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1.
Sensors (Basel) ; 24(11)2024 Jun 04.
Artículo en Inglés | MEDLINE | ID: mdl-38894418

RESUMEN

Metal-oxide-based gas sensors are extensively utilized across various domains due to their cost-effectiveness, facile fabrication, and compatibility with microelectronic technologies. The copper (Cu)-based multifunctional polymer-enhanced sensor (CuMPES) represents a notably tailored design for non-invasive environmental monitoring, particularly for detecting diverse gases with a low concentration. In this investigation, the Cu-CuO/PEDOT nanocomposite was synthesized via a straightforward chemical oxidation and vapor-phase polymerization. Comprehensive characterizations employing X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), X-ray diffraction (XRD), and micro Raman elucidated the composition, morphology, and crystal structure of this nanocomposite. Gas-sensing assessments of this CuMPES based on Cu-CuO/PEDOT revealed that the response current of the microneedle-type CuMPES surpassed that of the pure Cu microsensor by nearly threefold. The electrical conductivity and surface reactivity are enhanced by poly (3,4-ethylenedioxythiophene) (PEDOT) polymerized on the CuO-coated surface, resulting in an enhanced sensor performance with an ultra-fast response/recovery of 0.3/0.5 s.

2.
Pak J Pharm Sci ; 37(2): 337-347, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38767101

RESUMEN

Heart failure is a condition in which the heart's one or both ventricles are unable to either receive an adequate amount of blood or eject an adequate amount of blood. Diabetes is considered one of the major risk factors for cardiovascular diseases. The current research is designed to evaluate the cardioprotective effects of dapagliflozin in streptozotocin and isoproterenol-induced comorbid rats. The COX-2, TNF-α, NF-КB, NLRP3, PPAR-γ, CKMB, TROP-I, AR, GP and SGLT were docked against dapagliflozin, propranolol and metformin. Dapagliflozin restored adequate blood flow and halted myofibril damage. Moreover, it's evident from this study that dapagliflozin significantly decreased serum concentration of various blood markers, decreased relative growth rate and QT interval prolongation, as compared to the negative control group. However, it improved the ventricular ejection fraction in rats of the treatment group. The GST, GSH and CAT levels were increased, as compared to normal. On the contrary, a decrease in LPO concentrations was observed. Evaluation of the coronal section of heart tissues showed the anti-inflammatory expressions evaluated through H & E staining and immunohistochemical techniques and with ELISA and PCR. In a nutshell, dapagliflozin reverses myocardial necrosis and apoptosis.


Asunto(s)
Compuestos de Bencidrilo , Glucósidos , Insuficiencia Cardíaca , Isoproterenol , Proteína con Dominio Pirina 3 de la Familia NLR , PPAR gamma , Transducción de Señal , Estreptozocina , Animales , Glucósidos/farmacología , Isoproterenol/toxicidad , Insuficiencia Cardíaca/inducido químicamente , Insuficiencia Cardíaca/tratamiento farmacológico , Insuficiencia Cardíaca/metabolismo , Compuestos de Bencidrilo/farmacología , Proteína con Dominio Pirina 3 de la Familia NLR/metabolismo , PPAR gamma/metabolismo , Ratas , Transducción de Señal/efectos de los fármacos , Masculino , Ratas Wistar , Diabetes Mellitus Experimental/tratamiento farmacológico , Cardiotónicos/farmacología , Apoptosis/efectos de los fármacos , Inhibidores del Cotransportador de Sodio-Glucosa 2/farmacología , Miocardio/metabolismo , Miocardio/patología
3.
Heliyon ; 10(9): e30467, 2024 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-38694040

RESUMEN

The current study aimed to investigate the influence of taxifolin on depression symptoms alleviation in Male Sprague-Dawley rats by targeting underlying pathways of depression. Molecular docking analyses were conducted to validate taxifolin's binding affinities against various targets. In silico analysis of taxifolin revealed various aspects of post docking interactions with different protein targets. Depression was induced in rats via intraperitoneal injection of Lipopolysaccharide (LPS; 500 µ g/Kg) for 14 alternative days. Rats (n = 6/group) were randomly assigned to four groups: (i) Saline/Control, (ii) Disease (LPS 500 µg/kg), (iii) Standard (fluoxetine 20 mg/kg), and (iv) Treatment (taxifolin 20 mg/kg). At the end of the in vivo study, brain samples were used for biochemical and morphological analysis. Taxifolin exhibited neuroprotective effects, as evidenced by behavioral studies, antioxidant analysis, histopathological examination, immunohistochemistry, ELISA and RT PCR, indicating an increase number of surviving neurons, normalization of cell size and shape, and reduction in vacuolization. Taxifolin also decreased inflammatory markers such as TNF-α, NF-κb, IL-6 and COX-2, while significantly upregulating and activating the protective PPAR-γ pathway, through which it reduces the oxidative stress, neuroinflammation, neurodegeneration, thereby ameliorating depression symptoms in experimental rat model of depression. Our finding suggests that taxifolin act as neuroprotective agent partially mediated through PPAR-γ pathway.

