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Farazi M, Houghton MJ, Nicolotti L, Murray M, Cardoso BR, Williamson G. Inhibition of human starch digesting enzymes and intestinal glucose transport by walnut polyphenols. Food Res Int 2024; 189:114572. [PMID: 38876610 DOI: 10.1016/j.foodres.2024.114572] [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: 03/13/2024] [Revised: 05/26/2024] [Accepted: 05/26/2024] [Indexed: 06/16/2024]
Abstract
One approach to controlling type 2 diabetes (T2D) is to lower postprandialglucose spikesby slowing down the digestion of carbohydrates and the absorption of glucose in the small intestine. The consumption of walnuts is associated with a reduced risk of chronic diseases such as T2D, suggested to be partly due to the high content of (poly)phenols. This study evaluated, for the first time, the inhibitory effect of a (poly)phenol-rich walnut extract on human carbohydrate digesting enzymes (salivary and pancreatic α-amylases, brush border sucrase-isomaltase) and on glucose transport across fully differentiated human intestinal Caco-2/TC7 monolayers. The walnut extract was rich in multiple (poly)phenols (70 % w/w) as analysed by Folin-Ciocalteau and by LCMS. It exhibited potent inhibition of both human salivary (IC50: 32.2 ± 2.5 µg walnut (poly)phenols (WP)/mL) and pancreatic (IC50: 56.7 ± 1.7 µg WP/mL) α-amylases, with weaker effects on human sucrase (IC50: 990 ± 20 µg WP/mL), maltase (IC50: 1300 ± 80 µg WP/mL), and isomaltase (IC25: 830 ± 60 µg WP/mL) activities. Selected individual walnut (poly)phenols inhibited human salivary α-amylase in the order: 1,3,4,6-tetragalloylglucose > ellagic acid pentoside > 1,2,6-tri-O-galloyl-β-D-glucopyranose, with no inhibition by ellagic acid, gallic acid and 4-O-methylgallic acid. The (poly)phenol-rich walnut extract also attenuated (up to 59 %) the transfer of 2-deoxy-D-glucose across differentiated Caco-2/TC7 cell monolayers. This is the first report on the effect of (poly)phenol-rich extracts from any commonly-consumed nut kernel on any human starch-digesting enzyme, and suggests a mechanism through which walnut consumption may lower postprandial glucose spikes and contribute to their proposed health benefits.
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Affiliation(s)
- Mena Farazi
- Department of Nutrition, Dietetics and Food, Monash University, BASE Facility, Level 1, 264 Ferntree Gully Road, Notting Hill, VIC 3168, Australia; Victorian Heart Institute, Monash University, Level 2, Victorian Heart Hospital, 631 Blackburn Road, Clayton, VIC 3168 Australia
| | - Michael J Houghton
- Department of Nutrition, Dietetics and Food, Monash University, BASE Facility, Level 1, 264 Ferntree Gully Road, Notting Hill, VIC 3168, Australia; Victorian Heart Institute, Monash University, Level 2, Victorian Heart Hospital, 631 Blackburn Road, Clayton, VIC 3168 Australia
| | - Luca Nicolotti
- The Australian Wine Research Institute, Adelaide, SA 5064, Australia; Metabolomics Australia, The Australian Wine Research Institute, Adelaide, SA 5064, Australia
| | - Margaret Murray
- Department of Nutrition, Dietetics and Food, Monash University, BASE Facility, Level 1, 264 Ferntree Gully Road, Notting Hill, VIC 3168, Australia; Department of Health Sciences and Biostatistics, Swinburne University of Technology, John St, Hawthorn, VIC 3122, Australia
| | - Barbara R Cardoso
- Department of Nutrition, Dietetics and Food, Monash University, BASE Facility, Level 1, 264 Ferntree Gully Road, Notting Hill, VIC 3168, Australia; Victorian Heart Institute, Monash University, Level 2, Victorian Heart Hospital, 631 Blackburn Road, Clayton, VIC 3168 Australia
| | - Gary Williamson
- Department of Nutrition, Dietetics and Food, Monash University, BASE Facility, Level 1, 264 Ferntree Gully Road, Notting Hill, VIC 3168, Australia; Victorian Heart Institute, Monash University, Level 2, Victorian Heart Hospital, 631 Blackburn Road, Clayton, VIC 3168 Australia.
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Arab A, Karimi E, Garaulet M, Scheer FAJL. Dietary patterns and insomnia symptoms: A systematic review and meta-analysis. Sleep Med Rev 2024; 75:101936. [PMID: 38714136 PMCID: PMC11179690 DOI: 10.1016/j.smrv.2024.101936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 03/18/2024] [Accepted: 03/25/2024] [Indexed: 05/09/2024]
Abstract
We aimed to systematically review and synthesize the available evidence regarding the link between dietary patterns and insomnia symptoms among the general population using observational studies. We reviewed 16,455 references, of which 37 studies met inclusion criteria with a total sample size of 591,223. There was a significant association of the Mediterranean diet (OR: 0.86; 95 % CI, 0.79, 0.93; P < 0.001; I2 = 32.68 %), a high-quality diet (OR: 0.66; 95 % CI, 0.48, 0.90; P = 0.010; I2 = 84.62 %), and an empirically-derived healthy dietary pattern (OR: 0.91; 95 % CI, 0.85, 0.98; P = 0.010; I2 = 57.14 %) with a decreased risk of insomnia symptoms. Moreover, the dietary glycemic index (OR: 1.16; 95 % CI, 1.08, 1.25; P < 0.001; I2 = 0.0 %), the dietary glycemic load (OR: 1.10; 95 % CI, 1.01, 1.20; P = 0.032; I2 = 74.36 %), and an empirically-derived unhealthy dietary pattern (OR: 1.20; 95 % CI, 1.01, 1.42; P = 0.040; I2 = 68.38 %) were linked with a higher risk of insomnia symptoms. Most individual studies were of good quality (NOS) but provided very low certainty of evidence (GRADE). Consistent data reveals that following healthy diets is associated with decreased insomnia symptoms prevalence, while adherence to an unhealthy pattern is associated with an increased prevalence of insomnia symptoms.
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Affiliation(s)
- Arman Arab
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA; Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, MA, USA.
| | - Elham Karimi
- Research Development Center, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran.
| | - Marta Garaulet
- Department of Physiology, Regional Campus of International Excellence, University of Murcia, Murcia, Spain; Biomedical Research Institute of Murcia, IMIB-Arrixaca-UMU, University Clinical Hospital, Murcia, Spain.
| | - Frank A J L Scheer
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA; Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, MA, USA.
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Bhalla D, Dinesh S, Sharma S, Sathisha GJ. Gut-Brain Axis Modulation of Metabolic Disorders: Exploring the Intertwined Neurohumoral Pathways and Therapeutic Prospects. Neurochem Res 2024; 49:847-871. [PMID: 38244132 DOI: 10.1007/s11064-023-04084-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 12/06/2023] [Accepted: 12/08/2023] [Indexed: 01/22/2024]
Abstract
A significant rise in metabolic disorders, frequently brought on by lifestyle choices, is alarming. A wide range of preliminary studies indicates the significance of the gut-brain axis, which regulates bidirectional signaling between the gastrointestinal tract and the cognitive system, and is crucial for regulating host metabolism and cognition. Intimate connections between the brain and the gastrointestinal tract provide a network of neurohumoral transmission that can transmit in both directions. The gut-brain axis successfully establishes that the wellness of the brain is always correlated with the extent to which the gut operates. Research on the gut-brain axis has historically concentrated on how psychological health affects how well the gastrointestinal system works. The latest studies, however, revealed that the gut microbiota interacts with the brain via the gut-brain axis to control phenotypic changes in the brain and in behavior. This study addresses the significance of the gut microbiota, the role of the gut-brain axis in management of various metabolic disorders, the hormonal and neural signaling pathways and the therapeutic treatments available. Its objective is to establish the significance of the gut-brain axis in metabolic disorders accurately and examine the link between the two while evaluating the therapeutic strategies to be incorporated in the future.
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Affiliation(s)
- Diya Bhalla
- Faculty of Life and Allied Health Sciences, MS Ramaiah University of Applied Science, Bangalore, 560048, India
| | - Susha Dinesh
- Department of Bioinformatics, BioNome, Bangalore, 560043, India
| | - Sameer Sharma
- Department of Bioinformatics, BioNome, Bangalore, 560043, India.
| | - Gonchigar Jayanna Sathisha
- Department of Post Graduate Studies and Research in Biochemistry, Jnanasahyadri, Kuvempu University, Shankaraghatta, Shimoga, 577451, India
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Kunasegaran T, Balasubramaniam VRMT, Thirunavuk Arasoo VJ, Palanisamy UD, Tan YK, Ramadas A. Diet, lifestyle and gut microbiota composition among Malaysian women with gestational diabetes mellitus: a prospective cohort study. Sci Rep 2024; 14:6891. [PMID: 38519592 PMCID: PMC10959929 DOI: 10.1038/s41598-024-57627-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/20/2024] [Indexed: 03/25/2024] Open
Abstract
The study addressed a significant gap in the profiling and understanding of the gut microbiota's influence on Malaysian Malay women with gestational diabetes mellitus (GDM). This prospective cohort study aimed to explore the intricate relationship between gut microbiota, dietary choices, and lifestyle factors among Malay women, both with and without GDM. The research specifically focused on participants during the second (T0) and third (T1) trimesters of pregnancy in Johor Bahru, Malaysia. In Part 1 of the study, a diverse pool of pregnant women at T0 was categorized into two groups: those diagnosed with GDM and those without GDM, with a total sample size of 105 individuals. The assessments encompassed demographic, clinical, lifestyle, and dietary factors at the T0 and T1 trimesters. Part 2 of the study delved into microbiome analysis, targeting a better understanding of the gut microbiota among the participants. Stool samples were randomly collected from 50% of the individuals in each group (GDM and non-GDM) at T0 and T1. The collected samples underwent processing, and 16s rRNA metagenomic analysis was employed to study the microbial composition. The results suggested an association between elevated body weight and glucose levels, poor sleep quality, lack of physical activity, greater intake of iron and meat, and reduced fruit consumption among women with GDM compared to non-GDM groups. The microbiome analysis revealed changes in microbial composition over time, with reduced diversity observed in the GDM group during the third trimester. The genera Lactiplantibacillus, Parvibacter, Prevotellaceae UCG001, and Vagococcus positively correlated with physical activity levels in GDM women in the second trimester. Similarly, the genus Victivallis exhibited a strong positive correlation with gravida and parity. On the contrary, the genus Bacteroides and Roseburia showed a negative correlation with omega-3 polyunsaturated fatty acids (PUFAs) in women without GDM in the third trimester. The study highlighted the multifaceted nature of GDM, involving a combination of lifestyle factors, dietary choices, and changes in gut microbiota composition. The findings emphasized the importance of considering these interconnected elements in understanding and managing gestational diabetes among Malaysian Malay women. Further exploration is essential to comprehend the mechanisms underlying this relationship and develop targeted interventions for effective GDM management.
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Affiliation(s)
- Thubasni Kunasegaran
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 47500, Bandar Sunway, Malaysia
| | - Vinod R M T Balasubramaniam
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 47500, Bandar Sunway, Malaysia
| | | | - Uma Devi Palanisamy
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 47500, Bandar Sunway, Malaysia
| | - Yen Ker Tan
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 47500, Bandar Sunway, Malaysia
- Mackay Base Hospital, Mackay, QLD, 4740, Australia
| | - Amutha Ramadas
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 47500, Bandar Sunway, Malaysia.
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Partsalaki I, Markantes GK, Michalaki MA. Low-Glycemic Load Diets and Thyroid Function: A Narrative Review and Future Perspectives. Nutrients 2024; 16:347. [PMID: 38337632 PMCID: PMC10857036 DOI: 10.3390/nu16030347] [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: 12/31/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
Nutrition and calorie intake are associated with subtle changes of thyroid function tests in subjects with an intact Hypothalamic-Pituitary-Thyroid axis. Iodine deficiency and extreme fluctuations in calorie intake, such as those that occur during periods of starvation or overfeeding could lead to alterations in thyroid hormones. The dietary macronutrient and micronutrient composition could also influence the thyroid function. Recently, Low-Glycemic Load (LGL) diets have become very popular and are effective in the treatment and/or prevention of several medical conditions, including diabetes, obesity, cardiovascular disease, and epilepsy. In this review, we report on the available data from the literature regarding the association between LGL diets and thyroid function or dysfunction. Several studies conducted in this field to date have yielded inconsistent results.
