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1.
Mol Biol Rep ; 51(1): 200, 2024 Jan 25.
Artigo em Inglês | MEDLINE | ID: mdl-38270677

RESUMO

Hypertension, a major contributor to cardiovascular morbidity, is closely linked to amino acid metabolism. Amino acids, particularly branched-chain amino acids (BCAAs) and aromatic amino acids (AAAs), may play pivotal roles in the pathogenesis and potential management of hypertension. This review investigated the relationships between amino acid profiles, specifically BCAAs and AAAs, and hypertension, and examined their potential as diagnostic and therapeutic targets. An in-depth analysis was conducted on studies highlighting the associations of specific amino acids such as arginine, glycine, proline, glutamine, and the BCAAs and AAAs with hypertension. BCAAs and AAAs, alongside other amino acids like arginine, glycine, and proline, showed significant correlations with hypertension. These amino acids influence multiple pathways including nitric oxide synthesis, vascular remodeling, and neurotransmitter production, among others. Distinct amino acid profiles were discerned between hypertensive and non-hypertensive individuals. Amino acid profiling, particularly the levels of BCAAs and AAAs, offers promising avenues in the diagnostic and therapeutic strategies for hypertension. Future studies are crucial to confirm these findings and to delineate amino acid-based interventions for hypertension treatment.


Assuntos
Fabaceae , Hipertensão , Humanos , Aminoácidos , Glicina , Prolina , Arginina , Hipertensão/diagnóstico
2.
Int J Psychiatry Med ; : 912174241272680, 2024 Aug 06.
Artigo em Inglês | MEDLINE | ID: mdl-39106247

RESUMO

OBJECTIVE: Clinicians have noted that the ongoing war on Gaza has had a psychological impact on people with multiple sclerosis (PwMS) whose mental health is particularly vulnerable during times such as these. The present study sought to examine the prevalence and correlates of posttraumatic stress disorder (PTSD) symptoms among PwMS in Jordan during the Gaza war outbreak. METHODS: This was a cross-sectional study involving 171 patients (PwMS) out of 372 patients approached (46% response rate) who were being seen in the MS unit at Al Bashir Hospital, Ammann, Jordan. Inclusion criteria required that participants had been following daily news updates of the October 7 war in Gaza for the past 4 months. RESULTS: Of participants, 125 (73.1%) were female, 98 (57.3%) were on therapy for less than five years, and 30 (17.5%) reported having a relapse during the past 6 months. Significant PTSD symptoms were identified in 58.5% (100 of 171 participants). Those at higher risk were the unemployed (OR = 2.14, 95% CI = 1.13-4.07, P = 0.02), whereas patients receiving dimethyl fumarate (19.9%) were at lower risk (OR = 0.43, 95% CI = 0.19-0.94, P = 0.02). CONCLUSION: The high rate of significant PTSD symptoms among people with MS in this study underscores the need for attention by primary care providers and implementation of a comprehensive multidisciplinary approach to optimize the mental well-being of this fragile population.

3.
Int J Mol Sci ; 25(4)2024 Feb 06.
Artigo em Inglês | MEDLINE | ID: mdl-38396638

RESUMO

The study of intercellular adhesion molecule-1 (ICAM-1) and SIRT1, a member of the sirtuin family with nitric oxide (NO), is emerging in depression and anxiety. As with all antidepressants, the efficacy is delayed and inconsistent. Ascorbic acid (AA) and vitamin D (D) showed antidepressant properties, while etifoxine (Etx), a GABAA agonist, alleviates anxiety symptoms. The present study aimed to investigate the potential augmentation of citalopram using AA, D and Etx and related the antidepressant effect to brain and serum ICAM-1, SIRT1 and NO in an animal model. BALB/c mice were divided into naive, control, citalopram, citalopram + etx, citalopram + AA, citalopram + D and citalopram + etx + AA + D for 7 days. On the 8th day, the mice were restrained for 8 h, followed by a forced swim test and marble burying test before scarification. Whole-brain and serum expression of ICAM-1, Sirt1 and NO were determined. Citalopram's antidepressant and sedative effects were potentiated by ascorbic acid, vitamin D and etifoxine alone and in combination (p < 0.05), as shown by the decreased floating time and rearing frequency. Brain NO increased significantly (p < 0.05) in depression and anxiety and was associated with an ICAM-1 increase versus naive (p < 0.05) and a Sirt1 decrease (p < 0.05) versus naive. Both ICAM-1 and Sirt1 were modulated by antidepressants through a non-NO-dependent pathway. Serum NO expression was unrelated to serum ICAM-1 and Sirt1. Brain ICAM-1, Sirt1 and NO are implicated in depression and are modulated by antidepressants.


