1
|
Abdelnaby EA, Fathi M, Salem NY, Ramadan ES, Yehia SG, Emam IA, Salama A, Samir H, El-Sherbiny HR. Outcomes of dietary alpha-lipoic acid on testicular vascularization, steroid hormones, and seminal quality in aged Baladi bucks. BMC Vet Res 2024; 20:293. [PMID: 38969980 PMCID: PMC11225370 DOI: 10.1186/s12917-024-04134-4] [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: 01/19/2023] [Accepted: 06/12/2024] [Indexed: 07/07/2024] Open
Abstract
BACKGROUND Senescence is accompanied by a progressive decrease in male reproductive performance, mainly due to oxidative stress and endothelial dysfunction. Alpha lipoic acid (ALA) is a potent antioxidant, that diffuses freely in aqueous and lipid phases, possessing anti-inflammatory and anti-apoptotic properties. This study aimed to examine the effects of supplemental dietary ALA on testicular hemodynamics (TH), circulating hormones, and semen quality in aged goats. Twelve Baladi bucks were divided into two groups (n = 6 each); the first fed a basic ration and served as a control group (CON), while the second received the basic ration supplemented with 600 mg ALA/ kg daily for consecutive eight weeks (ALA). RESULTS There were improvements in testicular blood flow in the ALA group evidenced by a lower resistance index (RI) and pulsatility index (PI) concurrent with higher pampiniform-colored areas/pixel (W3-W6). There were increases in testicular volume and decreases in echogenicity (W3-W5; ALA vs. CON). Compared to the CON, ALA-bucks had higher serum concentrations of testosterone, estradiol, and nitric oxide (W3-W5). There were enhancements in semen traits (progressive motility, viability, morphology, and concentration, alanine aminotransferase enzyme) and oxidative biomarkers (catalase, total antioxidant capacity, and malondialdehyde). CONCLUSIONS ALA dietary supplementation (600 mg/kg diet) improved aged bucks' reproductive performance by enhancing the testicular volume, testicular hemodynamics, sex steroids, and semen quality.
Collapse
Affiliation(s)
- Elshymaa A Abdelnaby
- Theriogenology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Mohamed Fathi
- Theriogenology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Noha Y Salem
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
| | - Eman S Ramadan
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Shimaa G Yehia
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Ibrahim A Emam
- Department of Surgery, and Radiology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Ali Salama
- Theriogenology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Haney Samir
- Theriogenology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Hossam R El-Sherbiny
- Theriogenology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| |
Collapse
|
2
|
Mohammadshahi M, Zakizadeh E, Ahmadi-Angali K, Ravanbakhsh M, Helli B. The synergic effects of alpha-lipoic acid supplementation and electrical isotonic contraction on anthropometric measurements and the serum levels of VEGF, NO, sirtuin-1, and PGC1-α in obese people undergoing a weight loss diet. Arch Physiol Biochem 2022; 128:1195-1201. [PMID: 32407179 DOI: 10.1080/13813455.2020.1762660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Background: The anti-obesity effects of Alpha-lipoic acid (α-LA) and isotonic contraction has been reported. However, the underlying mechanism is not fully understood. This study aimed to investigate the effect of 1200 mg/day α-LA supplementation and 3 sessions per week of Faradic (an electrical stimulating system) on anthropometric parameters, body composition, VEGF, Sirtuin-1, nitric oxide (NO), and PGC1-α in obese people undergoing a weight loss regime.Methods: This randomised clinical trial was carried out on 100 obese adults. The subjects were randomly assigned to four groups of 25 subjects including Faradic, α-LA, α-LA + Faradic, and control. A Bio Impedance Analyser (BIA) was used to estimate anthropometric measurements including weight, body mass index (BMI), fat mass, and fat free mass. The serum levels of Sirtuin-1, PGC1-α, VEGF, and NO levels were measured. All measurements were done at baseline and after 8 weeks of the intervention.Results: A significant weight reduction was observed in all four groups compared to baseline (p<.01). The placebo group had significantly higher weight, BMI, weight circumstance (WC), and body fat (BF) compared with the other groups. The α-LA + Faradic group had significantly lower weight, BMI, BF, WC than control, faradic, and α-LA groups and higher, Sirtuin and PGC than the control group (all p < .05).Conclusions: The findings indicated that the α-LA and Faradic interventions may have a synergistic effect on weight, BMI, BF, WC, and SLM, possibly through changes in serum level of VEGF, NO, and PGC. Further studies are warranted to clarify the mutual effects of -α-LA and Faradic on obesity and its molecular mechanisms. Name of the registry: Iranian Registry of Clinical TrialsTrial registration number: IRCT20131117015424N2Date of registration: 04/04/2018URL of trial registry record: https://www.irct.ir/search/result?query=IRCT20131117015424N2.
