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1.
Anal Bioanal Chem ; 416(1): 21-36, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37837539

RESUMO

Fibrinogen as a major inflammation marker and blood coagulation factor has a direct impact on the health of humanity. The variations in fibrinogen content lead to risky conditions such as bleeding and cardiovascular diseases. So, accurate methods for monitoring of this glycoprotein are of high importance. The conventional methods, such as the Clauss method, are time consuming and require highly specialized expert analysts. The development of fast, simple, easy to use, and inexpensive methods is highly desired. In this way, biosensors have gained outstanding attention since they offer means for performing analyses at the points-of-care using self-testing devices, which can be applied outside of clinical laboratories or hospital. This review indicates that different electrochemical and optical sensors have been successfully implemented for the detection of fibrinogen under normal levels of fibrinogen in plasma. The biosensors for the detection of fibrinogen have been designed based on the quartz crystal microbalance, field-effect transistor, electrochemical impedance spectroscopy, amperometry, surface plasmon resonance, localized surface plasmon resonance, and colorimetric techniques. Also, this review demonstrates the utility of the application of nanoparticles in different detection techniques.


Assuntos
Técnicas Biossensoriais , Fibrinogênio , Fibrinogênio/química , Técnicas Biossensoriais/métodos , Ressonância de Plasmônio de Superfície , Colorimetria
2.
Medicina (Kaunas) ; 60(3)2024 Mar 06.
Artigo em Inglês | MEDLINE | ID: mdl-38541163

RESUMO

Background and Objectives: This paper aims to assess the role of laser therapy in periodontitis through an innovative approach involving computational prediction and advanced modeling performed through network analysis (Gaussian graphical models-GGMs) and structural equations (SEM). Materials and Methods: Forty patients, exhibiting periodontal pockets with a minimum depth of 5 mm, were randomly divided into two groups: a control group and a laser group. Four specific indicators were measured for each tooth, namely periodontal pocket depth (PPD), clinical attachment level (CAL), bleeding on probing (BOP), and plaque index (PI), and the mean of six measured values was recorded at five time markers (baseline, 6 months, 1 year, 2 years, and 4 years). The assessment algorithm included enrollment, measurements, and differential non-surgical periodontal treatment, according to the group allocation. Scaling, root planing, and chlorhexidine 1% were conducted for the control group, and scaling, root planing and erbium, chromium:yttrium-scandium-gallium-garnet (Er,CR:YSGG) laser therapy were conducted for the laser group. Results: The main results highlight that the addition of laser treatment to scaling and root planing led to notable clinical improvements, decreasing the PPD values, reducing the BOP scores, and increasing the CAL. Conclusions: Notable relationships between the specific indicators considered were highlighted by both the GGMs and by SEM, thus confirming their suitability as proxies for the success of periodontal treatment.


Assuntos
Terapia a Laser , Terapia com Luz de Baixa Intensidade , Periodontite , Humanos , Análise de Classes Latentes , Periodontite/radioterapia , Periodontite/cirurgia , Terapia a Laser/métodos , Aplainamento Radicular/métodos , Seguimentos
3.
Saudi Pharm J ; 30(5): 519-526, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35693443

RESUMO

Cisplatin (CP) is one of the most widely used antineoplastic drugs, which possesses the potential to treat a variety of malignancies. However, it displays numerous side effects as well. Male reproductive dysfunction is one of the most adverse side effects of CP. Vitexin is a naturally occurring flavonoid, which exhibits remarkable antioxidant properties. Present study was designed to evaluate the protective effects of vitexin on CP-induced damages on testes. 48 Sprague-Dawley rats were equally distributed into 4 groups: control, cisplatin (CP), cisplatin + vitexin (CP + VIT) and vitexin (VIT). After 14 days of treatment, evaluation of biochemical, spermatogenic, steroidogenical, hormonal, apoptotic and histopathological parameters was carried out. CP damaged the biochemical profile by reducing activity of CAT, SOD, GPx and GSR, while level of MDA and ROS was increased. It also decreased sperm motility, viability, number of hypo-osmotic tail swelled spermatozoa and epididymal sperm count, besides increasing the sperm morphological anomalies. Moreover, levels of LH, FSH and plasma testosterone were reduced. CP reduced the gene expression of testicular anti-apoptotic marker (Bcl-2) and steroidogenic enzymes (3ß-HSD, 17ß-HSD and StAR), but upregulated the gene expressions of apoptotic markers (Bax and Caspase-3). Besides, CP led to histopathological damages in testicular tissues. However, vitexin reversed all aforementioned damages in testes. Therefore, it is concluded that vitexin could play an effective role as a therapeutic agent against CP-prompted testicular toxicity due to its antioxidant, anti-apoptotic and androgenic potential.