Assuntos
Ansiedade , Citalopram , Depressão , Óxido Nítrico , Oxazinas , Animais , Camundongos , Antidepressivos/farmacologia , Antidepressivos/uso terapêutico , Ansiedade/tratamento farmacológico , Ácido Ascórbico/farmacologia , Ácido Ascórbico/uso terapêutico , Citalopram/farmacologia , Citalopram/uso terapêutico , Depressão/tratamento farmacológico , Molécula 1 de Adesão Intercelular , Oxazinas/farmacologia , Oxazinas/uso terapêutico , Sirtuína 1 , Vitamina D/farmacologia , Vitamina D/uso terapêutico , Vitaminas , Quimioterapia Combinada
4.
Inflammopharmacology ; 32(2): 1147-1157, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38180676

RESUMO

Depression is linked with oxidative stress and inflammation, where key players include nitric oxide (NO), nuclear factor erythroid 2-related factor 2 (Nrf2), Brain-Derived Neurotrophic Factor (BDNF), and Heme Oxidase-1 (HO-1). Augmenting the efficacy of antidepressants represents a compelling avenue of exploration. We explored the potential of vitamins C and D as adjuncts to escitalopram (Esc) in a lipopolysaccharide (LPS)-induced depression model focusing on the aforementioned biomarkers. Male Swiss albino mice were stratified into distinct groups: control, LPS, LPS + Esc, LPS + Esc + Vit C, LPS + Esc + Vit D, and LPS + Esc + Vit C + Vit D. After a 7-day treatment period, a single LPS dose (2 mg/kg), was administered, followed by comprehensive assessments of behavior and biochemical parameters. Notably, a statistically significant (p < 0.05) alleviation of depressive symptoms was discerned in the Esc + Vit C + Vit D group versus the LPS group, albeit with concomitant pronounced sedation evident in all LPS-treated groups (p < 0.05). Within the cortex, LPS reduced (p < 0.05) the expression levels of NOx, Nrf2, BDNF, and HO-1, with only HO-1 being reinstated to baseline in the LPS + Esc + Vit D and the LPS + Esc + Vit C + Vit D groups. Conversely, the hippocampal NOx, Nrf2, and HO-1 levels remained unaltered following LPS administration. Notably, the combination of Esc, Vit C, and Vit D effectively restored hippocampal BDNF levels, which had been diminished by Esc alone. In conclusion, vitamins C and D enhance the therapeutic effects of escitalopram through a mechanism independent of Nrf2. These findings underscore the imperative need for in-depth investigations.


Assuntos
Escitalopram , Lipopolissacarídeos , Camundongos , Animais , Masculino , Lipopolissacarídeos/farmacologia , Depressão/tratamento farmacológico , Depressão/metabolismo , Ácido Ascórbico/farmacologia , Fator Neurotrófico Derivado do Encéfalo/metabolismo , Fator 2 Relacionado a NF-E2/metabolismo , Vitaminas , Adjuvantes Imunológicos , Vitamina D , Modelos Animais
5.
Inflammopharmacology ; 32(3): 2035-2048, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38520575

RESUMO

The aim of this investigation was to explore the protective impacts and mechanisms of Anastatica hierochuntica essential oil (EOAH) against dextran sulfate sodium (DSS)-induced experimental colitis in mice. EOAH demonstrated a reduction in DSS-induced body weight decline, disease activity index (DAI), colon length reduction, colonic tissue damage, and myeloperoxidase (MPO) activity. The essential oil significantly mitigated the production of pro-inflammatory agents including TNF-α, IL-1ß, and IL-12. Further analysis revealed that EOAH's anti-inflammatory effects involved the regulation of NF-κB and PPARγ pathways, as well as the inhibition of NLRP3 activation in colitis mice. Notably, EOAH treatment elevated the levels of beneficial commensal bacteria such as Lactobacillus and Bifidobacteria, while reducing Escherichia coli levels in the mice's feces. In addition, EOAH restored the expression of occludin and ZO-1 proteins in colonic tissues affected by ulcerative colitis (UC). These findings indicate that supplementing with EOAH might offer a novel therapeutic approach for UC prevention.


Assuntos
Anti-Inflamatórios , Colite , Sulfato de Dextrana , Óleos Voláteis , Animais , Óleos Voláteis/farmacologia , Óleos Voláteis/administração & dosagem , Camundongos , Colite/tratamento farmacológico , Colite/induzido quimicamente , Colite/metabolismo , Anti-Inflamatórios/farmacologia , Colite Ulcerativa/tratamento farmacológico , Colite Ulcerativa/induzido quimicamente , Colite Ulcerativa/metabolismo , NF-kappa B/metabolismo , Masculino , Modelos Animais de Doenças , Camundongos Endogâmicos C57BL
6.
Afr J Reprod Health ; 28(6): 66-74, 2024 06 30.
Artigo em Inglês | MEDLINE | ID: mdl-38979874

