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Van Roessel IMAA, Van Den Brink M, Dekker J, Ruitenburg-van Essen BG, Tissing WJE, van Santen HM. Feasibility, safety, and efficacy of dietary or lifestyle interventions for hypothalamic obesity: A systematic review. Clin Nutr 2024; 43:1798-1811. [PMID: 38955055 DOI: 10.1016/j.clnu.2024.05.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 04/11/2024] [Accepted: 05/16/2024] [Indexed: 07/04/2024]
Abstract
BACKGROUND & AIMS A dysfunctional hypothalamus may result in decreased feelings of satiety (hyperphagia), decreased energy expenditure, and increased fat storage as a consequence of hyperinsulinemia. Hypothalamic dysfunction may thus lead to morbid obesity and can be encountered in childhood as a consequence of congenital, genetic, or acquired disorders. There is currently no effective treatment for hypothalamic obesity (HO). However, comparable to alimentary obesity, dietary and lifestyle interventions may be considered the cornerstones of obesity treatment. We questioned the effect of dietary or lifestyle interventions for HO and systematically searched the literature for evidence on feasibility, safety, or efficacy of dietary or lifestyle interventions for childhood hypothalamic overweight or obesity. METHODS A systematic search was conducted in MEDLINE (including Cochrane Library), EMBASE, and CINAHL (May 2023). Studies assessing feasibility, safety, or efficacy of any dietary or lifestyle intervention in children with hypothalamic overweight or obesity, were included. Animal studies, studies on non-diet interventions, and studies with no full text available were excluded. Because the number of studies to be included was low, the search was repeated for adults with hypothalamic overweight or obesity. Risk of bias was assessed with an adapted Cochrane Risk of Bias Tool. Level of evidence was assessed using the GRADE system. Descriptive data were described, as pooled-data analysis was not possible due to heterogeneity of included studies. RESULTS In total, twelve studies were included, with a total number of 118 patients (age 1-19 years) of whom one with craniopharyngioma, one with ROHHAD-NET syndrome, 50 with monogenic obesity, and 66 with Prader-Willi syndrome (PWS). Four studies reported a dietary intervention as feasible. However, parents did experience difficulties with children still stealing food, and especially lowering carbohydrates was considered to be challenging. Seven studies reported on efficacy of a dietary intervention: a well-balanced restrictive caloric diet (30% fat, 45% carbohydrates, and 25% protein) and various hypocaloric diets (8-10 kcal/cm/day) were considered effective in terms of weight stabilization or decrease. No negative effect on linear growth was reported. Four studies reported on specific lifestyle interventions, of which three also included a dietary intervention. Combined dietary and lifestyle intervention resulted in decreased BMI, although BMI returned to baseline values on long-term. One additional study was identified in adults after brain trauma and showed a significant reduction in BMI in one out of eight patients after a combined dietary and lifestyle intervention. CONCLUSIONS Hypocaloric diet or restrictive macronutrient diet with lower percentage of carbohydrates seems feasible and effective for childhood HO, although most of the studies had a high risk of bias, small cohorts without control groups, and were conducted in children with PWS only, compromising the generalizability. Lifestyle interventions only resulted in BMI decrease in short-term, indicating that additional guidance is needed to sustain its effect in the long-term. Literature on feasibility and efficacy of a dietary or lifestyle intervention for hypothalamic overweight or obesity is scarce, especially in children with acquired HO (following treatment for a suprasellar tumor). There is need for prospective (controlled) studies to determine which dietary and lifestyle intervention are most helpful for this specific patient group.
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Affiliation(s)
- I M A A Van Roessel
- Princess Máxima Center, Heidelberglaan 25, 3584 CS Utrecht, the Netherlands; Department of Pediatric Endocrinology, Wilhelmina Children's Hospital, University Medical Center, Lundlaan 6, 3584 EA Utrecht, the Netherlands.
| | - M Van Den Brink
- Princess Máxima Center, Heidelberglaan 25, 3584 CS Utrecht, the Netherlands; Laboratory of Behavioral Gastronomy, Centre for Healthy Eating and Food Innovation, Nassaustraat 36, 5911 BV, Venlo, the Netherlands
| | - J Dekker
- Department of Dietetics, Princess Máxima Center, Heidelberglaan 25, 3584 CS Utrecht, the Netherlands
| | - B G Ruitenburg-van Essen
- Department of Dietetics, Princess Máxima Center, Heidelberglaan 25, 3584 CS Utrecht, the Netherlands
| | - W J E Tissing
- Princess Máxima Center, Heidelberglaan 25, 3584 CS Utrecht, the Netherlands; Department of Pediatric Oncology and Hematology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ Groningen, the Netherlands
| | - H M van Santen
- Princess Máxima Center, Heidelberglaan 25, 3584 CS Utrecht, the Netherlands; Department of Pediatric Endocrinology, Wilhelmina Children's Hospital, University Medical Center, Lundlaan 6, 3584 EA Utrecht, the Netherlands
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Schmiedel O, Ivey M, Liu A, Murphy R. The New Zealand eating behavior questionnaire - Validation study for a novel assessment tool to describe actionable eating behavior traits. Appetite 2023; 191:107066. [PMID: 37852374 DOI: 10.1016/j.appet.2023.107066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 09/25/2023] [Accepted: 09/27/2023] [Indexed: 10/20/2023]
Abstract
Individualised management of obesity remains challenging and, to date, most treatment is based on clinical judgement. This study aimed to develop and validate a novel questionnaire-based tool to identify three pre-defined eating behavior (EB) traits, emotional eating, reduced satiety (constant hunger) and reduced satiation (feasters) that may predict selective medication response given their targeted actions. We recruited 977 individuals from a tertiary academic diabetes clinic to participate in this two-phase validation study. Participants self-reported weight management activities and were asked to self-assess their EB characteristics. The initial questionnaire included 42 visual analogue scale questions. In Phase I, 729 participants completed the questionnaire, including Māori (11.8%) and Pacific peoples (19.3%). After random division of the study sample, Exploratory Factor Analysis (EFA) confirmed a three-factor model as the best fit. Stepwise removal of items with inadequate factor loading retained 27 of 42 items, which accounted for 96% of the variance. Confirmatory Factor Analysis (CFA), performed on the second half of the sample, demonstrated good model fit with the final 27-item questionnaire. Internal consistency was high for factor (α = 0.82-0.95) and demographic subgroups, and similar to those obtained in the EFA. Test-retest reliability in a subset of 399 participants who repeated the questionnaire after a four-week interval (Phase II) showed moderate to good reliability. Participants classified into one of three EB types based on the highest median score among the factors. Test-retest reliability was robust for emotional eaters (71.25%) and constant hunger (68.9%). The correlation between aggregate EB score (sum of three EB scores) and BMI was significant (Spearman rho = 0.314, P = .0005). The questionnaire reliably identified three distinct EB traits, which may be informative for precision medicine applications for obesity management.
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Affiliation(s)
- Ole Schmiedel
- Department of Diabetes, Te Toka Tumai, Te Whatu Ora, New Zealand; University of Auckland, New Zealand.
| | | | - Amy Liu
- Department of Diabetes, Te Toka Tumai, Te Whatu Ora, New Zealand; University of Auckland, New Zealand
| | - Rinki Murphy
- Department of Diabetes, Te Toka Tumai, Te Whatu Ora, New Zealand; University of Auckland, New Zealand
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Gencoglu H. Maca modulates fat and liver energy metabolism markers insulin, IRS1, leptin, and SIRT1 in rats fed normal and high-fat diets. Arch Physiol Biochem 2023; 129:323-329. [PMID: 32951476 DOI: 10.1080/13813455.2020.1821064] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Maca root extract on insulin, insulin receptor substrate-1 (IRS1), leptin, and NAD-dependent deacetylase sirtuin-1 (SIRT1), as well as body weight changes evaluated in this study for a 60 days model of normal and high-fat diet (HFD) fed rats. 28 male rats allocated to four groups: (i) Control, (ii) Maca (40 mg/kg/day), (iii) HFD, and (iv) HFD + Maca. After the 60 days of study, fat tissue and liver insulin levels decreased in the HFD and HFD + Maca groups in comparison to Control and Maca groups (p < .001). Maca group showed a significant IRS1 increase in the fat tissue (p < .0001). Leptin levels were the highest in the Maca group and the lowest in the HFD group in the fat tissue (p < .01). SIRT1 levels were found the highest in the Maca groups (p < .01). These results show the protective and regulatory effectiveness of Maca when fed with a normal or HFD diet.
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Affiliation(s)
- Hasan Gencoglu
- Department of Biology, Faculty of Science, Firat University, Elazig, Turkey
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4
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Richter P, Sebald K, Fischer K, Behrens M, Schnieke A, Somoza V. Bitter Peptides YFYPEL, VAPFPEVF, and YQEPVLGPVRGPFPIIV, Released during Gastric Digestion of Casein, Stimulate Mechanisms of Gastric Acid Secretion via Bitter Taste Receptors TAS2R16 and TAS2R38. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:11591-11602. [PMID: 36054030 PMCID: PMC9501810 DOI: 10.1021/acs.jafc.2c05228] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 08/13/2022] [Accepted: 08/15/2022] [Indexed: 05/22/2023]
Abstract
Eating satiating, protein-rich foods is one of the key aspects of modern diet, although a bitter off-taste often limits the application of some proteins and protein hydrolysates, especially in processed foods. Previous studies of our group demonstrated that bitter-tasting food constituents, such as caffeine, stimulate mechanisms of gastric acid secretion as a signal of gastric satiation and a key process of gastric protein digestion via activation of bitter taste receptors (TAS2Rs). Here, we tried to elucidate whether dietary non-bitter-tasting casein is intra-gastrically degraded into bitter peptides that stimulate mechanisms of gastric acid secretion in physiologically achievable concentrations. An in vitro model of gastric digestion was verified by casein-fed pigs, and the peptides resulting from gastric digestion were identified by liquid chromatography-time-of-flight-mass spectrometry. The bitterness of five selected casein-derived peptides was validated by sensory analyses and by an in vitro screening approach based on human gastric parietal cells (HGT-1). For three of these peptides (YFYPEL, VAPFPEVF, and YQEPVLGPVRGPFPIIV), an upregulation of gene expression of TAS2R16 and TAS2R38 was observed. The functional involvement of these TAS2Rs was verified by siRNA knock-down (kd) experiments in HGT-1 cells. This resulted in a reduction of the mean proton secretion promoted by the peptides by up to 86.3 ± 9.9% for TAS2R16kd (p < 0.0001) cells and by up to 62.8 ± 7.0% for TAS2R38kd (p < 0.0001) cells compared with mock-transfected cells.
