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Abbassi R, Pontes MC, Dhibi S, Duarte Filho LAMS, Othmani S, Bouzenna H, Almeida JRGS, Hfaiedh N. Antioxidant properties of date seeds extract (Phoenix dactylifera L.) in alloxan induced damage in rats. BRAZ J BIOL 2023; 83:e274405. [PMID: 38126632 DOI: 10.1590/1519-6984.274405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 09/05/2023] [Indexed: 12/23/2023] Open
Abstract
The study was conducted to examine the antioxidant activity and evaluate the protective effects of the date seeds powder kentichi against alloxan-induced damage in the liver, kidney, and pancreas in diabetic's rats. Group 1: control group, that did not receive any treatment, Group 2: alloxan was injected intraperitoneally (120 mg/kg body weight) for two days (Diab), Group 3: treated only by date seeds powder added in the diet (300 g/kg) for 6 weeks (DSPK), Group 4: alloxan-diabetic rats treated with date seeds powder (300 g/kg) (DSPK + Diab). Estimations of biochemical parameters in blood were determined. TBARS, SOD, CAT, and GPx activities were determined. A histopathological study was done by immersing pieces of both organs in a fixative solution followed by paraffin hematoxylin-eosin staining. In addition, the antioxidant activities of DSPK were evaluated by DPPH radical scavenging activity, reducing power, and ABTS free radical scavenging. The results revealed that date seeds significantly decreased serum levels of glucose, cholesterol, triglycerides, urea, creatinine, T-protein, ALP, D-bili and T-bili levels. In addition, superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) activities that had been reduced in liver, kidney, and pancreas of the treated group were restored by DSPK treatments and, therefore, the lipid peroxidation level was reduced in the liver, kidney and pancreas tissue compared to the control group. Additionally, the histological structure in these organs was restored after treatment with date seeds powder.
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Affiliation(s)
- R Abbassi
- University of Gafsa, Faculty of Sciences of Gafsa, Laboratory of Biotechnology and Biomonitoring of the Environment and Oasis Ecosystems - LBBEEO, Gafsa, Tunisia
| | - M C Pontes
- Universidade Federal do Vale do São Francisco, Núcleo de Estudos e Pesquisas de Plantas Medicinais - NEPLAME, Petrolina, PE, Brasil
| | - S Dhibi
- University of Gafsa, Faculty of Sciences of Gafsa, Laboratory of Biotechnology and Biomonitoring of the Environment and Oasis Ecosystems - LBBEEO, Gafsa, Tunisia
| | - L A M S Duarte Filho
- Universidade Federal do Vale do São Francisco, Núcleo de Estudos e Pesquisas de Plantas Medicinais - NEPLAME, Petrolina, PE, Brasil
| | - S Othmani
- University of Gafsa, Faculty of Sciences of Gafsa, Laboratory of Biotechnology and Biomonitoring of the Environment and Oasis Ecosystems - LBBEEO, Gafsa, Tunisia
| | - H Bouzenna
- University of Gafsa, Faculty of Sciences of Gafsa, Laboratory of Biotechnology and Biomonitoring of the Environment and Oasis Ecosystems - LBBEEO, Gafsa, Tunisia
| | - J R G S Almeida
- Universidade Federal do Vale do São Francisco, Núcleo de Estudos e Pesquisas de Plantas Medicinais - NEPLAME, Petrolina, PE, Brasil
| | - N Hfaiedh
- University of Gafsa, Faculty of Sciences of Gafsa, Laboratory of Biotechnology and Biomonitoring of the Environment and Oasis Ecosystems - LBBEEO, Gafsa, Tunisia
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Capuozzo M, Celotto V, Landi L, Ferrara F, Sabbatino F, Perri F, Cascella M, Granata V, Santorsola M, Ottaiano A. Beyond Body Size: Adiponectin as a Key Player in Obesity-Driven Cancers. Nutr Cancer 2023; 75:1848-1862. [PMID: 37873648 DOI: 10.1080/01635581.2023.2272343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 08/23/2023] [Indexed: 10/25/2023]
Abstract
Obesity, a complex and multifactorial disease influenced by genetic, environmental, and psychological factors, has reached epidemic proportions globally, posing a significant health challenge. In addition to its established association with cardiovascular disease and type II diabetes, obesity has been implicated as a risk factor for various cancers. However, the precise biological mechanisms linking obesity and cancer remain largely understood. Adipose tissue, an active endocrine organ, produces numerous hormones and bioactive molecules known as adipokines, which play a crucial role in metabolism, immune responses, and systemic inflammation. Notably, adiponectin (APN), the principal adipocyte secretory protein, exhibits reduced expression levels in obesity. In this scoping review, we explore and discuss the role of APN in influencing cancer in common malignancies, including lung, breast, colorectal, prostate, gastric, and endometrial cancers. Our review aims to emphasize the critical significance of investigating this field, as it holds great potential for the development of innovative treatment strategies that specifically target obesity-related malignancies. Furthermore, the implementation of more rigorous and comprehensive prevention and treatment policies for obesity is imperative in order to effectively mitigate the risk of associated diseases, such as cancer.
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Affiliation(s)
| | | | | | | | - Francesco Sabbatino
- Oncology Unit, Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, Salerno, Italy
| | - Francesco Perri
- Istituto Nazionale Tumori di Napoli, IRCCS "G. Pascale", Naples, Italy
| | - Marco Cascella
- Istituto Nazionale Tumori di Napoli, IRCCS "G. Pascale", Naples, Italy
| | - Vincenza Granata
- Istituto Nazionale Tumori di Napoli, IRCCS "G. Pascale", Naples, Italy
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Buraczynska M, Golacki J, Zaluska W. Leu72Met Polymorphism in Ghrelin Gene: A Potential Risk Factor for Hypertension in Type 2 Diabetes Patients. Diabetes Metab Syndr Obes 2023; 16:557-564. [PMID: 36883139 PMCID: PMC9985889 DOI: 10.2147/dmso.s393373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 02/09/2023] [Indexed: 03/05/2023] Open
Abstract
OBJECTIVE Ghrelin (GHRL) is known to be engaged in metabolic and cardiovascular processes. There is evidence suggesting its involvement in the regulation of blood pressure and hypertension. The purpose of this preliminary case-control study was to determine the involvement of the Leu72Met (rs696217) polymorphism in the GHRL gene in type 2 diabetes (T2DM). METHODS The Leu72Met polymorphism was genotyped in 820 individuals with T2DM and 400 healthy subjects by the PCR-RFLP technique. The polymorphism distribution was first compared in those withT2DM and controls, then in subgroups of participants representing different clinical phenotypes. RESULTS No significant association was identified between Leu72Met and T2DM. The distribution of polymorphism was analyzed in subgroups of individuals with different clinical phenotypes (hypertension, diabetic nephropathy, obesity). In this analysis, rs696217 was associated with hypertension. The presence of T allele was associated with higher risk of hypertension (OR = 2.50, 95% CI 1.68-3.73, p < 0.001). When adjusted for age, gender and BMI, the association was still significant (OR = 2.62, 95% CI 1.83-3.96, p < 0.001). A post hoc power calculations based on a minor allele frequency revealed the power of 97% for comparison between HY+ and HY- subgroups. CONCLUSION This is the first study demonstrating that the ghrelin Leu72Met SNP is associated with hypertension in Caucasians with T2DM. If confirmed in larger studies in different populations, it may be a novel potential risk factor for hypertension in individuals withT2DM.
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Affiliation(s)
- Monika Buraczynska
- Department of Nephrology, Medical University of Lublin, Lublin, Poland
- Correspondence: Monika Buraczynska, Department of Nephrology, Medical University of Lublin, Jaczewskiego 8, Lublin, 20-950, Poland, Tel +48 81 7244716, Fax +48 81 7244357, Email
| | - Jakub Golacki
- Department of Nephrology, Medical University of Lublin, Lublin, Poland
| | - Wojciech Zaluska
- Department of Nephrology, Medical University of Lublin, Lublin, Poland
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The Complex Roles of Adipokines in Polycystic Ovary Syndrome and Endometriosis. Biomedicines 2022; 10:biomedicines10102503. [PMID: 36289764 PMCID: PMC9598769 DOI: 10.3390/biomedicines10102503] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 11/30/2022] Open
Abstract
Polycystic ovary syndrome (PCOS) and endometriosis are frequent diseases of the female reproductive tract causing high morbidity as they can significantly affect fertility and quality of life. Adipokines are pleiotropic signaling molecules secreted by white or brown adipose tissues with a central role in energy metabolism. More recently, their involvement in PCOS and endometriosis has been demonstrated. In this review article, we provide an update on the role of adipokines in both diseases and summarize previous findings. We also address the results of multi-omics approaches in adipokine research to examine the role of single nucleotide polymorphisms (SNPs) in genes coding for adipokines and their receptors, the secretome of adipocytes and to identify epigenetic alterations of adipokine genes that might be conferred from mother to child. Finally, we address novel data on the role of brown adipose tissue (BAT), which seems to have notable effects on PCOS. For this review, original research articles on adipokine actions in PCOS and endometriosis are considered, which are listed in the PubMed database.
