Effect Of Taurine Research Articles

The Impact of Taurine on Obesity-Induced Diabetes Mellitus: Mechanisms Underlying Its Effect.

This review explores the potential benefits of taurine in ameliorating the metabolic disorders of obesity and type 2 diabetes (T2D), highlighting the factors that bridge these associations. Relevant articles and studies were reviewed to conduct a comprehensive analysis of the relationship between obesity and the development of T2D and the effect of taurine on those conditions. The loss of normal β-cell function and development of T2D are associated with obesity-derived insulin resistance. The occurrence of diabetes has been linked to the low bioavailability of taurine, which plays critical roles in normal β-cell function, anti-oxidation, and anti-inflammation. The relationships among obesity, insulin resistance, β-cell dysfunction, and T2D are complex and intertwined. Taurine may play a role in ameliorating these metabolic disorders through different pathways, but further research is needed to fully understand its effects and potential as a therapeutic intervention.

Taurine promotes muscle fiber type transformation through CaN/NFATc1 signaling in porcine myoblasts.

This study investigated the effect of taurine (TAU) on the muscle fiber type transformation in porcine myoblasts and its molecular mechanisms. The findings revealed that TAU augmented the protein expression of slow MyHC and the enzyme activities of oxidative metabolism markers like malate dehydrogenase and succinic dehydrogenase. Conversely, it curtailed the expression of fast MyHC and glycolytic metabolism enzyme activity of lactate dehydrogenase. Moreover, TAU elevated the expression of genes associated with oxidative fiber while diminishing the expression of those linked to glycolytic fibers, suggesting that TAU promoted the muscle fiber type transformation from glycolytic fiber to oxidative fiber. Additionally, TAU notably enhanced the expression of key molecules of calcineurin (CaN)/nuclear factor of activated T cells c1 (NFATc1) signaling and the CaN activity in porcine myoblasts. However, CaN inhibitor cyclosporine A abolished these effects induced by TAU. Our results indicated that TAU regulated the muscle fiber type transformation from glycolytic to oxidative fiber by activation of CaN/NFATc1 signaling.

Taurine Protects Doxorubicin-Induced Hepatotoxicity via Its Membrane-Stabilizing Effect in Rats.

Doxorubicin (dox) is a chemotherapeutic agent widely used against various tumors. However, the clinical use of this agent is limited due to various organ toxicities. Taurine is an intracellular free β-amino acid with antioxidant properties. The present study investigated the protective mechanism of taurine on dox-induced hepatotoxicity. In total, 31 male Sprague-Dawley rats were used in the study. The control group received intraperitoneal (i.p.) 0.9% NaCl alone for 14 days; the taurine (Tau) group received i.p. taurine 150 mg/kg body weight/day for 14 days; the dox group received dox on days 12, 13, and 14 at a cumulative dose of 25 mg/kg body weight/3 days; and the tau+dox group received taurine and dox together at the same dose and through the same route. On day 15, biochemical evaluations were performed on blood samples taken from the left ventricle followed by histological examinations on liver samples. Dox was found to increase liver function enzymes and tissue protein carbonyl levels, causing congestion and tissue damage, thereby leading to dysfunction. Tau was found to histologically preserve the liver morphology without showing any corrective effect on oxidative stress parameters. These findings suggest that the membrane-stabilizing effect of taurine may be more effective than its radical scavenging activity in preventing dox-induced toxicity. Taurine can prevent doxorubicin-induced hepatotoxicity through non-antioxidant pathways.

The renoprotective effects of taurine against diabetic nephropathy via the p38 MAPK and TGF-β/Smad2/3 signaling pathways.

