Objective To explore the inhibitory effect of recombinant mutant human tumor necrosis factor-α(rmhTNF-α) in combination with cisplatin on human lung adenocarcinoma cell line A549.
Methods Human lung adenocarcinoma cell line A549 was treated with varying concentrations of rmhTNF-α (0.38, 0.75, 1.50, 6.00 and 12.00 IU/ml) or cisplatin (3.91, 7.81, 15.63, 31.25 and 62.50 μg/ml) for 24 hours. Viable cell number was analyzed by using crystal violet staining. The inhibitory rates of A549 cells growth by the two drugs were calculated. For analyzing whether there was a synergistic effect of rmhTNF-α with cisplatin, A549 cells were treated with 0.75 IU/ml rmhTNF-αand increased concentrations of cisplatin.
Results rmhTNF-αor cisplatin inhibited the growth of A549 cell lines in a dose-dependent manner. The inhibitory effect of rmhTNF-αcombined with cisplatin was significantly greater than cisplatin alone at the same concentration (all P<0.01).
Conclusion rmhTNF-αcombined with cisplatin might have synergistic inhibitory effect on human lung adenocarcinoma cell line A549.

To study the chemical constituents from the bark of Myrica rubra, fourteen compounds were isolated from the methanolic extract using various chromatographic techniques, including silica gel, Sephadex LH-20 and preparative HPLC. Their structures were identified on the basis of chemical properties and spectroscopic data, as 3, 5-dimethoxy-4-hydroxymyricanol (1), myricanol (2), myricanone (3), myricanol 11-sulfate (4), myricitrin (5), quercetin (6), quercetin-3-rhamnoside (7), tamarixol (8), uvaol (9), ursolic acid (10), taraxerol (11), myricadiol (12), β-sitosterol (13) and β-daucosterol (14). Among them, compound 1 is a new compound, named as 3, 5-dimethoxy-4-hydroxymyricanol, compounds 8, 9 were isolated from the genus Myrica for the first time.
Diarylheptanoids ; chemistry ; isolation & purification ; Myrica ; chemistry ; Phytochemicals ; chemistry ; isolation & purification ; Plant Bark ; chemistry

This paper describes the heart of class supplies involved in bidding and purchasing code library classification principles and, in the hope of medical supplies through the establishment of bidding and purchasing code library to assist the health authorities and medical institutions for effective quality control. Clinical research oriented, CT, volume, operation cost, cost per capita, BEP.
Cardiac Surgical Procedures ; instrumentation ; Disposable Equipment ; supply & distribution ; Materials Management, Hospital ; economics ; organization & administration ; Purchasing, Hospital ; economics ; organization & administration

To identify whether a highly repeated GT sequence from DCA1 promoter from Dunaliella salina,which have been proved to be a salt-inducible promoter in our previous study,would be a salt-inducible regulation element,different primers were designed to amplify 6 different-length fragments of DCA1 promoter from D.salina by PCR.After these fragments were respectively inserted into the HindⅢ-BamH I sites of the vector pU?GUS,serial expression vectors containing the gus gene were generated.D.salina cells transformed with these recombinant plasmids by electroporation were grown in liquid media containing different concentrations of sodium chloride respectively.GUS enzyme activity was measured histochemically and fluorometrically.The results revealed that 3 fragments containing GT repeated sequence drove the external gus gene expression and the expression pattern of the gus gene was regulated by the concentrations of sodium chloride.Additionally,the 2 fragments without tandem GT sequence drove the gus gene expression,but the expression pattern of the gus gene wasn't regulated by the concentration of sodium chloride;Also,the upstream fragment of the tandem GT sequence wasn't able to drive the gus gene expression.In conclusion,the highly repeated GT sequence from the DCA1 promoter plays an important role in the salt-inducible regulation of DCA1 promoter from D.salina and might be a novel salt-inducible element.

Objective The CT values of brain tissue of premature infants are usually low and it is difficult to assess if they stand in the normal range of CT values of premature infants. This paper aims at studying the differences of brain CT values between the premature and term infants. Methods Seventy-six premature infants were divided into 2 groups according to the gestational age: 28 - 33+6 weeks group (n = 36) and 34 - 36+6 weeks group (n = 40). Fifty term infants were used as the control group. The cranial CT scan was taken and the CT values of various regions of brain tissues were measured. Results The CT values of cerebellum, brainstem, basal segment, thalamus, white matter and grey matter in the two premature infants groups were significantly lower than those in the control group ( P ＜ 0.01 ).The CT values of the above regions of brain tissues in the 28 - 33 + 6 weeks group were significantly lower than those in the 34- 36+ 6 weeks group ( P ＜ 0.01). Conclusions This study shows that the brain CT values of the premature infants are significantly lower than those of the term infants, thus the reference range of the brain CT values of full term neonates is not fit for the premature newborns.

