scholarly journals Increased intake of fruits and vegetables in overweight subjects: effects on body weight, body composition, metabolic risk factors and dietary intake

2016 ◽  
Vol 115 (10) ◽  
pp. 1760-1768 ◽  
Author(s):  
A. Järvi ◽  
B. Karlström ◽  
B. Vessby ◽  
W. Becker

AbstractA diet rich in fruits and vegetables has been associated with several health benefits. However, the effects on body weight (BW) and metabolic markers are not fully known. The present study investigated the effects of increased intake of fruits and vegetables in overweight and obese men and women on dietary habits, anthropometry and metabolic control. In a 16-week controlled intervention, thirty-four men and thirty-four women aged 35–65 years (BMI>27 kg/m2) were randomised to an intervention (IN) or a reference (RG) group. All participants received general dietary advice, and subjects in the IN group received fruits and vegetables for free, of which ≥500 g had to be eaten daily. BW, waist circumference (WC), sagittal abdominal diameter (SAD), plasma insulin, blood glucose, glycated Hb (HbA1c), serum lipids, blood pressure, plasminogen activator inhibitor-1 activity, urinary isoprostane (iso-8-PGF 2α) and serum carotenoids were measured. Diet was assessed using 3-d weighed food records. In all, thirty subjects in the IN group and thirty-two in the RG group completed the intervention. Intake of fruits and vegetables doubled in the IN group, whereas intake of fruits increased in the RG group. Serumα- andβ-carotene concentrations and intakes of folate and vitamin C increased significantly in the IN group. Energy intake, BW, WC and SAD decreased significantly in both groups. Supine systolic blood pressure decreased significantly in the IN group, with no between-group differences. No significant changes were observed for other metabolic markers. Provision of fruits and vegetables led to substantially increased intakes, with subsequent favourable changes in anthropometry and insulin levels, which tended to be more pronounced in the IN group. The observed improvements may, in combination with improved nutritional markers, have health benefits in the long term.

1994 ◽  
Vol 72 (03) ◽  
pp. 434-437 ◽  
Author(s):  
E Bruckert ◽  
A Ankri ◽  
P Glral ◽  
G Turpin

SummaryPlasminogen activator inhibitor type-1 (PAI-1) is a key determinant of the fibrinolytic capacity. Its activity correlates with most of the characteristic features of insulin resistance syndrome, i. e. obesity, high blood pressure and hyperlipidemia.We measured plasma PAI-1 antigen levels in 131 asymptomatic men (aged 44.2 ± 11 years) who had been referred for hyperlipidemia. Those taking medication and those with a secondary hyperlipidemia were excluded.We confirmed the correlation between PAI-1 levels and the following variables: body mass index, blood pressure, triglyceride concentration, and blood glucose and insulin levels before and after an oral glucose tolerance test. We also found a significant and independent correlation between PAI-1 and the concentration of the hepatic enzymes glutamyl transferase, alanine aminotransferase and aspartate aminotransferase.Mild liver abnormalities (presumably steatosis) may thus be one of the factors accounting for high plasma PAI-1 levels in hyperlipidemic patients.


2009 ◽  
Vol 37 (3) ◽  
pp. 595-600 ◽  
Author(s):  
J Liu ◽  
N-L Sun ◽  
J Yang ◽  
J-H Huang

To compare the effects of losartan and atenolol on plasma fibrinolytic parameters and von Willebrand factor (vWF), Chinese subjects with mild-to-moderate hypertension were randomized to receive losartan (50 mg/day; n = 30) or atenolol (50 mg/day; n = 30) for 8 weeks. If target blood pressure (< 140/90 mmHg) was not achieved at week 4, hydrochlorothiazide (12.5 mg/day) was also administered. Plasma levels of tissue plasminogen activator (tPA), plasminogen activator inhibitor-1 (PAI-1) and vWF were determined at baseline and after treatment. Between-group baseline characteristics and blood pressure decrease were comparable. Losartan significantly reduced plasma PAI-1 and vWF and PAI-1/tPA ratio. Atenolol significantly increased plasma tPA, but PAI-1, vWF and PAI-1/tPA ratio were unchanged. In conclusion, losartan, but not atenolol improved the fibrinolytic system and reduced plasma vWF levels in Chinese hypertensives.


