Obesity and left ventricular mass in children

Background Obesity has negative effects on cardiac function during growth leading to increased heart size and mass, as a result of higher stroke volume and cardiac output.Objective To assess for a relationship between obesity and left ventricular mass (LVM) in children, as well as to assess for a correlation between the duration of obesity and LVM.Methods This cross-sectional study was conducted from October 2011 until February 2012 in Medan and included 30 obese and 30 normal weight children, aged 6 to 13 years. All subjects underwent complete echocardiography examinations to assess LVM and other left ventricular parameters. The Devereux formula was used to measure LVM.Results During the study, 65 children underwent echocardiography, but 5 were subsequently excluded. The left ventricular dimensions in the obese group were significantly higher compared to normal weight group with regards to interventricular septum at end diastole (IVSd), interventricular septum at end systole (IVSS), left ventricular internal diameter at end diastole (LVIDd), left ventricular internal diameter at end systole (LVIDs), left ventricular posterior wall thickness at end diastole (LVPWd), left ventricular mass (LVM), and left ventricular mass index (LVMI) (P=0.0001). Duration of obesity and LVM had a moderate, positive correlation (r=0.407).Conclusion There is significantly higher LVM in the obese group than in the normal weight group. The duration of obesity had a moderate, positive correlation to LVM.

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Effect of overweight and obesity on the left ventricular systolic and diastolic functions in patients with acute myocardial infarction

Clinical & Investigative Medicine ◽

10.25011/cim.v35i4.17152 ◽

2012 ◽

Vol 35 (4) ◽

pp. 229 ◽

Cited By ~ 2

Author(s):

Fatih Poyraz ◽

Murat Turfan ◽

Sinan A. Kocaman ◽

Huseyin U. Yazici ◽

Nihat Sen ◽

...

Keyword(s):

Myocardial Infarction ◽

Diastolic Function ◽

Systolic Function ◽

Study Groups ◽

Left Ventricular ◽

Normal Weight ◽

Overweight And Obesity ◽

Weight Group ◽

Normal Weight Group ◽

Diastolic Functions

Purpose: The purpose of this study was to evaluate whether a association exits among overweight and obesity and left ventricular systolic and diastolic functions in patients admitted with first ST-elevation myocardial infarction (STEMI). Methods: The present study was performed on 451 consecutive patients diagnosed with first STEMI (376 men, 75 women; mean age 56.1±10.8 years). The patients were classified into three groups based on their body mass index (BMI) as normal weight (BMI < 25 kg/m2), overweight (BMI: 25-29.9 kg/m2) and obese (BMI > 30 kg/m2). Echocardiographic features were evaluated and compared among the three groups. Results: Mitral annulus E velocities were higher in obese individuals than normal weight group (p < 0.01). In contrast, mitral A velocities were lower (p =0.03); consequently, E\A and E'\A' ratios were lower (both p =0.01) in the obese group with respect to normal weight group. When the correction of entire variations existing among the groups were performed using multivariate linear regressions analyses, it turned out that BMI was independently associated with E/A (β= -0.19, p =0.044) and with E'/A' (β= -0.016, p=0.021). Ejection fraction, wall motion score index and myocardial S velocities were comparable among the study groups (p > 0.05). Conclusion: These results suggest that while obesity has no adverse effect on the left ventricular systolic function, it has unfavorable consequences on the left ventricular diastolic function in the patients with first STEMI. In contrast, no unfavorable effects of overweight on the left ventricular systolic and diastolic function were detected.

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Pre-pregnancy underweight and obesity are positively associated with small-for-gestational-age infants in a Chinese population

Scientific Reports ◽

10.1038/s41598-019-52018-7 ◽

2019 ◽

Vol 9 (1) ◽

Cited By ~ 6

Author(s):

Yuan Hua Chen ◽

Li Li ◽

Wei Chen ◽

Zhi Bing Liu ◽

Li Ma ◽

...

