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Pretorius L, Smith C. Green rooibos (Aspalathus linearis) promotes gut health: insight into mechanisms. J Ethnopharmacol 2024; 319:117379. [PMID: 37923252 DOI: 10.1016/j.jep.2023.117379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 10/20/2023] [Accepted: 10/31/2023] [Indexed: 11/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Paralleling the increasing incidence of gastrointestinal disorders world-wide, therapeutic investigations of nutraceuticals to promote gastrointestinal health are gaining popularity. Although anecdotally well-known for its gut health promoting potential, sparse scientific evidence supports this action of Aspalathus linearis (Burm.f.) R. Dahlgren - or rooibos - at the gastrointestinal epithelial level. AIM OF THE STUDY Traditionally, rooibos is considered to exert antispasmodic, anti-inflammatory, and anti-nociceptive effects in the gut. However, the direct effect on intestinal epithelium is unknown. Thus, to assess the validity of anecdotal claims, two larval zebrafish models were utilized to evaluate effects of rooibos on intestinal health. MATERIALS AND METHODS Firstly, a larval zebrafish model of gastrointestinal inflammation (2-day TNBS-exposure) was employed. Co-administration of 6α-methylprednisolone served as an internal treatment control. Assessments included live imaging techniques and post-mortem immunofluorescent staining of epithelial tight junction proteins. In addition, whole body H2O2 and prostaglandin E2 assays were performed. Secondly, a gastrointestinal motility assay was performed, with known pro- and anti-kinetic mediators to assess the effect of rooibos to alter functional outcome in vivo. RESULTS Aqueous and ethanol extracts of green rooibos rescued TNBS-induced reductions in neutral red stained length of larval mid-intestines. Subsequent experiments confirmed the rescue capacity of the aqueous green rooibos extract regarding whole body oxidative and inflammatory status. Concerning tight junction proteins, only the aqueous green rooibos extract - and not prednisolone - normalized both zona occludens-1 and occludin expression levels when compared the TNBS group. In terms of gastrointestinal motility, the aqueous green rooibos extract significantly reduced the extent of gut motility dysregulation achieved by kinetic modulators. CONCLUSIONS Data indicates the potential of a 2 mg/ml aqueous extract of green rooibos to improve gastrointestinal integrity and functionality in vivo, suggesting beneficial effects of rooibos may already occur at the level of the gut. This provides some evidence to support indigenous knowledge.
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Affiliation(s)
- Lesha Pretorius
- Experimental Medicine, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, 7500, South Africa.
| | - Carine Smith
- Experimental Medicine, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, 7500, South Africa.
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Rai BB, van Kleef JP, Sabeti F, Vlieger R, Suominen H, Maddess T. Early diabetic eye damage: Comparing detection methods using diagnostic power. Surv Ophthalmol 2024; 69:24-33. [PMID: 37797701 DOI: 10.1016/j.survophthal.2023.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 08/22/2023] [Accepted: 09/06/2023] [Indexed: 10/07/2023]
Abstract
It is now clear that retinal neuropathy precedes classical microvascular retinopathy in diabetes. Therefore, tests that underpin useful new endpoints must provide high diagnostic power well before the onset of moderate diabetic retinopathy. Hence, we compare detection methods of early diabetic eye damage. We reviewed data from a range of functional and structural studies of early diabetic eye disease and computed standardized effect size as a measure of diagnostic power, allowing the studies to be compared quantitatively. We then derived minimum performance criteria for tests to provide useful clinical endpoints. This included the criteria that tests should be rapid and easy so that children with type 1 diabetes can be followed into adulthood with the same tests. We also defined attributes that lend test data to further improve performance using Machine/Deep Learning. Data from a new form of objective perimetry suggested that the criteria are achievable.
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Affiliation(s)
- Bhim B Rai
- John Curtin School of Medical Research, Australian National University, Canberra, ACT, Australia; ANU Eccles Institute of Neuroscience, Australian National University, Canberra, ACT, Australia.
| | - Joshua P van Kleef
- John Curtin School of Medical Research, Australian National University, Canberra, ACT, Australia; ANU Eccles Institute of Neuroscience, Australian National University, Canberra, ACT, Australia
| | - Faran Sabeti
- John Curtin School of Medical Research, Australian National University, Canberra, ACT, Australia; School of Optometry, Faculty of Health, 2 University of Canberra, Canberra, ACT, Australia
| | - Robin Vlieger
- ANU School of Computing, Australian National University, Canberra, ACT, Australia
| | - Hanna Suominen
- ANU Eccles Institute of Neuroscience, Australian National University, Canberra, ACT, Australia; ANU School of Computing, Australian National University, Canberra, ACT, Australia; University of Turku, Turku, Finland
| | - Ted Maddess
- John Curtin School of Medical Research, Australian National University, Canberra, ACT, Australia; ANU Eccles Institute of Neuroscience, Australian National University, Canberra, ACT, Australia
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Chatree S, Suksri K, Muangchan N. Serum neuropeptide Y and peptide YY levels in response to ingestion of germinated brown rice in healthy adults. CyTA - Journal of Food 2023. [DOI: 10.1080/19476337.2023.2188903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Affiliation(s)
- Saimai Chatree
- Princess Srisavangavadhana College of Medicine, Chulabhorn Royal Academy, Bangkok, Thailand
| | - Kanchana Suksri
- Division of Pharmacology and Biopharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Burapha University, Chonburi, Thailand
| | - Nipaporn Muangchan
- Division of Biopharmacy, Faculty of Pharmaceutical Sciences, Ubon Ratchathani University, Ubon Ratchathani, Thailand
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Dong QQ, Wu Q, Lu Y, Shi Y, Yang KD, Xu XL, Chen W. Exploring β-glucan as a micro-nano system for oral delivery targeted the colon. Int J Biol Macromol 2023; 253:127360. [PMID: 37827417 DOI: 10.1016/j.ijbiomac.2023.127360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/27/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
The critical role of oral colon-specific delivery systems (OCDDS) is important for delivering active agents to the colon and rectum specifically via the oral route. The use of micro/nanostructured OCDDS further improves drug stability, bioavailability, and retention time, leading to enhanced therapeutic effects. However, designing micro/nanoscale OCDDSs is challenging due to pH changes, enzymatic degradation, and systemic absorption and metabolism. Biodegradable natural polysaccharides are a promising solution to these problems, and β-glucan is one of the most promising natural polysaccharides due to its unique structural features, conformational flexibility, and specific processing properties. This review covers the diverse chemical structures of β-glucan, its benefits (biocompatibility, easy modification, and colon-specific degradation), and various β-glucan-based micro/nanosized OCDDSs, as well as their drawbacks. The potential of β-glucan offers exciting new opportunities for colon-specific drug delivery.