4.
FASEB J ; 34(7): 9102-9119, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32475023

RESUMO

Viola tricolor Linn. is used as cardio-protective and anti-hypertensive agent in traditional medicine. Current study objective was to evaluate cardio-protective and hypotensive effects of Viola tricolor L. in vitro and in vivo studies. Viola tricolor L. crude extract (Vt.Cr) and its fractions (Aqueous and organic) were tested at rabbit atria and aorta coupled to Power Lab Data Acquisition System for cardio depressant and vasorelaxant effects in vitro whereas in vivo Blood Pressure was checked by invasive method in normotensive ketamine-diazepam anesthetized rats. Isoproterenol was employed for acute myocardial infarction (AMI) and left ventricular hypertrophy (LVH) development and cardioprotective effects of Vt.Cr were evaluated hemodynamically and histopathologically. Vt.Cr and its fractions decreased heart rate and contractile force in paired atria and relaxed Phenylephrine (1 µM) and K+ (80 mM) stimulated contractions in aorta possibly mediated through Voltage dependent L-type calcium channels blockage supported by in vivo hypotensive action. In LVH, Vt.Cr lowered Angiotensin Converting Enzymes and renin, increased cyclic Guanosine Monophosphate and nitric oxide levels, decreased cardiomyocytes size and fibrosis attributed to Gallic acid as detected by High Performance Liquid Chromatography. Partial positive results were seen hemodynamically and histologically in AMI Viola tricolor L. showed vasorelaxant, cardio-relaxant, hypotensive, and cardio protective effect validating traditional practice in cardiovascular disorders.


Assuntos
Canais de Cálcio/química , Cardiotônicos/farmacologia , Hipotensão/tratamento farmacológico , Infarto do Miocárdio/tratamento farmacológico , Extratos Vegetais/farmacologia , Vasodilatadores/farmacologia , Viola/química , Animais , Canais de Cálcio/metabolismo , Hipotensão/patologia , Isoproterenol/toxicidade , Masculino , Infarto do Miocárdio/induzido quimicamente , Infarto do Miocárdio/patologia , Coelhos , Ratos , Ratos Wistar
5.
Int J Mol Sci ; 22(2)2021 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-33435168

RESUMO

Cervical cancer represents one of the leading causes of cancer-related death in women all over the world. The infection with human papilloma virus (HPV) is one of the major risk factors for the development of premalignant lesions, which will progress to cervical cancer. Seaweeds are marine organisms with increased contents of bioactive compounds, which are described as potential anti-HPV and anti-cervical cancer agents. Our study aims to bring together all the results of the previous studies, conducted in order to highlight the potency of bioactive molecules from seaweeds, as anti-HPV and anti-cervical agents. This paper is a review of the English literature published between January 2010 and August 2020. We performed a systematic study in the Google Academic and PubMed databases using the key words "HPV infection", "anticancer", "seaweeds", "cervical cancer" and "carcinogenesis process", aiming to evaluate the effects of different bioactive molecules from marine algae on cervical cancer cell lines and on HPV-infected cells. Only original studies were considered for our research. None of the papers was excluded due to language usage or affiliation. Recent discoveries pointed out that sulfated polysaccharides, such as dextran sulfate heparan or cellulose sulfate, blocked the ability of HPV to infect cells, and inhibited the carcinogenesis process. Carrageenans inhibited the virions of HPV from binding the cellular wall. Fucoidan induced the growth inhibition of HeLa cervical cells in vitro. Heterofucans exhibited antiproliferative effects on cancer cell lines. Terpenoids from brown algae are also promising agents with anti-cervical cancer activity. Considering all the results of the previous studies, we observed that great amounts of bioactive molecules from seaweeds could treat both unapparent HPV infection and clinical visible disease. Furthermore, these molecules were very efficient in the treatment of invasive cervical carcinomas. In these conditions, we consider seaweeds extracts as a novel and challenging therapeutic strategy, and we hope that our study paves the way for further clinical trials in the field.


Assuntos
Antineoplásicos/farmacologia , Antivirais/farmacologia , Infecções por Papillomavirus/tratamento farmacológico , Alga Marinha/química , Neoplasias do Colo do Útero/tratamento farmacológico , Animais , Antineoplásicos/uso terapêutico , Antivirais/uso terapêutico , Feminino , Humanos , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/prevenção & controle , Phaeophyceae/química , Neoplasias do Colo do Útero/etiologia , Neoplasias do Colo do Útero/prevenção & controle
6.
Int J Mol Sci ; 22(20)2021 Oct 09.
Artigo em Inglês | MEDLINE | ID: mdl-34681572

RESUMO

Throughout history, nature has been acknowledged for being a primordial source of various bioactive molecules in which human macular carotenoids are gaining significant attention. Among 750 natural carotenoids, lutein, zeaxanthin and their oxidative metabolites are selectively accumulated in the macular region of living beings. Due to their vast applications in food, feed, pharmaceutical and nutraceuticals industries, the global market of lutein and zeaxanthin is continuously expanding but chemical synthesis, extraction and purification of these compounds from their natural repertoire e.g., plants, is somewhat costly and technically challenging. In this regard microbial as well as microalgal carotenoids are considered as an attractive alternative to aforementioned challenges. Through the techniques of genetic engineering and gene-editing tools like CRISPR/Cas9, the overproduction of lutein and zeaxanthin in microorganisms can be achieved but the commercial scale applications of such procedures needs to be done. Moreover, these carotenoids are highly unstable and susceptible to thermal and oxidative degradation. Therefore, esterification of these xanthophylls and microencapsulation with appropriate wall materials can increase their shelf-life and enhance their application in food industry. With their potent antioxidant activities, these carotenoids are emerging as molecules of vital importance in chronic degenerative, malignancies and antiviral diseases. Therefore, more research needs to be done to further expand the applications of lutein and zeaxanthin.