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Affiliation(s)
- Ioanna Partsalaki
- Department of Nutrition and Dietetics, University Hospital of Patras, 26504 Rio, Greece;
| | - Georgios K. Markantes
- Division of Endocrinology, Department of Internal Medicine, School of Health Sciences, University of Patras, 26504 Rio, Greece;
| | - Marina A. Michalaki
- Division of Endocrinology, Department of Internal Medicine, School of Health Sciences, University of Patras, 26504 Rio, Greece;
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Arabshahi V, Amiri R, Ghalishourani SS, Hasaniani N, Nozarian S, Tavasolian R, Khiabani A, Rahimlou M. Association between dietary insulin index and load with cardiometabolic risk factors and risk of metabolic syndrome among the patients with type 2 diabetes: a cross-sectional study. BMC Nutr 2023; 9:141. [PMID: 38049837 PMCID: PMC10694962 DOI: 10.1186/s40795-023-00803-z] [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: 10/17/2023] [Accepted: 11/27/2023] [Indexed: 12/06/2023] Open
Abstract
BACKGROUND This study aims to investigate the association between dietary insulin index (DII) and load (DIL) with cardiometabolic risk factors and the risk of developing metabolic syndrome (MetS) among patients with type 2 diabetes (T2DM). METHODS A cross-sectional study was conducted among 500 T2DM patients. Dietary intake was assessed using a validated food frequency questionnaire, and DII and DIL were calculated based on insulin response and energy content. Logistic regression analyses were performed to determine the odds ratios (ORs) for MetS. RESULTS Participants in the highest quartile of DIL had significantly higher odds of MetS (OR: 2.16; 95% CI: 1.02-4.25, P = 0.039) and hyperglycemia (OR: 1.69; 95% CI: 1.08-4.96, P = 0.032). We also discovered that patients in the highest quartile of DII had higher odds of MetS (OR: 1.69; 95% CI: 1.08-4.96, P = 0.034) and hyperglycemia (OR: 1.39; 95% CI: 1.04-4.12, P = 0.019). Furthermore, participants in the highest quartile of DIL (OR: 1.64; 95% CI: 1.00-2.59, P = 0.03) and DII (OR: 1.42; 95% CI: 1.05-1.95, P = 0.026) had higher odds of high waist circumference. When it came to hypertriglyceridemia, we found a significant association between DII and DIL only in the crude model, not the fully adjusted model. However, we didn't observe any significant association between DII and DIL with hypercholesteremia, Low HDL, and high blood pressure (P > 0.05). CONCLUSION Our study provides evidence suggesting that a higher DII and DIL may be associated with an increased risk of cardiometabolic risk factors and MetS in patients with T2DM.
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Affiliation(s)
- Vajeheh Arabshahi
- Department of Nutrition, School of Public health, Iran University of Medical Sciences, Tehran, Iran
| | - Roksaneh Amiri
- Department of Nutrition, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Samira Sadat Ghalishourani
- Department of Physical education and sport science, science of research branch, Islamic Azad University, Tehran, Iran
| | - Nazila Hasaniani
- Emam Reza Hospital affiliated with Social Security Organization, Urmia, Iran
| | - Shadi Nozarian
- Department of Nutrition, Ahvaz Jondishapur University of Medical Sciences, Ahvaz, Iran
| | - Ronia Tavasolian
- Department of Nutrition, School of Public Health, Zanjan University of Medical Sciences, Azadi Square, Zanjan, Iran
| | - Alireza Khiabani
- School of Medicine, Bam University of Medical Sciences, Bam, Iran
| | - Mehran Rahimlou
- Department of Nutrition, School of Public Health, Zanjan University of Medical Sciences, Azadi Square, Zanjan, Iran.
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H Ibrahim SM, Shahat EA, Amer LA, Aljohani AK. The Impact of Using Carbohydrate Counting on Managing Diabetic Patients: A Review. Cureus 2023; 15:e48998. [PMID: 38111457 PMCID: PMC10726644 DOI: 10.7759/cureus.48998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2023] [Indexed: 12/20/2023] Open
Abstract
Carbohydrate counting (CC) is a meal planning practice for diabetic patients, focusing on tracking the amount of carbohydrates in grams consumed at meals to manage blood glucose (BG) levels. The purpose of this narrative review is to evaluate the impact of CC in helping people with diabetes manage their condition. It reveals that CC offers superior glycemic control and flexibility compared to other food planning techniques. Specifically, when applied to children and teenage patients diagnosed with type 1 diabetes mellitus (T1DM), CC demonstrates the potential for substantial improvements in metabolic control without any adverse effects on weight or increased insulin requirements. In the context of T1DM, the combination of CC and the use of automated bolus calculators (ABCs) contributes to lowering glycated hemoglobin (HbA1c) levels. Furthermore, the study highlights that CC also holds promise in the management of type 2 diabetes mellitus (T2DM). In T2DM patients, adhering to a low glycemic index (GI) diet has proven to be more effective in controlling HbA1c and fasting BG levels compared to a higher GI diet or standard dietary control. This research underscores the evolving significance of CC as a pivotal component in diabetes management, attributed to increased awareness and education among patients. CC emerges as a versatile tool that can benefit individuals with various forms of diabetes by enhancing their glycemic control and overall quality of life. The findings affirm the impact of CC in improving patient outcomes, solidifying its status as a vital strategy in the multifaceted landscape of diabetes care.
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Affiliation(s)
| | | | - Lamar A Amer
- Medicine and Surgery, Taibah University, Medina, SAU
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Nam T, Kim A, Oh Y. Effectiveness of Chickpeas on Blood Sugar: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Nutrients 2023; 15:4556. [PMID: 37960209 PMCID: PMC10647263 DOI: 10.3390/nu15214556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/12/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
Diabetes affects one in eleven adults globally, with rising cases in the past 30 years. Type 1 and type 2 cause blood sugar problems, increasing cardiovascular risks. Dietary control, including chickpeas, is suggested but needs more research. Comprehensive searches were conducted across multiple databases for the randomized controlled trial efficacy of chickpea consumption to lower blood sugar levels to a healthy range, with data extraction and risk of bias assessment performed independently by two researchers. Statistical analysis was performed using RevMan 5.4, expressing continuous data as mean differences and risk ratios with 95% confidence intervals, and a summary of the findings is provided considering the variations in study characteristics. A total of 118 articles were initially identified from seven databases, primarily from Anglo-American countries, resulting in 12 selected studies after the identification and screening processes. These studies involved 182 participants, focusing on healthy or normoglycemic adults, and assessed the effects of chickpeas compared to various foods such as wheat, potatoes, pasta, sauce, cheese, rice, and corn. A meta-analysis involving a subset of studies demonstrated that chickpeas were more effective in reducing blood glucose iAUC compared to potatoes and wheat. Chickpeas offer the potential for blood sugar control through low starch digestibility, high fiber, protein, and hormonal effects. Although insulin benefits are seen, statistical significance varies, supporting their role in diabetic diets focusing on nutrient-rich foods over processed carbs.
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Affiliation(s)
- Taegwang Nam
- College of Korean Medicine, Woosuk University, Jeonju 54986, Republic of Korea;
| | - Anna Kim
- KM Data Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Yongtaek Oh
- College of Korean Medicine, Woosuk University, Jeonju 54986, Republic of Korea;
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Teeple K, Rajput P, Scinto S, Schoonmaker J, Davis C, Dinn M, McIntosh M, Krishnamurthy S, Plaut K, Casey T. Impact of high-fat diet and exposure to constant light on reproductive competence of female ICR mice. Biol Open 2023; 12:bio060088. [PMID: 37843404 PMCID: PMC10602010 DOI: 10.1242/bio.060088] [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: 07/24/2023] [Accepted: 08/19/2023] [Indexed: 10/17/2023] Open
Abstract
Obesity and exposure to light at night are prevalent in modern society and associated with changes in physiology and behavior that can affect a female's ability to support offspring growth during pregnancy and lactation. A 2X3 factor study of ICR mice was conducted to determine the effect of diet [control (CON; 10% fat) or high fat (HF; 60% fat)] and exposure to regular 12 h light:dark cycles (LD) or continuous low (L5) or high (L100) lux of light on gestation length, birth litter size, milk composition and litter growth to lactation day 12. HF diet reduced birth litter size, but increased postnatal d 12 litter weight (P<0.05), whereas constant light tended to increase litter weight (P=0.07). Continuous light increased gestation length, altered dam feed intake, increased serum prolactin and increased final dam and mammary gland weight (P<0.05), while decreasing mammary ATP content and milk lactose (P<0.05). Correlation analysis indicated a positive relationship between final litter weight and mammary size, metabolic stores (e.g. maternal fat pad weight), kcal of feed intake, and gestation length (P<0.05). Although CON mice spent more time eating than HF dams, the calorically dense HF diet was related to greater rates of litter growth to peak lactation. Constant light circadian disrupting effects appear to be confounded by a potential long day photoperiod response exemplified by higher circulating levels of prolactin and increased body and mammary weight of females exposed to these conditions. Other model systems may be better to study the interacting effects of obesity and circadian disruption on reproductive competence.
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Affiliation(s)
- Kelsey Teeple
- Department of Animal Science, Purdue University, West Lafayette, IN 47907, USA
| | - Prabha Rajput
- Neurotherapeutics Lab, Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, UP 221005, India
| | - Sara Scinto
- Department of Animal Science, Purdue University, West Lafayette, IN 47907, USA
| | - Jenna Schoonmaker
- Department of Animal Science, Purdue University, West Lafayette, IN 47907, USA
| | - Corrin Davis
- Department of Animal Science, Purdue University, West Lafayette, IN 47907, USA
| | - Michayla Dinn
- Department of Animal Science, Purdue University, West Lafayette, IN 47907, USA
| | - Mackenzie McIntosh
- Histology Core, College of Veterinary Medicine, Purdue University West Lafayette, IN 47907, USA
| | - Sairam Krishnamurthy
- Neurotherapeutics Lab, Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, UP 221005, India
| | - Karen Plaut
- Department of Animal Science, Purdue University, West Lafayette, IN 47907, USA
| | - Theresa Casey
- Department of Animal Science, Purdue University, West Lafayette, IN 47907, USA
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Rashid T, Afnan BH, Baloch AA, Mughal S, Hasan M, Khan MU. Dietary Patterns and Physical Activity Levels Among People With Type 2 Diabetes. Nutr Metab Insights 2023; 16:11786388231189591. [PMID: 37654771 PMCID: PMC10467306 DOI: 10.1177/11786388231189591] [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: 04/06/2023] [Accepted: 07/06/2023] [Indexed: 09/02/2023] Open
Abstract
Objective The aim of our study was to assess the association of eating habits with the dietary patterns of people with diabetes. Methods This cross-sectional study was conducted at National Institute of Diabetes and Endocrinology (NIDE), Dow University Hospital in Karachi, Pakistan. A total 301 patients aged >18 with type 2 diabetes came to Outpatient department were recruited. Structured questionnaire was used to assess general characteristics, Anthropometric measurements, biochemical markers, and dietary intake. Results A total of 301 patients with type 2 diabetes mellitus were included in this study. The average age of patients was 51.6 (SD ± 11.1) years which ranged from 21 to 80 years whereas the average BMI was 27.2 kg / m2 (SD ± 5.6). Overall, 42% of patients were found to often have less than 1 serving of fruit, and 45% had less than 3 servings of vegetables daily. Of all, 77 (26%) patients often distributed carbohydrates all over the day. Results revealed that HbA1c was higher in those patients who took more than 3 roti (approximately each roti weight 60-80 g) (P-value < .001) and full plate rice approximately 300 to 355 g cooked weight in a whole day (P-value < .001) as compared to those patients whose intake of roti was 3 or less than 3 and rice was a half plate. Moreover, out of 301 patients, 102 were found physically active (52% females and 48% males), while 199 were not active. Pain in legs and lack of motivation were common barrier to physical activity. Conclusion Our study revealed that patients' fruits and vegetable intake was not optimum, diet was not balanced and the quantity of starchy carbohydrates was not controlled which may affect their HBA1C levels. Proper counseling and awareness about the importance of a balanced diet and portion control in diabetes are needed.