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Affiliation(s)
- Qing-Qing Dong
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, PR China; Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, PR China
| | - Qian Wu
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, PR China
| | - Yi Lu
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, PR China
| | - Yi Shi
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, PR China
| | - Ke-Da Yang
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, PR China
| | - Xiao-Ling Xu
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, PR China.
| | - Wei Chen
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, PR China.
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Medkova D, Hollerova A, Blahova J, Marsalek P, Mares J, Hodkovicova N, Doubkova V, Hesova R, Tichy F, Faldyna M, Taştan Y, Kotoucek J, Svobodova Z, Lakdawala P. Medicine designed to combat diseases of affluence affects the early development of fish. How do plastic microparticles contribute? Sci Total Environ 2023; 904:166378. [PMID: 37595903 DOI: 10.1016/j.scitotenv.2023.166378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/10/2023] [Accepted: 08/15/2023] [Indexed: 08/20/2023]
Abstract
The incidence of diseases of affluence, such as diabetes mellitus, cardiovascular diseases, high blood pressure, and high cholesterol has been reported to rise. Consequently, the concentrations of residues of drugs designed to treat these diseases have been rising in water bodies. Moreover, the toxicity of these pharmaceuticals towards fish and other non-target organisms can be even enhanced by microplastic particles that are reportedly present in surface water. Therefore, the aim of this study was to describe the effects of three highly prescribed drugs, in particular metoprolol, enalapril, and metformin on fish early-life stages. Also, it was hypothesized that polystyrene microparticles will increase the toxicity of metoprolol to fish early-life stages. Embryonal acute toxicity tests on Danio rerio and Cyprinus carpio were carried out in order to describe the possible toxic effects of metoprolol, enalapril, and metformin. Also, the acute toxicity of polystyrene microparticles and the combination of metoprolol with polystyrene microparticles were tested on D. rerio embryos. Additionally, a 31-day long embryo-larval subchronic toxicity test was carried out with C. carpio in order to describe the long-term effects of low concentrations of metoprolol. The results of the study show that both metoprolol and enalapril have the potential to disrupt the early development of the heart in the embryonal stages of fish. Also, enalapril and metformin together with polystyrene microparticles seem to possibly disrupt the reproduction cycle and act as endocrine disruptors. Both pure polystyrene microparticles and the combination of them with metoprolol affect inflammatory processes in organisms. Additionally, metformin alters several metabolism pathways in fish early-life stages. The results of the study bring new evidence that even low, environmentally-relevant concentrations of pharmaceuticals have the potential to disrupt the early development of fish, particularly on a molecular level.
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Affiliation(s)
- Denisa Medkova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Czech Republic; Department of Zoology, Fisheries, Hydrobiology and Apiculture, Faculty of Agrisciences, Mendel University in Brno, Brno, Czech Republic; Department of Animal Breeding, Animal Nutrition and Biochemistry, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Czech Republic
| | - Aneta Hollerova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Czech Republic; Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Jana Blahova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Czech Republic
| | - Petr Marsalek
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Czech Republic
| | - Jan Mares
- Department of Zoology, Fisheries, Hydrobiology and Apiculture, Faculty of Agrisciences, Mendel University in Brno, Brno, Czech Republic
| | - Nikola Hodkovicova
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Veronika Doubkova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Czech Republic
| | - Renata Hesova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Czech Republic
| | - Frantisek Tichy
- Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Veterinary Sciences Brno, Czech Republic
| | - Martin Faldyna
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Yiğit Taştan
- Department of Aquaculture, Faculty of Fisheries, Kastamonu University, Kastamonu, Turkiye
| | - Jan Kotoucek
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Brno, Czech Republic
| | - Zdenka Svobodova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Czech Republic
| | - Pavla Lakdawala
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Czech Republic.
