Acetyl-CoA C-Acyltransferase ; deficiency ; Amino Acid Metabolism, Inborn Errors ; diagnosis ; enzymology ; metabolism ; Diagnosis, Differential ; Humans ; Infant ; Isoleucine ; metabolism ; Male

Transverse fracture is the most common in patella fracture and tension band fixation is one of the most effective methods. Surgical wire tension band technique is simple, the use of materials is also simple, but it is not strong and difficult to promote. Kirschner tension band technique can get satisfactory reduction with reliable fixation, but it is easy to complicate with steel wire breakage and Kirschner loosening. Screw tension band technique inherits the traditional advantages of simple manipulation and reliable fixation, also overcomes the disadvantages of early activity limitations caused soft tissue irritation of tension band around knee, the slippage and breakage of internal fixation, and the technique can be popularized generally.
Bone Wires ; Fracture Fixation, Internal ; methods ; Humans ; Patella ; injuries ; surgery ; Stress, Mechanical

Bone Plates ; Female ; Fracture Fixation, Internal ; adverse effects ; Humans ; Hypersensitivity ; etiology ; Middle Aged ; Tibial Fractures ; surgery ; Titanium ; adverse effects

Objective To describe the hemodynamic changes during piggyback liver transplantation (PBLT), and to analyze the hemodynamic correlation with various degrees of cirrhosis according to Childpugh classification. Methods Between March 1999 and June 2004, 180 patients underwent PBLT procedure in our institution, and 95 cases were selected and divided according to Child classification. The intraoperative hemodynamics of different time points were retrospectively analyzed, including mean artery pressure (MAP), heart rate (HR), central vein pressure (CVP) and mean pulmonary artery pressure (MPAP). Results Hemodynamic changes were minimal before and during anhepatic phase in all the patients. At reperfusion, a hemodynamic disturbance occurred featured by decrease of MAP and increase of MPAP. Comparison between different Child class showed that in the Child C group, MAP were lower and HR were higher before new liver phase, while CVP and MPAP were higher during new liver phase. Conclusion Hemodynamic changes were minimal before and during anhepatic phase for PBLT, while they were more severe during reperfusion, and they also correlates with the different Child class before transplantation. The more severe of the cirrhosis before transplantation according to Child classification, the greater hemodynamic changes during the operation.

In this study, the regulatory effects of chlorogenic acid (CGA) on the expression of programmed cell death ligand 1 (PD-L1) in esophageal squamous cell carcinoma (ESCC), as well as the role of interferon γ (IFN-γ), has been discussed using both in vitro and in vivo animal models. ESCC murine model was established according to the standard operating procedures (SOP) of Animal Experiment Center of Institute of Materia Medica, Chinese Academy of Medical Sciences. The expression of PD-L1 in esophageal tissues of murine models was analyzed using the microarray assay. Then, the results were verified by qRT-PCR, Western blot and immunohistochemistry (IHC) staining, the molecular mechanism was explored in KYSE180 and KYSE510 ESCC cells in vitro. The results showed that CGA could suppress the expression of PD-L1 in tumor tissues in murine models significantly, rather than the expression in KYSE180 and KYSE510 ESCC cells in vitro. However, after the pretreatment of IFN-γ, the expression of PD-L1 was significantly increased, then it was down-regulated by CGA in both dose- and time-dependent manner. Meanwhile, the expression of interferon regulatory factor 1 (IRF1), an upstream regulatory factor of PD-L1, was suppressed by CGA in both KYSE180 and KYSE510 pretreated with IFN-γ, which was consistent with the expression of PD-L1. These results indicate that CGA down-regulates the expression of PD-L1 in ESCC via IFN-γ-IRF1 signaling pathway, providing the molecular theoretical basis for exploration of new treatment of ESCC.