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Affiliation(s)
- Thamina Rashid
- National Institute of Diabetes and Endocrinology, Dow University of Health Sciences Karachi, Pakistan
| | - Badder Hina Afnan
- Department of NILGID, Dow University of Health Sciences, Karachi, Pakistan
| | - Akhter Ali Baloch
- National Institute of Diabetes and Endocrinology, Dow University of Health Sciences Karachi, Pakistan
| | - Saba Mughal
- School of Public Health Dow University Health Sciences, Karachi, Pakistan
| | - Mohammad Hasan
- National Institute of Diabetes and Endocrinology, Dow University of Health Sciences Karachi, Pakistan
| | - Muhammad Umar Khan
- National Institute of Diabetes and Endocrinology, Dow University of Health Sciences Karachi, Pakistan
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Quarta A, Guarino M, Tripodi R, Giannini C, Chiarelli F, Blasetti A. Diet and Glycemic Index in Children with Type 1 Diabetes. Nutrients 2023; 15:3507. [PMID: 37630698 PMCID: PMC10459060 DOI: 10.3390/nu15163507] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/03/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023] Open
Abstract
In children with type 1 diabetes, a healthy lifestyle is important to control postprandial glycemia and to avoid hyperglycemic peaks that worsen the inflammatory state of vessels and tissues. Glycemic index and glycemic load are two important indexes which assess the quality and quantity of foods consumed during meals. The main macronutrients of the diet have a different effect on postprandial blood glucose levels, so it is important that diabetic children consume foods which determine a slower and steadier glycemic peak. In this review, we present the results of the most recent studies carried out in the pediatric population with T1D, whose aim was to analyze the effects of low-glycemic-index foods on glycemic control. The results are promising and demonstrate that diets promoting low-glycemic-index foods guarantee a greater glycemic stability with a reduction in postprandial hyperglycemic peaks. However, one of the main limitations is represented by the poor adherence of children to a healthy diet. In order to obtain satisfactory results, a possibility might be to ensure a balanced intake of low-, moderate- and high-glycemic-index foods, preferring those with a low glycemic index and limiting the consumption of the high- and moderate-glycemic-index types.
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Affiliation(s)
| | | | | | | | | | - Annalisa Blasetti
- Department of Pediatrics, University of Chieti—Pescara, G. D’Annunzio, 66100 Chieti, Italy; (A.Q.); (M.G.); (R.T.); (C.G.); (F.C.)
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12
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Du X, Jiang C, Wang S, Jing H, Mo L, Ma C, Wang H. Preparation, identification, and inhibitory mechanism of dipeptidyl peptidase IV inhibitory peptides from goat milk whey protein. J Food Sci 2023; 88:3577-3593. [PMID: 37458288 DOI: 10.1111/1750-3841.16694] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 06/06/2023] [Accepted: 06/21/2023] [Indexed: 08/05/2023]
Abstract
This study explores potential hypoglycemic mechanisms by preparing and identifying novel dipeptidyl peptidase IV (DPP-IV) inhibitory peptides from goat milk (GM) whey protein. Papain was used to hydrolyze the GM whey protein. After purification by ultrafiltration, the Sephadex column, and preparative RP-HPLC, the peptide inhibited DPP-IV, α-glucosidase, and α-amylase with IC50 of 0.34, 0.37, and 0.72 mg/mL, respectively. To further explore the inhibitory mechanism of peptides on DPP-IV, SPPEFLR, LDADGSY, YPVEPFT, and FNPTY were identified and synthesized for the first time, with IC50 values of 56.22, 52.16, 175.7, and 62.32 µM, respectively. Molecular docking and dynamics results show that SPPEFLR, LDADGSY, and FNPTY bind more tightly to the active pocket of DPP-IV, which was consistent with the in vitro activity. Furthermore, the first three N-terminals of SPPEFLR and FNPTY peptides exhibit proline characteristics and competitively inhibit DPP-IV. Notably, the first N-terminal leucine of LDADGSY may play a key role in inhibiting DPP-IV.
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Affiliation(s)
- Xiaojing Du
- The State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Chengyu Jiang
- The State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Shan Wang
- The State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Huijuan Jing
- The State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Ling Mo
- The State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Chaoyang Ma
- The State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Hongxin Wang
- The State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
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13
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Chaiyakul S, Ketkham N, Chaichana C, Khumkhana N, Deekum W, Wongshaya P, Suwanmalai T, Hutchinson C, Pramyothin P. Effects of a novel rice-based diabetes-specific formula on postprandial glucose and gastrointestinal hormones: a double-blinded multi-arm randomized crossover trial. Front Endocrinol (Lausanne) 2023; 14:1141497. [PMID: 37293492 PMCID: PMC10244629 DOI: 10.3389/fendo.2023.1141497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 04/27/2023] [Indexed: 06/10/2023] Open
Abstract
Introduction We developed a novel rice-based medical food for diabetes (MFDM) powder formula, using locally available ingredients in Thailand, which can potentially improve patient access to diabetes-specific formula (DSF) by reducing cost and improving availability. Purpose The goals of our studies were to 1) measure the glycemic index (GI) and glycemic load (GL) of the MFDM powder formula in healthy individuals, and 2) assess postprandial glucose, insulin, satiety, hunger, and gastrointestinal (GI) hormone responses in adults with prediabetes or early type 2 diabetes after consuming MFDM in comparison with a commercially available standard formula (SF) and a DSF. Methods In Study 1, glycemic responses were assessed using the area under the curve (AUC), which was used to calculate GI and GL. Study 2 was a double-blinded multi-arm randomized crossover trial enrolling participants with either prediabetes or type 2 diabetes of ≤6 years. At each study visit, participants consumed either MFDM, SF, or DSF which contained 25 g of carbohydrates. Hunger and satiety were assessed using a visual analog scale (VAS). Glucose, insulin, and GI hormones were assessed using AUC. Results All participants tolerated the MFDM well with no adverse events. In Study 1, the measured GI was 39 ± 6 (low GI) and GL was 11 ± 2 (medium GL). In Study 2, glucose and insulin responses were significantly lower after MFDM compared with SF (p-value<0.01 for both), however, those responses were similar between MFDM and DSF. MFDM suppressed hunger, promoted satiety, stimulated active GLP-1, GIP, and PYY, and suppressed active ghrelin although these changes were similar to SF and DSF. Conclusions MFDM had a low GI and a low-to-medium GL. In people with prediabetes or early type 2 diabetes, MFDM elicited reduced glucose and insulin responses when compared with SF. Rice-based MFDM may be an option for patients who are at risk for postprandial hyperglycemia. Clinical Trial Registration https://www.thaiclinicaltrials.org/show/TCTR20210731001, identifier TCTR20210731001; https://www.thaiclinicaltrials.org/show/TCTR20210730007, identifier TCTR20210730007.
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Affiliation(s)
- Supat Chaiyakul
- Department of Nutrition, Faculty of Public Health, Mahidol University, Bangkok, Thailand
| | - Narong Ketkham
- Department of Medicine, Faculty of Medicine Siriraj Hospital, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Chartchai Chaichana
- Department of Medicine, Faculty of Medicine Siriraj Hospital, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Nanta Khumkhana
- Department of Medicine, Faculty of Medicine Siriraj Hospital, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Wanjan Deekum
- Department of Medicine, Faculty of Medicine Siriraj Hospital, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Pakwuan Wongshaya
- Department of Medicine, Faculty of Medicine Siriraj Hospital, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Thaniya Suwanmalai
- Department of Medicine, Faculty of Medicine Siriraj Hospital, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Carol Hutchinson
- Department of Nutrition, Faculty of Public Health, Mahidol University, Bangkok, Thailand
| | - Pornpoj Pramyothin
- Department of Medicine, Faculty of Medicine Siriraj Hospital, Siriraj Hospital, Mahidol University, Bangkok, Thailand
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14
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Oliveira BF, Chang CR, Oetsch K, Falkenhain K, Crampton K, Stork M, Hoonjan M, Elliott T, Francois ME, Little JP. Impact of a low-carbohydrate versus low-fat breakfast on blood glucose control in type 2 diabetes: a randomized trial. Am J Clin Nutr 2023:S0002-9165(23)48890-9. [PMID: 37257563 DOI: 10.1016/j.ajcnut.2023.04.032] [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: 01/19/2023] [Revised: 04/20/2023] [Accepted: 04/27/2023] [Indexed: 06/02/2023] Open
Abstract
BACKGROUND In type 2 diabetes (T2D), consuming carbohydrates results in a rapid and large increase in blood glucose, particularly in the morning when glucose intolerance is highest. OBJECTIVE We investigated if a low-carbohydrate (LC) breakfast (∼465kcal: 25g protein, 8g carbohydrates, 37g fat) could improve glucose control in people with type 2 diabetes when compared to a low-fat control (CTL) breakfast (∼450kcal:20g protein, 56g carbohydrates, 15g fat). METHODS Participants with T2D (N=121, 53% female, mean age 64 years) completed a remote 3-month parallel-group randomized controlled trial comparing a LC versus standard low-fat guideline CTL breakfast. Change in hemoglobin A1c (HbA1c) was the pre-specified primary outcome. Continuous glucose monitoring, self-reported anthropometrics and dietary information were collected for an intention-to-treat analysis. RESULTS HbA1c was reduced (-0.3%, 95% CI: -0.4% to -0.1%) after 12 weeks of a LC breakfast, but the between group difference in HbA1c was of borderline statistical significance (-0.2, 95% CI: -0.4 to 0.0; P=0.06). Self-reported total daily energy (-242 kcal, 95% CI -460 to -24 kcal; P=0.03) and carbohydrate (-73g, 95% CI: -101 to -44 g; P<0.01) intake were lower in the LC group but the significance of this difference is unclear. Mean and maximum glucose, area under the curve, glycemic variability, standard deviation, and time above range were all significantly lower, and time in range was significantly higher, in the LC group compared to CTL (all P<0.05). CONCLUSIONS Advice and guidance to consume a LC breakfast appears to be a simple dietary strategy to reduce overall energy and carbohydrate intake and improve several CGM variables when compared to a CTL breakfast in persons living with T2D. TRIAL REGISTRATION https://clinicaltrials.gov/ct2/show/NCT04550468.
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Affiliation(s)
- Barbara F Oliveira
- School of Health and Exercise Sciences, University of British Columbia, Kelowna, BC, Canada (BFO, KF, KC, MS, JPL)
| | - Courtney R Chang
- School of Medical, Indigenous and Health and Sciences, University of Wollongong, Wollongong, NSW, Australia (CRC, KO, MEF); Illawarra Health and Medical Research Institute, Wollongong, NSW, Australia (CRC, KO, MEF)
| | - Kate Oetsch
- School of Medical, Indigenous and Health and Sciences, University of Wollongong, Wollongong, NSW, Australia (CRC, KO, MEF); Illawarra Health and Medical Research Institute, Wollongong, NSW, Australia (CRC, KO, MEF)
| | - Kaja Falkenhain
- School of Health and Exercise Sciences, University of British Columbia, Kelowna, BC, Canada (BFO, KF, KC, MS, JPL)
| | - Kara Crampton
- School of Health and Exercise Sciences, University of British Columbia, Kelowna, BC, Canada (BFO, KF, KC, MS, JPL)
| | - Matthew Stork
- School of Health and Exercise Sciences, University of British Columbia, Kelowna, BC, Canada (BFO, KF, KC, MS, JPL)
| | | | - Thomas Elliott
- Division of Endocrinology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada (TE)
| | - Monique E Francois
- School of Medical, Indigenous and Health and Sciences, University of Wollongong, Wollongong, NSW, Australia (CRC, KO, MEF); Illawarra Health and Medical Research Institute, Wollongong, NSW, Australia (CRC, KO, MEF)
| | - Jonathan P Little
- School of Health and Exercise Sciences, University of British Columbia, Kelowna, BC, Canada (BFO, KF, KC, MS, JPL).
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15
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Dega V, Barbhai MD. Exploring the underutilized novel foods and starches for formulation of low glycemic therapeutic foods: a review. Front Nutr 2023; 10:1162462. [PMID: 37153914 PMCID: PMC10160467 DOI: 10.3389/fnut.2023.1162462] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 03/27/2023] [Indexed: 05/10/2023] Open
Abstract
Rising incidences of life-style disorders like obesity, diabetes and cardiovascular diseases are a matter of concern coupled with escalated consumption of highly refined and high energy foods with low nutrient density. Food choices of consumers have witnessed significant changes globally with rising preference to highly processed palatable foods. Thus, it calls food scientists, researchers and nutritionists' attention towards developing and promoting pleasant-tasting yet healthy foods with added nutritional benefits. This review highlights selected underutilized and novel ingredients from different food sources and their by-products that are gaining popularity because of their nutrient density, that can be employed to improve the nutritional quality of conventionally available empty-calorie foods. It also emphasizes on the therapeutic benefits of foods developed from these understudied grains, nuts, processing by-products of grains, fruits- and vegetable-byproducts and nutraceutical starches. This review aims to draw attention of food scientists and industrialists towards popularizing the utilization of these unconventional, yet nutrient rich foods sources in improving the nutritional profile of the conventional foods lacking in nutrient density.
