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An important operational aspect of Syringe Exchange Programmes (SEPs) is the venue of service delivery. This report describes the programmatic features of the Sacramento Area Needle Exchange (SANE), an illegal SEP operating in California, USA. SANE utilises “satellite exchangers” to distribute the bulk of its syringes and HIV risk reduction supplies. Advantages of relying primarily on Designated Exchangers (DE) for delivery of SEP services are that it: (1) allows for coverage of a large geographical area; (2) keeps operational cost low; (3) provides syringes to clients who may not want to or cannot use fixed site programmes; (4) limits the possibility of detection of programme personnel and clients by law enforcement. Limitations are that: (1) it is not as conducive as fixed sites to providing a wide range of ancillary services; (2) it may not be optimal for drug users who do not want to be reliant on other people for access to syringes; (3) those who receive services from a satellite exchanger may not derive as much counselling and referral services as direct exchangers. The lack of legal status, political support and adequate funding threatens the programme’s existence.  相似文献   
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J G Kral 《Gastroenterology》1988,95(1):213-215
Intragastric balloons have been suggested as a treatment for severe obesity, a degree of obesity associated with a relatively greater eating disorder or lack of control of energy balance. The premises that 250-500-ml balloons are able to simulate "satiety" in a 1700-ml stomach sufficiently to cause weight loss, that the stomach will not stretch to accommodate such a besoar (with or without ulcerating), and that behavioral modification is cost-effective in weight control in this population have not been corroborated. Experience from gastric restrictive surgery has demonstrated the conceptual failure of gastric satiety as a means of achieving and sustaining weight loss in a substantial percentage of morbidly obese patients. Other methods are needed to reduce the increased morbidity and mortality of severe obesity.  相似文献   
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1 Purpose

Caring for children with autism spectrum disorder (ASD) can be highly demanding and can put significant strain on caregivers. To date, little is known about the extent to which caregivers of children with ASD experience increased levels of stress which may adversely affect health outcomes. The purpose of this secondary analysis was to compare caregivers of children with ASD and caregivers of typically developing children (TDC) in weight status, diet quality, perceived stress related to the parenting role, and functional health and well‐being.

2 Design and methods

Caregivers of 25 children with ASD and 30 TDC completed the 2005 Block Food Frequency Questionnaire, the 36‐item Short Form of the Parenting Stress Index (PSI/SF), and the Short Form Health Survey (SF‐36) and had their heights and weights measured during an onsite visit. Diet quality was assessed using the Healthy Eating Index (HEI)‐2010 and its dietary components and conformance to the 2010 Dietary Guidelines for Americans.

3 Results

ASD caregivers did not differ significantly from TDC caregivers in body mass index or overweight/obesity prevalence (p ≥ .28), even when controlling for covariates. In univariate analyses, ASD caregivers consumed significantly fewer empty calories from solid fats, alcohol, and added sugars than TDC caregivers (= .03), but they did not differ significantly in any other dietary outcomes including nutrient adequacy (p ≥ .10) and mean total HEI scores (p = .20). ASD caregivers, when compared to TDC caregivers, reported significantly greater parenting stress for the subscales difficult child and parent–child dysfunctional interaction as well as total stress (< .001). In addition, 56% of ASD caregivers compared with 6.7% of TDC caregivers showed clinically significant levels of stress (< .0001); a finding which remained statistically significant when controlling for covariates. ASD and TDC caregivers did not differ significantly in any SF‐36 health domains related to functional health and well‐being (p ≥ .10).

4 Practice implications

Despite higher reported levels of stress, ASD caregivers did not differ significantly from TDC caregivers in diet‐ and health‐related outcomes. Nurses and other health professionals should use comprehensive screening tools to assess overall caregiver stress and levels of resilience.  相似文献   
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Obesity and diet affect the incidence and severity of various types of cancer, including colon cancer. It is not known whether obesity, independent of diet, is a risk factor for colon adenocarcinoma. We used azoxymethane (AOM) to induce colon cancer in mature genetically obese male Zucker rats (fa/fa) on low-fat crude diet (LFC, 10% fat) and their lean counterparts (Fa/fa and Fa/fa) on high-fat crude diet (HFC, 40% fat) for three months. At death visible tumors, histopathology, and colonic aberrant crypt (AC) formation were studied by blinded investigators. At death the obese animals were heavier (719 ± 19 g; mean ± sem) than lean animals regardless of diet or genotype (Fa/fa-LFC:451 ± 6 g; Fa/fa-HFC:441 ± 10 g; Fa/Fa-HFC:412 ± 9 g; P < 0.001 vs fa/fa by ANOVA). All AOM-treated rats developed AC, compared to none of the saline-injected controls. Macroscopic adenocarcinoma developed in 8/9 obese rats on LFC (P < 0.001), compared to none in lean rats regardless of diet. Obese rats had significantly more AC (876 ± 116) than any of the lean rats (Fa/fa-LFC:550 ± 99; Fa/fa-HFC:325 ± 37; Fa/Fa-HFC:360 ± 36; P < 0.05 vs fa/fa). We conclude that obesity more than exposure to high-fat diet was associated with colon carcinogenesis in these rats.  相似文献   
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