RESUMO

Dysmenorrhea, the most common gynecological pain syndrome reported in women, is understudied in refugee communities. In addition, the association between dysmenorrhea self-medication and mental health symptoms in this population is poorly understood. We aimed to examine whether the use of dysmenorrhea analgesic self-medications and other clinical factors are associated with post-traumatic stress disorder (PTSD), depression, anxiety and insomnia severity in female war refugees residing in Zaatari Camp. This study followed a cross-sectional design and was performed on a cohort of women with predefined inclusion criteria. The severity of PTSD, depression, anxiety and insomnia were assessed using Davidson Trauma Scale, the Patient Health Questionnaire-9, the General Anxiety Disorder-7, and the Arabic version of the Insomnia Severity Index, respectively. Data were analysed from 386 participants. Using OTC paracetamol was significantly associated with higher PTSD severity (B=4.16, t= 2.43, p=0.01), and severe depression (OR=1.88, 95% CI= 1.07-3.28, p=0.03), while OTC non-steroidal anti-inflammatory drugs (NSAIDs) was significantly associated with severe insomnia (OR=1.62, 95% CI= 1.05-2.49, p= 0.02). In conclusion, self-medication with analgesics was correlated with poor mental health; close medical and psychiatric follow-up are required to supervise pain self-medication and implement non-pharmacological strategies to manage dysmenorrhea in this fragile community.


La dysménorrhée, le syndrome douloureux gynécologique le plus fréquemment signalé chez les femmes, est peu étudiée dans les communautés de réfugiés. De plus, l'association entre l'automédication de la dysménorrhée et les symptômes de santé mentale dans cette population est mal comprise. Nous avions pour objectif d'examiner si l'utilisation d'automédicaments analgésiques contre la dysménorrhée et d'autres facteurs cliniques sont associés au trouble de stress post-traumatique (SSPT), à la dépression, à l'anxiété et à la gravité de l'insomnie chez les réfugiées de guerre résidant dans le camp de Zaatari. Cette étude a suivi une conception transversale et a été réalisée sur une cohorte de femmes avec des critères d'inclusion prédéfinis. La gravité du SSPT, de la dépression, de l'anxiété et de l'insomnie a été évaluée à l'aide de l'échelle de traumatisme de Davidson, du questionnaire sur la santé du patient-9, du trouble d'anxiété général-7 et de la version arabe de l'indice de gravité de l'insomnie, respectivement. Les données ont été analysées auprès de 386 participants. L'utilisation de paracétamol en vente libre était significativement associée à une gravité plus élevée du SSPT (B = 4,16, t = 2,43, p = 0,01) et à une dépression sévère (OR = 1,88, IC à 95 % = 1,07-3,28, p = 0,03), tandis que les médicaments non stéroïdiens en vente libre les anti-inflammatoires (AINS) étaient associés de manière significative à l'insomnie sévère (OR = 1,62, IC à 95 % = 1,05-2,49, p = 0,02). En conclusion, l'automédication avec des analgésiques était corrélée à une mauvaise santé mentale ; un suivi médical et psychiatrique étroit est nécessaire pour encadrer l'automédication de la douleur et mettre en œuvre des stratégies non pharmacologiques pour prendre en charge la dysménorrhée dans cette communauté fragile.


Assuntos
Refugiados , Automedicação , Humanos , Feminino , Refugiados/psicologia , Adulto , Dismenorreia/psicologia , Saúde Mental , Adulto Jovem , Campos de Refugiados
7.
Curr Issues Mol Biol ; 45(9): 7668-7679, 2023 Sep 21.
Artigo em Inglês | MEDLINE | ID: mdl-37754268

RESUMO

Oxidative stress and inflammation are implicated in depression. While selective serotonin reuptake inhibitors (SSRIs) like escitalopram are commonly prescribed as first-line treatments, their inconsistent efficacy and delayed onset of action necessitates the exploration of adjunctive therapies. Isorhamnetin, a flavonol, has shown antioxidant and anti-inflammatory properties that makes exploring its antidepressant effect attractive. This study aims to investigate the adjuvant potential of isorhamnetin in combination with escitalopram to enhance its antidepressant efficacy in a lipopolysaccharide (LPS)-induced depression model using Swiss albino mice. Behavioral paradigms, such as the forced swim test and open field test, were employed to assess depressive symptoms, locomotion, and sedation. Additionally, enzyme-linked immunosorbent assays were utilized to measure Nrf2, BDNF, HO-1, NO, and IL-6 levels in the prefrontal cortex and hippocampus. The results demonstrate that isorhamnetin significantly improves the antidepressant response of escitalopram, as evidenced by reduced floating time in the forced swim test. Moreover, isorhamnetin enhanced antidepressant effects of escitalopram and effectively restored depleted levels of Nrf2, BDNF, and HO-1 in the cortex caused by LPS-induced depression. Isorhamnetin shows promise in enhancing the efficacy of conventional antidepressant therapy through antioxidant and anti-inflammatory effects.