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Agyekum JA, Yeboah K. Peripheral sensory neuropathy is associated with circulating angiopoietins in type 2 diabetes patients in Ghana. J Clin Transl Endocrinol 2023; 34:100327. [PMID: 37822668 PMCID: PMC10563058 DOI: 10.1016/j.jcte.2023.100327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 09/09/2023] [Accepted: 09/28/2023] [Indexed: 10/13/2023] Open
Abstract
Objective Peripheral sensory neuropathy (PSN) is a common complication of type 2 diabetes (T2DM) that can lead to frequent ulcerations, lower extremities, and reduced quality of life. Imbalance in the circulating levels of angiogenic growth factors, notably, angiopoietin (Ang)-1, Ang-2 and vascular endothelial growth factor (VEGF) may be among the underlying mechanisms of PSN in T2DM patients. We studied the association between PSN and angiogenic growth factors, Ang-1, Ang-2 and VEGF in T2DM patients in Ghana. Methods In a case-control study design, PSN was evaluated in 160 patients with T2DM and 108 nondiabetic controls using vibration perception threshold (VPT) and diabetic neurological examination (DNE). The definition of PSN was abnormal VPT (≥25 mV) or the presence of neuropathic symptoms on examination (DNE score > 3). In addition, fasting venous blood samples were collected to measure circulating levels of Ang-1, Ang-2 and VEGF. Results Compared to non-diabetic controls, patients with T2DM had a higher prevalence of PSN using abnormal VPT (20.6 % vs 2.8 %, p < 0.001) or neuropathic symptoms (35.6 % vs 3.7 %, p < 0.001). Compared to nondiabetic controls, patients with T2DM had increased levels of Ang-2 [597 (274 - 1005) vs 838 (473 - 1241) ng/ml, p = 0.018] and VEGF [48.4 (17.4 - 110.1) vs 72.2 (28 - 201.8), p = 0.025] and decreased Ang-1 levels [41.1 (30 - 57.3) vs 36.1 (24.7 - 42.1) ng/ml, p = 0.01]. In regression analyses, an increase in Ang-1 levels was associated with decreased odds, while an increase in Ang-2 levels was associated with increased odds, of abnormal VPT and neuropathic symptoms in T2DM patients. Conclusion In our study population, PSN was associated with reduced plasma levels of Ang-1 and increased plasma levels of Ang-2 in patients with T2DM. Therefore, an imbalance of angiopoietins may be associated with PSN in T2DM.
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Affiliation(s)
- Jennifer A. Agyekum
- Department of Physiology, University of Ghana Medical School, Accra, Ghana
- Medical Laboratory Unit, Mamprobi Hospital, Ghana Health Services, Accra, Ghana
| | - Kwame Yeboah
- Department of Physiology, University of Ghana Medical School, Accra, Ghana
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Staltner R, Burger K, Baumann A, Bergheim I. Fructose: a modulator of intestinal barrier function and hepatic health? Eur J Nutr 2023; 62:3113-3124. [PMID: 37596353 PMCID: PMC10611622 DOI: 10.1007/s00394-023-03232-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 08/04/2023] [Indexed: 08/20/2023]
Abstract
PURPOSE Consumption of fructose has repeatedly been discussed to be a key factor in the development of health disturbances such as hypertension, diabetes type 2, and non-alcoholic fatty liver disease. Despite intense research efforts, the question if and how high dietary fructose intake interferes with human health has not yet been fully answered. RESULTS Studies suggest that besides its insulin-independent metabolism dietary fructose may also impact intestinal homeostasis and barrier function. Indeed, it has been suggested by the results of human and animal as well as in vitro studies that fructose enriched diets may alter intestinal microbiota composition. Furthermore, studies have also shown that both acute and chronic intake of fructose may lead to an increased formation of nitric oxide and a loss of tight junction proteins in small intestinal tissue. These alterations have been related to an increased translocation of pathogen-associated molecular patterns (PAMPs) like bacterial endotoxin and an induction of dependent signaling cascades in the liver but also other tissues. CONCLUSION In the present narrative review, results of studies assessing the effects of fructose on intestinal barrier function and their impact on the development of health disturbances with a particular focus on the liver are summarized and discussed.
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Affiliation(s)
- Raphaela Staltner
- Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Josef-Holaubek-Platz 2, A-1090, Vienna, Austria
| | - Katharina Burger
- Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Josef-Holaubek-Platz 2, A-1090, Vienna, Austria
| | - Anja Baumann
- Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Josef-Holaubek-Platz 2, A-1090, Vienna, Austria
| | - Ina Bergheim
- Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Josef-Holaubek-Platz 2, A-1090, Vienna, Austria.
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Raven LM, Stoita A, Feller RB, Brown C, Greenfield JR. Delayed Gastric Emptying with Perioperative Use of Glucagon-like Peptide-1 Receptor Agonists. Am J Med 2023; 136:e233-e234. [PMID: 37567375 DOI: 10.1016/j.amjmed.2023.07.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 08/13/2023]
Affiliation(s)
- Lisa M Raven
- Department of Diabetes and Endocrinology, St Vincent's Hospital, Sydney, Australia; Clinical Diabetes, Appetite and Metabolism Laboratory, Garvan Institute of Medical Research, Sydney, Australia; School of Clinical Medicine, St Vincent's Campus, Faculty of Medicine and Health, University of New South Wales, Sydney, Australia.