Diabetic nephropathy (DN), a severe diabetes complication, causes kidney morphological and structural changes due to extracellular matrix accumulation. This accumulation is caused mainly by oxidative stress. Semi-essential amino acid derivative taurine has powerful antioxidant and antifibrotic effects. The aim of this study was to investigate the renoprotective effects of taurine through its possible roles in oxidative stress, extracellular matrix proteins, and the signaling pathways associated with the accumulation of extracellular matrix proteins in DN rats. 29 Wistar albino rats were randomly separated into control, taurine, diabetes, and diabetes + taurine groups. Diabetes animals were injected 45mg/kg streptozosine. Taurine is given by adding to drinking water as 1% (w/v). Urine, serum, and kidney tissue were collected from rats for biochemical and histological analysis after 12weeks. According to the studies, taurine significantly reduces the levels of malondialdehyde (MDA), total oxidant status (TOS), and protein expression of NADPH oxidase 4 (NOX4) that increase in diabetic kidney tissue. Also, decreased superoxide dismutase (SOD) activity levels significantly increased with taurine in diabetic rats. Moreover, increased mRNA and protein levels of fibronectin decreased with taurine. The matrix metalloproteinase (MMP)-2 and MMP-9 activities and their mRNA levels increased significantly, and this increase was significantly summed with taurine. There was a decrease in mRNA expression of Extracellular matrix metalloproteinase inducer (EMMPRIN). Taurine significantly increased this decrease. Diabetes increased mRNA expressions of transforming growth factor (TGF)-β and Smad2/3. Taurine significantly reduced this induction. TGF-β protein expression, p38, and Smad2/3 activations were also inhibited, but taurine was suppressed significantly. All these findings indicate that taurine may be an effective practical strategy to prevent renal diabetic injury.

Functional Role of Taurine in Aging and Cardiovascular Health: An Updated Overview.

Taurine, a naturally occurring sulfur-containing amino acid, has attracted significant attention in recent years due to its potential health benefits. Found in various foods and often used in energy drinks and supplements, taurine has been studied extensively to understand its impact on human physiology. Determining its exact functional roles represents a complex and multifaceted topic. We provide an overview of the scientific literature and present an analysis of the effects of taurine on various aspects of human health, focusing on aging and cardiovascular pathophysiology, but also including athletic performance, metabolic regulation, and neurological function. Additionally, our report summarizes the current recommendations for taurine intake and addresses potential safety concerns. Evidence from both human and animal studies indicates that taurine may have beneficial cardiovascular effects, including blood pressure regulation, improved cardiac fitness, and enhanced vascular health. Its mechanisms of action and antioxidant properties make it also an intriguing candidate for potential anti-aging strategies.

Taurine and N-acetylcysteine reverse reproductive and neuroendocrine dysfunctions in levetiracetam-treated epileptic male rats

ABSTRACT Reproductive neuroendocrine dysfunction is becoming common among patients with epilepsy, Notably, possible indication of taurine and N-acetylcysteine (NAC) in the management of reproductive impairment has increased over the years. However, scientific evidence to supplement our understanding of the impact of taurine and NAC in protecting reproductive neuroendocrine cells is lacking. Hence, this study aimed to investigate the possible effects of taurine and NAC on levetiracetam-induced reproductive neuroendocrine dysfunction in epileptic rats. The study was done in two experimental protocols: drug alone and reversal. In the drug-alone protocol, rats in groups 1–6 received treatment orally for 21 days, respectively. In the reversal-protocol, the animals in group 1, received saline (2.5 mL/kg) and served as normal control, while epilepsy was induced in animals in groups 2–5, after which groups 3–5 received levetiracetam (150 mg/kg), levetiracetam (150 mg/kg) + NAC (100 mg/kg), levetiracetam (150 mg/kg) + taurine (150 mg/kg) respectively for 14 days. Pilocarpine alone or in combination with levetiracetam significantly decreased neuro-endocrine related factors, hormonal profile, and spermatogenesis, whereas treatment with NAC and taurine reversed the effects induced by pilocarpinethrough neuro-endocrine-related factors and hormonal modulation mechanism.

Taurine accelerates the synthesis of ceramides and hyaluronic acid in cultured epidermis and dermal fibroblasts.