1998 ◽  
Vol 95 (4) ◽  
pp. 479-487 ◽  
Author(s):  
Cliona NÍ MHURCHÚ ◽  
Barrie M. MARGETTS ◽  
Viv SPELLER

1.Intervention trials in free-living populations have shown relatively small reductions in risk factors for cardiovascular disease, including lipid levels, and have led some to question whether diet is an effective treatment for hyperlipidaemia. However, behaviour change is a complex process and it is possible that standard intervention methods fail to motivate people sufficiently to comply with dietary advice. 2.This study applied motivational interviewing, a style of behaviour change counselling, to dietary education for people with hyperlipidaemia. One-hundred and twenty-one patients with hyperlipidaemia who had been referred to a hospital dietetic department for dietary advice were randomized to receive either standard or motivational dietary interventions for a period of 3 months. Outcomes assessed included dietary knowledge, stage of change, dietary intakes, lipid levels and body mass indices. 3.From baseline, both methods of dietary intervention resulted in self-reported changes in dietary habits and knowledge, statistically significant reductions in intake of total fat (from 32.8% to 28.4%), saturated fat (from 11.4% to 9.2%) and energy intakes [-239 ;kcal (-999.98 ;kJ)/day], and in body mass indices (-0.45 ;kg/m2). Serum cholesterol did not change significantly in either intervention group. 4.Motivational and standard dietary interventions achieved statistically significant changes in reported dietary knowledge and behaviour, and led to a reduction in body weight, but not serum cholesterol. Whether this lack of effect is real or due to subjects overestimating true dietary change cannot be determined. Change in body weight was associated with a reported change in energy intake; this provides some support for there having been a real change in intake.


Life ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1350
Author(s):  
Mateusz Lejawa ◽  
Kamila Osadnik ◽  
Zenon Czuba ◽  
Tadeusz Osadnik ◽  
Natalia Pawlas

Adipose tissue secretes many regulatory factors called adipokines. Adipokines affect the metabolism of lipids and carbohydrates. They also influence the regulation of the immune system and inflammation. The current study aimed to evaluate the association between markers related to obesity, diabesity and adipokines and metabolically healthy and unhealthy obesity in young men. The study included 98 healthy participants. We divided participants into three subgroups based on body mass index and metabolic health definition: 49 metabolically healthy normal-weight patients, 27 metabolically healthy obese patients and 22 metabolically unhealthy obese patients. The 14 metabolic markers selected were measured in serum or plasma. The analysis showed associations between markers related to obesity, diabesity and adipokines in metabolically healthy and unhealthy obese participants. The decreased level of adipsin (p < 0.05) was only associated with metabolically healthy obesity, not with metabolically unhealthy obesity. The decreased level of ghrelin (p < 0.001) and increased level of plasminogen activator inhibitor-1 (p < 0.01) were only associated with metabolically unhealthy obesity, not with metabolically healthy obesity. The decreased level of adiponectin and increased levels of leptin, c-peptide, insulin and angiopoietin-like 3 protein were associated with metabolically healthy and unhealthy obesity. In conclusion, our data show that metabolically healthy obesity was more similar to metabolically unhealthy obesity in terms of the analyzed markers related to obesity and diabesity.