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Affiliation(s)
- Phil Richter
- Leibniz
Institute for Food Systems Biology at the Technical University of
Munich, Lise-M eitner-Straße
34, 85354Freising, Germany
| | - Karin Sebald
- Leibniz
Institute for Food Systems Biology at the Technical University of
Munich, Lise-M eitner-Straße
34, 85354Freising, Germany
| | - Konrad Fischer
- Chair
of Livestock Biotechnology, TUM School of Life Sciences, Technical University of Munich, Liesel-Beckmann-Straße 1, 85354Freising, Germany
| | - Maik Behrens
- Leibniz
Institute for Food Systems Biology at the Technical University of
Munich, Lise-M eitner-Straße
34, 85354Freising, Germany
| | - Angelika Schnieke
- Chair
of Livestock Biotechnology, TUM School of Life Sciences, Technical University of Munich, Liesel-Beckmann-Straße 1, 85354Freising, Germany
| | - Veronika Somoza
- Leibniz
Institute for Food Systems Biology at the Technical University of
Munich, Lise-M eitner-Straße
34, 85354Freising, Germany
- Chair
of Nutritional Systems Biology, TUM School of Life Sciences, Technical University of Munich, Lise-Meitner-Straße 34, 85354Freising, Germany
- Department
of Physiological Chemistry, Faculty of Chemistry, University of Vienna, Josef-Holaubek-Platz 2 (UZA II), 1090Wien, Austria
- . Phone +49-8161-71-2700
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Keri J, Cook-Bolden FE, Green L, Kircik LH, Baldwin H, Werschler WP, Guenin E, Pillai R, Bhatt V. Efficacy and tolerability of three topical acne treatments by body mass index: post hoc analysis including overweight and obese patients. J DERMATOL TREAT 2022; 33:2790-2799. [PMID: 35833564 DOI: 10.1080/09546634.2022.2071823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
BACKGROUND Acne prevalence may be higher in overweight/obese individuals, potentially due to hormonal, inflammatory, and/or dietary factors. However, the effects of body mass index (BMI) on topical acne treatments are largely unknown. METHODS Post hoc analyses of changes in inflammatory/noninflammatory lesions and treatment success were conducted using phase 3 data: clindamycin phosphate/benzoyl peroxide (CP/BPO) 1.2%/3.75% gel (NCT01701024); tretinoin 0.05% lotion (NCT02965456 and NCT02932306; pooled); and tazarotene 0.045% lotion (NCT03168321 and NCT03168334; pooled). Data were analyzed by BMI subgroups: <25kg/m2 (underweight-to-normal), 25-<30kg/m2 (overweight), and ≥30kg/m2 (obese). RESULTS Among participants analyzed (CP/BPO = 495; tretinoin = 1,636; tazarotene = 1,612), ∼20-25% were overweight and 15-20% were obese. At week 12, mean percent changes from baseline in inflammatory lesions were: CP/BPO (overweight: -63.2%, obese: -56.0%); tretinoin (-57.6%, -53.1%); tazarotene (-59.9%, -56.8%). Mean changes in noninflammatory lesions were: CP/BPO (-54.2%, -50.8%); tretinoin (-51.6%, -44.9%); tazarotene (-56.7%, -54.6%). Treatment success rates with active treatment ranged from 16.2% to 33.5% across BMI groups. CONCLUSIONS CP/BPO 1.2%/3.75% gel, tretinoin 0.05% lotion, and tazarotene 0.045% lotion were all effective in reducing acne lesions by ≥45% in overweight/obese patients with moderate-to-severe acne, comparable to the underweight-to-normal group. Efficacy of these topical acne treatments is not greatly impacted by BMI and may be affected more by the formulation.
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Affiliation(s)
- Jonette Keri
- University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Fran E Cook-Bolden
- Weill Cornell Medical College, New York, NY, USA.,Fran E. Cook-Bolden, MD, PLLC, New York, NY
| | - Lawrence Green
- Department of Dermatology, George Washington University School of Medicine, Washington, DC, USA
| | - Leon H Kircik
- Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Physicians Skin Care, DermResearch, PLLC, and Skin Sciences, PLLC, Louisville, KY, USA.,Indiana University Medical Center, Indianapolis, IN, USA
| | - Hilary Baldwin
- The Acne Treatment and Research Center, Brooklyn, NY, USA.,Robert Wood Johnson University Hospital, New Brunswick, NJ, USA
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Wang Z, Reid AMA, Wilson PW, Dunn IC. Identification of the Core Promoter and Variants Regulating Chicken CCKAR Expression. Genes (Basel) 2022; 13:1083. [PMID: 35741846 PMCID: PMC9222909 DOI: 10.3390/genes13061083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/15/2022] [Accepted: 06/15/2022] [Indexed: 02/05/2023] Open
Abstract
Decreased expression of chicken cholecystokinin A receptor (CCKAR) attenuates satiety, which contributes to increased food intake and growth for modern broilers. The study aims to define the core promoter of CCKAR, and to identify variants associated with expression activity. A 21 kb region around the CCKAR was re-sequenced to detect sequence variants. A series of 5'-deleted promoter plasmids were constructed to define the core promoter of CCKAR. The effects of sequence variants located in promoter (PSNP) and conserved (CSNP) regions on promoter activity were analyzed by comparing luciferase activity between haplotypes. A total of 182 variants were found in the 21 kb region. There were no large structural variants around CCKAR. pNL-328/+183, the one with the shortest insertion, showed the highest activity among the six promoter constructs, implying that the key cis elements regulating CCKAR expression are mainly distributed 328 bp upstream. We detected significant activity differences between high- and low-growth associated haplotypes in four of the six promoter constructs. The high-growth haplotypes of constructs pNL-1646/+183, pNL-799/+183 and pNL-528/+183 showed lower activities than the low-growth haplotypes, which is consistent with decreased expression of CCKAR in high-growth chickens. Lower expression of the high-growth allele was also detected for the CSNP5-containing construct. The data suggest that the core promoter of CCKAR is located the 328 bp region upstream from the transcription start site. Lower expression activities shown by the high-growth haplotypes in the reporter assay suggest that CSNP5 and variants located between 328 bp and 1646 bp upstream form a promising molecular basis for decreased expression of CCKAR and increased growth in chickens.
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Affiliation(s)
- Zhepeng Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
- Royal (Dick) School of Veterinary Studies, Roslin Institute, University of Edinburgh, Midlothian EH25 9RG, UK; (A.M.A.R.); (P.W.W.); (I.C.D.)
| | - Angus M. A. Reid
- Royal (Dick) School of Veterinary Studies, Roslin Institute, University of Edinburgh, Midlothian EH25 9RG, UK; (A.M.A.R.); (P.W.W.); (I.C.D.)
| | - Peter W. Wilson
- Royal (Dick) School of Veterinary Studies, Roslin Institute, University of Edinburgh, Midlothian EH25 9RG, UK; (A.M.A.R.); (P.W.W.); (I.C.D.)
| | - Ian C. Dunn
- Royal (Dick) School of Veterinary Studies, Roslin Institute, University of Edinburgh, Midlothian EH25 9RG, UK; (A.M.A.R.); (P.W.W.); (I.C.D.)
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7
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Arciero PJ, Ives SJ, Mohr AE, Robinson N, Escudero D, Robinson J, Rose K, Minicucci O, O'Brien G, Curran K, Miller VJ, He F, Norton C, Paul M, Sheridan C, Beard S, Centore J, Dudar M, Ehnstrom K, Hoyte D, Mak H, Yarde A. Morning Exercise Reduces Abdominal Fat and Blood Pressure in Women; Evening Exercise Increases Muscular Performance in Women and Lowers Blood Pressure in Men. Front Physiol 2022; 13:893783. [PMID: 35711313 PMCID: PMC9194552 DOI: 10.3389/fphys.2022.893783] [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: 03/11/2022] [Accepted: 05/02/2022] [Indexed: 12/25/2022] Open
Abstract
The ideal exercise time of day (ETOD) remains elusive regarding simultaneous effects on health and performance outcomes, especially in women. Purpose: Given known sex differences in response to exercise training, this study quantified health and performance outcomes in separate cohorts of women and men adhering to different ETOD. Methods: Thirty exercise-trained women (BMI = 24 ± 3 kg/m2; 42 ± 8 years) and twenty-six men (BMI = 25.5 ± 3 kg/m2; 45 ± 8 years) were randomized to multimodal ETOD in the morning (0600–0800 h, AM) or evening (1830–2030 h, PM) for 12 weeks and analyzed as separate cohorts. Baseline (week 0) and post (week 12) muscular strength (1-RM bench/leg press), endurance (sit-ups/push-ups) and power (squat jumps, SJ; bench throws, BT), body composition (iDXA; fat mass, FM; abdominal fat, Abfat), systolic/diastolic blood pressure (BP), respiratory exchange ratio (RER), profile of mood states (POMS), and dietary intake were assessed. Results: Twenty-seven women and twenty men completed the 12-week intervention. No differences at baseline existed between groups (AM vs PM) for both women and men cohorts. In women, significant interactions (p < 0.05) existed for 1RM bench (8 ± 2 vs 12 ± 2, ∆kg), pushups (9 ± 1 vs 13 ± 2, ∆reps), BT (10 ± 6 vs 45 ± 28, ∆watts), SJ (135 ± 6 vs 39 ± 8, ∆watts), fat mass (−1.0 ± 0.2 vs −0.3 ± 0.2, ∆kg), Abfat (−2.6 ± 0.3 vs −0.9 ± 0.5, ∆kg), diastolic (−10 ± 1 vs−5 ± 5, ∆mmHg) and systolic (−12.5 ± 2.7 vs 2.3 ± 3, mmHg) BP, AM vs PM, respectively. In men, significant interactions (p < 0.05) existed for systolic BP (−3.5 ± 2.6 vs −14.9 ± 5.1, ∆mmHg), RER (−0.01 ± 0.01 vs −0.06 ± 0.01, ∆VCO2/VO2), and fatigue (−0.8 ± 2 vs −5.9 ± 2, ∆mm), AM vs PM, respectively. Macronutrient intake was similar among AM and PM groups. Conclusion: Morning exercise (AM) reduced abdominal fat and blood pressure and evening exercise (PM) enhanced muscular performance in the women cohort. In the men cohort, PM increased fat oxidation and reduced systolic BP and fatigue. Thus, ETOD may be important to optimize individual exercise-induced health and performance outcomes in physically active individuals and may be independent of macronutrient intake.
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Affiliation(s)
- Paul J Arciero
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Stephen J Ives
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Alex E Mohr
- College of Health Solutions, Arizona State University, Phoenix, AZ, United States
| | - Nathaniel Robinson
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Daniela Escudero
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Jake Robinson
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Kayla Rose
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Olivia Minicucci
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Gabriel O'Brien
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Kathryn Curran
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Vincent J Miller
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Feng He
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States.,Department of Kinesiology, California State University, Chico, CA, United States
| | - Chelsea Norton
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Maia Paul
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Caitlin Sheridan
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Sheriden Beard
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Jessica Centore
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Monique Dudar
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Katy Ehnstrom
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Dakembay Hoyte
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Heather Mak
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Aaliyah Yarde
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
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Lin JJ, Yang D, Ou SJL, Mak YY, Lee DPS, Lim KL, Tai ES, Liu MH, Khan SA. Creating texturally tuneable, low calorie and palatable noodle-like food assemblies via microfluidics. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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9
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Schab M, Skoczen S. The Role of Nutritional Status, Gastrointestinal Peptides, and Endocannabinoids in the Prognosis and Treatment of Children with Cancer. Int J Mol Sci 2022; 23:5159. [PMID: 35563548 PMCID: PMC9106013 DOI: 10.3390/ijms23095159] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/29/2022] [Accepted: 04/29/2022] [Indexed: 12/26/2022] Open
Abstract
Neoplastic diseases in children are the second most frequent cause of death among the young. It is estimated that 400,000 children worldwide will be diagnosed with cancer each year. The nutritional status at diagnosis is a prognostic indicator and influences the treatment tolerance. Both malnutrition and obesity increase the risk of mortality and complications during treatment. It is necessary to constantly search for new factors that impair the nutritional status. The endocannabinoid system (ECS) is a signaling system whose best-known function is regulating energy balance and food intake, but it also plays a role in pain control, embryogenesis, neurogenesis, learning, and the regulation of lipid and glucose metabolism. Its action is multidirectional, and its role is being discovered in an increasing number of diseases. In adults, cannabinoids have been shown to have anti-cancer properties against breast and pancreatic cancer, melanoma, lymphoma, and brain tumors. Data on the importance of both the endocannabinoid system and synthetic cannabinoids are lacking in children with cancer. This review highlights the role of nutritional status in the oncological treatment process, and describes the role of ECS and gastrointestinal peptides in regulating appetite. We also point to the need for research to evaluate the role of the endocannabinoid system in children with cancer, together with a prospective assessment of nutritional status during oncological treatment.