Pneumoconiosis is the most common occupational disease in China, which severely endangers people's health. Depending on the inhaled air pollutants, pneumoconiosis is classified as anthracosis, silicosis, asbestosis, etc., among which silicosis is the most common and serious. Silicosis is a systemic, poor prognostic disease characterized by diffuse fibrosis of lung tissue, which is caused by long-term exposure to dust with high levels of free silicon dioxide (SiO₂) in the occupational environment. Appropriate treatment in time is important for the disease. Unfortunately, no effective drugs have been approved to delay or even reverse pulmonary fibrosis caused by SiO₂. This review briefly classifies potent therapeutic drugs and compounds in term of mechanisms, providing the probability for clinical treatment of silicosis.

Objective　To study the effect of portal vein blocking on the permeability of the intestinal mucosa in pigs. Methods　Healthy Rongchang pigs were divided into 3 groups: ① sham operation group(SO), ② portal vein clamping for 45 min group (PVC-45'), ③ portal vein clamping for 60 min group (PVC-60'). Urine lactulose/mannitol(L/M) ratio was measured after portal vein blocking. Results　The L/M ratio was increased significantly (P<0.05) in PVC-45' and 60' groups than in SO group, with that of PVC-60' higher than that of PVC-45' group, but not significantly. Conclusion　The increase of intestinal mucosal permeability after portal vein blocking is an early and important index for the damage of the intestinal mucosa barrier.

The importance and feasibility was analyzed of the teaching BBS for aiding classroom teaching based on campus network. The design, technique, content, advantages and deficiencies were presented of agricultural microbiology teaching BBS. The prospect also was discussed of teaching BBS based on campus network in this paper.

OBJECTIVETo establish a quantity detection method of Streptococcus mutans (Sm) and bacteria and compare the relationship between the number of these bacteria and the prevalence of dental caries in different people.

METHODSWith specific primers for a unique sequence in a 14 kb HaeIII restriction fragment consistently presenting during detecting Sm by chromosomal DNA fingerprints, the total number of Sm and bacteria of 99 saliva samples were detected by real-time polymerase chain reaction (PCR) and statistically analyzed.

RESULTSThe primers were specific for Sm and the minimum detectable level by real-time PCR was 0.1 microg/L. The total number of bacteria in the dental caries and people without caries was 51.4 x 10(8) cell copies/L and 221.6 x 10(8) cell copies/L respectively, in which the ratio of Sm to bacteria was 0.0193 and 0.0059 respectively. The differences were significantly different between the people with dental caries and those without caries in the total number of bacteria and the ratio of Sm to bacteria.

CONCLUSIONSThe primers can be used to detect the Sm by real-time PCR. The ratio of Sm to bacteria was closely associated with the prevalence of dental caries.

Adult ; DNA Primers ; DNA, Bacterial ; analysis ; Dental Caries ; epidemiology ; microbiology ; Female ; Humans ; Male ; Middle Aged ; Prevalence ; Real-Time Polymerase Chain Reaction ; Saliva ; microbiology ; Streptococcus mutans ; genetics ; isolation & purification

OBJECTIVETo develop an electronic system (software) for collecting and analyzing periodontal examination data, and preliminarily evaluate its clinical application.

METHODSThe contents and frame of electronic periodontal examination system were designed based on the aim and requirement of periodontal examination, and the software system was developed under the assistance from computer engineers. The electronic system was implemented for entry, storage, retrieval and output of clinical data and data conversion. A questionnaire survey was performed in 23 periodontists and 20 nurses to evaluate the clinical application of this software.

RESULTSAn electronic periodontal examination system was developed, which was used for entry, storage, retrieval and output of clinical data, and converting data into chart. Most nurses could handle this software after 15 minutes of training. Thirteen nurses and 17 periodontists recognized that clinical work efficiency could be improved by application of this software. Nineteen nurses and all periodontists agreed that this software could meet clinical requirements.

CONCLUSIONSThe electronic periodontal examination system can fulfill clinical requirements and is helpful for clinical treatment and research work.

Humans ; Information Storage and Retrieval ; Periodontal Index ; Software ; Surveys and Questionnaires