Characteristics of early gastric tumors with different differentiation and predictors of long-term outcomes after endoscopic submucosal dissection.

Background: Gastric cancer is a common malignant tumor of the digestive tract, and endoscopic submucosal dissection (ESD) is the preferred treatment for early-stage gastric cancer. The analysis of the epidemiological characteristics of gastric mucosal tumors with different differentiation degrees and the influencing factors of long-term ESD efficacy may have certain significance for revealing the development of gastric cancer and ESD.

Aim: To analyze the features of gastric mucosal tumors at different differentiation levels, and to explore the prognostic factors of ESD.

Leaf lifespan is positively correlated with periods of leaf production and reproduction in 49 herb and shrub species.

Leaf life span and plant phenology are central elements in strategies for plant carbon gain and nutrient conservation. Although few studies have found that leaf life span correlate with the patterns of leaf dynamics and reproductive output, but there have not been sufficient conclusive tests for relationships between leaf life span and plant phenological traits, the forms and strengths of such relationships are poorly understood. This study was conducted with 49 herb and shrub species collected from the eastern portion of the Tibetan Plateau and grown together in a common garden setting.

New insights into leaf and fine-root trait relationships: implications of resource acquisition among 23 xerophytic woody species.

Functional traits of leaves and fine root vary broadly among different species, but little is known about how these interspecific variations are coordinated between the two organs. This study aims to determine the interspecific relationships between corresponding leaf and fine-root traits to better understand plant strategies of resource acquisition. SLA (Specific leaf area), SRL (specific root length), mass-based N (nitrogen) and P (phosphorus) concentrations of leaves and fine roots, root system, and plant sizes were measured in 23 woody species grown together in a common garden setting.

[Development of a predicting model to estimate the probability of malignancy of solitary pulmonary nodules].

Objective: To evaluate the role of (18)F-FDG PET/CT in characterizating solitary pulmonary nodule (SPN) and bone lesions.

Methods: 105 patients with a SPN smaller than 30 mm in axial diameter were recruited for this study. PET/CT images were obtained 60 min after intravenous injection of (18)F-FDG.

Recognition of fibrous dysplasia of bone mimicking skeletal metastasis on 18F-FDG PET/CT imaging.

Purpose: Fibrous dysplasia of bone (FDB) reveals intense 18F-FDG uptake mimicking metastases on 18F-FDG PET/CT. We reviewed sites of FDB revealed by 18F-FDG PET/CT imaging to allow identification of this abnormality.

Materials And Methods: Eleven patients (7 male, 4 female, aged 16-78 years) were evaluated after 55 MBq (0.

EGb761 protects motoneurons against avulsion-induced oxidative stress in rats.

Background: Root avulsion of the brachial plexus causes an oxidative stress reaction in the spinal cord and induces dramatic spinal motoneuron death, while EGb761 is a natural free radical cleaning agent. This study was designed to investigate the protective effects of intraperitoneally injected EGb761 against neural damage following brachial root avulsion.

Methods: The effect of EGb761 on avulsion-induced motoneuron injury was studied in 26 total groups of (n) rats, treated as follows.

[Effects of environmental stress on seedlings root growth and nodulation of leguminous shrubs in the dry valley of Minjiang River].

A field investigation was made to understand the seedlings root nodulation, biomass accumulation, root length, and fine root percentage of Sophora davidii, Indigofera lenticellata and Campylotropis polyantha along an altitudinal gradient on two contrasting sloped hills (north Zongqu and south Jingzhoushan) in the dry valley of Minjiang River. In the meantime, a greenhouse experiment was conducted to study the adaptation responses of 2 month-old S. davidii and C.

[Differentiation of malignant and benign superficial lymph nodes by dual time point 18F-FDG PET].

Objective: To evaluate the value of dual time point 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET) in differentiating malignant and benign superficial lymph nodes.

Methods: Sixty-eight patients with ninety superficial lymph nodes were examined. Whole body 18F-FDG PET imaging was performed one hour (early) after FDG injection and repeated one hour (delayed) later but only for the interesting areas.

[SPECT/CT fusion imaging for the diagnosis of benign and malignant lesions in bones].

Objective: The aim of the study was to evaluate the value of the single photon emission computed tomography/computed tomography (SPECT/CT) fusion imaging in the diagnosis of benign and malignant lesions in bones.

Methods: One hundred and forty one bone lesions of 125 cancer patients, for whom the natures of the lesions were not able to be determined by the 99Tc(m)-MDP whole-body bone scan, were examined by the SPECT, CT and SPECT/CT fusion imaging simultaneously. All of the images were blindly interpreted independently by two experienced nuclear medicine physicians.