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Affiliation(s)
- Magdalena Schab
- Department of Pediatric Oncology and Hematology, University Children’s Hospital of Krakow, 30-663 Krakow, Poland;
| | - Szymon Skoczen
- Department of Pediatric Oncology and Hematology, University Children’s Hospital of Krakow, 30-663 Krakow, Poland;
- Department of Pediatric Oncology and Hematology, Faculty of Medicine, Jagiellonian University Medical College, 30-663 Krakow, Poland
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10
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Waddell IS, Orfila C. Dietary fiber in the prevention of obesity and obesity-related chronic diseases: From epidemiological evidence to potential molecular mechanisms. Crit Rev Food Sci Nutr 2022; 63:8752-8767. [PMID: 35471164 DOI: 10.1080/10408398.2022.2061909] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Obesity is a mostly preventable diet-related disease and currently a major challenge for human populations worldwide. Obesity is a major risk factor for diseases such as type 2 diabetes mellitus (T2DM), cardiovascular disease (CVD) and certain cancers. Dietary fiber is a complex mixture of non-digestible molecules, mostly polysaccharides. Multiple epidemiological studies have demonstrated statistically significant reductions in risks of obesity, T2DM, CVD, colorectal cancer, and pre-menopausal breast cancer with higher dietary fiber intakes. Various direct and indirect mechanisms have been proposed including altered digestion and absorption, stimulation of gut hormones including glucagon-like-peptide-1 (GLP-1) and peptide YY (PYY), reduced appetite, and altered metabolism of bile and cholesterol. These may act via pathways involving G-protein-coupled receptors (GPRs), histone deacetylase (HDAC), and aromatase enzymes. Ultimately, fiber intake contributes to improving glucose levels and insulin sensitivity, lowering risk of T2DM, CVD and certain cancers. Therefore, diets rich in dietary fiber should be encouraged to prevent obesity and associated chronic disease.
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Affiliation(s)
- Isabella Skye Waddell
- School of Food Science and Nutrition, Woodhouse Lane, University of Leeds, Leeds, UK
| | - Caroline Orfila
- School of Food Science and Nutrition, Woodhouse Lane, University of Leeds, Leeds, UK
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Tacad DKM, Tovar AP, Richardson CE, Horn WF, Krishnan GP, Keim NL, Krishnan S. Satiety Associated with Calorie Restriction and Time-Restricted Feeding: Peripheral Hormones. Adv Nutr 2022; 13:792-820. [PMID: 35191467 PMCID: PMC9156388 DOI: 10.1093/advances/nmac014] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 12/08/2021] [Accepted: 02/11/2022] [Indexed: 12/14/2022] Open
Abstract
Calorie restriction (CR) is a common approach to inducing negative energy balance. Recently, time-restricted feeding (TRF), which involves consuming food within specific time windows during a 24-h day, has become popular owing to its relative ease of practice and potential to aid in achieving and maintaining a negative energy balance. TRF can be implemented intentionally with CR, or TRF might induce CR simply because of the time restriction. This review focuses on summarizing our current knowledge on how TRF and continuous CR affect gut peptides that influence satiety. Based on peer-reviewed studies, in response to CR there is an increase in the orexigenic hormone ghrelin and a reduction in fasting leptin and insulin. There is likely a reduction in glucagon-like peptide-1 (GLP-1), peptide YY (PYY), and cholecystokinin (CCK), albeit the evidence for this is weak. After TRF, unlike CR, fasting ghrelin decreased in some TRF studies, whereas it showed no change in several others. Further, a reduction in fasting leptin, insulin, and GLP-1 has been observed. In conclusion, when other determinants of food intake are held equal, the peripheral satiety systems appear to be somewhat similarly affected by CR and TRF with regard to leptin, insulin, and GLP-1. But unlike CR, TRF did not appear to robustly increase ghrelin, suggesting different influences on appetite with a potential decrease of hunger after TRF when compared with CR. However, there are several established and novel gut peptides that have not been measured within the context of CR and TRF, and studies that have evaluated effects of TRF are often short-term, with nonuniform study designs and highly varying temporal eating patterns. More evidence and studies addressing these aspects are needed to draw definitive conclusions.
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Affiliation(s)
- Debra K M Tacad
- Obesity and Metabolism Research Unit, USDA-Agricultural Research Service Western Human Nutrition Research Center, Davis, CA, USA,Department of Nutrition, University of California Davis, Davis, CA, USA
| | - Ashley P Tovar
- Department of Nutrition, University of California Davis, Davis, CA, USA
| | | | - William F Horn
- Obesity and Metabolism Research Unit, USDA-Agricultural Research Service Western Human Nutrition Research Center, Davis, CA, USA
| | - Giri P Krishnan
- Department of Medicine, School of Medicine, University of California San Diego, San Diego, CA, USA
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Desdentado L, Navarrete J, Folgado-Alufre M, de Blas A, Navarro-Siurana J, Ponce F, Molinari G, Jimeno-Martínez A, Rupérez AI, Bueno-Lozano G, Cuenca-Royo A, Corbella E, Agüera Z, Baños RM, Álvarez-Pitti J. Are Peripheral Biomarkers Determinants of Eating Styles in Childhood and Adolescence Obesity? A Cross-Sectional Study. Nutrients 2022; 14:305. [PMID: 35057485 PMCID: PMC8780085 DOI: 10.3390/nu14020305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/24/2021] [Accepted: 11/30/2021] [Indexed: 02/04/2023] Open
Abstract
Disturbances in eating behaviors have been widely related to obesity. However, little is known about the role of obesity-related biomarkers in shaping habitual patterns of eating behaviors (i.e., eating styles) in childhood. The objective of the present study was to explore the relationships between several biomarkers crucially involved in obesity (ghrelin, insulin resistance, and leptin/adiponectin ratio) and eating styles in children and adolescents with obesity. Seventy participants aged between 8 and 16 (56.2% men) fulfilled the Spanish version of the Dutch Eating Behavior Questionnaire for Children to measure external, emotional, and restrained eating styles. In addition, concentrations of ghrelin, leptin, adiponectin, insulin, and glucose were obtained through a blood test. Hierarchical multiple regression analyses controlling for age and sex were computed for each eating style. Results indicated that individuals with higher ghrelin concentration levels showed lower scores in restrained eating (β = -0.61, p < 0.001). The total model explained 32% of the variance of the restrained pattern. No other relationships between obesity-related biomarkers and eating behaviors were found. This study highlights that one of the obesity-risk factors, namely lower plasma ghrelin levels, is substantially involved in a well-known maladaptive eating style, restraint eating, in childhood obesity.
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Affiliation(s)
- Lorena Desdentado
- CIBER Fisiopatología Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5. Pabellón 11, Planta 0, 28029 Madrid, Spain; (L.D.); (F.P.); (G.M.); (A.J.-M.); (A.I.R.); (G.B.-L.); (A.C.-R.); (E.C.); (Z.A.); (R.M.B.)
- Polibienestar Research Institute, University of Valencia, Calle Serpis, 29, 46022 Valencia, Spain; (J.N.); (M.F.-A.); (J.N.-S.)
- Department of Personality, Evaluation, and Psychological Treatments, University of Valencia, Avda. Blasco Ibañez, 21, 46010 Valencia, Spain
| | - Jaime Navarrete
- Polibienestar Research Institute, University of Valencia, Calle Serpis, 29, 46022 Valencia, Spain; (J.N.); (M.F.-A.); (J.N.-S.)
| | - María Folgado-Alufre
- Polibienestar Research Institute, University of Valencia, Calle Serpis, 29, 46022 Valencia, Spain; (J.N.); (M.F.-A.); (J.N.-S.)
- Department of Personality, Evaluation, and Psychological Treatments, University of Valencia, Avda. Blasco Ibañez, 21, 46010 Valencia, Spain
| | - Ana de Blas
- Pediatric Department, Consorcio Hospital General Universitario de Valencia, Avda. Tres Cruces, 2, 46014 Valencia, Spain;
| | - Jéssica Navarro-Siurana
- Polibienestar Research Institute, University of Valencia, Calle Serpis, 29, 46022 Valencia, Spain; (J.N.); (M.F.-A.); (J.N.-S.)
| | - Francisco Ponce
- CIBER Fisiopatología Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5. Pabellón 11, Planta 0, 28029 Madrid, Spain; (L.D.); (F.P.); (G.M.); (A.J.-M.); (A.I.R.); (G.B.-L.); (A.C.-R.); (E.C.); (Z.A.); (R.M.B.)
- Pediatric Department, Consorcio Hospital General Universitario de Valencia, Avda. Tres Cruces, 2, 46014 Valencia, Spain;
| | - Guadalupe Molinari
- CIBER Fisiopatología Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5. Pabellón 11, Planta 0, 28029 Madrid, Spain; (L.D.); (F.P.); (G.M.); (A.J.-M.); (A.I.R.); (G.B.-L.); (A.C.-R.); (E.C.); (Z.A.); (R.M.B.)
| | - Andrea Jimeno-Martínez
- CIBER Fisiopatología Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5. Pabellón 11, Planta 0, 28029 Madrid, Spain; (L.D.); (F.P.); (G.M.); (A.J.-M.); (A.I.R.); (G.B.-L.); (A.C.-R.); (E.C.); (Z.A.); (R.M.B.)
- Growth, Exercise, Nutrition and Development (GENUD) Research Group, Facultad de Ciencias de la Salud, Instituto Agroalimentario de Aragón, Universidad de Zaragoza, Calle Miguel Servet, 177, 50013 Zaragoza, Spain
| | - Azahara I. Rupérez
- CIBER Fisiopatología Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5. Pabellón 11, Planta 0, 28029 Madrid, Spain; (L.D.); (F.P.); (G.M.); (A.J.-M.); (A.I.R.); (G.B.-L.); (A.C.-R.); (E.C.); (Z.A.); (R.M.B.)
- Growth, Exercise, Nutrition and Development (GENUD) Research Group, Facultad de Ciencias de la Salud, Instituto Agroalimentario de Aragón, Universidad de Zaragoza, Calle Miguel Servet, 177, 50013 Zaragoza, Spain
| | - Gloria Bueno-Lozano
- CIBER Fisiopatología Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5. Pabellón 11, Planta 0, 28029 Madrid, Spain; (L.D.); (F.P.); (G.M.); (A.J.-M.); (A.I.R.); (G.B.-L.); (A.C.-R.); (E.C.); (Z.A.); (R.M.B.)
- Growth, Exercise, Nutrition and Development (GENUD) Research Group, Facultad de Ciencias de la Salud, Instituto Agroalimentario de Aragón, Universidad de Zaragoza, Calle Miguel Servet, 177, 50013 Zaragoza, Spain
- Paediatric Endocrinology Department, Clinical Hospital Lozano Blesa, Zaragoza, Avda. San Juan Bosco, 50009 Zaragoza, Spain
| | - Aida Cuenca-Royo
- CIBER Fisiopatología Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5. Pabellón 11, Planta 0, 28029 Madrid, Spain; (L.D.); (F.P.); (G.M.); (A.J.-M.); (A.I.R.); (G.B.-L.); (A.C.-R.); (E.C.); (Z.A.); (R.M.B.)
- Integrative Pharmacology and Systems Neurosciences Research Group, Neurosciences Research Program, Hospital del Mar Medical Research Institute (IMIM), 08003 Barcelona, Spain
| | - Emili Corbella
- CIBER Fisiopatología Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5. Pabellón 11, Planta 0, 28029 Madrid, Spain; (L.D.); (F.P.); (G.M.); (A.J.-M.); (A.I.R.); (G.B.-L.); (A.C.-R.); (E.C.); (Z.A.); (R.M.B.)