4.
BMC Pharmacol Toxicol ; 25(1): 32, 2024 May 22.
Artículo en Inglés | MEDLINE | ID: mdl-38778384

RESUMEN

BACKGROUND: Pruritus, or itching, is a distressing symptom associated with various dermatological and systemic diseases. L-carnitine (ßeta hydroxy-γ-tri methyl amino-butyric acid), is a naturally occurring substance, it controls numerous physiological processes. The present research aims to identify L-carnitine for its anti-pruritic effect via nitric oxide-dependent mechanism. METHODS: Chloroquine-induced pruritus serves as an experimental model to investigate possible therapeutic interventions. In this study, we evaluated the efficacy of L-carnitine in combating oxidative stress, nitric oxide, and inflammatory cytokines in a chloroquine-induced pruritus model. RESULTS: L-carnitine treatment significantly reduced scratching behavior compared to the disease group (***P < 0.001 vs. chloroquine group), indicating its antipruritic potential. The markers of oxidative stress, GST, GSH, Catalase, and LPO were dysregulated in the disease model, but administration of L-carnitine restored GST, GSH, and Catalase levels and decreased LPO levels (***P < 0.001 vs. chloroquine group), thereby alleviating oxidative stress. L-carnitine also reduced nitric oxide synthase (NOS) activity, suggesting that it modulates nitric oxide signaling pathways involved in pruritus. In addition, L-carnitine lowered levels of pro-inflammatory cytokines such as tumor necrosis factor-alpha (TNF-α), inflammatory marker nuclear factor kappa B (p-NFκB) and also reduces an inflammatory enzyme, cyclooxygenase-2 (COX-2), determined by ELISA (Enzyme-Linked Immunosorbent Assay) (***P < 0.001 vs. chloroquine group). It downregulates nNOS mRNA expression confirmed by real-time polymerase chain reaction (RT-PCR). CONCLUSION: These findings highlight the therapeutic effects of L-carnitine in alleviating chloroquine-induced pruritus.


Asunto(s)
Carnitina , Cloroquina , Óxido Nítrico , Estrés Oxidativo , Prurito , Cloroquina/farmacología , Cloroquina/uso terapéutico , Prurito/tratamiento farmacológico , Prurito/inducido químicamente , Prurito/metabolismo , Óxido Nítrico/metabolismo , Carnitina/farmacología , Carnitina/uso terapéutico , Animales , Estrés Oxidativo/efectos de los fármacos , Masculino , Antipruriginosos/uso terapéutico , Antipruriginosos/farmacología , Transducción de Señal/efectos de los fármacos , Ratones , Ciclooxigenasa 2/metabolismo , Ciclooxigenasa 2/genética , Citocinas/metabolismo
5.
Cureus ; 16(2): e54420, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38510864

RESUMEN

Introduction Bezoars, masses of indigestible foreign bodies formed in the gastrointestinal tract, pose challenges in their management. Phytobezoars are particularly problematic due to their difficult diagnosis and resilience towards treatment. Recently, Coca-Cola has emerged as a potential solution due to its acidic composition and mucolytic properties. However, existing evidence is limited, highlighting the need for comprehensive studies. This research explores the efficacy of Coca-Cola in dissolving persimmon-related phytobezoars, aiming to contribute valuable insights to non-invasive treatment options. Material and methods Conducted as a descriptive case series, this study employed gastric cola lavage using non-probability purposive sampling. Patients aged 18-70 with persimmon-related phytobezoars were included. Two nasogastric tubes were inserted for cola lavage over 12 hours, utilizing three liters of cola until the disappearance of symptoms. When the bezoar disappeared, it was considered as complete success to the treatment. Results Out of 31 patients, 45.2% were male and 54.8% were female, with a mean age of 56.77 ± 9.01 years. Efficacy was noted in 54.8% of cases. Age less than 50 and no history of diabetes mellitus were associated with higher chances of treatment success (p-value ≤0.05). Conclusion Ingestion of Coca-Cola was highly effective, safe, and reliable for the dissolution of persimmon-related phytobezoars, as the frequency of efficacy was high in our study. Coca-Cola ingestion is a non-invasive and cost-effective mode of phytobezoar dissolution that should be taken as a first-line initial treatment option to attain desired outcomes.

