Total Oxidant Status Research Articles

The effects of inulin supplementation on clinical indices, oxidative stress and inflammatory biomarkers in women with migraine: A double-blind, placebo-controlled, randomized trial

The present study aimed to investigate the effects of 12 weeks inulin supplementation (10 g/d) on clinical indices and biomarkers of inflammation, gut permeability, and oxidative stress in eighty women with migraine. Before and after the trial, we assessed the migraine index (MI), migraine headache index score (MHIS), headache diary results (HDR), high-sensitivity C-reactive protein (hs-CRP), zonulin, nitric oxide (NO), and oxidative stress factors. Inulin supplementation improved total antioxidant capacity (284.07 vs. 26.92, P=0.046), and reduced hs-CRP (−0.69 vs. 0.14), NO (−5.65 vs. 2.57) and oxidative stress index levels (−0.21 vs. 0.05) compared to placebo. Moreover, inulin supplementation resulted in a significant decrease in the score of MHIS, MI, and HDR (all P-values < 0.05). However, no significant change was observed in total oxidative status, and zonulin levels. This study showed that inulin supplementation can favorably improve clinical symptoms, inflammatory and oxidative stress biomarkers in women with migraine.

Phytochemical Composition Antioxidant and Anti-Inflammatory Activity of Artemisia dracunculus and Artemisia abrotanum.

This study aimed to investigate the antioxidant and anti-inflammatory activities mechanism of Artemisia dracunculus (A. dracunculus) and Artemisia abrotanum (A. abrotanum) ethanol extracts in acute rat inflammation induced in Wistar male rats with turpentine oil. The characterization of the polyphenolic compounds in the extracts was conducted using UV-Vis and Fourier-transform infrared spectroscopy and high-performance liquid chromatography coupled with mass spectrometry techniques. The antioxidant activity of the extracts was evaluated in vitro by DPPH, FRAP, H2O2, and NO scavenging tests and in vivo by measuring the total oxidative status (TOS), total antioxidant capacity (TAC), oxidative stress index (OSI), 8-hydroxy-deoxyguanosine (8-Oxo-dG), advanced oxidation protein products (AOPP), malondialdehyde (MDA), nitric oxide (NO), 3-nitrotyrosine (3NT), and total thiols (SH). Inflammation was evaluated by measuring nuclear factor-kB-p65 (NfkB-p65) and NLRP3 inflammasome activation with IL-1β, IL-18, and gasdermin D. Liver and renal toxicity was determined following transaminases (ALT and AST), creatinine, and urea. The experimental results indicated that A. dracunculus and A. abrotanum ethanol extracts have moderate in vitro antioxidant activity and had in vivo antioxidant activity and an anti-inflammatory effect by NfkB-p65, IL-1b, IL-18, and gasdermin D serum level reduction. The antioxidant activity correlated with the chemical composition of the extracts. These results bring evidence-based use of A. dracunculus and A. abrotanum's in traditional and contemporary medicine.

Comparative Evaluation of Different Antivirals against Lumpy Skin Disease in Cattle

India is facing a new wave of Lumpy skin disease outbreaks since May 2022, spreading in more than 22 states and causing morbidity to more than 29 lakh animals and mortality to more than 2 lakh animals. Lack of specific antiviral treatment restores symptomatic therapeutic interventions. However, in the advent of large no. of cases and severity of disease, investigations on specific antiviral drugs are imperative. This scientific study was conducted on a group of LSD-affected cattle (N = 40) from the trans-Himalayan region of Kashmir (Jammu and Kashmir). The affected cattle were subjected to different treatments, including acyclovir (n = 27), symptomatic treatment (n = 7), and ivermectin (n = 6), along with supportive drugs. The animals were carefully monitored and compared both within and between groups at various intervals (0-96 hr) using a two-way analysis of variance (ANOVA). Significant (P ≤ 0.05) improvement in regaining rectal temperature, respiration rate, and heart rate was noted 48 hours after treatment in a group of LSD-affected animals (N = 27) treated with acyclovir at a dose rate of 1 mg/kg body weight (small cattle) to 1.5 mg/kg (large cattle) intravenously in 500 ml normal saline along with supportive drugs including enrofloxacin (2.5 mg/kg), combination of meloxicam (0.25 mg/kg) and paracetamol (7.5 mg/kg) and pheniramine maleate (0.5 mg/kg) all intramuscularly, compared to group of LSD affected cattle (N = 6) treated with ivermectin (0.2 mg/kg subcutaneously) and supportive drugs and another group of LSD affected cattle (N = 7) treated symptomatically with only supportive drugs. Acyclovir treated group showed a significant (P ≤ 0.05) decrease in total leucocyte count, lymphocyte, and basophil count from 0 hour to 96 hour of treatment (23.00 ± 0.534 to 5.59 ± 0.208; 13.97 ± 0.310 to 3.43 ± 0.126; 0.11 ± 0.003 to 0.03 ± 0.001 respectively). Significant (P ≤ 0.05) decrease in total oxidative status (TOS: 73.31%) and increase in total antioxidant status (TAS: 59.9%) was observed in acyclovir treated group followed by ivermectin treated group (TOS: 68.05% and TAS: 27.16%) compared to symptomatically treated group (TOS: 42.41% and TAS: 18.75%). Acyclovir being comparatively more specific antiviral agent than ivermectin may have helped in amelioration of clinical severity and regaining of normal physiological, hematological, and oxidative indices in LSD-affected animals. The current study demonstrates expedited recovery, diminished clinical severity, and re-establishment of physiological, hematological and oxidative markers in animals subjected to acyclovir treatment, followed by animals administered with ivermectin, when compared to animals receiving symptomatic treatment. However, further studies are required to investigate safety or adverse effects, if any.