Taurine is a sulfur-containing amino acid derivative that can be found in the majority of mammalian tissues. Taurine is also present in the skin and is involved in maintaining skin homeostasis by exerting osmoregulatory and antioxidant effects. Previous studies have indicated that taurine treatment is effective against age-, ultraviolet- or detergent-induced skin dysfunction. To determine the mechanism responsible for the beneficial actions of taurine in the skin, the present study aimed to evaluate the effects of taurine on epidermal components (ceramides and filaggrin) and on the dermal extracellular matrix, in three-dimensionally (3D) cultured epidermis and dermal fibroblasts, respectively. These cells were cultured in the presence of 3-50 mM taurine, and cells or culture medium were collected for analysis. The effects of taurine on transepidermal water loss (TEWL) in the skin and the expression of inflammatory cytokines, including IL-1α, IL-1β and IL-1 receptor antagonist, were investigated in acetone-treated 3D-cultured epidermis using a Tewameter and reverse transcription-quantitative PCR (RT-qPCR), respectively. The mRNA expression levels of MMP-1 and hyaluronic acid (HA) production were measured in skin dermal fibroblasts using RT-qPCR and ELISA, respectively. Taurine was found to suppress acetone-induced elevation in TEWL in 3D-cultured epidermis. Taurine also stimulated the mRNA expression of ceramide synthase 4 and filaggrin, a major structural protein in the stratum corneum, in 3D-cultured epidermis. In skin dermal fibroblasts, taurine inhibited the IL-1α-stimulated mRNA and protein expression of MMP-1. In addition, taurine treatment increased HA synthase-2 mRNA expression and in turn HA production. Results from the present study suggest that the protective effect of taurine on the skin is associated with the enhancement of epidermal barrier component expression and modulation of dermal extracellular matrix metabolism.

The potential immuno-stimulating effect of curcumin, piperine, and taurine combination in hepatocellular carcinoma; a pilot study

BackgroundThis is a phase II clinical trial to investigate the immunotherapeutic effect of Curcumin, Piperine, and Taurine (CPT) combination in hepatocellular carcinoma (HCC).MethodsTwenty-six HCC patients aged (50–80 years) were recruited for administration of a daily dose of 5 g of curcumin, 50 mg of piperine, and 500 mg of taurine divided into three doses for successive 3 months. The three components (CPT) were prepared in one capsule. Patients were assessed after each month (cycle) for the plasma levels of CD4, CD8, CD25, Interleukins-2 (IL-2), IL-6, IL-12, Interferon-gamma (IFN- γ), Lactate dehydrogenase (LDH), and Vascular endothelial growth factor (VEGF), FOXP3 mRNA, and miRNA 21.ResultsThere was a significant increase in the plasma levels of CD4 and CD8, while a significant decrease in the CD25 level after the second and third cycles compared to the baseline level [P < 0.001 for both]. Also, there was a significant increase in the plasma levels of IL-2, IL-12, and IFN-γ [ P = 0.001, P = 0.006, and P = 0.029; respectively], while there was a significant decrease in IL-6, VEGF-α, LDH, and Alpha-fetoprotein (AFP) after CPT administration compared to the baseline levels [P < 0.001, P < 0.001, P = 0.020, and P = 0.004; respectively].The expression level of miRNA-21 was significantly decreased after CPT administration compared to the baseline level [5.5±0.88, 4.1±0.78, 3±0.75, and 2.5±0.76; respectively, P<0.001]. Though there was a noticeable decrease in the FOXP3 expression after each cycle, however, it didn’t reach a significant level [5.3±0.8, 4.2±0.76, 3.2±0.67, and 2.5±0.79; respectively, P=0.184].ConclusionCPT could exhibit a potential immune-stimulating effect in HCC patients. The current trial had been registered at the National Hepatology and Tropical Medicine Research Institute (NHTMRI), with a registration number of NHTMRI-IRB 2-21 on 5th January 2021.