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16
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Alonso-Bastida A, Adam-Medina M, Salazar-Piña DA, Escobar-Jiménez RF, Parra-Cabrera MS, Cervantes-Bobadilla M. Impact on Glycemic Variation Caused by a Change in the Dietary Intake Sequence. Foods 2023; 12:foods12051055. [PMID: 36900572 PMCID: PMC10000994 DOI: 10.3390/foods12051055] [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: 01/30/2023] [Revised: 02/21/2023] [Accepted: 02/24/2023] [Indexed: 03/06/2023] Open
Abstract
This work presents an analysis of the effect on glycemic variation caused by modifying the macronutrient intake sequence in a person without a diagnosis of diabetes. In this work, three types of nutritional studies were developed: (1) glucose variation under conditions of daily intake (food mixture); (2) glucose variation under conditions of daily intake modifying the macronutrient intake sequence; (3) glucose variation after a modification in the diet and macronutrient intake sequence. The focus of this research is to obtain preliminary results on the effectiveness of a nutritional intervention based on the modification of the sequence of macronutrient intake in a healthy person during 14-day periods. The results obtained corroborate the positive effect on the glucose of consuming vegetables, fiber, or proteins before carbohydrates, decreasing the peaks in the postprandial glucose curves (vegetables: 113-117 mg/dL; proteins: 107-112 mg/dL; carbohydrates: 115-125 mg/dL) and reducing the average levels of blood glucose concentrations (vegetables: 87-95 mg/dL; proteins: 82-99 mg/dL; carbohydrates: 90-98 mg/dL). The present work demonstrates the preliminary potential of the sequence in the macronutrient intake for the generation of alternatives of prevention and solution of chronic degenerative diseases, improving the management of glucose in the organism and permeating in the reduction of weight and the state of health of the individuals.
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Affiliation(s)
- Alexis Alonso-Bastida
- TecNM/CENIDET, Electronic Engineering Department, Interior Internado Palmira S/N, Palmira, Cuernavaca 62490, Mexico
| | - Manuel Adam-Medina
- TecNM/CENIDET, Electronic Engineering Department, Interior Internado Palmira S/N, Palmira, Cuernavaca 62490, Mexico
- Correspondence: (M.A.-M.); (D.-A.S.-P.)
| | | | | | | | - Marisol Cervantes-Bobadilla
- Center of Research in Engineering and Applied Sciences (CIICAp-IICBA)/UAEM, Av. Universidad 1001, Chamilpa, Cuernavaca 62209, Mexico
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17
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Rasaei N, Fallah M, Gholami F, Karimi M, Noori S, Bahrampour N, Clark CCT, Mirzaei K. The association between glycemic index and glycemic load and quality of life among overweight and obese women: a cross-sectional study. BMC Nutr 2023; 9:30. [PMID: 36782338 PMCID: PMC9926726 DOI: 10.1186/s40795-022-00668-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 12/30/2022] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND The association between different dietary approaches and quality of life (QoL) has been well-demonstrated in previous research. However, the relationship between glycemic index (GI) and glycemic load (GL) with different dimensions of QoL has not been established. Therefore, we aimed to investigate the relationship between GI and GL with QoL in overweight and obese women. METHODS Two hundred seventy-six overweight and obese women (body mass index (BMI) ≥ 30 kg/m2), aged 18-64 years old, were included in this cross-sectional study. The amount of dietary intake and GI and GL indexes were established using a valid and reliable Food Frequency Questionnaire (FFQ) containing 147 items. Body composition (using bioimpedance analysis), anthropometrics, and physical activity were assessed. Insulin resistance (HOMA-IR) and hs-CRP were also measured, whilst QoL was measured using the SF-36 (short-form-36), self-administered, questionnaire. RESULT Analyses were performed using multivariable linear regression, considering a wide range of confounding variables, such as age, physical activity, BMI, education, job, smoking, and marriage. We found a significant negative association between glycemic load and quality of life (β = -0.07, 95%CI = -0.13_ -0.01, p = 0.01). No significant associations were observed between glycemic index and quality of life (β = -0.03, 95%CI = -0.81_ 0.75, p = 0.93). CONCLUSION We observed a significant negative association between QoL and GL, but not GI, among overweight and obese women in Iran. Our results need to be confirmed with further well-designed and adequately powered studies that control for clinical confounders.
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Affiliation(s)
- Niloufar Rasaei
- grid.411705.60000 0001 0166 0922Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences(TUMS), P.O. Box, 14155-6117 Tehran, Iran
| | - Melika Fallah
- grid.411705.60000 0001 0166 0922Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences(TUMS), P.O. Box, 14155-6117 Tehran, Iran
| | - Fatemeh Gholami
- grid.411705.60000 0001 0166 0922Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences(TUMS), P.O. Box, 14155-6117 Tehran, Iran
| | - Mehdi Karimi
- grid.411705.60000 0001 0166 0922Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences(TUMS), P.O. Box, 14155-6117 Tehran, Iran
| | - Sahar Noori
- grid.472472.00000 0004 1756 1816Department of Nutrition, Science and Research Branch, and Islamic Azad University, Tehran, Iran
| | - Niki Bahrampour
- grid.472472.00000 0004 1756 1816Department of Nutrition, Science and Research Branch, and Islamic Azad University, Tehran, Iran
| | - Cain C. T. Clark
- grid.8096.70000000106754565Centre for Intelligent Healthcare, Coventry University, Coventry, CV1 5FB UK
| | - Khadijeh Mirzaei
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences(TUMS), P.O. Box, 14155-6117, Tehran, Iran. .,Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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18
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Farhadnejad H, Sadat S, Jahromi MK, Teymoori F, Tehrani AN, Mokhtari E, Teymouri H, Mirmiran P. The association of dietary glycemic index and glycemic load with the risk of insomnia in the adult population. BMC Nutr 2023; 9:28. [PMID: 36750913 PMCID: PMC9903533 DOI: 10.1186/s40795-023-00689-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 02/02/2023] [Indexed: 02/09/2023] Open
Abstract
BACKGROUND A dietary pattern with a high glycemic index (GI) and glycemic load (GL) can be a precursor to sleep disorders that link to many chronic diseases. We aimed to assess the association of dietary GI and GL with the risk of insomnia in Iranian adults. METHODS A total of 111 newly diagnosed insomnia cases and 333 controls aged 18-60 years were included in this case-control study. The participants' dietary intakes were collected using a valid and reliable food frequency questionnaire. The diagnosis of insomnia in subjects was performed by a neurologist using the Insomnia Severity Index (ISI) questionnaire. Multivariable logistic regression models, adjusted for the potential confounders, were used to determine the risk of insomnia according to tertiles of dietary glycemic indices. RESULTS The mean (SD) age and BMI of the study population (78.6% female) were 31.8 (10.0) years and 24.70 (3.62) kg/m2, respectively. The median (IQR) of dietary GI and GL in subjects was 62.7 (57.0-68.6) and 213.5(167.4-268.5), respectively. Based on the multivariable-adjusted model, after controlling for age, sex, physical activity, obesity, smoking, socioeconomic score, general health questionnaire (GHQ) score, and dietary energy intake, the odds of insomnia were increased across tertiles of dietary GL[(OR:2.72,95%CI:1.10-6.70),(Ptrend = 0.017)], however, no significant association was observed between high GI diet and insomnia risk [(OR:1.38,95%CI:0.77-2.47),(Ptrend = 0.298)]. CONCLUSIONS Our results revealed that greater adherence to dietary pattern with high GL could be increased the odds of insomnia in Iranian adults.
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Affiliation(s)
- Hossein Farhadnejad
- grid.411600.2Student Research Committee, Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Samaneh Sadat
- grid.411036.10000 0001 1498 685XResearch Committee and Department of Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mitra Kazemi Jahromi
- grid.412237.10000 0004 0385 452XEndocrinology and Metabolism Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Farshad Teymoori
- grid.411600.2Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Asal Neshatbini Tehrani
- grid.411230.50000 0000 9296 6873Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran ,grid.411230.50000 0000 9296 6873Department of Nutrition, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ebrahim Mokhtari
- grid.411600.2Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Teymouri
- grid.411705.60000 0001 0166 0922Deputy for Health Affairs, Psychosocial Unit, Tehran University of Medical Sciences, Tehran, Iran
| | - Parvin Mirmiran
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Yadav N, Kumar Mandal A. Interference of hemoglobin variants in HbA 1c quantification. Clin Chim Acta 2023; 539:55-65. [PMID: 36476843 DOI: 10.1016/j.cca.2022.11.031] [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: 08/12/2022] [Revised: 11/26/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022]
Abstract
Fasting blood glucose and glycated hemoglobin (HbA1c) are routine biomarkers to screen and monitor diabetes mellitus. HbA1c results from glycation at the N-terminus of the β globin chain of tetrameric human hemoglobin. Fasting blood glucose level varies with the nature and amount of food intake, physical exercise, etc., and, accordingly, is a short-term measure of glucose control. In contrast, HbA1c provides an average measure of glucose control for the long-term (8-12 weeks). Unfortunately, genetic variants of hemoglobin may interfere with HbA1c quantification using ion exchange chromatography, capillary electrophoresis, immunoassay and boronate affinity chromatography. Mass spectrometry, however, measures total glycation of hemoglobin across both α and β globin chains and correlates well with the ion exchange based method. Additionally, mass spectrometry based quantification is not impacted by the presence of genetic variants of hemoglobin and thus might be a better analytical choice for diabetes mellitus.
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Affiliation(s)
- Neha Yadav
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal 741246, India
| | - Amit Kumar Mandal
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal 741246, India.
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Optimization and Molecular Mechanism of Novel α-Glucosidase Inhibitory Peptides Derived from Camellia Seed Cake through Enzymatic Hydrolysis. Foods 2023; 12:foods12020393. [PMID: 36673484 PMCID: PMC9857891 DOI: 10.3390/foods12020393] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/03/2023] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
In recent years, food-derived hypoglycemic peptides have received a lot of attention in the study of active peptides, but their anti-diabetic mechanism of action is not yet clear. In this study, camellia seed cake protein (CSCP) was used to prepare active peptides with α-glucosidase inhibition. The optimization of the preparation of camellia seed cake protein hydrolyzed peptides (CSCPH) was conducted via response surface methodology (RSM) using a protamex with α-glucosidase inhibition as an indicator. The optimal hydrolysis conditions were pH 7.11, 4300 U/g enzyme concentration, 50 °C hydrolysis temperature, and 3.95 h hydrolysis time. Under these conditions, the α-glucosidase inhibition rate of CSCPH was 58.70% (IC50 8.442 ± 0.33 mg/mL). The peptides with high α-glucosidase inhibitory activity were isolated from CSCPH by ultrafiltration and Sephadex G25. Leu-Leu-Val-Leu-Tyr-Tyr-Glu-Tyr (LLVLYYEY) and Leu-Leu-Leu-Leu-Pro-Ser-Tyr-Ser-Glu-Phe (LLLLPSYSEF) were identified and synthesized for the first time by Liquid chromatography electrospray ionisation tandem mass spectrometry (LC-ESI-MS/MS) analysis and virtual screening with IC50 values of 0.33 and 1.11 mM, respectively. Lineweaver-Burk analysis and molecular docking demonstrated that LLVLYYEY was a non-competitive inhibitor of α-glucosidase, whereas LLLLPSYSEF inhibited α-glucosidase, which displayed a mixed inhibition mechanism. The study suggests the possibility of using peptides from Camellia seed cake as hypoglycaemic compounds for the prevention and treatment of diabetes.
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Konjac Glucomannan: An Emerging Specialty Medical Food to Aid in the Treatment of Type 2 Diabetes Mellitus. Foods 2023; 12:foods12020363. [PMID: 36673456 PMCID: PMC9858196 DOI: 10.3390/foods12020363] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 01/14/2023] Open
Abstract
There are many factors causing T2DM; thus, it is difficult to prevent and cure it with conventional treatment. In order to realize the continuous intervention of T2DM, the treatment strategy of combining diet therapy and traditional medication came into being. As a natural product with the concept of being healthy, konjac flour and its derivatives are popular with the public. Its main component, Konjac glucomannan (KGM), can not only be applied as a food additive, which greatly improves the taste and flavor of food and extends the shelf life of food but also occupies an important role in T2DM. KGM can extend gastric emptying time, increase satiety, and promote liver glycogen synthesis, and also has the potential to improve intestinal flora and the metabolic system through a variety of molecular pathways in order to positively regulate oxidative stress and immune inflammation, and protect the liver and kidneys. In order to establish the theoretical justification for the adjunctive treatment of T2DM, we have outlined the physicochemical features of KGM in this article, emphasizing the advantages of KGM as a meal for special medical purposes of T2DM.