The Role of Mannitol and Vitamin D in Ovarian Ischemia/Reperfusion Injury in Rats with Acute Abdominal.

This study was designed to investigate the effects of vitamin D and mannitol in an experimental rat ovarian torsion model. Thirty-two female Wistar albino rats were randomly classified as group 1: (sham), group 2: (detorsion), group 3: (detorsion + mannitol), group 4: (detorsion + vitamin D) and group 5: (detorsion + mannitol + vitamin D) (for each group n = 8). All groups were subjected to bilateral adnexal torsion for 2 h except for group 1. Bilateral adnexal detorsion was performed in all groups except for group 1. Groups 3 and 5 intraperitoneally received the injection of mannitol at a dose of 0.3 mg/kg 30 min before detorsion. Also, the group's 4 and 5 orally received vitamin D in a dose of 500 IU/kg/day for two weeks before torsion. Total oxidant status (TOS), total antioxidant status (TAS), oxidative stress index (OSI) and proliferating cell nuclear antigen (PCNA) levels were analyzed. According to the histopathological analyses, ovarian tissue damage and follicle counting were evaluated. TOS, OSI and histopathologic score values of ovarian tissue were significantly lower in group 5 than groups 2, 3 and 4 (p < 0.05). The PCNA level was significantly higher in group 5 than in groups 2, 3 and 4 (p < 0.05). A strong negative correlation was found between OSI and PCNA in groups 2, 3, 4 and 5 (r = -0.92, p = 0.01; r = -0.98, p < 0.0001; r = -0.98, p < 0.0001 and r = -0.96, p = 0.0002, respectively). The numbers of primordial follicles in group 5 (p < 0.001) and primary follicles in group 4 (p < 0.001) were significantly higher when compared to group 2. Based on the results of this study, it could be suggested that combination treatment of mannitol with vitamin D is more effective in reversing tissue damage induced by ischemia-reperfusion (I/R) injury in the ovarian torsion model than administration of only an agent.

Effects of coenzyme Q10 on orthodontic tooth movement and alveolar bone remodeling in rats.

To evaluate the effects of coenzyme Q10 (CoQ10) on alveolar bone remodeling and orthodontic tooth movement (OTM). An orthodontic appliance was placed in 42 female Sprague‒Dawley rats were divided into two groups: the orthodontic force (OF) group (n = 21) and the OF + CoQ10 (CoQ10) treatment group (n = 21). Each group was divided into 3 subgroups, and the rats were sacrificed on days 3, 7 and 14. The rats in CoQ10 and OF groups were administered 100mg/kg b.w./day CoQ10 (in 1 mL/b.w. soybean oil) and 1 mL b.w./day soybean oil, respectively, by orogastric gavage. The OTM was measured at the end of the experiment. The osteoclast, osteoblast and capillary numbers; vascular endothelial growth factor (VEGF), receptor activator nuclear kappa B ligand (RANKL) and osteoprotegrin (OPG) levels in tissue; and total antioxidant status (TAS) and total oxidant status (TOS) in blood were determined. Compared with the OF group, the CoQ10 treatment group exhibited decreased orthodontic tooth movement and osteoclast and capillary numbers. Indeed, the levels of VEGF and RANKL decreased, while the levels of OPG increased except on day 7. Additionally, the CoQ10 treatment group exhibited lower TOS and higher TAS on days 7 and 14 (p < 0.05). Histological findings showed that the morphology of osteoblasts changed in the CoQ10 group; however, there was no significant difference in the number of osteoblasts between the groups (p > 0.05). Due to its effect on oxidative stress and inflammation, CoQ10 regulates bone remodeling by inhibiting osteoclast differentiation, promoting osteoblast differentiation and reducing the amount of OTM. Considering that OTM may be slowed with the use of CoQ10, topics such as orthodontic treatment duration, orthodontic force activation and appointment frequency should be considered in treatment planning. It is predicted that the use of CoQ10 will support the effectiveness of treatment in clinical applications such as preventing relapse in orthodontic treatment by regulating bone modulation and anchorage methods that suppress/optimize unwanted tooth movement.