Effect of Taurine and Sex on oxidative status of West African dwarf Sheep

Several studies have been carried out on the oxidative status of West African Dwarf (WAD) sheep as influenced by series of antioxidants. However, not much is documented on the use of taurine as an antioxidant. Thirty two WAD sheep involving both sexes (16 ewes and 16 rams) with an average weight of 12kg were fed taurine supplemented diets and evaluated in a Completely Randomized Design involving four dietary treatments with four replicates of two animals each containing 0, 0.5, 1 and 1.5% levels of iinclusion of taurine. The study was carried out during the wet (July-October) and dry (January-April) seasons. Blood sample was collected and the following oxidative parameters were analyzed; catalase (CAT), superoxide dismutase (SOD), glutathione-S-transferase (GST) and glutathione peroxidase (GPX). The result shows CAT activity increases significantly (P&lt;0.05) with 1.5% inclusion level having the highest activity (107.08U/) while the control had the least (100.81U/mL). The least value of SOD (5.14U/mL) was recorded in animals fed the 0% dietary taurine while animals fed 1.5% had the highest activity (9.87U/mL). GST activity increases significantly (P&lt;0.05) from 1.03 U/mL (0%) to 4.68U/mL (1.5%). The GPX varied from 1.14U/mL (0%) to 2.89U/mL (1.5%). CAT (108.61U/mL) is significantly (P&lt;0.05) higher in ram compared to ewe (99.59U/mL). SOD (7.87U/mL) activity was higher in the ewe compared to ram (6.51U/mL). In addition, GST activity was higher in ram (3.06U/mL) compared to ram (1.95U/mL. GPX activity was not influenced by sex. It was concluded from this study that taurine supplemented diet had better antioxidant defense mechanism and significant effect on the sex of investigated WAD sheep. It was recommended that diet of WAD sheep could be supplemented with taurine for higher oxidative stability and protection against tissue damage.&#x0D; &#x0D; &#x0D; &#x0D; &#x0D; Plusieurs études ont été menées sur le statut oxydatif des moutons West African Dwarf (WAD) tel qu'il est influencé par une série d'antioxydants. Cependant, peu de choses sont documentées sur l'utilisation de la taurine comme antioxydant. Trente-deux moutons WAD impliquant les deux sexes (16 brebis et 16 béliers) d'un poids moyen de 12 kg ont été nourris avec des régimes enrichis en taurine et évalués dans un plan complètement randomisé impliquant quatre traitements alimentaires avec quatre répétitions de deux animaux contenant chacun 0, 0,5, 1 et 1,5% niveaux d'inclusion de taurine. L'étude a été réalisée pendant les saisons humides (juillet-octobre) et sèches (janvier-avril). Un échantillon de sang a été prélevé et les paramètres oxydatifs suivants ont été analysés ; catalase (CAT), superoxyde dismutase (SOD), glutathion-S-transférase (GST) et glutathion peroxydase (GPX). Le résultat montre que l'activité CAT augmente de manière significative (P&lt;0,05) avec un niveau d'inclusion de 1,5 % ayant l'activité la plus élevée (107,08 U/) alors que le contrôle en avait le moins (100,81 U/mL). La plus faible valeur de SOD (5,14U/mL) a été enregistrée chez les animaux nourris avec la taurine alimentaire à 0 %, tandis que les animaux nourris avec 1,5 % avaient l'activité la plus élevée (9,87U/mL). L'activité GST augmente significativement (P&lt;0,05) de 1,03 U/mL (0 %) à 4,68 U/mL (1,5 %). Le GPX variait de 1,14U/mL (0 %) à 2,89U/mL (1,5 %). Le CAT (108,61U/mL) est significativement (P&lt;0,05) plus élevé chez le bélier que chez la brebis (99,59U/mL). L'activité de SOD (7,87U/mL) était plus élevée chez la brebis que chez le bélier (6,51U/mL). De plus, l'activité de la GST était plus élevée chez le bélier (3,06 U/mL) que chez le bélier (1,95 U/mL. L'activité de la GPX n'était pas influencée par le sexe. Il a été conclu de cette étude que l'alimentation enrichie en taurine avait un meilleur mécanisme de défense antioxydant et un effet significatif. Il a été recommandé que le régime alimentaire des moutons WAD soit complété par de la taurine pour une meilleure stabilité oxydative et une protection contre les lésions tissulaires.