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Shabunin AV, Bedin VV, Tavobilov MM, Karpov AA, Lantsynova AV, Abramov KA. [Spleen-preserving total pancreatectomy for low-grade tumors]. Khirurgiia (Mosk) 2023:5-12. [PMID: 36748865 DOI: 10.17116/hirurgia20230215] [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] [Indexed: 06/18/2023]
Abstract
OBJECTIVE To justify organ-preserving variants of total pancreatectomy. MATERIAL AND METHODS We retrospectively analyzed the results of classic and modified total pancreatectomy between September 2010 and March 2021. Implementing pylorus-sparing total pancreatectomy with preservation of stomach, spleen, gastric and splenic vessels, we thoroughly analyzed exocrine/endocrine disorders after total pancreatectomy and changes in immune status after splenectomy. Serum C-reactive protein and ferritin were assessed in 1, 3, 5, 7, 14 and 30 days after surgery in both groups. We also estimated daily glycemic profile after total pancreatectomy in classical and organ-preserving modifications. RESULTS We performed 37 total pancreatectomies including 12 pylorus-preserving total pancreatectomies with preservation of stomach, spleen, gastric and splenic vessels. General and specific postoperative complication rate was significantly lower after modified surgery compared to classic total pancreatectomy with gastric resection and splenectomy. CONCLUSION Modified total pancreatectomy is preferable for low-grade pancreatic tumors.
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Affiliation(s)
- A V Shabunin
- Botkin Moscow City Clinical Hospital, Moscow, Russia
- Russian Medical Academy of Continuous Professional Education, Moscow, Russia
| | - V V Bedin
- Botkin Moscow City Clinical Hospital, Moscow, Russia
- Russian Medical Academy of Continuous Professional Education, Moscow, Russia
| | - M M Tavobilov
- Botkin Moscow City Clinical Hospital, Moscow, Russia
- Russian Medical Academy of Continuous Professional Education, Moscow, Russia
| | - A A Karpov
- Botkin Moscow City Clinical Hospital, Moscow, Russia
| | | | - K A Abramov
- Botkin Moscow City Clinical Hospital, Moscow, Russia
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Shabunin AV, Bedin VV, Tavobilov MM, Karpov AA, Lantsynova AV, Abramov KA. [Stomach and spleen preserving total pancreatectomy]. Khirurgiia (Mosk) 2023:5-12. [PMID: 37186645 DOI: 10.17116/hirurgia20230515] [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: 05/17/2023]
Abstract
INTRODUCTION Pancreatic surgery expands the indications and the use of total pancreatectomy. Considering a rather high rate of postoperative complications, the search for the ways to improve its outcomes is extremely relevant. The purpose of this study is justification and implementation of organ-preserving variants of total pancreatectomy. MATERIAL AND METHODS Retrospective analysis of treatment results after classic and modified total pancreatectomy in the surgical clinic of Botkin Hospital was performed from September 2010 to March 2021. During the development and implementation of pylorus-preserving total pancreatectomy with preservation of the stomach, spleen, gastric and splenic vessels, we thoroughly analyzed aspects of exocrine/endocrine disorders and changes of the immune status after performing the modified technique. RESULTS We performed 37 total pancreatectomies, including 12 pylorus-preserving total pancreatectomies with preservation of the stomach, spleen, gastric, and splenic vessels. General and specific postoperative complication rate in patients after the modified operation was significantly lower compared to the results of classic total pancreatectomy with gastric resection and splenectomy. CONCLUSION Modified total pancreatectomy is a method of choice for pancreatic tumors of low malignant potential.
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Affiliation(s)
- A V Shabunin
- Botkin Moscow City Clinical Hospital, Moscow, Russia
- Russian Medical Academy of Continuous Professional Education, Moscow, Russia
| | - V V Bedin
- Botkin Moscow City Clinical Hospital, Moscow, Russia
- Russian Medical Academy of Continuous Professional Education, Moscow, Russia
| | - M M Tavobilov
- Botkin Moscow City Clinical Hospital, Moscow, Russia
- Russian Medical Academy of Continuous Professional Education, Moscow, Russia
| | - A A Karpov
- Botkin Moscow City Clinical Hospital, Moscow, Russia
| | | | - K A Abramov
- Botkin Moscow City Clinical Hospital, Moscow, Russia
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Muacevic A, Adler JR, Sobki SH, Al-Saeed AH, Al Dawish M. Comparison of Point-of-Care and Laboratory Glycated Hemoglobin A1c and Its Relationship to Time-in-Range and Glucose Variability: A Real-World Study. Cureus 2023; 15:e33416. [PMID: 36643084 PMCID: PMC9833273 DOI: 10.7759/cureus.33416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2023] [Indexed: 01/06/2023] Open
Abstract
Introduction The main objective of the current study was to perform a comparison of point-of-care testing for hemoglobin A1c (POCT-HbA1c) versus the standard laboratory method (Lab HbA1c) and their relationship to time-in-range (TIR) and glucose variability (GV) among patients with diabetes mellitus (DM) presented to the outpatient diabetes clinics. Methods This single-center cross-sectional study was carried out on diabetic patients (aged ≥14 years of both genders) who undergo routine follow-up at our institution and whose physicians ordered HbA1c analysis for routine care. The included patients were those using the intermittently scanned continuous glucose monitoring (isCGM) Abbott's FreeStyle Libre system for at least three months and regular CGM users with at least 70% use. Results We included 97 diabetic patients (41 female and 56 male), with a median age of 25 years (Interquartile range= 18) and a mean DM duration of 10.33±5.48 years. The mean values of Lab-HbA1c and POCT HbA1c were 8.82%±0.85% and 8.53%±0.89%, respectively. The TIR, time below range, and time above range were 33.47±14.38 minutes (47.78%±14.32%), 5.44±2.58 minutes (8.41%±4.42%), and 28.8±8.27 minutes (43.81%±13.22%), respectively. According to the Bland-Altman plot analysis, the POCT-HbA1c values are consistent with the standard Lab-HbA1c values (SD of bias= 0.55, and 95% CI= -0.78 to 1.4). The univariate linear regression analysis showed a statistically significant relationship between laboratory HbA1c and POCT HbA1c (R2= 0.637, p <0.001), TIR (R2= 0.406, p <0.001), and GV (R2= 0.048, p= 0.032). After adjusting for age, gender, disease duration, diabetes type, and percentage of sensor data in a multivariable linear regression model, the linear associations remained significant (all p < 0.05). Conclusion The current findings show that TIR and GV can be used as endpoints and valuable parameters for the therapy of DM.
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Tan LL, Duan WQ, Chen MX, Mei Y, Qi XY, Zhang Y. Naturally cultured high resistant starch rice improved postprandial glucose levels in patients with type 2 diabetes: A randomized, double-blinded, controlled trial. Front Nutr 2022; 9:1019868. [PMID: 36643977 PMCID: PMC9833119 DOI: 10.3389/fnut.2022.1019868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 12/06/2022] [Indexed: 12/24/2022] Open
Abstract
Objective To assess the effect of a novel naturally cultured rice with high resistant starch (RS) on postprandial glycemia in patients with type 2 diabetes compared to ordinary rice. Design This study is a randomized, double-blinded controlled trial. Methods Patients with type 2 diabetes were recruited, and postprandial glucose levels were measured at 5-time points after the ingestion of one of two types of cooked rice in random order. Paired t-tests were used to compare postprandial blood glucose changes and increment areas under the blood glucose curve between high-RS rice and ordinary rice. Results The increments of the postprandial blood glucose levels for high-RS rice were significantly lower than that for ordinary rice, i.e., 2.80 ± 1.38 mmol/L vs. 3.04 ± 1.50 mmol/L (P = 0.043) and 3.94 ± 2.25 mmol/L vs. 4.25 ± 2.29 mmol/L (P = 0.036) at 30 min and 60 min, respectively. The incremental areas under the blood glucose curve for high-RS rice were also significantly lower than that for ordinary rice, i.e., 42.04 ± 20.65 [mmol/(L·min)] vs. 45.53 ± 22.45 [mmol/(L·min)] (P = 0.043), 143.54 ±69.63 [mmol/(L·min)] vs. 155.15 ± 73.53 [mmol/(L·min)] (P = 0.026), and 354.61 ± 191.96 [mmol/(L·min)] vs. 379.78 ± 195.30 [mmol/(L·min)] (P = 0.042) at 30, 60, and 120 min, respectively. Repeated-measures ANOVA showed that postprandial glucose levels were not affected by the test order. Conclusion The novel high-RS rice as a staple food when substituting for widely consumed ordinary rice may provide potential health benefits by lowering blood glucose in patients with type 2 diabetes.
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Affiliation(s)
- Ling-li Tan
- School of Public Health and Health Management, Chongqing Medical University, Chongqing, China
| | - Wei-qian Duan
- School of Public Health and Health Management, Chongqing Medical University, Chongqing, China
| | - Meng-xue Chen
- Department of Health Management, The Second Hospital Affiliated to Chongqing Medical University, Chongqing, China
| | - Ying Mei
- Department of Health Management, The Second Hospital Affiliated to Chongqing Medical University, Chongqing, China
| | - Xiao-ya Qi
- Department of Health Management, The Second Hospital Affiliated to Chongqing Medical University, Chongqing, China
| | - Yong Zhang
- School of Public Health and Health Management, Chongqing Medical University, Chongqing, China,Department of Health Management, The Second Hospital Affiliated to Chongqing Medical University, Chongqing, China,*Correspondence: Yong Zhang ✉
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Kordowski A, Tetzlaff-Lelleck VV, Speckmann B, Loh G, Künstner A, Schulz F, Schröder T, Smollich M, Sina C, tom Dieck H. A nutritional supplement based on a synbiotic combination of Bacillus subtilis DSM 32315 and L-alanyl-L-glutamine improves glucose metabolism in healthy prediabetic subjects - A real-life post-marketing study. Front Nutr 2022; 9:1001419. [PMID: 36570155 PMCID: PMC9773202 DOI: 10.3389/fnut.2022.1001419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 11/15/2022] [Indexed: 12/13/2022] Open
Abstract
Introduction Impaired glucose homeostasis is a significant risk factor for cardiometabolic diseases, whereas the efficacy of available standard therapies is limited, mainly because of poor adherence. This post-marketing study assessed the glucose-lowering potential of a synbiotic-based formulation. Methods One hundred ninety-two participants were enrolled in a digital nutrition program with continuous glucose monitoring (CGM) and received a study product comprising Bacillus subtilis DSM 32315 and L-alanyl-L-glutamine. Participants underwent a first sensor phase without supplementation, followed by a 14-day supplementation phase without sensor, and completed by a second sensor phase while continuing supplementation. Fasting glucose levels were determined before and after supplementation by CGM. In addition, the postprandial glycemic response to an oral glucose challenge, body weight, HbA1c concentrations, and BMI was analyzed. Subgroup analyses of subjects with elevated glucose and HbA1c levels vs. normoglycemic subjects were performed. Results Supplementation with the study product resulted in significant improvements in glucose parameters (delta values: fasting glucose -2,13% ± 8.86; iAUC0-120 -4.91% ± 78.87; HbA1c: -1.20% ± 4.72) accompanied by a significant weight reduction (-1.07 kg ± 2.30) in the study population. Subgroup analyses revealed that the improvements were mainly attributed to a prediabetic subgroup with elevated fasting glucose and HbA1c values before supplementation (delta values: fasting glucose -6.10% 4± 7.89; iAUC0-120 -6.28% ± 115.85; HbA1c -3.31% ± 4.36; weight: -1.47 kg ± 2.82). Conclusion This study indicates that the synbiotic composition is an effective and convenient approach to counteract hyperglycemia. Further placebo-controlled studies are warranted to test its efficacy in the treatment of cardiometabolic diseases.
