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1.
J Environ Pathol Toxicol Oncol ; 40(1): 75-84, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33639075

RESUMO

Parkinson's disease (PD) is the second most common neurodegenerative disease worldwide. Tomentosin is an active compound isolated from the I. viscosa plant that has extensive therapeutic value. In this exploration, the neuroprotective actions of tomentosin were investigated against MPTP-stimulated neuroinflammation in mice. PD was stimulated in C57/BL6 mice by injecting 20-mg/kg MPTP at 2-h intervals 4 times a day for 15 days simultaneously with tomentosin treatment. The rota-rod test, grasping test, and pole climbing test were executed to investigate the motor functioning of the test animals. Proinflammatory cytokines, reactive oxygen species, and myeloperoxidase were assayed using commercial ELISA kits. Superoxide dismutase enzyme levels were measured by the standard method. Expression of TLR-4/NF-κB was analyzed by Western blot. Brain tissues of investigational animals were analyzed microscopically. Tomentosin treatment of the MPTP-intoxicated PD mice promoted appreciable regains in body weight and noticeably prevented MPTP-stimulated impairments in motor function. In the PD mice, proinflammatory cytokine, ROS, and MPO levels were lowered by tomentosin, inhibited the TLR-4/NF-κB signaling pathway and prevented inflammation-mediated neuronal cell damage, and reduced glial cell damage and normalized ganglion layers. These findings confirmed the neuroprotective properties of tomentosin against MPTP-induced PD in mice.

2.
BMC Womens Health ; 21(1): 65, 2021 Feb 12.
Artigo em Inglês | MEDLINE | ID: mdl-33579263

RESUMO

BACKGROUND: Despite the fact that cervical cancer is preventable and curable in the early stages, it still remains to be a major public health problem in India. This study was conducted to assess the knowledge and awareness regarding the Human Papilloma Virus (HPV) vaccination among health care professionals working in a tertiary care hospital in urban India. METHODS: To this aim, we conducted a cross-sectional study among 318 health care professionals working in tertiary hospitals across Chennai, Tamil Nadu, India. Our research group designed a structured questionnaire with 31 items to assess the knowledge and attitudes on cervical cancer, its prevention, and HPV vaccination. RESULTS: Among the 318 respondents, 90.6% were aware of cervical cancer, 83.3% were aware that PAP (Papanicolaou) smear test detects cervical cancer, and 86.2% of the respondents knew that HPV causes cervical cancer. 29.2% of the eligible respondents underwent the screening against cervical cancer, and 19.8% of the study participants were vaccinated for HPV. Only 34.9% know that the HPV vaccine could be given to boys. The most common reason for not being vaccinated against HPV was the lack of awareness. In our study, 77.2% of the respondents were willing to be vaccinated and recommend HPV vaccination to their family members. CONCLUSION: From this study, it was evident that there is a lack of awareness about HPV vaccination and its importance in preventing cervical cancer among healthcare professionals. Our finding clearly establishes the need to devise intervention programs to promote vaccination against HPV and periodical screening for cervical cancer among healthcare professionals.

3.
J Biochem Mol Toxicol ; : e22733, 2021 Feb 18.
Artigo em Inglês | MEDLINE | ID: mdl-33605003

RESUMO

The untreated systemic chronic inflammation leads to autoimmune diseases, hyperglycemia, cardiovascular diseases, type 2 diabetes, hypertension, osteoporosis, and so on. Phytochemicals effectively inhibit the inflammation, and numerous studies have proved that the phytocomponents possess anti-inflammatory property via inhibiting the cyclooxygenase and lipoxygenase signaling pathways. Rhaponticin is one such phytochemical obtained from the perennial plant Rheum rhaponticum L. belonging to Polygonaceae family. We assessed the anti-inflammatory potency of rhaponticin in endothelial cells induced with lipopolysaccharides (LPS). Four different endothelial cells induced with LPS were treated with rhaponticin and assessed for the nitric oxide generation. The cytotoxic potency of rhaponticin was evaluated in endothelial cells using the 3-(4,5-dimethylthizaol-2yl)-2,5-diphenyl tetrazolium bromide assay. The tumor necrosis factor-α (TNF-α) synthesis was quantified using the commercially available assay kit. The inflammatory signaling protein gene expression of TNF-α, inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX2), and interleukin-1ß (IL-1ß) was analyzed with quantitative polymerase chain reaction (PCR) analysis. The gene expression of NADPH oxidase (NOX) cytoplasmic catalytic subunits gp91phox , p47phox , and p22phox was assessed with real-time PCR analysis. Finally, to confirm the anti-inflammatory potency of rhaponticin, the nuclear factor kappa B (NFκB) and mitogen-activated protein kinase (MAPK) signaling protein expression was analyzed with immunoblotting analysis. Rhaponticin treatment significantly decreased the levels of nitric oxide and TNF-α synthesis in LPS-induced endothelial cells. It significantly decreased the gene expression of inflammatory proteins and NOX signaling protein. The protein expression of NFκB and MAPK signaling proteins was drastically decreased in rhaponticin-treated endothelial cells induced with LPS. Overall, our results confirm that rhaponticin effectively inhibited the inflammation triggered by LPS in endothelial cells via downregulating iNOS, COX2, and NFκB and MAPK signaling pathways.