Assuntos
Antioxidantes/química , Luteína/química , Zeaxantinas/química , Fatores Biológicos/química , Composição de Medicamentos , Estabilidade de Medicamentos , Esterificação , Edição de Genes , Engenharia Genética , Humanos , Macula Lutea/química
7.
Molecules ; 26(4)2021 Feb 17.
Artigo em Inglês | MEDLINE | ID: mdl-33671442

RESUMO

Background: Pomgranate (Punica granatum) represents a high source of polyphenols with great bioavailability. The role of this fruit in the prevention and treatment of various malignant pathologies has been long time cited in both scientific and non-scientific literature, making thus important to identify its involvement in the pathophysiological processes. The treatment for breast cancer had focused on the inhibition of the mechanisms that governs the estrogen activity. These mechanisms are covered either by the antagonism of the estrogen receptor (ER) or by the inhibition of the estrogen synthesis. Our interest in identifying a bioactive compound rich in polyphenols, which induces both the antagonism of the estrogen receptor, and the inhibition of the estrogen synthesis, revealed us the pomegranate fruit and its derivatives: peel and seeds. Pomegranates' chemical composition include many biological active substances such as flavonols, flavanols, anthocyanins, proanthocyanidins, ellagitannins and gallotannins. Materials and Methods: We performed a review of the scientific literature by using the following keywords: "pomegranate", "breast cancer", "Punica granatum", "pomegranate polyphenols". Our search was performed in the PubMed and Google Scholar databases, and it included only original research written in English from the last 20 years. None of the articles were excluded due to affiliation. A total number of 28 original papers, which mentioned the beneficial activity of pomegranate against breast cancer, were selected. Both clinical and preclinical studies were considered for this review. Results: Recent discoveries pointed out that polyphenols from Punica granatum possess strong anti-cancer activity, exhibited by a variety of mechanisms, such as anti-estrogenic, anti-proliferative, anti-angiogenetic, anti-inflammatory, and anti-metastatic. Pomegranate extracts induced cell cycle arrest in the G0/G1 phase, and induced cytotoxicity in a dose- and time-dependent manner. Moreover, several polyphenols extracted from pomegranate inhibited the invasion potential, migration and viability of breast cancer cells. The effects of pomegranate juice on serum estrogens and other sexual hormones levels were also investigated on two human cohorts. Conclusions: Punica granatum represents a promising area in oncology. The large availability and low cost, associated with the lack of side effects, made from this natural product a great strategy for the management of breast cancer. There are several mechanistic studies in mouse models and in breast cancer cell lines, suggesting the possible pathways through which polyphenols from pomegranate extracts act, but larger and better-controlled studies are necessary in the future. Only two small clinical trials were conducted on humans until now, but their results are contradictory and should be considered preliminary.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Compostos Fitoquímicos/uso terapêutico , Punica granatum/química , Antineoplásicos/uso terapêutico , Feminino , Sucos de Frutas e Vegetais , Humanos , Compostos Fitoquímicos/química
8.
Am J Ther ; 28(3): e341-e348, 2020 Jun 22.
Artigo em Inglês | MEDLINE | ID: mdl-32618591

RESUMO

BACKGROUND: Psychotic episodes in the postpartum period are life-threatening psychiatric emergencies, requiring urgent medical attention and admission to a psychiatric hospital. AREAS OF UNCERTAINTY: Although the postpartum psychosis (PPP) is the most severe psychiatric disorder associated with parturition, there is little information about what interventions are most effective. Because there are no specific guidelines for the treatment of PPP, the aim of the present review was to examine the available evidence regarding the treatment of PPP. DATA SOURCES: The PubMed database was searched based on the title and the abstract, using the key words "postpartum psychosis," "postpartum psychosis antipsychotics," "postpartum psychosis treatment," and "postpartum psychosis pharmacotherapy," for both interventional and observational, irrespective of language. RESULTS: A number of 14 publications met the study criteria, including case reports and case series. The antipsychotics (APs) use included both first generation APs, such as haloperidol and chlorpromazine, and second generation APs, mainly, olanzapine, quetiapine, and risperidone. The most frequently used AP was olanzapine. Olanzapine and quetiapine seem to be the most acceptable during breastfeeding. Proposed treatment algorithms for the successful management of PPP are discussed. CONCLUSIONS: The existing studies to date do not allow to draw a definitive conclusion regarding which treatment is the most effective or the most adequate. Existing evidence suggests that APs alone or in combination are responsible for sustained remission and that treated PPP has a higher pace of improvement of the mental status, with a rapid discharge from the hospital. Clinical studies to compare the efficacy and safety of different APs in the PPP are needed to provide guidance on treatment interventions.


