Adolescent ; Anti-Asthmatic Agents ; therapeutic use ; Asthma ; blood ; drug therapy ; Child ; Child, Preschool ; Female ; Glucocorticoids ; therapeutic use ; Humans ; Infant ; Interleukin-23 ; blood ; Male

This experiment was based on a full-length SAMDC sequence from the drought stress induced cDNA library of Cleistogenes songorica.Two methods,absolute quantification and relative quantification,were used to analyze the gene expression under different tissue and drought stress treatment by real-time quantitaive PCR experiments and were compared each other,while CsSAMDC gene was used as a case.Leaves and roots tissue were sampled from the plants at 0,4,6,8,and 10 d of drought stress and 1 and 4 d after rewatering.The 2-CT method was used to analyze the relative changes in gene expression from quantitative real-time PCR experiments.A standard curve was generated by the purified plasmid DNA.The primer concentration in the realtime PCR was optimized.All absolute quatification data were normalized by the normalization factor from the most stable house-keeping genes in C.songorica.Relative quantification results using 2-CT method showed that CsSAMDC transcripts increased 5.93?0.71 fold in roots,down regulated 0.62?0.13 fold in leaves,under drought stress.Absolute quantification results showed that CsSAMDC transcripts up-regulated in roots significantly under drought stress as 1ong as 8 to 1 0 days after drought stress,while down-regulated in both roots and leaves after drought stress within 6 days and 1 to 4 days after rewatering,compared with control.CsSAMDC transcipt showed similar tendency of gene expression compared by using relative and absolute quantification methods.

BACKGROUND: Early withdrawal of invasive mechanical ventilation (IMV) followed by noninvasive MV (NIMV) is a new strategy for changing modes of treatment in patients with acute exacerbations of chronic obstructive pulmonary disease (AECOPD) with acute respiratory failure (ARF). Using pulmonary infection control window (PIC window) as the switch point for transferring from invasive to noninvasive MV, the time for early extubation can be more accurately judged, and therapy efficacy can be improved. This study aimed to prospectively investigate the clinical effectiveness of fiberoptic bronchscopy (FOB) in patients with AECOPD during sequential weaning of invasive-noninvasive MV. METHODS: Since July 2006 to January 2011, 106 AECOPD patients with ARF were treated with comprehensive medication and IMV after hospitalization. Patients were randomly divided into two groups according to whether fiberoptic bronchoscope is used (group A, n=54) or not (group B, n=52) during sequential weaning from invasive to noninvasive MV. In group A, for sputum suction and bronchoalveolar lavage (BAL), a fiberoptic bronchoscope was put into the airway from the outside of an endotracheal tube, which was accompanied with uninterrupted use of a ventilator. After achieving PIC window, patients of both groups changed to NIMV mode, and weaned from ventilation. The fol owing listed indices were used to compare between the groups after treatment: 1) the occurrence time of PIC, the duration of MV, the length of ICU stay, the success rate of weaning from MV for the first time, the rate of reventilation and the occurrence rate of ventilator-associated pneumonia (VAP); 2) the convenience and safety of FOB manipulation. The results were compared using Student's t test and the Chi-square test. RESULTS: The occurrence time of PIC was (5.01±1.49) d, (5.87±1.87) d in groups A and B, respectively (P<0.05); the duration of MV was (6.98±1.84) d, (8.69±2.41) d in groups A and B, respectively (P<0.01); the length of ICU stay was (9.25±1.84) d, (11.10±2.63) d in groups A and B, respectively (P<0.01); the success rate of weaning for the first time was 96.30％, 76.92％ in groups A and B, respectively (P<0.01); the rate of reventilation was 5.56％, 19.23％ in groups A and B, respectively (P<0.05); and the occurrence rate of VAP was 3.70％, 23.07％ in groups A and B, respectively (P<0.01). Moreover, it was easy and safe to manipulate FOB, and no side effect was observed. CONCLUSIONS: The application of FOB in patients with AECOPD during sequential weaning of invasive-noninvasive MV is effective in ICU. It can decrease the duration of MV and the length of ICU stay, increase the success rate from weaning MV for the first time, reduce the rate of reventilation and the occurrence rate of VAP. In addition, such a method is convenient and safe in patients of this kind.