4.
Environ Toxicol ; 2021 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-33522684

RESUMO

This work focuses on evaluating the therapeutic ability of betalain and its causal mechanisms in NSCLC both in vivo and in vitro. The experimental results demonstrated that betalain was able to reduce the viability of A549 cells dose dependently with undetectable toxicity toward normal human cells. Betalain also augmented the apoptotic cells of A549 and cell cycle arrest which was evidenced via increased in level of p53/p21 and decreasing levels of cyclin-D1 complex. Moreover, betalain also reduced the levels of p-PI3K, p-Akt, and mammalian target of rapamycin significantly, justifying the pro-apoptotic effect on A549 cells. The in vivo anticancer activity of betalain was determined further in nude mice injected with A549 cells. Xenograft in vivo experiments confirmed betalain administration of ameliorates the expression of pro-inflammatory cytokines, tumor markers with reduced toxic effect. Accordingly, this combined study provides significant insight on betalain as a therapeutic agent.

5.
J Biochem Mol Toxicol ; : e22700, 2021 Jan 09.
Artigo em Inglês | MEDLINE | ID: mdl-33421271

RESUMO

Nasopharyngeal cancer is a malignancy developing from the nasopharynx epithelium due to smoking and nitrosamine-containing foods. Nasopharyngeal cancer is highly endemic to Southeast Asia. Eugenol and piperine have shown many anticancer activities on numerous cancer types, like colon, lung, liver, and breast cancer. In this study, we amalgamated eugenol and piperine loaded with a polyhydroxy butyrate/polyethylene glycol nanocomposite (Eu-Pi/PHB-PEG-NC) for better anticancer results against nasopharyngeal cancer (C666-1) cells. In the current study, nasopharyngeal cancer cell lines C666-1 were utilized to appraise the cytotoxic potential of Eug-Pip-PEG-NC on cell propagation, programmed cell death, and relocation. Eu-Pi/PHB-PEG-NC inhibits cellular proliferation on C666-1 cells in a dose-dependent manner, and when compared with 20 µg/ml, 15 µg/ml of loaded mixture evidently restrained the passage aptitude of C666-1 cells, this was attended with a downregulated expression of mitochondrial membrane potential. Treatment with 15 µg/ml Eu-Pi/PHB-PEG-NC suggestively amplified cell apoptosis in the C666-1 cells. Furthermore, its cleaved caspase-3, 8, and 9 and Bax gene expression was augmented and Bcl-2 gene expression was diminished after Eu-Pi/PHB-PEG-NC treatment. Additionally, our data established that the collective effect of Eu-Pi/PHB-PEG-NC loaded micelles inhibited the expansion of C666-1 cells augmented apoptosis connected with the intrusion of PI3K/Akt/mTOR signaling pathway.

6.
Mater Sci Eng C Mater Biol Appl ; 119: 111656, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33321686

RESUMO

Development of biologically inspired green synthesis of silver nanoparticles has been extensively scrutinized owing to its uses in biomedical industry. In the last two decades, the demands of nanomaterial in bone remodelling have increased. Scutellaria baicalensis is a flowering plant usually used for many ailments. This work explores the zinc oxide nanoparticles (ZnO NPs) by green route method from S. baicalensis and the therapeutic potentials of Sb-ZnONPs on differentiation of osteoblast and osteoclast formation inhibition. The characterization of the fabricated ZnO-NPs from S. baicalensis was done via different spectroscopic and microscopic techniques; ultraviolet-visible spectroscopy (UV-Vis), Fourier transform-infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), and dynamic light scattering (DLS). The Osteogenic-related tests (MTT, Mineralization assay and Real-time PCR) were used to evaluate the properties of SB-ZnONPs on the growth and proliferation of human osteoblast-like MG-63 cells. The characterization of SB-ZnONPs discovered the crystalline properties with high zinc content and the existence of bioactive mixtures from S. baicalensis extract. In addition, SB-ZnONPs showed insignificant cytotoxicity with enhanced differentiation, proliferation, and mineralization on MG-63 cells. Overall, these results denote that SB-ZnONPs is expected to be a natural source for the development of medical agents to in bone healing and remodelling.