Keyword(s):

Gestational Age ◽

Small For Gestational Age ◽

Chinese Population ◽

Linear Regression Analysis ◽

Normal Weight ◽

Obese Group ◽

Large For Gestational Age ◽

Weight Group ◽

Normal Weight Group ◽

Weight Groups

Abstract The association between suboptimal pre-pregnancy body mass index (BMI) and small-for-gestational-age (SGA) infants is not well defined. We investigated the association between pre-pregnancy BMI and the risk of SGA infants in a Chinese population. We performed a cohort study among 12029 mothers with a pregnancy. This cohort consisted of pregnant women that were: normal-weight (62.02%), underweight (17.09%), overweight (17.77%) and obese (3.12%). Birth sizes were reduced in the underweight and obese groups compared with the normal-weight group. Linear regression analysis indicated that birth size was positively associated with BMI in both the underweight and normal-weight groups. Further analysis showed that 12.74% of neonates were SGA infants in the underweight group, higher than 7.43% of neonates reported in the normal-weight group (adjusted RR = 1.92; 95% CI: 1.61, 2.30). Unexpectedly, 17.60% of neonates were SGA infants in the obese group, much higher than the normal-weight group (adjusted RR = 2.17; 95% CI: 1.57, 3.00). Additionally, 18.40% of neonates were large-for-gestational-age (LGA) infants in the obese group, higher than 7.26% of neonates reported in the normal-weight group (adjusted RR = 3.00; 95% CI: 2.21, 4.06). These results suggest that pre-pregnancy underweight increases the risk of SGA infants, whereas obesity increases the risks of not only LGA infants, but also SGA infants.

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Effects of a Twelve-Week Weight Reduction Exercise Programme on Selected Spatiotemporal Gait Parameters of Obese Individuals

Journal of Obesity ◽

10.1155/2017/4193256 ◽

2017 ◽

Vol 2017 ◽

pp. 1-7 ◽

Cited By ~ 2

Author(s):

Joseph A. Jegede ◽

Babatunde O. A. Adegoke ◽

Oladapo M. Olagbegi

Keyword(s):

Weight Reduction ◽

Step Length ◽

Exercise Programme ◽

Study Data ◽

Normal Weight ◽

Obese Group ◽

Weight Group ◽

Normal Weight Group ◽

Gait Parameters ◽

Quasi Experimental

Objectives. This study was carried out to investigate the effects of twelve-week weight reduction exercises on selected spatiotemporal gait parameters of obese individuals and compare with their normal weight counterparts. Methods. Sixty participants (30 obese and 30 of normal weight) started but only 58 participants (obese = 30, normal weight = 28) completed the quasi-experimental study. Only obese group had 12 weeks of weight reduction exercise training but both groups had their walking speed (WS), cadence (CD), step length (SL), step width (SW), and stride length (SDL) measured at baseline and at the end of weeks 4, 8, and 12 of the study. Data were analysed using appropriate descriptive and inferential statistics. Results. There was significantly lower WS, SL, and SDL but higher CD and SW in obese group than the normal weight group at baseline and week 12. However, the obese group had significantly higher percentage changes in all selected spatiotemporal parameters than the normal weight group. Conclusion. The 12-week weight reduction exercise programme produced significantly higher percentage changes in all selected spatiotemporal gait parameters in the obese than normal weight individuals and is recommended for improvement of these parameters among the obese individuals with gait related problems.

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Correlation between obesity and clinicopathological characteristics in patients with papillary thyroid cancer: a study of 1579 cases: a retrospective study

PeerJ ◽

10.7717/peerj.9675 ◽

2020 ◽

Vol 8 ◽

pp. e9675

Author(s):

Huijuan Wang ◽

Pingping Wang ◽

Yu Wu ◽

Xiukun Hou ◽

Zechun Peng ◽

...

