Zaki M, Youness E. R. Somatotype Features and Biochemical Characteristics of Patients With and Without Metabolic Syndrome in Obese Women. Biomed Pharmacol J 2022;15(3).

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Manuscript received on :17-08-2022
Manuscript accepted on :08-09-2022
Published online on: 14-09-2022

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Reviewed by: Dr. Marilena Stoian
Second Review by: Dr. Mazhar Ozkan
Final Approval by: Dr. H Fai Poon

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Moushira Zaki¹ and Eman R. Youness^2*

¹Biological Anthropology Department, Medical Research and ClinicalStudies Institute - National Research Centre, Cairo, Egypt.

²Medical Biochemistry Department, Medical Research Division, Medical Research and Clinical StudiesInstitute - National Research Centre, Cairo, Egypt.

Corresponding Author E-mail: hoctober2000@yahoo.com

DOI : https://dx.doi.org/10.13005/bpj/2465

Abstract

Somatotype is the parameter used to determine the body composition. Our objective was to prove if there are somatotype divergences among metabolically healthy women and women with metabolic syndrome. Study included 100 obese women aged 28.09± 9.21 years with metabolic syndrome (MetS) and 100 healthy control women without MetS matched in age and BMI. Metabolic condition was evaluated according to International Diabetes Federation criteria (IDF), whilst somatotype was achieved via Heath-Carter method. There were notable variations in somatotype between the two groups. Women without metabolic syndrome had obviously higher ectomorph-mesomorph (p<0.03) mesomorph-endomorph (8.31-4.51-0.61) in comparison to women with metabolic syndrome showing higher endomorph-mesomorph 6.67-4.41-0.62. Significant positive correlation was found between HOMA-IR and endomorph component (p = 0.01) as well as between  triglycerides and endomorph component in MetS group (p=0.01), but no difference was observed in those without. We concluded that endomorph is more dominant in metabolically obese women and mesomorph in group with MetS. Metabolic abnormalities are directly correlated with the 1 The obtained results imply the important role of the nonadipose components, presented by mesomorphy and ectomorphy, in the distinction between healthy and risky metabolic profile. This study expressed the need for somatotyping in MetS to deal with disease prevention.

Keywords

Biochemical parameters; metabolic syndrome; obese women; somatotyping

Introduction

Somatotype expressed in three types (ectomorph, mesomorph and endomorph) that experimentally describe diverse features of the body composition: the musculoskeletal development, linearity and the body composition degree hotness ². Obesity, particularly central category, has been confirmed as independent risk factor for the progress of metabolic and cardiovascular turbulences. Nevertheless, numerous persons with phenotypically obese have naturalistic metabolic profile^3,4. Incidence of impediments in obesity is not associated with obesity phenotype however might be imputed to inflammations related the pattern of visceral fat distribution and metabolic abnormalities, dysfunction regardless of total body fats⁵. The techniques discussing the metabolic turbulences in individuals having metabolically obese normal weight, in addition, avoid the progress of metabolic irregularities in individuals with metabolically healthy obese, are imperfectly comprehend. This could be of great value in the conception of these situations⁶. Little is known about the association between somatotype obesity and chronic diseases. MetS is an escalating and major clinical challenge and universal public-health in the wake of increasing obesity, sedentary life habits surplus energy intake and urbanization. MetS cause a 5-fold upsurge in the risk of 2-fold the risk of developing cardiovascular disease (CVD) and type 2 diabetes mellitus (T2DM) over the next five to ten years⁸. Presently, no researches where the somatotype of patients with metabolic abnormalities has been founded, especially in the Egyptian inhabitants. Some studies indicate that 10-25% of obese individuals are actually metabolically healthy ³,⁴,⁹.

Consequently, we aimed to create the somatotype of patients with MetS among obese women with and without MetS and assess its relation with metabolic parameters.

Subjects and methods

The study comprises 200 obese women; 100 with MetS and 100 without MetS. A written informed consent was obtained from each participant. The study was approved by National Research Centre Ethics Committee, Egypt (Number 16361), according to the World Medical Association’s Declaration of Helsinki. Exclusion criteria include viral infection within the last 2 months or subjects with a history of any systemic chronic disease. During the past 2 months, subjects that received vitamin supplements systemic steroids and mineral or antibiotics were also omitted. Somatotype was assessed using Heath & Carter method². Anthropometric measures details have been previously reported

. Anthropometric measurements were recorded in duplicate and on the right side of the body (where appropriate). Height was measured with the patients standing with their backs leaning against the stadiometer of the same scale. Body mass index was calculated as weight in kilograms divided by height in meters squared (kg/m2). Waist circumference was measured with light clothing at a level midway between the lower rib margin and the iliac crest standing and breathing normally.  Sum of skinfolds including triceps, biceps,and supraspinale were calculated following the recommendations of the International Biological Program ¹¹