Assuntos
Antipsicóticos , Transtornos Psicóticos , Antipsicóticos/uso terapêutico , Benzodiazepinas/uso terapêutico , Feminino , Humanos , Olanzapina , Período Pós-Parto , Transtornos Psicóticos/tratamento farmacológico , Fumarato de Quetiapina/uso terapêutico , Risperidona
9.
Mar Drugs ; 18(12)2020 Dec 17.
Artigo em Inglês | MEDLINE | ID: mdl-33348926

RESUMO

Spirulina is a phytosynthetic filamentous cyanobacterium with microscopic dimensions, which naturally grows in the highly-salted alkaline lakes of Africa, Mexico, America, and Asia. Several bioactive peptides extracted from Spirulina were demonstrated to possess antimicrobial, antiviral, antitumor, immunomodulatory, antiallergic and antihypertensive properties. It has been reported that the consumption of Spirulina could prevent or manage metabolic syndrome components. In women, metabolic disorders are more prevalent during menopause. Postmenopausal women present higher waist circumference, increased blood pressure, hypertriglyceridemia, hyperglycemia, and decreased HDL-cholesterol values, leading to an increased risk of cardiovascular events. Therefore, in order to prevent cardiovascular diseases, it is essential to manage the components of the metabolic syndrome during the postmenopausal period. As recent reports indicated the efficiency of Spirulina supplementation in the management of the metabolic syndrome components, our study aims to review all the clinical trials conducted on this topic. Our main objective is to have a better understanding of whether and how this cyanobacterium could manage the abnormalities included in the metabolic syndrome and if it could be used as a therapeutic approach in postmenopausal women with this condition. We selected relevant articles from PubMed, Google Scholar and CrossRef databases, and a total number of 20 studies met our criteria. All included clinical trials indicated that Spirulina has positive effects in managing metabolic syndrome components. Spirulina is a valuable cyanobacterium that can be used as a food supplement for the management of metabolic syndrome, and it is able to reduce the risk of cardiovascular events. The optimal dose and period of administration remain a debated subject, and future investigations are required. Considering the beneficial effects reported against each component of the metabolic syndrome, Spirulina could also be effective in the postmenopausal period, when this syndrome is the most prevalent, but there is a strong need for human clinical trials in order to sustain this observation.


Assuntos
Suplementos Nutricionais , Síndrome Metabólica/tratamento farmacológico , Spirulina , Idoso , Feminino , Humanos , Síndrome Metabólica/fisiopatologia , Pessoa de Meia-Idade , Pós-Menopausa
10.
Int J Mol Sci ; 21(5)2020 Mar 04.
Artigo em Inglês | MEDLINE | ID: mdl-32143439

RESUMO

BACKGROUND: Early and accurate diagnosis of endometriosis is crucial for the management of this benign, yet debilitating pathology. Despite the advances of modern medicine, there is no common ground regarding the pathophysiology of this disease as it continues to affect the quality of life of millions of women of reproductive age. The lack of specific symptoms often determines a belated diagnosis. The gold standard remains invasive, surgery followed by a histopathological exam. A biomarker or a panel of biomarkers is easy to measure, usually noninvasive, and could benefit the clinician in both diagnosing and monitoring the treatment response. Several studies have advanced the idea of biomarkers for endometriosis, thereby circumventing unnecessary invasive techniques. Our paper aims at harmonizing the results of these studies in the search of promising perspectives on early diagnosis. METHODS: We selected the papers from Google Academic, PubMed, and CrossRef and reviewed recent articles from the literature, aiming to evaluate the effectiveness of various putative serum and urinary biomarkers for endometriosis. RESULTS: The majority of studies focused on a panel of biomarkers, rather than a single biomarker and were unable to identify a single biomolecule or a panel of biomarkers with sufficient specificity and sensitivity in endometriosis. CONCLUSION: Noninvasive biomarkers, proteomics, genomics, and miRNA microarray may aid the diagnosis, but further research on larger datasets along with a better understanding of the pathophysiologic mechanisms are needed.