7.
Biomed Res Int ; 2020: 5764017, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33381558

RESUMO

Sleep plays an important role in maintaining neuronal circuitry, signalling and helps maintain overall health and wellbeing. Sleep deprivation (SD) disturbs the circadian physiology and exerts a negative impact on brain and behavioural functions. SD impairs the cellular clearance of misfolded neurotoxin proteins like α-synuclein, amyloid-ß, and tau which are involved in major neurodegenerative diseases like Alzheimer's disease and Parkinson's disease. In addition, SD is also shown to affect the glymphatic system, a glial-dependent metabolic waste clearance pathway, causing accumulation of misfolded faulty proteins in synaptic compartments resulting in cognitive decline. Also, SD affects the immunological and redox system resulting in neuroinflammation and oxidative stress. Hence, it is important to understand the molecular and biochemical alterations that are the causative factors leading to these pathophysiological effects on the neuronal system. This review is an attempt in this direction. It provides up-to-date information on the alterations in the key processes, pathways, and proteins that are negatively affected by SD and become reasons for neurological disorders over a prolonged period of time, if left unattended.

8.
BMC Complement Med Ther ; 20(1): 356, 2020 Nov 23.
Artigo em Inglês | MEDLINE | ID: mdl-33225920

RESUMO

BACKGROUND: The present study establishes the cardioprotective role of Thraatchathi Chooranam (TC), a polyherbal traditional Siddha medicine, in terms of membrane stabilizing and antioxidant properties in isoproterenol (ISO) induced myocardial necrosis model in rats. METHODS: Animals were divided into six groups (n = 6), normal (received vehicle 0.5% CMC, p.o.), ISO control (received 0.5% CMC + ISO 120 mg/kg, b.w. s.c. twice at an interval of 48 h), standard control (received Vit-E 100 mg/kg, p.o.) + ISO, TC low and high dose (50 and 100 mg/kg p.o., respectively) + ISO, and drug control (received TC at 100 mg/kg, p.o.). At the end of experimental period, blood samples collected and plasma cardiac troponin-I (CTn-I) was measured by ELISA. Cardiac tissues were isolated, levels of membrane stabilizing enzymes, antioxidants and inflammatory markers were estimated. Gene expression of Bax, Bcl2, Caspase 3, HIF-α, TNF-α, iNOS, TRX1 and TrxR were performed by RT-PCR. Histopathological studies on cardiac tissues were conducted using hematoxylin and eosin (H&E) stain. Statistical analyses were performed by one-way ANOVA followed by Tukey's multiple comparison as post-hoc test. RESULTS: Administration of ISO resulted in a significant increase in plasma CTn-I, decrease in superoxide dismutase, glutathione and glutathione peroxidase; it also significantly altered membrane stabilizing enzymes like Na+/K+-ATPase, Mg2+-ATPase Ca2+-ATPase and Cathepsin D. Pretreatment with TC (50 mg/kg and 100 mg/kg) decreased CTn-I, and improved membrane stabilizing and endogenous antioxidant enzymes and decreased cathespin D level in a dose dependent manner. Histopathological examination revealed that TC improves cellular membrane integrity and decreases inflammatory cell infiltration and necrotic death. CONCLUSION: The present study provided a strong evidence on the protective effects of TC against ISO-induced myocardial necrosis in rats.

9.
Crit Rev Food Sci Nutr ; : 1-8, 2020 Oct 27.
Artigo em Inglês | MEDLINE | ID: mdl-33107328

RESUMO

Breast cancer (BC) is a foremost type of cancer in women globally with an increased mortality rate in developing countries. Information regarding hereditary factors, lifestyle, work environment, food habits, and personal history could be useful in diagnosing breast cancer. Among such food habits, the reuse of edible oil for preparing food is a common practice in any developing country. The repeated heating of oils enhances the oxidative degradation of oil to produce polyaromatic hydrocarbons (PAH) which could disrupt the redox balance and generate reactive oxygen species. These reactive toxic intermediates can lead to BRCA1 mutations that are responsible for breast cancer. Mutations in DNA are the main cause for the conversion of proto-oncogenes into oncogenes which leads to change in expression and an increase in cell proliferation wherein a normal cell gets transformed into a malignant neoplastic cell. This review summarizes the possible mechanism involved in the induction of breast cancer due to repeated heating of edible.