8.
Mol Cell Biochem ; 478(6): 1281-1291, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36302992

RESUMO

Immunophilins are a family of proteins encompassing FK506-binding proteins (FKBPs) and cyclophilins (Cyps). FKBPs and Cyps exert peptidyl-prolyl cis-trans isomerase (PPIase) activity, which facilitates diverse protein folding assembly, or disassembly. In addition, they bind to immunosuppressant medications where FKBPs bind to tacrolimus (FK506) and rapamycin, whereas cyclophilins bind to cyclosporin. Some large immunophilins have domains other than PPIase referred to as tetratricopeptide (TPR) domain, which is involved in heat shock protein 90 (Hsp90) and heat shock protein 70 (Hsp 70) chaperone interaction. The TPR domain confers immunophilins' pleotropic actions to mediate various physiological and biochemical processes. So far, immunophilins have been implicated to play an important role in pathophysiology of inflammation, cancer and neurodegenerative disorders. However, their importance in the development of fibrosis has not yet been elucidated. In this review we focus on the pivotal functional and mechanistic roles of different immunophilins in fibrosis establishment affecting various organs. The vast majority of the studies reported that cyclophilin A, FKBP12 and FKBP10 likely induce organ fibrosis through the calcineurin or TGF-ß pathways. FKBP51 demonstrated a role in myelofibrosis development through calcineurin-dependant pathway, STAT5 or NF-κB pathways. Inhibition of these specific immunophilins has been shown to decrease the extent of fibrosis suggesting that immunophilins could be a novel promising therapeutic target to prevent or reverse fibrosis.


Assuntos
Ciclofilinas , Tacrolimo , Tacrolimo/farmacologia , Calcineurina/metabolismo , Peptidilprolil Isomerase/metabolismo , Chaperonas Moleculares/metabolismo , Dobramento de Proteína
9.
Int J Mol Sci ; 24(6)2023 Mar 17.
Artigo em Inglês | MEDLINE | ID: mdl-36982822

RESUMO

Cirsimaritin is a dimethoxy flavon that has different biological activities such as antiproliferative, antimicrobial, and antioxidant activities. This study aims to investigate the anti-diabetic effects of cirsimaritin in a high-fat diet and streptozotocin-(HFD/STZ)-induced rat model of type 2 diabetes mellitus (T2D). Rats were fed HFD, followed by a single low dose of STZ (40 mg/kg). HFD/STZ diabetic rats were treated orally with cirsimaritin (50 mg/kg) or metformin (200 mg/kg) for 10 days before terminating the experiment and collecting plasma, soleus muscle, adipose tissue, and liver for further downstream analysis. Cirsimaritin reduced the elevated levels of serum glucose in diabetic rats compared to the vehicle control group (p < 0.001). Cirsimaritin abrogated the increase in serum insulin in the treated diabetic group compared to the vehicle control rats (p < 0.01). The homeostasis model assessment of insulin resistance (HOMA-IR) was decreased in the diabetic rats treated with cirsimaritin compared to the vehicle controls. The skeletal muscle and adipose tissue protein contents of GLUT4 (p < 0.01 and p < 0.05, respectively) and pAMPK-α1 (p < 0.05) were upregulated following treatment with cirsimaritin. Cirsimaritin was able to upregulate GLUT2 and AMPK protein expression in the liver (p < 0.01, <0.05, respectively). LDL, triglyceride, and cholesterol were reduced in diabetic rats treated with cirsimaritin compared to the vehicle controls (p < 0.001). Cirsimaritin reduced MDA, and IL-6 levels (p < 0.001), increased GSH levels (p < 0.001), and reduced GSSG levels (p < 0.001) in diabetic rats compared to the vehicle control. Cirsimaritin could represent a promising therapeutic agent to treat T2D.


Assuntos
Diabetes Mellitus Experimental , Diabetes Mellitus Tipo 2 , Resistência à Insulina , Metformina , Ratos , Animais , Diabetes Mellitus Tipo 2/metabolismo , Diabetes Mellitus Experimental/metabolismo , Metformina/efeitos adversos , Dieta Hiperlipídica , Glicemia/metabolismo , Resistência à Insulina/fisiologia , Hipoglicemiantes/efeitos adversos , Estreptozocina/efeitos adversos
10.
Molecules ; 28(2)2023 Jan 04.
Artigo em Inglês | MEDLINE | ID: mdl-36677559