| | - Alina Stoita
- Department of Gastroenterology and Hepatology, St Vincent's Hospital, Sydney, Australia
| | - Robert B Feller
- School of Clinical Medicine, St Vincent's Campus, Faculty of Medicine and Health, University of New South Wales, Sydney, Australia; Department of Gastroenterology and Hepatology, St Vincent's Hospital, Sydney, Australia
| | - Campbell Brown
- Department of Anaesthetics, St Vincent's Hospital, Sydney, Australia
| | - Jerry R Greenfield
- Department of Diabetes and Endocrinology, St Vincent's Hospital, Sydney, Australia; Clinical Diabetes, Appetite and Metabolism Laboratory, Garvan Institute of Medical Research, Sydney, Australia; School of Clinical Medicine, St Vincent's Campus, Faculty of Medicine and Health, University of New South Wales, Sydney, Australia
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Ahmad B, Muhammad Yousafzai A, Khan N, Hussein AM, Kataya A, Studenik CR, Abdel-Maksoud MA. Dose-dependent anti-hyperglycemic & anti-dyslipidemic potential of aqueous leaves extract of Typha elephantina in-vivo and in-vitro. Saudi J Biol Sci 2023; 30:103868. [PMID: 38020229 PMCID: PMC10663895 DOI: 10.1016/j.sjbs.2023.103868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 10/24/2023] [Accepted: 11/02/2023] [Indexed: 12/01/2023] Open
Abstract
Diabetes mellitus is among the fundamental causes of illness and millions of deaths around the globe are directly attributed to it each year. Current antidiabetic medications often lack sustained glycemic control and carry significant risks of side effects. As a result, the use of plant-based treatments has gained popularity. In this experimental study, we evaluated the aqueous extracts (LQE) of Typha elephantina (also known as Elephant grass) leaves collected from freshwater marshes, for their potential anti-hyperglycemic and anti-hyperlipidemic antioxidant effects in healthy streptozotocin caused diabetic-mice. We employed glucose adsorption tests at different glucose levels and glucose diffusion tests to assess the in-vitro antidiabetic action of plant extract. For the in-vivo trail, we measured fasting blood glucose (FBG), glucose tolerance (GTT), as well as long-term anti-diabetic, anti-hyperlipidemic, and antioxidant activities. Our results from the glucose diffusion test indicated that the extract was highly effective at both low glucose concentrations (5 mmol L) and high glucose concentrations (100 mmol L). However, the glucose-diffusion ability reached its peaked at an excessively high dosage of the aqueous extract, suggesting a dose-related effect. Similarly, we observed that high doses of TEL.AQ extracts (400 mg/kg body weight) significantly reduced blood glucose levels in healthy mice during the glucose tolerance test (GTT) at 3 h and fasting blood glucose studies (FBG) at 6 h. Furthermore, the high-dose TEL.AQ extract effectively reduced liver-related serum markers and blood-glucose concentration (BGC) in severely chronic diabetic rats. The extract dosage also influenced lipid profile, conjugate and unconjugated bilirubin levels, cholesterol, triglycerides, HDL, and total bilirubin levels. Additionally, after administering a high extract dose, we observed considerable improvement in the liver homogenate markers CAT, POD, and SOD. In contrast, the extract at a low dosage (100 mg/kg), showed minimal, while a moderate dose (200 mg/kg), yielded promising results.
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Affiliation(s)
- Bashir Ahmad
- Department of Zoology, University of Malakand, Chakdara Dir Lower (188000, Khyber Pakhtunkhwa, Pakistan
| | - Ali Muhammad Yousafzai
- Department of Zoology, Islamia College University, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Nasrullah Khan
- Department of Botany, University of Malakand, Chakdara Dir Lower (188000, Khyber Pakhtunkhwa, Pakistan
| | - Ahmed M. Hussein
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, Vienna, Austria
| | - Amr Kataya
- Department of Biological Sciences, University of Calgary, Calgary, AB, Canada
| | - Christian R. Studenik
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, Vienna, Austria
| | - Mostafa A. Abdel-Maksoud
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
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Zhang Y, Chen L, Gao J, Cheng Y, Luo F, Bai X, Ding H. Nutritive/non-nutritive sweeteners and high fat diet contribute to dysregulation of sweet taste receptors and metabolic derangements in oral, intestinal and central nervous tissues. Eur J Nutr 2023; 62:3149-3159. [PMID: 37537344 DOI: 10.1007/s00394-023-03187-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 05/31/2023] [Indexed: 08/05/2023]
Abstract
OBJECTIVES Overconsumption of non-nutritive sweeteners is associated with obesity, whereas the underlying mechanisms remain controversial. This study aimed to investigate the effects of long-term consumption of nutritive or non-nutritive sweeteners with or without high fat diet on sweet taste receptor expression in nutrient-sensing tissues and energy regulation dependent on sweet-sensing. METHODS 50 Male Sprague-Dawley rats (140-160 g) were assigned to 10 groups (n = 5/group). All received fructose at 2.5% or 10%, sucralose at 0.01% or 0.015% or water with a normal chow diet or high fat diet for 12 weeks. Food and drink intake were monitored daily. Oral glucose tolerance test and intraperitoneal glucose tolerance test were performed at week 10 and 11 respectively. Serum was obtained for measurement of biochemical parameters. Tongue, duodenum, jejunum, ileum, colon and hypothalamus were rapidly removed to assess gene expression. RESULTS Long-term consumption of sweeteners impaired glucose tolerance, increased calorie intake and body weight. A significant upregulation of sweet taste receptor expression was observed in all the four intestinal segments in groups fed 0.01% sucralose or 0.015% sucralose, most strikingly in the ileum, accompanied by elevated serum glucagon-like peptide-1 levels and up-regulated expression of sodium-dependent glucose cotransporter 1 and glucose transporter 2. A significant down-regulation in the tongue and hypothalamus was observed in groups fed 10% fructose or 0.015% sucralose, with alterations in hypothalamic appetite signals. The presence of high fat diet differentially modulates sweet taste perception in nutrient-sensing tissues. CONCLUSIONS Long-term consumption of whether nutritive sweeteners or non-nutritive sweeteners combined with high fat diet contribute to dysregulation of sweet taste receptor expression in oral, intestinal and central nervous tissues.
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Affiliation(s)
- Yiyuan Zhang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Wuhan University, Wuhan, 430000, China
| | - Lu Chen
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Wuhan University, Wuhan, 430000, China
| | - Jiefang Gao
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Wuhan University, Wuhan, 430000, China
| | - Yahong Cheng
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Wuhan University, Wuhan, 430000, China
| | - Fei Luo
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Wuhan University, Wuhan, 430000, China
| | - Xinying Bai
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Wuhan University, Wuhan, 430000, China
| | - Hong Ding
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Wuhan University, Wuhan, 430000, China.