10.
Artif Cells Nanomed Biotechnol ; 48(1): 1206-1213, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33016139

RESUMO

Colon cancer is one of the major prevailing types of cancer worldwide. It has been the most important public health difficulty. Thus, we planned phytoconstituents arbitrated synthesis of gold nanoparticles (AuNPs) and examined their curative efficacy against the colon cancer (HCT-116) cells. In this current study, we formulated the AuNPs by using Albizia lebbeck (AL) aqueous leaf extract by the green method and synthesized AL-AuNPs were distinguished by UV-visible spectroscopy (UV-vis), energy dispersive X-ray diffraction (XRD), selected area (electron) diffraction (SAED) pattern, Fourier transform infrared spectroscopy (FTIR) and high-resolution transmission electron microscopy (HR-TEM). Synthesized AL-AuNPs confirmed by the UV absorption highest at 535 nm and the crystal structure of AL-AuNPs was additionally established by XRD and SAED pattern. HR-TEM images explained the size and morphology allocation of nanoparticles. FTIR analysis confirmed the presence of alkynes, aromatic compounds, and alkenes of biomolecules in AL-AuNPs. Furthermore, AL-AuNPs induced cytotoxicity at the IC50 concentration 48 µg/ml and also induced apoptosis by enhanced ROS production, decreased ΔΨm, apoptotic morphological changes by AO/EtBr and altering pro and anti-apoptotic protein expressions were analyzed in HCT-116 colon cancer cells. The findings of this investigation proved that the AL-AuNPs were revealed the potential anticancer activity against colon cancer (HCT-116) cells.

11.
Saudi J Biol Sci ; 27(10): 2632-2637, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32994721

RESUMO

Background: Prostate cancer (PCA) is a frequent cancer that mainly affects the men. Studying growth feature pathways modified during PCA development may facilitate researchers to expand embattled therapeutic strategies for prostate cancer. In present study, we examined the anticancer potentials of Ganoderma lucidum against the prostate cancer (PC-3) cells by inflection of JAK-1/STAT-3 signalling pathway. Methods: The cytotoxicity of G. lucidum against the PC-3 cells was examined by MTT assay. The ROS production was monitored by using DCFH-DA staining. The apoptotic morphological alterations stimulatory potential of G. lucidum on PC-3 cells was inspected through the dual staining. The expression of Bcl-2, JAK-1, STAT3, Bax and CyclinD1 proteins were measured by western blotting. The caspase-3 and 9 functions were condensed by assay kit. Results: Findings demonstrates the Ganoderma lucidum convince cytotoxicity, accretion of ROS, and apoptosis stimulation in PC-3 cells. In addition, signal transducer and activating transcription (STAT-3) is a successive oncogenic transcriptional factor that regularizes multiplication and apoptosis in cells. Discretion of STAT-3 transcription deliberated as original approach to hinder prostate cell growth. In present exploration, we ascertain that Ganoderma lucidum hold back STAT-3 translocation, in that way dropping the eminent expression of, BCL-2, cyclin-D1 and declined the Bax, caspase-3 and 9 expressions in PC-3 cells. Conclusion: In the end our finding concluded that Ganoderma lucidum hinder prostate cell development and convinces apoptosis via hampering the translocation STAT-3.

12.
J Environ Pathol Toxicol Oncol ; 39(3): 225-234, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32865914

RESUMO

Asthma is marked by chronic irritation in the airway lumen of the lungs due to the accretion of inflammatory cells that influence the regular inhalation process. An extended buildup of inflammation leads to oxidative pressure and the repression of antioxidant functions. In the current study, a potential compound, boldine, was tested for the containment of provocative markers along the path of antiasthmatic activity in an ovalbumin (OVA)-induced asthmatic mice model. As an effect, the boldine (10 and 20 mg/kg) treatment suppressed inflammatory cells such as eosinophil, macrophage, neutrophil, lymphocyte, and other inflammatory markers in the bronchoalveolar lavage fluid (BALF) of OVA-induced mice. Likewise, immunoglobulin E (IgE) levels were drastically condensed in the serum of boldine-treated animals. Levels of enzymatic and nonenzymatic antioxidants, such as superoxide dismutase (SOD) and glutathione (GSH), were upregulated in the boldine treatment group compared to the asthmatic control group, which displays the antioxidant effects of boldine on asthmatic animals. Interestingly, the reactive oxygen species (ROS) and malonaldehyde (MDA) levels were repressed in the BALF of boldine-treated mice groups. Therefore, the effects of boldine are significant for the management of asthma, reducing the accrual of inflammatory cells, along with other inflammatory markers, while improving antioxidant markers and containing ROS. Hence, boldine may be an option for clinical trials of chronic asthma management.