RESUMO

Background: Isorhamnetin is a flavonoid that is found in medical plants. Several studies showed that isorhamnetin has anti-inflammatory and anti-obesity effects. This study aims to investigate the anti-diabetic effects of isorhamnetin in a high-fat diet and Streptozotocin-(HFD/STZ)-induced mice model of type 2 diabetes. Materials and Methods: Mice were fed with HFD followed by two consecutive low doses of STZ (40 mg/kg). HFD/STZ diabetic mice were treated orally with isorhamnetin (10 mg/kg) or (200 mg/kg) metformin for 10 days before sacrificing the mice and collecting plasma and soleus muscle for further analysis. Results: Isorhamnetin reduced the elevated levels of serum glucose compared to the vehicle control group (p < 0.001). Isorhamnetin abrogated the increase in serum insulin in the treated diabetic group compared to the vehicle control mice (p < 0.001). The homeostasis model assessment of insulin resistance (HOMA-IR) was decreased in diabetic mice treated with isorhamnetin compared to the vehicle controls. Fasting glucose level was significantly lower in diabetic mice treated with isorhamnetin during the intraperitoneal glucose tolerance test (IPGTT) (p < 0.001). The skeletal muscle protein contents of GLUT4 and p-AMPK-α were upregulated following treatment with isorhamnetin (p > 0.01). LDL, triglyceride, and cholesterol were reduced in diabetic mice treated with isorhamnetin compared to vehicle control (p < 0.001). Isorhamnetin reduced MDA, and IL-6 levels (p < 0.001), increased GSH levels (p < 0.001), and reduced GSSG levels (p < 0.05) in diabetic mice compared to vehicle control. Conclusions: Isorhamnetin ameliorates insulin resistance, oxidative stress, and inflammation. Isorhamnetin could represent a promising therapeutic agent to treat T2D.


Assuntos
Diabetes Mellitus Experimental , Diabetes Mellitus Tipo 2 , Resistência à Insulina , Camundongos , Animais , Diabetes Mellitus Tipo 2/metabolismo , Resistência à Insulina/fisiologia , Dieta Hiperlipídica/efeitos adversos , Estreptozocina/farmacologia , Diabetes Mellitus Experimental/metabolismo , Inflamação/tratamento farmacológico , Modelos Animais de Doenças , Estresse Oxidativo , Glucose/farmacologia , Glicemia , Hipoglicemiantes/uso terapêutico
11.
Medicina (Kaunas) ; 59(3)2023 Mar 20.
Artigo em Inglês | MEDLINE | ID: mdl-36984619

RESUMO

Background and objectives: Community pharmacists play an important role in ensuring the patient's adherence to medications, thus achieving therapeutic outcomes. The present study had two aims: to measure the extent of knowledge that community pharmacists had about psychotropic medications and to determine the factors associated with higher knowledge scores. Methods: A cross-sectional design was employed, using a structured online questionnaire. The study instrument assessed demographics, general practice characteristics related to psychotropics and a battery of factual questions that assessed the knowledge of pharmacists about psychotropic medications using closed-ended responses. A total knowledge score consisting of the sum of correct responses was calculated; the passing score was 75%. A total of 676 pharmacists completed the survey. Results: Only 20% passed the threshold score (75%) for the factual knowledge questions, and only (11.0%) were very comfortable with their knowledge of psychotropic agents. A total of 49.0% of the respondents felt that they had been adequately trained to counsel patients on psychotropic agents. According to the regression model, pharmacists who reported higher knowledge were more experienced (0.63, (0.26-1.0), p < 0.001), reported studying the topic in the pharmacy school (0.77 (0.27-1.26), p = 0.002) holding a Doctor of Pharmacy (Pharm D) degree (0.24 (0.05-0.43), p = 0.01), and reported a higher perceived knowledge (0.29 (0.01-0.38), p = 0.038). Conclusion: Community pharmacists reported poor knowledge of psychotropic medications, and continuous medical and professional education programs are mandatory.


Assuntos
Alfabetização , Farmacêuticos , Humanos , Estudos Transversais , Inquéritos e Questionários , Psicotrópicos/uso terapêutico
12.
Int J Clin Pract ; 75(7): e14249, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33884714

RESUMO

OBJECTIVE: This study was conducted to study the anxiety scores among undergraduate university students in Jordan during COVID-19 pandemic and to assess the relationship between quarantine and shifting to distance learning resulted from the governmental strict isolation measures and severity of anxiety among students. METHODS: A cross-sectional design was conducted to meet the study objectives. A convenience sample of 736 undergraduate university students in Jordan was recruited, and anxiety was assessed using the Hamilton Anxiety Scale. RESULTS: The results indicated that anxiety score was 22.76 and 40.6% of the participant experienced moderate to severe anxiety, whereas 23.5% experienced mild to moderate anxiety and 35.9% experienced mild anxiety. Factors like suffering from chronic illnesses, having chronic medications, grade point average, shifting to distance learning, quarantine during the pandemic, study duties, the newly developed evaluation methods and the experience of students towards the use of anti-anxiety drugs and herbs had significantly increased the anxiety scores. CONCLUSION: Our findings indicate that quarantine and shifting to distance learning during COVID-19 pandemic have negatively affected the anxiety scores of the university students which should be taken in consideration by the policymakers in Jordan in order to support this vulnerable group.