Multi-component traditional Chinese medicines are an innovative research mode for traditional Chinese medicines. Currently, there are many design methods for developing multi-component traditional Chinese medicines, but their common feature is the lack of effective connection of the traditional Chinese medicine theory. In this paper, the authors discussed the multi-component traditional Chinese medicine design methods based on medicinal property combination modes, provided the combination methods with the characteristics of traditional Chinese medicine for the prescription combinations, and proved its feasibly with hypertension cases.
Animals ; Antihypertensive Agents ; administration & dosage ; chemistry ; Blood Pressure ; drug effects ; Drug Combinations ; Drug Therapy ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; Humans ; Hypertension ; drug therapy ; physiopathology ; Medicine, Chinese Traditional ; Rats

OBJECTIVEHuman cytomegalovirus (HCMV) displays genetic polymorphisms. Nineteen open reading frames (ORFs, UL133-UL151) found in the Toledo strain of HCMV and other low-passage clinical isolates may be essential for viral infection. This study aimed to analyze the polymorphism of HCMV UL134 gene in clinical isolates and explore the relationship between the polymorphism and HCMV infection.

METHODSPCR was performed to amplify entire UL134 region in 32 clinical isolates, which had been proven as HCMV-DNA positive by FQ-PCR. PCR products were sequenced.

RESULTSAll of the 32 isolates were amplified and sequenced successfully. HCMV UL134 gene was highly conserved in the clinical isolates. UL134 ORF and its predicted protein in the clinical strains displayed 96.4%-98.3% nucleotide identity and 92.7%-94.9% amino acid identity respectively compared to those in the Toledo strain. A new posttranslational modification site, sulfationcamp (SUL) site, was found in UL134 protein of all of the clinical isolates except 35j.

CONCLUSIONSHCMV UL134 gene in clinical isolates was highly conserved. No substantial relation was found between UL134 gene and HCMV infectious diseases.

Cytomegalovirus ; genetics ; Cytomegalovirus Infections ; virology ; Genes, Viral ; Humans ; Open Reading Frames ; Polymerase Chain Reaction ; Polymorphism, Genetic ; Viral Proteins ; genetics

OBJECTIVETo investigate the polymorphism of human cytomegalovirus (HCMV) UL150 open reading frame (ORF) in low-passaged clinical isolates, and to study the relationship between the polymorphism and different pathogenesis of congenital HCMV infection.

METHODSPCR was performed to amplify the entire HCMV UL150 ORF region of 29 clinical isolates, which had been proven containing detectable HCMV-DNA using fluorescence quantitative PCR. PCR amplification products were sequenced directly, and the data were analyzed.

RESULTSTotally 25 among 29 isolates were amplified, and 18 isolates were sequenced successfully. HCMV UL150 ORF sequences derived from congenitally infected infants were high variability. The UL150 ORF in all 18 clinical isolates shifted backward by 8 nucleotides leading to frame-shift, and contained a single nucleotide deletion at nucleotide position 226 compared with that of Toledo strain. The nucleotide diversity was 0.1% to 6.8% and the amino acid diversity was 0.2% to 19.2% related to Toledo strain. However, the nucleotide diversity was 0.1% to 6.4% and amino acid diversity was 0.2% to 8.3% by compared with Merlin strain. Compared with Toledo, 4 new cysteine residues and 13 additional posttranslational modification sites were observed in UL150 putative proteins of clinical isolates. Moreover, the UL150 putative protein contained an additional transmembrane helix at position of 4-17 amino acid related to Toledo.

CONCLUSIONHCMV UL150 ORF and deduced amino acid sequences of clinical strains are hypervariability. No obvious linkage between the polymorphism and different pathogenesis of congenital HCMV infection is found.