6.
Cureus ; 16(1): e52501, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38371148

RESUMEN

Ingrown toenail (IGTN), known as onychocryptosis or unguis incarnatus, is a painful condition affecting the big toe, with symptoms including pain, inflammation, and infection. This review explores surgical options for IGTN, categorized into altering the nail plate or diminishing periungual tissues. Conservative treatments alleviate early-stage symptoms, while surgical interventions are reserved for severe cases. Various surgical techniques are discussed, such as the Winograd technique, Vandenbos procedure, chemical matricectomy, radiofrequency ablation, bipolar diathermy, carbon dioxide laser ablation, Zadik's procedure, Howard-Dubois procedure, Super U procedure, Noël's procedure, knot technique, and toenail paronychium flap. The choice of procedure depends on the severity and recurrence of IGTN.

8.
Biomed Pharmacother ; 165: 115240, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37531779

RESUMEN

BACKGROUND: Oxidative stress and inflammation play crucial roles in macro/microvascular complications. Phenolic compounds and their derivatives show promise as therapeutic agents for diseases like cancer, metabolic disorders, and cardiovascular diseases. With their antioxidant and anti-inflammatory properties, these compounds hold potential for mitigating vascular complications and improving overall health. METHODOLOGY: This study aimed to assess the therapeutic potential of five 2-methoxy phenol derivatives (T2, T5, T6, T7, and T8) as antioxidants, anti-inflammatory agents, and vasorelaxants using in vitro, in silico, and in vivo approaches. RESULTS: Among all, T2 exhibited substantial antioxidant potential against 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radicals with IC50 (27.97 µg/mL), nitric oxide (NO) radicals (IC50 = 34.36 µg/mL), hydroxyl (OH) radicals (IC50 = 34.83 µg/mL) and Iron chelation (IC50 = 24.32 µg/mL). Molecular docking analysis confirms that all derivatives, particularly T2, exhibit favorable binding energies with the target proteins, ACE (-7.7 Kcal/mol), ECE-1 (-7.9 Kcal/mol), and COX-1 (-7.8 Kcal/mol). All of the compounds demonstrated satisfactory physicochemical and pharmacokinetic characteristics, and showed minimal to no toxicity during in silico, in vitro, and in vivo assessments. In isolated aortic rings from Sprague Dawley rats, pre-contracted with high K+ (80 mM), T2 induced vasorelaxation in dose dependent manner and shifted calcium response curves to the right as compared to verapamil. T2 also showed substantial platelet aggregation inhibition in a dose dependent manner with IC50 21.29 µM. All derivatives except T7 exhibited significant conservation of endogenous antioxidants i.e. catalase (CAT), peroxidase (POD), superoxide dismutase (SOD) and reduced glutathione (GSH) and significantly suppressed serum levels of inflammatory markers i.e. nitric oxide (NO), peroxides (TBARS), interleukin-6 (IL-6) and cyclooxygenase-2 (COX-2). CONCLUSION: The study concludes that T2 has significant antioxidant potential and vasorelaxant effects with adequate pharmacokinetics, making it a promising lead compound for further molecular investigation in cardiovascular disorders.


Asunto(s)
Antioxidantes , Óxido Nítrico , Ratas , Animales , Antioxidantes/uso terapéutico , Óxido Nítrico/farmacología , Simulación del Acoplamiento Molecular , Extractos Vegetales/farmacología , Ratas Sprague-Dawley , Estrés Oxidativo , Antiinflamatorios/farmacología , Fenoles/farmacología
9.
Front Pharmacol ; 14: 1084181, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36923352

RESUMEN

Multidrug resistance and infectious disease have enormous spread despite drug discovery and development advancements. 1, 2, 4 -triazoles have been extensively studied, playing an imperative role in many pathologic conditions. A series of Schiff base triazoles; derived from Indole -3- acetic acid with substituted Benzaldehydes (5a-5g) were designed, synthesized, and evaluated through various Spectroanalytical techniques. SwissADME was used to assess physicochemical properties and pharmacokinetic drug-likeliness behavior. (5a-5g) were evaluated for their varied biological potential through antioxidant, antimicrobial, enzyme inhibition, and cytotoxic evaluation. Schiff bases express drug-like nature as they follow Lipinski's rule of five. 5b showed good antioxidant potential in total antioxidant capacity (TAC) and total reducing power (TRP) assays and was most active in the library in % free radical scavenging assay (%FRSA), showing 32% inhibition at 50 µg/mL concentration. Compounds showed antibacterial activity against various tested strains. 5e and 5f showed a minimum inhibitory concentration (MIC) value of 3.12 µg/mL for P.aeruginosa and K.pneumoniae, respectively. In the antifungal assay, only 5e inhibited one strain with a zone of inhibition >6 mm. These synthetic molecules possess good cytotoxic potential in the Brine Shrimp Lethality screening; 5c, 5d, and 5f exhibited LC50 =5.7 µg/mL. In the protein kinase inhibition assay, 5a, 5b, and 5g demonstrated inhibitory potential, showcasing the zone of inhibition as 7.5-10.5 mm for the bald one and 6-7.5 for the clear zone. These findings suggest that the compounds have antibacterial and cytotoxic potential, and there is a chance for further research and development in this area.

