A method based on gas chromatography-mass spectrometry (GC-MS) was established to analyze the changes of intracellular metabolites and study the toxic mechanisms of different concentrations of particulate matter (PM2.5) effecting the lung tissues in mice.Nasal drip experiments of PM2.5 suspensions (0, 7.5, 20.0, 37.5 g/L) for mice were carried out, and the intracellular metabolites in lung tissues were extracted, pretreated and analyzed.Principal component analysis (PCA) and partial least-squares discriminant analysis (PLS-DA) were employed for pattern recognition, and an obvious distinction among different conditions was found.According to the PLS-DA loading diagram and variable important factor (VIP) value, 7 kinds of potential biomarkers, alanine, valine, leucine, ornithine, fumaric acid, citric acid and purine (p<0.01), were determined with significant differences between four different concentrations of PM2.5.Metabolic pathway analysis indicated that the oxidative stress reactions were enhanced, and the TCA cycle and the purine metabolism in lung cells were restrained after dripping PM2.5 to the lung tissues in mice.This study could provide a new perspective and theoretical basis for the further analysis on toxic mechanisms by PM2.5.

Objective To investigate the clinical value and safety of thoracoscopic lung biopsy in the diagnosis of diffuse parenchymal lung diseases. Methods 35 patients with diffuse parenchymal lung disease underwent thoraco-scopic lung biopsy were reviewed in order to obtain clinical and pathological data. Results 31 cases were diagnosed by pathology, and the total positive diagnostic rate was 88.6 % (31/35), 10 cases as usual interstitial pneumonial (UIP), 6 cases as Tuberculosis, 4 cases as alveolar cell carcinoma, 3 cases as nonspecific interstitial pneumonia (NSIP), 3 cases as crypto-genieorganizingpneumonia (COP), 2 cases as pulmonary alveolar proteinosis (PAP), 1 case as Wegener's granulomatosis (WG), 1 case as acute interstitial pneumonia (AIP), 1 case as lymphangioleiomyomatosis (LAM). 3 cases (8.6 %) were occurred with postoperative complications, 2 cases as pulmonary infection combined with respiratory failure, 1 case as idiopathic pulmonary fibrosis with acute exacerbation, and 2 cases (5.7 %) were complicated with death. Conclusions Thoracoscopic lung biopsy is a safe and effective method which helps final di-agnosis of diffuse parenchymal lung disease.

ObjectiveTo explore the clinical therapeutic effect and safety of treating the vertebral artery type cervical spondylosis with rotational manipulation.Methods180 patients with vertebral artery type cervical spondylosis were treated by rotational manipulation.ResultsBy follow-up, 89 patients were evaluated as excellent, 73 as good and 18 as fair. The total rate of excellent and good results was 81%.ConclusionRotational manipulation is an effective method. The correct diagnosis and indication are keys to take good treatment results and safety.

Colon, Sigmoid/surgery* ; Colostomy ; Humans ; Ostomy ; Prolapse ; Surgical Stomas

Burns ; etiology ; physiopathology ; surgery ; Diabetes Mellitus ; Female ; Humans ; Hyperbaric Oxygenation ; Knee Injuries ; surgery ; Middle Aged ; Negative-Pressure Wound Therapy ; Patellar Ligament ; injuries ; Postoperative Complications ; prevention & control ; Skin Transplantation

This study was aimed to verify the effects of staged sequential therapy on expressions of matrix metalloproteinase-9 (MMP-9) and its inhibitor TIMP-1 within lung tissues in asthmatic rats with the airway remodeling, by applying a series of tests such as the immunohistochemistry, western blot and real-time fluorescent quantitative PCR. SD rats were randomly divided into 7 groups, which were the asthmatic group (Group X), the normal group (Group Z), the No. 1 sequential therapy group (Group A1), the No. 2 sequential therapy group (Group A2), the No. 3 sequential therapy group (Group A3), the montelukast group (Group M), and the budesonide group (Group B). The asthmatic model was established in each group except Group Z, by sensitization with both ovalbumin (OVA) and aluminium hydroxide via injection at the 1st, 8th and 15th day in a 22-day duration, followed by OVA aerosol inhalation every other day for 8 weeks for asthma activation. At the 8th day after the asthmatic model was established, Group A1 was orally given Ma-Xing Er-Chen Tang (MXECT) during acute phase while given normal saline (NS) during catabasis and stable phase; Group A2 was given MXECT during acute phase, and given modified Jin-Shui Liu-Jun Jian (JSLJJ) during catabasis as well as given NS during stable phase; Group A3 was given MXECT during acute phase, and given modified JSLJJ during catabasis as well as given Liu-Wei Di-Huang (LWDH) Powders during stable phase;Group M was given salbutamol via aerosol inhalation after stimulation, while orally given montelukast during catabasis and stable phase; Group B was given salbutamol via aerosol inhalation after stimulation, while given inhaled budesonide during catabasis and stable phase; Group X was given NS. After the 7-week intervention, the immunohistochemistry, western blot and real-time quantitative PCR were applied to analyze the location and quantitative expression of MMP-9 and TIMP-1, so as to find out the biological mechanism on expressions of MMP-9 and TIMP-1 in lung tissues of asthmatic rats from molecular levels to gene levels. The results of immunohistochemistry, western blot and real-time fluorescent quantitative PCR showed as follows. Compared with Group Z, the contents of MMP-9 and TIMP-1 increased significantly within lung tissues in Group X. Compared with Group X, the contents of MMP-9 and TIMP-1 decreased within lung tissues of asthmatic rats in each treatment group. It was concluded that the expression of MMP-9 and TIMP-1 elevated during asthma. TCM staged sequential therapy can regulate the ratio between MMP-9 and its inhibitor so as to block the airway remodeling, by decreasing the expression of MMP-9 and its inhibitor within lung tissues in asthmatic rats. This is one of the important action mechanisms.