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Affiliation(s)
- Anna Kordowski
- Institute of Nutritional Medicine, University Hospital Schleswig-Holstein, University of Lübeck, Lübeck, Germany,*Correspondence: Anna Kordowski,
| | | | | | - Gunnar Loh
- Evonik Operations GmbH, Hanau-Wolfgang, Germany
| | - Axel Künstner
- Perfood GmbH, Research and Development, Lübeck, Germany
| | | | - Torsten Schröder
- Institute of Nutritional Medicine, University Hospital Schleswig-Holstein, University of Lübeck, Lübeck, Germany,Perfood GmbH, Research and Development, Lübeck, Germany
| | - Martin Smollich
- Institute of Nutritional Medicine, University Hospital Schleswig-Holstein, University of Lübeck, Lübeck, Germany
| | - Christian Sina
- Institute of Nutritional Medicine, University Hospital Schleswig-Holstein, University of Lübeck, Lübeck, Germany
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Akerele GP, Adedayo BC, Oboh G, Ademosun AO, Oyeleye SI. Glycemic indices and effect of bitter leaf (Vernonia amygdalina) flavored non-alcoholic wheat beer (NAWB) on key carbohydrate metabolizing enzymes in high fat diet fed (HFD)/STZ-induced diabetic Wistar rats. J Food Biochem 2022; 46:e14511. [PMID: 36370433 DOI: 10.1111/jfbc.14511] [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: 08/31/2022] [Revised: 10/20/2022] [Accepted: 10/25/2022] [Indexed: 11/13/2022]
Abstract
In a bid to make the use of functional food easier in the management and prevention of diseases, product development and fortification from/with functional foods have become the recent focus of research. This study, therefore, sought to exploit the recent trend in the brewing industry on the production of non-alcoholic beers by investigating the possibility of having a non-alcoholic beer flavored with bitter leaf, a known plant widely reported to have a strong hypoglycemic effect, as against the traditional use of hops, and the effect of the produced beer on the glycemic indices and various diabetic biochemical parameters that serve as biomarkers for type-2 diabetes (T2D). The glycemic indices, as well as the inhibitory potentials of bitter leaf-flavored Non-alcoholic wheat beer (NAWB) in ratios of 100%HP, 100%BL, 75:25BL, 50:50BL, and 25:75BL, on enzymes linked to a high-fat diet/streptozocin (HFD/STZ)-induced T2D albino Wistar rats were investigated. There were no significant difference (p > .05) between the starch (1.72-1.77 mg/100 mL), amylose (0.22-0.24 mg/100 mL), and amylopectin (1.49-1.53 mg/100 mL) contents of the various samples. The Glycemic Index (GI) of the samples ranged from 36 to 73 with 75:25Bl and 50:50BL have the lowest (36) values. The samples reduced blood glucose levels and inhibited pancreatic α-amylase, lipase, and intestinal α-glucosidase activity. The inhibitory potentials of these beer samples on α-amylase and α-glucosidase as well as their ability to reduce blood glucose levels in diabetic rats thus making the bitter leaf flavored NAWB a suitable healthy beverage for better glycemic control in diabetics. PRACTICAL APPLICATIONS: This study revealed the potential of producing non-alcoholic wheat beer flavored with bitter leaves as a possible substitute for hops. The potential inherent in bitter leaf in the management of type 2 diabetes can thus be made available through a far-reaching beverage medium such as non-alcoholic beer to help in the treatment/management of T2D. The results of this research could be an eye-opener to the possible utilization of bitter leaf and by extension other plants that have been reported in the management of T2D. The use of the bitter leaf as a substitute for hops in the production of non-alcoholic beer in the brewing industry could help in a health-oriented campaign for safe drinks that could be helpful in the control of blood glucose levels of diabetic patients.
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Affiliation(s)
- Gbenga P Akerele
- Functional Foods and Nutraceutical Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
| | - Bukola C Adedayo
- Functional Foods and Nutraceutical Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
| | - Ganiyu Oboh
- Functional Foods and Nutraceutical Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
| | - Ayokunle O Ademosun
- Functional Foods and Nutraceutical Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
| | - Sunday I Oyeleye
- Functional Foods and Nutraceutical Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
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Murillo S, Mallol A, Adot A, Juárez F, Coll A, Gastaldo I, Roura E. Culinary strategies to manage glycemic response in people with type 2 diabetes: A narrative review. Front Nutr 2022; 9:1025993. [PMID: 36438742 PMCID: PMC9684673 DOI: 10.3389/fnut.2022.1025993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 10/10/2022] [Indexed: 12/02/2022] Open
Abstract
Diet plays a critical role in the management of many chronic diseases. It is well known that individuals with type 2 diabetes (T2D) need to pay close attention to foods rich in carbohydrates to better manage their blood sugar. Usually, individuals are told to increase their dietary fiber intake which is associated with better glycemic control and limit their overall carbohydrate consumption. However, there are many other cooking strategies available to reduce the glycemic response to meals rich in carbohydrates and with a high glycemic index, such as adding fats, proteins, or vinegar, modifying the cooking or preparation processes, and even the selection and storage of foods consumed. The aim of the present narrative review is to summarize some of these existing strategies applied to the cooking process and their ability to modulate glycemic response to meals in individuals with T2D.
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Affiliation(s)
- Serafin Murillo
- Health and Food Habits Department, Fundació Alicia, Sant Fruitós de Bages, Spain
- Endocrinology and Nutrition Department, Universitat de Barcelona, Barcelona, Spain
- Endocrinology and Nutrition Department, Hospital Sant Joan de Déu, Esplugues de Llobregat, Spain
| | - Ariadna Mallol
- Health and Food Habits Department, Fundació Alicia, Sant Fruitós de Bages, Spain
| | - Alba Adot
- Health and Food Habits Department, Fundació Alicia, Sant Fruitós de Bages, Spain
| | - Fabiola Juárez
- Health and Food Habits Department, Fundació Alicia, Sant Fruitós de Bages, Spain
| | - Alba Coll
- Health and Food Habits Department, Fundació Alicia, Sant Fruitós de Bages, Spain
| | - Isabella Gastaldo
- Endocrinology and Nutrition Department, Universitat de Barcelona, Barcelona, Spain
| | - Elena Roura
- Health and Food Habits Department, Fundació Alicia, Sant Fruitós de Bages, Spain
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Effects of α-D-glucans with alternating 1,3/1,6 α-D-glucopyranosyl linkages on postprandial glycemic response in healthy subjects. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2022. [DOI: 10.1016/j.carpta.2022.100256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Short-term effects of sugar-free apricot jam, cocoa powder and dried cranberry cereal bar on glycaemic responses in healthy adults: a randomised clinical trial. J Nutr Sci 2022; 11:e77. [PMID: 36304830 PMCID: PMC9574874 DOI: 10.1017/jns.2022.74] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/02/2022] [Indexed: 12/14/2022] Open
Abstract
High sugar intake has been associated with adverse effects on health, with some types of breakfast being highly linked to overweight and obesity. The aim was to compare the effects of four sugar-free breakfast items, apricot jam with white bread (JWB), white bread (WB), cocoa with fat-free milk (CM), and dried cranberry cereal bar (CB), compared to d-glucose on the glycaemic responses. Using a cross-over design, twelve healthy individuals (25 ± 4 years; BMI 22 ± 2 kg/m2) received isoglucidic test meals (25 g of available carbohydrate) and 25 g glucose reference, in random order. Glycaemic index/load (GI/GL) were calculated, and capillary blood glucose samples were collected at 0–120 min after meal consumption. Subjective appetite was assessed with visual analogue scales. Sugar-free apricot jam and cocoa powder contained traces of available carbohydrates and were consumed along with bread and fat-free milk, respectively. JWB and WB were classified as medium GI, low-to-medium GL; CM as medium GI, low GL; and CB as high GI, low-to-medium GL. Subjective hunger was lower after JWB, fullness was higher after CM and pleasure was higher after CB (P for all < 0⋅05). In conclusion, sugar-free apricot jam with and without WB and cocoa powder with fat-free milk are suitable healthy breakfast options leading to improved glycaemic and subjective appetite responses.
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Lodi KZ, Cappelari MB, Pilatti GC, Fontana RC, Camassola M, Salvador M, Branco CS. Pre-clinical evidence for the therapeutic effect of Pitaya ( Hylocereus lemairei) on diabetic intestinal microenvironment. Nat Prod Res 2022; 37:1735-1741. [PMID: 35945808 DOI: 10.1080/14786419.2022.2110091] [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: 10/15/2022]
Abstract
Intestinal glucose absorption plays a central role in the regulation of glucose plasmatic; however, current clinical management does not target the gut for treating diabetes. This study evaluated the effects of peel and pulp aqueous extract from Hylocereus lemairei on human enterocytes under high glucose concentration. Anti-hyperglycemic and antiobesity activities in vitro were also evaluated. Extracts did not cause cytotoxicity at 1 to 500 μg/mL. Moreover, they were effective in attenuating oxidative stress (DCFH-DA assay) and inflammation (•ON production) caused by high glucose. Intestinal enzymes (α- glucosidase and pancreatic lipase) were inhibited by pulp and peel extracts (>60% and >95%, respectively). Extracts exhibited a redox capacity superior to ascorbic and chlorogenic acids, presenting high phenolic content, mainly anthocyanins. The main compounds for both extracts were chlorogenic acid and naringin, and peel stood both qualitatively and quantitatively. Data suggest red Pitaya has potential as a new medicine for diabetes.
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Affiliation(s)
- Karina Zanella Lodi
- Laboratory of Oxidative Stress and Antioxidants, Biotechnology Institute, University of Caxias do Sul, Caxias do Sul, Brazil
| | | | | | - Roselei Claudete Fontana
- Laboratory of Enzymes and Biomass, Biotechnology Institute, University of Caxias do Sul, Caxias do Sul, Brazil
| | - Marli Camassola
- Laboratory of Enzymes and Biomass, Biotechnology Institute, University of Caxias do Sul, Caxias do Sul, Brazil
| | - Mirian Salvador
- Laboratory of Oxidative Stress and Antioxidants, Biotechnology Institute, University of Caxias do Sul, Caxias do Sul, Brazil
| | - Catia Santos Branco
- Laboratory of Oxidative Stress and Antioxidants, Biotechnology Institute, University of Caxias do Sul, Caxias do Sul, Brazil.,Department of Life Sciences, University of Caxias do Sul, Caxias do Sul, Brazil
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Eliza E, Sumarman S, Yunianto AE, Fadly D. Nutrition Education Regarding the Glycemic Index on the Knowledge of Patients with Diabetes Mellitus. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.9986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Knowledge is one of the keys to diabetes management. Increasing knowledge is an effort to improve their lifestyle to maintain the stability of their blood sugar, one of which is through the media booklet. The booklet is an influential media in nutrition education to improve diabetes mellitus patient knowledge related to the glycemic index.
AIM: This study aims to analyze the effect of nutrition education on the knowledge of DM patients about the glycemic index.
METHODS: It was quantitative research using a quasi-experimental research design, with a pre-test and post-test design with a control group. The total sample consisted of 46 respondents: A treatment group (23 respondents) and a comparison group (23 respondents). Nutrition education was conducted through poster media in the control group and booklet media in the treatment group, given 3 times for 2 weeks in patients with diabetes. The Mann–Whitney test was used to analyze the respondent’s glycemic index characteristics and intake in the treatment and control, while paired t-test was conducted to determine the difference in the respondents’ level of knowledge before and after the intervention.
RESULTS: The dependent t-test showed a significant difference in the average knowledge before and after the nutritional counseling with booklet media in the treatment group, p = 0.024 (α < 0.005).
CONCLUSION: Nutrition education program regarding the glycemic index through booklet media was the potential to increase patients’ nutritional knowledge.
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Zhai J, Zhu Y, Wu Y, Li N, Cao Y, Guo Y, Xu L. Antioxidant Effect of Tyr-Ala Extracted from Zein on INS-1 Cells and Type 2 Diabetes High-Fat-Diet-Induced Mice. Antioxidants (Basel) 2022; 11:antiox11061111. [PMID: 35740008 PMCID: PMC9219942 DOI: 10.3390/antiox11061111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 05/23/2022] [Accepted: 05/29/2022] [Indexed: 11/16/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is associated with an oxidative milieu that often leads to adverse health problems. Bioactive peptides of zein possess outstanding antioxidant activity; however, their effects on hyperglycemia-related oxidative stress remain elusive. In the present study, the dipeptide Tyr-Ala (YA), a functional peptide with typical health benefits, was applied to alleviate oxidative stress in pancreatic islets under hyperglycemic conditions. By detecting viability, antioxidant ability, and insulin secretion in INS-1 cells, YA showed excellent protection of INS-1 cells from H2O2 oxidative stress, erasing reactive oxygen species (ROS) and promoting insulin secretion. Moreover, by Western blotting, we found that YA can regulate the PI3K/Akt signaling pathway associated with glycometabolism. After establishing a T2DM mice model, we treated mice with YA and measured glucose, insulin, hemoglobin A1C (HbA1c), total cholesterol (TC), triglyceride (TG), and malonaldehyde (MDA) levels and activities of superoxide dismutase (SOD) and glutathione (GSH) from blood samples. We observed that YA could reduce the production of glucose, insulin, HbA1c, TC, TG, and MDA, in addition to enhancing the activities of SOD and GSH. YA could also repair the function of the kidneys and pancreas of T2DM mice. Along with the decline in fasting blood glucose, the oxidative stress in islets was alleviated in T2DM mice after YA administration. This may improve the health situation of diabetic patients in the future.
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Affiliation(s)
- Jinghui Zhai
- Key Laboratory for Molecular Enzymology and Engineering, The Ministry of Education, National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China; (J.Z.); (Y.Z.); (N.L.); (Y.C.)
- Department of Pharmacy, First Hospital of Jilin University, Changchun 130021, China
| | - Yuhua Zhu
- Key Laboratory for Molecular Enzymology and Engineering, The Ministry of Education, National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China; (J.Z.); (Y.Z.); (N.L.); (Y.C.)
| | - Yi Wu
- College of Pharmacy, Jilin University, Changchun 130033, China;
| | - Na Li
- Key Laboratory for Molecular Enzymology and Engineering, The Ministry of Education, National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China; (J.Z.); (Y.Z.); (N.L.); (Y.C.)
| | - Yue Cao
- Key Laboratory for Molecular Enzymology and Engineering, The Ministry of Education, National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China; (J.Z.); (Y.Z.); (N.L.); (Y.C.)
| | - Yi Guo
- Key Laboratory for Molecular Enzymology and Engineering, The Ministry of Education, National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China; (J.Z.); (Y.Z.); (N.L.); (Y.C.)