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SINE Insertion May Act as a Repressor to Affect the Expression of Pig LEPROT and Growth Traits. Genes (Basel) 2022; 13:genes13081422. [PMID: 36011333 PMCID: PMC9407865 DOI: 10.3390/genes13081422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/04/2022] [Accepted: 08/05/2022] [Indexed: 12/03/2022] Open
Abstract
Retrotransposon is an important component of the mammalian genome. Previous studies have shown that the expression of protein-coding genes was affected by the insertion of retrotransposon into the proximal genes, and the phenotype variations would be related to the retrotransposon insertion polymorphisms (RIPs). In this study, leptin (LEP), leptin receptor (LEPR), and leptin receptor overlapping transcript (LEPROT), which play important roles in the regulation of fat synthesis and body weight, were screened to search for the RIPs and their effect on phenotype and gene expression, as well as to further study the function of the insertion. The results showed that three RIPs located in intron 1 of LEPROT and intron 2 and 21 of LEPR were identified, and they were all SINEA1, which was one type of retrotransposon. The SINE insertion at the LEPROT was the dominant allele in native pig breeds. The age of 100 kg body weight of SINE+/+ Large White individuals was significantly higher than those of SINE+/− and SINE−/− individuals (p < 0.05). The LEPROT gene expression in the liver and suet of 30-day-old SINE−/− Sujiang piglets were significantly higher than those of SINE+/+ and SINE+/− piglets (p < 0.01). The dual-luciferase reporter gene assay showed that SINE insertion in PK15 and 3T3-L1 cells significantly reduced the promoter activity of the LEPROT gene (p < 0.01). Therefore, SINE insertion can be a repressor to reduce the expression of LEPROT and could be a useful molecular marker for assisted selection of growth traits in pig breeding.
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Sinkiewicz-Darol E, Adamczyk I, Łubiech K, Pilarska G, Twarużek M. Leptin in Human Milk-One of the Key Regulators of Nutritional Programming. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27113581. [PMID: 35684517 PMCID: PMC9182392 DOI: 10.3390/molecules27113581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 05/30/2022] [Accepted: 05/31/2022] [Indexed: 11/16/2022]
Abstract
Breast milk is the optimal food for infants and toddlers, providing basic nutrients. It is also a source of many biologically active substances. Among them are hormones responsible for metabolic balance. One of the hormones taken in with breast milk by a breastfed baby is leptin. This hormone is involved in the regulation of appetite, informing the brain about the body’s energy resources. Having the correct mechanisms related to the action of leptin is a factor reducing the risk of obesity. The natural presence of leptin in the composition of breast milk suggests that it has a specific role in shaping the health of a breastfed child. Obesity as a disease of civilization affects more and more people, including children. The development of this disease is multifaceted and determined by many factors, including genetic and environmental factors such as eating habits and low physical activity. Behind obesity, there are complex mechanisms in which many elements of the human body are involved. Understanding the effects of breastfeeding as a natural source of leptin can help prevent childhood obesity and development of this disease in future life.
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Affiliation(s)
- Elena Sinkiewicz-Darol
- Department of Physiology and Toxicology, Faculty of Biological Sciences, Kazimierz Wielki University, Chodkiewicza 30 St., 85-064 Bydgoszcz, Poland; (I.A.); (G.P.); (M.T.)
- Human Milk Bank, Ludwik Rydygier Provincial Polyclinical Hospital, St. Josef 53-59, 87-100 Torun, Poland
- Correspondence: (E.S.-D.); (K.Ł.)
| | - Iwona Adamczyk
- Department of Physiology and Toxicology, Faculty of Biological Sciences, Kazimierz Wielki University, Chodkiewicza 30 St., 85-064 Bydgoszcz, Poland; (I.A.); (G.P.); (M.T.)
- Human Milk Bank, Ludwik Rydygier Provincial Polyclinical Hospital, St. Josef 53-59, 87-100 Torun, Poland
| | - Katarzyna Łubiech
- Department of Physiology and Toxicology, Faculty of Biological Sciences, Kazimierz Wielki University, Chodkiewicza 30 St., 85-064 Bydgoszcz, Poland; (I.A.); (G.P.); (M.T.)
- Correspondence: (E.S.-D.); (K.Ł.)
| | - Gabriela Pilarska
- Department of Physiology and Toxicology, Faculty of Biological Sciences, Kazimierz Wielki University, Chodkiewicza 30 St., 85-064 Bydgoszcz, Poland; (I.A.); (G.P.); (M.T.)
| | - Magdalena Twarużek
- Department of Physiology and Toxicology, Faculty of Biological Sciences, Kazimierz Wielki University, Chodkiewicza 30 St., 85-064 Bydgoszcz, Poland; (I.A.); (G.P.); (M.T.)
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Macé T, González-García E, Foulquié D, Carrière F, Pradel J, Durand C, Douls S, Allain C, Parisot S, Hazard D. Genome-wide analyses reveal a strong association between LEPR gene variants and body fat reserves in ewes. BMC Genomics 2022; 23:412. [PMID: 35650533 PMCID: PMC9158286 DOI: 10.1186/s12864-022-08636-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 05/13/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Among the adaptive capacities of animals, the management of energetic body reserves (BR) through the BR mobilization and accretion processes (BR dynamics, BRD) has become an increasingly valuable attribute for livestock sustainability, allowing animals to cope with more variable environments. BRD has previously been reported to be heritable in ruminants. In the present work, we conducted genome-wide studies (GWAS) in sheep to determine genetic variants associated with BRD. BR (i.e. levels) and BRD (i.e. changes over time) were obtained through body condition score measurements at eight physiological stages throughout each productive cycle in Romane ewes (n = 1034) and were used as phenotypes for GWAS. After quality controls and imputation, 48,593 single nucleotide polymorphisms (SNP) were included in the GWAS. RESULTS Among the 23 QTL regions identified, a major QTL associated with BR during pregnancy and lactation was identified on chromosome 1. In this region, several significant SNPs mapped to the leptin receptor gene (LEPR), among which one SNP mapped to the coding sequence. The point mutation induces the p.P1019S substitution in the cytoplasmic domain, close to tyrosine phosphorylation sites. The frequency of the SNP associated with increased BR levels was 32%, and the LEPR genotype explained up to 5% of the variance of the trait. Higher fatness levels in ewes carrying the LEPR p.P1019S mutation were observed all along the productive cycle. CONCLUSIONS These results provide strong evidences for involvement of LEPR in the regulation of BR in sheep and highlight it as a major candidate gene for improving adaptive capacities by genetic selection.
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Affiliation(s)
- Tiphaine Macé
- GENPHYSE, Université de Toulouse, INRAE, ENVT, 24 chemin de Borde Rouge, CS 52627, F-31326, Castanet-Tolosan, France
| | - Eliel González-García
- SELMET, INRAE, CIRAD, Montpellier SupAgro, Univ. Montpellier, 34060, Montpellier, France
| | - Didier Foulquié
- UE321 Domaine de la Fage, INRAE, 12250, Saint-Jean Saint-Paul, France
| | - Fabien Carrière
- UE321 Domaine de la Fage, INRAE, 12250, Saint-Jean Saint-Paul, France
| | - Julien Pradel
- UE321 Domaine de la Fage, INRAE, 12250, Saint-Jean Saint-Paul, France
| | - Christian Durand
- UE321 Domaine de la Fage, INRAE, 12250, Saint-Jean Saint-Paul, France
| | - Sebastien Douls
- UE321 Domaine de la Fage, INRAE, 12250, Saint-Jean Saint-Paul, France
| | - Charlotte Allain
- UE321 Domaine de la Fage, INRAE, 12250, Saint-Jean Saint-Paul, France
| | - Sara Parisot
- UE321 Domaine de la Fage, INRAE, 12250, Saint-Jean Saint-Paul, France
| | - Dominique Hazard
- GENPHYSE, Université de Toulouse, INRAE, ENVT, 24 chemin de Borde Rouge, CS 52627, F-31326, Castanet-Tolosan, France.
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Association between SNPs in Leptin Pathway Genes and Anthropometric, Biochemical, and Dietary Markers Related to Obesity. Genes (Basel) 2022; 13:genes13060945. [PMID: 35741707 PMCID: PMC9222344 DOI: 10.3390/genes13060945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/16/2022] [Accepted: 05/19/2022] [Indexed: 02/04/2023] Open
Abstract
Obesity is one of the main public health problems in Mexico and the world and one from which a large number of pathologies derive. Single nucleotide polymorphisms (SNPs) of various genes have been studied and proven to contribute to the development of multiple diseases. SNPs of the leptin pathway have been associated with the control of hunger and energy expenditure as well as with obesity and type 2 diabetes mellitus. Therefore, the present work focused on determining the association between anthropometric markers and biochemical and dietary factors related to obesity and SNPs of leptin pathway genes, such as the leptin gene (LEP), the leptin receptor (LEPR), proopiomelanocortin (POMC), prohormone convertase 1 (PCSK1), and the melanocortin 4 receptor (MC4R). A population of 574 young Mexican adults of both sexes, aged 19 years old on average and without metabolic disorders previously diagnosed, underwent a complete medical and nutritional evaluation, biochemical determination, and DNA extraction from the blood; DNA samples were subsequently genotyped. Association analyses between anthropometric, biochemical, and dietary variables with SNPs were performed using binary logistic regressions (p-value = 0.05). Although the sampled population did not have previously diagnosed diseases, the evaluation results showed that 33% were overweight or obese according to BMI and 64% had non-clinically elevated levels of body fat. From the 74 SNP markers analyzed from the five previously mentioned genes, 62 showed polymorphisms within the sampled population, and only 35 of these had significant associations with clinical variables. The risk associations (OR > 1) occurred between clinical markers with elevated values for waist circumference, waist−height index, BMI, body fat percentage, glucose levels, insulin levels, HOMA-IR, triglyceride levels, cholesterol levels, LDL-c, low HDL-c, carbohydrate intake, and protein intake and SNPs of the LEP, LEPR, PCSK1, and MC4R genes. On the other hand, the protective associations (OR < 1) were associated with markers including elevated values for insulin, HOMA-IR, cholesterol, c-LDL, energy intake > 2440 Kcal/day, and lipid intake and SNPs of the LEP and LEPR genes and POMC. The present study describes associations between SNPs in leptin pathway genes, revealing positive and negative interactions between reported SNPs and the clinical markers related to obesity in a sampled Mexican population. Hence, our results open the door for the further study of new genetic variants and their influence on obesity.