Homeostasis Model Insulin Resistance (HOMA-IR) was used to estimate insulin resistance¹².  Mean values with t-distribution comparison tests were done where normality could be expected, with a statistical significance of 95%. Medians comparison tests were performed SPSS 20.0 software was used for statistical

analysis.when normality could not be assumed. Plotting somatotypes on 2-D stomato-chart as follows:

X−coordinate = Mesomorphy – Endomorphy

Y−coordinate= 2 x Mesomorphy- (Endomorphy + Ectomorphy)

Results are presented as mean ± standard deviation

Results

Descriptive statistics for the anthropometric variables and age for all cases have been presented in Table 1. There was  significant increase in skinfolds and waist circumference in women with MetS compared to those without. Somatotype components for patients with MetS was 6.67-4.41-0.62 in correspondence to an endomorph-mesomorph somatotype and was 8.31-4.51-0.61 in obese cases Mean without MetS, corresponding to ectomorph-mesomorph mesomorph to endomorph (Figure 1). Table 2 shows biochemical parameters of the study groups.  Significant increase of serum lipids and HOMA-IR was observed in obese cases with MetS compared to those without. Table  3 shows significant positive correlation between HOMA-IR and endomorph somatotype in group with MetS as well as between TG triglycerides and endomorph. On the other hand, no relations were observed in the other one without MetS. Somatotypes are elucidated and represent an overview of the dominance of each component in Fig. 1.

Table 1: Descriptive statistics of anthropometric  the studied women.

Table 2: Biochemical parameters of obese women with and without MetS.

Table 3: Correlations between somatotype features and biochemical parameters in obese women with and without MetS.

Figure 1: Somatochart representing the mean of somatotype of the studied population: the colored circles indicate somatotype of patients with and without MetS. Click here to view figure

Discussion

Different aspects of body composition are described by somatotype. It is utilized for the estimation of the variations in physique throughout physical activity, ageing and growth. Nevertheless, some studies displayed that it could be used to predict specific diseases¹³ . Obesity not constantly exhibit metabolic complications¹⁴. Previously, mesomorph endomorphs suffer from neurosis, lumbosacral radiculitis or digestive system disorders¹³. It was shown a significant relationship between clinical/subclinical cardiovascular disease and metabolically healthy obese phenotype and all-cause mortality¹⁵,¹⁶. Metabolically normal-weight persons are recognized to establish metabolic turbulences despite of BMI normal values. Numerous researches revealed low lean mass and higher body fat in the obese persons with metabolically normal-weight ¹⁷,¹⁸. In normal weight persons, incidence of metabolic aberration is imputed to subcutaneous fat tissue dysfunction due to monocytes/macrophage or infiltration while in these patients, visceral fat tissues are unaffected¹⁹. The two phenotypes of obesity are described as metabolically healthy obese and metabolically unhealthy normal weight. The metabolically healthy obese individuals have a favorable lipid profile, normal insulin response, normal blood pressure, and a minor visceral fat despite surplus quantity of body fat⁴. The variance of these two phenotypes has been argued, conversely, the incidence of well condition in metabolic healthy obese persons has been partially due to normal function of adipose tissue. It is imperative to differentiate them as opposed to just lean versus obese. However, information concerning demographic characteristics of individuals and lifestyle ²⁰of both are contradictory²¹. Incidence of impediments in obesity is not associated to obesity phenotype but might be due to inflammatory related metabolic dysfunction, aberrations and visceral fat allocation pattern regardless of total fat of the body ^5,22. In analyzing the fitness of somatotype to predict metabolic risk, endomorph and mesomorph types were shown as better markers for metabolic abnormalities^2312425. In agreement with our findings mesomorph component in diabetic patients was observed¹ and waist circumference and TG are main risk factors for insulin resistance²⁶. Obesity and insulin resistance may contribute in the development of metabolic syndrome among the middle-aged women²⁷.

Conclusion

In conclusion, the findings of this study indicate somatotype difference in obese women with MetS and those with without. This is the first reporting on the somatotype study among Egyptian patients with MetS. The greatest predictor of somatotype among metabolically obese was endomorph-mesomorph on the other hand, ectomorph- mesomorph  is the greatest predictor in metabolically healthy obese one, as it mainly reveals muscularity. Moreover, significant association of abnormal metabolic parameters with somatotypes features may account for their contribution in MetS risk. 

Conflict of Interest

There is no conflict of interest.

Funding Sources

There is no funding sources.

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