Assuntos
Ansiolíticos , COVID-19 , Ansiedade/tratamento farmacológico , Ansiedade/epidemiologia , Estudos Transversais , Humanos , Jordânia/epidemiologia , Pandemias , Quarentena , SARS-CoV-2 , Estudantes , Inquéritos e Questionários
13.
Phytother Res ; 32(4): 651-656, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29356144

RESUMO

Oleuropein, the main constituents of leaves and fruits of the olive tree, has been demonstrated to exert various therapeutic and pharmacological properties including antidiabetic effect. However, the effectiveness of oleuropein on glucose homeostasis in intact rat skeletal muscle ex vivo has never been explored. Therefore, our current study was carried out to investigate and confirm the beneficial effect of oleuropein (1.5 mM) on glucose uptake and on parameters relevant to the normal homeostatic mechanisms of glucose regulation in rat skeletal muscle. For this purpose, soleus muscles were incubated for 12 hr without (control) or with oleuropein, in the presence or absence of AMP-activated protein kinase (AMPK) inhibitor, compound C, or wortmannin, an inhibitor of phosphatidylinositol kinase. Oleuropein-stimulated glucose transport, plasmalemmal glucose transporter 4 (GLUT4), and phosphorylation of phosphatidylinositol kinase and AMPK were examined. We observed that oleuropein treatment enhanced glucose transport, GLUT4 translocation, and AMPK phosphorylation. The oleuropein-stimulated glucose uptake and GLUT4 translocation were inhibited by compound C and were not affected by wortmannin. These results suggest that increased glucose uptake induced by oleuropein might be mediated through activation of AMPK and the subsequent increase in GLUT4 translocation in skeletal muscles.


Assuntos
Glucose/metabolismo , Insulina/metabolismo , Iridoides/uso terapêutico , Animais , Transportador de Glucose Tipo 4/metabolismo , Homeostase , Hipoglicemiantes/farmacologia , Glucosídeos Iridoides , Iridoides/farmacologia , Masculino , Ratos , Ratos Wistar
14.
Artigo em Inglês | MEDLINE | ID: mdl-39298016

RESUMO

The escalating global burden of cardiovascular diseases is a growing concern. Numerous research studies have established that plant-derived polyphenols, including α-pinene-a monocyclic monoterpene found in various plant essential oils-have significant effects on key cardiovascular mechanisms. These effects are mediated through their influence on antioxidant systems, cellular signaling pathways, and gene transcription processes. This study investigated the protective effects of α-pinene against cardiac damage caused by carbon tetrachloride (CCl4) in Wistar rats. Rats were divided into four groups: a control group receiving saline, a disease control group-administered CCl4 (1 mL/kg body weight, intraperitoneally), and two treatment groups receiving α-pinene orally at doses of 50 mg/kg and 100 mg/kg body weight alongside CCl4, to assess its dose-dependent effects. We conducted comprehensive evaluations, including assessments of serum and cardiac toxicity biomarkers, inflammatory mediators, antioxidant defense mechanisms, lipid peroxidation levels, lipid profiles, and histopathological analyses. CCl4 exposure resulted in notable increases in free fatty acids (FFA), total cholesterol (TC), triglycerides (TG), phospholipids (PL), low-density lipoprotein (LDL), and very low-density lipoprotein (VLDL) levels, and a decrease in high-density lipoprotein (HDL) levels. Treatment with α-pinene at 100 mg/kg effectively counteracted these lipid profile changes. CCl4 also caused lipid oxidation and a reduction in antioxidant activities, which were restored to normal levels with α-pinene treatment at 100 mg/kg body weight. Moreover, an upsurge in inflammatory markers (interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), and high-sensitivity C-reactive protein (Hs-CRP)) and cardiac toxicity biomarkers (creatine kinase (CK), and creatine kinase-myocardial band (CK-MB) and troponin) induced by CCl4 intoxication was reversed by α-pinene. Histopathological studies further validated these findings. The study concludes that α-pinene, administered at a dosage of 100 mg/kg body weight, effectively alleviates cardiac injury induced by CCl4. The data suggest that α-pinene exerts its protective effects through modulation of various signaling pathways involved in CCl4-induced cardiac toxicity.

15.
Toxicol Rep ; 12: 564-573, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38798986

RESUMO

The flavonoid compound Isorhamnetin (IRMN) is known for its considerable pharmacological properties, which include antioxidant and anti-inflammatory effects, as well as significant protective actions on heart health. However, the potential of IRMN to guard against heart damage caused by cisplatin (CP), a common chemotherapeutic agent, and the specific mechanisms involved, remain unexplored areas. This research was designed to investigate how IRMN counters CP-induced heart toxicity. In our study, mice were orally given IRMN at 50 or 150 mg/kg/day for a week, followed by CP injections (5 mg/kg/day) on the third and sixth days. The animals were euthanized under sodium pentobarbital anesthesia (50 mg/kg, intraperitoneally) on the eighth day to collect blood and heart tissues for further examination. Our findings reveal that IRMN administration significantly reduced the heart damage and the elevation of heart injury markers such as cardiac troponin I, creatine kinase, and lactate dehydrogenase induced by CP. IRMN also effectively lowered oxidative stress markers, including reactive oxygen species and malondialdehyde, while boosting ATP production and antioxidants like superoxide dismutase, catalase, and glutathione. The compound's capability to diminish the levels of pro-inflammatory cytokines like tumor necrosis factor-alpha and interleukin-6, alongside modulating apoptosis-regulating proteins (enhancing Bcl-2 while suppressing Bax and Caspase-3 expression), further underscores its cardioprotective effect. Notably, IRMN modulated the p62-Keap1-Nrf2 signaling pathway, suggesting a mechanism through which it exerts its protective effects against CP-induced cardiac injury. These insights underscore the potential of IRMN as an effective adjunct in cancer therapy, offering a strategy to mitigate the cardiotoxic side effects of cisplatin.

