RESUMO
High-risk human papillomavirus (HPV) infection is associated with cervical cancer while low-risk HPV strains mostly cause benign lesions. Multiple studies have also associated HPV with coronary artery (CAD) disease in women. Furthermore, the climacteric period in women, triggers chronic inflammation and has major implications for CAD and associated lipid disorders. The association of HPV with coronary artery disease in climacteric women has few studies, and the objective of this review is to gather and analyse scientific data on the subject. This is an integrative review performed on PubMed and Google Scholar using the keywords "HPV", "coronary heart disease" and "climacteric", among these keywords the boolean operator AND and the publication date filter. (2018 onwards). Five articles were found, whose main results show presence of high-risk vaginal HPV in climacteric women. Climacterium and HPV were associated with a three-fold increased risk of CAD, as well as with factors related to menopause that promote atheroma formation, lipid disorders and chronic inflammation. Thus, these results support the association between HPV infection and CAD in climacteric women, possibly via chronic inflammation, hormonal factors related to menopause and dyslipidemia.
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Menopausa , Infecções por Papillomavirus , Humanos , Feminino , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/epidemiologia , Doença da Artéria Coronariana/epidemiologia , Doença da Artéria Coronariana/etiologia , Doença das Coronárias/epidemiologia , Doença das Coronárias/etiologiaRESUMO
Chronic loneliness is a risk factor for physical and health problems, in part due to dysfunction of the hypothalamic-pituitary-adrenal (HPA) axis and sympathetic nervous system. In contrast, temporary moments of positive solitude (passing good times alone and not feeling lonely) appear to have positive effects on mental health, social life, and creativity, and seems to be a buffer against loneliness. Herein, three ways of how solitude may have positive effects on health and relatedness are discussed, namely effects on enhancement of mind-wandering, interoceptive awareness, and spirituality. Solitude may facilitate (1) activation of the default mode network (DMN) underlying mind-wandering including daydreaming about other people; (2) activation of brain areas supporting interoceptive awareness; (3) deactivation of prefrontal cortex, or deactivation and decreased connectivity of the DMN, giving raise to susceptibility to spiritual experiences. The capacity to handle and enjoy solitude is a developmental process that may be difficult for many persons. Craving for social connections and external stimulation with digital technologies (e.g., internet, smartphones, social media) might be interfering with the development of the capacity for solitude and thereby increasing loneliness; this might be partly due to impaired interoceptive awareness and impaired functional mind-wandering (common in solitude). Congruently, overuse of digital technologies was associated with reduced activity, and reduced gray matter volume and density, in brain areas supporting interoceptive awareness, as well as with decreased connectivity of the DMN supporting creative insights. Solitude has been a relatively dismissed topic in neuroscience and health sciences, but a growing number of studies is highlighting its importance for well-being.
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Solidão , Humanos , Encéfalo/fisiologia , Encéfalo/diagnóstico por imagem , Espiritualidade , Rede de Modo Padrão/fisiologia , Rede de Modo Padrão/diagnóstico por imagem , Interocepção/fisiologia , Conscientização/fisiologiaRESUMO
