Actins ; metabolism ; Adult ; Aged ; Carcinoma, Squamous Cell ; metabolism ; pathology ; Female ; Humans ; Laryngeal Neoplasms ; metabolism ; pathology ; Lymphatic Metastasis ; pathology ; Lymphatic Vessels ; metabolism ; pathology ; Male ; Middle Aged ; Vascular Endothelial Growth Factor C ; metabolism

Objective To investigate the clinical efficacy of noninvasive positive pressure ventilation for eld-erly patients with chronic obstructive pulmonary disease and respiratory failure.Methods A total of 64 elderly patients with chronic obstructive pulmonary disease and respiratory failure were collected.The patients were treated with conventional therapy,while using BiPAP ventilator line through the nose and mouth mask bilevel noninvasive pos-itive pressure ventilation therapy,and to give effective care.After treatment for 3d,the pH,PaO2 ,PaCO2 ,SaO2 index changes,respiration,heart rate changes and APACHE Ⅱ,GCS and accessory muscle score were observed.Adverse reactions were recorded.Results Before treatment the PH value of patient was (7.30 ±0.06),which significantly increased to (7.36 ±0.03 )after treatment,PaO2 values was significantly increased to (43.58 ±5.54)from (84.52 ±8.27),SaO2 value was significantly increased to (94.93 ±5.61)from (74.86 ±7.25),PaCO2 value from (71.69 ±8.48)decreased to (42.55 ±6.23).There was statistically significant before and after treatment (t =5.98,6.35,4.86,7.23,all P <0.05),respiratory rate,heart rate were significantly improved,showing a significant difference (t =4.87,5.32,all P <0.05 ),APACHE Ⅱ,GCS and accessory muscle scores were significantly improved,which APACHEⅡ,accessory muscle score was significantly lower,GCS score was significantly increased, were statistically significant (t =4.09,4.01,4.33,all P <0.05).Conclusion It shows that noninvasive positive pressure ventilation combined with conventional drug therapy can improve elderly patients with chronic obstructive pulmonary disease and respiratory failure in patients with clinical symptoms,increase ventilation and improve hyper-capnia,clinical efficacy is better,with no serious adverse reactions.

The Bcl-2 family of proteins play a central role in the control of apoptosis, a fundamental process for both human health and disease, by mitochondrial pathway. PUMA(p53 up-regulated modulator of apoptosis protein) is one of BH3-only members of Bcl-2 family , its function is to promote cell apoptosis. To obtain BH3 death domain peptide of PUMA and detect its biological activity, the synthesized double-stranded oligomeric nucleotide encoding PUMA-BH3 peptide was cloned into expression vector pTYB2,thus generating a construct of pTYB2-PUMA-BH3 which expressed PUMA-BH3-intein-chitin binding domain fusion protein. Then the recombinant plasmid was transformed into E.coli BL-21 (DE3) and fusion protein was expressed under induction by IPTG. The soluble PUMA-BH3 peptide was purified from chitin affinity chromatography by DTT reduction. Through measuring mitochondria viability(MTT),mitochondria permeability transition(MPT) and the translocation of cytochrome c(Cyt c ) assayed by western blotting, the biological pro-apoptotic activity of PUMA-BH3 peptide was studied. The PUMA-BH3 peptide has the effects on decreasing the mitochondria viability remarkably , inducing mitochondrial swelling and promoting Cyt c releasing from isolated mitochodria . Mitochondrial swelling and the release of Cyt c induced by PUMA-BH3 peptide concerned with the opening of MPT,which can be improved by cyclosporine A(CsA).These results indicated that recombinant PUMA-BH3 peptide might possess pro-apoptosis activity and paved a reasonable way for the study of new apoptosis regulators.

Piroxicam has polymorphism. Different crystalline forms can exhibit different physicochemical properties and biological activities. Analysis of the intermolecular interactions is essential to reveal the formation mechanism and differences of polymorphs. In this paper, Hirshfeld surface analysis and semi-empirical methods were used to calculate and analyze the intermolecular interactions in seven polymorphic forms of piroxicam. The results show that the Hirshfeld surface analysis method can clearly and intuitively reveal the intermolecular interactions, among which H…H, O…H/H…O and N…H/H…N interactions account for 95% of the total energy. There are differences in the proportion and distribution of the forces of different crystal forms. The energy calculation shows that the lattice energy of the hydrate is significantly lower than that of the anhydrous forms, and in the specific energy distribution, the contribution of the dispersion force is the most prominent. Further interaction energy analysis was found that within the distance of 3.8 Å from the center of the piroxicam molecule, different crystalline forms of piroxicam molecule have different interaction energies with surrounding molecules.