- Cardiovascular Risk Unit, Internal Medicine Department, Bellvitge University Hospital—IDIBELL, Feixa Llarga, s/n, 08907 Barcelona, Spain
| | - Zaida Agüera
- CIBER Fisiopatología Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5. Pabellón 11, Planta 0, 28029 Madrid, Spain; (L.D.); (F.P.); (G.M.); (A.J.-M.); (A.I.R.); (G.B.-L.); (A.C.-R.); (E.C.); (Z.A.); (R.M.B.)
- Department of Public Health, Mental Health and Perinatal Nursing, Health Sciences Campus Bellvitge, School of Nursing, University of Barcelona, Feixa Llarga, s/n, 08907 Barcelona, Spain
| | - Rosa M. Baños
- CIBER Fisiopatología Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5. Pabellón 11, Planta 0, 28029 Madrid, Spain; (L.D.); (F.P.); (G.M.); (A.J.-M.); (A.I.R.); (G.B.-L.); (A.C.-R.); (E.C.); (Z.A.); (R.M.B.)
- Polibienestar Research Institute, University of Valencia, Calle Serpis, 29, 46022 Valencia, Spain; (J.N.); (M.F.-A.); (J.N.-S.)
- Department of Personality, Evaluation, and Psychological Treatments, University of Valencia, Avda. Blasco Ibañez, 21, 46010 Valencia, Spain
| | - Julio Álvarez-Pitti
- CIBER Fisiopatología Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5. Pabellón 11, Planta 0, 28029 Madrid, Spain; (L.D.); (F.P.); (G.M.); (A.J.-M.); (A.I.R.); (G.B.-L.); (A.C.-R.); (E.C.); (Z.A.); (R.M.B.)
- Pediatric Department, Consorcio Hospital General Universitario de Valencia, Avda. Tres Cruces, 2, 46014 Valencia, Spain;
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OUP accepted manuscript. Nutr Rev 2022; 80:1942-1957. [DOI: 10.1093/nutrit/nuac010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Galiniak S, Podgórski R, Rachel M, Mazur A. Serum levels of hormones regulating appetite in patients with cystic fibrosis - a single-center, cross-sectional study. Front Endocrinol (Lausanne) 2022; 13:992667. [PMID: 36313742 PMCID: PMC9606394 DOI: 10.3389/fendo.2022.992667] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 09/27/2022] [Indexed: 11/13/2022] Open
Abstract
Cystic fibrosis (CF), which is the most common inherited genetically determined disease caused by a mutation in the gene for the CF transmembrane conductance regulator protein. Pulmonary failure is the leading cause of death in this population, while the dysregulation of endocrine system creates significant disorders, including malnutrition, underweight, and CF-related diabetes. Therefore, the objective of our study was to determine the following hormones in the serum of patients with CF: ghrelin, putative peptide YY (PYY), Agouti-signaling protein (ASP), and alpha-melanocyte-stimulating hormone (α-MSH). To our knowledge, serum levels of PYY, ASP, and α-MSH have not yet been assessed in CF. For this purpose, we measured hormone levels using enzyme-linked immunosorbent assays in 38 patients from the local CF care center, as well as 16 sex- and age-matched healthy controls. Moreover, we estimated the correlations between the tested hormones and the parameters of the patients' clinical status. In this study, we found sinificantly reduced serum levels of ghrelin and ASP in patients with CF (p<0.01). There was no difference in PYY and α-MSH levels between participants with CF and healthy subjects. Furthermore, there was no difference in hormone levels between females and males with CF. The type of gene mutation (homozygous or heterozygous for ΔF508) had no effect on hormone levels. Ghrelin was negatively correlated with age, body mass index, and C-reactive protein. PYY was negatively associated with the age of the patients. Hormone dysregulation in CF may contribute to decreased appetite, as well as many other disturbed processes. Therefore, ghrelin appears to play a key role in the regulation of energy management of CF. Future multicenter and multidisciplinary studies should focus on an unequivocal understanding of the role of these hormones in CF.
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Ha GE, Cheong E. Chronic Restraint Stress Decreases the Excitability of Hypothalamic POMC Neuron and Increases Food Intake. Exp Neurobiol 2021; 30:375-386. [PMID: 34983879 PMCID: PMC8752322 DOI: 10.5607/en21037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/08/2021] [Accepted: 12/11/2021] [Indexed: 11/19/2022] Open
Abstract
Stress activates the hypothalamic-pituitary-adrenal system, and induces the release of glucocorticoids, stress hormones, into circulation. Many studies have shown that stress affects feeding behavior, however, the underlying circuitry and molecular mechanisms are not fully understood. The balance between orexigenic (simulating appetite) and anorexigenic (loss of appetite) signals reciprocally modulate feeding behavior. It is suggested that proopiomelanocortin (POMC) and neuropeptide Y (NPY) neurons in the arcuate nucleus (ARC) of the hypothalamus are the first-order neurons that respond to the circulating signals of hunger and satiety. Here, we examined a chronic restraint stress model and observed an increase in food intake, which was not correlated with anhedonia. We investigated whether stress affects the properties of POMC and NPY neurons and found that chronic restraint stress reduced the excitatory inputs onto POMC neurons and increased the action potential threshold. Therefore, our study suggests that chronic stress modulates the intrinsic excitability and excitatory inputs in POMC neurons, leading to changes in feeding behavior.
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Affiliation(s)
- Go Eun Ha
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea
| | - Eunji Cheong
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea
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Strassheim D, Sullivan T, Irwin DC, Gerasimovskaya E, Lahm T, Klemm DJ, Dempsey EC, Stenmark KR, Karoor V. Metabolite G-Protein Coupled Receptors in Cardio-Metabolic Diseases. Cells 2021; 10:3347. [PMID: 34943862 PMCID: PMC8699532 DOI: 10.3390/cells10123347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/10/2021] [Accepted: 11/18/2021] [Indexed: 12/15/2022] Open
Abstract
G protein-coupled receptors (GPCRs) have originally been described as a family of receptors activated by hormones, neurotransmitters, and other mediators. However, in recent years GPCRs have shown to bind endogenous metabolites, which serve functions other than as signaling mediators. These receptors respond to fatty acids, mono- and disaccharides, amino acids, or various intermediates and products of metabolism, including ketone bodies, lactate, succinate, or bile acids. Given that many of these metabolic processes are dysregulated under pathological conditions, including diabetes, dyslipidemia, and obesity, receptors of endogenous metabolites have also been recognized as potential drug targets to prevent and/or treat metabolic and cardiovascular diseases. This review describes G protein-coupled receptors activated by endogenous metabolites and summarizes their physiological, pathophysiological, and potential pharmacological roles.
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Affiliation(s)
- Derek Strassheim
- Department of Medicine Cardiovascular and Pulmonary Research Laboratory, University of Colorado Denver, Denver, CO 80204, USA; (D.S.); (T.S.); (D.C.I.); (E.G.); (D.J.K.); (E.C.D.); (K.R.S.)
| | - Timothy Sullivan
- Department of Medicine Cardiovascular and Pulmonary Research Laboratory, University of Colorado Denver, Denver, CO 80204, USA; (D.S.); (T.S.); (D.C.I.); (E.G.); (D.J.K.); (E.C.D.); (K.R.S.)
| | - David C. Irwin
- Department of Medicine Cardiovascular and Pulmonary Research Laboratory, University of Colorado Denver, Denver, CO 80204, USA; (D.S.); (T.S.); (D.C.I.); (E.G.); (D.J.K.); (E.C.D.); (K.R.S.)
| | - Evgenia Gerasimovskaya
- Department of Medicine Cardiovascular and Pulmonary Research Laboratory, University of Colorado Denver, Denver, CO 80204, USA; (D.S.); (T.S.); (D.C.I.); (E.G.); (D.J.K.); (E.C.D.); (K.R.S.)
| | - Tim Lahm
- Division of Pulmonary, Critical Care and Sleep Medicine, National Jewish Health Denver, Denver, CO 80206, USA;
- Rocky Mountain Regional VA Medical Center, Aurora, CO 80045, USA
| | - Dwight J. Klemm
- Department of Medicine Cardiovascular and Pulmonary Research Laboratory, University of Colorado Denver, Denver, CO 80204, USA; (D.S.); (T.S.); (D.C.I.); (E.G.); (D.J.K.); (E.C.D.); (K.R.S.)
- Rocky Mountain Regional VA Medical Center, Aurora, CO 80045, USA
- Division of Pulmonary Sciences and Critical Care Medicine, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Edward C. Dempsey
- Department of Medicine Cardiovascular and Pulmonary Research Laboratory, University of Colorado Denver, Denver, CO 80204, USA; (D.S.); (T.S.); (D.C.I.); (E.G.); (D.J.K.); (E.C.D.); (K.R.S.)
- Rocky Mountain Regional VA Medical Center, Aurora, CO 80045, USA
- Division of Pulmonary Sciences and Critical Care Medicine, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Kurt R. Stenmark
- Department of Medicine Cardiovascular and Pulmonary Research Laboratory, University of Colorado Denver, Denver, CO 80204, USA; (D.S.); (T.S.); (D.C.I.); (E.G.); (D.J.K.); (E.C.D.); (K.R.S.)
| | - Vijaya Karoor
- Department of Medicine Cardiovascular and Pulmonary Research Laboratory, University of Colorado Denver, Denver, CO 80204, USA; (D.S.); (T.S.); (D.C.I.); (E.G.); (D.J.K.); (E.C.D.); (K.R.S.)
- Division of Pulmonary, Critical Care and Sleep Medicine, National Jewish Health Denver, Denver, CO 80206, USA;
- Division of Pulmonary Sciences and Critical Care Medicine, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA
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Sheashea M, Xiao J, Farag MA. MUFA in metabolic syndrome and associated risk factors: is MUFA the opposite side of the PUFA coin? Food Funct 2021; 12:12221-12234. [PMID: 34779464 DOI: 10.1039/d1fo00979f] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Omega-9 fatty acids represent some of the main mono-unsaturated fatty acids (MUFA) found in plant and animal sources. They can be synthesized endogenously in the human body, but they do not fully provide all the body's requirements. Consequently, they are considered as partially essential fatty acids. MUFA represent a healthier alternative to saturated animal fats and have several health benefits, including the prevention of metabolic syndrome (MetS) and its complications. This review concentrates on the major MUFA pharmacological activities in the context of MetS management, including alleviating cardiovascular disease (CVD) and dyslipidemia, central obesity, non-alcoholic fatty liver disease (NAFLD), and type 2 diabetes mellitus (T2DM). The beneficial effects of MUFA for CVD were found to be consistent with those of polyunsaturated fatty acids (PUFA) for the alleviation of systolic and diastolic blood pressure and high low density lipoprotein cholesterol (LDLc) and triacylglcerol (TAG) levels, albeit MUFA had a more favorable effect on decreasing night systolic blood pressure (SBP). To reduce the obesity profile, the use of MUFA was found to induce a higher oxidation rate with a higher energy expenditure, compared with PUFA. For NAFLD, PUFA was found to be a better potential drug candidate for the improvement of liver steatosis in children than MUFA. Any advantageous outcomes from using MUFA for diabetes and insulin resistance (IR) compared to using PUFA were found to be either non-significant or resulted from a small number of meta-analyses. Such an increase in the number of studies of the mechanisms of action require more clinical and epidemiological studies to confirm the beneficial outcomes, especially over a long-term treatment period.