El miedo generalizado de la COVID-19 parece haber exacerbado el impacto negativo de la pandemia. Por eso, es relevante monitorear el miedo de la COVID-19 y su asociación con la salud mental, el bienestar y los comportamientos de las personas, siendo necesarias medidas válidas y fiables de miedo de la COVID-19. Este estudio tuvo como objetivo evaluar las propiedades psicométricas de una versión en portugués europeo de la escala Fear of COVID-19 (FCV-19S-P). Un objetivo secundario fue evaluar la invariancia de medición transversal multigrupo de FCV-19S-P (mujeres vs. hombres). Una muestra de 572 adultos portugueses (72 % mujeres) completaron el FCV-19S-P y medidas de depresión, ansiedad y estrés. Los resultados del estudio respaldaron la validez de esta versión y fiabilidad (alfa de Cronbach = .84; confiabilidad compuesta = .83) y una estructura factorial similar a de la versión original. El miedo de la COVID-19 se asoció positivamente (.23 < r < .31) con depresión, ansiedad y estrés. Los resultados del análisis transversal de invariancia multigrupo respaldaron la invariancia escalar total de la FCV-19S-P y su invariancia residual parcial, lo que sugiere que esta medida puede usarse para llegar a conclusiones válidas con respecto a las comparaciones de género en muestras de adultos portugueses.(AU)
The novelty and uncertainty of the pandemic nourished a gener-alized fear of the COVID-19, which seems to have exacerbated the pan-demics negative impact. It is thus relevant to monitor fear of COVID-19 and its association with individuals mental health, well-being, and behav-iors. Valid and reliable measures of fear of COVID-19 are necessary for that purpose. This study aimed at assessing the psychometric properties of a European Portuguese version of the Fear of COVID-19 scale (FCV-19S-P). A secondary aim was to assess FCV-19S-Ps multigroup measurement invariance (female vs.male). A sample of 572 Portuguese adults (72 % fe-male) completed the FCV-19S-P and measures of depression, anxiety, and stress. The study results supported this version validityand reliability (Cronbachs alpha = .84; Composite Reliability = .83), and a factorial struc-ture similar to the original version. Fear of COVID-19 was positively asso-ciated (.23 < r < .31) with depression, anxiety, and stress. Results of the multigroup invariance analysis supported the FCV-19S-P total scalar invar-iance and its partial residual invariance, suggesting that this measure may be used to reach valid conclusions in respect to gender comparisons in samples of Portuguese adults in regard to group observed composite means.(AU)
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Humanos , Masculino , Feminino , Infecções por Coronavirus/epidemiologia , Pandemias , Medo , Reprodutibilidade dos Testes , PortugalRESUMO
Visual snow is a condition of unclear prevalence characterized by tiny flickering dots throughout the entire visual field. It appears to result from visual cortex hyperactivity and possibly correlates with propensity to be engrossed in sensory and imaginary experiences (absorption). The prevalence and correlates of visual snow, and emotional reactions to it, were explored in the general Portuguese population with three studies with online surveys. In Study 1, 564 participants were shown an animated graphic simulation of visual snow and asked to rate how frequently they have similar percepts on a scale anchored by 0% and 100% of their waking time. They also reported their degree of distress and fascination resulting from visual snow. Absorption was measured with the Modified Tellegen Absorption Scale. 44% of respondents reported they see visual snow at least 10% of the time, and 20% reported seeing it between 80% and 100% of the time. Similar to findings in clinical samples, the frequency of visual snow correlated with tinnitus frequency and entoptic phenomena, but not with ophthalmologic problems. It was confirmed that visual snow is related to absorption. Although distress caused by visual snow was generally absent or minimal in our samples, a substantial minority (28%) reported moderate to high levels of distress. High fascination with visual snow was reported by 9%. In Studies 2 and 3, visual snow was measured by means of verbal descriptions without graphic simulation ("visual field full of tiny dots of light" and "world seen with many dots of light", respectively). The results were similar to those in Study 1, but seeing visual snow 80%-100% of the time was less frequent (6.5% in Study 2 and 3.6% in Study 3). Visual snow has been insufficiently investigated. More research is needed to uncover underlying neurophysiological mechanisms and psychological and behavioral correlates.