16.
Prev Nutr Food Sci ; 29(1): 31-39, 2024 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-38576881

RESUMO

Inflammatory bowel disease (IBD) is a chronic disease that affects the entire digestive tract. IBD can be classified as ulcerative colitis or Crohn's disease. The key symptoms of IBD include the emergence of abscesses or pustules, pronounced abdominal discomfort, diarrhea, fistulas, and intestinal narrowing, all of which can greatly affect a patient's daily well-being. Several factors, including bacterial infections, immune response irregularities, and changes in the intestinal milieu, can contribute to the onset of IBD. The aim of this study was investigating the role of cirsimaritin in reducing the severity of colitis in animal model. To induce colitis in laboratory Swiss albino mice, a 4% dextran sulfate sodium (DSS) concoction was provided in their hydration source for a duration of six days. Before the onset of colitis, mice were treated with cirsimaritin (10 mg/kg) once daily to evaluate its potential treatment effects against DSS-induced inflammation. The results showed that 10 mg/kg of cirsimaritin decreased colitis severity (P<0.05). Moreover, cirsimaritin successfully reversed the detrimental effects induced by DSS, including weight reduction, colon truncation, tissue-related damage, increased levels of inflammatory cells in the affected region, and secretion of proinflammatory cytokines. Our findings suggest that cirsimaritin can effectively alleviate acute colitis triggered by DSS.

17.
J Clin Med ; 13(6)2024 Mar 14.
Artigo em Inglês | MEDLINE | ID: mdl-38541907

RESUMO

(1) Background: Attention Deficit Hyperactivity Disorder (ADHD)-like symptoms and insomnia are closely related. The present study examined whether the use of different sleep aids was related to severe ADHD-like symptoms in Jordanian adults screened for insomnia. (2) Methods: This cross-sectional study used predefined inclusion criteria. The severity of ADHD was assessed using the validated Arabic version of the Adult ADHD Self-Report Scale. (3) Results: Data were analyzed from 244 subjects who met the inclusion criteria for severe insomnia, of which 147 (65.3%) reported not using any sleep aid, 50 (22.3%) reported using homeopathy remedies as sleep aids, and 41 (18.3%) reported using over-the-counter antihistamines as sleep aids. Regression analysis revealed that the use of such sleep aids-namely, "homeopathy herbal remedies" and "over-the-counter antihistamines"-was not associated (p > 0.05) with ADHD-like symptoms. However, "age above 31 years old" was significantly associated (B = -3.95, t = -2.32, p = 0.002) with lower ADHD severity, while the "diagnosis with chronic diseases" was significantly associated (B = 4.15, t = 1.99, p = 0.04) with higher ADHD severity. (4) Conclusions: Sleep aids are not associated with ADHD-like symptoms in adults. More research is required to uncover the risk factors for adult ADHD, especially insomnia.

18.
Arch Physiol Biochem ; : 1-11, 2024 Mar 06.
Artigo em Inglês | MEDLINE | ID: mdl-38445617

RESUMO

CONTEXT: Type 2 Diabetes Mellitus (T2D) is a significant health concern worldwide, necessitating novel therapeutic approaches beyond conventional treatments. OBJECTIVE: To assess isorhamnetin's potential in improving insulin sensitivity and mitigating T2D characteristics through oxidative and glycative stress modulation. MATERIALS AND METHODS: T2D was induced in mice with a high-fat diet and streptozotocin injections. Isorhamnetin was administered at 10 mg/kg for 12 weeks. HepG2 cells were used to examine in vitro effects on stress markers and insulin sensitivity. Molecular effects on the PGK1 and AKT signalling pathway were also analyzed. RESULTS: The administration of isorhamnetin significantly impacted both in vivo and in vitro models. In HepG2 cells, oxidative and glycative stresses were markedly reduced, indicating a direct effect of isorhamnetin on cellular stress pathways, which are implicated in the deterioration of insulin sensitivity. Specifically, treated cells showed a notable decrease in markers of oxidative stress, such as malondialdehyde, and advanced glycation end products, highlighting isorhamnetin's antioxidant and antiglycative properties. In vivo, isorhamnetin-treated mice exhibited substantially lower fasting glucose levels compared to untreated T2D mice, suggesting a strong hypoglycemic effect. Moreover, these mice showed improved insulin responsiveness, evidenced by enhanced glucose tolerance and insulin tolerance tests. The molecular investigation revealed that isorhamnetin activated PGK1, leading to the activation of the AKT signalling pathway, crucial for promoting glucose uptake and reducing insulin resistance. This molecular action underscores the potential mechanism through which isorhamnetin exerts its beneficial effects in T2D management. DISCUSSION: The study underscores isorhamnetin's multifaceted role in T2D management, emphasizing its impact on oxidative and glycative stress reduction and molecular pathways critical for insulin sensitivity. CONCLUSION: Isorhamnetin presents a promising avenue for T2D treatment, offering a novel approach to enhancing insulin sensitivity and managing glucose levels through the modulation of key molecular pathways. Further research is needed to translate these findings into clinical practice.