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Affiliation(s)
- Mohamed Sheashea
- Aromatic and Medicinal Plants Department, Desert Research Center, Cairo, Egypt
| | - Jianbo Xiao
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, E-32004 Ourense, Spain. .,College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China.,International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China
| | - Mohamed A Farag
- Pharmacognosy Department, College of Pharmacy, Cairo University, Kasr el Aini St., P.B. 11562, Cairo, Egypt. .,Chemistry Department, School of Sciences & Engineering, The American University in Cairo, New Cairo 11835, Egypt
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Body adiposity and oral feeding outcomes in infants: a pilot study. J Perinatol 2021; 41:1059-1064. [PMID: 33597738 DOI: 10.1038/s41372-021-00975-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 12/04/2020] [Accepted: 01/27/2021] [Indexed: 11/08/2022]
Abstract
BACKGROUND Prevalence of oral feeding difficulties in high-risk infants is increasing. Desire to take orally can be influenced by hunger and satiety, which may influence growth and body fat. OBJECTIVE To determine the association between body adiposity and infant oral feeding. METHODS Retrospective case-control study of infants ≥37-week postmenstrual age (PMA). Infants on tube feeding (cases) compared to birth gestation-matched infants on full oral feeding (controls). Body composition was determined by air displacement plethysmography. RESULTS Overall, 16 cases vs. 16 controls. At study, cases vs. controls had similar PMA, weight and length z-scores, and calorie intake. The mean oral intake was significantly less in cases vs. controls (66 vs. 168 ml/kg/day, p < 0.001). Cases had significantly higher percentage of fat mass (18.7 vs. 10.9) and fat-mass z-score (1.62 vs. 0.08) (p < 0.05), but similar fat-free mass vs. controls. Five case infants required gastrostomy. CONCLUSIONS Higher body adiposity may worsen the infant oral feeding outcomes.
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Sessa M, Andersen M. New Insight on the Safety of Erenumab: An Analysis of Spontaneous Reports of Adverse Events Recorded in the US Food and Drug Administration Adverse Event Reporting System Database. BioDrugs 2021; 35:215-227. [PMID: 33609278 DOI: 10.1007/s40259-021-00469-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/19/2021] [Indexed: 01/03/2023]
Abstract
AIM The aim of this article was to provide an overview of adverse events reported for erenumab in post-marketing through the Food and Drug Administration (FDA) Adverse Event Reporting System (FAERS) and perform a disproportionality analysis with other drugs used for acute or preventative treatment of migraine as controls. METHODS FAERS was screened from the first quarter of 2018 to the second quarter of 2020 (latest data update 30 June 2020). Clinical and demographic characteristics of cases were described along with the seriousness and outcome of adverse events. Disproportionality analyses were performed using the reporting odds ratio (ROR). RESULTS In total, 23,312 cases were reported during the study period, 67.0% by consumers. Cases in the age range 18-64 years (10,922 cases; 45.8%), in female sex (15,099 cases; 64.8%), and with adverse events that were classified as non-serious (19,626 cases; 84.2%) were the most prevalent in the database. After the exclusion of duplicates, 146 fatal cases were identified. A total of 1303 unlabeled adverse events were reported, of which 49 had statistically significant disproportionality of reporting in comparison with other drugs used for acute or preventative treatment of migraine. Identified disproportionality signals included alopecia, depression, anxiety, myocardial infarction, increased heart rate, pulmonary embolism, weight alteration, insomnia, tinnitus, and influenza-like symptoms. Injection-site reactions (labeled events) were co-reported with errors in administration procedures. CONCLUSION Adverse events reported during the first 2 years of post-marketing surveillance were mostly non-serious and with a favorable prognosis. However, new safety aspects emerged for which further studies are needed to confirm the associations, prioritizing unlabeled events with consistent disproportionality signals (e.g., emerging in at least 4 out of 6 analyses).
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Affiliation(s)
- Maurizio Sessa
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100, Copenhagen, Denmark.
| | - Morten Andersen
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100, Copenhagen, Denmark
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Cao L, Ali S, Queen NJ. Hypothalamic gene transfer of BDNF promotes healthy aging. VITAMINS AND HORMONES 2021; 115:39-66. [PMID: 33706955 DOI: 10.1016/bs.vh.2020.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The aging process and age-related diseases all involve metabolic decline and impaired ability to cope with adversity. Environmental enrichment (EE)-a housing environment which recapitulates aspects of active lifestyle-exerts a wide range of health benefits in laboratory rodents. Brain-derived neurotrophic factor (BDNF) in the hypothalamus orchestrates autonomic and neuroendocrine processes, serving as one key brain mediator of EE-induced resistance to obesity, cancer, and autoimmunity. Recombinant adeno-associated virus (AAV)-mediated hypothalamic BDNF gene transfer alleviates obesity, diabetes, and metabolic syndromes in both diet-induced and genetic models. One recent study by our lab demonstrates the efficacy and safety of a built-in autoregulatory system to control transgene BDNF expression, mimicking the body's natural feedback systems in middle-age mice. Twelve-month old mice were treated with autoregulatory BDNF vector and monitored for 7months. BDNF gene transfer prevented age-associated metabolic decline by: reducing adiposity, preventing the decline of brown fat activity, increasing adiponectin while reducing leptin and insulin in circulation, improving glucose tolerance, increasing energy expenditure, alleviating hepatic steatosis, and suppressing inflammatory genes in the hypothalamus and adipose tissues. Furthermore, BDNF treatment reduced anxiety-like and depression-like behaviors. This chapter summarizes this work and discusses potential roles that hypothalamic BDNF might play in promoting healthy aging.
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Affiliation(s)
- Lei Cao
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH, United States; The Ohio State University Comprehensive Cancer Center, Columbus, OH, United States.
| | - Seemaab Ali
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH, United States; The Ohio State University Comprehensive Cancer Center, Columbus, OH, United States
| | - Nicholas J Queen
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH, United States; The Ohio State University Comprehensive Cancer Center, Columbus, OH, United States
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Yeung C, Shi IQ, Sung HK. Physiological Responses of Post-Dietary Effects: Lessons from Pre-Clinical and Clinical Studies. Metabolites 2021; 11:metabo11020062. [PMID: 33498462 PMCID: PMC7909542 DOI: 10.3390/metabo11020062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/17/2021] [Accepted: 01/18/2021] [Indexed: 02/07/2023] Open
Abstract
Dieting regimens such as calorie restriction (CR) are among the most commonly practiced interventions for weight management and metabolic abnormalities. Due to its independence from pharmacological agents and considerable flexibility in regimens, many individuals turn to dieting as a form of mitigation and maintenance of metabolic health. While metabolic benefits of CR have been widely studied, weight loss maintenance and metabolic benefits are reported to be lost overtime when the diet regimen has been terminated—referred to as post-dietary effects. Specifically, due to the challenges of long-term adherence and compliance to dieting, post-dietary repercussions such as body weight regain and loss of metabolic benefits pose as major factors in the efficacy of CR. Intermittent fasting (IF) regimens, which are defined by periodic energy restriction, have been deemed as more flexible, compliant, and easily adapted diet interventions that result in many metabolic benefits which resemble conventional CR diets. Many individuals find that IF regimens are easier to adhere to, resulting in fewer post-dietary effects; therefore, IF may be a more effective intervention. Unfortunately, there is a severe gap in current research regarding IF post-dietary effects. We recognize the importance of understanding the sustainability of dieting; as such, we will review the known physiological responses of CR post-dietary effects and its potential mechanisms through synthesizing lessons from both pre-clinical and clinical studies. This review aims to provide insight from a translational medicine perspective to allow for the development of more practical and effective diet interventions. We suggest more flexible and easily practiced dieting regimens such as IF due to its more adaptable and practical nature.
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Affiliation(s)
- Christy Yeung
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada; (C.Y.); (I.Q.S.)
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Irisa Qianwen Shi
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada; (C.Y.); (I.Q.S.)
| | - Hoon-Ki Sung
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada; (C.Y.); (I.Q.S.)
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Correspondence:
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Schiller M, Ben-Shaanan TL, Rolls A. Neuronal regulation of immunity: why, how and where? Nat Rev Immunol 2021; 21:20-36. [PMID: 32811994 DOI: 10.1038/s41577-020-0387-1] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/18/2020] [Indexed: 02/07/2023]
Abstract
Neuroimmunology is one of the fastest-growing fields in the life sciences, and for good reason; it fills the gap between two principal systems of the organism, the nervous system and the immune system. Although both systems affect each other through bidirectional interactions, we focus here on one direction - the effects of the nervous system on immunity. First, we ask why is it beneficial to allow the nervous system any control over immunity? We evaluate the potential benefits to the immune system that arise by taking advantage of some of the brain's unique features, such as its capacity to integrate and synchronize physiological functions, its predictive capacity and its speed of response. Second, we explore how the brain communicates with the peripheral immune system, with a focus on the endocrine, sympathetic, parasympathetic, sensory and meningeal lymphatic systems. Finally, we examine where in the brain this immune information is processed and regulated. We chart a partial map of brain regions that may be relevant for brain-immune system communication, our goal being to introduce a conceptual framework for formulating new hypotheses to study these interactions.
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Affiliation(s)
- Maya Schiller
- Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Tamar L Ben-Shaanan
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA
- Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA, USA
| | - Asya Rolls
- Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel.
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Wilhelmi I, Grunwald S, Gimber N, Popp O, Dittmar G, Arumughan A, Wanker EE, Laeger T, Schmoranzer J, Daumke O, Schürmann A. The ARFRP1-dependent Golgi scaffolding protein GOPC is required for insulin secretion from pancreatic β-cells. Mol Metab 2020; 45:101151. [PMID: 33359402 PMCID: PMC7811047 DOI: 10.1016/j.molmet.2020.101151] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/15/2020] [Accepted: 12/15/2020] [Indexed: 12/13/2022] Open
Abstract
Objective Hormone secretion from metabolically active tissues, such as pancreatic islets, is governed by specific and highly regulated signaling pathways. Defects in insulin secretion are among the major causes of diabetes. The molecular mechanisms underlying regulated insulin secretion are, however, not yet completely understood. In this work, we studied the role of the GTPase ARFRP1 on insulin secretion from pancreatic β-cells. Methods A β-cell-specific Arfrp1 knockout mouse was phenotypically characterized. Pulldown experiments and mass spectrometry analysis were employed to screen for new ARFRP1-interacting proteins. Co-immunoprecipitation assays as well as super-resolution microscopy were applied for validation. Results The GTPase ARFRP1 interacts with the Golgi-associated PDZ and coiled-coil motif-containing protein (GOPC). Both proteins are co-localized at the trans-Golgi network and regulate the first and second phase of insulin secretion by controlling the plasma membrane localization of the SNARE protein SNAP25. Downregulation of both GOPC and ARFRP1 in Min6 cells interferes with the plasma membrane localization of SNAP25 and enhances its degradation, thereby impairing glucose-stimulated insulin release from β-cells. In turn, overexpression of SNAP25 as well as GOPC restores insulin secretion in islets from β-cell-specific Arfrp1 knockout mice. Conclusion Our results identify a hitherto unrecognized pathway required for insulin secretion at the level of trans-Golgi sorting. β-cell specific deletion of the trans-Golgi residing small GTPase ARFRP1 leads to elevated blood glucose levels in mice. GOPC is a newly identified ARFRP1 dependent scaffolding protein. ARFRP1 and GOPC are required for glucose-stimulated insulin secretion from pancreatic β-cells.