Assuntos
Antiasmáticos/uso terapêutico , Anti-Inflamatórios/uso terapêutico , Antioxidantes/metabolismo , Aporfinas/uso terapêutico , Asma/tratamento farmacológico , Animais , Antiasmáticos/administração & dosagem , Anti-Inflamatórios/administração & dosagem , Aporfinas/administração & dosagem , Asma/imunologia , Biomarcadores/análise , Líquido da Lavagem Broncoalveolar/química , Líquido da Lavagem Broncoalveolar/citologia , Líquido da Lavagem Broncoalveolar/imunologia , Citocinas/análise , Modelos Animais de Doenças , Eosinófilos/citologia , Imunoglobulina E/sangue , Pulmão/efeitos dos fármacos , Pulmão/patologia , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Ovalbumina/imunologia , Espécies Reativas de Oxigênio/metabolismo , Testes de Função Respiratória
13.
J Environ Pathol Toxicol Oncol ; 39(2): 113-123, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32749121

RESUMO

Liver cancer or hepatocellular carcinoma is considered to be the third leading cause of death among all other cancers. The rate of liver cancer occurrence is high, and the rate of recovery is low. In this study, we investigated the therapeutic efficacy of vicenin-2 against the diethylnitrosamine-induced liver carcinoma in experimental rats. Diethylnitrosamine was widely employed as a carcinogenic agent to stimulate the cancer in animal models. Our results indicated that vicenin-2 administration effectively attenuates the diethylnitrosamine-induced physiological and pharmacological alterations in the experimental rats. Vicenin-2 treatment significantly enhanced the pathological lesions and decreased the levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), and α-fetoprotein (AFP) in serum. We also observed that vicenin-2 reduced the production of reactive oxygen species, decreased the liver weight, upregulated expression of apoptotic proteins, and decreased the histological changes in the liver, which are induced by the diethylnitrosamine in rats. Moreover, vicenin-2 downregulates antiapoptotic Bcl-2 and Bcl-xL, and upregulates the proapoptotic Bax and caspase. Hence, our results suggested that vicenin-2 had a highly therapeutic effect in reversing diethylnitrosamine-induced liver carcinoma in rats, which might be related to the apoptosis induced by vicenin-2. Therefore vicenin-2 could be a good candidate for future therapeutic use to inhibit chemically induced liver cancer.


Assuntos
Apigenina/farmacologia , Carcinoma Hepatocelular/tratamento farmacológico , Glucosídeos/farmacologia , Neoplasias Hepáticas Experimentais/tratamento farmacológico , 8-Hidroxi-2'-Desoxiguanosina/metabolismo , Animais , Antineoplásicos Fitogênicos/farmacologia , Antioxidantes/metabolismo , Apoptose/efeitos dos fármacos , Apoptose/fisiologia , Biomarcadores Tumorais/sangue , Proteínas Sanguíneas/análise , Peso Corporal/efeitos dos fármacos , Carcinoma Hepatocelular/induzido quimicamente , Carcinoma Hepatocelular/patologia , Dietilnitrosamina/toxicidade , Enzimas/sangue , Neoplasias Hepáticas Experimentais/induzido quimicamente , Neoplasias Hepáticas Experimentais/patologia , Masculino , Estresse Oxidativo/efeitos dos fármacos , Ratos Wistar , Soroglobulinas/análise
14.
J Environ Pathol Toxicol Oncol ; 39(1): 61-75, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32479013

RESUMO

Atherosclerosis is a multifactorial disease that develops and progresses in the arterial wall in response to a variety of stimuli. Among various other stimuli, hyperlipidemia is an extremely important factor that is correlated with the development of atherosclerosis. Lemon and citrus fruits contain various bioactive flavonoids, such as eriocitrin, that prevent obesity and related metabolic diseases. Therefore we concentrated on eriocitrin, a potent flavonoid with numerous therapeutic properties, particularly its beneficial lipid-lowering action in rats subjected to high fat diet. The anti-atherosclerotic efficacy of eriocitrin was assessed in rats administered a diet rich in fat. Wistar rats were divided into five groups consisting of six animals in all groups. Group I served the control, Group II was fed a high-fat diet (HFD), and the third and fourth groups were fed an HFD supplemented with varying doses of eriocitrin, and the last group was administered simvastatin for the last 30 days. Body weight, organ weight, lipid and lipoprotein parameters, cardiac and inflammatory markers, and histological examination were evaluated in animals induced with an HFD. Eriocitrin displayed a significant anti-atherosclerotic action by lowering the body weight, organ weight, reduction in lipid content, cardiac and inflammatory markers, myocardial changes confirmed by histopathology, malondialdehyde and increased antioxidant enzyme activities, nitric oxide, as well as 6-keto-PGF1α and high-density lipoprotein levels in rats fed an HFD. The findings of the experiment suggest that the anti-atherosclerotic action of eriocitrin was due to its modulatory activity in lipid metabolism. Considering the overall results of the study it can be validated that a use of flavonoid eriocitrin might be beneficial in altering HFD-induced alterations in atherosclerotic rats.