Vitamin E alleviates glyphosate-based herbicide-induced progesterone secretion inhibition and oxidative stress increase in chicken primary granulosa cells

Glyphosate-based herbicides (GBH) are the most extensively used herbicides worldwide. Despite a presumed nondangerousness for animals, several studies reported negative effects after a GBH exposure in several animal models including birds, notably on reproductive functions. Several studies concerning the advantages of Vitamin E (VE) for antioxidant activity but also growth and reproduction have been reported in birds. However, it remains unclear whether VE could alleviate the negative effect of GBHs on chicken ovarian cells. Here we exposed chicken primary granulosa cells (GCs) from F1 and F3/4 follicles to growing doses of GBH (0.036, 0.36, 3.6, and 36 gly eq/L), with or without VE supplementation (1 mg/L) and investigated cell viability, proliferation, oxidative stress and steroidogenesis. GBH exposure did not affect F1 and F3 GCs viability but it increased cell proliferation only in F1 GCs and this effect was not altered by VE. In both F1 and F3/4 GCs, GBH exposure increased total oxidant status (TOS), reduced total antioxidant status (TAS) and consequently increased index of oxidative stress (OSI) in dose dependent manner. This latter effect for GBH 36 mg eq gly/L was totally abolished in response to VE. In both F1 and F3/4 GCs, GBH exposure reduced progesterone secretion in a dose dependent manner and this effect with GBH 0.36 and 1.8 mg eq glyphosate/L was alleviated by VE. However, we did not observe any effect of GBH and VE on the gene expression of several components of the steroidogenesis process. Taken together, these results show that GBH may have endocrine disruptor effects, and that these effects might be alleviated by antioxidant VE supplementation.

Hypothalamus-pituitary-adrenal axis in patients with post-traumatic stress disorders and related to oxidative stress.

The study involves the effect of hypothalamus-pituitary-adrenal hormones disorders, and related to oxidative stress in individuals with PTSD to those in the healthy group after they experience a specific event that results in a congenital illness or limb loss. Obtaining serum samples from males exclusively in cases where psychiatrists have determined that the men have experienced psychological damage brought on by a particular tragedy, and testing the men for hypothalamus-pituitary-adrenal axis and oxidative stress parameters in comparison to healthy participants. It was observed that there was a notable rise in cortisol levels (5.60±0.93) at 4 pm compared with healthy control (3.43±0.64) resulting from the stimulating effect of the pituitary gland, and this increase has a role in raising levels of oxidative stress in patients total oxidant status (1.08±0.13) compared with control (0.70±0.10). High oxidative stress may lead to increased prolactin levels and decreased testosterone levels. Transmission of incorrect chemical signals from the central nervous system has a role in causing disturbances in hormonal levels of the hypothalamus and its associated glands, and thus an imbalance in the metabolic rate due to high cortisol. Also, high levels of prolactin hormones play a role in a significant decrease in testosterone levels.

Protective effects of L-carnitine against beta-amyloid-induced memory impairment and anxiety-like behavior in a rat model of Alzheimer's disease

Alzheimer's disease (AD), the most common cause of dementia, leads to neurodegeneration and cognitive decline. We investigated the therapeutic effects of L-carnitine on cognitive performance and anxiety-like behavior in a rat model of AD induced by unilateral intracerebroventricular injection of β-amyloid1-42 (Aβ1-42). L-carnitine (100 mg/kg/day) was administered intraperitoneally for 28 consecutive days. Following this, the open-field test, novel object recognition test, elevated plus-maze test, Barnes maze test, and passive avoidance learning test were used to assess locomotor activity, recognition memory, anxiety-like behavior, spatial memory, and passive avoidance memory, respectively. Plasma and hippocampal oxidative stress markers, including total oxidant status (TOS) and total antioxidant capacity (TAC), were examined. In addition, histological investigations were performed in the dentate gyrus of the hippocampus using Congo red staining and hematoxylin and eosin staining. The injection of Aβ1-42 resulted in cognitive deficits and increased anxiety-like behavior. These changes were associated with an imbalance of oxidants and antioxidants in plasma and the hippocampus. Also, neuronal death and Aβ plaque accumulation were increased in the hippocampal dentate gyrus region. However, injection of L-carnitine improved recognition memory, spatial memory, and passive avoidance memory in AD rats. These findings provide evidence that L-carnitine may alleviate anxiety-like behavior and cognitive deficits induced by Aβ1-42 through modulating oxidative-antioxidant status and preventing Aβ plaque accumulation and neuronal death.