Amino Acid Sequence ; Base Sequence ; Cytomegalovirus ; genetics ; isolation & purification ; Cytomegalovirus Infections ; congenital ; virology ; DNA, Viral ; genetics ; Genes, Viral ; Genetic Variation ; Humans ; Infant ; Infant, Newborn ; Molecular Sequence Data ; Open Reading Frames ; Polymorphism, Single Nucleotide ; Sequence Homology, Amino Acid ; Viral Proteins ; chemistry ; genetics

OBJECTIVETo investigate the variability of human cytomegalovirus (HCMV) UL138 open reading frame (ORF) in clinical strains.

METHODSHCMV UL138 ORF was amplified by polymerase chain reaction (PCR) and PCR amplification products were sequenced directly, and the data were analyzed in 19 clinical strains.

RESULTSUL138 ORF in all 30 clinical strains was amplified successfully. Compared with that of Toledo strain, the nucleotide and amino acid sequence identities of UL138 ORF in all strains were 97.41% to 99.41% and 98.24% to 99.42%, respectively. All of the nucleotide mutations were substitutions. The spatial structure and post-translational modification sites of UL138 encoded proteins were conserved. The result of phylogenetic tree showed that HCMV UL138 sequence variations were not definitely related with different clinical symptoms.

CONCLUSIONHCMV UL138 ORF in clinical strains is high conservation, which might be helpful for UL138 encoded protein to play a role in latent infection of HCMV.

Amino Acid Sequence ; Cytomegalovirus ; classification ; genetics ; Cytomegalovirus Infections ; congenital ; genetics ; Humans ; Molecular Sequence Data ; Open Reading Frames ; Phylogeny ; Protein Structure, Secondary ; Sequence Alignment ; Viral Proteins ; chemistry ; genetics

Objective To investigate the radiosensitizing effects of dihydroartemisinin(DHA)on human HeLa cells of cervical cancer irradiated by X rays.Methods Cell growth kinetics was determined using MTF assay.Cell survival was analyzed by elonogenic assay.The change of cell cycle and apeptosis was measured by flow cytometry.Results Dihydroartemisinin inhibited the growth of HeLa cells of human cervical cancer and showed a dose-dependent and time-dependent manner.Dihydroartemisinin(20 μmol/L)showed the radiosensitizing effects on HeLa cells,and the sensitizing enhancement ratio(SER)was 1.47.Dihydroartemisinin abrogated radiation-induced G2 arrest of the tested HeLa cells,the G2 ratio of medicine + radiation group dechned from 73.58% to 48.31%.Dihydroartemisinin enhanced the apoptosis of HeLa cells by X-irradiation,the apoptosis rates of medicine + radiation group significantly increased from 29.46%,48.04%,70.21% to 45.79%,66.36% and 79.58%,respectively for 2,4 and 6 Gy.Conclusions Dihydroartemisinin could increase the radiesensitivity of HeLa cells of human cervical cancer.Abrogation of radiation-induced C2 arrest could be part of the mechanism.

Objective To improve the diagnosis level of solitary bone plasmacytoma (SBP) through analysing the clinical characteristics and therapy of this disease. Methods The clinical data of 18 cases were retrospectively analysis since 1999 in five hospitals, the clinical characteristics and therapeutic effect was summarized. Results The average age of 18 cases is 54.2 year (35-78), male were 1.6 times than female. 8 of 10 patients survived for 1-10 year after chemoradiotherapy, 2 of them progressed to multiple myeloma (MM)and died. 5 of 8 patients survived after only chemotherapy or radiotherapy. There were 11 cases of all patients in continue complete remission (CCS), the average CCS time was 47.3 months. Conclusion SBP is a type low-grade malignant tumor. Chemotherapy and radiotherapy is the main therapy. The patients can gain satisfactory prognosis with chemoradiotherapy, part of them can progress to MM.

ObjectiveTo investigate the correlation between current and therapeutic effect of block myoelectricity fixed Botulinum Toxin A(BTX-A) injection in cerebral palsy.Methods15 children with spastic cerebral palsy were treated with BTX-A block injection under block myoelectricity fixing.The dose of BTX-A was identified with the weight of the child and the Modified Ashworth Scale.The correlation between current and period in effect was analyzed.ResultsThere was negative correlation between current and period in effect(r=-0.769,P=0.01).ConclusionThe BTX-A should be injected where the fixed current is less.