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Boiko AS, Pozhidaev IV, Paderina DZ, Mednova IA, Goncharova AA, Fedorenko OY, Kornetova EG, Semke AV, Bokhan NA, Loonen AJM, Ivanova SA. Gene Polymorphisms of Hormonal Regulators of Metabolism in Patients with Schizophrenia with Metabolic Syndrome. Genes (Basel) 2022; 13:genes13050844. [PMID: 35627229 PMCID: PMC9141866 DOI: 10.3390/genes13050844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 05/04/2022] [Accepted: 05/06/2022] [Indexed: 12/15/2022] Open
Abstract
Background: Metabolic syndrome (MetS) is a common complication of long-term treatment of persons with schizophrenia taking (atypical) antipsychotics. In this study, we investigated the existence of an association with polymorphisms of genes for four hormones that regulate energy metabolism. Methods: We recruited 517 clinically admitted white patients (269M/248F) with a verified diagnosis of schizophrenia (ICD-10) and with a stable physical condition. Participants were classified for having or not having MetS and genotyped for 20 single-nucleotide polymorphisms (SNPs) in the genes encoding insulin-induced gene 2 (INSIG2), ghrelin (GHRL), leptin (LEP), and leptin receptor (LEPR). Results: The 139 patients (26.9%) with MetS were significantly more likely to be women, older, and ill longer, and had a larger body mass index (BMI). Four polymorphisms (rs10490624, rs17587100, rs9308762, and rs10490816) did not meet the Hardy–Weinberg equilibrium (HWE) criterion and were excluded. Only genotypes and alleles of the rs3828942 of LEP gene (chi2 = 7.665, p = 0.022; chi2 = 5.136, p = 0.023) and the genotypes of the rs17047718 of INSIG2 gene (chi2 = 7.7, p = 0.021) had a significant association with MetS. Conclusions: The results of our study suggest that the LEP and INSIG2 genes play a certain causal role in the development of MetS in patients with schizophrenia.
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Affiliation(s)
- Anastasiia S. Boiko
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, 634014 Tomsk, Russia; (A.S.B.); (I.V.P.); (D.Z.P.); (I.A.M.); (A.A.G.); (O.Y.F.); (E.G.K.); (A.V.S.); (N.A.B.); (S.A.I.)
| | - Ivan V. Pozhidaev
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, 634014 Tomsk, Russia; (A.S.B.); (I.V.P.); (D.Z.P.); (I.A.M.); (A.A.G.); (O.Y.F.); (E.G.K.); (A.V.S.); (N.A.B.); (S.A.I.)
| | - Diana Z. Paderina
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, 634014 Tomsk, Russia; (A.S.B.); (I.V.P.); (D.Z.P.); (I.A.M.); (A.A.G.); (O.Y.F.); (E.G.K.); (A.V.S.); (N.A.B.); (S.A.I.)
| | - Irina A. Mednova
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, 634014 Tomsk, Russia; (A.S.B.); (I.V.P.); (D.Z.P.); (I.A.M.); (A.A.G.); (O.Y.F.); (E.G.K.); (A.V.S.); (N.A.B.); (S.A.I.)
| | - Anastasya A. Goncharova
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, 634014 Tomsk, Russia; (A.S.B.); (I.V.P.); (D.Z.P.); (I.A.M.); (A.A.G.); (O.Y.F.); (E.G.K.); (A.V.S.); (N.A.B.); (S.A.I.)
| | - Olga Yu. Fedorenko
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, 634014 Tomsk, Russia; (A.S.B.); (I.V.P.); (D.Z.P.); (I.A.M.); (A.A.G.); (O.Y.F.); (E.G.K.); (A.V.S.); (N.A.B.); (S.A.I.)
| | - Elena G. Kornetova
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, 634014 Tomsk, Russia; (A.S.B.); (I.V.P.); (D.Z.P.); (I.A.M.); (A.A.G.); (O.Y.F.); (E.G.K.); (A.V.S.); (N.A.B.); (S.A.I.)
- Department of Psychiatry, Addictology and Psychotherapy, Siberian State Medical University, 634050 Tomsk, Russia
| | - Arkadiy V. Semke
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, 634014 Tomsk, Russia; (A.S.B.); (I.V.P.); (D.Z.P.); (I.A.M.); (A.A.G.); (O.Y.F.); (E.G.K.); (A.V.S.); (N.A.B.); (S.A.I.)
| | - Nikolay A. Bokhan
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, 634014 Tomsk, Russia; (A.S.B.); (I.V.P.); (D.Z.P.); (I.A.M.); (A.A.G.); (O.Y.F.); (E.G.K.); (A.V.S.); (N.A.B.); (S.A.I.)
- Department of Psychiatry, Addictology and Psychotherapy, Siberian State Medical University, 634050 Tomsk, Russia
| | - Anton J. M. Loonen
- Unit of PharmacoTherapy, -Epidemiology, and -Economics, Groningen Research Institute of Pharmacy, Faculty of Science and Engineering, University of Groningen, 9713AV Groningen, The Netherlands
- Correspondence:
| | - Svetlana A. Ivanova
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, 634014 Tomsk, Russia; (A.S.B.); (I.V.P.); (D.Z.P.); (I.A.M.); (A.A.G.); (O.Y.F.); (E.G.K.); (A.V.S.); (N.A.B.); (S.A.I.)
- Department of Psychiatry, Addictology and Psychotherapy, Siberian State Medical University, 634050 Tomsk, Russia
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Nonino CB, Barato M, Ferreira FC, Delfino HBP, Noronha NY, Nicoletti CF, Junior WS, Welendorf CR, Souza DRS, Ferreira-Julio MA, Watanabe LM, de Souza Pinhel MA. DRD2 and BDNF polymorphisms are associated with binge eating disorder in patients with weight regain after bariatric surgery. Eat Weight Disord 2022; 27:1505-1512. [PMID: 34478125 DOI: 10.1007/s40519-021-01290-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 08/06/2021] [Indexed: 12/23/2022] Open
Abstract
AIM The aim of this study was to analyze the association and susceptibility of Single Nucleotide Polymorphisms (SNPs) in the DRD2 and BDNF genes with BED in patients with weight regain in the postoperative period of bariatric surgery. METHODS One hundred and seventy-seven individuals who underwent bariatric surgery with weight regain were evaluated and divided into two groups according to the BED diagnostic. The individuals were submitted to an anthropometric evaluation, analysis of the presence of BED using a validated questionnaire, and blood collection for genotyping of the polymorphisms rs6265 (BDNF) and rs1800497 (DRD2) by real-time polymerase chain reaction (RT-PCR). RESULTS The presence of wild-type alleles for rs1800497 (CC) and rs6265 (GG) was more frequent in patients without BED. Nevertheless, the presence of one or two variant alleles for rs1800497 (CT + TT) and rs6265 (GA + AA) was more frequent in patients with BED. The combination of the two studied SNPs prevailed in patients with BED. CONCLUSIONS The presence of allele frequency of rs1800497 SNP in the DRD2 gene and rs6265 SNP in the BDNF gene, isolated and/or combined, indicated an additional risk for the development of BED in patients with obesity, especially in the context of weight regain. LEVEL OF EVIDENCE III (evidence obtained from the case-control analytic study).
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Affiliation(s)
- Carla Barbosa Nonino
- Laboratory of Nutrigenomic Studies, FMRP/USP, Department of Health Sciences, Ribeirao Preto Medical School, University of Sao Paulo, Av Bandeirantes, 3900, Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil.
| | - Mariana Barato
- Department of Molecular Biology, Sao Jose Do Rio Preto Medical School, São José Do Rio Preto, SP, Brazil
| | - Flávia Campos Ferreira
- Laboratory of Nutrigenomic Studies, FMRP/USP, Department of Health Sciences, Ribeirao Preto Medical School, University of Sao Paulo, Av Bandeirantes, 3900, Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
| | - Heitor Bernardes Pereira Delfino
- Laboratory of Nutrigenomic Studies, FMRP/USP, Department of Health Sciences, Ribeirao Preto Medical School, University of Sao Paulo, Av Bandeirantes, 3900, Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
| | - Natalia Yumi Noronha
- Laboratory of Nutrigenomic Studies, FMRP/USP, Department of Health Sciences, Ribeirao Preto Medical School, University of Sao Paulo, Av Bandeirantes, 3900, Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
| | - Carolina Ferreira Nicoletti
- Laboratory of Nutrigenomic Studies, FMRP/USP, Department of Health Sciences, Ribeirao Preto Medical School, University of Sao Paulo, Av Bandeirantes, 3900, Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
| | - Wilson Salgado Junior
- Department of Surgery and Anatomy, Ribeirao Preto Medical School, Ribeirão Preto, SP, Brazil
| | - Caroline Rossi Welendorf
- Laboratory of Nutrigenomic Studies, FMRP/USP, Department of Health Sciences, Ribeirao Preto Medical School, University of Sao Paulo, Av Bandeirantes, 3900, Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
| | - Doroteia Rossi Silva Souza
- Department of Molecular Biology, Sao Jose Do Rio Preto Medical School, São José Do Rio Preto, SP, Brazil
| | | | - Ligia Moriguchi Watanabe
- Laboratory of Nutrigenomic Studies, FMRP/USP, Department of Health Sciences, Ribeirao Preto Medical School, University of Sao Paulo, Av Bandeirantes, 3900, Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
| | - Marcela Augusta de Souza Pinhel
- Laboratory of Nutrigenomic Studies, FMRP/USP, Department of Health Sciences, Ribeirao Preto Medical School, University of Sao Paulo, Av Bandeirantes, 3900, Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
- Department of Molecular Biology, Sao Jose Do Rio Preto Medical School, São José Do Rio Preto, SP, Brazil
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Novais PFS, Crisp AH, Leandro-Merhi VA, Cintra RMG, Rasera I, Oliveira MRMD. Genetic polymorphisms are not associated with energy intake one year after Roux-Y gastric bypass (RYGB) in women. J Hum Nutr Diet 2021; 35:739-747. [PMID: 34935211 DOI: 10.1111/jhn.12984] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 12/09/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND This study aimed to investigate the influence of food intake on body weight loss and the association of gene polymorphisms, 1 year after Roux-en-Y gastric bypass (RYGB) surgery. METHODS In total, ninety-five obese women (age ranged 20-50 years) in a Brazilian cohort underwent RYGB surgery and completed the study. Anthropometric measurements and food intake were assessed before and 1 year after surgery. Twelve gene polymorphisms (GHRL rs26802; GHSR rs572169; LEP rs7799039; LEPR rs1137101; 5-HT2C rs3813929; UCP2 rs659366; UCP2 rs660339; UCP3 rs1800849; SH2B1 rs7498665; TAS1R2 rs35874116; TAS1R2 rs9701796; and FTO rs9939609) were determined using a real-time PCR reaction and a TaqMan assay. The subjects were divided into quartiles regarding to percentage of excess weight loss (%EWL). The effect of genetic variants on energy and macronutrient intake was evaluated by simple logistic regression, followed by multiple logistic regression. RESULTS It was found that subjects in the first and second quartile showed a higher initial body mass index (BMI). Energy and macronutrient intake before and 1 year after RYGB surgery did not differ between the %EWL quartiles. None of gene polymorphisms investigated showed an association with the estimated energy intake 1 year after surgery. CONCLUSION In conclusion, the estimate energy and food intake did not predict a greater body weight loss 1 year after RYGB surgery. In addition, the 12 gene polymorphism investigated did not affect the energy intake among female patients. This article is protected by copyright. All rights reserved.