The protection afforded by kefir against cyclophosphamide induced testicular toxicity in rats by oxidant antioxidant and histopathological evaluations

Cyclophosphamide (CTX) is the most commonly used effective alkylating drug in cancer treatment, but its use is restricted because its toxic side effect causes testicular toxicity. CTX disrupts the tissue redox and antioxidant balance and the resulting tissue damage causes oxidative stress. In our study based on this problem, kefir against CTX-induced oxidative stress and testicular toxicity were investigated. Rats were divided into 6 groups: control, 150 mg/kg CTX, 5 and 10 mg/kg kefir, 5 and 10 mg/kg kefir + 150 CTX. While the fermented kefirs were mixed and given to the rats for 12 days, CTX was given as a single dose on the 12th day of the experiment. Testis was scored according to spermatid density, giant cell formation, cells shed into tubules, maturation disorder, and atrophy. According to our biochemical findings, the high levels of total oxidant status (TOS), and the low levels of total antioxidant status (TAS) in the CTX group, which are oxidative stress markers, indicate the toxic effect of CTX, while the decrease in TOS levels and the increase in TAS levels in the kefir groups indicate the protective effect of kefir. In the CTX-administered group, tubules with impaired maturation and no spermatids were observed in the transverse section of the testicle, while in the kefir groups, the presence of near-normal tubule structures and tubule lumens despite CTX showed the protective effect of kefir. In our study, it was observed that kefir had a protective and curative effect on CTX-induced toxicity and oxidative stress and could be a strong protector.

Docosahexaenoic acid (DHA) alleviates inflammation and damage induced by experimental colitis.

Inflammatory bowel diseases (IBD), including Crohn's disease (CD) and ulcerative colitis (UC), are chronic gastrointestinal disorders associated with significant morbidity and complications. This study investigates the therapeutic potential of docosahexaenoic acid (DHA) in a trinitrobenzene sulfonic acid (TNBS) induced colitis model, focusing on inflammation, oxidative stress, and intestinal membrane permeability. Wistar albino rats were divided into Control, Colitis, and Colitis + DHA groups (n = 8-10/group). The Colitis and Colitis + DHA groups received TNBS intrarectally, while the Control group received saline. DHA (600 mg/kg/day) or saline was administered via gavage for six weeks. Macroscopic and microscopic evaluations of colon tissues were conducted. Parameters including occludin and ZO-1 expressions, myeloperoxidase (MPO) activity, malondialdehyde (MDA), glutathione (GSH), total antioxidant status (TAS), total oxidant status (TOS), Interleukin-6 (IL-6), and tumor necrosis factor alpha (TNF-α) levels were measured in colon tissues. Colitis induction led to significantly higher macroscopic and microscopic damage scores, elevated TOS levels, reduced occludin and ZO-1 intensity, decreased mucosal thickness, and TAS levels compared to the Control group (p < 0.001). DHA administration significantly ameliorated these parameters (p < 0.001). MPO, MDA, TNF-α, and IL-6 levels were elevated in the Colitis group but significantly reduced in the DHA-treated group (p < 0.001 for MPO, MDA; p < 0.05 for TNF-α and IL-6). DHA demonstrated antioxidant and anti-inflammatory effects by reducing reactive oxygen species production, enhancing TAS capacity, preserving GSH content, decreasing proinflammatory cytokine levels, preventing neutrophil infiltration, reducing shedding in colon epithelium, and improving gland structure and mucosal membrane integrity. DHA also upregulated the expressions of occludin and ZO-1, critical for barrier function. Thus, DHA administration may offer a therapeutic strategy or supplement to mitigate colitis-induced adverse effects.