Assuntos
Doenças Retinianas , Córtex Visual , Humanos , Prevalência , Transtornos da Visão/etiologia , Campos Visuais , Doenças Retinianas/complicaçõesRESUMO
BACKGROUND: The use of social networking sites (SNS) sometimes acquires an addictive-like quality, often referred to as problematic use of SNS. This condition overlaps with problematic (addictive-like) use of smartphones, as the latter are commonly used for online social networking in addition to other activities that may gain addictive-like qualities. There is ample evidence that problematic use of smartphones and SNS is associated with poorer mental health, but research on associations with sexual function is scarce. AIM: To examine if sexual difficulties are related to problematic use of SNS and smartphones. METHODS: Data from 4 studies conducted in Portugal between October 2019 and December 2021 (analyzed for the first time) were collapsed, resulting in 946 women and 235 men providing data on sexual function and problematic use of smartphones, and in 536 women and 194 men providing data on sexual function and problematic use of SNS. Female sexual function was assessed with the Female Sexual Function Index and the Female Sexual Distress Scale - Revised (FSDS-R). Male sexual function was assessed by the International Index of Erectile Function. Problematic smartphone use was measured by the Smartphone Addiction Scale - Short Version (SAS-SV). Problematic use of SNS was measured by the Internet Addiction Scale (IAT) specifically adapted to online social networking. OUTCOMES: Participants rated their symptoms of problematic use of smartphones and SNS, as well as their sexual function. RESULTS: In women, problematic use of SNS correlated with lower sexual arousal (r = -0.22), difficulties lubricating (r = -0.13), difficulties having orgasms (r = -0.20), sexual dissatisfaction (r = -0.23), coital pain (r = -0.19), and greater sexual distress (r = 0.33). In men, problematic use of SNS correlated with lower erectile function (r = -0.26), lower desire (r = -0.17), intercourse dissatisfaction (r = -0.20), overall sexual dissatisfaction (r = -0.30), and more difficulties having orgasms (r = -0.20). For both sexes, correlations between sexual function and problematic smartphone use were in the same direction, but were generally weaker and, in most cases, become nonsignificant after controlling for problematic use of SNS. CLINICAL IMPLICATIONS: Addictive-like use of SNS might be a risk factor for sexual difficulties. STRENGTHS & LIMITATIONS: This study is innovative and well-powered to uncover associations between poorer sexual function and addictive-like use of new technologies. The lack of representativeness of the sample warrants caution. CONCLUSIONS: Problematic (addictive-like) use of SNS was associated with male and female sexual difficulties. This corroborates previous research. Fuzeiro V., Martins C., Gonçalves C, et al. Sexual Function and Problematic Use of Smartphones and Social Networking Sites. J Sex Med 2022;19:1303-1308.
Assuntos
Comportamento Aditivo , Disfunção Erétil , Comportamento Aditivo/diagnóstico , Feminino , Humanos , Masculino , Comportamento Sexual , Smartphone , Rede SocialRESUMO
There is lack of research on effects of red wine on consciousness when drank in wine bars designed to enhance the pleasurableness of the wine drinking experience. Effects of a moderate dose of red wine (≈ 40.98 g of ethanol) on consciousness were examined in a naturalistic study taking place in a wine bar located in one of the most touristic areas of Lisbon, Portugal. One hundred two participants drank in one of three conditions: alone, in dyad, or in groups up to six people. Red wine increased pleasure and arousal, decreased the awareness of time, slowed the subjective passage of time, increased the attentional focus on the present moment, decreased body awareness, slowed thought speed, turned imagination more vivid, and made the environment become more fascinating. Red wine increased insightfulness and originality of thoughts, increased sensations of oneness with the environment, spiritual feelings, all-encompassing love, and profound peace. All changes in consciousness occurred regardless of volunteers drinking alone, in dyad or in group. Men and women did not report different changes in consciousness. Older age correlated with greater increases in pleasure. Younger age correlated with greater increases in fascination with the environment of the wine bar. Drinking wine in a contemporaneous Western environment designed to enhance the pleasurableness of the wine drinking experience may trigger changes in consciousness commonly associated with mystical-type states.