Assuntos
Biomarcadores/sangue , Biomarcadores/urina , Endometriose/diagnóstico , Autoanticorpos/química , Citocinas/metabolismo , Endometriose/sangue , Endometriose/urina , Endométrio/patologia , Feminino , Genômica , Humanos , Inflamação , Metabolômica , MicroRNAs/metabolismo , Neovascularização Patológica , Análise de Sequência com Séries de Oligonucleotídeos , Estresse Oxidativo , Peptídeos/química , Proteômica
11.
Molecules ; 25(14)2020 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-32698461

RESUMO

Women's life stages are based on their reproductive cycle. This cycle begins with menstruation and ends with menopause. Aging is a natural phenomenon that affects all humans, and it is associated with a decrease in the overall function of the organism. In women, aging is related with and starts with menopause. Also, during menopause and postmenopausal period, the risk of various age-related diseases and complaints is higher. For this reason, researchers were pushed to find effective remedies that could promote healthy aging and extended lifespan. Apitherapy is a type of alternative medicine that uses natural products from honeybees, such as honey, propolis, royal jelly, etc. Royal jelly is a natural yellowish-white substance, secreted by both hypopharyngeal and mandibular glands of nurse bees, usually used to feed the queen bees and young worker larvae. Over the centuries, this natural product was considered a gold mine for traditional and natural medicine, due to its miraculous effects. Royal jelly has been used for a long time in commercial medical products. It has been demonstrated to possess a wide range of functional properties, such as: antibacterial, anti-inflammatory, vasodilatative, hypotensive, anticancer, estrogen-like, antihypercholesterolemic, and antioxidant activities. This product is usually used to supplement various diseases such as cardiovascular disease, Alzheimer's disease, sexual dysfunctions, diabetes or cancer. The main objective of this study is to highlight the effectiveness of royal jelly supplementation in relieving menopause symptoms and aging-related diseases. We also aimed to review the most recent research advances regarding the composition of royal jelly for a better understanding of the effects on human health promotion.


Assuntos
Envelhecimento/fisiologia , Ácidos Graxos/farmacologia , Pós-Menopausa/fisiologia , Envelhecimento/efeitos dos fármacos , Ácidos Graxos/efeitos adversos , Ácidos Graxos/química , Ácidos Graxos/uso terapêutico , Humanos , Pós-Menopausa/efeitos dos fármacos
12.
Molecules ; 25(15)2020 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-32751601

RESUMO

Anogeissus acuminata (Roxb. ex DC.) is a folkloric medicinal plant in Asia; including Pakistan; used as a traditional remedy for cardiovascular disorders. This study was planned to establish a pharmacological basis for the trivial uses of Anogeissus acuminata in certain medical conditions related to cardiovascular systems and to explore the underlying mechanisms. Mechanistic studies suggested that crude extract of Anogeissus acuminata (Aa.Cr) produced in vitro cardio-relaxant and vasorelaxant effects in isolated paired atria and aorta coupled with in vivo decrease in blood pressure by invasive method; using pressure and force transducers connected to Power Lab Data Acquisition System. Moreover; Aa.Cr showed positive effects in left ventricular hypertrophy in Sprague Dawley rats observed hemodynamically by a decrease in cardiac cell size and fibrosis; along with absence of inflammatory cells; coupled with reduced levels of angiotensin converting enzyme (ACE) and renin concentration along with increased concentrations of nitric oxide (NO) and cyclic guanosine monophosphate (cGMP). In Acute Myocardial Infarction (AMI) model; creatine kinase (CK), creatine kinase-MB (CK-MB) and lactic acid dehydrogenase (LDH levels) were found to be decreased; along with decreased necrosis; edema and recruitment of inflammatory cells histologically. In vivo and ex vivo studies of Anogeissus acuminata provided evidence of vasorelaxant; hypotensive and cardioprotective properties facilitated through blockage of voltage-gated Ca++ ion channel; validating its use in cardiovascular diseases.


Assuntos
Anti-Hipertensivos/farmacologia , Cardiotônicos/farmacologia , Combretaceae/química , Extratos Vegetais/farmacologia , Animais , Anti-Hipertensivos/isolamento & purificação , Pressão Sanguínea/efeitos dos fármacos , Cardiotônicos/isolamento & purificação , Cromatografia Líquida de Alta Pressão , Átrios do Coração/efeitos dos fármacos , Hipertensão/tratamento farmacológico , Hipertensão/metabolismo , Hipertensão/patologia , Hipertrofia Ventricular Esquerda/tratamento farmacológico , Hipertrofia Ventricular Esquerda/metabolismo , Hipertrofia Ventricular Esquerda/patologia , Masculino , Infarto do Miocárdio/tratamento farmacológico , Infarto do Miocárdio/metabolismo , Infarto do Miocárdio/patologia , Fitoterapia/métodos , Extratos Vegetais/isolamento & purificação , Coelhos , Distribuição Aleatória , Ratos , Ratos Sprague-Dawley , Roedores , Transdução de Sinais/efeitos dos fármacos , Vasodilatadores/farmacologia
13.
Molecules ; 24(4)2019 Feb 13.
Artigo em Inglês | MEDLINE | ID: mdl-30781885