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Affiliation(s)
| | | | | | | | - Irineu Rasera
- Clínica Bariátrica de Piracicaba, Piracicaba, SP, Brazil
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12
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Al-Homedi Z, Afify N, Memon M, Alsafar H, Tay G, Jelinek HF, Mousa M, Abu-Samra N, Osman W. Genetic Studies of Metabolic Syndrome in Arab Populations: A Systematic Review and Meta-Analysis. Front Genet 2021; 12:733746. [PMID: 34868209 PMCID: PMC8637276 DOI: 10.3389/fgene.2021.733746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 10/20/2021] [Indexed: 12/25/2022] Open
Abstract
Background: The metabolic syndrome (MetS) is prevalent in Arabian populations. Several small-scale studies have been performed to investigate the genetic basis of MetS. This systematic review and meta-analysis aimed to examine whether candidate gene polymorphisms are associated with MetS susceptibility among ethnic groups of the Arabian world and to suggest possible directions for future research regarding genetic markers and MetS. Methods: A search was conducted for peer-reviewed articles that examined the genetic association of MetS in Arabian populations in the following databases: Medline, Embase, Scopus, Direct Science, Web of Science, ProQuest, and Google Scholar until March 31, 2021. Articles were eligible if they were case-control studies, which investigated MetS as a dichotomous outcome (MetS vs no MetS). To assess the quality of the studies, the Q-Genie tool (Quality of Genetic Association Studies) was used. A non-central chi2 (random-effect) distribution was used to determine the heterogeneity (H) of Q and I (Galassi et al., The American journal of medicine, 2006, 119, 812–819) statistics. Results: Our search strategy identified 36 studies that met our inclusion criteria. In most cases, studies were excluded due to a lack of statistical information such as odds ratios, confidence intervals, and p-values. According to the Q-Genie tool, 12 studies scored poorly (a score of≤35), 13 studies scored moderately ( >35 and≤45), and 12 studies had good quality ( >45 or higher). The most frequently studied genes were FTO and VDR (both included in four studies). Three SNPs indicated increased risk for MetS after calculating the pooled odds ratios: FTO-rs9939609 (odds ratio 1.49, 95% CI: 0.96–2.32); LEP-rs7799039 (odds ratio 1.85, 95% CI: 1.37–2.5); and SERPINA12-rs2236242 (odds ratio 1.65, 95% CI: 1.21–2.24). Meta-analysis studies showed no significant heterogeneity. Conclusion: There were many sources of heterogeneity in the study settings. Most of the studies had low to moderate quality because of sample size and power issues, not considering all potential sources of bias, and not providing details about genotyping methods and results. As most studies were small-scale, aimed to replicate findings from other populations, we did not find any unique genetic association between MetS and Arabian populations.
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Affiliation(s)
- Zahrah Al-Homedi
- College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Nariman Afify
- College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Mashal Memon
- College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Habiba Alsafar
- Center for Biotechnology, Khalifa University, Abu Dhabi, United Arab Emirates.,Department of Genetics and Molecular Biology, College of Medicine and Health Sciences, Abu Dhabi, United Arab Emirates.,Department of Biomedical Engineering, College of Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Guan Tay
- Department of Psychiatry, UWA Medical School, The University of Western Australia, Nedlands, WA, Australia.,School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Herbert F Jelinek
- Department of Biomedical Engineering, College of Engineering, Khalifa University, Abu Dhabi, United Arab Emirates.,Health Innovation Engineering Center, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Mira Mousa
- Center for Biotechnology, Khalifa University, Abu Dhabi, United Arab Emirates.,Nuffield Department of Women's and Reproduction Health, Oxford University, Oxford, United Kingdom
| | - Nadia Abu-Samra
- Department of Biology, College of Arts and Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Wael Osman
- Center for Biotechnology, Khalifa University, Abu Dhabi, United Arab Emirates.,Department of Biology, College of Arts and Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
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Gasmi A, Mujawdiya PK, Noor S, Piscopo S, Menzel A. Lifestyle Genetics-Based Reports in the Treatment of Obesity. ARCHIVES OF RAZI INSTITUTE 2021; 76:707-719. [PMID: 35096307 PMCID: PMC8790989 DOI: 10.22092/ari.2021.356057.1768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 10/12/2021] [Indexed: 10/07/2022]
Abstract
Obesity becomes a chronic disease due to the increasing number of mortality and morbidity cases around the world. In most regions, chronic illnesses, such as obesity, are important sources of morbidity and mortality. Due to a lack of effective strategies for prevention and management, the adverse effects of obesity and related diseases on health continue to be a serious problem. Relevant information was searched from Google Scholar, Scopus, and PubMed using such different terms as "Obesity", "Obesity Management", "Obesity AND Physical activity", "Obesity AND Genetics", "Obesity AND Diet", and "Obesity AND Nutrigenomics". Obesity is characterized by a complex interaction of hereditary and lifestyle factors, which includes food. Diet is an environmental element that plays an important and considerable role in the management of health and reduces the risk of obesity and its comorbidities. Changes in lifestyle patterns not only help burn extra calories but also prevent the development of obesity via its modulating effect on genetic factors. Different people respond differently to an obesogenic environment. The notion of nutrigenetics emerged as a result of various genetic variations that may explain this heterogeneity. Nutritional genomics, also known as nutrigenetics, is the study that investigates and analyses gene variations linked to varied responses to certain foods; moreover, it links this variation to diseases, such as obesity. As a result, tailored nutrition advice based on a person's genetic profile may improve the outcomes of a specific dietary strategy and offer a novel dietary strategy to improve life quality and preventing obesity. This study concluded that physical activity and dietary interventions play an effective role in the management of obesity. Moreover, understanding of the function of the most prominent obesity-related genes, as well as the interaction between nutrition and gene expression, will help researchers design personalized treatment strategies for humans.
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Affiliation(s)
- A Gasmi
- Société Francophone de Nutrithérapie et de Nutrigénétique Appliquée, Villeurbanne, France
| | - P K Mujawdiya
- Inochi Care Private Limited, New Delhi-110017, India
| | - S Noor
- Institute of Molecular Biology and Biotechnology, Bahauddin Zakariya University Multan, Pakistan
| | - S Piscopo
- Société Francophone de Nutrithérapie et de Nutrigénétique Appliquée, Villeurbanne, France
- Research and Development Department, Nutri-Logics SA, Weiswampach, Luxembourg
| | - A Menzel
- Laboratoires Réunis, Junglinster, Luxembourg
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Abstract
Obesity is as a global health problem due to its interaction with complex chronic disorders such as cardiovascular disorders, type 2 diabetes mellitus (T2DM) and cancer. Despite the fact that pathogenesis of obesity is not yet clearly understood, it is associated with a combination of psychological, environmental and various genetic factors. Here, employing a case-control design, we aimed to examine the effects of the GHRL c.152C>T (p.Arg51Gln) (rs34911341) and c.214G>T (p.Leu72Met) (rs696217) markers on susceptibility to obesity in a Turkish-Cypriot population, as well as to evaluate whether these markers affect biochemical parameters and show their putative functional consequences. This study involved 211 Turkish-Cypriot subjects (106 obese and 95 non obese). Genotyping for the GHRL gene polymorphisms was performed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis. Our results indicate that the GHRL Leu72Met polymorphism was found to be significantly higher in obese patients, with respect to genotypic (p = 0.0012) and allelic (p = 0.0005) frequencies. Strikingly, the rs696217 GT genotype (heterozygous) had significantly lower serum high-density lipoprotein cholesterol (HDL-C) (p = 0.015) than GG (wild type) genotypes. Overall, Leu72Met susceptibility variant may be considered as risk and crucial marker for both obesity and cholesterol metabolism in the community of Turkish-Cypriots. Thus, the dual effect of the GHRL gene Leu72Met variant may be used for clinical diagnosis.