Investigation of the therapeutic effect of melatonin on deltamethrin applied mouse primary hepatocyte culture

Objective In recent years, it has been known that the melatonin hormone, secreted from the pineal gland, possesses significant antioxidant activity. This study explores the therapeutic effect of melatonin on the deleterious effects of deltamethrin, a pyrethroid pesticide extensively used worldwide, including in Türkiye, on mouse liver cells. Methods Hepatocytes from Balb/C mice were isolated using a two-stage perfusion method, resulting in over 85% live hepatocytes. The isolated cells were cultured with different doses of deltamethrin (1 and 10 µM) and melatonin (100 µM) for 24 and 48 hours. At the conclusion of the culture period, hepatocytes were extracted at the 24th and 48th hours, and Malondialdehyde (MDA), Total Antioxidant Capacity (TAC), Total Oxidation Status (TOS), and DNA damages (8-hydroxy-2’-deoxyguanosine (8-OHdG)) were examined. Results While an increase in MDA, TOS, and DNA damage was observed in the deltamethrin-administered groups of hepatocytes, a decrease in TAC level was noted. It was determined that the applied deltamethrin had no effect on cell viability throughout the application period. Conclusion Furthermore, it was observed that melatonin, when administered concurrently with deltamethrin, reduced the toxic effect of deltamethrin. This study suggests that melatonin has a protective effect against deltamethrin-induced damage in mouse hepatocyte cells.

Tannic acid protects neuroblastoma cells against hydrogen peroxide – triggered oxidative stress by suppressing oxidative stress and apoptosis

Recent investigations indicate that tannic acid is associated with a decrease in oxidative damage. Growing evidence supports the protective effects of tannic acid on the central nervous system (CNS). However, uncertainties persist regarding its influence on hydrogen peroxide (H2O2)-triggered oxidative impairment in nerve cells and its interaction with apoptosis. Hence, the objective of this work was to examine the neuroprotective impact of tannic acid on SH-SY5Y cell impairment following H2O2-induced oxidative stress, particularly concerning apoptotic pathways. The control group received no treatment, while the H2O2 group underwent treatment with 0.5 mM H2O2 for a duration of 24 h. The tannic acid group received treatment with different concentrations of tannic acid for a duration of 24 h. Meanwhile, the tannic acid + H2O2 group underwent pre-treatment with tannic acid for one hour and was subsequently subjected to 0.5 mM H2O2 for one day. Within the tannic acid + H2O2 group, the cell viability in SH-SY5Y cells was notably enhanced by tannic acid at concentrations of 2.5, 5, and 10 μM. It also resulted in a considerable rise in TAS (Total Antioxidant Status) levels and a concurrent decline in TOS (Total Oxidant Status) levels, serving as indicators of reduced oxidative stress. Additionally, tannic acid treatment resulted in decreased levels of apoptotic markers (Bax, cleaved PARP, and cleaved caspase 3) and oxidative DNA damage marker (8-oxo-dG), while increasing the anti-apoptotic marker Bcl-2. The findings from flow cytometry also revealed a significant reduction in the apoptosis rate following pretreatment with tannic acid. In summary, tannic acid demonstrates protective effects on SH-SY5Y cells in the face of H2O2-triggered oxidative damage by suppressing both oxidative stress and apoptosis. Nevertheless, additional research is warranted to assess the neuroprotective potential of tannic acid.

In vivo Evaluation of Antioxidant Activity of Chamomile Extract against Procyclidine-Induced Oxidative Stress: Potential Application in Cancer Prevention.

The study aimed to investigate the effect of the aqueous extract of the chamomile plant on oxidative stress induced by procyclidine in rats. 30 rats were randomly divided into five groups, with 6 rats in each group. The first group was given distilled water only, while the second group was administered procyclidine (1 mg/kg body weight) in three doses daily for a period of 60 days. The third group was given procyclidine in the same doses as the second group for 30 days. Afterward, they were administered an aqueous extract of chamomile (300 mg/kg) for another 30 days. The fourth group was administered the aqueous extract (300 mg/kg) for 30 days. Subsequently, they were given procyclidine in the same doses as the second group for another 30 days. On the other hand, the fifth group was administered the aqueous extract of chamomile (300 mg/kg) for a period of 60 days to investigate the potential effects of the extract. Afterward, blood samples were drawn to measure various biological parameters, including Total Oxidant Status (TOS), Malondialdehyde (MDA), Aspartate Aminotransferase (AST), Alanine Transaminase (ALT), and Acetylcholinesterase (AChE) activity. Finally, an anatomical study was conducted on the kidneys, brain, and liver to enhance the research. The results displayed a significant increase in the levels of TOS, MDA, AST, ALT enzymes, and Ach-E activity in the second group compared to the first group. Groups 3 and 4 significantly decreased compared to the second group based on the same standards. In regard to Group 5, there are no significant moral differences between it and Group 1. Finally, this study demonstrated the importance of using chamomile extract as an antioxidant and its potential in cancer prevention against the oxidative stress induced by excessive doses of procyclidine. (p ≤ 0.005).

