Melatonin Derivative-Conjugated Formulations of Pd(II) and Pt(II) Thiazoline Complexes on Mesoporous Silica to Enhance Cytotoxicity and Apoptosis against HeLa Cells

The search for alternatives to cisplatin has led to the development of new metal complexes where thiazoline derivatives based on platinum(II) and palladium(II) stand out. In this sense, the Pt(II) and Pd(II) complexes coordinated with the thiazoline derivative ligand 2-(3,4-dichlorophenyl)imino-N-(2-thiazolin-2-yl)thiazolidine (TdTn), with formula [PtCl2(TdTn)] and [PdCl2(TdTn)], have previously shown good results against several cancer lines; however, in this work, we have managed to improve their activity by supporting them on mesoporous silica nanoparticles (MSN). The incorporation of metal compounds with a melatonin derivative (5-methoxytryptamine, 5MT), which is a well-known antioxidant and apoptosis inducer in different types of cancer, has been able to increase the cytotoxic activity of both MSN-supported and isolated complexes with only a very low amount (0.35% w/w) of this antioxidant. The covalently functionalized systems that have been synthesized are able to increase selectivity as well as accumulation in HeLa cells. The final materials containing the metal complexes and 5MT (MSN-5MT-PtTdTn and MSN-5MT-PdTdTn) required up to nine times less metal to achieve the same cytotoxic activity than their corresponding non-formulated counterparts did, thus reducing the potential side effects caused by the use of the free metal complexes.

Melatonin as a Coadjuvant in the Treatment of Patients with Fibromyalgia

Fibromyalgia syndrome (FMS) is a chronic widespread pain syndrome that is accompanied by fatigue, sleep disturbances, anxiety, depression, lack of concentration, and neurocognitive impairment. As the currently available drugs are not completely successful against these symptoms and frequently have several side effects, many scientists have taken on the task of looking for nonpharmacological remedies. Many of the FMS-related symptoms have been suggested to be associated with an altered pattern of endogenous melatonin. Melatonin is involved in the regulation of several physiological processes, including circadian rhythms, pain, mood, and oxidative as well as immunomodulatory balance. Preliminary clinical studies have propounded that the administration of different doses of melatonin to patients with FMS can reduce pain levels and ameliorate mood and sleep disturbances. Moreover, the total antioxidant capacity, 6-sulfatoxymelatonin and urinary cortisol levels, and other biological parameters improve after the ingestion of melatonin. Recent investigations have proposed a pathophysiological relationship between mitochondrial dysfunction, oxidative stress, and FMS by looking at certain proteins involved in mitochondrial homeostasis according to the etiopathogenesis of this syndrome. These improvements exert positive effects on the quality of life of FMS patients, suggesting that the use of melatonin as a coadjuvant may be a successful strategy for the management of this syndrome.

Coping with Oxidative Stress in Reproductive Pathophysiology and Assisted Reproduction: Melatonin as an Emerging Therapeutical Tool

Infertility is an increasing global public health concern with socio-psychological implications for affected couples. Remarkable advances in reproductive medicine have led to successful treatments such as assisted reproductive techniques (ART). However, the search for new therapeutic tools to improve ART success rates has become a research hotspot. In the last few years, pineal indolamine melatonin has been investigated for its powerful antioxidant properties and its role in reproductive physiology. It is considered a promising therapeutical agent to counteract the detrimental effects associated with oxidative stress in fertility treatments. The aim of the present narrative review was to summarize the current state of the art on the importance of melatonin in reproductive physiology and to provide a critical evaluation of the data available encompassing basic, translational and clinical studies on its potential use in ART to improve fertility success rates.

Tryptophan-enriched diet or 5-hydroxytryptophan supplementation given in a randomized controlled trial impacts social cognition on a neural and behavioral level

Understanding of emotions and intentions are key processes in social cognition at which serotonin is an important neuromodulator. Its precursor is the essential amino acid tryptophan (TRP). Reduced TRP availability leads to weaker impulse control ability and higher aggression, while TRP supplementation promotes confidence. In a double-blind placebo-controlled fMRI study with 77 healthy adults, we investigated the influence of a 4 week TRP enriched diet and an acute 5-hydroxytryptophan (5-HTP) intake on two social-cognitive tasks, a moral evaluation and an emotion recognition task. With 5-HTP, immoral behavior without negative consequences was rated as more reprehensible. Additionally, during story reading, activation in insula and supramarginal gyrus was increased after TRP intake. No significant effects of TRP on emotion recognition were identified for the whole sample. Importantly, emotion recognition ability decreased with age which was for positive emotions compensated by TRP. Since the supramarginal gyrus is associated with empathy, pain and related information integration results could be interpreted as reflecting stricter evaluation of negative behavior due to better integration of information. Improved recognition of positive emotions with TRP in older participants supports the use of a TRP-rich diet to compensate for age related decline in social-cognitive processes.