Assuntos
Bebidas Alcoólicas , Nível de Alerta/efeitos dos fármacos , Estado de Consciência/efeitos dos fármacos , Etanol/farmacologia , Vinho , Adulto , Depressores do Sistema Nervoso Central/farmacologia , Feminino , Humanos , Masculino , Satisfação Pessoal , Portugal , Inquéritos e QuestionáriosRESUMO
BACKGROUND: Pain is a universal experience and the most common reason for seeking healthcare. Inadequate pain management negatively impacts numerous aspects of patient health. Multidisciplinary treatment programmes, including psychosocial interventions, are more useful for pain management than purely biomedical treatment alone. Recently, researchers showed increasing interest in understanding the role of spirituality/religiosity and spiritual/religious practices on pain experience, with engagement in religious practices, such as prayer, showing to positively impact pain experience in religious individuals. This systematic review will seek to summarise and integrate the existing findings from randomised controlled trials assessing the effects of prayer and prayer-based interventions on pain experience. METHODS: The systematic review procedures and its report will follow the Preferred Reporting Items for Systematic reviews and Meta-Analyses statement. Electronic searches in nine databases (Web of Science Core Collection, MEDLINE, SCIELO Citation Index, PubMed, Cochrane Central Register of Controlled Clinical Trial, PsycINFO, Scopus, LILACS and Open-SIGLE) will be performed to identify randomised controlled trials of prayer-based interventions. Two independent researchers will assess studies for inclusion and extract data from each paper. Risk of bias assessment will be assessed independently by two reviewers based on the Consolidated Standards of Reporting Trials statement. Qualitative synthesis of the body of research will be conducted using a narrative summary synthesis method. Meta-analysis will be limited to studies reporting on the same primary outcome. Formal searches are planned to start in June 2021. The final report is anticipated to be completed by September 2021. DISCUSSION: Findings will be useful to (1) understand the condition of our knowledge in this field and (2) provide evidence for prayer effectiveness in reducing pain intensity and pain-related stress and increasing pain tolerance in adults experiencing acute or chronic pain. PROSPERO REGISTRATION NUMBER: CRD42020221733.
Assuntos
Dor , Projetos de Pesquisa , Adulto , Humanos , Metanálise como Assunto , Ensaios Clínicos Controlados Aleatórios como Assunto , Revisões Sistemáticas como AssuntoRESUMO
BACKGROUND/AIM: Head-and-neck squamous cell carcinoma (HNSCC) is the fifth most common cancer in the world and human papillomavirus (HPV) is an important risk factor for this neoplasm. Recent studies showed an association between sex hormone receptors and pathogenesis and/or prognosis in patients with HNSCC. The aim of this study was to clarify the expression patterns of sex hormone receptors in HPV-positive and HPV-negative HNSCC and their associations with tumour biopathology and biological behaviour. MATERIALS AND METHODS: Scientific literature indexed in PubMed about sex hormone receptors in HNSCC was retrieved and critically analyzed, to obtain an overview of expression patterns and their possible implications for tumour biopathology and prognosis. RESULTS: Sex hormone receptors were more frequently detected in oropharyngeal tumours compared with HNSCC from other locations. ERα was associated with HPV-positive tumours. The androgen and progesterone receptors were associated with poor patient prognosis. Estrogen receptor alpha (ERα) is implicated in the biopathology of HNSCC in different ways, by promoting DNA hypermutation and facilitating HPV integration thus contributing to an immunogenic phenotype, but also by cooperating with the epithelial growth factor receptor (EGFR) to promote resistance to therapy. CONCLUSION: The expression of sex hormone receptors may be of prognostic value in specific tumour subgroups, but the use of hormonal therapies for HNSCC is still not in close sight.