Assuntos
Aterosclerose/tratamento farmacológico , Flavanonas/metabolismo , Ração Animal/análise , Animais , Aterosclerose/induzido quimicamente , Dieta , Dieta Hiperlipídica/efeitos adversos , Suplementos Nutricionais/análise , Flavanonas/administração & dosagem , Masculino , Ratos , Ratos Wistar
15.
Saudi J Biol Sci ; 27(4): 1100-1106, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32256171

RESUMO

Increasing attention of plant derived therapeutic agents against cancer, investigating the anti-proliferative efficiency of plant derived chemicals have achieved increasing momentum for the design of anticancer drug. Punicalagin, dietary phytochemical altered the various cell signal transduction pathways associated with cell apoptosis and proliferation. This investigation was intended to examine the efficiency of punicalagin lying on cell viability so as to examine the molecular based punicalagin mechanism stimulated apoptosis via exploring the expression of Bcl-2 family proteins, and caspases also the cell cycle regulatory proteins p53 and NF-κB signaling in human cervical cancer cells. We also analyzed the morphological characteristic changes through mitochondrial membrane depolarization, reactive oxygen species (ROS) generation, TUNEL assay, AO/EtBr analysis in cervical cancer cells. Our findings demonstrated that punicalagin repressed the viability of cervical cancer cells in a dosereliant mode via stimulating mitochondrial mediated apoptosis. Moreover, our this study demonstrated that punicalagin blocked cervical cancer cell proliferation and stimulated cell apoptosis by suppressing NF-kappa B activity. Hence our study suggested that punicalagin exhibits opposing actions on NF-kappa B signaling networks to block cancer cell progression acts as a classical candidate for anticancer drug designing.

16.
J Photochem Photobiol B ; 203: 111773, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31931385

RESUMO

Glioma is the prime cause of cancer allied mortality in adolescent people and it accounts about 80% of all malignant tumours. Eugenol is a major bioactive constituent present in the essential oils with numerous pharmacological benefits including nueroprotective activity. The major drawback of eugenol is its extreme volatile property and oxygen sensitivity therefore we increased the efficacy of drug; eugenol by encapsulating with chitosan polymer. Eugenol loaded chitosan polymer (EuCs) was characterized using FTIR, XRD, SEM, HR-TEM analysis and the encapsulation, drug release efficacy was assessed at in vitro condition. The induction of autophagy and anticancer efficacy of EuCs on glioma cells was evaluated with rat C6 glioma cells using MTT assay, acridine orange staining, immunocytochemical analysis of NFκß protein expression and FLOW cytometric analysis. The anti-metastatic property of Eu-CS was assessed by immunoblotting and RT-PCR analysis of epithelial mesenchymal transition protein expression in EuCs treated rat C6 glioma cells. Our characterization analysis proves that EuCs possess essential physical and functional properties of copolymer to be utilized as a drug. Further the MTT analysis and AO staining confirms even in the presence of oncogenic inducer and autophagic inhibitors, EuCs exhibits apoptotic potency on rat C6 glioma cells. The result of immunocytochemical studies depicts the inhibition of NFκß protein expression and flow cytometry studies confirm apoptosis induction by EuCs. The inhibition of metastasis by EuCs was proven by the decrease in epithelial mesenchymal transition protein expression in Eu-Cs treated rat C6 glioma cells. Over all our results authentically confirms eugenol loaded chitosan nanopolymer persuasively induces apoptosis and inhibits metastasis in rat C6 glioma cells.


