Abstract：
BACKGROUND:Based on previous studies on the blocking effect of Chinese tea in the formation of N-nitroso compounds in rats and humans, experiments were carried out to study the effects of Chinese tea on the occurrence of esophageal tumors induced by N-nitrosomethylbenzylamine (NMBzA) in rats. METHODS:In the first experiment, rats were given two precursors of NMBzA, i.e., sodium nitrite and methyl benzylamine, p.o. After 12 weeks, the incidence of esophageal tumors was 95%. However, in the five groups of tea (green tea, jasmine tea, black tea, and oolong tea)-treated rats, the incidences were only 5-19%. In the second experiment, preformed NMBzA was administered to rats. RESULTS:The incidences of esophageal tumors in the five tea-treated groups were 42-67%, while in the positive control group, without tea, the incidence was 90%. Histopathological examination showed the same protective effects of tea treatment. In a separate study, a significant reduction of O6-methylguanine (MeG) and the ratio of O6-MeG to N7-MeG was observed in rats treated with oolong tea and jasmine tea.
journal_name
Prev Medjournal_title
Preventive medicineauthors
Chen Jdoi
10.1016/0091-7435(92)90046-ksubject
Has Abstractpub_date
1992-05-01 00:00:00pages
385-91issue
3eissn
0091-7435issn
1096-0260journal_volume
21pub_type
杂志文章abstract：OBJECTIVE:1) To determine the influenza vaccination coverage required to establish herd immunity, and 2) to assess whether the percentages of vaccination coverage proposed and those registered in the United States and Europe are sufficient to establish herd immunity. METHODS:The vaccination coverage required to establ...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2012.02.015
更新日期：2012-07-01 00:00:00
abstract：:Men who have sex with men and women (MSMW) compose a subset of men who have sex with men (MSM) and represent an estimated 35% of MSM. Research on the HIV risk behaviors of MSMW has largely focused on their behaviors in comparison to men who have sex with men only (MSMO). Results suggest that compared to MSMO, MSMW are...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2017.04.024
更新日期：2017-07-01 00:00:00
abstract：:Because of remarkable advances in the treatment of preterm birth, physicians increasingly encounter adult patients who were born preterm. However, research now shows that improved early survival may come at the expense of future health risks, including increased respiratory, cardiovascular, and kidney disease, diabete...
journal_title：Preventive medicine
pub_type： 信件
doi：10.1016/j.ypmed.2016.08.024
更新日期：2016-10-01 00:00:00
abstract：:Excellent medication adherence contributes to decreases in morbidity, mortality, and health care costs. Although researchers have tested many interventions to increase adherence, results are sometimes conflicting and often unclear. This systematic review applied meta-analytic procedures to integrate primary research t...
journal_title：Preventive medicine
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.ypmed.2017.03.008
更新日期：2017-06-01 00:00:00
abstract：:Patterns of cigarette smoking in Switzerland were analyzed on the basis of sales data (available since 1924) and national health surveys conducted in the last decade. There was a steady and substantial increase in cigarettes sales up to the early 1970s. Thereafter, the curve tended to level off around an average value...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/0091-7435(88)90090-4
更新日期：1988-11-01 00:00:00
abstract：:Airbnb hosts rent their homes to guests as an alternative to traditional hospitality settings. Airbnb venues are not uniformly regulated for allowing smoking or requiring fire-safety amenities. This study quantified the reported prevalence of fire-safety amenities in 413,339 Airbnb venues that allow smoking in 43 citi...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2019.02.021
更新日期：2019-06-01 00:00:00
abstract：:More physical activity (PA) and less screen time (ST) are positively associated with mental health in adolescents; however, research is limited by short-term designs and the exclusion of ST when examining PA. We examined: (a) changes in PA, ST, symptoms of depression, and symptoms of anxiety over four assessments span...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2016.04.002
更新日期：2016-07-01 00:00:00
abstract：OBJECTIVE:Obesity is the biggest challenge facing preventive medicine. Calorie-labelling has been suggested as a way of changing the architecture of an 'obesogenic' environment without limiting consumer choice. This study examined the effect of calorie-labelling on sales of food items at catering outlets on a city-cent...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2014.07.027
更新日期：2014-10-01 00:00:00
abstract：BACKGROUND:Smokers who identified smoking cessation as the primary activity they could undertake to improve their health were compared with smokers who did not identify smoking cessation. Examined factors included personal characteristics, health status, smoking attitudes and behaviors, and social factors. METHODS:Sub...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1006/pmed.1995.1063
更新日期：1995-07-01 00:00:00
abstract：OBJECTIVE:Women that have a first-degree relative diagnosed with breast cancer at an early age are at increased risk of the disease, yet they often lack information about their personal risk of breast cancer and early detection measures. An intervention to provide objective risk information, reduce worries, and promote...
