Ghrelin Gene Variants Influence on Metabolic Syndrome Components in Aged Spanish Population
Mora, Mireia (Hospital Clínic i Provincial de Barcelona)
Adam, Victoria (Hospital Clínic Universitari (València))
Palomera, Elisabet (Hospital de Mataró. Consorci Sanitari del Maresme)
Blesa, Sebastián (Hospital Clínic Universitari (València))
Díaz-Soto, Gonzalo (Hospital Clínico Universitario de Valladolid)
Buquet, Xavier (Hospital de Mataró. Consorci Sanitari del Maresme)
Serra-Prat, Mateu (Hospital de Mataró. Consorci Sanitari del Maresme)
Martín-Escudero, Juan Carlos (Hospital Universitario Río Hortega (Valladolid))
Palanca, Ana (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
Chaves, Javier Felipe (Hospital Clínic Universitari (València))
Puig Domingo, Manuel (Centro de Investigación Biomédica en Red de Enfermedades Raras)
Mataró Aging Study Group

Data:	2015
Resum:	BACKGROUND: The role of genetic variations within the ghrelin gene on cardiometabolic profile and nutritional status is still not clear in humans, particularly in elderly people. OBJECTIVES: We investigated six SNPs of the ghrelin gene and their relationship with metabolic syndrome (MS) components. SUBJECTS AND METHODS: 824 subjects (413 men/411 women, age 77. 31±5. 04) participating in the Mataró aging study (n = 310) and the Hortega study (n = 514) were analyzed. Anthropometric variables, ghrelin, lipids, glucose and blood pressure levels were measured, and distribution of SNPs -994CT (rs26312), -604GA (rs27647), -501AC (rs26802), R51Q (rs34911341), M72L (rs696217) and L90G (rs4684677) of the ghrelin gene evaluated. Genotypes were determined by multiplex PCR and SNaPshot minisequencing. MS (IDF criteria) was found in 54. 9%. RESULTS:No association between any of the SNPs and levels of total fasting circulating ghrelin levels was found. C/A-A/A genotype of M72L was associated with increased risk of central obesity according to IDF criteria, while G/A-G/G genotypes of -604GA with reduced risk. A/A genotype of -501AC polymorphism was associated to decreased BMI. In relation to lipid profile, the same genotypes of -604GA were associated with increased total cholesterol and LDL-cholesterol and -501AC with reduced triglycerides. There were no associations with systolic or diastolic blood pressure levels or with hypertension, glucose levels or diabetes and ghrelin polymorphisms. However, G/G genotype of -604GA was associated with glucose >100 mg/dL. Haplotype analysis showed that only one haplotype is associated with increased risk of waist circumference and central obesity. The analysis of subjects by gender showed an important and different association of these polymorphisms regarding MS parameters. CONCLUSION: Ghrelin gene variants -604GA, -501AC and M72L are associated with certain components of MS, in particular to BMI and lipid profile in elderly Spanish subjects. .
Ajuts:	Instituto de Salud Carlos III PROMETEO/2009/029
Nota:	Altres ajuts: Fondo Investigaciones Sanitarias Grants 07/0601 And PI11/00726, by CIBER de Diabetes y Enfermedades Metabólicas Relacionadas (CIBERDEM); CIBERDEM is an initiative by Carlos III Health Institute in Madrid and the Spanish Health Ministry, by PROMETEO/2009/029, AP-091/11, and ACOMP/2013/039 from the Valencian Government.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Síndrome metabòlica ; Ghrelin gene ; Aged population
Publicat a:	PloS one, Vol. 10 Núm. 9 (september 2015) , ISSN 1932-6203

DOI: 10.1371/journal.pone.0136931
PMID: 26375586

17 p, 249.1 KB

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