RESUMO

Endometriosis represents a severe gynecological pathology, defined by implantation of endometrial glands and stroma outside the uterine cavity. This pathology affects almost 15% of women during reproductive age and has a wide range of consequences. In affected women, infertility has a 30% rate of prevalence and endometriosis implants increase the risk of ovarian cancer. Despite long periods of studies and investigations, the etiology and pathogenesis of this disease still remain not fully understood. Initially, endometriosis was related to retrograde menstruation, but new theories have been launched, suggesting that chronic inflammation can influence the development of endometriosis because inflammatory mediators have been identified elevated in patients with endometriosis, specifically in the peritoneal fluid. The importance of dietary phytochemicals and their effect on different inflammatory diseases have been highlighted, and nowadays more and more studies are focused on the analysis of nutraceuticals. Resveratrol is a phytoestrogen, a natural polyphenolic compound with antiproliferative and anti-inflammatory actions, found in many dietary sources such as grapes, wine, peanuts, soy, berries, and stilbenes. Resveratrol possesses a significant anti-inflammatory effect via inhibition of prostaglandin synthesis and it has been proved that resveratrol can exhibit apoptosis-inducing activities. From the studies reviewed in this paper, it is clear that the anti-inflammatory effect of this natural compound can contribute to the prevention of endometriosis, this phenolic compound now being considered a new innovative drug in the prevention and treatment of this disease.


Assuntos
Endometriose/tratamento farmacológico , Inflamação/metabolismo , Neovascularização Fisiológica/genética , Resveratrol/metabolismo , Endometriose/metabolismo , Feminino , Humanos , Inflamação/genética , Redes e Vias Metabólicas/genética , Fitoestrógenos/metabolismo , Fitoestrógenos/uso terapêutico , Resveratrol/uso terapêutico
14.
Environ Res ; 166: 269-275, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-29908458

RESUMO

Smoking is considered an important source for inorganic elements, most of them toxic for human health. During the last years, there has been a significant increase in the use of e-cigarettes, although the role of them as source of inorganic elements has not been well established. A cross-sectional study including a total of 150 subjects from Brasov (Romania), divided into three groups (non-smokers, cigarette smokers and electronic cigarettes smokers) were recruited to disclose the role of smoking on the human exposure to inorganic elements. Concentration of 42 elements, including trace elements, elements in the ATSDR's priority pollutant list and rare earth elements (REE) were measured by ICP-MS in the blood serum of participants. Cigarette smokers showed the highest levels of copper, molybdenum, zinc, antimony, and strontium. Electronic cigarette (e-cigarette) users presented the highest concentrations of selenium, silver, and vanadium. Beryllium, europium and lanthanides were detected more frequently among e-cigarette users (20.6%, 23.5%, and 14.7%) than in cigarette smokers (1.7%, 19.0%, and 12.1%, respectively); and the number of detected REE was also higher among e-cigarette users (11.8% of them showed more than 10 different elements). Serum levels of cerium and erbium increased as the duration of the use of e-cigarettes was longer. We have found that smoking is mainly a source of heavy metals while the use of e-cigarettes is a potential source of REE. However, these elements were detected at low concentrations.


Assuntos
Carga Corporal (Radioterapia) , Sistemas Eletrônicos de Liberação de Nicotina , Metais Pesados/sangue , Metais Terras Raras/sangue , não Fumantes , Fumantes , Estudos Transversais , Humanos , Romênia , Oligoelementos/sangue
15.
Int J Mol Sci ; 19(12)2018 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-30563141

RESUMO

In recent years, a wide range of studies have pointed out the importance of nutraceuticals as reservoirs of therapeutic compounds for several diseases, including cancer. This study is centered on the role of some nutraceuticals as anticancer agents and on their efficiency in the oncological gynecological field. Gynecological cancers include cervical, ovarian, and breast neoplasia and these are the major causes of morbidity and mortality in the female population. Cervical neoplasia affects sexually active women aged between 30 and 40 years and is considered the second leading cause of death for women worldwide. Epidemiological studies have shown a strong association of this cancer with human papilloma virus (HPV) infection, independent of any others risk factors. Ovarian cancer represents about 4% of all women's cancers and breast neoplasia registers 52.8 new cases per 100,000 women annually. Since ancient times, herbal therapies have shown a wide range of beneficial effects and a high potential for safeguarding human health. Azadirachta indica (Neem) is a medicinal plant of Indian origin, a tree with more of 140 isolated compounds and at least 35 biologically active principles that have shown an important influence as tumor suppressors by interfering with the carcinogenesis process. Used for centuries in Asia as a natural remedy for cancer, neem compounds present in bark, leaves, flowers, and seed oil have been shown to possess properties such as chemopreventive capacity, apoptotic activities, immunomodulatory effects, and induction of p53-independent apoptosis. The current study is a systematic literature review based on the anticarcinogenic potential of neem compounds in gynecological cancers.