10.
Naunyn Schmiedebergs Arch Pharmacol ; 396(6): 1309-1324, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-36723608

RESUMEN

Migraine is a devitalizing neurovascular disorder that affects millions of people worldwide. This study was directed against the determination of the effectiveness of carvacrol against migraine. In silico results revealed that carvacrol possesses specific scoring values of - 4.4 to - 6 against selected targets. In vivo studies showed that carvacrol (25-50 mg/Kg) decreased migraine pain by reversing thermal allodynia, mechanical allodynia, number of head-scratching, and light phobicity in rats. Levels of glutathione, glutathione-s-transferase, and catalase enhanced in the cortex and trigeminal nucleus caudalis of the animal's brain tissues, i.e., cortex and trigeminal nucleus caudalis with the use of carvacrol, while a significant decrease in lipid peroxide level was seen. Histopathological evaluation showed improvement in cellular architecture and a decrease in expression of certain inflammatory markers such as tumor necrosis factor-alpha, nuclear factor kappa B, interleukin-18, and prostaglandin E2 validated by enzyme-linked immune sorbent assay, immunohistochemistry, and western blot analysis. This study indicates that carvacrol exhibits binding affinities against different targets involved in migraine pathology and possesses anti-migraine action, mediated through anti-inflammatory and anti-oxidant pathways.


Asunto(s)
Trastornos Migrañosos , Ratas , Animales , Cimenos , Trastornos Migrañosos/tratamiento farmacológico , Hiperalgesia , Glutatión
11.
Cureus ; 15(12): e50281, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38196411

RESUMEN

Introduction Accurate and comprehensive documentation of surgical procedures is vital in healthcare for both medical and legal purposes. This audit assessed adherence to international guidelines for operative note documentation in a general surgery department and the impact of introducing educational initiatives and an enhanced proforma. Methods A retrospective audit of 100 operative notes was conducted in April 2023, followed by a prospective re-audit of another 100 notes in October-November 2023. A checklist based on Royal College of Surgeons (RCS) guidelines assessed 20 parameters. An improved proforma and an awareness session for surgeons were implemented between audits. Data analysis utilized the IBM SPSS Statistics for Windows, Version 26.0 (Released 2019; IBM Corp., Armonk, New York, United States). A paired-sample t-test was used, and a p-value < 0.001 was considered statistically significant. Results The initial audit revealed discrepancies in documentation, with missing information on deep vein thrombosis (DVT) prophylaxis, elective/emergency settings, anticipated blood loss, closure technique specifics, and prosthesis/mesh details. Legibility was satisfactory in 88% of notes. After implementing the proforma and awareness session, significant improvements were observed in all parameters, with documentation rates exceeding 91%. Overall documentation completeness increased from 65.2% to 95.2%. Results of the paired-sample t-test indicated a significant difference before and after the introduction of the new proforma (Mean (M) = 65.2, standard deviation (SD) = 34.3 versus M = 95.2, SD = 4.3) with a p-value of 0.0005. Conclusion Regular audits, surgeon education, and standardized proformas are essential for maintaining high standards in operative note documentation, contributing to improved patient care and safety.

12.
Iran J Basic Med Sci ; 25(12): 1504-1512, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36544525

RESUMEN

Objectives: Carveol is a naturally occurring terpenoid with antispasmodic, carminative, astringent, indigestion, and dyspepsia properties, as well as anti-diabetic, anti-oxidant, anti-hyperlipidemia, and anti-inflammatory properties in the liver. Research also suggests that it has memory-enhancing and anti-oxidant properties. The purpose of this research was to see whether carveol could protect rats against scopolamine-induced memory loss in a rat model. Materials and Methods: Thirty male Sprague-Dawley rats (200-250 g) were grouped as the saline group receiving saline, disease group receiving scopolamine, and four treatment groups among which three groups received scopalamine+carveol and one group received scopalamine+donepezil for 28 days. Followed by in vitro, behavioral, anti-oxidant, and molecular studies were done. P<0.005 was considered statistically significant. Results: The in vitro assay showed that carveol caused diphenyl-1-picrylhydrazyl inhibition. In-vivo findings revealed that carveol (50, 100, and 200 mg/kg) significantly improved dementia by reducing escape latency and spending more time in the targeted quadrant in the Morris water maze test. Increased number of entries and percent spontaneous alterations were observed in rats' Y-maze test. In animal brain tissues, i.e., cortex and hippocampus, carveol enhanced glutathione, glutathione-s-transferase, catalase, and reduced lipid peroxide levels. Carveol also improved cellular architecture in histopathological examinations and decreased expression of inflammatory markers such as amyloid-beta, nuclear factor kappa light chain activated B cells, tumor necrosis factor-alpha, cyclooxygenase 2, prostaglandin E2, and interleukin-18, as evidenced by immunohistochemistry and enzyme-linked immunosorbent assays, as well as molecular investigations. Conclusion: This study suggests that the compound could be potent against amnesia mediated through anti-oxidant, amyloid-beta inhibition, and anti-inflammatory pathways.