AIM:To observe the effects of normal mesenteric lymph (NML) on the lung, heart and liver inju-ries and the phosphorylation levels of p 38 mitogen-activated protein kinase ( MAPK) , extracellular signal-regulated kinase (ERK) 1/2 and c-Jun N-terminal kinase (JNK) in the mice with endotoxic shock (ES).METHODS: The NML was drained form health male BALB/c mice for the intervention of ES after the removal of cellular constituent .Lipopolysaccha-ride (LPS, 35 mg/kg) was intraperitoneally injected into the mice for the establishment of ES model .After 60 min of LPS injection, the administration of NML (1/15 of whole blood volume) was performed through the femoral artery in NML +ES group.Meanwhile, the mean arterial pressure (MAP) was monitored during the experiment .At 6 h after intraperitoneal in-jection of LPS or the corresponding time point , blood samples were harvested from the heart through apical centesis for de-termination of the biochemical indexes to reflect myocardial and hepatocyte injuries .Simultaneously , the lung , heart and liver tissue specimens from a fixed location were harvested for the observation of histomorphology and the measurement of phosphorylation levels of p38 MAPK, ERK1/2 and JNK.RESULTS:Compared with sham shock (SS) group, MAP in ES group and NML+ES group remarkably decreased at multiple time points after intraperitoneal injection of LPS .However, MAP in NML+ES group at 80 min, 90 min, 190 min, 210 min, 240 min, 250 min, 340 min, 350 min, and 360 min were significantly increased compared with ES group .There were normal structures in the lung , liver and myocardium of the mice in SS group, while the morphological damages of these tissues appeared in ES group .Meanwhile, the damages were attenuated in the mice of NML +ES group.The activities of AST , ALT and CK-MB in the plasma in ES group were remark-ably higher than those in SS group .The CK-MB activity in NML+ES group was also increased compared with SS group , and the activities of AST and LDH-1 were lower than those in ES group .At 6 h after LPS injection , the phosphorylation levels of p38 MAPK, ERK1/2 and JNK in the lung tissues were remarkably increased .Meanwhile , no statistical difference of these indexes between the myocardial and hepatic tissues was observed .NML intervention decreased the phosphorylation levels of p38 MAPK in the lung tissues , and p38 MAPK, ERK1/2 and JNK in the myocardial tissues .CONCLUSION:The NML administration alleviates multi-organ injuries and reduces the phosphorylation level of p 38 MAPK in the lung tis-sues in the mice subjected to ES .

Objective To screen the differentially expressed genes in esophageal squamous cell cancer (ESCC) and normal tissue of esophageal mucosa in Kazakh. Methods RNA was extracted from the ESCC sections in Kazakh patients, and was amplified to obtain cRNA. The gene expression profiles in ESCC and normal tissue of esophageal mucosa were detected by HG-U133 Plus 2.0 gene chip. The results were analyzed by bioinfor-matics. Results One hundred and seventy differentially expressed genes in ESCC and normal tissue of esophageal mucosa were found, with a difference of more than 10 times in expression levels. Of the 170 genes, 39 were up-regulated (signal log ratio > 3 ) and 131 down-regulated (signal log ratio < - 3). These factors such as cell cycle regulation, apoptosis, cytoskeleton; extracellular matrix, intracellular signal transduction, protein translation and synthesis, and immunological functions were correlated with the genes with abnormal expression. Conclusion The use of oligonucleotide microarray accurately and efficiently screen the 170 target genes in ESCC in Kazakh. It is suggested that these genes may be related to the carcinogenesis and development of ESCC in Kazakh.

This paper introduces the designing process of a massaging machine on the basis of Pro/Engineer. The machine has realized the virtual design and movement simulation for the product. It's computer-controlled system has greatly improved the automatic level of the massaging machine which has broad prospects for popularization and application.
Equipment Design ; Lumbar Vertebrae ; Man-Machine Systems ; Massage ; instrumentation ; User-Computer Interface

OBJECTIVE: To observe the expression pattern of caspase-3 and HCLS1-associated protein X-1 (HAX-1) at different time after cerebral contusion in rat, and explore the new method for estimating the injury interval. METHODS: The cerebral contusion model was established using adult SD male rats. Then the rats were randomly allocated into 8 groups: 2 h, 6 h, 12 h, 1 d, 3 d, and 7 d after cerebral contusion, sham-operation and normal control. Expression of caspase-3 and HAX-1 protein after cerebral contusion in rat was detected by Western blotting. Laser scanning confocal microscope was used to observe the number of HAX-1 positive cells and TUNEL-stained cells after cerebral contusion. RESULTS: The expression of caspase-3 increased parallelly with the time after cerebral contusion and reached the peak value on 3 d. The expression of caspase-3 decreased gradually and still maintained a high level expression on 7 d (P < 0.05). The expression of HAX-1 positive cell went up after injury, and reached the peak value at 6 h (P < 0.05), then turned down gradually after 12 h and went out of detection after 3 d. The number of TUNEL-stained cells increased obviously at 2 h and reached the peak value on 3 d. The number of TUNEL-stained apoptotic cells decreased gradually and still maintained a high level expression on 7 d (P < 0.05). CONCLUSION The expression of caspase-3 and HAX-1 after cerebral contusion has time sequential regularity, which may provide new evidence for forensic diagnosis of cerebral contusion interval.
Animals ; Blotting, Western ; Brain Injuries/pathology* ; Carrier Proteins/metabolism* ; Caspase 3/metabolism* ; Cerebellum/pathology* ; In Situ Nick-End Labeling ; Intracellular Signaling Peptides and Proteins ; Male ; Rats ; Rats, Sprague-Dawley