Assuntos
Neoplasias de Cabeça e Pescoço/virologia , Infecções por Papillomavirus/complicações , Receptores de Esteroides/metabolismo , Carcinoma de Células Escamosas de Cabeça e Pescoço/virologia , Animais , Biomarcadores Tumorais/metabolismo , Feminino , Hormônios Esteroides Gonadais/metabolismo , Neoplasias de Cabeça e Pescoço/metabolismo , Neoplasias de Cabeça e Pescoço/mortalidade , Neoplasias de Cabeça e Pescoço/terapia , Humanos , Masculino , Neoplasias Orofaríngeas/metabolismo , Neoplasias Orofaríngeas/virologia , Prognóstico , Carcinoma de Células Escamosas de Cabeça e Pescoço/metabolismo , Carcinoma de Células Escamosas de Cabeça e Pescoço/mortalidade , Carcinoma de Células Escamosas de Cabeça e Pescoço/terapiaAssuntos
Bacteriemia/etiologia , Infecções Relacionadas a Cateter/microbiologia , Cateterismo Venoso Central/efeitos adversos , Cateteres Venosos Centrais/efeitos adversos , Infecções por Pseudomonas/diagnóstico , Pseudomonas aeruginosa/isolamento & purificação , Idoso , Bacteriemia/diagnóstico , Infecções Relacionadas a Cateter/diagnóstico , Feminino , Humanos , Infecções por Pseudomonas/etiologia , Diálise Renal , Insuficiência Renal Crônica/terapiaRESUMO
Erectile dysfunction (ED) in younger men is an increasing concern. In middle aged and older men, ED was related to lower resting heart rate variability (HRV), but research in younger men is lacking. The present study examined, in a nonclinical sample of 105 men between 18 and 39 years, the association of ED with several parameters of resting HRV. Scores of the 5-item version of the International Index of Erectile Function (IIEF-5) below 22 were considered as indicating ED. Eighteen men (17.1%) reported ED (mild in 16, mild to moderate in 2). Welch's tests revealed that ED was associated with lower low-frequency power (LF), lower high-frequency power (HF), lower standard deviation of interbeat intervals, and lower standard deviation of the heart rate, which is influenced by both sympathetic and parasympathetic activity. After removing outliers, ED was unrelated to HF. In younger men, erections might be facilitated by a combination of higher parasympathetic tone and relatively higher sympathetic tone in the heart, as indicated by LF and greater standard deviation of the heart rate, a largely overlooked parameter in HRV research.
Assuntos
Disfunção Erétil , Idoso , Frequência Cardíaca , Humanos , Masculino , Pessoa de Meia-Idade , Ereção Peniana , Projetos PilotoRESUMO
BACKGROUND: This study addresses the antitumoral properties of Penicillium purpurogenum isolated from a polluted lagoon in Northeastern Brazil. METHODS: Ethyl Acetate Extracellular Extract (EAE) was used. The metabolites were studied using direct infusion mass spectrometry. The solid Ehrlich tumor model was used for antitumor activity. Female Swiss mice were divided into groups (n = 10/group) as follows: The negative control (CTL-), treated with a phosphate buffered solution; the positive control (CTL+), treated with cyclophosphamide (25 mg/kg); extract treatments at doses of 4, 20, and 100 mg/kg; animals without tumors or treatments (Sham); and animals without tumors treated with an intermediate dose (EAE20). All treatments were performed intraperitoneally, daily, for 15 days. Subsequently, the animals were euthanized, and the tumor, lymphoid organs, and serum were used for immunological, histological, and biochemical parameter evaluations. RESULTS: The extract was rich in meroterpenoids. All doses significantly reduced tumor size, and the 20 and 100 mg/kg doses reduced tumor-associated inflammation and tumor necrosis. The extract also reduced the cellular infiltration of lymphoid organs and circulating TNF-α levels. The extract did not induce weight loss or renal and hepatic toxic changes. CONCLUSIONS: These results indicate that P. purpurogenum exhibits immunomodulatory and antitumor properties in vivo. Thus, fungal fermentation is a valid biotechnological approach to the production of antitumor agents.