Taurine, a Component of the Tear Film, Exacerbates the Pathogenic Mechanisms of Acanthamoeba castellanii in the Ex Vivo Amoebic Keratitis Model.

Acanthamoeba spp. is the etiological agent of amoebic keratitis. In this study, the effect of taurine in physiological concentrations in tears (195 μM) on trophozoites of Acanthamoeba castellanii through the ex vivo amoebic keratitis model was evaluated. Trophozoites were coincubated with the Syrian golden hamster cornea (Mesocricetus auratus) for 3 and 6 h. Group 1: Control (-). Corneas coincubated with amoebic culture medium and taurine. Group 2: Control (+). Corneas coincubated with trophozoites without taurine. Group 3: Corneas coincubated with taurine 15 min before adding trophozoites. Group 4: Trophozoites coincubated 15 min with taurine before placing them on the cornea. Group 5: Corneas coincubated for 15 min with trophozoites; subsequently, taurine was added. Results are similar for both times, as evaluated by scanning electron microscopy. As expected, in the corneas of Group 1, no alterations were observed in the corneal epithelium. In the corneas of Group 2, few adhered trophozoites were observed on the corneal surface initiating migrations through cell junctions as previously described; however, in corneas of Groups 3, 4 and 5, abundant trophozoites were observed, penetrating through different corneal cell areas, emitting food cups and destabilizing corneal surface in areas far from cell junctions. Significant differences were confirmed in trophozoites adherence coincubated with taurine (p < 0.05). Taurine does not prevent the adhesion and invasion of the amoebae, nor does it favor its detachment once these have adhered to the cornea, suggesting that taurine in the physiological concentrations found in tears stimulates pathogenic mechanisms of A. castellanii.

An in-silico approach to the potential modulatory effect of taurine on sclerostin (SOST) and its probable role during osteoporosis

The cysteine-knot containing negative regulator of the Wnt (Wingless-related integration site) signaling pathway, sclerostin (SOST) is an emerging therapeutic target for osteoporosis. Its inhibition is responsible for the promotion of osteoblastogenesis. In this study, taurine, an amino sulfonic acid was used to study its mechanism of action for the inhibition of the SOST protein. Molecular docking and dynamic studies were performed as a part of the study whereby, it was observed that taurine binds to a probable allosteric pocket which allows it to modulate the structure of the SOST protein affecting all of the loops – loops 1, loop 2, and loop 3 – as well as the cysteine residues forming the cysteine-knot. The study also identified a set of seven taurine analogues that have better pharmacological activity than their parent compound using screening techniques. The conclusions derived from the study support that taurine has a probable antagonistic effect on the SOST protein directly through the modulation of HNQS motif and loops 2 and 3 and indirectly through its influence on the cysteine residues - 134, 165 and 167 C. Based on the results, it can be assumed that the binding of taurine with SOST protein probably reduces its binding affinity to the LRP6 protein greatly, while also inhibiting the target protein from anchoring to LRP4. Furthermore, it was noted that probable additional binding with any small molecule inhibitor (SMI) at the active site (PNAIG motif), in the presence of an already allosterically bound taurine, of the SOST protein would result in a complete potential antagonism of the target protein. Additionally, the study also uncovers the possible role of the GKWWRPS motif in providing stability to the PNAIG motif for the purpose of binding with LRP6. Communicated by Ramaswamy H. Sarma

Transcriptome-based nutrigenomics analysis reveals the roles of dietary taurine in the muscle growth of juvenile turbot (Scophthalmus maximus)

