scholarly journals Rind from Purple Mangosteen (Garcinia mangostana) Attenuates Diet-Induced Physiological and Metabolic Changes in Obese Rats

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 319
Author(s):  
Oliver D. John ◽  
Peter Mouatt ◽  
Sunil K. Panchal ◽  
Lindsay Brown

The pulp of the purple mangosteen, Garcinia mangostana, is a popular tropical fruit but the rind containing xanthones such as α-mangostin together with procyanidins and anthocyanidins is usually discarded as waste. However, this rind has been used in South-East Asia for diarrhoea, dysentery, skin infections and wounds. As xanthones have reported anti-inflammatory and antioxidant responses, this study has determined the bioactive compounds and evaluated the effects of G. mangostana rind on physiological, metabolic, liver and cardiovascular parameters in rats with diet-induced metabolic syndrome. Rats fed a diet with increased simple sugars and saturated fats developed obesity, hypertension, increased left ventricular stiffness, dyslipidaemia and fatty liver. Administration of G. mangostana rind as 5% of the food to rats with diet-induced metabolic syndrome gave a dose of 168 mg/kg/day α-mangostin, 355 mg/kg/day procyanidins, 3.9 mg/kg/day anthocyanins and 11.8 mg/kg/day hydroxycitric acid for 8 weeks which reduced body weight and attenuated physiological and metabolic changes in rats including decreased abdominal fat deposition, decreased abdominal circumference and whole-body fat mass, improved liver structure and function and improved cardiovascular parameters such as systolic blood pressure, left ventricular stiffness and endothelial function. These responses were associated with decreased infiltration of inflammatory cells, decreased deposition of collagen in both heart and liver and decreased mean adipocyte size in retroperitoneal adipose tissues. We conclude that, in rats with diet-induced metabolic syndrome, chronic intake of G. mangostana rind decreased infiltration of inflammatory cells which decreased physiological, metabolic, liver and cardiovascular symptoms.

2020 ◽  
Vol 9 (9) ◽  
pp. 2797
Author(s):  
Magdalena Wiecek ◽  
Jadwiga Szymura ◽  
Justyna Sproull ◽  
Zbigniew Szygula

Abdominal obesity predominates in menopausal women (MW) and contributes to the development of metabolic syndrome (MetS). It is associated with increased mortality related to cardiovascular disease, diabetes and fatty liver disease. The effects of whole-body cryotherapy (WBC) on body composition and the blood concentration of irisin, interleukin-6 (IL-6) and C-reactive proteins (CRP) in MW with MetS and in healthy women (HW), were assessed. The study included 19 women with MetS (61.53 ± 3.99 y, BMI 30.09 ± 4.98 kg/m2) and 18 HW (60.28 ± 3.63 y, BMI 25.50 ± 2.37 kg/m2) who were subjected to 20 WBC treatments at −130 °C for 3 min daily. In both groups, body mass (BM), BMI, abdominal circumference, triceps skinfold, total fat mass and percentage of leg fat significantly decreased after 20 WBC sessions. Additionally, the percentage of total, trunk and android fat in the MetS group were significantly decreased after 20 WBC applications. Waist circumference (WC) and waist-to-height ratio (WHtR) significantly decreased in both groups, and in the HW group, hip circumference and abdominal skinfold also significantly decreased after 10 WBC and 20 WBC treatments. In both groups, the concentration of plasma irisin significantly increased after 1 WBC and 10 WBC exposures, while the concentration of IL-6 significantly increased only in MetS group after 10 WBC and 20 WBC, and were significantly higher than in HW. CRP concentrations were significantly higher in the MetS group than in HW before 1 WBC, after 1 WBC and 10 WBC sessions, but not after 20. In the MetS group, there were significant negative correlations between the change in irisin level and the changes in WC and BM, and between the level of irisin and the change in percentage of total fat, and significant negative correlations between the change in IL-6 level and changes in WC, waist-to-hip ratio and WHtR. Whole-body cryotherapy, assuming the application of 20 treatments in the series, reduces abdominal obesity in menopausal women indirectly through the secretion of irisin and IL-6, and can be used as adjunctive therapy in the treatment of metabolic syndrome. Our conclusion is limited to menopausal women with low–moderate physical activity for whom its level as well as diet were not changed during the treatment.