Keyword(s):

Clinicopathological Characteristics ◽

Normal Weight ◽

Obese Group ◽

Papillary Thyroid ◽

Weight Group ◽

Normal Weight Group ◽

Advanced Tumor ◽

Tumor Node Metastasis Stage ◽

Overweight Group ◽

The Relationship

Objective To explore the relationship between body mass index (BMI) and clinicopathological characteristics in patients with papillary thyroid carcinoma (PTC). Methods The clinical data of 1,579 patients with PTC, admitted to our hospital from May 2016 to March 2017, were retrospectively analyzed. According to the different BMI of patients, it can be divided into underweight recombination (BMI < 18.5 kg/m), normal body recombination (18.5 ≤ BMI < 24.0 kg/m2), overweight recombination (24.0 ≤ BMI < 28.0 kg/m2) and obesity group (BMI ≥ 28.0 kg/m2). The clinicopathological characteristics of PTC in patients with different BMIs group were compared. Results In our study, the risk for extrathyroidal extension (ETE), advanced T stage (T III/IV), and advanced tumor-node-metastasis stage (TNM III/IV) in the overweight group were higher, with OR (odds ratio) = 1.99(1.41–2.81), OR = 2.01(1.43–2.84), OR = 2.94(1.42–6.07), respectively, relative to the normal weight group. The risk for ETE and T III/IV stage in the obese group were higher, with OR = 1.82(1.23–2.71) and OR = 1.82(1.23–2.70), respectively, relative to the normal weight group. Conclusion BMI is associated with the invasiveness of PTC. There is a higher risk for ETE and TNM III/IV stage among patients with PTC in the overweight group and for ETE among patients with PTC in the obese group.

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Alteration of the gut microbiota associated with childhood obesity by 16S rRNA gene sequencing

PeerJ ◽

10.7717/peerj.8317 ◽

2020 ◽

Vol 8 ◽

pp. e8317 ◽

Cited By ~ 7

Author(s):

Xiaowei Chen ◽

Haixiang Sun ◽

Fei Jiang ◽

Yan Shen ◽

Xin Li ◽

...

Keyword(s):

Community Structure ◽

Gut Microbiota ◽

Statistical Difference ◽

Normal Weight ◽

Obese Group ◽

Rrna Gene ◽

Weight Group ◽

Fecal Samples ◽

Normal Weight Group ◽

Gut Microbiota Dysbiosis

Background Obesity is a global epidemic in the industrialized and developing world, and many children suffer from obesity-related complications. Gut microbiota dysbiosis might have significant effect on the development of obesity. The microbiota continues to develop through childhood and thus childhood may be the prime time for microbiota interventions to realize health promotion or disease prevention. Therefore, it is crucial to understand the structure and function of pediatric gut microbiota. Methods According to the inclusion criteria and exclusion criteria, twenty-three normal weight and twenty-eight obese children were recruited from Nanjing, China. Genomic DNA was extracted from fecal samples. The V4 region of the bacterial 16S rDNA was amplified by PCR, and sequencing was applied to analyze the gut microbiota diversity and composition using the Illumina HiSeq 2500 platform. Results The number of operational taxonomic units (OTUs) showed a decrease in the diversity of gut microbiota with increasing body weight. The alpha diversity indices showed that the normal weight group had higher abundance and observed species than the obese group (Chao1: P < 0.001; observed species: P < 0.001; PD whole tree: P < 0.001; Shannon index: P = 0.008). Principal coordinate analysis (PCoA) and Nonmetric multidimensional scaling (NMDS) revealed significant differences in gut microbial community structure between the normal weight group and the obese group. The liner discriminant analysis (LDA) effect size (LEfSe) analysis showed that fifty-five species of bacteria were abundant in the fecal samples of the normal weight group and forty-five species of bacteria were abundant in the obese group. In regard to phyla, the gut microbiota in the obese group had lower proportions of Bacteroidetes (51.35%) compared to the normal weight group (55.48%) (P = 0.030). There was no statistical difference in Firmicutes between the two groups (P = 0.436), and the Firmicutes/Bacteroidetes between the two groups had no statistical difference (P = 0.983). At the genus level, Faecalibacterium, Phascolarctobacterium, Lachnospira, Megamonas, and Haemophilus were significantly more abundant in the obese group than in the normal weight group (P = 0.048, P = 0.018, P < 0.001, P = 0.040, and P = 0.003, respectively). The fecal microbiota of children in the obese group had lower proportions of Oscillospira and Dialister compared to the normal weight group (P = 0.002 and P = 0.002, respectively). Conclusions Our results showed a decrease in gut microbiota abundance and diversity as the BMI increased. Variations in the bacterial community structure were associated with obesity. Gut microbiota dysbiosis might play a crucial part in the development of obesity in Chinese children.