OBJECTIVESTo investigate role of hypoxia inducible factor 1 (HIF-1) in the transcriptional activation of heat shock protein 70-2 (HSP70-2) in hepatocellular carcinoma (HCC) cells under hypoxic conditions.

METHODSHCC cells were exposed to reduced oxygen atmosphere (1% O2), or treated with YC-1 or HIF-1 alpha siRNA, the expression of HIF-1 alpha and HSP70-2 were detected by Western blot analysis. Serial deletions of the HSPA2 promoter were cloned in the reporter pGL3-Basic plasmid. These reporter plasmids were co-transfected with HIF-1 alpha siRNA, and the promoter activities were detected with the dual luciferase assay.

RESULTSWestern blot analysis showed that both HIF-1 alpha and HSP70-2 proteins were strongly increased after HCC cells were exposed to hypoxic conditions (1% O2) for 6 h, and the expression level of HSP70-2 was increased in a time-dependent manner. Treatment of HepG2 cells with YC-1 or HIF-1 alpha siRNA significantly inhibited the expression of HIF-1 alpha and HSP70-2. In silico analysis of the HSP70-2 promoter using the Gene2 Promoter software revealed the presence of two putative hypoxic response element (HRE) consensus at -446bp (HRE1) and -238bp (HRE2). Depletion of promoter sequence between -653 and -385 led to a dramatic reduction of promoter activity, whereas further deletion to position -201 did not reduce the activity further. These data suggested that HRE1 plays an important role in hypoxia-induced activation of the HSPA2 promoter. Site-directed mutagenesis further confirmed these results. Mutation of HRE1 but not of HRE2 abrogated the sensitivity of the HSP70-2 promoter to hypoxia.

CONCLUSIONSHSP70-2 expression is up-regulated in response to hypoxia and a HIF-1 binding site (HRE1) in the HSP70-2 promoter is involved in this response.

Base Sequence ; Carcinoma, Hepatocellular ; metabolism ; pathology ; Cell Hypoxia ; Gene Expression Regulation, Neoplastic ; HSP70 Heat-Shock Proteins ; genetics ; metabolism ; Hep G2 Cells ; Humans ; Hypoxia-Inducible Factor 1 ; genetics ; metabolism ; Hypoxia-Inducible Factor 1, alpha Subunit ; antagonists & inhibitors ; metabolism ; Liver Neoplasms ; metabolism ; pathology ; Molecular Sequence Data ; Plasmids ; genetics ; Promoter Regions, Genetic ; RNA, Small Interfering ; genetics ; Transfection ; Up-Regulation

OBJECTIVETo examine the long-term outcomes of total colonic aganglionosis (TCA) and to evaluate their nutritional status.

METHODSEleven pediatric patients treated for TCA between January 1999 and December 2010 were included in the study and followed up. Physical measurements including height, weight and laboratory tests were assessed. Anorectal functions were evaluated with Kelly score and quality of life(QOL) using questionnaire.

RESULTSThe length of follow-up ranged from 8 to 147 months. The children had satisfactory anorectal function (Kelly score, 5-6). One child had a Kelly score of 3. The children who were followed up less than 48 months had significant higher Kelly scores compared with those with more than 48 months follow-up(P<0.05). QOL was good in nine patients (QOL score, 9-10) and moderate (score, 7-8) in 2 patients. Weight-for-age was normal in 2 patients, mild malnutrition in 6 patients, and moderate malnutrition in 3 patients. Height-for-age was normal in 6 patients, mild malnutrition in 3 patients, and moderate malnutrition in 2 patients. The serum albumin was(49.0±2.7) g/L in children with well-educated parents, significantly higher than those with poorly-educated parents(44.3±1.9) g/L(P<0.05).

CONCLUSIONSLong-term outcomes of children with TCA are satisfactory with good anorectal function and quality of life. Low body weight is more common than low height. Children with well-educated parents have better nutrition status.

Follow-Up Studies ; Hirschsprung Disease ; surgery ; Humans ; Infant ; Male ; Nutritional Status ; Treatment Outcome

OBJECTIVETo analyze the possible causes of BPH surgery-related urethral stricture and summarize the experience in its clinical management.