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Cavalcante LBCP, Brandão CMÁ, Chiamolera MI, Biscolla RPM, Junior JVL, de Sá Tavares Russo P, Morgado JPM, de Francischi Ferrer CMA, Vieira JGH. Big data-based parathyroid hormone (PTH) values emphasize need for age correction. J Endocrinol Invest 2023; 46:2525-2533. [PMID: 37286864 PMCID: PMC10632255 DOI: 10.1007/s40618-023-02107-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 04/30/2023] [Indexed: 06/09/2023]
Abstract
PURPOSE We aimed to study the relationship between aging and increased parathyroid hormone (PTH) values. METHODS We performed a retrospective cross-sectional study with data from patients who underwent outpatient PTH measurements performed by a second-generation electrochemiluminescence immunoassay. We included patients over 18 years of age with simultaneous PTH, calcium, and creatinine measurements and 25-OHD measured within 30 days. Patients with glomerular filtration rate < 60 mL/min/1.73 m2, altered calcemia, 25-OHD level < 20 ng/mL, PTH values > 100 pg/mL or using lithium, furosemide or antiresorptive therapy were excluded. Statistical analyses were performed using the RefineR method. RESULTS Our sample comprised 263,242 patients for the group with 25-OHD ≥ 20 ng/mL, that included 160,660 with 25-OHD ≥ 30 ng/mL. The difference in PTH values among age groups divided by decades was statistically significant (p < 0.0001), regardless of 25-OHD values, ≥ 20 or ≥ 30 ng/mL. In the group with 25-OHD ≥ 20 ng/mL and more than 60 years, the PTH values were 22.1-84.0 pg/mL, a different upper reference limit from the reference value recommended by the kit manufacturer. CONCLUSION We observed a correlation between aging and PTH increase, when measured by a second-generation immunoassay, regardless of vitamin D levels, if greater than 20 ng/mL, in normocalcemic individuals without renal dysfunction.
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Affiliation(s)
- L B C P Cavalcante
- Fleury Group, Rua Mato Grosso, 306, cj 408, Higienópolis, São Paulo, SP, 01239-040, Brazil.
| | - C M Á Brandão
- Fleury Group, Rua Mato Grosso, 306, cj 408, Higienópolis, São Paulo, SP, 01239-040, Brazil
| | - M I Chiamolera
- Fleury Group, Rua Mato Grosso, 306, cj 408, Higienópolis, São Paulo, SP, 01239-040, Brazil
| | - R P M Biscolla
- Fleury Group, Rua Mato Grosso, 306, cj 408, Higienópolis, São Paulo, SP, 01239-040, Brazil
| | - J V L Junior
- Fleury Group, Rua Mato Grosso, 306, cj 408, Higienópolis, São Paulo, SP, 01239-040, Brazil
| | - P de Sá Tavares Russo
- Fleury Group, Rua Mato Grosso, 306, cj 408, Higienópolis, São Paulo, SP, 01239-040, Brazil
| | - J P M Morgado
- Fleury Group, Rua Mato Grosso, 306, cj 408, Higienópolis, São Paulo, SP, 01239-040, Brazil
| | | | - J G H Vieira
- Fleury Group, Rua Mato Grosso, 306, cj 408, Higienópolis, São Paulo, SP, 01239-040, Brazil
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Wang Q, Lin H, Shen C, Zhang M, Wang X, Yuan M, Yuan M, Jia S, Cao Z, Wu C, Chen B, Gao A, Bi Y, Ning G, Wang W, Wang J, Liu R. Gut microbiota regulates postprandial GLP-1 response via ileal bile acid-TGR5 signaling. Gut Microbes 2023; 15:2274124. [PMID: 37942583 DOI: 10.1080/19490976.2023.2274124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 10/18/2023] [Indexed: 11/10/2023] Open
Abstract
The gut microbiota interacts with intestinal epithelial cells through microbial metabolites to regulate the release of gut hormones. We investigated whether the gut microbiota affects the postprandial glucagon-like peptide-1 (GLP-1) response using antibiotic-treated mice and germ-free mice. Gut microbiome depletion completely abolished postprandial GLP-1 response in the circulation and ileum in a lipid tolerance test. Microbiome depletion did not influence the GLP-1 secretory function of primary ileal cells in response to stimulators in vitro, but dramatically changed the postprandial dynamics of endogenous bile acids, particularly ω-muricholic acid (ωMCA) and hyocholic acid (HCA). The bile acid receptor Takeda G protein-coupled receptor 5 (TGR5) but not farnesoid X receptor (FXR), participated in the regulation of postprandial GLP-1 response in the circulation and ileum, and ωMCA or HCA stimulated GLP-1 secretion via TGR5. Finally, fecal microbiota transplantation or ωMCA and HCA supplementation restored postprandial GLP-1 response. In conclusion, gut microbiota is indispensable for maintaining the postprandial GLP-1 response specifically in the ileum, and bile acid (ωMCA and HCA)-TGR5 signaling is involved in this process. This study helps to understand the essential interplay between the gut microbiota and host in regulating postprandial GLP-1 response and opens the foundation for new therapeutic targets.