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The association between obesity, hypertension and left ventricular mass in adolescents

Journal of Pediatric Endocrinology and Metabolism ◽

10.1515/jpem-2016-0170 ◽

2017 ◽

Vol 30 (2) ◽

Cited By ~ 4

Author(s):

Saime Ergen Dibeklioglu ◽

Berna Şaylan Çevik ◽

Banu Acar ◽

Zeynep Birsin Özçakar ◽

Nermin Uncu ◽

...

Keyword(s):

Risk Factors ◽

Blood Pressure ◽

Left Ventricular Mass ◽

Clinical Examination ◽

Cardiac Risk ◽

Left Ventricular ◽

Normal Weight ◽

Obese Adolescents ◽

Cardiac Risk Factors ◽

Ventricular Mass

AbstractBackground:Obesity and hypertension (HT) are well known cardiac risk factors. Our goal was to show that even if arterial blood pressure (BP) measurements of obese adolescents are normal during clinical examination, ambulatory blood pressure monitoring (ABPM) can be high, may include cardiac involvement and can also detect left ventricular mass indices (LVMI) value for obese adolescents to diagnose left ventricular hypertrophy (LVH).Methods:This study included 130 children (57 obese hypertensive, 36 obese normotensive, 14 normal weight hypertensive and 23 normal weight normotensive). Adolescents whose BP was measured during clinical examination, after 24-h BP was detected using ABPM, were examined with echocardiography for calculation of LVMI to determine cardiac risk factors for LVH.Results:There was a significant difference between the LVMI of obese-normotensive and obese-hypertensive adolescents, which showed the effect of obesity on LVMI independent of HT. Twenty (35.7%) of 56 obese adolescents with HT detected with ABPM had normal BP measurements during clinical examination. Dipper and nondipper features of obese adolescents were significantly higher in ABPM than those with normal body mass index. When the cutoff LVMI value for LVH was set at ≥38 g/mConclusions:Obesity is a risk factor for LVH independent of HT. To identify masked HT, 24-h ABPM and cardiac examination should be routinely performed in obese adolescents. Using a limit of LVMI ≥38 g/m

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Positive effects of renal denervation on markers of cardiovascular inflammation and left ventricular mass. 24-months follow-up

CARDIOVASCULAR THERAPY AND PREVENTION ◽

10.15829/1728-8800-2021-2678 ◽

2021 ◽

Vol 20 (2) ◽

Author(s):

E. S. Sitkova ◽

V. F. Mordovin ◽

S. E. Pekarskiy ◽

T. M. Ripp ◽

T. R. Ryabova ◽

...