13.
Front Pharmacol ; 13: 1005154, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36467058

RESUMEN

Aim and objectives: This study aimed to establish a pharmacological basis for evaluating the effects of bergapten (5-methoxypsoralen) in gastrointestinal diseases and assessment of its toxicological profile. Methods: The pharmacokinetic profile was evaluated using the SwissADME tool. AUTODOCK and PyRx were used for evaluating the binding affinities. The obtained results were further investigated for a post-dock analysis using Discovery Studio Visualizer 2016. The Desmond software package was used to conduct molecular dynamic simulations of best bound poses. Bergapten was further investigated for antidiarrheal, anti-secretory, charcoal meal transit time, anti-ulcer, anti-H. pylori activity. Results: Bergapten at a dose of 50, 100, and 200 mg/kg was proved effective in reducing diarrheal secretions, intestinal secretions, and distance moved by charcoal meal. Bergapten at the aforementioned doses acts as a gastroprotective agent in the ethanol-induced ulcer model that can be attributed to its effectiveness against H. pylori. Bergapten shows concentration-dependent relaxation of both spontaneous and K+ (80 mM)-induced contractions in the isolated rabbit jejunum model; the Ca2+ concentration-response curves (CRCs) were shifted to the right showing potentiating effect similar to papaverine. For molecular investigation, the H+/K+ ATPase inhibitory assay indicated inhibition of the pump comparable to omeprazole. Oxidative stress markers GST, GSH, and catalase showed increased expression, whereas the expression of LPO (lipid peroxidation) was reduced. Histopathological examination indicated marked improvement in cellular morphology. ELISA and western blot confirmed the reduction in inflammatory mediator expression. RT-PCR reduced the mRNA expression level of H+/K+ ATPase, confirming inhibition of the pump. The toxicological profile of bergapten was evaluated by an acute toxicity assay and evaluated for behavioral analysis, and the vital organs were used to analyze biochemical, hematological, and histopathological examination. Conclusion: Bergapten at the tested doses proved to be an antioxidant, anti-inflammatory, anti-ulcer, and antidiarrheal agent and relatively safe in acute toxicity assay.

14.
ACS Omega ; 7(50): 46358-46370, 2022 Dec 20.
Artículo en Inglés | MEDLINE | ID: mdl-36570195

RESUMEN

Diabetes mellitus (DM) is a complex and multiple group of disorders, and understanding the molecular mechanisms is a key role in identifying various markers involved in the diagnosis of the disease. Brucine is derived from the seeds of Strychnos nux-vomica L. (Loganiaceae), which has been used in traditional medicine to cure a variety of ailments, such as chronic rheumatism, nervous system diseases, dyspepsia, gonorrhea, anemia, and bronchitis, and has analgesic, anti-inflammatory, anti-oxidant, anti-snake venom, and anti-diabetic properties. The anti-diabetic potential of brucine was studied utilizing in vitro, in silico, in vivo, and molecular methods, including streptozotocin-induced diabetic rat models, α-glucosidase and α-amylase inhibitory assays, and via Auto-DocVina software. Brucine exhibits binding affinities of -5.0 to -10.1 Kcal/mol against chosen protein targets, according to an in silico investigation. In vitro studies revealed that brucine inhibited the enzymes α-amylase and α-glucosidase, and brucine (20 mg/kg) reduced blood glucose levels, oral glucose tolerance overload, body weight, glycosylated hemoglobin levels, total cholesterol, triglycerides, low-density lipoprotein, alanine transaminase, aspartate aminotransferase, total bilirubin, and alkaline phosphatase and elevated high-density lipoprotein levels in in vivo studies. The brucine binding energy against certain protein targets ranges from -5.0 to -10.1 Kcal/mol. It has anti-diabetic, anti-hyperlipidemic, hepatoprotective, anti-oxidant, and anti-inflammatory properties, which are mediated via inhibition of α-glucosidase and α-amylase.