Metabolites ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 500
Author(s):  
Ryan du Preez ◽  
Marwan E. Majzoub ◽  
Torsten Thomas ◽  
Sunil K. Panchal ◽  
Lindsay Brown

Caulerpa lentillifera (sea grapes) is widely consumed in South-East Asia as a low-energy food with high contents of vitamins and minerals. This study investigated dried sea grapes containing 16.6% insoluble fibre commercially produced in Vietnam as an intervention. We hypothesised that insoluble fibre is the primary metabolite that will reverse diet-induced metabolic syndrome. Male Wistar rats (n = 48) were randomly allocated to four groups in a 16 week protocol. Two groups were fed either corn starch (C) or high-carbohydrate, high-fat (H) diets for the full 16 weeks. The other two groups received C and H diets for eight weeks and then received C. lentillifera added to these diets for the final eight weeks (CCL and HCL, respectively). High-carbohydrate, high-fat diet-fed rats developed obesity, hypertension, dyslipidaemia, fatty liver disease and increased left ventricular collagen deposition. C. lentillifera supplementation in HCL rats decreased body weight, systolic blood pressure, plasma concentrations of total cholesterol and non-esterified fatty acids, inflammatory cells in heart and liver, and visceral adiposity. The Firmicutes to Bacteroidetes ratio decreased in the gut microbiota of HCL rats. Therefore, C. lentillifera attenuated cardiovascular and metabolic symptoms of metabolic syndrome in rats, possibly by preventing infiltration of inflammatory cells together with modulating gut microbiota.


2012 ◽  
Vol 302 (12) ◽  
pp. E1472-E1482 ◽  
Author(s):  
Hemant Poudyal ◽  
Sunil K. Panchal ◽  
Leigh C. Ward ◽  
Jennifer Waanders ◽  
Lindsay Brown

Age-related physiological changes develop at the same time as the increase in metabolic syndrome in humans after young adulthood. There is a paucity of data in models mimicking chronic diet-induced changes in human middle age and interventions to reverse these changes. This study measured the changes during chronic consumption of a high-carbohydrate (as cornstarch), low-fat (C) diet and a high-carbohydrate (as fructose and sucrose), high-fat (H) diet in rats for 32 wk. C diet feeding induced changes without metabolic syndrome, such as disproportionate increases in total body lean and fat mass, reduced bone mineral content, cardiovascular remodeling with increased systolic blood pressure, left ventricular and arterial stiffness, and increased plasma markers of liver injury. H diet feeding induced visceral adiposity with reduced lean mass, increased lipid infiltration in the skeletal muscle, impaired glucose and insulin tolerance, cardiovascular remodeling, hepatic steatosis, and increased infiltration of inflammatory cells in the heart and the liver. Chia seed supplementation for 24 wk attenuated most structural and functional modifications induced by age or H diet, including increased whole body lean mass and lipid redistribution from the abdominal area, and normalized the chronic low-grade inflammation induced by H diet feeding; these effects may be mediated by increased metabolism of anti-inflammatory n-3 fatty acids from chia seed. These results suggest that chronic H diet feeding for 32 wk mimics the diet-induced cardiovascular and metabolic changes in middle age and that chia seed may serve as an alternative dietary strategy in the management of these changes.


2021 ◽  
Author(s):  
Fumiko Uehara ◽  
Kazuhiro Hori ◽  
Yoko Hasegawa ◽  
Shogo Yoshimura ◽  
Shoko Hori ◽  
...  

BACKGROUND It has been widely recognized that the mastication behaviors are related to the health of the whole body such as lifestyle-related disease. However, many studies were based on subjective questionnaire, or were limited to small-scale research in the laboratory due to the lack of device for measuring mastication behaviors of daily meal objectively. Recently, a small wearable masticatory counter device, called bitescan, for measuring masticatory behavior was developed. This wearable device is designed to assess objective masticatory behavior just by putting on the ear in not only laboratory but also in usual situations. OBJECTIVE This study aimed to compare mastication behaviors in the laboratory with that in daily meals and to clarify the relation between mastication behaviors measured by wearable device and metabolic syndrome (MetS). METHODS Ninety-nine healthy volunteers (50 men and 49 women, 36.4 ± 11.7y) participated in this study. The mastication behaviors i.e. number chews and bite, number of chews per bite, chewing rate were measured using the wearable ear-hung type device. Mastication behaviors during eating a rice ball (100 g) in the laboratory and during usual meals for an entire day were monitored, and the daily energy intake was calculated. Participants’ abdominal circumference, fasting glucose concentration, blood pressure, and serum lipids were also measured. The mastication behaviors in laboratory and in meals for one entire day was compared. The participants were divided into two groups using Japanese criteria for MetS (positive / negative for MetS or each MetS components), and mastication behaviors was compared. RESULTS Mastication behaviors in the laboratory and during daily meals were significantly correlated (number of chews r=.360; P<.001, number of bites r=.493; P<.001, number of chews per bite r=.334; P=.001, chewing rate r=.512; P<.001). Although a positive correlation was observed between the number of chews during the 1-day meals and energy intake (r=.262, P=.009), the number of chews per calorie ingested was negatively correlated with energy intake (r=-.315, P=.002). Eight participants were diagnosed with MetS and 12 with pre-MetS. The number of chews and bites for a rice ball in pre-MetS (+) group was significantly lower than the pre-MetS (-) group (P=.016, P=.027, respectively). Additionally, these scores for the positive abdominal circumference, and blood pressure subgroup were also less than the counterpart groups (P=.006, P=.010 for chews, P=.006, P=.016 for bites, respectively). The number of chews and bites for an entire day in the hypertension subgroup were significantly lower than in the other groups (P=.020, P=.006). Furthermore, the positive abdominal circumference and hypertension subgroups showed lower number of chews per calorie ingested, for 1-day meals (P=.049, P=.021, respectively). CONCLUSIONS These results suggested that masticatory behaviors do not change with environmental, and that masticatory behaviors might have relation to MetS and MetS components. CLINICALTRIAL A protocol containing all methods and materials was uploaded to the Individual Case Data Repository of University Hospital Medical Information Network, prior to the start of data collection (https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000034453).