Keyword(s):

Left Ventricular Mass ◽

Inflammatory Markers ◽

Renal Denervation ◽

Interventricular Septum ◽

Left Ventricular ◽

Myocardial Inflammation ◽

Positive Effects ◽

Ventricular Mass ◽

Tnf Α

Aim. To study the long-term effect of renal denervation (RDN) on left ventricular mass (LVM) and inflammatory markers in resistant hypertensive patients.Material and methods. Forty-one patients with resistant hypertension and 24-h blood pressure (BP) 158,7±15,8/87,3+14,6 mmHg, aged 56,6+10,2 years, were enrolled in the study and undergone RDN. Mean 24-h BP, left ventricular mass (transthoracic echocardiography), high sensitivity C-reactive protein (hsCRP), interleukin- 1β (IL1β), IL-6, IL-10) and tumor necrosis factor alpha (TNF- α) were assessed at baseline and 2 years after the RDN.Results. A baseline prevalence of left ventricular hypertrophy (LVH) was 90,2%. Two years after RDN LVM and interventricular septum (IVS) decreased significantly (p<0.05 for both). Decrease in myocardial mass (∆LVM >0 g) was documented in 24 patients. The regression of LVM was accompanied by a significant decrease in levels of inflammatory markers — hsCRP by 38,3% (p=0,031), TNF-α by 60,7% (p=0,009), IL- 1β — by 71,1% (p=0,001), and IL-10 by 58,2% (p=0,001). In patients in the absence of LVM regression only TNF-α decreased significantly (-68,8%, p=0,001). There was no correlation between changes of LVM and the inflammatory markers at 24 months after RDN.Conclusion. The RDN in RH patients may have long-term cardioprotective effect in terms of significant regress of LVH, which may be partly attributed to the regress in systemic or myocardial inflammation.

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Influence of Morbid Obesity on the Single-Dose Pharmacokinetics of Daptomycin

Antimicrobial Agents and Chemotherapy ◽

10.1128/aac.00059-07 ◽

2007 ◽

Vol 51 (8) ◽

pp. 2741-2747 ◽

Cited By ~ 63

Author(s):

Manjunath P. Pai ◽

Jeffrey P. Norenberg ◽

Tamara Anderson ◽

Diane W. Goade ◽

Keith A. Rodvold ◽

...

Keyword(s):

Body Weight ◽

Single Dose ◽

Bacterial Infections ◽

Normal Weight ◽

Obese Group ◽

Pharmacokinetic Parameters ◽

Morbidly Obese ◽

Maximum Plasma ◽

Weight Group ◽

Normal Weight Group

ABSTRACT The present study characterized the single-dose pharmacokinetics of daptomycin dosed as 4 mg/kg of total body weight (TBW) in seven morbidly obese and seven age-, sex-, race-, and serum creatinine-matched healthy subjects. The glomerular filtration rate (GFR) was measured for both groups following a single bolus injection of [125I]sodium iothalamate. Noncompartmental analysis was used to determine the pharmacokinetic parameters, and these values were normalized against TBW, ideal body weight (IBW), and fat-free weight (FFW) for comparison of the two groups. All subjects enrolled in this study were female, and the mean (±standard deviation) body mass index was 46.2 ± 5.5 kg/m2 or 21.8 ± 1.9 kg/m2 for the morbidly obese or normal-weight group, respectively. The maximum plasma concentration and area under the concentration-time curve from dosing to 24 h were approximately 60% higher (P < 0.05) in the morbidly obese group than in the normal-weight group, and these were a function of the higher total dose received in the morbidly obese group. No differences in daptomycin volume of distribution (V), total clearance, renal clearance, or protein binding were noted between the two groups. Of TBW, FFW, or IBW, TBW provided the best correlation to V. In contrast, TBW overestimated GFR through creatinine clearance calculations using the Cockcroft-Gault equation. Use of IBW in the Cockcroft-Gault equation or use of the four-variable modification of diet in renal disease equation best estimated GFR in morbidly obese subjects. Further studies of daptomycin pharmacokinetics in morbidly obese patients with acute bacterial infections and impaired renal function are necessary to better predict appropriate dosage intervals.