Assuntos
Antineoplásicos/química , Apoptose/efeitos dos fármacos , Quitosana/química , Eugenol/química , Metaloproteinase 9 da Matriz/metabolismo , Nanoestruturas/química , Transdução de Sinais/efeitos dos fármacos , Animais , Antineoplásicos/farmacologia , Linhagem Celular Tumoral , Portadores de Fármacos/química , Eugenol/farmacologia , Glioma/metabolismo , Glioma/patologia , NF-kappa B/metabolismo , Ratos , Ativador de Plasminogênio Tipo Uroquinase/metabolismo
17.
Int J Med Mushrooms ; 21(8): 805-816, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31679287

RESUMO

The chaga medicinal mushroom (Inonotus obliquus) was traditionally used to treat various ailments. To establish the pharmacological properties of I. obliquus, studies were performed to show the antiulcer activity of the ethanolic extract. The ethanolic extract of I. obliquus was prepared. The antiulcer activity of I. obliquus was determined using gastric ulcerated rats (ulceration induced by ethanol). The ethanolic extract of I. obliquus (200 mg/kg) did not cause any sign of toxicity or sensitivity to rats when the extracts were administered by oral feed. Oral administration of ethanolic extract of I. obliquus exhibited antiulcer activity in all models used. The ethanolic extract of I. obliquus showed an effective antiulcer activity, which could be due to the presence of various biologically active compounds. This confirmed the traditional uses of I. obliquus in the treatment of ailments.


Assuntos
Antiulcerosos/farmacologia , Antioxidantes/metabolismo , Basidiomycota/química , Misturas Complexas/farmacologia , Úlcera Gástrica/tratamento farmacológico , Agaricales , Animais , Antiulcerosos/isolamento & purificação , Catalase/metabolismo , Misturas Complexas/isolamento & purificação , Dinoprostona/metabolismo , Modelos Animais de Doenças , Etanol , Glutationa/metabolismo , Concentração de Íons de Hidrogênio , Peroxidação de Lipídeos/efeitos dos fármacos , Medicina Tradicional , Ratos , Ratos Wistar , Úlcera Gástrica/induzido quimicamente , Úlcera Gástrica/patologia , Superóxido Dismutase/metabolismo
18.
J Photochem Photobiol B ; 201: 111643, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31698218

RESUMO

Diabetes is a major emerging health consequence across the world which directly associated with the obesity. Contemporary anti-diabetic drugs have numeral limitations, and investigation of herbal remedies for diabetes give novel guide for the expansion of new drugs that can be used as harmonizing to present anti-diabetic allopathic medications. Gold nanoparticles (AuNPs) of 21 nm have been formerly well portrayed in vitro for their capability to intend active uptake in cell. Our present study was dealing with the synthesis of gold nanoparticles by means of Smilax glabra rhizome amend the anti-obesity constraints in high-fat diet by streptozotocin provoked obese diabetes in rat model. Characterization studies like UV -Spectroscopy, XRD analysis, SEM, TEM microscopy, Energy Dispersive X-Ray Spectroscopy, and FT-IR investigation confirms the availability of dimension, shape and size. Biochemical parameters like blood glucose and insulin sufferance and its release, lipid profile, aterogenic & coronary index, liver markers, inflammatory markers, hormones like leptin, resistin, adiponectin indicates the therapeutic effect of gold nanoparticles harvested from Smilax glabra on obese and diabetic rats. Histopathological examinations displayed the disturbed internal structures of obese and diabetic rats liver and heart tissues. Whereas, treatment with gold nanoparticles synthesized from Smilax glabra restored the internal membrane, nuclei and cytoplasm. All these findings confirmed the anti-obesity and anti-diabetic effect of synthesized gold nanoparticles from Smilax glabra.


Assuntos
Diabetes Mellitus Experimental/patologia , Dieta Hiperlipídica , Ouro/química , Nanopartículas Metálicas/química , Smilax/química , Animais , Glicemia/análise , Diabetes Mellitus Experimental/induzido quimicamente , Diabetes Mellitus Experimental/tratamento farmacológico , Coração/efeitos dos fármacos , Fígado/efeitos dos fármacos , Fígado/metabolismo , Fígado/patologia , Masculino , Nanopartículas Metálicas/uso terapêutico , Nanopartículas Metálicas/toxicidade , Miocárdio/metabolismo , Miocárdio/patologia , Extratos Vegetais/química , Ratos , Ratos Wistar , Rizoma/química , Rizoma/metabolismo , Smilax/metabolismo , Estreptozocina/toxicidade
19.
J Biochem Mol Toxicol ; 33(12): e22403, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31714660