2005 ◽  
Vol 93 (05) ◽  
pp. 816-819 ◽  
Author(s):  
Roger Lijnen

SummaryPlasminogen activator inhibitor-1 (PAI-1) is the main physiological inhibitor of tissue-type (t-PA) and urokinase-type (u-PA) plasminogen activator. Recent studies in murine models have yielded apparently conflicting data on a potential role of PAI-1 in adipose tissue development and obesity. To reinvestigate this issue, we have rederived PAI-1 deficient (PAI-1-/-) and wild-type (WT) mice and generated true littermates in a 81.25% C57Bl/6: 18.75% 129 SV genetic background. Male 5-week-old PAI-1-/- and WT mice were kept on a high fat diet (20.1 kJ/g) for 15 weeks. Body weight gain was comparable for both genotypes, and at the time of sacrifice total body weights (39 ± 1.1 versus 41 ± 1.2 g) as well as the weights of subcutaneous (SC, 1,520 ± 110 versus 1,480 ± 110 mg) adipose tissue were not significantly different. In contrast, the gonadal (GON, 1,900 ± 43 versus 1,510 ± 86 mg, p < 0.005) tissue mass was larger in PAI-1-/- mice. Plasma levels of insulin, leptin, glucose, triglycerides, total, HDL and LDL cholesterol were comparable for both genotypes. Immunohisto-chemical analysis of SC and GON adipose tissues did not reveal differences in adipocyte size or number between both genotypes, whereas blood vessel density was also comparable for GON fat but lower in SC fat of WT mice. Thus, this study in littermate mice on high fat diet did not reveal an effect of PAI-1 deficiency on body weight, and a differential effect on SC and GON adipose tissue.


2010 ◽  
Vol 104 (12) ◽  
pp. 1250-1257 ◽  
Author(s):  
Lynne A. Kelly ◽  
John J. O’Leary ◽  
Dana Seidlova-Wuttke ◽  
Wolfgang Wuttke ◽  
Lucy A. Norris

SummaryRecent data has shown that hormone therapy (HT) increases the risk of cardiovascular and thromboembolic disease, particularly in users of oral HT. Phytoestrogens are popular alternatives to oestrogen therapy; however, their effects on cardiovascular risk are unknown. We investigated the effect of the phytoestrogen, genistein on the expression of genes and proteins from the haemostatic system in the liver in an ovariectomised rat model. Fifty-nine virgin female Sprague-Dawley rats were fed with soy-free chow supplemented with 17β estradiol (E2) (daily uptake 0.19 or 0.75 mg/kg body weight), or genistein (daily up-take 6 or 60 mg/kg body weight), for three months and compared to soy-free control rats. Gene expression of prothrombin, factor VII, fibrinogen alpha and fibrinogen beta was increased with E2 and genistein compared to the soy-free control group (p<0.001). Genistein increased factor VII significantly more than E2 (p<0.005). Plasminogen mRNA was increased in both treatment groups compared to the soy-free control, with genistein expression significantly higher than E2 (p<0.001). Tissue plasminogen inhibitor (tPA), plasminogen activator inhibitor-1 (PAI-1) and C-reactive protein (CRP) expression were also increased in both groups relative the soy-free control. Results of protein analysis largely concurred with those of the mRNA. Oestrogen receptor β (ERβ) was undetected while oestrogen receptor α (ERα) was detected in each sample group. Genistein can increase the expression of coagulation and fibrinolytic genes. This effect was similar and in some cases higher than 17β estradiol. These results suggest that genistein may not be neutral with respect to the haemostatic system.


2010 ◽  
Vol 22 (2) ◽  
pp. 46
Author(s):  
N King

Background: Exercise is widely promoted as a method of weight management, while the other health benefits are often ignored. The purpose of this study was to examine whether exercise-induced improvements in health are influenced by changes in body weight. Methods:  Fifty-eight sedentary overweight/obese men and women (BMI 31.8 (SD 4.5) kg/m2 ) participated in a 12-week supervised aerobic exercise intervention (70% heart rate max, five times a week, 500 kcal per session). Body composition, anthropometric parameters, aerobic capacity, blood pressure and acute psychological response to exercise were measured at weeks 0 and 12. Results: The mean reduction in body weight was -3.3 (3.63) kg (p<0.01). However, 26 of the 58 participants failed to attain the predicted weight loss estimated from individuals’ exercise-induced energy expenditure. Their mean weight loss was only -0.9 (1.8) kg (p<0.01). Despite attaining a lower-than-predicted weight reduction, these individuals experienced significant increases in aerobic capacity (6.3 (6.0) ml/kg/min; p<0.01), and a decreased systolic (-6.00 (11.5) mmHg; p<0.05) and diastolic blood pressure (-3.9 (5.8) mmHg; p<0.01), waist circumference (-3.7 (2.7) cm; p<0.01) and resting heart rate (-4.8 (8.9) bpm, p<0.001). In addition, these individuals experienced an acute exercise-induced increase in positive mood. Conclusions:  These data demonstrate that significant and meaningful health benefits can be achieved even in the presence


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