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15
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Ricci C, Marzocchi C, Riolo G, Ciuoli C, Benenati N, Bufano A, Tirone A, Voglino C, Vuolo G, Castagna MG, Cantara S. The impact of CPT1B rs470117, LEPR rs1137101 and BDNF rs6265 polymorphisms on the risk of developing obesity in an Italian population. Obes Res Clin Pract 2021; 15:327-333. [PMID: 34176754 DOI: 10.1016/j.orcp.2021.06.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 06/16/2021] [Accepted: 06/21/2021] [Indexed: 01/03/2023]
Abstract
OBJECTIVE This study aimed to analyze 11 single nucleotide polymorphisms (SNPs) belonging to 9 genes involved in metabolic pathways (BDNF rs6265; PNPLA3 rs2294918 and rs2076212; CIDEA rs11545881; NTRK2 rs2289658; ALOX12 rs1126667; ALOX12B rs2304908; LEPR rs1137101; CPT1B rs470117 and rs8142477; rs2305507 CPT1A) in obese patients and controls. METHODS Polymorphisms were analyzed in 300 severe obese patients undergoing bariatric surgery (body mass index >30 kg/m2) and 404 control subjects in order to evaluate their association with obesity and clinical variables. RESULTS Our findings showed significant differences for the allelic distributions of CPT1B rs470117 and LEPR rs11371010 in obese subjects compared to controls. The BDNF rs6265 correlates with obesity only when associated with the other two SNPs. In particular, for CPT1B rs470117 and LEPR rs1137101, the rare allele was associated with a reduced risk of developing the obese phenotype, whereas the simultaneous presence of the common C allele for rs470117 and A allele for rs1137101 was more frequent in obese patients (p = 0.002, OR = 1.417). A significant association between CPT1B rs470117 and steatosis was found. Moreover, we observed that by associating the rare allele T of the BDNF rs6265 with the most common alleles of the SNPs CPT1B rs470117 and LEPR rs1137101, the combination of T-C-A alleles was associated with a higher risk of developing an obese phenotype (p = 0.001, OR = 1.6679). CONCLUSIONS Our results suggest that SNPs CPT1B rs470117 and LEPR rs1137101 taken individually and in association with BDNF rs6265 may be involved in an increased risk of developing obese phenotype in an Italian cohort.
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Affiliation(s)
- Claudia Ricci
- Department of Medical, Surgical and Neurological Sciences, University of Siena, Siena, Italy
| | - Carlotta Marzocchi
- Department of Medical, Surgical and Neurological Sciences, University of Siena, Siena, Italy
| | - Giulia Riolo
- Department of Medical, Surgical and Neurological Sciences, University of Siena, Siena, Italy
| | - Cristina Ciuoli
- Department of Medical, Surgical and Neurological Sciences, University of Siena, Siena, Italy
| | - Nicoletta Benenati
- Department of Medical, Surgical and Neurological Sciences, University of Siena, Siena, Italy
| | - Annalisa Bufano
- Department of Medical, Surgical and Neurological Sciences, University of Siena, Siena, Italy
| | - Andrea Tirone
- Department of Surgical Sciences, Bariatric Surgery Unit, University of Siena, Siena, Italy
| | - Costantino Voglino
- Department of Surgical Sciences, Bariatric Surgery Unit, University of Siena, Siena, Italy
| | - Giuseppe Vuolo
- Department of Surgical Sciences, Bariatric Surgery Unit, University of Siena, Siena, Italy
| | - Maria Grazia Castagna
- Department of Medical, Surgical and Neurological Sciences, University of Siena, Siena, Italy
| | - Silvia Cantara
- Department of Medical, Surgical and Neurological Sciences, University of Siena, Siena, Italy.
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Impaired Leptin Signalling in Obesity: Is Leptin a New Thermolipokine? Int J Mol Sci 2021; 22:ijms22126445. [PMID: 34208585 PMCID: PMC8235268 DOI: 10.3390/ijms22126445] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 06/03/2021] [Accepted: 06/10/2021] [Indexed: 12/17/2022] Open
Abstract
Leptin is a principal adipose-derived hormone mostly implicated in the regulation of energy balance through the activation of anorexigenic neuronal pathways. Comprehensive studies have established that the maintenance of certain concentrations of circulating leptin is essential to avoid an imbalance in nutrient intake. Indeed, genetic modifications of the leptin/leptin receptor axis and the obesogenic environment may induce changes in leptin levels or action in a manner that accelerates metabolic dysfunctions, resulting in a hyperphagic status and adipose tissue expansion. As a result, a vicious cycle begins wherein hyperleptinaemia and leptin resistance occur, in turn leading to increased food intake and fat enlargement, which is followed by leptin overproduction. In addition, in the context of obesity, a defective thermoregulatory response is associated with impaired leptin signalling overall within the ventromedial nucleus of the hypothalamus. These recent findings highlight the role of leptin in the regulation of adaptive thermogenesis, thus suggesting leptin to be potentially considered as a new thermolipokine. This review provides new insight into the link between obesity, hyperleptinaemia, leptin resistance and leptin deficiency, focusing on the ability to restore leptin sensitiveness by way of enhanced thermogenic responses and highlighting novel anti-obesity therapeutic strategies.
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Diéguez-Campa CE, Angel-Chávez LI, Reyes-Ruvalcaba D, Talavera-Zermeño MJ, Armendáriz-Cabral DA, Torres-Muro D, Pérez-Neri I. Leptin Levels and Q223R Leptin Receptor Gene Polymorphism in Obese Mexican Young Adults. EJIFCC 2020; 31:197-207. [PMID: 33061875 PMCID: PMC7545130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION The Q223R polymorphism of the leptin receptor (LEPR) gene is one of the most common polymorphisms and it is believed to be associated with a damaged capacity of LEPR signaling and with high circulating leptin levels. METHODS An observational, cross-sectional, analytical study was carried out in the Autonomous University of Ciudad Juarez, Mexico, where a sample of young adult participants (ranging from 18 to 30 years of age) was obtained. They were classified based on the results of body mass index: non-obese, and overweight/obese. The polymorphic variant was determined by Polymerase Chain Reaction (PCR) from the DNA sample and serum leptin levels were measured by Enzyme-Linked Immuno Sorbent Assay. RESULTS A total of 159 participants were included (non-obese, n=103; overweight/obese, n=56). Leptin levels were 15.14±12.3 ng/mL in the non-obese group and 26.13±19.0 ng/mL in the overweight/obese group (p≤0.001). The allelic frequencies of the Q and R alleles of the LEPR gene in the studied subjects were as follows: non-obese, Q=0.56, R=0.44; overweight/obese, Q=0.62, R=0.38. The relative risk for the Q/Q genotype was 1.18 (Cl 0.53-2.34), for Q/R was 1.14 (Cl 0.59-2.18) and for R/R was 0.59 (Cl 0.23-1.50). CONCLUSIONS This study shows that leptin levels are associated with overweight/obesity in Mexican young adults, but this is not related to the presence of the Q223R polymorphism in the LEPR gene, so the underlying mechanisms for a possible disturbance in leptin signaling in obese Mexican young adults await further studies.
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Affiliation(s)
- Carlos E. Diéguez-Campa
- Institute of Biomedical Sciences, Autonomous University of Ciudad Juarez, Fovisste Chamizal, Ciudad Juárez, Chihuahua, Mexico, Department of Neurochemistry. National Institute of Neurology and Neurosurgery, La Fama, Tlalpan, Mexico City, Mexico
| | - Luis I. Angel-Chávez
- Institute of Biomedical Sciences, Autonomous University of Ciudad Juarez, Fovisste Chamizal, Ciudad Juárez, Chihuahua, Mexico,Corresponding author: Luis I. Angel-Chávez Institute of Biomedical Sciences Autonomous University of Ciudad Juarez Av. Benjamin Franklin 4650 Zona PRONAF Ciudad Juárez 32310, Chihuahua Mexico E-mail:
| | - David Reyes-Ruvalcaba
- Institute of Biomedical Sciences, Autonomous University of Ciudad Juarez, Fovisste Chamizal, Ciudad Juárez, Chihuahua, Mexico
| | - María J. Talavera-Zermeño
- Institute of Biomedical Sciences, Autonomous University of Ciudad Juarez, Fovisste Chamizal, Ciudad Juárez, Chihuahua, Mexico
| | - Diego A. Armendáriz-Cabral
- Institute of Biomedical Sciences, Autonomous University of Ciudad Juarez, Fovisste Chamizal, Ciudad Juárez, Chihuahua, Mexico
| | - Dayanara Torres-Muro
- Institute of Biomedical Sciences, Autonomous University of Ciudad Juarez, Fovisste Chamizal, Ciudad Juárez, Chihuahua, Mexico
| | - Iván Pérez-Neri
- Department of Neurochemistry. National Institute of Neurology and Neurosurgery, La Fama, Tlalpan, Mexico City, Mexico
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Garavito P, Mosquera-Heredia MI, Fang L, Payares F, Ruiz M, Arias I, Tuesca R, Navarro É, Silvera-Redondo C. Polymorphisms of leptin-melanocortin system genes associated with obesity in an adult population from Barranquilla. BIOMEDICA : REVISTA DEL INSTITUTO NACIONAL DE SALUD 2020; 40:257-269. [PMID: 32673455 PMCID: PMC7505507 DOI: 10.7705/biomedica.4827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 08/21/2019] [Indexed: 11/11/2022]
Abstract
Introduction: Obesity is considered a serious public health problem. Efforts have been directed to search for candidate genes such as LEP, LEPR, and MC4R involved in the leptin-melanocortin system. The neuroendocrine regulation of these genes on energy intake and balance influences the pathogenesis of this disease. Contradictory results regarding the association of these genes with obesity raise the need for new research. Objective: To analyze the association between obesity and LEP rs2167270, LEPR rs1137101, and MC4R rs17782313 polymorphisms and the clinical and biochemical variables in obese adults from Barranquilla, Colombia. Materials and methods: We analyzed 111 obese adults and 155 non-obese individuals as controls. The polymorphisms were determined by real-time PCR. Besides, anthropometric measures, blood pressure, and biochemical tests were evaluated. Results: No statistical differences were found in allele and genotype frequencies of gene polymorphisms between groups. The CC genotype of MC4R rs17782313 polymorphism was associated with increased systolic blood pressure and T allele and TT genotype, with decreased HDL cholesterol in obese adults. The effect of the other polymorphisms on these variables was not evidenced. Conclusions: LEP rs2167270, LEPR rs1137101, and MC4R rs17782313 polymorphisms were not associated with obesity in the population under study. MC4R rs17782313 polymorphisms were associated with an increase in systolic blood pressure and a decrease in HDL cholesterol.