RESUMO

Zingerone (ZO), an active phenolic agent derived from Zingiber officinale (Ginger), has many pharmacological properties such as antioxidant, antiangiogenic, and antitumor. However, its potential value in cancer and the mechanism by which ZO wields its therapeutic effects remain obscure. Therefore, in this current study, we explored the effects of ZO on suppressing cell proliferation and enhancing apoptosis in colon cancer cells (HCT116). Our results indicated that ZO significantly enhances the production of reactive oxygen species, lipid peroxidation (thiobarbituric acid reactive substance [TBARS]), and loss of cell viability; and reduces mitochondrial membrane potential and antioxidant levels (SOD, CAT, and GSH) in ZO-treated HCT116 cells in a dose-dependent (2.5, 5, and 10 µM) manner. Furthermore, ZO induces oxidative stress-mediated apoptosis as evidenced by apoptotic morphological changes predicted by AO/EtBr, Hoechst staining and further confirmed by comet assay. Moreover, immunoblotting techniques showed that ZO treatment effectively enhances Bax, caspase-9, and caspase-3 expressions and decreases the expression of Bcl-2 in colon cancer cells. Together, our results evidenced that the antitumor effects of ZO reduce cell proliferation and stimulate apoptosis through modulating pro- and antiapoptotic molecular events in HCT116 colon cancer cells. Therefore, based on our findings, ZO may be used as a therapeutic agent for the treatment of colon cancer.


Assuntos
Antineoplásicos/farmacologia , Apoptose/efeitos dos fármacos , Neoplasias do Colo/patologia , Gengibre/química , Guaiacol/análogos & derivados , Extratos Vegetais/farmacologia , Espécies Reativas de Oxigênio/metabolismo , Antioxidantes/metabolismo , Caspase 3/metabolismo , Caspase 9/metabolismo , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Dano ao DNA/efeitos dos fármacos , Guaiacol/farmacologia , Células HCT116 , Humanos , Peroxidação de Lipídeos/efeitos dos fármacos , Potencial da Membrana Mitocondrial/efeitos dos fármacos , Estresse Oxidativo/efeitos dos fármacos , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Proteína X Associada a bcl-2/metabolismo
20.
J Photochem Photobiol B ; 201: 111624, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31722283

RESUMO

Biosynthesis of Zinc oxide nanoparticles (ZnONPs) from natural plants stands as a promising nanodrug delivery system in cancer therapeutics. Marsdenia tenacissima (M.t), a Chinese medicinal plant has been extensively used as clinical remedy for treating several types of cancer. In this present study, ZnONPs were synthesized from Marsdenia tenacissima and its anti cancer potency was assessed against in vitro laryngeal cancer cell line Hep-2. The biosynthesized Marsdenia tenacissima Zinc Oxide Nanoparticles [M.t-ZnONPs] was characterized using UV-visible Spec, SEM, TEM and EDAX analysis. The cytotoxic and apoptotic inducing potential of M.t-ZnONPs was assessed by MTT assay and staining such as DCFH-DA, AO/EtBr, Rhodamine 123, DAPI and comet assay. The anticancer potential of M.t-ZnONPs was analysed by Real time PCR analysis of proapoptotic, antiapoptotic and caspases proteins. Our present findings showed characteristic and morphological representation of synthesized M.t-ZnONPs by UV-visible Spec, SEM, TEM and EDAX analysis. M.t-ZnONPs exhibits its cytotoxicity by inhibiting the viability of Hep-2 cells and IC50 value was obtained by MTT assay. The results of apoptotic staining techniques in M.t-ZnONPs treated Hep-2 cells confirm with excess ROS generation, disruption of mitochondrial membrane potential and nuclear damage. The apoptotic inducing potential of M.t-ZnONPs was also evidenced by upregulation of proapoptotic proteins Bax, Caspase 3 & 9 and downregultion of antiapoptotic protein Bcl-2 by RT-PCR analysis. Finally, these results suggested that biosynthesized M.t-ZnONPs is an effective anticancer agent which induces apoptosis in Hep-2 laryngeal cell line and thus conclude that M.t-ZnONPs, a valid anticancer strategy in treating various cancer.


Assuntos
Apoptose/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Marsdenia/química , Nanopartículas Metálicas/toxicidade , Óxido de Zinco/química , Linhagem Celular Tumoral , Dano ao DNA/efeitos dos fármacos , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Química Verde , Humanos , Neoplasias Laríngeas/metabolismo , Neoplasias Laríngeas/patologia , Marsdenia/metabolismo , Potencial da Membrana Mitocondrial/efeitos dos fármacos , Nanopartículas Metálicas/química , Extratos Vegetais/química , Proteínas Proto-Oncogênicas c-bcl-2/genética , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Espécies Reativas de Oxigênio/metabolismo
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