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Affiliation(s)
- Qiaoling Wang
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huibin Lin
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chongrong Shen
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Minchun Zhang
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xingyu Wang
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Miaomiao Yuan
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mingyang Yuan
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Sheng Jia
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhiwen Cao
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chao Wu
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Banru Chen
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Aibo Gao
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yufang Bi
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guang Ning
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weiqing Wang
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiqiu Wang
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruixin Liu
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Sajjadpour Z, Hoseini Tavassol Z, Aghaei Meybodi HR, Eskandarynasab M, Pejman Sani M, Hasani-Ranjbar S, Larijani B. Evaluating the effectiveness of melatonin in reducing the risk of foot ulcers in diabetic patients. J Diabetes Metab Disord 2023; 22:1073-1082. [PMID: 37975123 PMCID: PMC10638255 DOI: 10.1007/s40200-023-01289-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 08/22/2023] [Indexed: 11/19/2023]
Abstract
Objectives Diabetes and its complications, as a major health concern, are associated with morbidity and mortality around the world. One of these complications is diabetic foot ulcer. Factors such as hyperglycemia, neuropathy, vascular damage and impaired immune system can cause foot ulcers. The present review aims to study the potential effects of melatonin, the main product of pineal glands, on diabetic foot ulcers. Methods A narrative review was performed using present literature in an attempt to identify the different aspects of melatonin's impact on diabetic foot ulcers by searching related keywords in electronic databases without any restriction. Results This review shows that, melatonin has anti-diabetic effects. It is effective in reducing the risk of hyperglycemia, neuropathy, vascular damage and immune system impairment in diabetic patients. By reducing these complications with melatonin, correspondingly, the incidence of diabetic foot ulcers may also decrease in these patients. Conclusions The results of this study indicate promising properties of melatonin while dealing with diabetic foot ulcers and their common underlying conditions, but still, it needs to be investigated more in future studies.
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Affiliation(s)
- Zahra Sajjadpour
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Hoseini Tavassol
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Reza Aghaei Meybodi
- Evidence Based Medicine Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Eskandarynasab
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahnaz Pejman Sani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Shirin Hasani-Ranjbar
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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14
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Barenbaum SR, Kumar RB, Aronne LJ. Management of Medication-Induced Weight Gain. Gastroenterol Clin North Am 2023; 52:751-760. [PMID: 37919025 DOI: 10.1016/j.gtc.2023.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
Several medications can contribute to weight gain. Medication-induced weight gain can have severe health consequences leading to overweight or obesity, or exacerbation of preexisting obesity and the plethora of obesity-related comorbidities. Weight gain due to medications is potentially avoidable by prescribing medications that are either weight neutral or that lead to weight loss, when appropriate. This article reviews the common classes of medications that contribute to weight gain and discusses alternatives to consider.
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Affiliation(s)
- Sarah R Barenbaum
- Division of Endocrinology, Diabetes & Metabolism, NewYork-Presbyterian Hospital/ Weill Cornell Medical College, Comprehensive Weight Control Center, 1305 York Avenue, 4th Floor, New York, NY 10021, USA.
| | - Rekha B Kumar
- Iris Cantor Women's Health Center, Endocrinology & Internal Medicine, 425 East 61st Street, Fl 11, New York, NY 10065, USA
| | - Louis J Aronne
- Division of Endocrinology, Diabetes & Metabolism, NewYork-Presbyterian Hospital/ Weill Cornell Medical College, Comprehensive Weight Control Center, 1305 York Avenue, 4th Floor, New York, NY 10021, USA
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15
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Katsumata R, Hosokawa T, Manabe N, Mori H, Wani K, Ishii K, Tanikawa T, Urata N, Ayaki M, Nishino K, Murao T, Suehiro M, Fujita M, Kawanaka M, Haruma K, Kawamoto H, Takao T, Kamada T. Brain activity in response to food images in patients with irritable bowel syndrome and functional dyspepsia. J Gastroenterol 2023; 58:1178-1187. [PMID: 37572136 PMCID: PMC10657794 DOI: 10.1007/s00535-023-02031-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 07/29/2023] [Indexed: 08/14/2023]
Abstract
BACKGROUND Functional dyspepsia (FD) and irritable bowel syndrome (IBS) are caused and exacerbated by consumption of fatty foods. However, no study has evaluated brain activity in response to food images in patients with disorders of gut-brain interaction (DGBI). This study aimed to compare food preference and brain activity when viewing food images between patients with DGBI and healthy controls. METHODS FD and IBS were diagnosed using the ROME IV criteria. Food preference was assessed using a visual analog scale (VAS). Brain activity in the prefrontal cortex (PFC) in response to food images was investigated using functional near-infrared spectroscopy (fNIRS). RESULTS Forty-one patients were enrolled, including 25 with DGBI. The mean VAS scores for all foods (controls vs. FD vs. IBS: 69.1 ± 3.3 vs. 54.8 ± 3.8 vs. 62.8 ± 3.7, p = 0.02), including fatty foods (78.1 ± 5.4 vs. 43.4 ± 6.3 vs. 64.7 ± 6.1, p < 0.01), were the lowest in patients with FD among all groups. Patients with FD had significantly higher brain activity in the left PFC than those with IBS and healthy controls (mean z-scores in controls vs. FD vs. IBS: - 0.077 ± 0.03 vs. 0.125 ± 0.04 vs. - 0.002 ± 0.03, p < 0.001). CONCLUSIONS Patients with DGBI, particularly those with FD, disliked fatty foods. The brain activity in patients with DGBI differed from that in healthy controls. Increased activity in the PFC of patients with FD was confirmed.