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Affiliation(s)
- Pilar Garavito
- Grupo de Investigación Genética y Medicina Molecular, Departamento de Medicina, Universidad del Norte, Barranquilla, Colombia.
| | - María Isabel Mosquera-Heredia
- Grupo de Investigación Genética y Medicina Molecular, Departamento de Medicina, Universidad del Norte, Barranquilla, Colombia.
| | - Luis Fang
- Grupo de Investigación Genética y Medicina Molecular, Departamento de Medicina, Universidad del Norte, Barranquilla, Colombia.
| | - Fausto Payares
- Grupo de Investigación Genética y Medicina Molecular, Departamento de Medicina, Universidad del Norte, Barranquilla, Colombia.
| | - Martha Ruiz
- Grupo de Investigación Genética y Medicina Molecular, Departamento de Medicina, Universidad del Norte, Barranquilla, Colombia.
| | - Isis Arias
- Grupo de Investigación Genética y Medicina Molecular, Departamento de Medicina, Universidad del Norte, Barranquilla, Colombia.
| | - Rafael Tuesca
- Grupo de Investigación Proyecto UNI, Departamento de Salud Pública, Universidad del Norte, Barranquilla, Colombia.
| | - Édgar Navarro
- Grupo de Investigación Proyecto UNI, Departamento de Salud Pública, Universidad del Norte, Barranquilla, Colombia.
| | - Carlos Silvera-Redondo
- Grupo de Investigación Genética y Medicina Molecular, Departamento de Medicina, Universidad del Norte, Barranquilla, Colombia.
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Seoane-Collazo P, Martínez-Sánchez N, Milbank E, Contreras C. Incendiary Leptin. Nutrients 2020; 12:nu12020472. [PMID: 32069871 PMCID: PMC7071158 DOI: 10.3390/nu12020472] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/06/2020] [Accepted: 02/08/2020] [Indexed: 02/08/2023] Open
Abstract
Leptin is a hormone released by adipose tissue that plays a key role in the control of energy homeostasis through its binding to leptin receptors (LepR), mainly expressed in the hypothalamus. Most scientific evidence points to leptin’s satiating effect being due to its dual capacity to promote the expression of anorexigenic neuropeptides and to reduce orexigenic expression in the hypothalamus. However, it has also been demonstrated that leptin can stimulate (i) thermogenesis in brown adipose tissue (BAT) and (ii) the browning of white adipose tissue (WAT). Since the demonstration of the importance of BAT in humans 10 years ago, its study has aroused great interest, mainly in the improvement of obesity-associated metabolic disorders through the induction of thermogenesis. Consequently, several strategies targeting BAT activation (mainly in rodent models) have demonstrated great potential to improve hyperlipidemias, hepatic steatosis, insulin resistance and weight gain, leading to an overall healthier metabolic profile. Here, we review the potential therapeutic ability of leptin to correct obesity and other metabolic disorders, not only through its satiating effect, but by also utilizing its thermogenic properties.
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Affiliation(s)
- Patricia Seoane-Collazo
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
- CIMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, 15782 Santiago de Compostela, Spain;
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 15706 Santiago de Compostela, Spain
- Correspondence: (P.S.-C.); (N.M.-S.); (C.C.); Tel.: +81-298-533-301 (P.S.-C.); +34-913-941-650 (N.M.-S.); +44-01865285890 (C.C.)
| | - Noelia Martínez-Sánchez
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX1 3PT, UK
- Correspondence: (P.S.-C.); (N.M.-S.); (C.C.); Tel.: +81-298-533-301 (P.S.-C.); +34-913-941-650 (N.M.-S.); +44-01865285890 (C.C.)
| | - Edward Milbank
- CIMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, 15782 Santiago de Compostela, Spain;
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 15706 Santiago de Compostela, Spain
| | - Cristina Contreras
- Department of Physiology, Pharmacy School, Complutense University of Madrid, 28040 Madrid, Spain
- Correspondence: (P.S.-C.); (N.M.-S.); (C.C.); Tel.: +81-298-533-301 (P.S.-C.); +34-913-941-650 (N.M.-S.); +44-01865285890 (C.C.)
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Leptin rs7799039 polymorphism is associated with multiple sclerosis risk in Kuwait. Mult Scler Relat Disord 2019; 36:101409. [DOI: 10.1016/j.msard.2019.101409] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 08/28/2019] [Accepted: 09/23/2019] [Indexed: 12/14/2022]
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Dietary patterns modify the association between fat mass and obesity-associated genetic variants and changes in obesity phenotypes. Br J Nutr 2019; 121:1247-1254. [PMID: 30929646 DOI: 10.1017/s0007114519000643] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The present study investigated whether dietary patterns could interact with fat mass and obesity-associated (FTO) polymorphisms in relation to changes in BMI and waist circumference (WC) over 3⋅6 years of follow-up. Subjects were selected from participants of the Tehran Lipid and Glucose Study (n 4292, 43⋅2 % male). Dietary data were collected using a valid and reliable FFQ. Dietary patterns were determined using factor analysis. The genotypes of polymorphisms (rs1421085, rs1121980, rs17817449, rs8050136, rs9939973 and rs3751812) were determined. Genetic risk score (GRS) was calculated using the weighted method. Mean ages of men and women were 42·6 (sd 14) and 40⋅4 (sd 13) years, respectively. The healthy (e.g. vegetables and fruits) and the Western dietary patterns (WDP; e.g. soft drinks and fast foods) were extracted. In carriers of the risk alleles rs1121980, rs1421085, rs8050136, rs1781799 and rs3751812, BMI was approximately 2-fold higher in individuals in the higher quartile of WDP score, compared with the first quartile (P < 0⋅05). WC increased with increasing WDP score in carriers of the risk alleles rs1121980 and rs3751812, but not in individuals who did not carry any risk alleles. BMI and WC increased to a greater extent in the high GRS group while increasing quartiles of the WDP score, compared with the low GRS group (BMI change; Q1: 1⋅04 (se 0⋅34) v. Q4: 2⋅26 (se 0⋅36)) (WC change; Q1: 0⋅47 (se 0⋅32) v. Q4: 0⋅95 (se 0⋅34)) (P interaction < 0⋅05). These results suggest that adults with higher genetic predisposition to obesity are more susceptible to the harmful effects of adherence to the WDP, which emphasised the need to reduce the consumption of unhealthy foods for the prevention of obesity.
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Associations of ADIPOQ and LEP Gene Variants with Energy Intake: A Systematic Review. Nutrients 2019; 11:nu11040750. [PMID: 30935050 PMCID: PMC6520881 DOI: 10.3390/nu11040750] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/21/2019] [Accepted: 03/27/2019] [Indexed: 12/20/2022] Open
Abstract
This systematic review aims to evaluate the association of adiponectin (ADIPOQ) and leptin (LEP) gene variants with energy intake. Cross-sectional, cohort, and case–control studies that reported an association of leptin and/or adiponectin gene variants with energy intake were included in this review. Human studies without any age restrictions were considered eligible. Detailed individual search strategies were developed for each of the following bibliographic databases: Cochrane, Latin American and Caribbean Center on Health Sciences Information (LILACS), PubMed/MEDLINE, Scopus, and Web of Science. Risk of bias assessment was adapted from the Downs and Black scale and was used to evaluate the methodology of the included studies. Seven studies with a pooled population of 2343 subjects were included. The LEP and ADIPOQ gene variants studied were LEP-rs2167270 (k = 1), LEP-rs7799039 (k = 5), ADIPOQ-rs2241766 (k = 2), ADIPOQ-rs17300539 (k = 1), and ADIPOQ marker D3S1262 (k = 1). Two of the seven studies reviewed demonstrated a positive association between the LEP-rs7799039 polymorphism and energy intake. Two other studies—one involving a marker of the ADIPOQ gene and one examining the ADIPOQ-rs17300539 polymorphism—also reported associations with energy intake. More research is needed to further elucidate the contributions of genetic variants to energy metabolism.
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Chen MC, Wang JH, Lee CJ, Hsu BG. Association between hyperleptinemia and cardiovascular outcomes in patients with coronary artery disease. Ther Clin Risk Manag 2018; 14:1855-1862. [PMID: 30319266 PMCID: PMC6171750 DOI: 10.2147/tcrm.s172231] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Purpose Hyperleptinemia has been independently associated with human cardiovascular (CV) diseases. Accordingly, we evaluate the association between serum leptin and future CV events in patients with coronary artery disease (CAD). Patients and methods This study enrolled 98 patients with CAD from January to December 2012. The primary endpoint included incidences of major adverse CV events and hospitalization. Patients follow-up had been completed on June 30, 2017. Results After a median follow-up of 52 months, 43 CV events had occurred. Patients with CV events had higher systolic blood pressure (P = 0.030), total cholesterol (P = 0.034), C-reactive protein (P = 0.018), and serum leptin levels (P = 0.001) than those without CV events. Kaplan–Meier analysis showed greater cumulative incidences of CV events in the high leptin group (median leptin concentration >6.03 ng/mL) than in the low leptin group (log-rank P = 0.012). Multivariate Cox regression analysis showed that triglyceride (HR: 1.010; 95% CI: 1.001–1.018; P = 0.022) and leptin levels (HR: 1.054; 95% CI: 1.026–1.082; P < 0.001) were independently associated with CV events in patients with CAD. Conclusion Serum leptin levels could serve as a biomarker for future CV events in patients with CAD.
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Affiliation(s)
| | - Ji-Hung Wang
- Division of Cardiology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan,
| | - Chung-Jen Lee
- Department of Nursing, Tzu Chi University of Science and Technology, Hualien, Taiwan
| | - Bang-Gee Hsu
- School of Medicine, Tzu Chi University, Hualien, Taiwan, .,Division of Nephrology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan,
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Abstract
PURPOSE OF REVIEW This review aims to present current information on genes underlying severe obesity, with the main emphasis on the three genes LEP, LEPR and MC4R. RECENT FINDINGS There is a substantial amount of evidence that variants in at least ten different genes are the cause of severe monogenic obesity. The majority of these are involved in the leptin-melanocortin signalling pathway. Due to the frequency of some of the identified variants, it is clear that monogenic variants also make a significant contribution to common obesity. The artificial distinction between rare monogenic obesity and common polygenic obesity is now obsolete with the identification of MC4R variants of strong effect in the general population.