Assuntos
Antineoplásicos/farmacologia , Carcinoma de Ehrlich/tratamento farmacológico , Citocinas/metabolismo , Mediadores da Inflamação/metabolismo , Talaromyces/metabolismo , Animais , Antineoplásicos/isolamento & purificação , Antineoplásicos/toxicidade , Carcinoma de Ehrlich/imunologia , Carcinoma de Ehrlich/metabolismo , Carcinoma de Ehrlich/patologia , Feminino , Camundongos , Estrutura Molecular , Carga Tumoral/efeitos dos fármacos , Microbiologia da ÁguaRESUMO
OBJECTIVE: Climacterium is associated with elevated leptin levels and increased risk of cardiovascular disorders. Conflicting data diverge on whether high leptin levels in climacterium reflect increasing adipose mass or, at least partially, age-related hormonal changes. This study addresses this issue in women from a Brazilian state with a low human development index. SUBJECTS AND METHODS: A case-control study was conducted, enrolling 136 women from the state of Maranhão, 52 (38.2%) climacteric and 84 (61.8%) non-climacteric. Biometric, biochemical, hormonal and immunological parameters were analyzed. RESULTS: Climacteric women showed a moderately increased waist/hip ratio (0.894 versus 0.834, p < 0.05), sustained body mass index (27.46 versus 28.68, p > 0.05) increased leptin levels (9.59 versus 7.13, p < 0.05) and no evidence of metabolic syndrome. No other parameters were altered. The climacteric cohort didn't show significant body fat gains but displayed a typical age-related redistribution of adipose tissue. Even so, leptin levels were significantly elevated compared with non-climacteric women. CONCLUSIONS: Altogether, these data support the hypothesis that leptin is elevated, at least partially, as a function of age and climacterium and is not necessarily correlated with metabolic dysfunction and systemic inflammation. Further studies are needed to evaluate the impact of higher leptin levels on postmenopausal women. Arch Endocrinol Metab. 2020;64(3):276-81.
Assuntos
Adiposidade/fisiologia , Climatério/sangue , Leptina/sangue , Adulto , Fatores Etários , Idoso , Biomarcadores/sangue , Estudos de Casos e Controles , Climatério/fisiologia , Estudos de Coortes , Feminino , Humanos , Pessoa de Meia-Idade , Fatores SocioeconômicosRESUMO
ABSTRACT Objective Climacterium is associated with elevated leptin levels and increased risk of cardiovascular disorders. Conflicting data diverge on whether high leptin levels in climacterium reflect increasing adipose mass or, at least partially, age-related hormonal changes. This study addresses this issue in women from a Brazilian state with a low human development index. Subjects and methods A case-control study was conducted, enrolling 136 women from the state of Maranhão, 52 (38.2%) climacteric and 84 (61.8%) non-climacteric. Biometric, biochemical, hormonal and immunological parameters were analyzed. Results Climacteric women showed a moderately increased waist/hip ratio (0.894 versus 0.834, p < 0.05), sustained body mass index (27.46 versus 28.68, p > 0.05) increased leptin levels (9.59 versus 7.13, p < 0.05) and no evidence of metabolic syndrome. No other parameters were altered. The climacteric cohort didn't show significant body fat gains but displayed a typical age-related redistribution of adipose tissue. Even so, leptin levels were significantly elevated compared with non-climacteric women. Conclusions Altogether, these data support the hypothesis that leptin is elevated, at least partially, as a function of age and climacterium and is not necessarily correlated with metabolic dysfunction and systemic inflammation. Further studies are needed to evaluate the impact of higher leptin levels on postmenopausal women. Arch Endocrinol Metab. 2020;64(3):276-81
Assuntos
Humanos , Feminino , Adulto , Idoso , Climatério/sangue , Leptina/sangue , Adiposidade/fisiologia , Fatores Socioeconômicos , Climatério/fisiologia , Biomarcadores/sangue , Estudos de Casos e Controles , Estudos de Coortes , Fatores Etários , Pessoa de Meia-IdadeRESUMO
Cushman argues that "rationalization is rational." We show that there is reasonable empirical clinical and forensic psychological evidence to support viewing rationalization as a quite suboptimal defense mechanism. Rationalization has been found to be associated not only with poorer emotional development, but also with a broad range of antisocial behavior, including not only shoplifting, but also pedophilia and murder.