OBJECTIVETo observe the effect of Bushen Wenyang Huayu Recipe (BWHR) on hypoxia inducible factor-1α (HIF-1α), proline hydroxylase2 (PHD2), von Hippel Lindau disease (VHL) suppressor gene expressions in endometriosis (EM) rats with Shen yang deficiency blood stasis syndrome (SYDBSS), and to explore the pathogenesis of EM and the mechanism of BWHR for treating EM.

METHODSTotally 50 SD rats were randomly divided into five groups, i.e., the blank control group, the sham-operation group, the model group, the Chinese medicine (CM) group, and the Western medicine (WM) group, 10 in each group. Rats in the blank control group and the sham-operation group were fed routinely. Rats in the rest 3 groups received 30-day "extended refrigerator freezing and ice water immersion" and combined with " autotransplantation" to establish EM rat model with SYDBSS. One Milliliter BWHR at 3.33 g/mL was administered to rats in the CM group by gastrogavage. Gestrinone at the daily dose of 0. 5 mg/kg was administered to rats in the WM group by gastrogavage. Equal volume of normal saline was administered to rats in the model group, the blank control group, and the sham-operation group. The size and morphology of ectopic foci in rats were observed after 4 weeks of medication. Expressions of serum CA125, plasma cyclic adenosine monophosphate (cAMP), and plasma cyclic guanosine monophosphate (cGMP) were detected by radioimmunoassay. Morphological changes of eutopic endometrium and ectopic tissue were observed under the optical microscope by HE staining. Protein expressions and contents of HIF-lα, PHD2, and VHL were detected by immunohistochemical SABC method and Western blot. mRNA expressions of HIF-1α, PHD2, and VHL were detected by RT-PCR.

RESULTSThe ectopic foci grew significantly in the model group. Their volumes were obviously contracted after treated by CM and WM. Compared with the blank control group and the sham-operation group, serum CA125 and plasma cGMP obviously increased, cAMP obviously decreased (P < 0.05); expressions and contents of HIF-1α mRNA and protein all decreased (P < 0.05); mRNA and protein expressions and contents of PHD2 and VHL all decreased in the model group (P < 0.05). Compared with model group, levels of CA125 and cGMP obviously decreased; cAMP levels obviously increased, expressions and contents of HIF-1α mRNA and protein all increased, mRNA and protein expressions and contents of PHD2 and VHL all increased in the WM group and the CM group (P < 0.05). Compared with the CM group, PHD2 protein contents were higher in the WM group (P < 0.05). HIF-1α was negatively correlated with PHD2 (r = -0.799, P = 0.00). HIF-1α was negatively correlated with VHL (r = -0. 625, P = 0.003).

CONCLUSIONSBWHR could effectively treat EM. Its mechanism might be associated with reducing contents of HIF-1α, serum CA125, and plasma cGMP, and up-regulating expressions of PHD2, VHL, and cAMP.

Animals ; Cyclic AMP ; Drugs, Chinese Herbal ; therapeutic use ; Endometriosis ; drug therapy ; metabolism ; Female ; Hypoxia-Inducible Factor 1, alpha Subunit ; metabolism ; Proline ; metabolism ; RNA, Messenger ; Rats ; Rats, Sprague-Dawley ; Up-Regulation ; Yang Deficiency ; drug therapy ; metabolism

Objective To establish a real-time fluorescent quantitative polymerase chain reaction (RT-qPCR) for detection of human Herpesvirus-8 (HHV-8) viral load. Methods pMD19-T recombinant vectors inserted with an open reading frame (ORF) 26 of HHV-8 or β-actin gene were constructed respectively. A sensitive RT-qPCR method was established and optimized. The effectivity of the method was evaluated by determining the HHV-8 viral loads in 30 (formalin fixed, paraffinised)biopsy samples of Kaposi's sarcoma. Results The key factors for optimizing the method included anneal temperature and extension. The standard curve showed that the Ct value of ORF26 and β-actin had a good linear relationship (r2 ＞0.990) with the standard samples. The melt curve and electrophoresis showed the specificity of our study. The sensitivity of this method was very high and the detection rate could reach 100%. The viral loads were significantly higher in patients with classic Kaposi's sarcoma compared to patients with acquired immunodeficiency syndrome-associated Kaposi's sarcoma(69.18 va 8. 63, x2 =7.950,P=0.005).Conclusions The established RT-qPCR method is highly sensitive, which can be used as a routine assay for detecting HHV-8.This system offers a good platform for diagnosing other causative organism.