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Affiliation(s)
- Una Fairbrother
- School of Human Sciences, London Metropolitan University, North Campus, 166-220 Holloway Road, London, N7 8DB, UK
| | - Elliot Kidd
- School of Human Sciences, London Metropolitan University, North Campus, 166-220 Holloway Road, London, N7 8DB, UK
| | - Tanya Malagamuwa
- Institute of Medical and Biomedical Education, St George's University of London, Cranmer Terrace, Tooting, London, SW17 0RE, UK
| | - Andrew Walley
- Institute of Medical and Biomedical Education, St George's University of London, Cranmer Terrace, Tooting, London, SW17 0RE, UK.
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Effect of dietary energy and polymorphisms in BRAP and GHRL on obesity and metabolic traits. Obes Res Clin Pract 2018; 12:39-48. [DOI: 10.1016/j.orcp.2016.05.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 05/02/2016] [Accepted: 05/09/2016] [Indexed: 12/29/2022]
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Zaharan NL, Muhamad NH, Jalaludin MY, Su TT, Mohamed Z, Mohamed MNA, A. Majid H. Non-Synonymous Single-Nucleotide Polymorphisms and Physical Activity Interactions on Adiposity Parameters in Malaysian Adolescents. Front Endocrinol (Lausanne) 2018; 9:209. [PMID: 29755414 PMCID: PMC5934415 DOI: 10.3389/fendo.2018.00209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 04/13/2018] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Several non-synonymous single-nucleotide polymorphisms (nsSNPs) have been shown to be associated with obesity. Little is known about their associations and interactions with physical activity (PA) in relation to adiposity parameters among adolescents in Malaysia. METHODS We examined whether (a) PA and (b) selected nsSNPs are associated with adiposity parameters and whether PA interacts with these nsSNPs on these outcomes in adolescents from the Malaysian Health and Adolescents Longitudinal Research Team study (n = 1,151). Body mass indices, waist-hip ratio, and percentage body fat (% BF) were obtained. PA was assessed using Physical Activity Questionnaire for Older Children (PAQ-C). Five nsSNPs were included: beta-3 adrenergic receptor (ADRB3) rs4994, FABP2 rs1799883, GHRL rs696217, MC3R rs3827103, and vitamin D receptor rs2228570, individually and as combined genetic risk score (GRS). Associations and interactions between nsSNPs and PAQ-C scores were examined using generalized linear model. RESULTS PAQ-C scores were associated with % BF (β = -0.44 [95% confidence interval -0.72, -0.16], p = 0.002). The CC genotype of ADRB3 rs4994 (β = -0.16 [-0.28, -0.05], corrected p = 0.01) and AA genotype of MC3R rs3827103 (β = -0.06 [-0.12, -0.00], p = 0.02) were significantly associated with % BF compared to TT and GG genotypes, respectively. Significant interactions with PA were found between ADRB3 rs4994 (β = -0.05 [-0.10, -0.01], p = 0.02) and combined GRS (β = -0.03 [-0.04, -0.01], p = 0.01) for % BF. CONCLUSION Higher PA score was associated with reduced % BF in Malaysian adolescents. Of the nsSNPs, ADRB3 rs4994 and MC3R rs3827103 were associated with % BF. Significant interactions with PA were found for ADRB3 rs4994 and combined GRS on % BF but not on measurements of weight or circumferences. Targeting body fat represent prospects for molecular studies and lifestyle intervention in this population.
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Affiliation(s)
- Nur Lisa Zaharan
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- *Correspondence: Nur Lisa Zaharan, ,
| | - Nor Hanisah Muhamad
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | | | - Tin Tin Su
- Centre for Population Health (CePH), Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Zahurin Mohamed
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - M. N. A. Mohamed
- Sports Medicine Unit, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Hazreen A. Majid
- Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, United States
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Jiang S, Venners SA, Li K, Hsu YH, Weinstock J, Zou Y, Pan F, Xu X. Effect modification by region in the associations of LEP G2548A and LEPR Q223R polymorphisms with statin-induced CK elevation. Oncotarget 2017; 8:107565-107576. [PMID: 29296187 PMCID: PMC5746089 DOI: 10.18632/oncotarget.22506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 10/28/2017] [Indexed: 11/25/2022] Open
Abstract
We investigated the associations of LEP G2548A and LEPR Q223R polymorphisms with statin-induced creatine kinase (CK) elevation among Chinese patients with hyperlipidemia. A total of587 enrolled individuals were treated with 20 mg/d oral simvastatin for 8 consecutive weeks. Genotyping of LEP G2548A and LEPR Q223R were conducted using PCR-RFLP. Multiple regression analyses showed that, in the Dongzhi region only, patients carrying the LEP AA genotype had a significantly greater increase in CK levels compared to those carrying the AG+GG genotypes after four weeks (P = 0.004) and eight weeks (P < 0.001) consecutive simvastatin treatment. Patients were further divided into three groups based on the tertiles of the CK distribution. Compared to subjects in the lowest tertile of CK elevation, the adjusted relative odds of having the AG+GG genotypes among subjects in the highest tertile was 0.5 (95% CI, 0.3 to 0.7) and 0.4 (95% CI, 0.2 to 0.6) after the fourth and eighth weeks, respectively. The interaction terms between the Beijing or Dongzhi region and the LEP GA+AA genotypes were marginally significant for CK elevation at the fourth week (P = 0.057) and significant for CK elevation at the eighth week (P = 0.002). The adverse effect of the LEP G2548A polymorphism on increasing CK levels may be dependent on the environmental milieu. It suggests that lifestyle interventions might offset the side effects of simvastatin therapy among those with genetic susceptibility. Further research is needed to identify specific individual-level factors for clinical practice that modify the effect of genotype.
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Affiliation(s)
- Shanqun Jiang
- School of Life Sciences, Anhui University, Hefei, China.,Institute of Biomedicine, Anhui Medical University, Hefei, China
| | - Scott A Venners
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada
| | - Kang Li
- School of Life Sciences, Anhui University, Hefei, China
| | - Yi-Hsiang Hsu
- Institute for Aging Research, HSL and Harvard Medical School, Boston, MA, USA.,Molecular and Integrative Physiological Sciences Program, Harvard School of Public Health, Boston, MA, USA
| | - Justin Weinstock
- Department of Statistics, University of Virginia, Charlottesville, VA, USA
| | - Yanfeng Zou
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
| | - Faming Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
| | - Xiping Xu
- Institute of Biomedicine, Anhui Medical University, Hefei, China.,Division of Epidemiology and Biostatistics, University of Illinois at Chicago School of Public Health, Chicago, IL, USA
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Vitolo E, Santini E, Seghieri M, Giannini L, Coppedè F, Rossi C, Dardano A, Solini A. Heterozygosity for the rs696217 SNP in the Preproghrelin Gene Predicts Weight Loss After Bariatric Surgery in Severely Obese Individuals. Obes Surg 2017; 27:961-967. [PMID: 27681093 DOI: 10.1007/s11695-016-2387-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Several patients encompass a scarce weight loss after Roux-en-Y gastric bypass (RYGB). As such event is not related to surgical complications, finding markers able to identify "well responders" and to predict weight loss outcome is clinically relevant. Ghrelin regulates appetite and energy balance. Common single nucleotide polymorphisms (SNPs) in its encoding genes have been associated with body weight regulation. Other peptides involved in satiety modulation, like the CD40/CD40L complex, are less explored. METHODS One hundred, otherwise healthy, obese subjects (aged 45 ± 11 years, 65 females, BMI 48.0 ± 0.7 kg/m2) were sequentially enrolled in years 2014-2015. SNPs rs2241766 for adiponectin gene, rs490683 for ghrelin receptor, rs696217 and rs27647 for the preproghrelin/ghrelin gene, and rs1126535 for the CD40L gene were determined on DNA extracted from circulating lymphomonocytes. Patients were reevaluated at 6 (n = 100), 26 (n = 91), and 52 weeks (n = 79) after RYGB. RESULTS Subjects carrying the rs696217 T allele encompassed a significantly greater reduction in BMI 52 weeks after surgery (GG vs GT 30.5 ± 1.1 vs 38.1 ± 2.1 %; p < 0.001). Carrying the rs1126535 C allele in the CD40L gene was associated with a significantly lower BMI reduction at week 52 (TT vs CT 33.2 ± 1.1 vs 28.1 ± 2.3 %, p = 0.049). rs490683 and rs27647 SNPs of ghrelin and rs2241766 for adiponectin gene did not show any difference between carriers and non-carriers of the mutant allele. CONCLUSION Carrying a G to T substitution in rs696217 (preproghrelin gene) seems to mark a successful weight loss outcome; we also report for the first time that the rs1126535 C allele (CD40L gene) may predict a worse response to bariatric surgery.
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Affiliation(s)
- Edoardo Vitolo
- Department of Clinical and Experimental Medicine, University of Pisa, I-56126, Pisa, Italy
| | - Eleonora Santini
- Department of Clinical and Experimental Medicine, University of Pisa, I-56126, Pisa, Italy
| | - Marta Seghieri
- Department of Clinical and Experimental Medicine, University of Pisa, I-56126, Pisa, Italy
| | - Livia Giannini
- Department of Clinical and Experimental Medicine, University of Pisa, I-56126, Pisa, Italy
| | - Fabio Coppedè
- Department of Translational Research and New Technologies in Medicine and Surgery, Section of Medical Genetics, University of Pisa, Pisa, Italy
| | - Chiara Rossi
- Department of Clinical and Experimental Medicine, University of Pisa, I-56126, Pisa, Italy
| | - Angela Dardano
- Department of Clinical and Experimental Medicine, University of Pisa, I-56126, Pisa, Italy
| | - Anna Solini
- Department of Clinical and Experimental Medicine, University of Pisa, I-56126, Pisa, Italy.