Assuntos
Mecanismos de Defesa , RacionalizaçãoRESUMO
The production of chestnut (Castanea sativa Miller) is mostly concentrated in Europe. Chestnut is recognized by its high content of antioxidants and phytosterols. This work aimed to evaluate the effects of dietary chestnut consumption over physiological variables of FVB/n mice. Eighteen FVB/n male 7-month-old mice were randomly divided into three experimental groups (n = 6): 1 (control group) fed a standard diet; 2 fed a diet supplemented with 0.55% (w/w) chestnut; and 3 supplemented with 1.1% (w/w) chestnut. Body weight, water, and food intake were recorded weekly. Following 35 days of supplementation, the mice were sacrificed for the collection of biological samples. Chestnut supplementation at 1.1% reduced abdominal adipose tissue. Lower serum cholesterol was also observed in animals supplemented with chestnut. There were no significant differences concerning the incidence of histological lesions nor in biochemical markers of hepatic damage and oxidative stress. These results suggest that chestnut supplementation may contribute to regulate adipose tissue deposition.
RESUMO
Lipopolysaccharide (LPS) induces fever through cytokines like receptor-activator of nuclear factor κB ligand (RANKL), triggering mediators like prostaglandins (PG), endothelin-1 (ET-1), corticotrophin-releasing factor (CRF), substance P (SP) and endogenous opioids. LPS-induced fever is reduced in females compared with males except in ovariectomized (OVX) females which show increased fever mediated by PG. The present study aimed to identify the mediators involved in fever in intact and OVX female rats. Fever was induced with LPS (50 µg/kg) intraperitoneally or CRF (2.5 µg), ET-1 (1 pg), morphine (10 µg) and SP (500 ng) intracerebroventricularly in sham-operated and OVX rats. The role of RANKL was evaluated with osteoprotegerin (OPG, 1 µg, intracerebroventricularly). Expression of RANK, CRFI/II, ETB, µ-opioid (MOR) and NK1 receptors was evaluated by confocal microscopy. Besides LPS, only morphine induced fever in OVX rats while all mediators induced fever in sham-operated animals. OPG abolished LPS-induced fever in OVX but not sham-operated animals. Overall, fever involves similar central mediators in cycling females and males but only morphine induced fever in OVX females. Importantly, RANK/RANKL participates in LPS-induced fever in OVX females, as in males but not in cycling females.
Assuntos
Citocinas/metabolismo , Febre/etiologia , Hipotálamo/imunologia , Hipotálamo/metabolismo , Lipopolissacarídeos/toxicidade , Ovariectomia/efeitos adversos , Analgésicos Opioides/metabolismo , Animais , Hormônio Liberador da Corticotropina/metabolismo , Endotelina-1/metabolismo , Feminino , Febre/metabolismo , Febre/patologia , Hipotálamo/efeitos dos fármacos , Prostaglandinas/metabolismo , Ligante RANK/metabolismo , Ratos , Ratos Wistar , Substância P/metabolismoRESUMO
Carcinogenesis induced by high-risk human papillomavirus (HPV) involves inflammatory phenomena, partially mediated by cyclooxigenase-2. In pre-clinical models of HPV-induced cancer, cyclooxygenase-2 inhibitors have shown significant efficacy, but also considerable toxicity. This study addresses the chemopreventive effect and hepatic toxicity of a specific cyclooxigensase-2 inhibitor, parecoxib, in HPV16-transgenic mice. Forty-three 20 weeks-old female mice were divided into four groups: I (HPV16-/-, n = 10, parecoxib-treated); II (HPV16-/- n = 11, untreated); III (HPV16+/-, n = 11, parecoxib-treated) and IV (HPV16+/-, n = 11, untreated). Parecoxib (5.0 mg/kg once daily) or vehicle was administered intraperitoneally for 22 consecutive days. Skin lesions were classified histologically. Toxicological endpoints included genotoxic parameters, hepatic oxidative stress, transaminases and histology. Parecoxib completely prevented the onset of epidermal dysplasia in HPV16+/- treated animals (0% versus 64% in HPV16+/- untreated, p = 0.027). Parecoxib decreases lipid peroxidation (LPO) and superoxide dismutase (SOD) activity and increases the GSH:GSSG ratio in HPV16+/- treated animals meaning that oxidative stress is lower. Parecoxib increased genotoxic stress parameters in wild-type and HPV16-transgenic mice, but didn't modify histological or biochemical hepatic parameters. These results indicate that parecoxib has chemopreventive effects against HPV16-induced lesions while maintaining an acceptable toxicological profile in this model.
