Efficacy and safety of endoscopic submucosal tunnel dissection vs endoscopic submucosal dissection for early superficial upper gastrointestinal precancerous lesions and tumors: A meta-analysis.

Objective: Endoscopic submucosal tunnel dissection (ESTD) is a new treatment for superficial upper gastrointestinal precancerous lesions and tumors. However, its safety and efficacy for treating these lesions is still uncertain. This meta-analysis aimed to compare the efficacy and safety of ESTD with those of endoscopic submucosal dissection (ESD) in treating early superficial upper gastrointestinal precancerous lesions and tumors.

[Association of anemia with cognition among senior female in China].

Objective: To explore the relationship between anemia and cognitive function among senior female aged 90 years old and above in longevity regions in China.

Methods: 383 senior female in 5 longevity areas from the Chinese Longitudinal Healthy Longevity Survey (CLHLS) 2008 - 2009 were included in the study. The cognitive function was assessed by mini mental state examination (MMSE) scale.

[Level and effect factors of superoxide dismutase and malondialchehyche of the old people aged 90 and over in longevity regions, China].

Objective: To explore the level and effect factors of superoxide dismutase (SOD) and malondialchelyche (MDA) of the people aged 90 years old and above in longevity regions in China.

Methods: From Xiayi county (Henan province), Zhongxiang county (Hubei province), Mayang county (Hunan province), Foshan county Sanshui district (Guangdong province) and Yongfu county (Guangxi province), the people of hundred-year were selected and numbered. The old people aged 90 - 99 according to the age and sex were appointed by the centenarians' code and 496 people were selected in total.

[Investigation and analysis of plasma trace elements of oldest elderly in longevity areas in China].

Objective: To investigate the levels and differences of plasma selenium, manganese, iron, copper, zinc among oldest elderly in longevity areas in China.

Methods: 446 oldest elderly including 208 centenarians, 238 aged 90 and over, who lived in Xiayi county of Henan province (110 persons), Zhongxiang city of Hubei province (111 persons), Mayang county of Hunan province (60 persons), Sanshui district of Guangdong province (113 persons), Yongfu county of Guangxi Zhuang autonomous region (52 persons) in China, were selected. The contents of plasma selenium, manganese, iron, copper, zinc were detected and compared among these elderly who were classified into different genders, different regions and different age groups.

[Anemia status and its relevant factors among elderly people aged above 80 years old in longevity areas in China].

Objective: To describe the epidemiological characteristics of anemia among elderly people aged 80 years old and above in longevity areas in China and to analyze its relevant factors to the health effects.

Methods: The data used in this study came from the Chinese Longitudinal Healthy Longevity Survey, including all centenarians in 7 longevity areas, as well as randomly selected population aged 40-, 60-, 80- and 90- in the same 7 areas. A total of 1980 subjects enrolled in the study.

[A study on chronic diseases and other related health indicators of centenarians in longevity areas in China].

Objective: To describe chronic diseases and other related health indicators of centenarians, compare these health indicators with other age groups in longevity areas in China.

Methods: Residents who participated in the project of Chinese Longitudinal Healthy Longevity Survey (CLHLS) conducted in 2008 - 2009 were selected from 7 Longevity Areas.2029 people aged 40 and over attended the study from March to June, 2009, including 469 aged 40 and over, 436 aged 60 and over, 346 aged 80 and over, 380 aged 90 and over, 398 centenarians.

Purification of a novel antibacterial short peptide in earthworm Eisenia foetida.

A novel antimicrobial short peptide was purified from earthworm (Eisenia foetida) by a five-step protocol including ammonium sulfate precipitation, ultrafiltration, DE-52 ion exchange chromatography, Sephadex G-10 column chromatography, and C-18 reversed-phase HPLC techniques. The purified peptide was applied to the MALDI-TOP MS to determine the molecular mass and was also subjected to TOF MS-MS analysis to determine the amino acid sequence. As a result, a novel antibacterial peptide, named OEP3121, was obtained, with the molecular mass of 510.