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Affiliation(s)
- Ilka Wilhelmi
- German Institute of Human Nutrition (DIfE) Potsdam-Rehbruecke, Germany; German Center for Diabetes Research (DZD) Munich Neuherberg, Germany
| | - Stephan Grunwald
- Max-Delbrück Center for Molecular Medicine in the Helmholtz Association Berlin, Germany; Institute of Chemistry and Biochemistry, Freie Universität Berlin, Germany
| | - Niclas Gimber
- Advanced Medical Bioimaging Core Facility - AMBIO, Charité-Universitätsmedizin Berlin, Germany
| | - Oliver Popp
- Max-Delbrück Center for Molecular Medicine in the Helmholtz Association Berlin, Germany
| | - Gunnar Dittmar
- Max-Delbrück Center for Molecular Medicine in the Helmholtz Association Berlin, Germany
| | - Anup Arumughan
- Neuroproteomics, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC) Berlin, Germany
| | - Erich E Wanker
- Neuroproteomics, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC) Berlin, Germany
| | - Thomas Laeger
- German Institute of Human Nutrition (DIfE) Potsdam-Rehbruecke, Germany; German Center for Diabetes Research (DZD) Munich Neuherberg, Germany
| | - Jan Schmoranzer
- Advanced Medical Bioimaging Core Facility - AMBIO, Charité-Universitätsmedizin Berlin, Germany
| | - Oliver Daumke
- Max-Delbrück Center for Molecular Medicine in the Helmholtz Association Berlin, Germany; Institute of Chemistry and Biochemistry, Freie Universität Berlin, Germany
| | - Annette Schürmann
- German Institute of Human Nutrition (DIfE) Potsdam-Rehbruecke, Germany; German Center for Diabetes Research (DZD) Munich Neuherberg, Germany; University of Potsdam, Institute of Nutritional Sciences, Nuthetal, Germany; Faculty of Health Sciences, Joint Faculty of the Brandenburg University of Technology Cottbus - Senftenberg, the Brandenburg Medical School Theodor Fontane and the University of Potsdam, Germany.
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Krishnan S, Adams SH, Witbracht MG, Woodhouse LR, Piccolo BD, Thomas AP, Souza EC, Horn WF, Gertz ER, Van Loan MD, Keim NL. Weight Loss, but Not Dairy Composition of Diet, Moderately Affects Satiety and Postprandial Gut Hormone Patterns in Adults. J Nutr 2020; 151:245-254. [PMID: 33245130 PMCID: PMC8096231 DOI: 10.1093/jn/nxaa327] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/28/2020] [Accepted: 10/05/2020] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Inclusion of dairy in diet patterns has been shown to have mixed effects on weight loss. A prevailing hypothesis is that dairy improves weight loss by influencing endocrine systems associated with satiety and food intake regulation. OBJECTIVES The objective of the current study was to evaluate the effect of weight loss with or without adequate dietary dairy on subjective and objective appetitive measures. METHODS Men and women who were habitual low dairy consumers (n = 65, 20-50 y) participated in a 12-wk randomized controlled feeding weight loss trial. During the 12-wk intervention, a low-dairy (<1 serving dairy/d) was compared with an adequate-dairy (3-4 servings dairy/d) diet, both with a 500-kcal deficit/d. Test days, before and at the end of the intervention, began with 2 fasting blood draws and visual analog scale (VAS) measures, followed by a standard breakfast (25% of prescribed restricted calories), 5 postbreakfast blood draws and VASs, a standard lunch (40% of restricted energy amount), and 12 postlunch blood draws and VASs. Blood samples were used for satiety hormone measurements. On a separate day when matching standard meals were consumed, an ad libitum buffet meal was provided as dinner, at a self-selected time. Meal duration and intermeal interval were recorded. RESULTS Weight loss (-6.1 kg), irrespective of dairy, resulted in reduced fasting insulin (-20%) and leptin (-25%), and increased fasting acylated ghrelin (+25%) and VAS desire to eat (+18%) (P < 0.05). There were no effects of dairy on objective or subjective satiety measures. Weight loss marginally reduced the intermeal interval (289 min compared with 276 min, P = 0.059) between lunch and the ad libitum buffet. CONCLUSIONS These results do not support the hypothesis that inclusion of dairy in long-term dietary patterns influences appetite during weight loss. Weight loss per se has a modest impact on select systems that regulate hunger and satiety.This trial was registered at clinicaltrials.gov as NCT00858312.
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Affiliation(s)
- Sridevi Krishnan
- Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - Sean H Adams
- Present address for SHA: Department of Surgery and Center for Alimentary and Metabolic Science, UC Davis School of Medicine, Sacramento, CA
| | - Megan G Witbracht
- Present address for MGW: Institute for Memory Impairments and Neurological Disorders, University of California Irvine, Irvine, CA
| | - Leslie R Woodhouse
- Western Human Nutrition Research Center, USDA Agricultural Research Service, Davis, CA, USA
| | - Brian D Piccolo
- Present address for BDP: Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR
| | - Anthony P Thomas
- Present address for APT: Jarrow Formulas, Los Angeles, CA. Present address for ECS: Medical Center, University of California Davis, Davis, CA
| | - Elaine C Souza
- Western Human Nutrition Research Center, USDA Agricultural Research Service, Davis, CA, USA
| | - William F Horn
- Western Human Nutrition Research Center, USDA Agricultural Research Service, Davis, CA, USA
| | - Erik R Gertz
- Western Human Nutrition Research Center, USDA Agricultural Research Service, Davis, CA, USA
| | - Marta D Van Loan
- Department of Nutrition, University of California, Davis, Davis, CA, USA,Western Human Nutrition Research Center, USDA Agricultural Research Service, Davis, CA, USA
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A Study on the Immunohistochemical Expressions of Leptin and Leptin Receptor in Clear Cell Renal Cell Carcinoma. BIOMED RESEARCH INTERNATIONAL 2020; 2020:3682086. [PMID: 32802842 PMCID: PMC7424391 DOI: 10.1155/2020/3682086] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 06/22/2020] [Indexed: 12/17/2022]
Abstract
Background The mechanisms that link obesity and cancer development are not well-defined. Investigation of leptin and leptin receptor expressions may help define some of the mechanisms. These proteins are known for associating with the immune response, angiogenesis and, signalling pathways such as JAK2/STAT3, PI3K, and AKT pathways. Tissue proteins can be easily detected with immunohistochemistry (IHC), a technique widely used both in diagnostic and research laboratories. The identification of altered levels of leptin and leptin receptor proteins in tumour tissues may lead to targeted treatment for cancer. Objective The objective of this study was to use IHC to compare leptin and leptin receptor expressions in clear cell renal cell carcinomas (ccRCC) in non-obese and obese patients to determine the association between these proteins with the clinicopathological features and prognosis of ccRCC. Patients and Methods. The study involved 60 patients who underwent nephrectomy of which 34 were obese, as assessed using body mass index (BMI). Nephrectomy samples provided tissues of ccRCC and adjacent non-cancerous kidney. The intensity and localization of leptin and leptin receptor protein expressions were evaluated using IHC and correlated with clinicopathological features and clinical outcomes. Aperio ImageScope morphometry and digital pathology were applied to assess the IHC results. The chi-square test was used to determine if there was any significant association between the proteins and the clinicopathological features. The Kaplan-Meier test was used to determine the overall survival, disease-free survival, and recurrence-free survival. A value of p < 0.05 was considered significant. Results There was neither significant difference in the overall cellular and nuclear expressions of leptin and leptin receptor between non-cancerous kidney and ccRCC tissues nor in non-obese and obese individuals with ccRCC. Conclusion In this present study, it was revealed that leptin and leptin receptor were not associated with tumour characteristics and progression of ccRCC patients. Interestingly, nuclear expression of leptin was significantly associated with overall survival. However, the significance of these proteins as biomarkers in other RCC histotypes is still unclear.
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nimrouzi M, Abolghasemi J, Sharifi MH, Nasiri K, Akbari A. Thyme oxymel by improving of inflammation, oxidative stress, dyslipidemia and homeostasis of some trace elements ameliorates obesity induced by high-fructose/fat diet in male rat. Biomed Pharmacother 2020; 126:110079. [DOI: 10.1016/j.biopha.2020.110079] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 03/04/2020] [Accepted: 03/05/2020] [Indexed: 12/17/2022] Open
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Kumar U, Singh S. Role of Somatostatin in the Regulation of Central and Peripheral Factors of Satiety and Obesity. Int J Mol Sci 2020; 21:ijms21072568. [PMID: 32272767 PMCID: PMC7177963 DOI: 10.3390/ijms21072568] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/29/2020] [Accepted: 04/02/2020] [Indexed: 02/06/2023] Open
Abstract
Obesity is one of the major social and health problems globally and often associated with various other pathological conditions. In addition to unregulated eating behaviour, circulating peptide-mediated hormonal secretion and signaling pathways play a critical role in food intake induced obesity. Amongst the many peptides involved in the regulation of food-seeking behaviour, somatostatin (SST) is the one which plays a determinant role in the complex process of appetite. SST is involved in the regulation of release and secretion of other peptides, neuronal integrity, and hormonal regulation. Based on past and recent studies, SST might serve as a bridge between central and peripheral tissues with a significant impact on obesity-associated with food intake behaviour and energy expenditure. Here, we present a comprehensive review describing the role of SST in the modulation of multiple central and peripheral signaling molecules. In addition, we highlight recent progress and contribution of SST and its receptors in food-seeking behaviour, obesity (orexigenic), and satiety (anorexigenic) associated pathways and mechanism.
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Liu K, Liu B, Heilbronn LK. Intermittent fasting: What questions should we be asking? Physiol Behav 2020; 218:112827. [PMID: 32014525 DOI: 10.1016/j.physbeh.2020.112827] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/30/2020] [Accepted: 01/31/2020] [Indexed: 12/13/2022]
Abstract
Obesity and overweight are contributing factors to chronic disease. Lifestyle management, which incorporates advice on moderate daily caloric restriction (CR) and physical activity to reduce body weight, is the cornerstone treatment in practice. Intermittent fasting (IF) is a popular alternative that cycles fasting with unrestricted eating periods. IF appears to be an equivalent approach to CR to induce weight loss, although as yet there is limited long-term evidence. Some controversy exists as to whether IF yields superior health benefits to CR. Discrepancies between studies may be due to the heterogeneity in the design of IF protocols. There is also still some concerns around the safety and feasibility of IF compared to CR, which has not been well-studied to date. Moreover, the underlying cellular pathways that are differentially activated in IF in comparison to CR requires further investigation in humans. This review summarises trials that have compared IF with CR, and discusses evidence from animal studies to raise questions for future research in humans.
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Affiliation(s)
- Kai Liu
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia; Lifelong Health Theme, South Australia Health and Medical Research Institute Adelaide, South Australia, Australia.
| | - Bo Liu
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia; Lifelong Health Theme, South Australia Health and Medical Research Institute Adelaide, South Australia, Australia
| | - Leonie K Heilbronn
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia; Lifelong Health Theme, South Australia Health and Medical Research Institute Adelaide, South Australia, Australia
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English A, Irwin N. Nonclassical Islet Peptides: Pancreatic and Extrapancreatic Actions. CLINICAL MEDICINE INSIGHTS-ENDOCRINOLOGY AND DIABETES 2019; 12:1179551419888871. [PMID: 32425629 PMCID: PMC7216561 DOI: 10.1177/1179551419888871] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 10/21/2019] [Indexed: 02/06/2023]
Abstract
The pancreas has physiologically important endocrine and exocrine functions; secreting enzymes into the small intestine to aid digestion and releasing multiple peptide hormones via the islets of Langerhans to regulate glucose metabolism, respectively. Insulin and glucagon, in combination with ghrelin, pancreatic polypeptide and somatostatin, are the main classical islet peptides critical for the maintenance of blood glucose. However, pancreatic islets also synthesis numerous ‘nonclassical’ peptides that have recently been demonstrated to exert fundamental effects on overall islet function and metabolism. As such, insights into the physiological relevance of these nonclassical peptides have shown impact on glucose metabolism, insulin action, cell survival, weight loss, and energy expenditure. This review will focus on the role of individual nonclassical islet peptides to stimulate pancreatic islet secretions as well as regulate metabolism. In addition, the more recognised actions of these peptides on satiety and energy regulation will also be considered. Furthermore, recent advances in the field of peptide therapeutics and obesity-diabetes have focused on the benefits of simultaneously targeting several hormone receptor signalling cascades. The potential for nonclassical islet hormones within such combinational approaches will also be discussed.