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Savino F, Rossi L, Di Stasio L, Galliano I, Montanari P, Bergallo M. Mismatch Amplification Mutation Assay Real-Time PCR Analysis of the Leptin Gene G2548A and A19G Polymorphisms and Serum Leptin in Infancy: A Preliminary Investigation. Horm Res Paediatr 2017; 85:318-24. [PMID: 27008407 DOI: 10.1159/000444484] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 02/05/2016] [Indexed: 11/19/2022] Open
Abstract
Leptin is a hormone that regulates food intake and energy metabolism. Its coding gene (LEP) is one of the most promising candidates for obesity. Although some studies have detected associations of different single nucleotide polymorphisms (SNPs) in the LEP gene with serum leptin levels and obesity-related traits, the results are still conflicting. We investigated two SNPs to find relationships with leptin concentrations. Thirty healthy Caucasian infants younger than 6 months were genotyped for the SNPs G2548A and A19G with polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and amplification refractory mutation system-mismatch amplification mutation assay (ARMS- MAMA) real-time PCR, and serum leptin concentrations were measured with a radioimmunoassay method. Considering the significant linkage disequilibrium observed between the two SNPs, we divided the sample according to the number of GG haplotypes and observed that individuals homozygous for the GG haplotype had higher serum leptin levels in early infancy than the others. Although these preliminary results are based on a limited sample, they suggest that the genetic background seems to play a role in modulating leptin levels in infancy, but changes in leptin levels over infancy and their correlation with obesity need to be further explored. We describe an ARMS-MAMA real-time PCR procedure which could be profitably applied in routine genetic screening.
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Affiliation(s)
- Francesco Savino
- Regina Margherita Children's Hospital, Cittx00E0; della Salute e della Scienza di Torino, Turin, Italy
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LEP rs7799039, LEPR rs1137101, and ADIPOQ rs2241766 and 1501299 Polymorphisms Are Associated With Obesity and Chemotherapy Response in Mexican Women With Breast Cancer. Clin Breast Cancer 2017; 17:453-462. [PMID: 28416193 DOI: 10.1016/j.clbc.2017.03.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Revised: 02/17/2017] [Accepted: 03/14/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Obesity plays a major role in the pathogenesis of breast cancer. Leptin (LEP) and adiponectin (ADIPOQ) are important in the regulation of adipose tissue. The response to cancer treatment depends on the histological and molecular tumor type, clinical stage, and genetic variability that might promote carcinogenic development. The aim of this study was to investigate the association between overweight/obesity and polymorphisms in the LEP (rs7799039), LEP receptor (LEPR; rs1137101), and ADIPOQ genes (rs2241766, rs1501299) with the response to breast cancer treatment in Mexican women. PATIENTS AND METHODS A sample of 177 patients with primary breast cancer (stage I-III) and who received neoadjuvant therapy were included. Polymorphisms were genotyped and their serum LEP concentrations (n = 59) were quantified. RESULTS The patients' median age was 53.1 years, the frequency of overweight and obesity was 57 and 84 patients, respectively, 117 were postmenopausal, and 64 of the patients did not respond to chemotherapy. An association of the LEP rs7799039, LEPR rs1137101, and ADIPOQ rs1501299 polymorphisms with overweight/obesity was found. The patients who did not respond to treatment were more frequently obese, at clinical stage III, had metastases, and high levels of glucose. Moreover, in samples that were positive for estrogen receptor, higher levels of LEP were found, and in wild type genotypes for LEP rs7799039 and LEPR rs1137101. CONCLUSION There was a direct association between the polymorphisms in LEP rs7799039 and ADIPOQ rs1501299 with overweight/obesity, and these genotypes affected the response to chemotherapeutic treatment, suggesting that an obesogenic microenvironment is more favorable for tumoral progression.
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The obestatin/ghrelin ratio and ghrelin genetics in adult celiac patients before and after a gluten-free diet, in irritable bowel syndrome patients and healthy individuals. Eur J Gastroenterol Hepatol 2017; 29:160-168. [PMID: 27750262 DOI: 10.1097/meg.0000000000000760] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Ghrelin levels and obestatin/ghrelin ratio have been proposed as activity markers in ulcerative colitis, but no data are available in celiac disease (CD) and irritable bowel syndrome (IBS). Our aims were as follows: (a) to assess obestatin and ghrelin concentrations in adult active CD patients, diarrhea-predominant IBS (IBS-d), and healthy controls (HC) in relation to intestinal permeability; (b) to evaluate the ghrelin-obestatin profile in CD patients after a 1-year gluten-free diet (GFD); and (c) to establish the impact of ghrelin genetics. METHODS The study included 31 CD patients, 28 IBS-d patients, and 19 HC. Intestinal permeability, assayed by high-performance liquid chromatography determination of urinary lactulose (La)/mannitol (Ma), and circulating concentrations of obestatin, ghrelin, and their ratio were evaluated at enrollment and after GFD. The ghrelin single nucleotide polymorphisms Arg51Gln (rs34911341), Leu72Met (rs696217), and Gln90Leu (rs4684677) were analyzed. RESULTS Intestinal permeability was impaired in CD patients and ameliorated after GFD. Ghrelin was significantly (P=0.048) higher and the obestatin/ghrelin ratio was significantly (P=0.034) lower in CD patients compared with both IBS-d and HC, and GFD reduced the peptide levels, but without reaching the concentrations in HC. Significant differences (P<0.05) were found in the Leu72Met polymorphism among groups, with the reduction of the GT genotype and the T allele in both CD and IBS-d patients compared with HC. CONCLUSION Intestinal permeability is altered in CD, but not in IBS-d patients, and ghrelin levels increase in CD patients as observed in other inflammatory conditions. Moreover, a role for ghrelin genetics is hypothesized in sustaining the many pathogenetic components of these different pathologies, but with a similar symptom profile.
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Multiplex Single Nucleotide Polymorphism Analyses. Methods Mol Biol 2016. [PMID: 27896763 DOI: 10.1007/978-1-4939-6730-8_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Quantitative polymerase chain reaction (qPCR) is a routinely used method for detection and quantitation of gene expression in real time. This is achieved through the incorporation and measurement of fluorescent reporter probes in the amplified cDNA strands, since the fluorescent signals increase as the reaction progresses. The availability of multiple probes that fluoresce at different wavelengths allows for multiplexing as this gives rise to amplicons with unique fluorescent signatures. Here, we describe a method using the SensiFAST and SensiFAST One-Step probe kits which allows simultaneous real-time quantitation of up to 5 amplicons.
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Inhibition of 11β-hydroxysteroid dehydrogenase type 1 ameliorates obesity-related insulin resistance. Biochem Biophys Res Commun 2016; 478:474-480. [DOI: 10.1016/j.bbrc.2016.06.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 06/02/2016] [Indexed: 11/21/2022]
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Gajewska J, Kuryłowicz A, Mierzejewska E, Ambroszkiewicz J, Chełchowska M, Weker H, Puzianowska-Kuźnicka M. Complementary Effects of Genetic Variations in LEPR on Body Composition and Soluble Leptin Receptor Concentration after 3-Month Lifestyle Intervention in Prepubertal Obese Children. Nutrients 2016; 8:E328. [PMID: 27240401 PMCID: PMC4924169 DOI: 10.3390/nu8060328] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 05/09/2016] [Accepted: 05/24/2016] [Indexed: 12/29/2022] Open
Abstract
In obese individuals, weight loss might be affected by variants of the adipokine-encoding genes. We verified whether selected functional single nucleotide polymorphisms in LEP, LEPR and ADIPOQ are associated with changes in serum levels of the respective adipokines and weight loss in 100 prepubertal obese (SDS-BMI > 2) Caucasian children undergoing lifestyle intervention. Frequencies of the -2548G > A LEP, Q223R LEPR, K656N LEPR, -11377C > G and -11426A > G ADIPOQ polymorphisms were analyzed by restriction fragment length polymorphism. Serum adipokine and soluble leptin receptor (sOB-R) concentrations were measured using the ELISA method. Among the analyzed polymorphisms, only LEPR polymorphisms were associated with changes of SDS-BMI or sOB-R concentrations in children after therapy. Carriers of the wild-type K665N and at least one minor Q223R allele had the greatest likelihood of losing weight (OR = 5.09, p = 0.006), an increase in sOB-R (ptrend = 0.022) and decrease in SDS-BMI correlated with the decrease of fat mass (p < 0.001). In contrast, carrying of the wild-type Q223R and at least one minor K665N allele were associated with a decrease in sOB-R concentrations and a decrease in SDS-BMI correlated with a decrease in fat-free mass (p = 0.002). We suggest that the combination of different LEPR variants, not a single variant, might determine predisposition to weight loss in the prepubertal period.
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Affiliation(s)
- Joanna Gajewska
- Screening Department, Institute of Mother and Child, Kasprzaka 17a, Warsaw 01-211, Poland.
| | - Alina Kuryłowicz
- Department of Human Epigenetics, Mossakowski Medical Research Center, Polish Academy of Sciences, Warsaw 02-106, Poland.
| | - Ewa Mierzejewska
- Department of Epidemiology and Biostatistics, Institute of Mother and Child, Warsaw 01-211, Poland.
| | - Jadwiga Ambroszkiewicz
- Screening Department, Institute of Mother and Child, Kasprzaka 17a, Warsaw 01-211, Poland.
| | - Magdalena Chełchowska
- Screening Department, Institute of Mother and Child, Kasprzaka 17a, Warsaw 01-211, Poland.
| | - Halina Weker
- Department of Nutrition, Institute of Mother and Child, Warsaw 01-211, Poland.
| | - Monika Puzianowska-Kuźnicka
- Department of Human Epigenetics, Mossakowski Medical Research Center, Polish Academy of Sciences, Warsaw 02-106, Poland.
- Department of Geriatrics and Gerontology, Medical Center of Postgraduate Education, Warsaw 01-826, Poland.
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