19.
Psychopharmacology (Berl) ; 241(11): 2347-2362, 2024 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38886190

RESUMO

RATIONALE: Early-life maternal separation can lead to anxiety-like and depression-like behaviors in mice reared under maternal separation conditions. Scopoletin, a compound with anti-inflammatory and antidepressant properties, may offer therapeutic benefits, but its effectiveness against behaviors induced by maternal separation during adulthood remains unexplored. OBJECTIVES: This study investigates scopoletin's efficacy in alleviating anxiety-like and depression-like phenotypes in male mice subjected to early-life maternal separation. METHODS: Male C57BL/6J mice experienced daily maternal separation for 4 h from postnatal day (PND) 2 to 21. From postnatal day 61(PND 61), scopoletin was administered intraperitoneally at 20 mg/kg/day for four weeks. Behavioral and biochemical assessments were conducted at postnatal day 95 (PND 95). RESULTS: Maternally separated mice displayed marked anxiety-like and depression-like behaviors, evident in behavioral tests like the open field and elevated plus maze. These mice also showed increased immobility in the forced swimming and tail suspension tests. Biochemically, there were elevated levels of IL-1ß, IL-6, and TNF-α in the hippocampus, with a decrease in Sirt1 and upregulation in NF-κB p65 expression. Scopoletin treatment significantly mitigated these behavioral abnormalities, normalizing both anxiety-like and depression-like behaviors. Correspondingly, it reduced the levels of pro-inflammatory cytokines and reinstated the expression of Sirt1 and NF-κB p65. CONCLUSIONS: Scopoletin effectively reverses the adverse behavioral and biochemical effects induced by early-life maternal separation in male mice, suggesting its potential as a therapeutic agent for treating anxiety-like and depression-like behaviors. Modulation of neuroinflammatory pathways and the Sirt1/NF-κB signaling axis is one possible mechanism.


Assuntos
Ansiedade , Comportamento Animal , Depressão , Privação Materna , Camundongos Endogâmicos C57BL , NF-kappa B , Escopoletina , Sirtuína 1 , Animais , Masculino , Ansiedade/tratamento farmacológico , Depressão/tratamento farmacológico , Depressão/metabolismo , Camundongos , NF-kappa B/metabolismo , Escopoletina/farmacologia , Sirtuína 1/metabolismo , Comportamento Animal/efeitos dos fármacos , Transdução de Sinais/efeitos dos fármacos , Hipocampo/efeitos dos fármacos , Hipocampo/metabolismo , Antidepressivos/farmacologia , Modelos Animais de Doenças
20.
Inflammation ; 2024 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-38918333

RESUMO

This study aimed to investigate the therapeutic potential of scopoletin in ulcerative colitis, with a primary focus on its impact on crucial inflammatory pathways and immune responses. A male mouse model of DSS-induced colitis was employed with six distinct groups: a control group, a group subjected to DSS only, three groups treated with varying scopoletin doses, and the final group treated with dexamethasone. The investigation included an assessment of the effects of scopoletin on colitis symptoms, including alterations in body weight, Disease Activity Index (DAI), and histopathological changes in colonic tissue. Furthermore, this study scrutinized the influence of scopoletin on cytokine production, PPARγ and NF-κB expression, NLRP3 inflammasome, and the composition of intestinal bacteria. Scopoletin treatment yielded noteworthy improvements in DSS-induced colitis in mice, as evidenced by reduced weight loss and colonic shortening (p < 0.05, < 0.01, respectively). It effectively diminished TNF-α, IL-1ß, and IL-12 cytokine levels (p < 0.01, p < 0.05), attenuated NLRP3 inflammasome activation and the associated cytokine release (p < 0.05, p < 0.01), and modulated the immune response by elevating PPARγ expression while suppressing NF-κB pathway activation (p < 0.05, p < 0.01). Additionally, scopoletin induced alterations in the gut microbiota composition, augmenting beneficial Lactobacillus and Bifidobacteria while reducing E. coli (p < 0.05). It also enhanced tight junction proteins, signifying an improvement in the intestinal barrier integrity (p < 0.05, < 0.01). Scopoletin is a promising therapeutic agent for managing ulcerative colitis, showing benefits that extend beyond mere anti-inflammatory actions to encompass regulatory effects on gut microbiota and restoration of intestinal integrity.

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