Collapse
Affiliation(s)
- Majid Mohammadshahi
- Department of Nutrition, Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical sciences, Ahvaz, Iran
| | - Elahe Zakizadeh
- Department of Nutrition, Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical sciences, Ahvaz, Iran
| | - Kambiz Ahmadi-Angali
- Faculty of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Majid Ravanbakhsh
- Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Bijan Helli
- Department of Nutrition, Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical sciences, Ahvaz, Iran
| |
Collapse
|
3
|
Regenerative antibacterial hydrogels from medicinal molecule for diabetic wound repair. Bioact Mater 2022; 25:541-554. [PMID: 37056262 PMCID: PMC10087079 DOI: 10.1016/j.bioactmat.2022.07.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 06/23/2022] [Accepted: 07/18/2022] [Indexed: 11/21/2022] Open
Abstract
Hydrogel products for chronic diabetic wounds, a serious and prevalent complication of diabetes, show limited effects on disability and remain nonspecific. Thus, improvements in the usage of pharmaceutical molecule in the hydrogels are highly desirable to increase the therapeutic effect of hydrogels. In this study, thioctic acid (a common medicine molecule in diabetes treatment) is used for preparing regenerative antibacterial hydrogels (RAH) which contains in situ synthesized silver nanoparticles (AgNPs). The RAH shows regenerative, self-healing and injectable ability, because of the reversible hydrogen and coordination bonds. With good regenerative capacity, RAH can be stored as powder to avoid the water loss and facilitate storage availability. Owing to the antioxidant properties of thioctic acid, the RAH can decrease the oxidative damage and retain cell proliferation efficiency. Due to the in situ synthesized AgNPs, the RAH also exhibits extraordinary antimicrobial capacities against MDR bacteria. All of these superiorities enable RAH to be a promising therapy for chronic diabetic wounds.
Collapse
|
4
|
Ramos CSCB, Silva VAPD, Corrêa LBNS, Abboud RDS, Boaventura GT, Chagas MA. Long-Term Alpha-Lipoic Acid (ALA) Antioxidant Therapy Reduces Damage in the Cardiovascular System of Streptozotocin-Induced Diabetic Rats. J Diet Suppl 2021; 20:444-458. [PMID: 34806528 DOI: 10.1080/19390211.2021.2004290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Cellular damage, lipid oxidation and the action of inflammatory cytokines are implicated in the evolution of vascular complications associated with diabetes mellitus (DM) hyperglycemia. In contrast, alpha-lipoic acid (ALA) is a supplement with antioxidant and anti-inflammatory effects. This study aims to evaluate the overall effects of ALA supplementation by assessing its long-term systemic action on the vascular morphology of rats with induced diabetes. A total of 28 male rats were divided into 4 groups with seven animals each. For diabetes induction, two groups received streptozotocin. The animals in the lipoic and diabetic lipoic groups received ALA supplement. After 8 weeks the animals were anesthetized and blood collected was for hematological, biochemical and serological analyses. The thoracic aorta was removed, processed for paraffin and histological sections were stained for morphometric analysis. In diabetic groups, an improvement in hematological profile was observed, with platelet reduction in the diabetic lipoic group. ALA addition to the diet attenuated the negative effects in lipid profile; moreover, renal, hepatic and inflammatory parameters reduced or displayed values close to the values of the normal control. The anti-inflammatory effect of ALA was observed in diabetic animals, with a reduction of inflammatory citokines, accompanied by the improvement of morphological parameters in the aorta. In conclusion, long-term supplementation with ALA promoted systemic improvement, thus reducing the risk of vascular diseases. The changes in the renal and hepatic parameters without any negative impact in the hematological profile also show that ALA can be indicated as a low-risk prophylaxis or complementary therapy.
Collapse
Affiliation(s)
- Cristiane Simões Coelho Britto Ramos
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology. Biomedical Institute, Federal Fluminense University, Niteroi, Brazil
| | - Vivian Alves Pereira da Silva
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology. Biomedical Institute, Federal Fluminense University, Niteroi, Brazil
| | - Lanna Beatriz Neves Silva Corrêa
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology. Biomedical Institute, Federal Fluminense University, Niteroi, Brazil
| | - Renato de Souza Abboud
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology. Biomedical Institute, Federal Fluminense University, Niteroi, Brazil
| | - Gilson Teles Boaventura
- Laboratory of Experimental Nutrition. Department of Nutrition and Dietetics, Federal Fluminense University, Rio de Janeiro, Brazil
| | - Mauricio Alves Chagas
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology. Biomedical Institute, Federal Fluminense University, Niteroi, Brazil
| |
Collapse
|
5
|
Vajdi M, Mahmoudi-Nezhad M, Farhangi MA. An updated systematic review and dose-response meta-analysis of the randomized controlled trials on the effects of Alpha-Lipoic acid supplementation on inflammatory biomarkers. INT J VITAM NUTR RES 2021; 93:164-177. [PMID: 33827267 DOI: 10.1024/0300-9831/a000702] [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: 11/19/2022]
Abstract
Data about the effects of alpha-lipoic acid (ALA) supplementation on inflammatory markers are inconsistent. This systematic review and dose-response meta-analysis of randomized controlled trials was performed to summarize the effects of ALA supplementation on inflammatory markers such as C-reactive protein (CRP), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) in adults. A comprehensive literature search was conducted in the electronic databases of PubMed, Web of Science, ProQuest, Embase, and SCOPUS from inception to February 2020. Among all of the eligible studies, 20 articles were selected. The weighted mean differences (WMD) and 95% confidence intervals (CI) were calculated to evaluate the pooled effect size. Between-study heterogeneity was evaluated using Cochran's Q test and I2. Subgroup analysis was done to evaluate the potential sources of heterogeneity. The dose-response relationship was evaluated using fractional polynomial modeling. Twenty eligible studies with a total sample size of 947 participants were included in the current meta-analysis. The findings of the meta-analysis showed that ALA supplementation significantly reduced CRP (WMD: -0.69 mg/L, 95% CI: -1.13, -0.26, P=0.002), IL-6 (WMD: -1.83 pg/ml, 95% CI: -2.90, -0.76, P=0.001), and TNF-α concentrations (WMD: -0.45 pg/ml, 95% CI: -0.85, -0.04, P=0.032). No evidence of departure from linearity was observed between dose and duration of the ALA supplementation on serum CRP, IL-6 and TNF-α concentration. In subgroup analysis, ALA dosage, baseline concentrations of the parameter, sample size, and gender were considered as possible sources of heterogeneity. In summary, ALA supplementation improves inflammatory markers without any evidence of non-linear association to dose or duration of the trial.
