective To investigate the effects of lentivirus-mediated heat shock protein 70 (HSP70) gene on voltage-gated calcium channels on the cell membrane of pheochromocytoma cell 12 (PC 12 cells) induced by ischemic/hypoxia and its mechanisms.Methods PC12 cells at logarithmic phase were collected,which were challenged with hypoxia for 6 hours and reoxygenation for 12 hours to stimulate the nerve cells suffered ischemia/reperfusion pathological process in vitro.PC12 cells were divided into non-infection group,infected by lentivirus containing green fluorescent protein (GFP) without HSP70 gene lentivirus control group (GFP lentivirus control group),and infected by lentivirus containing HSP70 and GFP gene recombined lentiviral infection group (HSP70 recombined lentiviral infection group).Real-time fluorescence quantitative reverse transcription-polymerase chain reaction (RT-PCR) and Western Blot were used to determine mRNA and protein expressions of L-type voltage-gated Ca2+ channel subunits cav1.2 and cav1.3,receptor gated channel subunits NR1 and NR2,and Na+/Ca2+ exchange (NCX) in PC12 cells.Results After being challenged with hypoxia/reoxygenation,the mRNA and protein expressions of cav1.2,NR1 and NR2 in the PC12 cells were significantly lower in HSP70 recombined lentiviral infection group than those of GFP lentivirus control group and non-infection group [cav1.2 mRNA (2-△△Ct):3.13 ± 0.46 vs.5.12 ± 0.52,5.13 ± 0.66;NR1 mRNA (2-△△△Ct):1.61 ± 0.44 vs.3.23 ±0.82,3.31 ±0.78;NR2 mRNA (2-△△Ct):2.09±0.41 vs.3.91 ±0.64,3.88±0.62;cav1.2 protein (gray value):2.82±0.39 vs.3.98±0.23,3.96±0.24;NR1 protein (gray value):1.84±0.35 vs.2.79±0.21,2.86±0.23;NR2 protein (gray value):0.87±0.24 vs.1.57±0.31,1.33±0.44;all P ＜ 0.01].But there were no statistical differences in the mRNA and protein expressions of cav1.2,NR1 and NR2 between GFP lentivirus control group and non-infection group (all P ＞ 0.01).There were no statistical differences in the mRNA and protein expressions of cav1.3 and NCX among non-infection group,GFP lentivirus control group and HSP70 recombined lentiviral infection group [cav1.3 mRNA (2-△△Ct):4.82 ± 0.32,4.72 ± 0.36,4.82 ± 0.29;NCX mRNA (2-△△Ct):3.49 ± 0.78,3.47 ± 0.71,3.56 ± 0.65;cav 1.3 protein (gray value):2.63±0.40,2.64±0.39,2.68±0.39;NCX protein (gray value):3.27±0.48,3.34±0.48,3.31 ±0.42;all P ＞ 0.01].Conclusion Exogenous HSP70 affects the expression of L-type voltage-gated Ca2+ channel subunit cav1.2 and receptor gated channel subunits NR1 and NR2,which may protect PC12 cells from the injury caused by ischemic/hypoxia.