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Affiliation(s)
- Ryo Katsumata
- Department of Health Care Medicine, Kawasaki Medical School General Medical Center, 2-6-1, Nakasange, Kita-Ku, Okayama, 700-8505, Japan.
| | - Takayuki Hosokawa
- Department of Orthoptics, Faculty of Rehabilitation, Kawasaki University of Medical Welfare, 288 Matsushima, Kurashiki, Okayama, 701-0193, Japan
| | - Noriaki Manabe
- Department of Clinical Pathology and Laboratory Medicine, Kawasaki Medical School General Medical Center, 2-6-1, Nakasange, Kita-Ku, Okayama, 700-8505, Japan
| | - Hitoshi Mori
- Department of Neurology, Kawasaki Medical School General Medical Center, 2-6-1, Nakasange, Kita-Ku, Okayama, 700-8505, Japan
| | - Kenta Wani
- Department of Psychiatry, Kawasaki Medical School General Medical Center, 2-6-1, Nakasange, Kita-Ku, Okayama, 700-8505, Japan
| | - Katsunori Ishii
- Department of General Internal Medicine 2, Kawasaki Medical School General Medical Center, 2-6-1, Nakasange, Kita-Ku, Okayama, 700-8505, Japan
| | - Tomohiro Tanikawa
- Department of General Internal Medicine 2, Kawasaki Medical School General Medical Center, 2-6-1, Nakasange, Kita-Ku, Okayama, 700-8505, Japan
| | - Noriyo Urata
- Department of General Internal Medicine 2, Kawasaki Medical School General Medical Center, 2-6-1, Nakasange, Kita-Ku, Okayama, 700-8505, Japan
| | - Maki Ayaki
- Department of Clinical Pathology and Laboratory Medicine, Kawasaki Medical School General Medical Center, 2-6-1, Nakasange, Kita-Ku, Okayama, 700-8505, Japan
| | - Ken Nishino
- Department of General Internal Medicine 2, Kawasaki Medical School General Medical Center, 2-6-1, Nakasange, Kita-Ku, Okayama, 700-8505, Japan
| | - Takahisa Murao
- Department of Health Care Medicine, Kawasaki Medical School General Medical Center, 2-6-1, Nakasange, Kita-Ku, Okayama, 700-8505, Japan
| | - Mitsuhiko Suehiro
- Department of General Internal Medicine 2, Kawasaki Medical School General Medical Center, 2-6-1, Nakasange, Kita-Ku, Okayama, 700-8505, Japan
| | - Minoru Fujita
- Department of Clinical Pathology and Laboratory Medicine, Kawasaki Medical School General Medical Center, 2-6-1, Nakasange, Kita-Ku, Okayama, 700-8505, Japan
| | - Miwa Kawanaka
- Department of General Internal Medicine 2, Kawasaki Medical School General Medical Center, 2-6-1, Nakasange, Kita-Ku, Okayama, 700-8505, Japan
| | - Ken Haruma
- Department of General Internal Medicine 2, Kawasaki Medical School General Medical Center, 2-6-1, Nakasange, Kita-Ku, Okayama, 700-8505, Japan
| | - Hirofumi Kawamoto
- Department of General Internal Medicine 2, Kawasaki Medical School General Medical Center, 2-6-1, Nakasange, Kita-Ku, Okayama, 700-8505, Japan
| | - Toshihiro Takao
- Department of Health Care Medicine, Kawasaki Medical School, 577, Matsushima, Kurashiki, 701-0192, Japan
| | - Tomoari Kamada
- Department of Health Care Medicine, Kawasaki Medical School General Medical Center, 2-6-1, Nakasange, Kita-Ku, Okayama, 700-8505, Japan
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Hoornenborg C, van Dijk T, Bruggink J, van Beek A, van Dijk G. Acute sub-diaphragmatic anterior vagus nerve stimulation increases peripheral glucose uptake in anaesthetized rats. IBRO Neurosci Rep 2023; 15:50-56. [PMID: 37415729 PMCID: PMC10320406 DOI: 10.1016/j.ibneur.2023.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 06/15/2023] [Indexed: 07/08/2023] Open
Abstract
The sub-diaphragmatic vagus innervates various organs involved in the control of glucose homeostasis including the liver, pancreas and the intestines. In the current study, we investigated the effect of acute electrical stimulation of the anterior trunk of the sub-diaphragmatic vagus on glucose fluxes in anaesthetized adult male rats. After overnight fast, rats underwent either vagus nerve stimulation (VNS+, n = 11; rectangular pulses at 5 Hz, 1.5 mA, 1 msec pulse width) or sham stimulation (VNS-; n = 11) for 120 min under isoflurane anesthesia. Before stimulation, the rats received an i.v. bolus of 1 mL/kg of a sterilized aqueous solution containing 125 mg/mL of D-[6,6-2H2] glucose. Endogenous glucose production (EGP) and glucose clearance rate (GCR) were calculated by kinetic analysis from the wash-out of injected D-[6,6-2H2]glucose from the circulation. VNS+ resulted in lower glucose levels compared to the VNS- group (p < 0.05), with similar insulin levels. EGP was similar in both groups, but the GCR was higher in the VNS+ group compared to the VNS- group (p < 0.001). Circulating levels of the sympathetic transmitter norepinephrine were reduced by VNS+ relative to VNS- treatment (p < 0.01). It is concluded that acute anterior sub-diaphragmatic VNS causes stimulation of peripheral glucose uptake, while plasma insulin levels remained similar, and this is associated with lower activity of the sympathetic nervous system.