Collapse
Affiliation(s)
- Mahdi Vajdi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | | |
Collapse
|
6
|
Mahmoudi-Nezhad M, Vajdi M, Farhangi MA. An updated systematic review and dose-response meta-analysis of the effects of α-lipoic acid supplementation on glycemic markers in adults. Nutrition 2020; 82:111041. [PMID: 33199187 DOI: 10.1016/j.nut.2020.111041] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 08/28/2020] [Accepted: 10/11/2020] [Indexed: 11/26/2022]
Abstract
This systematic review and dose-response meta-analysis was conducted to summarize data from available clinical trials on the effects of α-lipoic acid (ALA) supplementation on glycemic markers including glucose, hemoglobin A1c (HbA1c), insulin, homeostatic model assessment of insulin resistance (HOMA-IR), HOMA-β, and quantitative insulin check index in adults. A comprehensive literature search was conducted in the electronic databases of PubMed, Web of Science, ProQuest, Embase and SCOPUS from inception to February 2020. Among all of the eligible studies, 28 articles were selected. The weighted mean differences (WMD) and 95% confidence intervals (CI) were calculated to evaluate the pooled effect size. Between-study heterogeneity was evaluated using Cochran's Q test and I2. Subgroup analysis was done to evaluate the potential sources of heterogeneity. The dose-response relationship was evaluated using fractional polynomial modeling. Twenty eight eligible studies with a total sample size of 1,016 participants were included in the current meta-analysis. The findings of the meta-analysis showed that ALA supplementation significantly reduced insulin (WMD: -0.64; CI: -1.287 to 0.004, P = .04), HOMA-IR (WMD: -0.48; 95% CI: -0.79 to -0.16; P = .002). No change in glucose or HbA1C was reported. Moreover, the effect of ALA on insulin was duration-dependent (Pnon-linearity = 0.04). No evidence of departure from linearity was observed between dose and duration of the ALA supplementation on other markers. The subgrouping revealed that ALA dosage and duration of ALA supplementation, health status of participants, geographic locations and the studies' quality are possible sources of heterogeneity. In summary, ALA supplementation improves serum insulin and insulin resistance in a two-class and duration dependent non-linear analysis.
Collapse
Affiliation(s)
- Mahsa Mahmoudi-Nezhad
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Vajdi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | | |
Collapse
|
7
|
Ni Y, Wang J, Wang Z, Zhang X, Cao X, Ding Z. Alpha-lipoic acid inhibits proliferation and migration of human vascular endothelial cells through downregulating HSPA12B/VEGF signaling axis. Cell Stress Chaperones 2020; 25:455-466. [PMID: 32219685 PMCID: PMC7192994 DOI: 10.1007/s12192-020-01086-0] [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: 11/11/2019] [Revised: 02/20/2020] [Accepted: 03/05/2020] [Indexed: 11/30/2022] Open
Abstract
Endothelial cells play essential roles in angiogenesis. Heat shock protein A12B (HSPA12B), a novel member of the multigene Hsp70 family, expresses specifically in endothelial cells. Alpha-lipoic acid (LA) has been used for the treatment of human diabetic complications for more than 20 years. However, little is known whether LA impacts endothelial proliferation and migration. To address these questions, primary human umbilical vein endothelial cells (HUVECs) were isolated and treated with LA. We found that LA reduced viable HUVECs but not caused LDH leakage and nuclear condensation, suggesting an inhibitory effect of LA on HUVEC proliferation. We also noticed that LA impeded wound closure of HUVEC monolayers. The expressions of C-Myc, VEGF, and eNOS and phosphorylation of focal adhesion kinase were reduced by LA. Moreover, LA decreased the expression of heat shock protein A12B (HSPA12B). Notably, overexpression of HSPA12B in endothelial cells prevented the LA-induced loss of VEGF. More importantly, HSPA12B overexpression attenuated the LA-induced inhibition of endothelial proliferation and migration. Collectively, the results demonstrated that LA inhibited proliferative and migratory abilities in human vascular endothelial cells through the downregulation of the HSPA12B/VEGF signaling axis. The data suggest that besides the treatment in diabetic complications, LA might represent a viable therapeutic potential for human diseases that involve high angiogenic activities such as cancers.
Collapse
Affiliation(s)
- Yan Ni
- Department of Anesthesiology, First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China
| | - Juan Wang
- Department of Anesthesiology, First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China
| | - Zhuyao Wang
- Department of Geriatrics, Jiangsu Provincial Key Laboratory of Geriatrics, First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029, China
| | - Xiaojin Zhang
- Department of Geriatrics, Jiangsu Provincial Key Laboratory of Geriatrics, First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029, China
| | - Xiaofei Cao
- Department of Anesthesiology, First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China.
| | - Zhengnian Ding
- Department of Anesthesiology, First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China.