15.
Int J Neurosci ; : 1-17, 2022 Oct 28.
Artículo en Inglés | MEDLINE | ID: mdl-36259511

RESUMEN

Backgound: Alzheimer disease (AD) is a disastrous disease characterized by accretion of amyloid-beta plaques, neurofibrillary tangles inducing oxidative stress, loss of neuronal functions and continuous progression of cognitive impairment leading to severe dementia.Material and Methods: The newly synthesized benzimidazole derivative 4-chloro-3-(2-phenyl-1H-benzimidazole-1-sulfonyl) benzoic acid (CB) was evaluated for its anti-Alzheimer activity using in silico, in vivo, in vitro and molecular techniques (ELISA, WB & IHC).Results: In-silico studies revealed that CB has atomic contact energy values of -3.9 to -8.9 kcal/mol against selected targets. In vitro assay showed that CB caused acetylcholinesterase (AChE) and diphenyl-1-picrylhydrazyl inhibition. In-vivo findings revealed improvement in dementia as observed in the morris water maze test and Ymaze test. Amyloid-beta disaggregation, increased level of anti-oxidants, decreased expressions of inflammatory markers and enhanced cellular architecture were found in the cortex and hippocampus of treated rats in the histopathological examination, immunohistochemistry analysis, enzyme-linked immunosorbent assay and western blot analysis.Conclusions: This study revealed that CB possess different binding affinities with the Alzheimer-related targets and it possess anti-Alzheimer activity, mediated via AChE and amyloid-beta inhibition, anti-oxidant and anti-inflammatory pathways.

16.
Front Pharmacol ; 13: 1019033, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36278164

RESUMEN

Diabetic neuropathy (DN) is a serious microvascular complication of diabetes mellitus (DM) that impacts the nervous system. Several risk factors are involved in the progression and maintenance of DN-associated pain, such as higher expression of various inflammatory mediators, e.g., tumor necrotic factor-alpha (TNF-α), nuclear factor-kappa B (NF-κB), and cyclo-oxygenase-2 (COX-2). The present research explores the neuroprotective potential of natural isolates, including berbamine, bergapten, and carveol, on the DM-induced neuroinflammation and neurodegeneration that cause neuropathic pain. The study utilized computerized techniques, including computational analysis (a docking assay and a molecular dynamic simulation) before moving to in vivo protocols. Diabetic neuropathy was induced by intraperitonial injection (IP) of streptozotocin (65 mg/kg), and the animal subjects (rats) were kept for 4 weeks for the development of DN. Once diabetic neuropathy was confirmed, the subjects were treated with berbamine, bergapten, and carveol until the sixth week (i.e., 2 weeks of treatment). At the sixth week, the rats were sacrificed, and the sciatic nerve and spinal cord of each was collected for further molecular investigation. Docking and a molecular dynamic simulation (MDS) delivered the information that the natural compounds (berbamine, bergapten, and carveol) were interacting with the selected target protein (i.e., mitogen-activated protein kinase). After IP, it was found that berbamine, bergapten, and carveol had ameliorated mechanical allodynia and thermal hyperalgesia by the 28th day of the study (2 weeks after treatment) without affecting blood glucose levels. Berbamine, bergapten, and carveol markedly elevated the levels of glutathione (GSH) and glutathione s-transferase (GST), in both the sciatic nerve and spinal cord, and also reduced lipid peroxidase (LPO) and nitric oxide (NO). The abovementioned natural isolates reduced pathologic alterations provoked through DN, a finding confirmed through histopathological assays (hematoxylin and eosin staining and immuno-histochemical analysis). Treatment down regulated higher expressions of the inflammatory mediatorcyclooxygenase-2 (COX-2), tumor necrosis factor-α (TNF-α), and nuclear factor kappa B (NF-κB), as confirmed by ELISA and polymerase chain reaction (PCR). The outcomes of berbamine, bergapten, and carveol are compared with those of pregabalin as a positive control group. Compared to pregabalin, treatment with the aforementioned three natural compounds improved nociception and reduced hyperalgesic effects, and consequently reduced pain perception and inflammation. Our results suggest the mechanism for the neuro-protective impact of berbamine, bergapten, and carveol might possibly be arbitrated via COX-2, TNF-α, and NF-κB, and regulated by mitogen-activated protein kinase, ultimately ameliorating STZ-provoked, DM-induced neuroinflammation and neurodegeneration, and associated neuropathic pain.