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Evaluation of adipokine chemerin in hypertensive obese

Bioscience Journal ◽

10.14393/bj-v35n6a2019-47937 ◽

2019 ◽

Vol 35 (6) ◽

Author(s):

Dalia Ramzy Ibrahim ◽

Mervat Elsayed Taha ◽

Amaal Mohamed Kamal

Keyword(s):

Insulin Resistance ◽

Blood Pressure ◽

Lipid Profile ◽

Normal Weight ◽

Obese Group ◽

Weight Group ◽

Normal Weight Group ◽

Overweight Group ◽

Hs Crp ◽

Weight Groups

Chemerin is an adipokine secreted by adiopose tissue and has a role in obesity and hypertension. This study aims at assessing the level of the adipokine chemerin in obesity and/or hypertension and correlating its level with the inflammatory marker hs-CRP and predictors of atherosclerosis as lipid profile, insulin resistance, systolic (SBP) and diastolic blood pressure (DBP).Volunteers were divided into 4 equal groups according to body mass index (BMI) and blood pressure: normal weight group (BMI ≤ 24.9 kg/m2), overweight group (BMI = 25.0 – 29.9 kg/m2), normotensive obese group (BMI ≥ 30.0 kg/m2) and hypertensive obese group (BMI ≥ 30.0 kg/m2). Chemerin, high-sensitivity C-reactive protein (hs-CRP), lipid profile, fasting blood glucose (FBG) and fasting insulin (FI) were evaluated in the mentioned groups.The results showed that there were significant increases of chemerin, hs-CRP, low density lipoprotein (LDL), SBP and DBP in hypertensive obese group compared to normotensive obese , overweight and normal weight groups. Moreover the only significant positive correlation between chemerin and hs-CRP was observed in the obese hypertensive group. The normotensive obese group showed significant increases of hs-CRP, LDL, triglyceride (TG), FBG, FI and the homeostasis model assessment-insulin resistance index (HOMA-IR) compared to the overweight and normal weight groups. Regarding the overweight group, there were significant increases in chemerin, hs-CRP, cholesterol, LDL, TG compared to the normal weight group, while the HDL levels were significantly lower compared to the two obese groups. These results revealed that the pro-inflammatory adipokine chemerin increases in obesity associated with hypertension, leading to the suggestion that there is a definite dysregulation of the pro-inflammatory and anti-inflammatory parameters towards the pro-inflammatory when hypertension and obesity are associated.

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Comparison of Adiponectin Levels During the Menstrual Cycle Between Normal Weight and Overweight/Obese Young Females

Physiological Research ◽

10.33549/physiolres.934197 ◽

2019 ◽

pp. 939-945

Author(s):

A.M. Salem ◽

R. Latif ◽

N. Rafique

Keyword(s):

Menstrual Cycle ◽

Young Women ◽

Adiponectin Level ◽

Normal Weight ◽

Obese Group ◽

Serum Adiponectin ◽

Enzyme Linked Immunosorbent Assay ◽

Weight Group ◽

Normal Weight Group ◽

Estradiol Levels

To compare serum adiponectin changes across the menstrual cycle between normal weight and overweight/obese young women and its correlation with serum estradiol. Young women (n=56) with regular menstrual cycle had been grouped according to their BMI into normal weight group (n=26) and overweight /obese group (n=30). Blood samples were drawn during early follicular (FP), pre-ovulatory (OP) and luteal phases (LP) of menstrual cycle for serum adiponectin and estradiol levels determination using enzyme-linked immunosorbent assay. Adiponectin serum level showed a significant decreasing pattern across the phases of menstrual cycle in normal weight group. This pattern was absent in the overweight/obese group. In addition, serum adiponectin was lower in overweight/obese group compared to normal weight subjects through all phases of menstrual cycle. No correlation was found between adiponectin and estradiol levels in both groups. A significant variation of serum adiponectin level was detected across the menstrual cycle in females with normal weight. In comparison, overweight/obese group showed a relatively stable adiponectin level throughout the cycle. This lack of adiponectin variation might be added to the complex mechanisms lies behind obesity-related female infertility.

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