| |
Collapse
|
8
|
Bahar L, Sucu N, Eras N, Bagdatoglu OT, Yildirim M. Adrenomedullin expression in aortic artery wall of diabetic rats given alpha lipoic acid. Pharmacol Rep 2020; 72:912-921. [PMID: 32103464 DOI: 10.1007/s43440-020-00082-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 12/18/2019] [Accepted: 12/23/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND Diabetes mellitus (DM) is a major health problem predisposing to cardiovascular diseases. The aim of this study was to investigate the effects of alpha lipoic acid (ALA) on both the arterial wall of diabetic rats and the adrenomedullin (ADM) gene expression. METHODS Twenty-four Wistar Albino rats were divided into three groups as Control, DM + S, and DM + ALA. For DM model, a single dose of 40 mg/kg streptozotocin, for DM + ALA group, 100 mg/kg/day/4 weeks was administered. Hematoxylin & Eosin (H&E) staining was done and vascular endothelial growth factor (VEGF) was detected by immunohistochemical analysis in the artery wall. Total damage score of vessel wall (endothelial cell damage, media layer smooth muscle cell damage, and internal elastic lamina damage) and H score (immunoreactivity intensity) were calculated. Expression of ADM gene was measured by qRT-PCR. RESULTS In DM + S group, Total damage score of vessel wall were detected by light microscopy. There were statistically significant differences between the groups Control/DM + S and DM + S/DM + ALA in terms of the vessel total damage score and H score (p < 0.005). ADM expression was increased threefold in both DM + S and DM + ALA groups compared to the control group (p < 0.05). CONCLUSIONS ALA may have positive effect on the vessel damage in diabetic rats. However, no significant decrease in ADM expression levels was observed in diabetic rats after ALA administration and we considered that the protective effect of ALA is independent of adrenomedullin. Further studies with different doses and durations of ALA administrations are required to investigate the changes in ADM expression.
Collapse
Affiliation(s)
- Leyla Bahar
- Vocational School of Health Services, Mersin University, Ciftlikkoy Campuse, 33343 Yenisehir, Mersin, Turkey.
| | - Nehir Sucu
- Department of Cardiovascular Surgery, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Nazan Eras
- Department of Medical Genetics, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Ozlen Tubay Bagdatoglu
- Vocational School of Health Services, Mersin University, Ciftlikkoy Campuse, 33343 Yenisehir, Mersin, Turkey
| | - Metin Yildirim
- Department of Biochemistry, Faculty of Pharmacy, Mersin University, Mersin, Turkey
| |
Collapse
|
9
|
Jayaraj P, Shavi GV, Srinivasan AK, Raghavendra R, Sivaramakrishna A, Desikan R. A pre-formulation strategy for the liposome encapsulation of new thioctic acid conjugates for enhanced chemical stability and use as an efficient drug carrier for MPO-mediated atherosclerotic CVD treatment. NEW J CHEM 2020. [DOI: 10.1039/c9nj05258e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lipoyl-apocynin and lipoyl-sesamol are bio-active conjugates of thioctic acid, synthesized using a benign chemical approachviathe combination of thioctic acid and the powerful bio-phytonutrients, apocynin and sesamol, respectively.
Collapse
Affiliation(s)
- Premkumar Jayaraj
- Department of Chemistry
- School of Advanced Sciences
- Vellore Institute of Technology
- Vellore
- India
| | - Gopal Venkatesh Shavi
- South Easter Applied Material Research Centre
- Waterford Institute of Technology
- Ireland
| | | | - Ramesh Raghavendra
- South Easter Applied Material Research Centre
- Waterford Institute of Technology
- Ireland
| | - Akella Sivaramakrishna
- Department of Chemistry
- School of Advanced Sciences
- Vellore Institute of Technology
- Vellore
- India
| | - Rajagopal Desikan
- Department of Chemistry
- School of Advanced Sciences
- Vellore Institute of Technology
- Vellore
- India
| |
Collapse
|
10
|
Inactivation of Aldehyde Dehydrogenase by Disulfiram in the Presence and Absence of Lipoic Acid or Dihydrolipoic Acid: An in Vitro Study. Biomolecules 2019; 9:biom9080375. [PMID: 31426424 PMCID: PMC6723463 DOI: 10.3390/biom9080375] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 08/02/2019] [Accepted: 08/13/2019] [Indexed: 01/22/2023] Open
Abstract
The inhibition of aldehyde dehydrogenase (ALDH) by disulfiram (DSF) in vitro can be prevented and/or reversed by dithiothreitol (DTT), which is a well-known low molecular weight non-physiological redox reagent commonly used in laboratory experiments. These observations inspired us to ask the question whether the inhibition of ALDH by DSF can be preserved or abolished also by dihydrolipoic acid (DHLA), which is the only currently known low molecular weight physiological dithiol in the body of humans and other animals. It can even be metaphorized that DHLA is an "endogenous DTT". Lipoic acid (LA) is the oxidized form of DHLA. We investigated the inactivation of ALDH derived from yeast and rat liver by DSF in the presence or absence of LA or DHLA. The results clearly show that DHLA is able both to restore and protect ALDH activity blocked by DSF. The proposed mechanism is discussed.