Objective To investigate the effect of hydroxyethyl starch (HES) 130/0.4 on intraabdominal hypertension (IAH) and inflammatory cytokines in early stage of severe acute pancreatitis (SAP).Methods Clinical data of 55 case of SAP with IAH from Nov 2007 to Oct 2013 in Pancreas Surgery Department of Wuhan Union Hospital were analyzed retrospectively.All patients received conventional treatment without operation.According to the method of fluid resuscitation,patients were divided into treatment group (n =24) and control group (n =31).In treatment group,patients received ringer solution plus 6％ HES 130/0.4 for fluid resuscitation,and patients in control group received only ringer solution for fluid resuscitation.The IAP level,APACHE Ⅱ score and serum inflammatory cytokine from day 1 to 8 were measured.Results The baseline data between the two groups were comparable.The IAP level was significantly lower in treatment group than that in control group from day 5 to day 8 [(10.2 ±2.9),(8.8 ±2.9),(7.9 ± 2.5),(6.9±2.6)mmHg vs (11.9±2.7),(10.5±2.7),(9.5±2.4),(8.6±2.5)mmHg,1 mmHg=0.133 kPa,respectively],and the difference between the two groups was statistically significant (P ＜0.05).There was no significant difference in APACHE Ⅱ score between the two groups,but the decline of APACHE Ⅱ score from baseline (△APACHE Ⅱ score) was more significant in treatment group (P ＜0.05).The serum IL-1 and IL-8 level in treatment group at day 8 was lower than that in control group [(15.1 ± 13.7) μg/L vs (23.6 ± 13.5) μg/L,(11.2 ± 12.8) μg/L vs (23.8 ± 27.9) μg/L,respectively],and the difference between the two groups was statistically significant (P ＜ 0.05).And the serum TNF-α level in treatment group at day 4 and day 8 was lower than that in control group [(31.9 ± 12.1) μg/L vs (43.4 ± 22.4) μg/L,(24.2 ± 12.8) μg/L vs (35.1 ± 15.3) μg/L],and the difference between the two groups was statistically significant (P ＜ 0.05).Conclusions Early fluid resuscitation with HES 130/0.4 and ringer solution relieves IAH,reduces APACHE Ⅱ score and down-regulates IL-1,IL-8 and TNF-α level.

Atractylodis Macrocephalae Rhizoma and Atractylodis Rhizoma were widely used in strengthening spleen under different disease conditions, and were easily and often misused each other. Therefore, DNA barcode was used to distinguish Atractylodis Macrocephalae Rhizoma and Atractylodis Rhizoma from their adulterants to ensure the safe use. The sequence lengths of ITS2 of Atractylodes macrocephala, Atractylodis Rhizoma (A. lancea, A. japonica and A. coreana) were both 229 bp. Among the ITS2 sequences of A. macrocephala, only one G/C transversion was detected at site 98, and the average GC content was 69.42%. No variable site was detected in the ITS2 sequences of A. lancea. The maximum K2P intraspecific genetic distances of both A. japonica and A. coreana were 0.013. The maximum K2P intraspecific genetic distances of A. macrocephala, A. lancea, A. japonica and A. coreana were less than the minimum interspecific genetic distance of adulterants. The ITS2 sequences in each of these polytypic species were separated into pairs of divergent clusters in the NJ tree. DNA barcoding could be used as a fast and accurate identification method to distinguish Atractylodis Macrocephalae Rhizoma, Atractylodis Rhizoma, from their adulterants to ensure its safe use.
Atractylodes ; classification ; genetics ; DNA Barcoding, Taxonomic ; methods ; DNA, Plant ; genetics ; DNA, Ribosomal Spacer ; genetics ; Drug Contamination ; prevention & control ; Drugs, Chinese Herbal ; chemistry ; classification ; Molecular Sequence Data ; Phylogeny ; Quality Control ; Rhizome ; classification ; genetics

No abstract available.
Gastroenteritis ; Models, Theoretical ; Prevalence

No abstract available.
Gastroenteritis ; Models, Theoretical ; Prevalence