17.
Front Pharmacol ; 13: 936161, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36052146

RESUMEN

This present study aims to delineate Rumex dentatus crude extract (Rd.Cr), n-Hexane, ethyl acetate, aqueous fractions (Rd.n-Hex, Rd.ETAC, and Rd.Aq), and emodin for antidiarrheal, antisecretory effects, anti-spasmodic, gastrointestinal transient time, anti-H. pylori, antiulcer effects, and toxicology. Plant extracts attributed dose-dependent protection against castor oil-induced diarrhea and dose-dependently inhibited intestinal fluid secretions in mice. They decreased the distance transverse by charcoal in the gastrointestinal transit model in rats. In rabbit jejunum preparations, it causes a concentration-dependent relaxation of both spontaneous and K+ (80 mM)-induced contraction, Rd.n-Hex and verapamil were relatively potent against K+-induced contractions and shifted the Ca2+ concentration-response curves (CRCs) to the right, Rd.Cr and Rd.ETAC shifted the isoprenaline-induced inhibitory CRCs to the left, showing potentiating effect similar to papaverine. Rd.n-Hex showed anti-H. pylori effect. Extracts and emodin also show an inhibitory effect against H+/K+-ATPase. Rumex dentatus showed a gastroprotective and antioxidant effect. Histopathological evaluation showed improvement in cellular architecture and decrease in the expression of inflammatory markers such as cyclooxygenase (COX2), tumor necrosis factor (TNF-α), and phosphorylated nuclear factor kappa B (p-NFƙB), validated through immunohistochemistry, ELISA, and western blot techniques. In RT-PCR, it decreases H+/K+-ATPase mRNA levels. Rumex dentatus was analyzed for certain safety aspects and exhibited a relative safety profile as no impairment was observed in kidneys, heart, liver, and brain further assisted by biochemical and hematological analysis. Docking studies revealed that emodin against H+/K+-ATPase pump and voltage gated L-type calcium channel showed E-value of -7.9 and -7.4 kcal/mol, respectively. MD simulations and molecular mechanics Poisson Boltzmann surface area and molecular mechanics Generalized Born surface area MMPBSA/GBSA findings are consistent with the in-vitro, in-vivo, and docking results. In conclusion, Rumex dentatus extracts and its phytoconstituent could be considered a potent antioxidant and anti-inflammatory drug candidates that possess anti-diarrheal, anti-secretary, antispasmodic, anti-H. pylori, and anti-ulcer potential. Toxicity studies were done according to OECD standards 425. It belongs to group 5 (LD50 > 2000 mg/kg), which suggests that it is in the lower toxicity class.

18.
Front Pharmacol ; 13: 886433, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36059979

RESUMEN

Gastric ulcer is one of the most common chronic gastrointestinal diseases characterized by a significant defect in the mucosal barrier. The current study has been conducted to evaluate the brucine anti-ulcer effect. Brucine has binding energy values ranging from -2.99 to -8.11 kcal/mol against chosen targets, according to in silico research. Brucine exhibits an inhibitory effect against Helicobacter pylori. In vivo findings revealed that brucine (3 mg/kg) showed effective results in healing ethanol-induced ulcer lesions of the gastric region in rats. Brucine showed an inhibitory effect against H+/K+-ATPase. Levels of glutathione, glutathione-s-transferase, and catalase were enhanced in the gastric rat tissue with the use of brucine, while a significant decrease in lipid peroxide levels was seen. Histopathological evaluation showed improvement in cellular architecture and a decrease in inflammatory indicators like cyclooxygenase, tumor necrosis factor, and nuclear factor kappa B expression, validated through immunohistochemistry, enzyme-linked immunosorbent assay, and Western blot techniques. In the reverse transcription-polymerase chain reaction, brucine decreased H+/K+-ATPase mRNA levels. This study reveals that brucine possesses stable binding affinities against selected targets. Brucine exhibits an anti-ulcer effect, mediated via anti-H. pylori, H+/K+-ATPase inhibition, and antioxidant and anti-inflammatory pathways.