Collapse
|
11
|
Di Nicuolo F, D'Ippolito S, Castellani R, Rossi ED, Masciullo V, Specchia M, Mariani M, Pontecorvi A, Scambia G, Di Simone N. Effect of alpha-lipoic acid and myoinositol on endometrial inflammasome from recurrent pregnancy loss women. Am J Reprod Immunol 2019; 82:e13153. [PMID: 31148259 DOI: 10.1111/aji.13153] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 04/05/2019] [Accepted: 05/24/2019] [Indexed: 12/22/2022] Open
Abstract
PROBLEM A significant increased expression/activation of one of the most well-characterized inflammasomes, the NAcht leucine-rich-repeat protein-3 (NALP-3), in the endometrium from idiopathic recurrent pregnancy loss women (RPL) has been previously found by our research group. We therefore, suggested this event as being one of the molecular mechanisms altering endometrial inflammatory status during early pregnancy. In the present research, we attempt to investigate whether molecules with anti-inflammatory activity, alpha-lipoic acid (ALA), and/or myoinositol affect the endometrial NALP-3 expression and activation. METHOD OF STUDY Women with a history of idiopathic RPL (n = 30) were included in the study and compared to a control group (n = 15). Endometrial tissues were collected by hysteroscopy during the mid-luteal phase. RPL women underwent a three-month prescription of tablets containing ALA plus myoinositol (Sinopol® ). After treatment, hysteroscopic biopsies were repeated in RPL patients. Inflammasome expression was evaluated by immunohistochemical and Western blot analysis. NALP-3 activation was studied by quantifying the secretion of both caspase-1 and interleukin (IL)-1ß and IL-18 through ELISA. In ex vivo experiments, the effects of each molecule on endometrial inflammasome were studied. RESULTS Sinopol® significantly reduced the RPL endometrial inflammasome expression and activation. ALA, but not myoinositol, significantly reduced the endometrial inflammasome expression and activity. CONCLUSION Our data suggest a role for ALA on RPL inflammasome. Understanding the mechanisms involved in RPL and the observation that specific molecules are able to interfere with such complex at the endometrium might provide new rational design approaches to a personalized evaluation of endometrial status and, ultimately, a targeted medicine.
Collapse
Affiliation(s)
- Fiorella Di Nicuolo
- Paolo VI International Scientific Institute, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Silvia D'Ippolito
- U.O.C. di Ostetricia e Patologia Ostetrica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italia.,Istituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Roberta Castellani
- Istituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Esther Diana Rossi
- U.O.C. di Anatomia Patologica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italia
| | - Valeria Masciullo
- Istituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, Roma, Italia.,U.O.C. di Ginecologia Oncologica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italia
| | - Monia Specchia
- Istituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Marco Mariani
- Istituto di Sanità Pubblica, Sezione di Igiene, Università Cattolica Del Sacro Cuore, Roma, Italia
| | - Alfredo Pontecorvi
- Paolo VI International Scientific Institute, Università Cattolica del Sacro Cuore, Roma, Italia.,U.O.C di Endocrinologia e Diabetologia, Dipartimento di Scienze Gastroenterologiche, Endocrino-Metaboliche e Nefro-Urologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italia.,Istituto di Patologia Medica, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Giovanni Scambia
- Istituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, Roma, Italia.,U.O.C. di Ginecologia Oncologica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italia
| | - Nicoletta Di Simone
- U.O.C. di Ostetricia e Patologia Ostetrica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italia.,Istituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, Roma, Italia
| |
Collapse
|
12
|
Rahimlou M, Asadi M, Banaei Jahromi N, Mansoori A. Alpha-lipoic acid (ALA) supplementation effect on glycemic and inflammatory biomarkers: A Systematic Review and meta- analysis. Clin Nutr ESPEN 2019; 32:16-28. [PMID: 31221283 DOI: 10.1016/j.clnesp.2019.03.015] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 02/08/2019] [Accepted: 03/26/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND & AIMS Several randomized clinical trials (RCTs) have investigated the effect of Alpha - Lipoic Acid (ALA) supplementation on metabolic parameters, with conflicting results. Therefore, the present study assessed the effect of ALA on some glycemic and inflammatory parameters. METHODS A comprehensive literature search was conducted up from inception to July 2018 on PubMed, Scopus, Cochrane databases, Google Scholar, ProQuest, Web of Science, and Embase. From among eligible trials, 41 articles were selected for the meta-analysis. Two reviewers independently assessed the risk of bias and extracted data from the included studies. Meta-analyses using the random-effects model were performed to analyze the data. RESULTS Based on the Cochrane risk of bias tool, 19 articles had a good quality, 16 trials had a poor quality and 6 trials had a fair quality. The results demonstrated the significant effect of ALA on Fasting Blood Sugar (FBS) (weighted mean difference (WMD)) = -6.57, 95% confidence interval (CI: -11.91 to -1.23, P = 0.016), Hemoglobin A1c (HbA1c) (WMD = -0.35, 95% CI: -0.55 to -0.15, P = 0.004), Tumor Necrosis Factor Alpha (TNF-α) (WMD = -1.57, 95% CI: -2.29 to -0.85, P < 0.05), Interleukin 6 levels (IL-6) (WMD = -1.15, 95% CI: -1.58 to -0.72, P < 0.001), and C-reactive protein (CRP) (WMD = -0.31, 95% CI: -0.47 to -0.16, P > 0.001). No effect was detected for ALA on insulin and the homeostatic model assessment of insulin resistance (HOMA-IR). CONCLUSIONS These findings suggest that ALA is a viable supplement to improve some of the glycemic and inflammatory biomarkers.