The prophylactic and therapeutic effects of cannabidiol on lung injury secondary to cardiac ischemia model in rats via PERK/NRF2/CHOP/BCL2 pathway

Background Inflammation and oxidative stress are key players in lung injury stemming from cardiac ischemia (LISCI). Cannabidiol (CBD) demonstrates tissue-protective properties through its antioxidant, anti-inflammatory, and anti-apoptotic characteristics. This study aims to assess the preventive (p-CBD) and therapeutic (t-CBD) effects of CBD on LISCI. Methods Forty male Wistar Albino rats were divided into four groups: control (CON), LISCI, p-CBD, and t-CBD. The left anterior descending coronary artery was ligated for 30 min of ischemia followed by 30 min of reperfusion. Lung tissues were then extracted for histopathological, immunohistochemical, genetic, and biochemical analyses. Results Histopathologically, marked hyperemia, increased septal tissue thickness, and inflammatory cell infiltrations were observed in the lung tissues of the LISCI group. Spectrophotometrically, total oxidant status and oxidative stress index levels were elevated, while total antioxidant status levels were decreased. Immunohistochemically, expressions of cyclooxygenase-1 (COX1), granulocyte colony-stimulating factor (GCSF), interleukin-6 (IL6) were increased. In genetic analyses, PERK and CHOP expressions were increased, whereas Nuclear factor erythroid 2-related factor 2 (NRF2) and B-cell leukemia/lymphoma 2 protein (BCL2) expressions were decreased. These parameters were alleviated by both prophylactic and therapeutic CBD treatment protocols. Conclusion In LISCI-induced damage, both endoplasmic reticulum and mitochondrial stress, along with oxidative and inflammatory markers, were triggered, resulting in lung cell damage. However, both p-CBD and t-CBD treatments effectively reversed these mechanisms, normalizing all histopathological, biochemical, and PCR parameters.

Effects of Withania somnifera (L.) Dunal in acute pulmonary pathophysiology in a rat model of smoke-induced lung injury and role of IRS-1 and SOX-2

The respiratory structure has a broad capacity to undergo the mechanism of regeneration. The recent study was intended to determine the efficacy of Withania somnifera (L.) Dunal and expression levels of IRS-1 and SOX-2 genes in the smoke-induced Pulmonary Injury. The present study included 3 groups (n = 9): Normal/negative control (NC), positive control/disease control (PC), and treatment group (TG; treated orally with 350 mg/kg of ethanol extract). Lung injury was induced in PC and TG groups in rats by cigarette smoke (4 CG/day). Decapitation (n = 3) was done on the 14th, 18th, and 21st day of treatment. Phenolic acid quantification by HPLC-UV/VIS showed a significant concentration of p-coumaric acid (130.2 mg/kg) that may also contribute to the extract's efficacy. Hematological parameters (leukocytes, hemoglobin, hematocrit) and serum oxidative parameters (total oxidant status and malondialdehyde) were significantly improved (P ≤ 0.05) in the TG compared to the PC group. Moreover, the total antioxidant capacity, total plasma protein, albumin, globulin, and platelet count significantly decreased in the PC while increasing in the treatment group (P ≤ 0.05). Histology showed damaged histological structures in the PC group, while there was obvious regeneration of architectural damage in the TG group. The IRS-1 and SOX-2 genes were up-regulated in the PC group, indicating the role of IRS-1 and SOX-2 gene expression in tissue homeostasis and regeneration in smoke-induced Pulmonary Injury. These results rationalize the traditional use of W. somnifera in pulmonary diseases and encourage further studies to exploit it in the pharmaceutical industry.

