<abstract xmlns="http://www.w3.org/1999/xhtml"><sec id="j_1905-7415.0902.382_s_005_w2aab3b7b5b1b6b1aab1c17b1Aa"><h3>Background</h3><p>A National Survey on the Effect of Nutrition conducted in 1996−1997 showed a 14% overall prevalence of obesity in Tunisia with a female predominance. Leptin and ghrelin play crucial roles in regulating body weight and energy balance. Leptin, an anorectic hormone, and ghrelin, an orexigenic hormone, appear to interact with glucose and lipid metabolism.</p></sec><sec id="j_1905-7415.0902.382_s_006_w2aab3b7b5b1b6b1aab1c17b2Aa"><h3>Objectives</h3><p>To determine the circulating levels of ghrelin and leptin in obese Tunisian women and to investigate the correlations of these hormones with body mass index (BMI), and circulating lipids and glucose.</p></sec><sec id="j_1905-7415.0902.382_s_007_w2aab3b7b5b1b6b1aab1c17b3Aa"><h3>Methods</h3><p>Forty obese women were recruited from patients in the “C” Unit of the National Institute of Nutrition and Food Technology. Twenty normal women were recruited as controls. Plasma levels of the studied variables were measured in patients from both groups and findings were analyzed.</p></sec><sec id="j_1905-7415.0902.382_s_008_w2aab3b7b5b1b6b1aab1c17b4Aa"><h3>Results</h3><p>Circulating levels of leptin were significantly higher, while high-density lipoprotein (HDL)-cholesterol and ghrelin levels were significantly lower in the obese women. In the obese women, significant positive correlations were found between circulating levels of leptin and low-density lipoprotein (LDL)-cholesterol, BMI, and glucose; and ghrelin and HDL-cholesterol. Significant negative correlations were found between circulating levels of leptin and HDL-cholesterol and ghrelin; and ghrelin and leptin, LDL-cholesterol, BMI, and glucose. Multivariate analysis revealed that ghrelin was significantly associated with HDL-cholesterol, LDL-cholesterol, and blood glucose.</p></sec><sec id="j_1905-7415.0902.382_s_009_w2aab3b7b5b1b6b1aab1c17b5Aa"><h3>Conclusions</h3><p>The significant negative correlation between leptin and ghrelin suggests that these two hormones may be antagonistic. Increased levels of ghrelin are correlated with decreased circulating levels of HDL-cholesterol and increased levels of LDL-cholesterol.</p></sec></abstract>

BackgroundA National Survey on the Effect of Nutrition conducted in 1996−1997 showed a 14% overall prevalence of obesity in Tunisia with a female predominance. Leptin and ghrelin play crucial roles in regulating body weight and energy balance. Leptin, an anorectic hormone, and ghrelin, an orexigenic hormone, appear to interact with glucose and lipid metabolism.ObjectivesTo determine the circulating levels of ghrelin and leptin in obese Tunisian women and to investigate the correlations of these hormones with body mass index (BMI), and circulating lipids and glucose.MethodsForty obese women were recruited from patients in the “C” Unit of the National Institute of Nutrition and Food Technology. Twenty normal women were recruited as controls. Plasma levels of the studied variables were measured in patients from both groups and findings were analyzed.ResultsCirculating levels of leptin were significantly higher, while high-density lipoprotein (HDL)-cholesterol and ghrelin levels were significantly lower in the obese women. In the obese women, significant positive correlations were found between circulating levels of leptin and low-density lipoprotein (LDL)-cholesterol, BMI, and glucose; and ghrelin and HDL-cholesterol. Significant negative correlations were found between circulating levels of leptin and HDL-cholesterol and ghrelin; and ghrelin and leptin, LDL-cholesterol, BMI, and glucose. Multivariate analysis revealed that ghrelin was significantly associated with HDL-cholesterol, LDL-cholesterol, and blood glucose.ConclusionsThe significant negative correlation between leptin and ghrelin suggests that these two hormones may be antagonistic. Increased levels of ghrelin are correlated with decreased circulating levels of HDL-cholesterol and increased levels of LDL-cholesterol.