The present study explored transcriptomics and gene regulation variations in the muscle of turbot fed with dietary taurine. A 70-day feeding trial was conducted using turbot (initial body weight: 3.66 ± 0.02 g) fed with different levels of dietary taurine: 0 % (C), 0.4 % (T2), 1.2 % (T4) and 2.0 % (T6). Two methods were used to analyze and verify the taurine effects on muscle growth: (1) real-time quantitative PCR (qRT-PCR) for the key muscle growth-related genes and (2) transcriptomic analysis by next-generation sequencing (NGS). The results showed that 1.2 % of dietary taurine supplementation significantly increased the expression of muscle growth stimulatory genes, including TauT, myoD, Myf5, myogenin and follistatin. And also, the 1.2 % level significantly decreased the expression of the muscle growth-restricting gene (myostatin). Meanwhile, transcriptomics analysis found that 1.2 % dietary taurine supplementation significantly increased the number of up-regulated genes linked to metabolic pathways. In contrast, taurine significantly enriched the actin cytoskeleton and metabolic pathways in the T4 and T2 groups, respectively. These findings align with the gene ontology (GO) analysis, which indicated a higher number of cellular component (CC) gene expressions at a 1.2 % of dietary taurine compared to a 0.4 % of dietary taurine supplementation. In conclusion, dietary taurine had positive impacts on the growth-stimulatory genes. Moreover, 1.2 % of dietary taurine supplementation is important to the metabolic pathway enrichment.

Effect of exogenous taurine on growth, oxidative defense, and nickel (Ni) uptake in canola (Brassica napus L.) under Ni stress.

The online version contains supplementary material available at 10.1007/s12298-023-01359-9.

Bibliometric and Visual Analysis of Global Research on Taurine, Creatine, Carnosine, and Anserine with Metabolic Syndrome: From 1992 to 2022.

Red meat and animal-sourced protein are often disparaged as risk factors for developing metabolic syndrome, while emerging research has shown the beneficial effects of dietary taurine, creatine, carnosine, and anserine which are all exclusively abundant in red meat. Thus, it is imperative to highlight the available evidence to help promote red meat as part of a well-balanced diet to optimize human health. In this study, a bibliometric analysis was conducted to investigate the current research status of dietary taurine, creatine, carnosine, and anserine with metabolic syndrome, identify research hotspots, and delineate developmental trends by utilizing the visualization software CiteSpace. A total of 1094 publications were retrieved via the Web of Science Core Collection from 1992 to 2022. There exists a gradual increase in the number of publications on this topic, but there is still much room for research papers to rise. The United States has participated in the most studies, followed by China and Japan. The University of Sao Paulo was the research institute contributing the most; Kyung Ja Chang and Sanya Roysommuti have been identified as the most prolific authors. The analysis of keywords reveals that obesity, lipid profiles, blood pressure, and glucose metabolism, as well as ergogenic aid and growth promoter have been the research hotspots. Inflammation and diabetic nephropathy will likely be frontiers of future research related to dietary taurine, creatine, carnosine, and anserine. Overall, this paper may provide insights for researchers to further delve into this field and enlist the greater community to re-evaluate the health effects of red meat.

Amelioration of neurobehavioral, biochemical, and morphological alterations associated with silver nanoparticles exposure by taurine in rats.

The adverse effect of silver nanoparticles (AgNPs) on the nervous system is an emerging concern of public interest globally. Taurine, an essential amino acid required for neurogenesis in the nervous system, is well-documented to possess antioxidant, anti-inflammatory, and antiapoptotic activities. Yet, there is no report in the literature on the effect of taurine on neurotoxicity related to AgNPs exposure. Here, we investigated the neurobehavioral and biochemical responses associated with coexposure to AgNPs (200 µg/kg body weight) and taurine (50 and 100 mg/kg body weight) in rats. Locomotor incompetence, motor deficits, and anxiogenic-like behavior induced by AgNPs were significantly alleviated by both doses of taurine. Taurine administration enhanced exploratory behavior typified by increased track plot densities with diminished heat maps intensity in AgNPs-treated rats. Biochemical data indicated that the reduction in cerebral and cerebellar acetylcholinesterase activity, antioxidant enzyme activities, and glutathione level by AgNPs treatment were markedly upturned by both doses of taurine. The significant abatement in cerebral and cerebellar oxidative stress indices namely reactive oxygen and nitrogen species, hydrogen peroxide, and lipid peroxidation was evident in rats cotreated with AgNPs and taurine. Further, taurine administration abated nitric oxide and tumor necrosis factor-alpha levels cum myeloperoxidase and caspase-3 activities in AgNPs-treated rats. Amelioration of AgNPs-induced neurotoxicity by taurine was confirmed by histochemical staining and histomorphometry. In conclusion, taurine via attenuation of oxido-inflammatory stress and caspase-3 activation protected against neurotoxicity induced by AgNPs in rats.