Resveratrol ameliorates mitochondrial biogenesis and reproductive outcomes in women with polycystic ovary syndrome undergoing assisted reproduction: a randomized, triple-blind, placebo-controlled clinical trial

BackgroundThis study was designed to examine the effect of resveratrol on mitochondrial biogenesis, oxidative stress (OS), and assisted reproductive technology (ART) outcomes in individuals with polycystic ovary syndrome (PCOS).MethodsFifty-six patients with PCOS were randomly assigned to receive 800 mg/day of resveratrol or placebo for 60 days. The primary outcome was OS in follicular fluid (FF). The secondary outcome involved assessing gene and protein expression related to mitochondrial biogenesis, mitochondrial DNA (mtDNA) copy number, and adenosine triphosphate (ATP) content in granulosa cells (GCs). ART outcomes were evaluated at the end of the trial.ResultsResveratrol significantly reduced the total oxidant status (TOS) and oxidative stress index (OSI) in FF (P = 0.0142 and P = 0.0039, respectively) while increasing the total antioxidant capacity (TAC) (P < 0.0009). Resveratrol consumption also led to significant increases in the expression of critical genes involved in mitochondrial biogenesis, including peroxisome proliferator-activated receptor gamma coactivator (PGC-1α) and mitochondrial transcription factor A (TFAM) (P = 0.0032 and P = 0.0003, respectively). However, the effect on nuclear respiratory factor 1 (Nrf-1) expression was not statistically significant (P = 0.0611). Resveratrol significantly affected sirtuin1 (SIRT1) and PGC-1α protein levels (P < 0.0001 and P = 0.0036, respectively). Resveratrol treatment improved the mtDNA copy number (P < 0.0001) and ATP content in GCs (P = 0.0014). Clinically, the resveratrol group exhibited higher rates of oocyte maturity (P = 0.0012) and high-quality embryos (P = 0.0013) than did the placebo group. There were no significant differences between the groups in terms of chemical or clinical pregnancy rates (P > 0.05).ConclusionsThese findings indicate that resveratrol may be a promising therapeutic agent for patients with PCOS undergoing assisted reproduction.Trial registration numberhttp://www.irct.ir; IRCT20221106056417N1; 2023 February 09.

Association of the -c.108C>T and c.192Q>R polymorphisms of the PON1 gene with preeclampsia among Chinese women

To assess the association of -c.108C>T and c.192Q>R polymorphisms of paraoxonase 1 (PON1) gene with preeclampsia (PE) and the influence of genotypes on the metabolic and oxidative stress indexes among Chinese women. This case-control study has included 334 patients with PE and 1337 healthy pregnant women. The -c.108C>T and c.192Q>R genotypes were determined by PCR and restriction fragment length polymorphism method. Metabolic and oxidative stress parameters were also analyzed. No statistical difference in the genotypic and allelic frequencies for the -c.108C>T and c.192Q>R polymorphisms of the PON1 gene was found between the PE patients and the healthy controls (P > 0.05). Nevertheless, the 192Q-108T haplotype of these polymorphisms was associated with an increased risk of PE (P = 0.007). Total antioxidant capacity (TAC) and atherosderosis index were higher in patients with the -108TT genotype compared with those with a CT genotype (P < 0.05); whilst total oxidant status was lower in patients with a CT genotype compared with those with a CC genotype (P = 0.036). Malondialdehyde level was higher in patients with a 192RR genotype compared with those with a QQ genotype (P = 0.019). TAC level was higher in patients with a RR genotype compared with those with a QR genotype (P = 0.015). The 192Q-108T haplotype of the PON1 gene is associated with the risk for PE. These polymorphisms may be associated with abnormal lipid metabolism and oxidative stress among Chinese PE patients.

Neohesperidin Dihydrochalcone Ameliorates Experimental Colitis via Anti-Inflammatory, Antioxidative, and Antiapoptosis Effects.

Neohesperidin dihydrochalcone (NHDC) is a citrus-originated, seminatural sweetener. There is no investigation concerning the effect of NHDC on ulcerative colitis. The purpose of this study was to determine the therapeutic and protective effects of NHDC in Wistar Albino rats. NHDC was given for 7 days after or before colitis induction. The results showed that NHDC significantly reduced the interleukin-6 (IL-6), interleukin-10 (IL-10), transforming growth factor-β1 (TGF-β1), tumor necrosis factor-α (TNF-α), and interferon-γ (IFN-γ) levels. Catalase levels did not show a significant difference between the groups. NHDC provided a remarkable decrease in the expression levels of cyclooxygenase-2 (COX-2), myeloperoxidase (MPO), malondialdehyde (MDA), 8-hydroxy-2'-deoxyguanosine (8-OHdG), and nuclear factor kappa B (NF-κB). Total antioxidant status (TAS) levels were significantly elevated in NHDC treatment groups, while total oxidant status (TOS) and oxidative stress index (OSI) levels were significantly decreased. NHDC provided remarkable improvement in histological symptoms such as epithelial erosion, edema, mucosal necrosis, inflammatory cell infiltration, and hemorrhage. Also, caspase-3 expression levels were statistically decreased in NHDC treatment groups. The results indicated that NHDC might be a protection or alternative treatment for ulcerative colitis.