- Correspondence: (Y.G.); (L.X.)
| | - Li Xu
- Key Laboratory for Molecular Enzymology and Engineering, The Ministry of Education, National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China; (J.Z.); (Y.Z.); (N.L.); (Y.C.)
- Correspondence: (Y.G.); (L.X.)
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Personalized Nutrition in the Management of Female Infertility: New Insights on Chronic Low-Grade Inflammation. Nutrients 2022; 14:nu14091918. [PMID: 35565885 PMCID: PMC9105997 DOI: 10.3390/nu14091918] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/19/2022] [Accepted: 04/29/2022] [Indexed: 02/01/2023] Open
Abstract
Increasing evidence on the significance of nutrition in reproduction is emerging from both animal and human studies, suggesting a mutual association between nutrition and female fertility. Different “fertile” dietary patterns have been studied; however, in humans, conflicting results or weak correlations are often reported, probably because of the individual variations in genome, proteome, metabolome, and microbiome and the extent of exposure to different environmental conditions. In this scenario, “precision nutrition”, namely personalized dietary patterns based on deep phenotyping and on metabolomics, microbiome, and nutrigenetics of each case, might be more efficient for infertile patients than applying a generic nutritional approach. In this review, we report on new insights into the nutritional management of infertile patients, discussing the main nutrigenetic, nutrigenomic, and microbiomic aspects that should be investigated to achieve effective personalized nutritional interventions. Specifically, we will focus on the management of low-grade chronic inflammation, which is associated with several infertility-related diseases.
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Postprandial Glucose Response after Consuming Low-Carbohydrate, Low-Calorie Rice Cooked in a Carbohydrate-Reducing Rice Cooker. Foods 2022; 11:foods11071050. [PMID: 35407137 PMCID: PMC8997980 DOI: 10.3390/foods11071050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/31/2022] [Accepted: 04/04/2022] [Indexed: 01/22/2023] Open
Abstract
This study evaluates whether blood glucose response differs upon consuming rice cooked in a carbohydrate (carb)-reducing rice cooker. Rice cooked this way exhibited 19% reduced total carbohydrate (34.0 ± 0.3 vs. 27.6 ± 0.9 g/100 g rice) and 20% reduced total calorie (149.0 ± 1.0 vs. 120.8 ± 3.7 kcal/100 g rice) contents. We measured the blood glucose response (at 0, 15, 30, 45, 60, 90, and 120 min) in 13 healthy participants after consuming 6 different rice types: regular white rice (regular WR, 50 g of available carbohydrate (AC)), low-carb WR with equivalent weight as regular WR (low-carb WR (EW)), low-carb WR with equivalent carb as regular WR (low-carb WR (EC), regular mixed-grain rice (regular MR), low-carb MR (EW) as regular MR, and low-carb MR (EC) as regular MR. All rice samples were prepared in an electric carb-reducing rice cooker. Postprandial blood glucose, sensory, and appetite were assessed after each test meal. The incremental area under the curve of 15 and 30 min after rice consumption was significantly lower in low-carb WR (EW) than that in regular WR. These results suggest possible health benefits of low-carb WR in reducing early postprandial spikes in blood glucose level without significant differences in satiety and satisfaction.
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Papakonstantinou E, Xaidara M, Siopi V, Giannoglou M, Katsaros G, Theodorou G, Maratou E, Poulia KA, Dimitriadis GD, Skandamis PN. Effects of Spaghetti Differing in Soluble Fiber and Protein Content on Glycemic Responses in Humans: A Randomized Clinical Trial in Healthy Subjects. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19053001. [PMID: 35270698 PMCID: PMC8909947 DOI: 10.3390/ijerph19053001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 02/23/2022] [Accepted: 02/25/2022] [Indexed: 02/04/2023]
Abstract
This randomized, single blind, cross-over study investigated the glycemic responses to three spaghetti No 7 types differing in dietary protein and soluble fiber content. Fourteen clinically and metabolically healthy, fasting individuals (25 ± 1 years; ten women; BMI 23 ± 1 kg/m2) received isoglucidic test meals (50 g available carbohydrate) and 50 g glucose reference, in random order. GI was calculated using the FAO/WHO method. Capillary blood glucose and salivary insulin samples were collected at 0, 15, 30, 45, 60, and 120 min. Subjective appetite ratings (hunger, fullness, and desire to eat) were assessed by visual analogue scales (VAS, 100 mm) at baseline and 120 min. All three spaghetti types (regular, whole wheat, and high soluble fiber–low carbohydrates) provided low GI values (33, 38, and 41, respectively, on glucose scale) and lower peak glucose values compared to glucose or white bread. No differences were observed between spaghetti No 7 types for fasting glucose, fasting and post-test-meal insulin concentrations, blood pressure (systolic and diastolic), and subjective appetite. Conclusions: all spaghetti No 7 types, regardless of soluble fiber and/or protein content, attenuated postprandial glycemic response, which may offer advantages to glycemic control.
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Affiliation(s)
- Emilia Papakonstantinou
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece; (M.X.); (V.S.); (K.-A.P.)
- Correspondence: ; Tel.: +30-2105294967
| | - Marina Xaidara
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece; (M.X.); (V.S.); (K.-A.P.)
| | - Vassiliki Siopi
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece; (M.X.); (V.S.); (K.-A.P.)
| | - Marianna Giannoglou
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization “DEMETER”, 14123 Athens, Greece; (M.G.); (G.K.)
| | - George Katsaros
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization “DEMETER”, 14123 Athens, Greece; (M.G.); (G.K.)
| | - Georgios Theodorou
- Laboratory of Animal Breeding and Husbandry, Department of Animal Science, School of Animal Biosciences, Agricultural University of Athens, 11855 Athens, Greece;
| | - Eirini Maratou
- Department of Clinical Biochemistry, “Attikon” University General Hospital, National and Kapodistrian University of Athens, Haidari, 12462 Athens, Greece;
| | - Kalliopi-Anna Poulia
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece; (M.X.); (V.S.); (K.-A.P.)
| | - George D. Dimitriadis
- Sector of Medicine, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece;
| | - Panagiotis N. Skandamis
- Laboratory of Food Quality Control and Hygiene, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece;
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Evaluation of Shandong pancake with sourdough fermentation on the alleviation of type 2 diabetes symptoms in mice. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.104952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Effects of Diet, Lifestyle, Chrononutrition and Alternative Dietary Interventions on Postprandial Glycemia and Insulin Resistance. Nutrients 2022; 14:nu14040823. [PMID: 35215472 PMCID: PMC8878449 DOI: 10.3390/nu14040823] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/18/2022] [Accepted: 01/18/2022] [Indexed: 02/08/2023] Open
Abstract
As years progress, we are found more often in a postprandial than a postabsorptive state. Chrononutrition is an integral part of metabolism, pancreatic function, and hormone secretion. Eating most calories and carbohydrates at lunch time and early afternoon, avoiding late evening dinner, and keeping consistent number of daily meals and relative times of eating occasions seem to play a pivotal role for postprandial glycemia and insulin sensitivity. Sequence of meals and nutrients also play a significant role, as foods of low density such as vegetables, salads, or soups consumed first, followed by protein and then by starchy foods lead to ameliorated glycemic and insulin responses. There are several dietary schemes available, such as intermittent fasting regimes, which may improve glycemic and insulin responses. Weight loss is important for the treatment of insulin resistance, and it can be achieved by many approaches, such as low-fat, low-carbohydrate, Mediterranean-style diets, etc. Lifestyle interventions with small weight loss (7–10%), 150 min of weekly moderate intensity exercise and behavioral therapy approach can be highly effective in preventing and treating type 2 diabetes. Similarly, decreasing carbohydrates in meals also improves significantly glycemic and insulin responses, but the extent of this reduction should be individualized, patient-centered, and monitored. Alternative foods or ingredients, such as vinegar, yogurt, whey protein, peanuts and tree nuts should also be considered in ameliorating postprandial hyperglycemia and insulin resistance. This review aims to describe the available evidence about the effects of diet, chrononutrition, alternative dietary interventions and exercise on postprandial glycemia and insulin resistance.
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Yong G, Jing Q, Yao Q, Yang K, Ye X. Changing Meal Sequence Affects Glucose Excursions in Gestational Diabetes Mellitus. J Diabetes Res 2022; 2022:7083106. [PMID: 35915720 PMCID: PMC9338731 DOI: 10.1155/2022/7083106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 06/06/2022] [Accepted: 07/05/2022] [Indexed: 11/19/2022] Open
Abstract
Studies on nutrient sequences during meals suggest that consuming carbohydrates last lowers postprandial glucose excursions more than consuming carbohydrates first. However, this phenomenon has not been studied in gestational diabetes mellitus (GDM). Ten women with GDM consumed the same caloric foods in different sequences over five successive days: (A) dish first, followed by carbohydrate and soup last; (B) carbohydrate first, followed by dish and soup last; (C) soup first, followed by dish and carbohydrate last; (D) three meals a day ad libitum; and (E) six meals a day as ad libitum. Continuous glucose monitoring (CGM) was used to assess diurnal glycemia. Decreases in mean glucose levels and the largest glucose levels in A were similar to group C. The peak glucose of breakfast and lunch in group B was more significant than in groups A and C. The B meal pattern showed more marked glycemic excursions than groups A and C. Increasing the number of meals reduced the peak glucose level and the glycemic excursions with the same total calories. Changing meal sequences or increasing the number of meals may reduce glycemic excursions in GDM. Our trial was registered retrospectively and the trial registration number is ChiCTR2200057044.
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Affiliation(s)
- Guangjin Yong
- Department of Endocrinology, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213003, China
| | - Qian Jing
- Department of Endocrinology, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213003, China
| | - Qing Yao
- Department of Endocrinology, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213003, China
| | - Kechun Yang
- Department of Endocrinology, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213003, China
| | - Xinhua Ye
- Department of Endocrinology, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213003, China
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LIMA CHR, DA PAZ SMRS, LAVÔR LCDC, FROTA KDMG, PAIVA ADA. Prevalence of prediabetes in adults and its association with sociodemographic, nutritional, metabolic and mental disorders factors: Home Health Survey, Piauí, Brazil. REV NUTR 2022. [DOI: 10.1590/1678-9865202235e220046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
ABSTRACT Objective To estimate prevalence of prediabetes and to investigate its associated factors in adults living in Teresina, Piauí, Brazil Methods Cross-sectional, home-based study, with both genders adults in Teresina, Piauí. The prevalence of prediabetes was estimated using the fasting glucose test, and was classified according to the American Diabetes Association standards (≥100mg/dL; <126mg/dL). The associations between prediabetes and the variables: sociodemographic, anthropometric, food consumption, blood pressure levels, triglycerides and common mental disorders were tested. In addition, a variable was created to verify the association of the simultaneous presence of risk factors in the same individual. Data were reviewed using Pearson’s chi-square test and Poisson regression for crude and adjusted prevalence ratios, considering a significance level of 5%. Results A total of 224 adults participated in the study, of which 154 (68.7%) were female, aged between 20 and 39 years (53.1%). An 8.04% prevalence of prediabetes was observed. A statistically significant association (p<0.05) was found between lower education (0 to 8 years of study; 17.3%) and increased triglycerides levels (≥150mg/dL; 13.7%). Higher gross prevalence (PR: 2.53; CI 95%: 1.05-6.05) prediabetes ratios were observed with 5 or more simultaneous risk factors when compared to individuals who had up to 4 simultaneous risk factors. Conclusion Low schooling, hypertriglyceridemia and the presence of five or more simultaneous risk factors were associated with prediabetes; however, these risk factors are subject to intervention. Therefore, this study points to the need for changes in lifestyle habits as a strategy for glycemic control and diabetes prevention.
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Liu W, Li H, Wen Y, Liu Y, Wang J, Sun B. Molecular Mechanism for the α-Glucosidase Inhibitory Effect of Wheat Germ Peptides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:15231-15239. [PMID: 34874169 DOI: 10.1021/acs.jafc.1c06098] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Wheat germ peptides (WGPs) have various benefits to human health, while their antidiabetes mechanism remains unknown. In this study, the α-glucosidase inhibition activity of WGPs was identified, exhibiting an IC50 value of 6.87 mg/mL. By further filtrating them into five groups according to molecular weight (Mw), the fraction with Mw < 1 kDa displayed the highest inhibitory activity with an IC50 of 2.10 mg/mL. The addition of 2 mg/mL WGPs with Mw < 1 kDa effectively reduced the glucose-releasing rate on everted intestine sleeves. By virtual screening and HPLC-QTOF-MS/MS, LDLQR, AGGFR, and LDNFR were identified and synthesized for the first time, and their IC50 values were 8.59, 8.66, and 9.21 mM, respectively. Molecular docking and amino acid composition analysis results showed that the high content of C-terminal Arg residues in the peptides could be the essential reason for their α-glucosidase inhibition activity. This study paved a way to utilize WGPs as potential antidiabetes ingredients for the food industry.