The Combined Effect of Taurine and Omega-3 Supplementation on Delayed Onset Muscle Soreness in High-Intensity Eccentric Exercise

Background: Eccentric exercise makes more tensions in active muscle fibers, resulting in muscle damage and delayed pain. Therefore, Delayed-Onset Muscle Soreness (DOMS) is a common result of severe eccentric contractions. This study aimed to clarify the combined effect of taurine and omega-3 supplementation on DOMS and muscle damage after high-intensity eccentric exercise in young untrained men.&#x0D; Methods: Forty-eight young untrained males were assigned to four groups (taurine+omega-3 [combined], taurine, omega-3, and one placebo group) and given 1,500 mg taurine and 1,500 mg omega-3 or 1,500 mg taurine or 1,500 mg omega-3 or placebo twice a day respectively. Each group received its supplements for twenty-eight days. DOMS and muscle damage in the lower body developed using a leg press with a weight equivalent to 70% of 1RM (One-Repetition Maximum). Lactate dehydrogenase (LDH), Creatine kinase (CK) and perceived muscle soreness measures were repeated before, immediately, 24, 48, and 72 hr after eccentric activity. p&lt;0.05 was considered to be statistically significant.&#x0D; Results: In the combined group, there was no increase in CK and LDH in immediate time and 72 hr after the exercise, respectively, compared to the period before the workout. At 24 and 48 hr after the training, there was a significant decrease in muscle pain perception in all groups compared to placebo (p&lt;0.05).&#x0D; Coclusion: A combination of 1500 mg taurine and 1500 mg omega-3, two times a day, for four weeks can reduce the levels of CK and LDH enzymes as some indicators of muscle damage. It also attenuates exercise-induced DOMS and muscle damage.

Effect of Taurine on the Manifestations of Audiogenic Epilepsy in Rats with Pendulum Movements

Effect of Taurine on the Manifestations of Audiogenic Epilepsy in Rats with Pendulum Movements

Photobiomodulation in human neuroblastoma under oxidative stress

AbstractBackgroundWith the increase in life expectancy, the number of people with neurodegenerative diseases such as Alzheimer’s Disease (AD) is rising rapidly. Considering the pathways of AD, one of its fundamental processes is oxidative stress, affecting the central nervous system and cell regeneration. Interestingly, in the last decades, photobiomodulation has shown positive effects on neural cells that are compromised by AD. Studies have demonstrated that LED (light emitting diode) irradiation regulates cell function, stimulating cell proliferation, promoting biomodulation in the cytoskeleton, and reducing apoptosis. To contribute with the elucidation of the importance of photobiomodulation in AD, this study aims to evaluate its neuroprotective effect, comparing different energy density of LED irradiating in SH‐SY5Y cells (human neuroblastoma) under the effect of oxidative stress induced by hydrogen peroxide (H2O2).MethodSH‐SY5Y cells (human neuroblastoma) were cultivated in DMEM/F12 medium (Dulbecco’s modified Eagles medium ‐ Gibco), supplemented with 10% fetal bovine serum and 1% antibiotic and antimycotic, at 37°C, in an atmosphere of 5% CO2. Cells were plated in 24‐well plates. After cell adhesion, cells were irradiated with LED at 660 nm (LED Biopdi/Irrad‐Led5), at energy densities of 1 J/cm2, 3 J/cm2, 5 J/cm2 and 10 J/ cm2. 24 h after irradiation, oxidative stress was induced with 200 μM H2O2 for 24h (this parameter had been previously determined by ROSSATO, R. C. et al, 2021).ResultOnce cells are irradiated and stressed, a considerable statistic difference is observed for all energy densities evaluated, compared to the stressed‐only group (H2O2). Importantly, the energy density of 3 J/cm2 was the lowest one that obtained better statistical increase in mithocondrial activity (p &lt; 0.0001).ConclusionIt was possible to determine and compare the energy densities of LED irradiation to promote cellular photobiomodulation, inducing mithocondrial activity on neubroblastoma. Importantly, this study demonstrated the neuroprotective effect of LED in an in vitro model of AD oxidative stress, approaching novel concepts and a preventive tool.ROSSATO, R. C. et al. Neuroprotective effects of taurine on SH‐SY5Y cells under hydrocortisone induced stress. Research, Society and Development, v. 10, n. 9, p. e55510918426‐e55510918426, 2021