Assuntos
Antineoplásicos Fitogênicos/uso terapêutico , Azadirachta/química , Neoplasias da Mama/tratamento farmacológico , Neoplasias Ovarianas/tratamento farmacológico , Neoplasias do Colo do Útero/tratamento farmacológico , Adulto , Antineoplásicos Fitogênicos/química , Neoplasias da Mama/epidemiologia , Feminino , Humanos , Neoplasias Ovarianas/epidemiologia , Neoplasias do Colo do Útero/epidemiologia
16.
Molecules ; 23(3)2018 Mar 19.
Artigo em Inglês | MEDLINE | ID: mdl-29562696

RESUMO

Cancer represents the disease of the millennium, a major problem in public health. The proliferation of tumor cells, angiogenesis, and the relationship between the cancer cells and the components of the extracellular matrix are important in the events of carcinogenesis, and these pathways are being used as targets for new anticancer treatments. Various venoms and their toxins have shown possible anticancer effects on human cancer cell lines, providing new perspectives in drug development. In this review, we observed the effects of natural toxins from bee and snake venom and the mechanisms through which they can inhibit the growth and proliferation of cancer cells. We also researched how several types of natural molecules from venom can sensitize ovarian cancer cells to conventional chemotherapy, with many toxins being helpful for developing new anticancer drugs. This approach could improve the efficiency of standard therapies and could allow the administration of decreased doses of chemotherapy. Natural toxins from bee and snake venom could become potential candidates for the future treatment of different types of cancer. It is important to continue these studies concerning therapeutic drugs from natural resource and, more importantly, to investigate their mechanism of action on cancer cells.


Assuntos
Antineoplásicos/uso terapêutico , Venenos de Abelha/uso terapêutico , Neoplasias Ovarianas/tratamento farmacológico , Venenos de Serpentes/uso terapêutico , Animais , Antineoplásicos/farmacologia , Venenos de Abelha/farmacologia , Carcinogênese/efeitos dos fármacos , Carcinogênese/metabolismo , Carcinogênese/patologia , Linhagem Celular Tumoral , Feminino , Humanos , Venenos de Serpentes/farmacologia
17.
BMC Psychiatry ; 17(1): 311, 2017 08 29.
Artigo em Inglês | MEDLINE | ID: mdl-28851326

RESUMO

BACKGROUND: The choice of antipsychotic treatment during pregnancy remains controversial, mainly due to a lack of exposure and outcome data. Randomized clinical trials are practically impossible due to ethical reasons. Our reports describe three cases of closely monitored female patients with schizophrenia who were treated with olanzapine during pregnancy. The novelty of reports is that all patients were previously treated with olanzapine long acting injectable (LAI) for an average period of 3.8 years. During the LAI treatment period they were in remission and then refused to continue with LAI mainly due to treatment modality (injectable administration). CASE PRESENTATION: The patients were relatively young, diagnosed with schizophrenia and were previously successfully treated with long acting injectable. The women were pregnant for the first time. In two cases, the patients had become pregnant during remission and they continued treatment with oral olanzapine. In the third case, olanzapine treatment was initiated during admission for a relapse. CONCLUSIONS: There are no controlled studies for the use of olanzapine therapy in pregnant women. More studies are needed to determine the effects of antipsychotics, including olanzapine, on pregnant women and the developing fetus. Schizophrenia relapse during pregnancy may expose the mother and the fetus to high risk if olanzapine is stopped. It is important to assess the risks and benefits of treating pregnant or breastfeeding women with antipsychotics, and weigh these against possible risks of anomalies and developmental problems to the fetus or child.


Assuntos
Antipsicóticos/uso terapêutico , Benzodiazepinas/uso terapêutico , Complicações na Gravidez/tratamento farmacológico , Esquizofrenia/tratamento farmacológico , Adulto , Antipsicóticos/administração & dosagem , Benzodiazepinas/administração & dosagem , Preparações de Ação Retardada/uso terapêutico , Esquema de Medicação , Feminino , Humanos , Recém-Nascido , Olanzapina , Gravidez
18.
Am J Forensic Med Pathol ; 38(1): 49-53, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27973393

RESUMO

BACKGROUND: Sudden cardiac death (SCD) is a sudden unexpected event, from a cardiac cause, that occurs in less than 1 hour after the symptom onset in a person without any previous condition that would seem fatal or who was seen without any symptoms 24 hours before being found dead. OBJECTIVE: The aims of the study were to describe the features of SCD in Brasov County, Romania (400,000 inhabitants) according to local forensic department autopsy files. METHODS: We retrospectively chart reviewed a number of 7200 autopsy reports between 2001 and 2015 to identify cases of SCD. Data included cause of death, demographics, location of the event, prior known illnesses, as well as psychiatric comorbidities. RESULTS: Of 7200 autopsies effectuated during the 15-year period, we excluded 276 cases with incomplete data. The rest of the 6924 cases included 3000 autopsies (43.3%) of individuals with a violent death: accidents, suicides, and homicides. In 3924 cases (56.7%), the death was nonviolent. Of 3924 nonviolent deaths, based on the registry of Forensic department, we identified 1085 cases of SCD (749 males [69%]; mean age, 56 ± 17.4 years). CONCLUSION: Sudden death with a cardiac etiology remained a major cause of unexpected end of life in the vast majority of cases autopsied during the study period.