Collapse
Affiliation(s)
- Mehran Rahimlou
- Department of Nutrition, School of Para-Medical Sciences, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran.
| | - Maryam Asadi
- Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Nasrin Banaei Jahromi
- Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Anahita Mansoori
- Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| |
Collapse
|
13
|
Silva C, Sampaio-Pinto V, Andrade S, Rodrigues I, Costa R, Guerreiro S, Carvalho E, Pinto-do-Ó P, Nascimento DS, Soares R. Establishing a Link between Endothelial Cell Metabolism and Vascular Behaviour in a Type 1 Diabetes Mouse Model. Cell Physiol Biochem 2019; 52:503-516. [PMID: 30897318 PMCID: PMC7453785 DOI: 10.33594/000000036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 01/17/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND/AIMS Vascular complications contribute significantly to the extensive morbidity and mortality rates observed in people with diabetes. Despite well known that the diabetic kidney and heart exhibit imbalanced angiogenesis, the mechanisms implicated in this angiogenic paradox remain unknown. In this study, we examined the angiogenic and metabolic gene expression profile (GEP) of endothelial cells (ECs) isolated from a mouse model with type1 diabetes mellitus (T1DM). METHODS ECs were isolated from kidneys and hearts of healthy and streptozocin (STZ)-treated mice. RNA was then extracted for molecular studies. GEP of 84 angiogenic and 84 AMP-activated Protein Kinase (AMPK)-dependent genes were examined by microarrays. Real time PCR confirmed the changes observed in significantly altered genes. Microvessel density (MVD) was analysed by immunohistochemistry, fibrosis was assessed by the Sirius red histological staining and connective tissue growth factor (CTGF) was quantified by ELISA. RESULTS The relative percentage of ECs and MVD were increased in the kidneys of T1DM animals whereas the opposite trend was observed in the hearts of diabetic mice. Accordingly, the majority of AMPK-associated genes were upregulated in kidneys and downregulated in hearts of these animals. Angiogenic GEP revealed significant differences in Tgfβ, Notch signaling and Timp2 in both diabetic organs. These findings were in agreement with the angiogenesis histological assays. Fibrosis was augmented in both organs in diabetic as compared to healthy animals. CONCLUSION Altogether, our findings indicate, for the first time, that T1DM heart and kidney ECs present opposite metabolic cues, which are accompanied by distinct angiogenic patterns. These findings enable the development of innovative organ-specific therapeutic strategies targeting diabetic-associated vascular disorders.
Collapse
Affiliation(s)
- Carolina Silva
- Department of Biomedicine, Unit of Biochemistry, Faculty of Medicine of the University of Porto, Porto, Portugal.,i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Vasco Sampaio-Pinto
- i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Instituto Nacional de Engenharia Biomédica, Universidade de Porto, Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Sara Andrade
- Department of Biomedicine, Unit of Biochemistry, Faculty of Medicine of the University of Porto, Porto, Portugal.,i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal
| | - Ilda Rodrigues
- Department of Biomedicine, Unit of Biochemistry, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Raquel Costa
- Department of Biomedicine, Unit of Biochemistry, Faculty of Medicine of the University of Porto, Porto, Portugal.,i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Susana Guerreiro
- Department of Biomedicine, Unit of Biochemistry, Faculty of Medicine of the University of Porto, Porto, Portugal.,i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Faculdade de Ciências da Nutrição e Alimentação, Universidade do Porto, Porto, Portugal
| | - Eugenia Carvalho
- Center of Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,The Portuguese Diabetes Association, Lisbon, Portugal.,Department of Geriatrics, University of Arkansas for Medical Sciences, Little Rock, United States
| | - Perpétua Pinto-do-Ó
- i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Instituto Nacional de Engenharia Biomédica, Universidade de Porto, Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Diana S Nascimento
- i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Instituto Nacional de Engenharia Biomédica, Universidade de Porto, Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Raquel Soares
- Department of Biomedicine, Unit of Biochemistry, Faculty of Medicine of the University of Porto, Porto, Portugal.,i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal,
| |
Collapse
|
14
|
Topsakal S, Ozmen O, Ozgocmen M. Effects of alpha-lipoic acid on high fructose induced hepatic pathology. Biotech Histochem 2019; 94:271-276. [DOI: 10.1080/10520295.2018.1552019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Affiliation(s)
- S. Topsakal
- Medical Faculty, Department of Endocrinology and Metabolism, Pamukkale University, Denizli, Turkey
| | - O. Ozmen
- Faculty of Veterinary Medicine, Department of Pathology, Mehmet Akif Ersoy University, Burdur, Turkey
| | - M. Ozgocmen
- Faculty of Medicine, Department of Histology and Embryology, Suleyman Demirel University, Isparta, Turkey
| |
Collapse
|
15
|
Hosseinpour-Arjmand S, Amirkhizi F, Ebrahimi-Mameghani M. The effect of alpha-lipoic acid on inflammatory markers and body composition in obese patients with non-alcoholic fatty liver disease: A randomized, double-blind, placebo-controlled trial. J Clin Pharm Ther 2018; 44:258-267. [DOI: 10.1111/jcpt.12784] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 11/02/2018] [Accepted: 11/18/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Sonya Hosseinpour-Arjmand
- Student Research Committee, School of Nutrition and Food Sciences; Tabriz University of Medical Sciences; Tabriz Iran