Plasma levels of leptin and ghrelin and their correlation with BMI, and circulating lipids and glucose in obese Tunisian women

Asian Biomedicine

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

BackgroundA National Survey on the Effect of Nutrition conducted in 1996−1997 showed a 14% overall prevalence of obesity in Tunisia with a female predominance....

	Leptin	HDL-chol	LDL-chol	TG	Ghrelin	BMI	Glucose
Leptin	-	r = –0.48	r = 0.48	r = –0.051	r = –0.5	r = 0.61	r = 0.42
Leptin	-	P = 0 002	P = 0 002	P = 0 58	P = 0 01	P < 0 001	P = 0 008
Ghrelin	r = –0.5	r = 0.64	r = –0.423	r = –0.08	-	r = –0.41	r = –0.49
Ghrelin	P = 0.001	P < 0.001	P = 0.007	P = 0.61	–	P = 0.01	P = 0.001

	Obese women	Group control
<44.4 pg/mL	32	4
	Se = 80%	20%
≥44.4 pg/ml	8	16
	20%	Sp = 80%
Total	40	20

Parameters	Obese women (Mean ± SD)	Controls (Mean ± SD)	P
Total cholesterol (mmol/L)	5.04 ± 1.10	4.52 ± 1.05	0.08
HDL-cholesterol (mmol/L)	1.03 ± 0.25	1.19 ± 0.14	<0.01
LDL-cholesterol (mmol/L)	3.37 ± 0.61	2.70 ± 0.83	<0.001
Triglycerides (mmol/L)	1.95 ± 0.84	1.51 ± 0.91	0.06
Glucose (mmol/L)	7.95 ± 0.52	5.91 ± 1.05	<0.001
Leptin (ng/mL)	19.35 ± 5.78	4.68 ± 1.88	<0.001
Ghrelin (pg/mL)	29.63 ± 9.62	56.02 ± 23.60	<0.001
Total	40	20

Plasma levels of leptin and ghrelin and their correlation with BMI, and circulating lipids and glucose in obese Tunisian women

Article Category: Brief communication (Original)

Data publikacji: 31 sty 2017

Zakres stron: 161 - 168

DOI: https://doi.org/10.5372/1905-7415.0902.382

Słowa kluczowe
BMI, ghrelin, leptin, lipids, obesity

© 2017 Fethi Ben Slama, Nahawand Jridi, Mohamed Chiheb Ben Rayana, Abdelmagid Trimeche, Mohamed Hsairi, Omrane Belhadj

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Figure 1

Figure 2

Figure 3

Figure 4

Correlations between leptin, ghrelin, and other parameters

Determination of risk corresponding to the threshold of ghrelin from the receiver operating characteristic (ROC) curve

Comparison of mean lipid parameters, ghrelin, and leptin in obese women and controls

Plasma levels of leptin and ghrelin and their correlation with BMI, and circulating lipids and glucose in obese Tunisian women

Article Category: Brief communication (Original)

Data publikacji: 31 sty 2017

Zakres stron: 161 - 168

DOI: https://doi.org/10.5372/1905-7415.0902.382

Słowa kluczoweBMI, ghrelin, leptin, lipids, obesity

© 2017 Fethi Ben Slama, Nahawand Jridi, Mohamed Chiheb Ben Rayana, Abdelmagid Trimeche, Mohamed Hsairi, Omrane Belhadj

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Figure 1

Figure 2

Figure 3

Figure 4

Correlations between leptin, ghrelin, and other parameters

Determination of risk corresponding to the threshold of ghrelin from the receiver operating characteristic (ROC) curve

Comparison of mean lipid parameters, ghrelin, and leptin in obese women and controls

Słowa kluczowe
BMI, ghrelin, leptin, lipids, obesity