Assuntos
Morte Súbita Cardíaca/epidemiologia , Adulto , Distribuição por Idade , Idoso , Reanimação Cardiopulmonar/estatística & dados numéricos , Doenças Cardiovasculares/mortalidade , Doenças Cardiovasculares/patologia , Morte Súbita Cardíaca/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Romênia/epidemiologia , Distribuição por Sexo
19.
Molecules ; 21(8)2016 Aug 17.
Artigo em Inglês | MEDLINE | ID: mdl-27548122

RESUMO

Cervical cancer represents the second leading cause of death for women worldwide. The importance of the diet and its impact on specific types of neoplasia has been highlighted, focusing again interest in the analysis of dietary phytochemicals. Polyphenols have shown a wide range of cellular effects: they may prevent carcinogens from reaching the targeted sites, support detoxification of reactive molecules, improve the elimination of transformed cells, increase the immune surveillance and the most important factor is that they can influence tumor suppressors and inhibit cellular proliferation, interfering in this way with the steps of carcinogenesis. From the studies reviewed in this paper, it is clear that certain dietary polyphenols hold great potential in the prevention and therapy of cervical cancer, because they interfere in carcinogenesis (in the initiation, development and progression) by modulating the critical processes of cellular proliferation, differentiation, apoptosis, angiogenesis and metastasis. Specifically, polyphenols inhibit the proliferation of HPV cells, through induction of apoptosis, growth arrest, inhibition of DNA synthesis and modulation of signal transduction pathways. The effects of combinations of polyphenols with chemotherapy and radiotherapy used in the treatment of cervical cancer showed results in the resistance of cervical tumor cells to chemo- and radiotherapy, one of the main problems in the treatment of cervical neoplasia that can lead to failure of the treatment because of the decreased efficiency of the therapy.


Assuntos
Antineoplásicos Fitogênicos/uso terapêutico , Polifenóis/uso terapêutico , Radiossensibilizantes/uso terapêutico , Neoplasias do Colo do Útero/tratamento farmacológico , Neoplasias do Colo do Útero/prevenção & controle , Antineoplásicos Fitogênicos/química , Antineoplásicos Fitogênicos/farmacologia , Apoptose , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Progressão da Doença , Resistencia a Medicamentos Antineoplásicos/efeitos dos fármacos , Sinergismo Farmacológico , Feminino , Humanos , Polifenóis/química , Polifenóis/farmacologia , Radiossensibilizantes/química , Radiossensibilizantes/farmacologia , Transdução de Sinais/efeitos dos fármacos
20.
J Transl Med ; 13: 134, 2015 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-25925396

RESUMO

BACKGROUND: Solena heterophylla Lour. has traditionally been used in the management of diseases pertaining to gastrointestinal, respiratory and vascular system and present study was undertaken to validate its traditional uses. METHODS: The aqueous ethanolic extract of Solena heterophylla Lour (Sh.Cr) was tested in-vitro on isolated rabbit jejunum, tracheal and aorta preparations. The responses of tissues were recorded using isotonic transducers coupled with PowerLab data acquisition system. RESULTS: The aqueous ethanolic extract of Solena heterophylla Lour (Sh.Cr) (0.03-1.0 mg/ml) on application to spontaneous contractions in isolated rabbit jejunum preparation exerted relaxant effect through decrease in magnitude and frequency of contractions, caused relaxation of K(+)(80 mM)-induced contractions and shifted the Ca(2+) concentration response curves toward right in isolated rabbit jejunum preparations in a manner similar to verapamil (a standard Ca(2+) channel blocker), thus confirming its Ca(2+) channel blocking activity. The Sh.Cr also caused relaxation of carbachol (1 µM)- and K(+)(80 mM)-induced contractions in isolated rabbit tracheal preparations in a manner comparable to dicyclomine. CONCLUSIONS: The observed relaxant effect may be outcome of anti-muscarinic and Ca(2+) channel blocking activities. The Sh.Cr (0.03-1.0 mg/ml) against phenyephrine (1 µM)- and K(+)(80 mM)-induced contractions in isolated rabbit aortic preparations exerted a relaxant effect, possibly through Ca(2+) channel blocking activity. These findings provide a rationale for the folkloric uses of the plant in the management of ailments pertaining to gastrointestinal, respiratory and vascular system.


Assuntos
Aorta/efeitos dos fármacos , Jejuno/efeitos dos fármacos , Extratos Vegetais/química , Traqueia/efeitos dos fármacos , Animais , Canais de Cálcio/química , Canais de Cálcio/efeitos dos fármacos , Carbacol , Doenças Cardiovasculares/tratamento farmacológico , Cucurbitaceae/química , Feminino , Gastroenteropatias/tratamento farmacológico , Técnicas In Vitro , Masculino , Extratos Vegetais/farmacologia , Coelhos , Transtornos Respiratórios/tratamento farmacológico
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