Objective To investigate the effects of lead on the vitality, differentiation, special functional markers and morphological changes of the osteoblasts in newborn rats, which helps to clarify the toxicity mechanism of lead on the skeleton development in children. Methods The osteoblasts were isolated from the calvariae in newborn Wistar rats and cultured in DMEM medium. Lead acetate at different concentration (0, 0.1, 0.5, 1, 5, 10, 50, 100 ?mol/L) was added for 24 h, 48 h, 72 h. The vitality of the osteoblasts was measured by MTT methods; The activity of alkaline phosphatase(ALP) was measured by pNPP method. The protein content of the osteoblasts was determined by Coomassie brilliant blue method. The levels of osteocalcin in both secreted (in medium) and cellular of osteoblasts were determined by radiate immunochemistry methods. The optical structure was determined by LM. Results The vitality decreased significantly when the dose was at more than 50 ?mol/L, especially after 72 h. The activity of ALP decreased significantly when more than 0.5 ?mol/L, whereas the levels of secreted osteocalcin decreased significantly when at 0.1 ?mol/L. It appeared lead had some toxicity on the shape and number on the osteoblasts. Conclusion Lead acetate has adverse effect, at higher doses, on the vitality, protein content, ALP, osteocalcin and optical structure, maybe it is one of the mechanisms of lead influencing the development of the osteoblasts even the skeleton.

Objective To develop an instrument to measure the quality of life (QOL) suitable for Chinese adult patients with obstructive sleep apnea hypopnea syndrome (OSAHS) and evaluate it. Methods A list of 72 items potentially related to QOL of patients with OSAHS was constructed via discussion with OSAHS related people, as well as referring to some foreign QOL instruments. Twenty patients were asked to identify the most significant items. Then, frequency, importance and impact score, which is the product of frequency and importance, of the items were calculated. Those items with an impact score equal to or greater than 1.5 were retained in the instrument. Fifty-two OSAHS patients were divided into two groups based on their apnea-hypopnea index (AHI) (AHI

According to the TCM theory, human growth, development and aging are closely related to kidney function and the main cause of human senility is deficiency of “kidney essence”. Recent studies showed that the “kidney” in TOM include the regulatory function of the neuroendocrine and immune systems.
In this paper, the effect of Guzhen Recipe (_??__??__??_), an aging retarding prescription composed of kidney tonifying herbs such as Radix Polygoni Multiflori (_??__??_), Herba Cistanchis (_??__??_) Rubus Chiagii (_??__??__??_) etc. on the hippocampus and HPAT axis in senile rats were observed. The results showed : (1) With age the number of glucocorticoid receptors (GCR) in the hippocampus, the concentrations of NE, DA, 5-HT in the hypothalamus were markedly decreased, while the plasma corticosterone concentration in senile rats was obviously increased. (2) The thymocyte GCR nuclear transition rate was increased significantly ; (3) The contents of cytoplasmic protein, nuclear RNA and DNA, the thymus weight/body weight ratio, the serum thymic factors as well asthe rate of lymphocyte transformation, the activity of IL-2 and NK cells in senile rats were obviously decreased compared to those of young control rats. Guzhen recipe however, was capable of improving these changes in the neuroendocrine-thymic net work in senile rats to varying degrees, suggesting that the kidney with Chinese Medicine might retard the functional degeneration of thymic endocrine partly by improving the feedback regulation of the hippocampal GCR and increasing the concentrations of NE and 5-HT of hypothalamus, thus decreasing the plasma corticosterone ; Simultaneously weakening the nuclear transition rate of thymocyte GCR, which in turn improving the immune function of the senile animal.
We concluded that Guzhen Recipe may retard the functional degeneration of both the hypo-thalamuspituitary-gornadal-thymic and hypothalamus-pituitary-thyroidal-thymic axis. All the above results revealed that retarding the aging effect using TCM in volves multiple-leves, multiple-systems and links. Using holistic regulation, imbalance links in aging process are modulated and the equilibrium of Yin and Yang are maintained. This is an important characteristic of the TCM to retard aging.
This research was supported by funds from National Natural Science Foundation of China No. 38970908.