journal_title：Preventive medicine
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ypmed.2006.07.002
更新日期：2006-11-01 00:00:00
abstract：:The psychosocial environment and especially various psychosocial risks in childhood have been shown to predict later negative health behavior and health problems. In this study, we examined whether various psychosocial factor domains in childhood and adolescence: socioeconomic status, the emotional family environment ...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2016.12.023
更新日期：2017-04-01 00:00:00
abstract：BACKGROUND:Cancer-related health behaviours may be affected by barriers to healthcare seeking and beliefs about cancer. The aim was to assess anticipated barriers to healthcare seeking and beliefs about cancer in a sample of the Danish population and to assess the association with socio-economic position. METHODS:A po...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2014.12.007
更新日期：2015-02-01 00:00:00
abstract：:Primary HPV screening for cervical cancer by HPV mRNA testing (Aptima) was implemented in January 2017, for women ≥30 through 70 years, in the Region of Skåne, Sweden. HPV positive samples underwent cytology assessment, and women with any degree of abnormal cytology were referred for colposcopy. The aim was to audit t...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2019.04.021
更新日期：2019-07-01 00:00:00
abstract：OBJECTIVE:In response to the obesity epidemic, interventions to improve the food environment in corner stores have gained attention. This study evaluated the availability, quality, and price of foods in Philadelphia corner stores before and after a healthy corner store intervention with two levels of intervention inten...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2014.04.009
更新日期：2014-08-01 00:00:00
abstract：:In October 2019, a federal judge ruled that a Philadelphia nonprofit (Safehouse) group's plan to open the first site in the U.S. where people can use illegal opioids under medical supervision does not violate federal Controlled Substances Act, delivering a major setback to Justice Department lawyers who launched a leg...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2020.106070
更新日期：2020-06-01 00:00:00
abstract：:Although digital reports of disease are currently used by public health officials for disease surveillance and decision making, little is known about environmental factors and compositional characteristics that may influence reporting patterns. The objective of this study is to quantify the association between climate...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2017.05.009
更新日期：2017-08-01 00:00:00
abstract：BACKGROUND:Neighborhood safety, green space, walkability, and sociodemographics may influence physical activity and childhood obesity. METHODS:Data on measured height and weight, demographic characteristics, and home ZIP code were collected from year 2004 enrollees in a means-tested preschool program in New York City....
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2013.05.012
更新日期：2013-09-01 00:00:00
abstract：:METHODS. One hundred six smokers seen in a family practice received brief physician advice and a prescription for nicotine gum. Smokers were randomly assigned to pay $20, $6, or $0/box of nicotine gum and followed for 6 months. RESULTS. Decreased cost increased the incidence of obtaining gum, the amount of gum used, a...