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Affiliation(s)
- Andrew English
- School of Pharmacy and Pharmaceutical Sciences, Ulster University, Coleraine, Northern Ireland, UK
| | - Nigel Irwin
- School of Pharmacy and Pharmaceutical Sciences, Ulster University, Coleraine, Northern Ireland, UK
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Vedel L, Nøhr AC, Gloriam DE, Bräuner-Osborne H. Pharmacology and function of the orphan GPR139 G protein-coupled receptor. Basic Clin Pharmacol Toxicol 2019; 126 Suppl 6:35-46. [PMID: 31132229 PMCID: PMC7318219 DOI: 10.1111/bcpt.13263] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 05/21/2019] [Indexed: 12/17/2022]
Abstract
G protein-coupled receptors (GPCRs) constitute the largest family of receptors and membrane proteins in the human genome with ~800 members of which half are olfactory. GPCRs are activated by a very broad range of endogenous signalling molecules and are involved in a plethora of physiological functions. All GPCRs contain a transmembrane domain, consisting of a bundle of seven α-helices spanning the cell membrane, and forming the majority of the known ortho- or allosteric ligand binding sites. Due to their many physiological functions and the accessible and druggable transmembrane pocket, GPCRs constitute the largest family of drug targets mediating the actions of 34% of currently marketed drugs. GPCRs activate one or more of the four G protein families (Gq/11 , Gi/o , Gs and G12/13 ) and/or ß-arrestin. About a third of the non-olfactory GPCRs are referred to as orphan receptors which means that their endogenous agonist(s) have not yet been found or firmly established. In this MiniReview, we focus on the orphan GPR139 receptor, for which the aromatic amino acids L-Trp and L-Phe as well as ACTH/α-MSH-related peptides have been proposed as endogenous agonists. GPR139 has been reported to activate several G protein pathways of which Gq/11 is the primary one. The receptor shows the highest expression in the striatum, thalamus, hypothalamus, pituitary and habenula of the human, rat and mouse CNS. We review the surrogate agonists and antagonists that have been published as well as the agonist pharmacophore and binding site. Finally, the putative physiological functions and therapeutic potential are outlined.
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Affiliation(s)
- Line Vedel
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | - Anne Cathrine Nøhr
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | - David E Gloriam
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | - Hans Bräuner-Osborne
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
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Zouhal H, Sellami M, Saeidi A, Slimani M, Abbassi-Daloii A, Khodamoradi A, El Hage R, Hackney AC, Ben Abderrahman A. Effect of physical exercise and training on gastrointestinal hormones in populations with different weight statuses. Nutr Rev 2019; 77:455-477. [DOI: 10.1093/nutrit/nuz005] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Hassane Zouhal
- Movement, Sport and Health Sciences Laboratory, University of Rennes 2, Rennes, France
| | - Maha Sellami
- Sport Science Program, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Ayoub Saeidi
- Department of Biological Sciences in Sport and Health, Faculty of Sport Sciences and Health, Shahid Beheshti University, Tehran, Iran
| | - Maamer Slimani
- Higher Institute of Sport and Physical Education of Ksar Said, Tunis, Tunisia
| | - Asieh Abbassi-Daloii
- Department of Sport Physiology, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
| | - Arash Khodamoradi
- Department of Biological Sciences in Sport and Health, Faculty of Sport Sciences and Health, Shahid Beheshti University, Tehran, Iran
| | - Rawad El Hage
- Department of Physical Education, Faculty of Arts and Social Sciences, University of Balamand, El-Koura, Lebanon
| | - Anthony C Hackney
- Department of Exercise & Sport Science, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Abderraouf Ben Abderrahman
- Laboratory of Biomonitoring of the Environment, Faculty of Science of Bizerte, University of Carthage, Carthage, Tunisia
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Petkus DL, Murray-Kolb LE, De Souza MJ. The Unexplored Crossroads of the Female Athlete Triad and Iron Deficiency: A Narrative Review. Sports Med 2018; 47:1721-1737. [PMID: 28290159 DOI: 10.1007/s40279-017-0706-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Despite the severity and prevalence of iron deficiency in exercising women, few published reports have explored how iron deficiency interacts with another prevalent and severe condition in exercising women: the 'female athlete triad.' This review aims to describe how iron deficiency may interact with each component of the female athlete triad, that is, energy status, reproductive function, and bone health. The effects of iron deficiency on energy status are discussed in regards to thyroid function, metabolic fuel availability, eating behaviors, and energy expenditure. The interactions between iron deficiency and reproductive function are explored by discussing the potentially impaired fertility and hyperprolactinemia due to iron deficiency and the alterations in iron metabolism due to menstrual blood loss and estrogen exposure. The interaction of iron deficiency with bone health may occur via dysregulation of the growth hormone/insulin-like growth factor-1 axis, hypoxia, and hypothyroidism. Based on these discussions, several future directions for research are presented.
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Affiliation(s)
- Dylan L Petkus
- Department of Kinesiology, The Pennsylvania State University, 104 Noll Laboratory, University Park, PA, 16802, USA
| | - Laura E Murray-Kolb
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Mary Jane De Souza
- Department of Kinesiology, The Pennsylvania State University, 104 Noll Laboratory, University Park, PA, 16802, USA.
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Hunschede S, Schwartz A, Kubant R, Thomas SG, Anderson GH. The role of IL-6 in exercise-induced anorexia in normal-weight boys. Appl Physiol Nutr Metab 2018; 43:979-987. [DOI: 10.1139/apnm-2018-0019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Our previous study showed that interleukin-6 (IL-6) is associated with suppression of appetite after high-intensity exercise (HIEX), but an independent role in food intake (FI) was not defined. We hypothesized that IL-6 suppresses appetite and FI, independently of appetite hormones, after HIEX in normal-weight (NW) boys. We investigated the effect of HIEX, with and without the inflammation inhibitor ibuprofen (IBU), on IL-6, other biomarkers of inflammation and appetite, FI, and ratings of appetite in NW boys. Fifteen NW boys (aged 13–18 years) were randomly assigned in a crossover design to 4 sessions: (i) water and rest, (ii) IBU and rest, (iii) water and HIEX, and (iv) IBU and HIEX. HIEX consisted of three 10-min bouts of exercise at 75% of maximal oxygen uptake with 90 s of active rest between bouts. IBU (300 mg) was given as a liquid suspension. FI, ratings of appetite, and plasma biomarkers of appetite, inflammation, stress, and glucose control were measured. FI was not affected by HIEX or IBU. Appetite increased over time (p = 0.002) but was lower after HIEX (p < 0.001) and not affected by IBU. HIEX, but not IBU, resulted in higher levels of IL-6 (p < 0.001) and cortisol (p < 0.001) and lower active ghrelin (p < 0.001). IL-6 correlated with active ghrelin (r = 0.37; p = 0.036) and cortisol (r = 0.26; p = 0.049). An independent role for IL-6 in appetite suppression was not supported. However, IL-6 was correlated with active ghrelin and cortisol, thus potentially mediating appetite via these interactions.
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Affiliation(s)
- Sascha Hunschede
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON M5S 3E2, Canada
| | - Alexander Schwartz
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON M5S 3E2, Canada
| | - Ruslan Kubant
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON M5S 3E2, Canada
| | - Scott G. Thomas
- Faculty of Kinesiology & Physical Education, University of Toronto, Toronto, ON M5S 2C9, Canada
| | - G. Harvey Anderson
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON M5S 3E2, Canada
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, ON M5S 2J7, Canada
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Review article: Role of satiety hormones in anorexia induction by Trichothecene mycotoxins. Food Chem Toxicol 2018; 121:701-714. [PMID: 30243968 DOI: 10.1016/j.fct.2018.09.034] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/12/2018] [Accepted: 09/15/2018] [Indexed: 12/27/2022]
Abstract
The trichothecenes, produced by Fusarium, contaminate animal feed and human food in all stages of production and lead to a large spectrum of adverse effects for animal and human health. An hallmark of trichothecenes toxicity is the onset of emesis followed by anorexia and food intake reduction in different animal species (mink, mice and pig). The modulation of emesis and anorexia can result from a direct action of trichothecenes in the brain or from an indirect action in the gastrointestinal tract. The direct action of trichothecenes involved specific brain areas such as nucleate tractus solitarius in the brainstem and the arcuate nuclei in the hypothalamus. Activation of these areas in the brain leads to the activation of specific neuronal populations containing anorexigenic factors (POMC and CART). The indirect action of trichothecenes in the gastrointestinal tract involved, by enteroendocrine cells, the secretion of several gut hormones such as cholecystokinin (CCK) and peptide YY (PYY) but also glucagon-like peptide 1 (GLP-1), gastric inhibitory peptide (GIP) and 5-hydroxytryptamine (5-HT), which transmitted signals to the brain via the gut-brain axis. This review summarizes current knowledge on the effects of trichothecenes, especially deoxynivalenol, on emesis and anorexia and discusses the mechanisms underlying trichothecenes-induced food reduction.
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SAĞKAN ÖZTÜRK A, ARPACI A. Obezite ve Ghrelin/Leptin İlişkisi. MUSTAFA KEMAL ÜNIVERSITESI TIP DERGISI 2018. [DOI: 10.17944/mkutfd.328412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Mandal A, Prabhavalkar KS, Bhatt LK. Gastrointestinal hormones in regulation of memory. Peptides 2018; 102:16-25. [PMID: 29466709 DOI: 10.1016/j.peptides.2018.02.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 02/13/2018] [Accepted: 02/14/2018] [Indexed: 12/16/2022]
Abstract
The connection between the gastrointestinal hormones and the brain has been established many years ago. This relation is termed the gut-brain axis (GBA). The GBA is a bidirectional communication which not only regulates gastrointestinal homeostasis but is also linked with higher emotional and cognitive functions. Hypothalamus plays a critical role in the regulation of energy metabolism, nutrient partitioning and control of feeding behaviors. Various gut hormones are released inside the gastrointestinal tract on food intake. These hormones act peripherally and influence the different responses of the tissues to the food intake, but do also have effects on the brain. The hypothalamus, in turn, integrates visceral function with limbic system structures such as hippocampus, amygdala, and cerebral cortex. The hippocampus has been known for its involvement in the cognitive function and the modulation of synaptic plasticity. This review aims to establish the role of various gut hormones in learning and memory, through the interaction of various receptors in the hippocampus. Understanding their role in memory can also aid in finding novel therapeutic strategies for the treatment of the neurological disorders associated with memory dysfunctions.