Carcinoma, Squamous Cell ; metabolism ; pathology ; Cell Line, Tumor ; Humans ; Laryngeal Neoplasms ; metabolism ; pathology ; Matrix Metalloproteinase 9 ; biosynthesis ; genetics ; Oncogene Proteins, Viral ; genetics ; Papillomavirus E7 Proteins ; Plasmids ; RNA, Messenger ; metabolism ; Repressor Proteins ; genetics ; Transfection ; Vascular Endothelial Growth Factor A ; biosynthesis ; genetics

ObjectiveTo observe the effects ofYushen Zhuyun Prescription on ovarian morphology and sex hormone of rats with decreased ovarian reservation (DOR) induced by tripterygium glycosides; To explore its mechanism of action.Methods Tripterygium glycosides solution was used to establish DOR model rats by gastric gavage. 48 female SD rats were randomly divided into blank group, model group, positive medicine group andYushen Zhuyun Prescription low-, medium- and high-dose groups.Yushen ZhuyunPrescription groups were given the low, medium, high dosagesYushen Zhuyun Prescription liquid; positive medicine group were given estradiol valerate liquid; model group and blank control group were given normal saline with the same amount, by gavage 2 times per day for 14 consecutive days. The general condition of the rats was observed; ovarian was weighed and the viscera index was calculated; ovarian morphology was observed by HE staining; the levels of serum estradiol (E2), follicle stimulating hormone (FSH) and testosterone (T) were detected by radioimmunoassay; the levels of inhibin B (INHB) and anti Mullerian hormone (AMH) were detected by ELISA.Results Compared with the blank group, ovarian tissue atrophied; the number of follicles was reduced; ovarian index and the level of E2, INHB and AMH decreased; the levels of FSH and LH increased in the model group (P<0.01). Compared with the model group, ovarian tissue morphology improved significantly; the number of follicle and corpus luteum increased; follicular atresia was reduced; ovarian index and the levels of E2, INHB, and AMH increased; the levels of FSH and LH decreased in Yushen Zhuyun Prescription high-dose group (P<0.01). INHB and AMH had significant correlation (P<0.01). ConclusionYushen Zhuyun Prescription can regulate hormone levels, promote the growth and secretion of follicle, and inhibit follicular atresia, thereby improve ovarian reserve function.

Objective To study curative efficacy of dezocine in treatment of receiving laparoscopic appendectomy and its effects on white blood cell count and c reactive protein.Methods 90 patients of laparoscopic appendectomy who received therapy from January 2015 to October 2016 in our hospital were selected as research objects,according to random number table,those patients were divided into the observation group and the control group,45 cases in each group.The control group was treated with sufentanil, while the observation group was treated with dezocine.Then operation index, T0 (preoperative),T1(extubation),T2(after extubation) mean arterial pressure(MAP),heart rate(HR), respiration rate(RR),isual analogue scale/score ( VAS) , ramsay score ( RSS) , white blood cell count and c reactive protein of two groups after treatment were compared .Results After treatment, MAP,HR in the observation group were significantly lower than control group [(78.30 ±6.20)mmHg vs.(86.08 ±6.09)mmHg,(76.45 ±5.90)mmHg vs.(80.48 ±5.80)mmHg,(90.82 ±9.50)time/min vs.(96.73 ±9.83)time /min,(87.21 ±8.15)time /min vs.(93.59 ±9.90)time /min](P<0.05); VAS, RSS score were significantly lower than the control group[(2.60 ±0.70)score vs.(5.29 ±0.83)score,(3.53 ±0.92)score vs.(6.38 ± 1.21)score](P<0.05); White blood cell count, c reactive protein were significantly lower than the control group[(7.92 ±2.01) ×109/L vs.(14.98 ±2.11) ×109/L,(7.90 ±2.30)mg/L vs(12.46 ±3.10)mg/L](P<0.05).Conclusion Dezocine is well for receiving laparoscopic appendectomy, obvious analgesic effect, can significantly reduce the white blood cell count and c reactive protein.