METHODSThe clinical data of 37 cases of BPH surgery-related urethral stricture were analyzed retrospectively. The patients averaged 68.5 years in age, of whom 12 had the history of open surgery, and 25 transurethral surgery. Anterior urethral stricture was found in 6 cases, and posterior urethra in stricture 31. Thirty-five cases were treated by holmium laser urethrotomy (HLU) or a combination of HLU with transurethral resection of the scar in the stenotic segment, and the results were evaluated based on the maximum flow rate (Qmax).

RESULTSTwo cases of full penile urethral stricture were treated by urinary diversion, and all the rest by urethral stricture surgery. Catheters were indwelt in 4 cases of urethral stenosis for 5-7 days post-operatively, and smooth urination was achieved after their removal, with a Qmax of > 15 ml/s. Another 31 cases of membranous urethral stricture received catheter indwelling of 2 -4 weeks and were followed up for 1 - 21 (mean 11. 5) months, of whom 23 experienced satisfactory voiding, with an average Qmax of 14.3 ml/s, and the other 8 poor voiding, with a Qmax of < 8 ml/s.

CONCLUSIONHLU or a combination of HLU with transurethral resection of the scar in the stenotic segment is an effective method for the treatment of BPH surgery-related urethral stricture. And conscientiously performed BPH surgery can reduce the incidence of urethral stricture.

Aged ; Humans ; Laser Therapy ; Lasers, Solid-State ; Male ; Middle Aged ; Postoperative Complications ; prevention & control ; Prostatic Hyperplasia ; surgery ; Retrospective Studies ; Urethra ; Urethral Stricture ; etiology ; prevention & control

OBJECTIVETo investigate whether the day of embryo transfer (day 2 or day 3) affects clinical pregnancy outcomes in poor responder patients.

METHODSWe retrospectively analyzed the pregnancy rates of 265 initial fresh cycles of in vitro fertilization-embryo transfer (IVF-ET), all transferred on day 2 (n = 169) or day 3 (n = 96) irrespective of quality because of an extremely low number of available embryos.

RESULTSAmong the poor responders aged < 35 years, a higher rate of clinical pregnancy was achieved in the day-3 than in the day-2 group (50% vs 32.43% ; RR = 0.65, 95% CI: 0.43 - 0.99), and among those aged years, the two groups showed similar pregnancy outcomes.

CONCLUSIONShortening the time of embryo culture has no obvious benefit for the pregnancy outcome. For the poor responders under 35 years of age, day-3 embryo transfer may afford an even higher rate of clinical pregnancy.

Adult ; Embryo Transfer ; methods ; Female ; Fertilization in Vitro ; Humans ; Ovary ; physiology ; Pregnancy ; Pregnancy Outcome ; Pregnancy Rate ; Retrospective Studies

OBJECTIVETo explore the inhibitory effect of recombinant mutant human tumor necrosis factor-Α (rmhTNF-Α) in combination with cisplatin on human lung adenocarcinoma cell line A549.

METHODSHuman lung adenocarcinoma cell line A549 was treated with varying concentrations of rmhTNF-Α (0.38, 0.75, 1.50, 6.00 and 12.00 IU/ml) or cisplatin (3.91, 7.81, 15.63, 31.25 and 62.50 Μg/ml) for 24 hours. Viable cell number was analyzed by using crystal violet staining. The inhibitory rates of A549 cells growth by the two drugs were calculated. For analyzing whether there was a synergistic effect of rmhTNF-Α with cisplatin, A549 cells were treated with 0.75 IU/ml rmhTNF-Α and increased concentrations of cisplatin.

RESULTSrmhTNF-Α or cisplatin inhibited the growth of A549 cell lines in a dose-dependent manner. The inhibitory effect of rmhTNF-Α combined with cisplatin was significantly greater than cisplatin alone at the same concentration (all P<0.01).

CONCLUSIONrmhTNF-Α combined with cisplatin might have synergistic inhibitory effect on human lung adenocarcinoma cell line A549.

Adenocarcinoma ; pathology ; Antineoplastic Combined Chemotherapy Protocols ; administration & dosage ; pharmacology ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Cisplatin ; administration & dosage ; therapeutic use ; Dose-Response Relationship, Drug ; Humans ; Lung Neoplasms ; pathology ; Recombinant Proteins ; administration & dosage ; genetics ; pharmacology ; Tumor Necrosis Factor-alpha ; administration & dosage ; genetics ; pharmacology