19.
Molecules ; 27(18)2022 Sep 12.
Artículo en Inglés | MEDLINE | ID: mdl-36144661

RESUMEN

This present study aimed to delineate Rumex hastatus D. Don crude extract (Rh.Cr), n-Hexane, ethyl acetate, aqueous fractions (Rh.n-Hex, Rh.ETAC, Rh.Aq) and rutin for antidiarrheal, antisecretory effects, anti-spasmodic, gastrointestinal transient time, anti H. pylori, antiulcer effects, and toxicology. The preliminary phytochemical analysis of Rumex hastatus showed different phytoconstituents and shows different peaks in GC-MC chromatogram. Rumex hastatus crude extract (Rh.Cr), fractions, and rutin attributed dose-dependent (50-300 mg/kg) protection (0-100%) against castor oil-induced diarrhea and dose-dependently inhibited intestinal fluid secretions in mice. They decreased the distance traversed by charcoal in the gastrointestinal transit model in rats. In rabbit jejunum preparations, Rh.Cr and Rh.ETAC caused a concentration-dependent relaxation of both spontaneous and K+ (80 mM)-induced contractions at a similar concentration range, whereas Rh.n-Hex, rutin, and verapamil were relatively potent against K+-induced contractions and shifted the Ca2+ concentration-response curves (CRCs) to the right, Rh.Cr (0.3-1 mg/mL) and Rh.ETAC (0.1-0.3 mg/mL) shifted the isoprenaline-induced inhibitory CRCs to the left. Rh.n-Hex, Rh.ETAC and rutin showed anti-H. pylori effect, also shows an inhibitory effect against H+/K+-ATPase. Rumex hastatus showed gastroprotective and antioxidant effects. Histopathological evaluation showed improvement in cellular architecture and a decrease in the expression of inflammatory markers such as, cyclooxygenase (COX-2), tumor necrosis factor (TN,F-α) and phosphorylated nuclear factor kappa B (p-NFƙB), validated through immunohistochemistry and ELISA techniques. In RT-PCR it decreases H+/K+-ATPase mRNA levels. Rumex hastatus was found to be safe to consume up to a dose of 2000 mg/kg in a comprehensive toxicity profile. Docking studies revealed that rutin against H+/K+-ATPase pump and voltage-gated L-type calcium channel showed E-values of -8.7 and -9.4 Kcal/mol, respectively. MD simulations Molecular Mechanics Poisson Boltzmann surface area and molecular mechanics Generalized Born surface area (MMPBSA/GBSA) findings are consistent with the in-vitro, in-vivo and docking results.


Asunto(s)
Enfermedades Gastrointestinales , Rumex , Animales , Ratones , Conejos , Ratas , Adenosina Trifosfatasas , Antidiarreicos/química , Antioxidantes/farmacología , Canales de Calcio Tipo L , Aceite de Ricino , Carbón Orgánico/farmacología , Ciclooxigenasa 2 , Enfermedades Gastrointestinales/tratamiento farmacológico , Isoproterenol/farmacología , Yeyuno , FN-kappa B/farmacología , Parasimpatolíticos/farmacología , Fitoquímicos/farmacología , Extractos Vegetales/química , Extractos Vegetales/farmacología , ARN Mensajero , Rumex/química , Rutina/farmacología , Factores de Necrosis Tumoral , Verapamilo/farmacología
20.
Molecules ; 27(15)2022 Aug 02.
Artículo en Inglés | MEDLINE | ID: mdl-35956877

RESUMEN

The current study explored the effects of natural compounds, berbamine, bergapten, and carveol on paclitaxel-associated neuroinflammatory pain. Berbamine, an alkaloid obtained from BerberisamurensisRuprhas been previously researched for anticancer and anti-inflammatory potential. Bergapten is 5-methoxsalenpsoralen previously investigated in cancer, vitiligo, and psoriasis. Carveol obtained from caraway is a component of essential oil. The neuropathic pain model was induced by administering 2 mg/kg of paclitaxel (PTX) every other day for a week. After the final PTX injection, a behavioral analysis was conducted, and subsequently, tissue was collected for molecular analysis. Berbamine, bergapten, and carveol treatment attenuated thermal hypersensitivity, improved latency of falling, normalized the changes in body weight, and increased the threshold for pain sensation. The drugs increased the protective glutathione (GSH) and glutathione S-transferase (GST) levels in the sciatic nerve and spinal cord while lowering inducible nitric oxide synthase (iNOS) and lipid peroxidase (LPO). Hematoxylin and eosin (H and E) and immunohistochemistry (IHC) examinations confirmed that the medication reversed the abnormal alterations. The aforementioned natural substances inhibited cyclooxygenase-2 (COX-2), tumor necrosis factor-alpha (TNF-α), and nuclear factor kappa B (NF-κb) overexpression, as evidenced by enzyme-linked immunosorbant assay (ELISA) and Western blot and hence provide neuroprotection in chronic constriction damage.


Asunto(s)
Dolor Crónico , Neuralgia , Fármacos Neuroprotectores , 5-Metoxipsoraleno/uso terapéutico , Dolor Crónico/tratamiento farmacológico , Humanos , FN-kappa B/metabolismo , Neuralgia/inducido químicamente , Neuralgia/tratamiento farmacológico , Fármacos Neuroprotectores/farmacología , Fármacos Neuroprotectores/uso terapéutico , Óxido Nítrico Sintasa de Tipo II/metabolismo , Paclitaxel/efectos adversos , Factor de Necrosis Tumoral alfa/metabolismo
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