Effect of Different Administered Doses of Capsaicin and Titanium Implant Osseointegration.

Background and Objectives: This study aimed to evaluate the histological and biochemical effects of capsaicin on implant osseointegration and oxidative stress. Materials and Methods: Male Wistar albino rats weighing between 250 and 300 g were used in this study. Twenty-four rats were randomly divided into three equal groups: implant + control (n = 8), implant + capsaicin-1 (n = 8), and implant + capsaicin-2 (n = 8). Additionally, 2.5 mm diameter and 4 mm length titanium implants were surgically integrated into the corticocancellous bone parts of the femurs. In the treatment groups, rats were injected intraperitoneally with 25 mg/kg (implant + capsaicin-1) and 50 mg/kg (implant + capsaicin-2) of capsaicin. No additional applications were made in the control group. Three rats in total died during and after the experiment as a result of the analyses performed on 21 animals. Results: The highest total antioxidant status value was found in capsaicin dose 2, according to the analysis. The control group had the highest total oxidant status and oxidative stress index values, while group 2 of capsaicin had the lowest. After analysis, we found that there was no observed positive effect on osteointegration in this study (p > 0.05), although the bone implant connection was higher in the groups treated with capsaicin. Conclusions: A positive effect on osteointegration was not observed in this study. This may be due to osteoclast activation. However, it was found that it has a positive effect on oxidative stress. Osteoclast activation may be the cause of this phenomenon. Capsaicin was found to have a positive effect on oxidative stress (p < 0.05). It was also observed to have a positive effect on oxidative stress.

P-501 Superovulation alters telomere length and telomerase expression in mouse oocytes, possibly by changing estradiol and progesterone levels

Abstract Study question How does the single and repeated superovulation affect the telomerase components expression and telomere length in mouse GV and MII oocytes? Summary answer Superovulation significantly altered the expression of the telomerase components Tert and Terc genes, TERT protein levels, and telomere length in the GV and MII oocytes. What is known already Assisted reproductive technologies (ARTs) are commonly used to treat infertility problems. One of the basic ART steps is controlled ovarian stimulation, also known as superovulation. Superovulation can lead to several adverse effects, such as increased oxidative stress, decreased oocyte and embryo quality, and mitochondrial dysfunction. These effects of superovulation largely overlap with those that causing telomere shortening. Study design, size, duration The effect of superovulation on the telomerase expression and telomere length of GV and MII oocytes is not fully addressed yet. In this study, we investigated the potential effects of single and repeated superovulation on telomerase expression and telomere length in mouse oocytes at germinal vesicle (GV) and metaphase II (MII) stages. In addition, we measured the estradiol and progesterone as well as oxidant and antioxidant capacity in serum samples of the oocytes-collected mice. Participants/materials, setting, methods Four groups of female Balb/C mice were formed: Control (C; n = 12), superovulated once (1S; n = 12), superovulated three times (3S; n = 12), and superovulated five times (5S; n = 12) at one-week intervals. The Tert and Terc gene expression, TERT protein levels, and telomere length in the mouse oocytes were assessed by RT-qPCR, immunofluorescence, and q-PCR, respectively. The hormone levels were analyzed by ELISA, and oxidant-antioxidant capacities were measured. All the ovarian follicles were counted in the H&amp;E stained-sections. Main results and the role of chance We found that superovulation (1S, 3S, and 5S) significantly altered expression of the telomerase components Tert and Terc genes, TERT protein levels, and telomere length in the GV and MII oocytes (P&amp;lt;0.05). While estradiol levels in GV oocyte-collected and progesterone levels of GV and MII oocyte-collected mice were higher in the 1S, 3S, and 5S groups compared with the C group (P&amp;lt;0.01), the estradiol levels in MII oocyte-collected mice decreased progressively from C to 5S groups (P&amp;lt;0.01). However, no significant changes were found in the total oxidant status (TOS), antioxidant status (TAS), and oxidative stress index (OSI) between the groups. Also, primordial and atretic follicle numbers in the ovaries of 3S and 5S groups were significantly decreased compared to the control and 1S groups (P&amp;lt;0.05). Limitations, reasons for caution The limitation of this study is that we could not evaluate telomerase activity and oxidative stress levels in the mouse oocytes. Wider implications of the findings All these results suggest that altered telomerase expression and telomere length in GV and MII oocytes, possibly due to changed estradiol and progesterone levels, may be associated with adverse effects of superovulation on oocyte maturation and even preimplantation embryo development. Trial registration number not applicaple