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Affiliation(s)
- Weiwei Liu
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), School of Food and Health, Beijing Technology and Business University (BTBU), 11 Fucheng Road, Beijing 100048, China
| | - Hongyan Li
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), School of Food and Health, Beijing Technology and Business University (BTBU), 11 Fucheng Road, Beijing 100048, China
| | - Yangyang Wen
- College of Chemistry and Materials Engineering, Beijing Technology and Business University (BTBU), 11 Fucheng Road, Beijing 100048, China
| | - Yingli Liu
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), School of Food and Health, Beijing Technology and Business University (BTBU), 11 Fucheng Road, Beijing 100048, China
| | - Jing Wang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), School of Food and Health, Beijing Technology and Business University (BTBU), 11 Fucheng Road, Beijing 100048, China
| | - Baoguo Sun
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), School of Food and Health, Beijing Technology and Business University (BTBU), 11 Fucheng Road, Beijing 100048, China
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Design and synthesis of epigallocatechin (EGC) analogs selective to inhibit α-amylase over α-glucosidases via the incorporation of caffeine acid and its derivatives. Bioorg Chem 2021; 119:105515. [PMID: 34896919 DOI: 10.1016/j.bioorg.2021.105515] [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: 10/25/2021] [Revised: 11/16/2021] [Accepted: 11/21/2021] [Indexed: 11/21/2022]
Abstract
Natural products are a promising and underappreciated reservoir for the preferred chemical scaffolds in the search of antidiabetic drugs. In this study twenty-one EGC-based derivatives selective to inhibit human pancreatic α-amylase (HPA), the enzyme at the top of the starch digestion pyramid, have been designed and synthesized in terms of the lead myricetin-caffeic acid conjugate 1 reported ever. We focus on methylation of caffeic acid, length of a liker, a double bond contained in the linker on the inhibition activity and selectivity of EGC-based conjugates. As a result, methylation of caffeic acid and the length of a linker affect significantly the activity and selectivity of EGC-based conjugates, but the effect of a double in caffeic acid is limited. Conjugate 2a-1 having a six-carbon-atom linker fused to EGC and caffeic acid demonstrates the most ponent inhibitory activity to HPA and its selectivity towards HPA over α-glucosidase by far superior to that construct 1. Molecular docking studies reveal that conjugate 2a-1 accommodates well to the active site of HPA with four hydrogen bonds in the form of the preorganization of two moieties EGC and caffeic acid via π-stacking interaction. Collectively, conjugating caffeic acid and EGC with an appropriate linker possibly provides a new strategy for finding the specific HPA inhibitors in the discovery of anti-diabetes mellitus drugs.
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Nutrients and Dietary Approaches in Patients with Type 2 Diabetes Mellitus and Cardiovascular Disease: A Narrative Review. Nutrients 2021; 13:nu13114150. [PMID: 34836405 PMCID: PMC8622886 DOI: 10.3390/nu13114150] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/06/2021] [Accepted: 11/10/2021] [Indexed: 12/21/2022] Open
Abstract
Cardiovascular disease (CVD) is the most common cause of morbidity and mortality in developed countries. The prevalence of CVD is much higher in patients with type 2 diabetes mellitus (T2DM), who may benefit from lifestyle changes, which include adapted diets. In this review, we provide the role of different groups of nutrients in patients with T2DM and CVD, as well as dietary approaches that have been associated with better and worse outcomes in those patients. Many different diets and supplements have proved to be beneficial in T2DM and CVD, but further studies, guidelines, and dietary recommendations are particularly required for patients with both diseases.
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Insights into the latest advances in low glycemic foods, their mechanism of action and health benefits. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-021-01179-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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45
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Chuy V, Gentreau M, Artero S, Berticat C, Rigalleau V, Pérès K, Helmer C, Samieri C, Féart C. Simple carbohydrate intake and higher risk for physical frailty over 15 years in community-dwelling older adults. J Gerontol A Biol Sci Med Sci 2021; 77:10-18. [PMID: 34417799 DOI: 10.1093/gerona/glab243] [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: 04/08/2021] [Indexed: 11/13/2022] Open
Abstract
Insulin resistance is a major mechanism involved in the onset of physical frailty (PF). Although rich carbohydrate diets may promote insulin resistance, few studies have examined their association with PF risk. This study aimed to investigate the spectrum of carbohydrate exposure, including carbohydrate intake (simple, complex, and total), glycemic load (measure of the diet-related insulin-demand), and adherence to a low-carbohydrate diet with the incident risk of PF in community-dwelling older adults. Baseline carbohydrate exposure was assessed in non-frail participants of the Three-City-Bordeaux cohort using a 24H dietary recall. Over 15 years of follow-up, participants were screened for PF, defined by the FRAIL scale (≥3 criteria out of Fatigue, Resistance, Ambulation, Illnesses, and weight Loss). Associations were estimated using mixed-effects logistic models adjusted for sex, age, education, smoking status, alcohol consumption, depressive symptomatology, global cognitive performances, and protein and energy intakes. The sample included 1,210 participants (62% females, mean age 76 years). Over the follow-up, 295 (24%) incident cases of PF were documented (28% in females, 18% in males). Higher intake of simple carbohydrates was significantly associated with greater odds of incident PF (per 1-SD increased: OR = 1.29; 95% CI = 1.02-1.62), specifically among males (OR = 1.52; 95% CI = 1.04-2.22). No association was observed with complex or total carbohydrate intake, glycemic load, or low-carbohydrate diet. Among the whole carbohydrate exposure, only higher consumption of simple carbohydrates in older age was associated with a higher risk of developing PF. Further studies are required to explore underlying mechanisms.
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Affiliation(s)
- Virginie Chuy
- Univ. Bordeaux, INSERM, BPH, U1219, Bordeaux, France.,Univ. Bordeaux, CHU Bordeaux, Department of Dentistry and Oral Health, Bordeaux, France
| | - Mélissa Gentreau
- Institute of Functional Genomics, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Sylvaine Artero
- Institute of Functional Genomics, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Claire Berticat
- ISEM, University of Montpellier, CNRS, EPHE, IRD, Montpellier, France
| | - Vincent Rigalleau
- Univ. Bordeaux, INSERM, BPH, U1219, Bordeaux, France.,Univ. Bordeaux, CHU Bordeaux, Department of Endocrinology, Bordeaux, France
| | - Karine Pérès
- Univ. Bordeaux, INSERM, BPH, U1219, Bordeaux, France
| | - Catherine Helmer
- Univ. Bordeaux, INSERM, BPH, U1219, Bordeaux, France.,Clinical and Epidemiological Research Unit, INSERM CIC1401, Bordeaux, France
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Zhang K, Dong R, Hu X, Ren C, Li Y. Oat-Based Foods: Chemical Constituents, Glycemic Index, and the Effect of Processing. Foods 2021; 10:1304. [PMID: 34200160 PMCID: PMC8229445 DOI: 10.3390/foods10061304] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/26/2021] [Accepted: 05/29/2021] [Indexed: 02/07/2023] Open
Abstract
The desire for foods with lower glycemic indices has led to the exploration of functional ingredients and novel food processing techniques. The glycemic index (GI) is a well-recognized tool to assess the capacity of foods to raise blood glucose levels. Among cereal crops, oats have shown the greatest promise for mitigating glycemic response. This review evaluated decades of research on the effects of oat components on the GI level of oat-based foods with specific emphasis on oat starch, β-glucans, proteins, and phenolics. The effects of commonly used processing techniques in oats on GI level, including heating, cooling, and germination were also discussed. In addition, the GI of oat-based foods in various physical formats such as whole grain, flakes, and flour was systematically summarized. The aim of this review was to synthesize knowledge of the field and to provide a deeper understanding of how the chemical composition and processing of oats affect GI, thereby further benefiting the development of low-GI oat foods.
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Affiliation(s)
- Kailong Zhang
- Department of Food Engineering and Nutrition Science, Shaanxi Normal University, Xi’an 710119, China; (K.Z.); (R.D.)
| | - Rui Dong
- Department of Food Engineering and Nutrition Science, Shaanxi Normal University, Xi’an 710119, China; (K.Z.); (R.D.)
| | - Xinzhong Hu
- Department of Food Engineering and Nutrition Science, Shaanxi Normal University, Xi’an 710119, China; (K.Z.); (R.D.)
| | - Changzhong Ren
- Baicheng Academy of Agricultural Sciences, Baicheng 137000, China;
| | - Yuwei Li
- Guilin Seamild Food Co., Ltd., Guilin 541000, China;
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Hasan F, Jirout J, Garzione S, Kranz S. Changes in Learning Outcomes after Dietary Intervention in Preschoolers: A Pilot Study. Nutrients 2021; 13:1797. [PMID: 34070396 PMCID: PMC8230330 DOI: 10.3390/nu13061797] [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: 05/03/2021] [Revised: 05/19/2021] [Accepted: 05/21/2021] [Indexed: 11/23/2022] Open
Abstract
The executive functioning skill set, which includes working memory, cognitive flexibility, and inhibitory control, begins developing in early life and continues into adulthood. Preschoolers' abilities to perform those skills may be influenced by diet. The purpose of this study was to explore the acute effects of consuming a low-GI diet compared to the usual childcare diet on preschoolers' self-reported feelings of hunger and fullness and their performance on learning-associated tasks. This study was a prospective feeding trial in n = 20 children 3-4 years of age, completed in a laboratory setting where children attended "day camps" and consumed two days of usual diet (CON) and two days of low-GI (INT) diet. Learning outcomes were evaluated using select learning assessments including the Kansas Reflection-Impulsivity Scale for Preschoolers (KRISP), Track-it, Peg Tapping, and Happy/Sad. Repeated measures, full-factorial analysis of covariance revealed that diet was significantly related to impulsivity (p > 0.05), and univariate analysis of variance indicated that feelings of hunger and fullness differentially affected cognitive constructs in that feeling full improved impulsivity and attention, while feeling hungry improved inhibitory control. These findings highlight that the connection between diet and learning-related skills of children are independently mediated by both diet composition and feelings of hunger and fullness.
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Affiliation(s)
- Faten Hasan
- Department of Kinesiology, School of Education and Human Development, University of Virginia, Charlottesville, VA 22904, USA;
| | - Jamie Jirout
- Department of Education, Development, Leadership and Foundations, School of Education and Human Development, University of Virginia, Charlottesville, VA 22904, USA;
| | - Sarah Garzione
- College of Arts and Sciences, Formerly University of Virginia, Charlottesville, VA 22904, USA;
| | - Sibylle Kranz
- Department of Kinesiology, School of Education and Human Development, University of Virginia, Charlottesville, VA 22904, USA;
- Department of Public Health Sciences, School of Medicine, University of Virginia, Charlottesville, VA 22904, USA
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Regulation of Postabsorptive and Postprandial Glucose Metabolism by Insulin-Dependent and Insulin-Independent Mechanisms: An Integrative Approach. Nutrients 2021; 13:nu13010159. [PMID: 33419065 PMCID: PMC7825450 DOI: 10.3390/nu13010159] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/18/2020] [Accepted: 12/24/2020] [Indexed: 12/18/2022] Open
Abstract
Glucose levels in blood must be constantly maintained within a tight physiological range to sustain anabolism. Insulin regulates glucose homeostasis via its effects on glucose production from the liver and kidneys and glucose disposal in peripheral tissues (mainly skeletal muscle). Blood levels of glucose are regulated simultaneously by insulin-mediated rates of glucose production from the liver (and kidneys) and removal from muscle; adipose tissue is a key partner in this scenario, providing nonesterified fatty acids (NEFA) as an alternative fuel for skeletal muscle and liver when blood glucose levels are depleted. During sleep at night, the gradual development of insulin resistance, due to growth hormone and cortisol surges, ensures that blood glucose levels will be maintained within normal levels by: (a) switching from glucose to NEFA oxidation in muscle; (b) modulating glucose production from the liver/kidneys. After meals, several mechanisms (sequence/composition of meals, gastric emptying/intestinal glucose absorption, gastrointestinal hormones, hyperglycemia mass action effects, insulin/glucagon secretion/action, de novo lipogenesis and glucose disposal) operate in concert for optimal regulation of postprandial glucose fluctuations. The contribution of the liver in postprandial glucose homeostasis is critical. The liver is preferentially used to dispose over 50% of the ingested glucose and restrict the acute increases of glucose and insulin in the bloodstream after meals, thus protecting the circulation and tissues from the adverse effects of marked hyperglycemia and hyperinsulinemia.
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