Assuntos
Anticarcinógenos/uso terapêutico , Inibidores de Ciclo-Oxigenase 2/uso terapêutico , Papillomavirus Humano 16/isolamento & purificação , Isoxazóis/uso terapêutico , Neoplasias Cutâneas/prevenção & controle , Neoplasias Cutâneas/virologia , Animais , Anticarcinógenos/efeitos adversos , Inibidores de Ciclo-Oxigenase 2/efeitos adversos , Feminino , Papillomavirus Humano 16/genética , Isoxazóis/efeitos adversos , Camundongos , Camundongos Transgênicos , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/patologia , Pele/efeitos dos fármacos , Pele/patologia , Pele/virologia , Neoplasias Cutâneas/patologiaRESUMO
BACKGROUND: Cardiovascular diseases are leading causes of death worldwide. Recent studies suggest that infection by some viruses, including the human papillomavirus (HPV), may increase the risk of developing atheromatous lesions on coronary arteries. However, there is a lack of data regarding the possible association between HPV infection and coronary artery disease (CAD) in women. OBJECTIVE: To investigate whether HPV infection is associated with the occurrence of CAD among climacteric women. METHODS: The presence of CAD and cervical HPV DNA was investigated in 52 climacteric women. Social and demographic variables and metabolic profiles were also investigated. RESULTS: Among 27 women with CAD, 16 were positive for HPV, whereas 11 were negative. The presence of cervical HPV was strongly associated with CAD, after adjusting for demographic variables, health and sexual behaviors, comorbidities, and known cardiovascular risk factors. HPV-positive women showed a greater likelihood of having CAD (odds ratio [OR] = 3.74; 95% confidence interval [CI]: 1.16 to 11.96) as compared with HPV-negative women, particularly those infected with high-risk HPV types (OR = 4.90; 95% CI: 1.26 to 19.08). CONCLUSION: These results support the hypothesis that HPV infection might be associated with CAD among climacteric women, though further studies are needed to investigate the mechanisms involved.
Assuntos
Climatério , Doença da Artéria Coronariana/epidemiologia , Doença da Artéria Coronariana/etiologia , Papillomaviridae , Infecções por Papillomavirus/epidemiologia , Adulto , Fatores Etários , Idoso , Feminino , Humanos , Pessoa de Meia-Idade , Razão de Chances , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/virologia , Vigilância em Saúde Pública , Medição de Risco , Fatores de Risco , Fatores Sexuais , Fatores SocioeconômicosRESUMO
Research in women suggests a relation between sexual difficulties and lower interoceptive awareness, the conscious perception of internal bodily states. Lower interoceptive awareness is theoretically linked to greater alexithymia, which has been related to sexual dysfunctions. Hence, we examined the relations of interoceptive awareness and alexithymia with several dimensions of sexual functioning in a nonclinical sample of both sexes. Methods: Three hundred forty Portuguese (228 women, 112 men) completed the Toronto Alexithymia Scale (TAS-20) and the Multidimensional Assessment of Interoceptive Awareness (MAIA). Women additionally completed the Female Sexual Function Index (FSFI) and the Female Sexual Distress Scale-Revised (FSDS-R). Men additionally completed the International Index of Erectile Function (IIEF) and one question on difficulties delaying ejaculation. Greater alexithymia correlated with lesser interoceptive awareness. For women, greater alexithymia and lesser interoceptive awareness correlated with lesser arousal, lesser lubrication, more orgasm difficulties, more dissatisfaction, more pain, and more sexual distress. Higher female desire correlated with greater interoceptive awareness, but was unrelated to alexithymia. In men, lesser interoceptive awareness correlated with more difficulties delaying ejaculation, and greater alexithymia correlated with more erectile difficulties. The present investigation corroborates that awareness of emotions and internal bodily states is important for sexual functioning.