| | - Farshad Amirkhizi
- Department of Nutrition, School of Public Health; Zabol University of Medical Sciences; Zabol Iran
| | - Mehrangiz Ebrahimi-Mameghani
- Nutrition Research Center, School of Nutrition and Food Sciences; Tabriz University of Medical Sciences; Tabriz Iran
| |
Collapse
|
16
|
Fahmy UA, Aljaeid BM. Tadalafil Transdermal Delivery with Alpha-lipoic Acid Self Nanoemulsion for Treatment of Erectile Dysfunction by Diabetes Mellitus. INT J PHARMACOL 2018. [DOI: 10.3923/ijp.2018.945.951] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
17
|
Aljaeid BM, El-Moselhy MA. Loading of Gentamicin and Alpha Lipoic Acid on a Biodegradable Polymer for More Effective and Less Nephrotoxic Formula. INT J PHARMACOL 2018. [DOI: 10.3923/ijp.2018.796.801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
18
|
Dworacka M, Chukanova G, Iskakova S, Kurmambayev Y, Wesołowska A, Frycz BA, Jagodziński PP, Dworacki G. New arguments for beneficial effects of alpha-lipoic acid on the cardiovascular system in the course of type 2 diabetes. Eur J Pharm Sci 2018; 117:41-47. [PMID: 29427700 DOI: 10.1016/j.ejps.2018.02.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 01/30/2018] [Accepted: 02/06/2018] [Indexed: 12/29/2022]
Abstract
PURPOSE Alpha-lipoic acid (ALA), widely known as an antioxidant, modifies also serum levels of angiogenic factors in type 2 diabetic patients. These pharmacological activities may influence the status of the cardiovascular system. Taking into consideration that diabetes is related to the increased cardiovascular risk we investigated several effects of ALA on angiogenic factors in the myocardium and in the aortal wall using a rat model of type 2 diabetes. METHODS Diabetes was induced in Wistar rats by a fat-rich diet and by intraperitoneal injection of a small dose of streptozotocin (30 mg/kg). Animals were divided into 3 groups: ALA-treated type 2 diabetes rat model, placebo-treated type 2 diabetes rat model and placebo-treated non-diabetic rats. ALA was administered orally once a day, 20 mg/kg, for 8 consecutive weeks. mRNA VEGF, VEGF-R1 and VEGF-R2 expression was measured in the myocardium and the aortal wall, simultaneously with circulating VEGF and circulating endothelial cells (cEC) and endothelial progenitor cells (cEPC). RESULTS ALA induced pro-angiogenic effect in the myocardium of rats with diabetes increasing mRNA VEGF expression and decreasing mRNA VEGFR-1 expression, while in the aortal wall ALA increased mRNA VEGFR-2 and VEGFR-1 expression. cVEGF in the ALA-treated group was higher comparing to both control groups. It was revealed that cEC percentage in the ALA-treated group was decreased with no effect on the percentage of cEPC. CONCLUSIONS In summary, the current data provide novel findings about potential beneficial effects of ALA on angiogenic factors in the cardiovascular system, especially on myocardium, in the course of type 2 diabetes.
Collapse
Affiliation(s)
- Marzena Dworacka
- Department of Pharmacology, Poznan University of Medical Sciences, Rokietnicka 5d, 60-805 Poznań, Poland.
| | - Galina Chukanova
- Department of Pharmacology, West Kazakhstan Marat Ospanov State Medical University, Mareshev str. 68, Aktobe 030019, Kazakhstan.
| | - Saule Iskakova
- Department of Pharmacology, West Kazakhstan Marat Ospanov State Medical University, Mareshev str. 68, Aktobe 030019, Kazakhstan.
| | - Yergen Kurmambayev
- Department of Pharmacology, West Kazakhstan Marat Ospanov State Medical University, Mareshev str. 68, Aktobe 030019, Kazakhstan.
| | - Anna Wesołowska
- Department of Pharmacology, Poznan University of Medical Sciences, Rokietnicka 5d, 60-805 Poznań, Poland.
| | - Bartosz A Frycz
- Department of Biochemistry and Molecular Biology, Poznań University of Medical Sciences, Święcickiego 6, 60-781 Poznań, Poland.
| | - Paweł P Jagodziński
- Department of Biochemistry and Molecular Biology, Poznań University of Medical Sciences, Święcickiego 6, 60-781 Poznań, Poland.
| | - Grzegorz Dworacki
- Department of Clinical Immunology, Poznań University of Medical Sciences, Rokietnicka 5a, 60-805 Poznań,Poland.
| |
Collapse
|
19
|
Qiao YC, Shen J, He L, Hong XZ, Tian F, Pan YH, Liang L, Zhang XX, Zhao HL. Changes of Regulatory T Cells and of Proinflammatory and Immunosuppressive Cytokines in Patients with Type 2 Diabetes Mellitus: A Systematic Review and Meta-Analysis. J Diabetes Res 2016; 2016:3694957. [PMID: 27777959 PMCID: PMC5061980 DOI: 10.1155/2016/3694957] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 08/09/2016] [Accepted: 08/30/2016] [Indexed: 12/18/2022] Open
Abstract
Objective. The aim of this study was to investigate the changes of regulatory T cells (Treg), interleukin-6 (IL-6), IL-10, transforming growth factor-β (TGF-β), and tumor necrosis factor-alpha (TNF-α) in patients with type 2 diabetes mellitus (T2DM). Methods. We performed a comprehensive search up to July 2016 for all clinical studies about the changes of Treg, IL-6, IL-10, IL-17, TGF-β, and TNF-α in T2DM patients versus healthy controls. Results. A total of 91 articles (5642 cases and 7378 controls) were included for this meta-analysis. Compared with the controls (all p < 0.001), the patients had increased serum levels of IL-6, TGF-β, and TNF-α but decreased the percentage of peripheral CD4+CD25+Foxp3+Treg and serum IL-10 level. Furthermore, the percentage of peripheral CD4+CD25+Foxp3+Treg (p < 0.001) and serum IL-10 level (p = 0.033) were significantly lower in the patients with complication and in the patients without complication, respectively. No significant changes about the percentage of CD4+CD25+Treg (p = 0.360) and serum IL-17 level (p = 0.459) were found in T2DM patients. Conclusions. T2DM patients have decreased the percentage of peripheral CD4+CD25+Foxp3+Treg and levels of serum IL-10 but elevated serum levels of IL-6, TGF-β, and TNF-α. Presence of diabetic complications further lowers the peripheral CD4+CD25+Foxp3+Treg number.