journal_title：Preventive medicine
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/0091-7435(91)90046-7
更新日期：1991-07-01 00:00:00
abstract：OBJECTIVE:To assess the prevalence of weight gain among male and female college freshmen. METHODS:Study 1 examined weight change over freshman and sophomore years among 904 students attending a state university in Indiana, from 2002-2004. Study 2 examined weight and BMI change over the freshman year among 382 students...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2008.12.009
更新日期：2009-03-01 00:00:00
abstract：BACKGROUND:This study brings together the fragmentary knowledge on social influence factors related to smoking cessation. An inventory of social influence variables shows six social influence factors. With the exception of descriptive norm, most of these are rarely studied in the context of smoking cessation. METHODS:...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2004.09.040
更新日期：2005-07-01 00:00:00
abstract：OBJECTIVE:To assess the effectiveness of the Melbourne Infant Feeding, Activity and Nutrition Trial (InFANT) Program according to maternal education and age. METHODS:A cluster-randomised controlled trial involving 542 mother/infant pairs from 62 existing first-time parent groups was conducted in 2008 in Melbourne, Aus...
journal_title：Preventive medicine
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ypmed.2013.10.021
更新日期：2014-01-01 00:00:00
abstract：METHODS:A survey of oncology center employees was conducted to determine those factors associated with perceived risk of cancer and compliance with preventive care guidelines. Five hundred six employees participated in the survey. RESULTS:The average perceived absolute risk of developing cancer in the next 20 years wa...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1006/pmed.1994.1042
更新日期：1994-05-01 00:00:00
abstract：OBJECTIVE:To evaluate the effectiveness of the Healthy Directions 2 (HD2) intervention in the primary care setting. METHODS:HD2 was a cluster randomized trial (conducted 3/09-11/11). The primary sampling unit was provider (n=33), with secondary sampling of patients within provider (n=2440). Study arms included: 1) usu...
journal_title：Preventive medicine
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ypmed.2014.03.011
更新日期：2014-07-01 00:00:00
abstract：BACKGROUND:Smoking, diet, and lack of exercise are the top preventable causes of death in the United States. Some 23% of high school students currently smoke and many teens do not meet Healthy People 2010 standards for healthy eating or physical activity. This study examined the relationship between smoking and the con...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2004.10.005
更新日期：2005-06-01 00:00:00
abstract：BACKGROUND:Studies of the relationship between dietary fat intake and serum lipids in young children have yielded inconclusive results. We studied this relationship in 108 Hispanic children ages 4-5 years. METHODS:Four 24-hr recalls approximately 3 months apart and two Willett semiquantitative food frequency questionn...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/0091-7435(91)90023-w
更新日期：1991-03-01 00:00:00
abstract：BACKGROUND:Initiation of sun protection strategies can be promoted, to some extent, by educational efforts, but little is known about the merit of continuing education interventions in sustaining the desired behaviors or adding new behaviors. This prospective study clarifies the choices individuals make among the four ...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/0091-7435(92)90082-s
更新日期：1992-11-01 00:00:00
abstract：BACKGROUND:Despite established links among heavy alcohol consumption, other poor health behaviors, and poor health status, no Canadian study has specifically addressed the relationship between drinking and the use of preventive healthcare services. This study examines the relationship between drinking and female-specif...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/s0091-7435(03)00141-5
更新日期：2003-10-01 00:00:00
abstract：BACKGROUND:Nutrition education tailored to individual characteristics of people might be more effective than general nutrition education. Nowadays, the use of computers makes individualized feedback available for larger groups. METHODS:The impact of tailored nutrition information on changes in fat, vegetable, and frui...
journal_title：Preventive medicine
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1006/pmed.1996.0052
更新日期：1996-05-01 00:00:00
abstract：OBJECTIVES:This study explores the predisposing, enabling, and need-based factors associated with parents' or guardians' decision to have their child initiate, continue, and complete the human papillomavirus (HPV) vaccine. METHODS:Parents and guardians of children between the ages of 9 and 17years who completed the 20...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2016.01.010
更新日期：2016-04-01 00:00:00
abstract：OBJECTIVE:We investigated the impact of mental health on the decline in higher activities of daily living (ADL) defined in terms of social role performance (SR, the highest ADL), intellectual activity (IA), and instrumental ADL (IADL), as well as the onset of basic ADL disability. METHODS:Six hundred older adults were...
journal_title：Preventive medicine
pub_type： 杂志文章
doi：10.1016/j.ypmed.2007.12.007
更新日期：2008-05-01 00:00:00