The effect of taurine on state of experimental gestosis in rats

BACKGROUND: Gestosis (preeclampsia) is an important problem of modern obstetrics. Despite the improvement of methods of prevention and treatment, there is an increase in the rate of this pregnancy complication. In this regard, the search for new approaches to the treatment of preeclampsia is an important problem of modern perinatology.&#x0D; AIM: The aim of this study is studying of the effect of taurine on experimental gestosis in rats.&#x0D; MATERIALS AND METHODS: Preeclampsia was induced on female rats by sodium nitrite and lipopolysaccharide. 2-aminoethanesulfonic acid was administered at a dose of 44.3 mg / kg (in terms of taurine) from the 16th to the 19th day of pregnancy. The number of implantation sites, resorption sites, live fetuses, weight of placentas and fetuses, lactate dehydrogenase activity, content of lactic and pyruvic acids, nitric oxide, malondialdehyde and creatine were evaluated.&#x0D; RESULTS: It has been shown that 2-aminoethanesulfonic acid leads to normalization of the metabolic processes (the level of malondialdehyde, nitric oxide, lactate and lactate dehydrogenase activity) in the body of pregnant female rats with induced preeclampsia in the last trimester of pregnancy. Taurine reduced the quantity of resorption, increased the weight of placentas and fetuses. Along with a correction of the lactate level, pyruvate and lactate dehydrogenase activity, it was observed a decrease of creatine level in placentas.&#x0D; CONCLUSIONS: Obtained results allows us to recommend taurine, which has antioxidant, antihypoxic, membrane stabilizing, detoxifying, osmoregulating and diuretic effects, for the treatment of placental disorders with preeclampsia.

Taurine alleviated hepatic steatosis in oleic acid-treated-HepG2 cells and rats fed a high-fat diet

Taurine has been proven in many trials to alleviate the symptoms of metabolic associated fatty liver disease. Here its protective effect for hepatic steatosis and modulation of AMP-activated protein kinase and insulin signaling pathway were investigated. Steatotic HepG2 cell established with oleic acid (0.05 mmol/L), treated with taurine (5 mmol/L), dorsomorphin (10 μmol/L) for 24 h. Sprague Dawley rats were divided into regular and high-fat diet (HFD) groups, and their corresponding taurine (70 or 350 mg/kg BW/d) groups, fed for 8 weeks. In steatotic cell, taurine reduced the TG concentration and SREBP-1c, PPARγ, FAS, ACC, SCD1 protein levels, decreased phosphorylation of mTOR, IRS1 (Ser302), increased phosphorylation of AMPKα, LKB1, PI3K, Akt, ACC. While dorsomorphin eliminated taurine's TG-lowering effect. In HFD-fed rats, taurine reduced liver TG, serum TG, ALT, AST, IL-1β, IL-4, TNF-α. The effects of taurine on the main factors of fatty acid synthesis were mostly consistent with cell experiments, and the reduction of microRNAs (451, 33, 291b) was aligned with the improvement in LKB1 and AMPK expression in HFD rats. Taurine alleviated steatosis-induced inhibition of IRS1-PI3K-Akt pathway, but suppressed its positively regulated downstream factor mTOR. In parallel, taurine reduced steatosis by activating LKB1-AMPKα pathway via phosphorylation and no-phosphorylation manner, then inhibiting SREBP-1c directly or by suppressing mTOR phosphorylation.