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Affiliation(s)
- C.W. Hoornenborg
- Groningen Institute for Evolutionary Life Sciences (GELIFES), Department of Behavioral Neuroscience, University of Groningen, Groningen, the Netherlands
- Department of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - T.H. van Dijk
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - J.E. Bruggink
- Groningen Institute for Evolutionary Life Sciences (GELIFES), Department of Behavioral Neuroscience, University of Groningen, Groningen, the Netherlands
| | - A.P. van Beek
- Department of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - G. van Dijk
- Groningen Institute for Evolutionary Life Sciences (GELIFES), Department of Behavioral Neuroscience, University of Groningen, Groningen, the Netherlands
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Ülger P, Yildiz E, Tyczynski B, Findeisen H, Kribben A, Janssen OE, Herget-Rosenthal S. Effect of stress hyperglycaemia on acute kidney injury in non-diabetic critically ill patients? Int Urol Nephrol 2023; 55:3253-3259. [PMID: 37160486 DOI: 10.1007/s11255-023-03612-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/23/2023] [Indexed: 05/11/2023]
Abstract
BACKGROUND Stress hyperglycaemia (SH) and acute kidney injury (AKI) occur frequently in critically ill patients, and particularly non-diabetics are associated with adverse outcome. Data is scarce on the effect of SH on AKI. We assessed whether SH (i) preceded AKI, (ii) was a risk factor of subsequent AKI, and (iii) how SH and tubular injury interacted in AKI development in critically ill, non-diabetics. METHODS Case-control study of 82 patients each with and without SH matched by propensity score for multiple demographic characteristics. AKI was defined by KDIGO criteria, SH either as blood glucose (BG) > 140 mg/dl (BG140), > 200 mg/dl (BG200), or stress hyperglycemia rate (SHR) ≥ 1.47 (SHR1.47) as measured 2 days before AKI. Urinary cystatin C and neutrophil gelatinase-associated lipocalin (NGAL) indicated tubular injury. RESULTS In AKI, SH rates were frequent using all 3 definitions applied, but highest when BG140 was applied. SH by all 3 definitions was consistently associated with AKI. This was independent of established risk factors of AKI such as sepsis and shock. Increments of BG, urinary NGAL or cystatin C, and its products, were independently associated with the likelihood of subsequent AKI, demonstrating their reciprocal potentiating effects on AKI development. CONCLUSIONS SH is frequent in critically ill, non-diabetics with AKI. SH was identified as an independent risk factor of AKI. Higher BG combined with tubular injury may potentiate their adverse effects on AKI.
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Affiliation(s)
- Perihan Ülger
- Department of Nephrology, University Duisburg-Essen, Essen, Germany
| | - Ebru Yildiz
- Department of Nephrology, University Duisburg-Essen, Essen, Germany
| | | | - Hajo Findeisen
- Department of Medicine, Rotes Kreuz Krankenhaus, St. Pauli Deich 24, 28199, Bremen, Germany
| | - Andreas Kribben
- Department of Nephrology, University Duisburg-Essen, Essen, Germany
| | - Onno E Janssen
- Endokrinologikum, and Asklepios Medical School, Hamburg, Germany
- Subsidiary of the Semmelweis University, Budapest, Hungary
| | - Stefan Herget-Rosenthal
- Department of Nephrology, University Duisburg-Essen, Essen, Germany.
- Department of Medicine, Rotes Kreuz Krankenhaus, St. Pauli Deich 24, 28199, Bremen, Germany.
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18
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Passos AA, Moita VHC, Kim SW. Individual or combinational use of phytase, protease, and xylanase for the impacts on total tract digestibility of corn, soybean meal, and distillers dried grains with soluble fed to pigs. Anim Biosci 2023; 36:1869-1879. [PMID: 37641823 PMCID: PMC10623029 DOI: 10.5713/ab.23.0212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 07/31/2023] [Accepted: 08/28/2023] [Indexed: 08/31/2023] Open
Abstract
OBJECTIVE This study was to evaluate the effects of individual or combinational use of phytase, protease, and xylanase on total tract digestibility of corn, soybean meal, and distillers dried grains with soluble (DDGS) fed to pigs. METHODS Each experiment had four 4×4 Latin squares using 16 barrows. Each period had 5-d adaptation and 3-d collection. All experiments had: CON (no enzyme); Phy (CON+phytase); Xyl (CON+xylanase); Pro (CON+protease); Phy+Xyl; Phy+Pro, Xyl+Pro, Phy+Xyl+Pro. Each Latin square had 'CON, Phy, Xyl, and Phy+Xyl'; 'CON, Phy, Pro, and Phy+Pro'; 'CON, Pro, Xyl, and Xyl+Pro'; and 'Phy+Xyl, Phy+Pro, Xyl+Pro, Phy+Xyl+Pro'. RESULTS The digestible energy (DE), metabolizable energy (ME), and nitrogen retention (NR) of corn were not affected by enzymes but the apparent total tract digestibility (ATTD) of phosphorus (P) was improved (p<0.01) by Phy. The DE and ATTD dry matter (DM) in soybean meal were increased (p<0.05) by Phy+Pro and the ATTD P was improved (p<0.01) by Phy, Phy+Pro, and Phy+Xyl. The DE, ME, and ATTD DM in DDGS were improved (p<0.05) by Phy+Xyl and the ATTD P was improved (p<0.01) by Phy, Phy+Pro, and Phy+Xyl. CONCLUSION Phytase individually or in combination with xylanase and protease improved the Ca and P digestibility of corn, soybean meal, and DDGS, from the hydrolysis of phytic acid. The supplementation of protease was more effective when combined with phytase and xylanase in the soybean meal and DDGS possibly due to a higher protein content in these feedstuffs. Xylanase was more effective in DDGS diets due to the elevated levels of non-starch polysaccharides in these feedstuffs. However, when xylanase was combined with phytase, it demonstrated a higher efficacy improving the nutrient digestibility of pigs. Overall, combinational uses of feed enzymes can be more efficient for nutrient utilization in soybean meal and DDGS than single enzymes.
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