2017 ◽  
Vol 126 (04) ◽  
pp. 205-212 ◽  
Author(s):  
Sok Wong ◽  
Kok-Yong Chin ◽  
Farihah Suhaimi ◽  
Fairus Ahmad ◽  
Soelaiman Ima-Nirwana

AbstractMetabolic syndrome is a cluster of metabolic abnormalities including central obesity, hyperglycemia, hypertension, and dyslipidemia. A previous study has established that high-carbohydrate high-fat diet (HCHF) can induce MetS in rats. In this study, we modified components of the diet so that it resembled the diet of Southeast Asians. This study aimed to determine the effects of this modified HCHF diet on metabolic parameters in rats. Male Wistar rats (n=14) were randomised into two groups. The normal group was given standard rat chow. The MetS group was given the HCHF diet, comprises of fructose, sweetened condensed milk, ghee, Hubble Mendel and Wakeman salt mixture, and powdered rat food. The diet regimen was assigned for a period of 16 weeks. Metabolic syndrome parameters (abdominal circumference, blood glucose, blood pressure, and lipid profile) were measured at week 0, 8, 12, and 16 of the study. The measurement of whole body composition (fat mass, lean mass, and percentage of fat) was performed using dual-energy X-ray absorptiometry at week 0, 8, and 16. Our results indicated that the components of MetS were partially developed after 8 weeks of HCHF diet. Systolic blood pressure, triglyceride, low density lipoprotein cholesterol, fat content, and percentage of fat was significantly higher in the HCHF group compared to normal group (p<0.05). After 12 weeks of HCHF diet, the rats showed significant increases in abdominal circumference, blood pressure, glucose intolerance, and dyslipidemia compared to normal control (p<0.05). In conclusion, MetS is successfully established in male rats induced by the modified HCHF diet after 12 weeks.


Diabetes ◽  
2020 ◽  
Vol 69 (Supplement 1) ◽  
pp. 459-P
Author(s):  
LEIGH GOEDEKE ◽  
NOEMI ROTLLAN ◽  
KESHIA TOUSSAINT ◽  
ALI NASIRI ◽  
XINBO ZHANG ◽  
...  

Author(s):  
Güzin Özden ◽  
Ayşe Esin Kibar Gül ◽  
Eda Mengen ◽  
Ahmet Ucaktürk ◽  
Hazım Alper Gürsu ◽  
...  

Abstract Objectives The objective of this study is to investigate the cardiovascular risk factors associated with metabolic syndrome (MetS), which is increasingly becoming prevalent in childhood obesity. Methods A total of 113 patients, 76 of whom were between the ages of 10 and 17 (mean age: 14.5 ± 1.8 years) and diagnosed with obesity (30 non-MetS and 46 MetS using IDF) and 37 of whom constituted the control group, participated in the study. Echocardiographic examination and atherogenicity parameters (Atherogenic index of plasma [AIP: logTG/HDL], total cholesterol/HDL, and TG/HDL ratio and non-HDL) were evaluated. Results The most common component accompanying obese MetS was found to be hypertension and low HDL. While obesity duration, body mass index (BMI), blood pressure, fasting insulin, insulin resistance, atherogenicity parameters were determined to be significantly higher in the obese-MetS group. Echocardiography showed that while the thickness, volume, and diameter of LV end-diastolic wall, left ventricular mass (LVM), LVM index (LVMI g/m2) and relative wall thickness (RWT) were significantly high in the MetS group, however, mitral E/A ratio was significantly lower (p<0.05). Change in LV geometry consistent with concentric remodeling (increased RWT, normal LVMI) was visible in obese groups. LVM were positively significantly related to BMI, waist circumference, insulin resistance, blood pressure, LDL level, and negative to mitral E/A ratio. In the obese-MetS group, LVMI was positively correlated to office systolic BP, left atrium end-diastolic volume/index. Conclusions LVMI and atherogenicity parameters that were found to be significantly higher in obese MetS exhibit increased cardiovascular risk in childhood.


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