Wednesday, September 14, 2011

Intake of Probiotic Food and Risk of Preeclampsia in Primiparous Women

Penilitian kohort di Norwegia mendapatkan bahwa asupan probiotik setiap hari berhubungan dengan penurunan risiko pre-eklampsia pada primipara
Am J Epidemiol published online 5 August 2011 ©
Intake of Probiotic Food and Risk of Preeclampsia in Primiparous Women: The Norwegian Mother and Child Cohort Study.
Anne Lise Brantsæter, Ronny Myhre, Margaretha Haugen et al.
 
Abstract

Probiotics have been suggested to modify placental trophoblast inflammation, systemic inflammation, and blood pressure, all potentially interesting aspects of preeclampsia. The authors examined the association between consumption of milk-based probiotic products in pregnancy and development of preeclampsia and its subtypes. The study was performed in the Norwegian Mother and Child Cohort Study by using a prospective design in 33,399 primiparous women in the years 2002–2008. The intake of milk-based products containing probiotic lactobacilli was estimated from a self-reported food frequency questionnaire. Preeclampsia diagnoses were obtained from the Norwegian Medical Birth Registry. Intake of probiotic milk products was associated with reduced risk of preeclampsia. The association was most prominent in severe preeclampsia (adjusted odds ratio (OR) = 0.79, 95% confidence interval (CI): 0.66, 0.96). With probiotic intakes divided into categories representing no, monthly, weekly, or daily intake, a lower risk for preeclampsia (all subtypes) was observed for daily probiotic intake (OR = 0.80, 95% CI: 0.66, 0.96). Lower risks for severe preeclampsia were observed for weekly (OR = 0.75, 95% CI: 0.57, 0.98) and daily (OR = 0.61, 95% CI: 0.43, 0.89) intakes. These results suggest that regular consumption of milk-based probiotics could be associated with lower risk of preeclampsia in primiparous women.

Tuesday, September 13, 2011

Effect of a Dietary Portfolio of Cholesterol-Lowering Foods


JAMA 306(8):831-839, 24 August 2011 © 2011 American Medical Association
Effect of a Dietary Portfolio of Cholesterol-Lowering Foods Given at 2 Levels of Intensity of Dietary Advice on Serum Lipids in Hyperlipidemia.
David J. A. Jenkins, Peter J. H. Jones, Benoit Lamarche, et al.
 
Context Combining foods with recognized cholesterol-lowering properties (dietary portfolio) has proven highly effective in lowering serum cholesterol under metabolically controlled conditions.
Abstract
 
Objective To assess the effect of a dietary portfolio administered at 2 levels of intensity on percentage change in low-density lipoprotein cholesterol (LDL-C) among participants following self-selected diets.
Design, Setting, and Participants A parallel-design study of 351 participants with hyperlipidemia from 4 participating academic centers across Canada (Quebec City, Toronto, Winnipeg, and Vancouver) randomized between June 25, 2007, and February 19, 2009, to 1 of 3 treatments lasting 6 months.
Intervention Participants received dietary advice for 6 months on either a low− saturated fat therapeutic diet (control) or a dietary portfolio, for which counseling was delivered at different frequencies, that emphasized dietary incorporation of plant sterols, soy protein, viscous fibers, and nuts. Routine dietary portfolio involved 2 clinic visits over 6 months and intensive dietary portfolio involved 7 clinic visits over 6 months.
Main Outcome Measures Percentage change in serum LDL-C.
Results In the modified intention-to-treat analysis of 345 participants, the overall attrition rate was not significantly different between treatments (18% for intensive dietary portfolio, 23% for routine dietary portfolio, and 26% for control; Fisher exact test, P = .33). The LDL-C reductions from an overall mean of 171 mg/dL (95% confidence interval [CI], 168-174 mg/dL) were −13.8% (95% CI, −17.2% to −10.3%; P < .001) or −26 mg/dL (95% CI, −31 to −21 mg/dL; P < .001) for the intensive dietary portfolio; −13.1% (95% CI, −16.7% to −9.5%; P < .001) or –24 mg/dL (95% CI, −30 to −19 mg/dL; P < .001) for the routine dietary portfolio; and −3.0% (95% CI, −6.1% to 0.1%; P = .06) or −8 mg/dL (95% CI, −13 to −3 mg/dL; P = .002) for the control diet. Percentage LDL-C reductions for each dietary portfolio were significantly more than the control diet (P < .001, respectively). The 2 dietary portfolio interventions did not differ significantly (P = .66). Among participants randomized to one of the dietary portfolio interventions, percentage reduction in LDL-C on the dietary portfolio was associated with dietary adherence (r = −0.34, n = 157, P < .001).
Conclusion Use of a dietary portfolio compared with the low−saturated fat dietary advice resulted in greater LDL-C lowering during 6 months of follow-up.

Monday, September 12, 2011

Red meat consumption and risk of type 2 diabetes

Konsumsi daging merah berhubungan dengan peningkatan risiko diabetes tipe 2.
Mengubah asupan protein dari daging menjadi kacang2an, low fat dairy, dan biji2an menurunkan risiko diabetes tipe 2 sebesar 16-35%

Am J Clin Nutr October 2011 © 2011 American Society for Nutrition
Red meat consumption and risk of type 2 diabetes:
3 cohorts of US adults and an updated meta-analysis. An Pan, Qi Sun, Adam M Bernstein, Matthias B Schulze et al.
Abstract
Background: The relation between consumption of different types of red meats and risk of type 2 diabetes (T2D) remains uncertain.
Objective: We evaluated the association between unprocessed and processed red meat consumption and incident T2D in US adults.
Design: We followed 37,083 men in the Health Professionals Follow-Up Study (1986–2006), 79,570 women in the Nurses' Health Study I (1980–2008), and 87,504 women in the Nurses' Health Study II (1991–2005). Diet was assessed by validated food-frequency questionnaires, and data were updated every 4 y. Incident T2D was confirmed by a validated supplementary questionnaire.
Results: During 4,033,322 person-years of follow-up, we documented 13,759 incident T2D cases. After adjustment for age, BMI, and other lifestyle and dietary risk factors, both unprocessed and processed red meat intakes were positively associated with T2D risk in each cohort (all P-trend <0.001). The pooled HRs (95% CIs) for a one serving/d increase of unprocessed, processed, and total red meat consumption were 1.12 (1.08, 1.16), 1.32 (1.25, 1.40), and 1.14 (1.10, 1.18), respectively. The results were confirmed by a meta-analysis (442,101 participants and 28,228 diabetes cases): the RRs (95% CIs) were 1.19 (1.04, 1.37) and 1.51 (1.25, 1.83) for 100 g of unprocessed red meat and for 50 g of unprocessed red meat, respectively. We estimated that substitutions of one serving of nuts, low-fat dairy, and whole grains per day for one serving of red meat per day were associated with a 16–35% lower risk of T2D.
Conclusion: Our results suggest that red meat consumption, particularly processed red meat, is associated with an increased risk of T2D.