Collapse
Affiliation(s)
- Yong-chao Qiao
- Diabetic Systems Medicine, Guangxi Key Laboratory of Excellence, Guilin Medical University, Guilin 541004, China
- Department of Immunology, School of Basic Medical Sciences, Central South University, Changsha, Hunan 410078, China
| | - Jian Shen
- Diabetic Systems Medicine, Guangxi Key Laboratory of Excellence, Guilin Medical University, Guilin 541004, China
| | - Lan He
- Department of Microbiology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Xue-zhi Hong
- Diabetic Systems Medicine, Guangxi Key Laboratory of Excellence, Guilin Medical University, Guilin 541004, China
| | - Fang Tian
- Department of Immunology, School of Basic Medical Sciences, Central South University, Changsha, Hunan 410078, China
| | - Yan-hong Pan
- Diabetic Systems Medicine, Guangxi Key Laboratory of Excellence, Guilin Medical University, Guilin 541004, China
| | - Ling Liang
- Diabetic Systems Medicine, Guangxi Key Laboratory of Excellence, Guilin Medical University, Guilin 541004, China
| | - Xiao-xi Zhang
- Diabetic Systems Medicine, Guangxi Key Laboratory of Excellence, Guilin Medical University, Guilin 541004, China
- Department of Immunology, Faculty of Basic Medicine, Guilin Medical University, Guilin 541004, China
| | - Hai-lu Zhao
- Diabetic Systems Medicine, Guangxi Key Laboratory of Excellence, Guilin Medical University, Guilin 541004, China
- Department of Immunology, School of Basic Medical Sciences, Central South University, Changsha, Hunan 410078, China
- Department of Immunology, Faculty of Basic Medicine, Guilin Medical University, Guilin 541004, China
- *Hai-lu Zhao:
| |
Collapse
|
20
|
Scaramuzza A, Giani E, Redaelli F, Ungheri S, Macedoni M, Giudici V, Bosetti A, Ferrari M, Zuccotti GV. Alpha-Lipoic Acid and Antioxidant Diet Help to Improve Endothelial Dysfunction in Adolescents with Type 1 Diabetes: A Pilot Trial. J Diabetes Res 2015; 2015:474561. [PMID: 26171398 PMCID: PMC4478382 DOI: 10.1155/2015/474561] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 05/30/2015] [Accepted: 06/01/2015] [Indexed: 01/22/2023] Open
Abstract
After evaluating the prevalence of early endothelial dysfunction, as measured by means of reactive hyperemia in adolescents with type 1 diabetes, we started a 6-month, double-blind, randomized trial to test the efficacy of an antioxidant diet (± alpha-lipoic acid supplementation) to improve endothelial dysfunction. Seventy-one children and adolescents, ages 17 ± 3.9 yrs, with type 1 diabetes since 9.5 ± 5.3 yrs, using intensified insulin therapy, were randomized into 3 arms: (a) antioxidant diet 10.000 ORAC + alpha-lipoic acid; (b) antioxidant diet 10.000 ORAC + placebo; (c) controls. BMI, blood pressure, fasting lipid profile, HbA1c, insulin requirement, dietary habits, and body composition were determined in each patient. An antioxidant diet significantly improved endothelial dysfunction when supplemented with alpha-lipoic acid, unlike diet with placebo or controls. A significant reduction in bolus insulin was also observed. We speculate that alpha-lipoic acid might have an antioxidant effect in pediatric diabetes patients by reducing insulin.
Collapse
Affiliation(s)
- Andrea Scaramuzza
- Pediatric Diabetology, Metabolic Diseases & Nutrition, Department of Pediatrics, Azienda Ospedaliera, University of Milano, “Ospedale Luigi Sacco”, 20157 Milan, Italy
- *Andrea Scaramuzza:
| | - Elisa Giani
- Department of Pediatrics, University of Milano, “Ospedale dei Bambini Vittore Buzzi”, 20154 Milan, Italy
| | - Francesca Redaelli
- Department of Pediatrics, University of Milano, “Ospedale dei Bambini Vittore Buzzi”, 20154 Milan, Italy
| | - Saverio Ungheri
- Department of Pediatrics, University of Milano, “Ospedale dei Bambini Vittore Buzzi”, 20154 Milan, Italy
| | - Maddalena Macedoni
- Department of Pediatrics, University of Milano, “Ospedale dei Bambini Vittore Buzzi”, 20154 Milan, Italy
| | - Valentina Giudici
- Department of Pediatrics, University of Milano, “Ospedale dei Bambini Vittore Buzzi”, 20154 Milan, Italy
| | - Alessandra Bosetti
- Pediatric Diabetology, Metabolic Diseases & Nutrition, Department of Pediatrics, Azienda Ospedaliera, University of Milano, “Ospedale Luigi Sacco”, 20157 Milan, Italy
| | - Matteo Ferrari
- Pediatric Diabetology, Metabolic Diseases & Nutrition, Department of Pediatrics, Azienda Ospedaliera, University of Milano, “Ospedale Luigi Sacco”, 20157 Milan, Italy
| | - Gian Vincenzo Zuccotti
- Department of Pediatrics, University of Milano, “Ospedale dei Bambini Vittore Buzzi”, 20154 Milan, Italy
| |
Collapse
|