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Affiliation(s)
- Anwesha Mandal
- Department of Pharmacology, SVKM's Dr Bhanuben Nanavati College of Pharmacy, Vile Parle (W), Mumbai, India
| | - Kedar S Prabhavalkar
- Department of Pharmacology, SVKM's Dr Bhanuben Nanavati College of Pharmacy, Vile Parle (W), Mumbai, India.
| | - Lokesh K Bhatt
- Department of Pharmacology, SVKM's Dr Bhanuben Nanavati College of Pharmacy, Vile Parle (W), Mumbai, India
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Polese B, Nicolai E, Genovese D, Verlezza V, La Sala CN, Aiello M, Inglese M, Incoronato M, Sarnelli G, De Rosa T, Schiatti A, Mondelli F, Ercolini D, Cuomo R. Postprandial Gastrointestinal Function Differs after Acute Administration of Sourdough Compared with Brewer's Yeast Bakery Products in Healthy Adults. J Nutr 2018; 148:202-208. [PMID: 29490103 DOI: 10.1093/jn/nxx049] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 11/21/2017] [Indexed: 11/13/2022] Open
Abstract
Background Europeans consume large quantities of bakery products, although these are known as one of the food categories that potentially leads to postprandial symptoms (such as fullness and bloating). Objective The aim of this study was to evaluate the effects of sourdough baked goods on gastric emptying and gastrointestinal fermentation and symptoms in healthy people. Methods In a double-blind, randomized crossover study, 2 sourdough croissants (SCs) or 2 brewer's yeast croissants (BCs) were served as single meals to 17 healthy adults [9 women; age range: 18-40 y; body mass index range (in kg/m2): 18-24]. Gastric volume (GV) was evaluated by magnetic resonance to calculate gastric-emptying rate in the 3-h interval after croissant ingestion. A hydrogen breath test was performed to measure hydrogen production after SC and BC ingestion. Palatability and postprandial gastrointestinal symptoms (discomfort, nausea, fullness, and bloating) over a 4-h period after the meal were evaluated. The area under the curve (AUC) was used to evaluate the overall effects on all variables tested. Results The total GV AUC was reduced by 11% during the 3 h after the consumption of SCs compared with BCs (P = 0.02). Hydrogen production during the 4-h interval after ingestion of SCs was 30% lower than after BCs (P = 0.03). SCs were rated as being >2 times as palatable as BCs (P < 0.001). The overall severity of postprandial symptoms was 36% lower during the 4 h after intake of SCs compared with BCs (P = 0.05). Conclusion Sourdough bakery products could promote better postprandial gastrointestinal function in healthy adults and be more acceptable than those prepared with brewer's yeast. This trial was registered at www.clinicaltrials.gov as NCT03207516.
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Affiliation(s)
- Barbara Polese
- Department of Clinical Medicine and Surgery, Division of Gastroenterology, University of Naples "Federico II", Naples, Italy
| | - Emanuele Nicolai
- Istituto di Ricovero e Cura a Carattere Scientifico - Ricerca Diagnostica e Nucleare (IRCCS-SDN), Naples, Italy
| | - Daniela Genovese
- Department of Clinical Medicine and Surgery, Division of Gastroenterology, University of Naples "Federico II", Naples, Italy
| | - Viviana Verlezza
- Department of Clinical Medicine and Surgery, Division of Gastroenterology, University of Naples "Federico II", Naples, Italy
| | - Carmine N La Sala
- Department of Clinical Medicine and Surgery, Division of Gastroenterology, University of Naples "Federico II", Naples, Italy
| | - Marco Aiello
- Istituto di Ricovero e Cura a Carattere Scientifico - Ricerca Diagnostica e Nucleare (IRCCS-SDN), Naples, Italy
| | - Marianna Inglese
- Istituto di Ricovero e Cura a Carattere Scientifico - Ricerca Diagnostica e Nucleare (IRCCS-SDN), Naples, Italy
| | - Mariarosaria Incoronato
- Istituto di Ricovero e Cura a Carattere Scientifico - Ricerca Diagnostica e Nucleare (IRCCS-SDN), Naples, Italy
| | - Giovanni Sarnelli
- Department of Clinical Medicine and Surgery, Division of Gastroenterology, University of Naples "Federico II", Naples, Italy
| | | | | | | | - Danilo Ercolini
- Department of Agricultural Sciences, Division of Microbiology, University of Naples "Federico II" - Portici, Naples, Italy.,Task Force on Microbiome Studies, University of Naples "Federico II", Naples, Italy
| | - Rosario Cuomo
- Department of Clinical Medicine and Surgery, Division of Gastroenterology, University of Naples "Federico II", Naples, Italy.,Task Force on Microbiome Studies, University of Naples "Federico II", Naples, Italy
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Krishnan S, Hendriks HFJ, Hartvigsen ML, de Graaf AA. Feed-forward neural network model for hunger and satiety related VAS score prediction. Theor Biol Med Model 2016; 13:17. [PMID: 27387922 PMCID: PMC4936290 DOI: 10.1186/s12976-016-0043-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 06/10/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND An artificial neural network approach was chosen to model the outcome of the complex signaling pathways in the gastro-intestinal tract and other peripheral organs that eventually produce the satiety feeling in the brain upon feeding. METHODS A multilayer feed-forward neural network was trained with sets of experimental data relating concentration-time courses of plasma satiety hormones to Visual Analog Scales (VAS) scores. The network successfully predicted VAS responses from sets of satiety hormone data obtained in experiments using different food compositions. RESULTS The correlation coefficients for the predicted VAS responses for test sets having i) a full set of three satiety hormones, ii) a set of only two satiety hormones, and iii) a set of only one satiety hormone were 0.96, 0.96, and 0.89, respectively. The predicted VAS responses discriminated the satiety effects of high satiating food types from less satiating food types both in orally fed and ileal infused forms. CONCLUSIONS From this application of artificial neural networks, one may conclude that neural network models are very suitable to describe situations where behavior is complex and incompletely understood. However, training data sets that fit the experimental conditions need to be available.
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Affiliation(s)
- Shaji Krishnan
- Risk Analysis for Products In Development, TNO, Utrechtseweg 48, P.O. Box 360, Zeist, 3700 AJ, The Netherlands. .,Top Institute Food and Nutrition, Nieuwe Kanaal 9A, Wageningen, 6709 PA, The Netherlands.
| | - Henk F J Hendriks
- Top Institute Food and Nutrition, Nieuwe Kanaal 9A, Wageningen, 6709 PA, The Netherlands
| | - Merete L Hartvigsen
- Department of Endocrinology and Internal Medicine, Aarhus University, Tage-Hansens Gade 2, Aarhus C, DK-8000, Denmark
| | - Albert A de Graaf
- Risk Analysis for Products In Development, TNO, Utrechtseweg 48, P.O. Box 360, Zeist, 3700 AJ, The Netherlands.,Top Institute Food and Nutrition, Nieuwe Kanaal 9A, Wageningen, 6709 PA, The Netherlands
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Bo E, Farinetti A, Marraudino M, Sterchele D, Eva C, Gotti S, Panzica G. Adult exposure to tributyltin affects hypothalamic neuropeptide Y, Y1 receptor distribution, and circulating leptin in mice. Andrology 2016; 4:723-34. [PMID: 27310180 DOI: 10.1111/andr.12222] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 03/29/2016] [Accepted: 04/15/2016] [Indexed: 12/25/2022]
Abstract
Tributyltin (TBT), a pesticide used in antifouling paints, is toxic for aquatic invertebrates. In vertebrates, TBT may act in obesogen- inducing adipogenetic gene transcription for adipocyte differentiation. In a previous study, we demonstrated that acute administration of TBT induces c-fos expression in the arcuate nucleus. Therefore, in this study, we tested the hypothesis that adult exposure to TBT may alter a part of the nervous pathways controlling animal food intake. In particular, we investigated the expression of neuropeptide Y (NPY) immunoreactivity. This neuropeptide forms neural circuits dedicated to food assumption and its action is mediated by Y1 receptors that are widely expressed in the hypothalamic nuclei responsible for the regulation of food intake and energy homeostasis. To this purpose, TBT was orally administered at a dose of 0.025 mg/kg/day/body weight to adult animals [male and female C57BL/6 (Y1-LacZ transgenic mice] for 4 weeks. No differences were found in body weight and fat deposition, but we observed a significant increase in feed efficiency in TBT-treated male mice and a significant decrease in circulating leptin in both sexes. Computerized quantitative analysis of NPY immunoreactivity and Y1-related β-galactosidase activity demonstrated a statistically significant reduction in NPY and Y1 transgene expression in the hypothalamic circuit controlling food intake of treated male mice in comparison with controls. In conclusion, the present results indicate that adult exposure to TBT is profoundly interfering with the nervous circuits involved in the stimulation of food intake.
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Affiliation(s)
- E Bo
- Department Neuroscience "Rita Levi Montalcini", University of Torino, Torino, Italy.,Neuroscience Institute Cavalieri-Ottolenghi (NICO), Torino, Italy
| | - A Farinetti
- Department Neuroscience "Rita Levi Montalcini", University of Torino, Torino, Italy.,Neuroscience Institute Cavalieri-Ottolenghi (NICO), Torino, Italy
| | - M Marraudino
- Department Neuroscience "Rita Levi Montalcini", University of Torino, Torino, Italy.,Neuroscience Institute Cavalieri-Ottolenghi (NICO), Torino, Italy
| | - D Sterchele
- Department Neuroscience "Rita Levi Montalcini", University of Torino, Torino, Italy.,Neuroscience Institute Cavalieri-Ottolenghi (NICO), Torino, Italy
| | - C Eva
- Department Neuroscience "Rita Levi Montalcini", University of Torino, Torino, Italy.,National Institute of Neuroscience (INN), Torino, Italy.,Neuroscience Institute Cavalieri-Ottolenghi (NICO), Torino, Italy
| | - S Gotti
- Department Neuroscience "Rita Levi Montalcini", University of Torino, Torino, Italy.,Neuroscience Institute Cavalieri-Ottolenghi (NICO), Torino, Italy
| | - G Panzica
- Department Neuroscience "Rita Levi Montalcini", University of Torino, Torino, Italy.,National Institute of Neuroscience (INN), Torino, Italy.,Neuroscience Institute Cavalieri-Ottolenghi (NICO), Torino, Italy
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The Effect of Eating Speed at Breakfast on Appetite Hormone Responses and Daily Food Consumption. J Investig Med 2015; 63:22-8. [DOI: 10.1097/jim.0000000000000119] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Pasiakos SM, Caruso CM, Kellogg MD, Kramer FM, Lieberman HR. Appetite and endocrine regulators of energy balance after 2 days of energy restriction: insulin, leptin, ghrelin, and DHEA-S. Obesity (Silver Spring) 2011; 19:1124-30. [PMID: 21212768 DOI: 10.1038/oby.2010.316] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Using a double-blind, placebo-controlled crossover design, the effects of 48 h near complete energy restriction on endocrine regulators of appetite and satiety were assessed. Twelve men and one woman participated in this controlled, 2-day diet intervention study. One experimental trial was completed in a calorie deprived state (CAL-DEP; <10% of estimated energy requirements) and others in a fed condition (carbohydrate only and carbohydrate and fat; data were pooled and compared to CAL-DEP). Test meals containing prescribed energy intake and indistinguishable in sensory characteristics were provided during each trial. Glucose, insulin, leptin, ghrelin, cortisol, dehydroepiandrosterone-sulfate (DHEA-S), and satiety were repeatedly assessed. Mean glucose, insulin, and leptin concentrations were lower (P < 0.0001) for CAL-DEP compared to the fully fed (FED) state. Ghrelin and DHEA-S were higher (P < 0.0001) for CAL-DEP relative to FED. Cortisol levels declined each day regardless of diet (P < 0.0001) but were 32% higher (P < 0.01) at the conclusion of the session for CAL-DEP compared to FED. Satiety was 25% lower (P < 0.0001) for CAL-DEP relative to FED and decreased (P < 0.0001) over time regardless of diet. In the FED state, insulin (r = 0.55), glucose (r = 0.76), cortisol (r = -0.59), and DHEA-S (r = -0.62) were associated (P < 0.05) with satiety, but not during CAL-DEP. These findings show that 2 days of severe energy restriction alter several endocrine regulators of appetite independent of perception of increased hunger suggesting a physiological mechanism to explain overeating following acute periods of severe energy restriction.
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Affiliation(s)
- Stefan M Pasiakos
- Military Nutrition Division, U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts, USA.
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