As a treasure resource of novel drug lead compounds, how to rapidly and high-efficiently screen and isolate active components from natural products is critical. Thanks to its high resolution, high automation and flexible integration, online two-dimensional liquid chromatography has great potential for screening active ingredients from complex matrices by integrating a highly specific bio-recognition process into a two-dimensional liquid chromatography system before, on or after the column separation. This review comprehensively summarized recent developments, applications and shortcomings of online two-dimensional liquid chromatography for natural product screening from different integration modes, including pre-column, on-column and post-column screening methods.

Objective To investigate the efficacy of dexmedetomidine-assisted topical anesthesia in patients undergoing bronchoalveolar lavage ( BAL). Methods Twenty-four ASA Ⅱ or Ⅲ patients in ICU, aged 24-64 yr, weighing 50-80 kg, scheduled for BAL, were randomly divided into 2 groups ( n = 12 each) : topical anesthesia group (group A) , topical anesthesia + dexmedetomidine group (group B) . In group A, 0.9% normal saline 5 ml was injected intravenously 30 min before operation, 2% lidocaine 5-10 ml was given via a tracheal tube or cannula 5 min before operation and then an increment of 2% lidocaine 5 ml was given using fibreoptic bronchoscope every 15-30 min as required (the total amount was within 20 ml) . In group B, dexmedetomidine 0.5-1.0 μg/kg was injected (time of injection≥ 10 min) followed by infusion at 0.1-0.5 μg·kg-1 ·h-1 and the topical anesthesia was performed as the method described in group A. The time of lavage, adverse reactions and adverse cardiovascular events were recorded. Blood samples were taken 20 min before lavage, 20 min after the start of lavage and 20 min after the end of lavage (T1-3 ) for determination of the concentrations of plasma catecholamine and serum cortisol. Results The incidences of adverse reactions and adverse cardiovascular events were significantly lower and the operation time was significantly shorter in group B than in group A ( P < 0.05). The concentrations of plasma catecholamine and serum cortisol were significantly higher at T2，3 in group A, while lower at T2，3 in group B than at T1 ( P < 0.05) . The concentrations of plasma catecholamine and serum cortisol were significantly lower in group B than in group A ( P < 0.05). Conclusion Dexmedetomidine-assisted topical anesthesia can be used safely and effectively in BAL.

To improve the efficiency of halophilic actinobacteria screening and carry out the rapid selection of targeted strains, we tested 34 strains of Streptomonospora by PCR-single strand conformation polymorphism analysis (PCR-SSCP) based on genus-specific primers for the PCR identification. This approach employs PCR with two pairs of primers located in the 16S rRNA sequence flanking two variable region, then build clustering tree according as SSCP data. Synchronously, we sequenced all the 16S rRNA partial sequences for these strains to verify them. The results showed that the PCR-SSCP analysis was an efficient, easy-to-handle and economic method for rapid selection of halophilic actinobacteria resources.

Objective To explore the reconstructive methods of keeping cardiac function after resec- tion of cardiac carcinoma. Methods After anastomosis of esophageal mucosa and sub-mueosa with gastric counterparts, oblique invagination with gastric ehorion and visceral muscle were adopted in experimental group to keep cardiac anatomical and physiological function.Additionaly, tissues around pylorus were suffi- ciently dissociated to keep pylorie function.Contrastively,regular anastomosis with GF-1 26/28 after resection of cardiac carcinoma was adopted to reconstruct cardia,with thread marked 4 intervally used to reinforce anastomotic ostium in control group.The sphincter of pylorus was dilated to prevent pylorospasm and obstruc- tion.Results In experimental group,no anastomotic leakage,anastomotic stricture and gastroesophageal re- flux occurred.In control group,the incidence of anastomotic leakage and anastomotic stricture were 2.8 %(1/ 36)and 50 %(18/36)respectively,and pH≤4 at anastomotic ostium were found in 12 eases,accounting for 33.3 %, and pH≤6 in 29 cases, accounting for 80.6 %(29/36). Conclusion The reconstructive method of keeping cardiac and pyloric function in resection of cardiac carcinoma benefits recovery of post-operation pa- tients and improve their life quality.