Synthesis, Characterization and Antiproliferative Evaluation of Pt(II) and Pd(II) Complexes with a Thiazine-Pyridine Derivative Ligand

Chemical, pharmacological, and clinical research on anticancer coordination complexes has led to noteworthy anticancer drugs such as cisplatin, carboplatin and oxaliplatin. Although these compounds are effective chemotherapeutic agents in the treatment of different tumors, they are associated with high toxicity and numerous side effects. Several studies have shown that the range of platinum complexes with antitumor activity is not limited to structural analogs of cisplatin. Therefore, the development of convenient anticancer drugs that can be effectively used for the treatment of human tumors has become the main goal of most research groups in this field. In this sense, active platinum complexes without NH groups, transplatinum complexes, multinuclear complexes, cationic complexes, and several classes of palladium(II) complexes have emerged. Herein, the synthesis and characterization of two Pt(II) or Pd(II) complexes with PyTz (2-(2-pyridyl)iminotetrahydro-1,3-thiazine), a thiazine derivative ligand, with the formula [MCl₂(PyTz)]·C₂H₆O (M = Pt(II) or Pd(II)) were reported. The potential anticancer ability of both complexes was evaluated in epithelial cervix carcinoma HeLa, human ovary adenocarcinoma SK-OV-3, human histiocytic lymphoma U-937, and human promyelocytic leukemia HL-60 cell lines. Interestingly, the Pt(II) complex showed great cytotoxic potential against all tumor cell lines tested, whereas the Pd(II) complex displayed slight antitumor actions.

SLC6A4 polymorphisms modulate the efficacy of a tryptophan-enriched diet on age-related depression and social cognition

BACKGROUND & AIMS

In a placebo controlled study we sought to determine if a four-weeks tryptophan-enriched diet is able to improve age-related depression or social cognitive impairment, depending on polymorphisms located in the promoter region of Solute Carrier Family 6 Member 4 (SLC6A4), also known as serotonin transporter (SERT1) gene.

METHODS

91 young volunteers (age: 21 ± 2 yrs) and 127 above 50 years old (58 ± 6 yrs) healthy volunteers completed the study. Participants from the placebo and tryptophan group followed the same protocol. Before starting the study blood samples, to measure serotonin-transporter-linked polymorphic region (5-HTTLPR) and rs25531 polymorphisms, were collected. In addition, before and after completing the study urine samples (to measure 5-hydroxyindolacetic acid (5-HIAA) were taken, while psychological questionnaires (to assess depression and social cognition levels), and a one week dietary record (to calculate the tryptophan (TRP) intake) were assessed.

RESULTS

The triallelic approach of SLC6A4 showed that in S'S´ subjects there was a positive correlation between TRP intake and 5-HIAA levels. Age of participants, SLC6A4 genotype, and experimental condition were important factors contributing to the outcome of depression and social cognition.

CONCLUSIONS

5-HTTLPR and rs25531 polymorphisms play a key role in the response to the TRP- based nutritional intervention, improving only age-related depressive symptoms and empathy in S'S´ subjects who have a higher risk to show signs of depression during their lifetime.

Plant Phenolics: Bioavailability as a Key Determinant of Their Potential Health-Promoting Applications

Phenolic compounds are secondary metabolites widely spread throughout the plant kingdom that can be categorized as flavonoids and non-flavonoids. Interest in phenolic compounds has dramatically increased during the last decade due to their biological effects and promising therapeutic applications. In this review, we discuss the importance of phenolic compounds' bioavailability to accomplish their physiological functions, and highlight main factors affecting such parameter throughout metabolism of phenolics, from absorption to excretion. Besides, we give an updated overview of the health benefits of phenolic compounds, which are mainly linked to both their direct (e.g., free-radical scavenging ability) and indirect (e.g., by stimulating activity of antioxidant enzymes) antioxidant properties. Such antioxidant actions reportedly help them to prevent chronic and oxidative stress-related disorders such as cancer, cardiovascular and neurodegenerative diseases, among others. Last, we comment on development of cutting-edge delivery systems intended to improve bioavailability and enhance stability of phenolic compounds in the human body.

Lycopene and Melatonin: Antioxidant Compounds in Cosmetic Formulations

BACKGROUND

The use of antioxidants has become a common practice in the development of antiaging cosmetics.

OBJECTIVE

The aim of this study was to evaluate the clinical efficacy of cosmetic formulations containing lycopene and melatonin antioxidants.

METHOD

Thirty-six healthy women from 32 to 65 years were enrolled in this study. The study was carried out for 10 weeks, 2 preconditioning weeks with a control cream without antioxidants, and 8-week test with creams containing antioxidants in study. A multifunctional skin physiology monitor (Courage & Khazaka electronic GmbH®, Germany) was used to measure skin sebum content, hydration, elasticity, erythema index, and melanin index in 4 different regions of the face.

RESULTS

There were significant differences between them.

"Influence of diet on mood and social cognition: a pilot study"

Recently, a relationship has been observed between nutrition and social cognition. In this aspect, several dietary patterns, or even some probiotics, have been reported as social cognition modulators. However, to date, no studies have reported the effects of specific nutrients. Our aim was to evaluate the relationship between dietary macronutrients and the processing of social and affective information. Participants were undergraduates from the University of Extremadura (Badajoz, Spain) aged 21.3 ± 2.9 years., with a BMI of 22.8 ± 3.9 (kg m-2). The students' social cognition and diet were analysed through questionnaires and a dietary record. The diets were analysed with DIAL v.1.18® software (Alce Ingeniería®). The participants filled out the WHO-5 well-being index, Beck's anxiety inventory, Beck's depression inventory, ruminative response scale (RSS), Leiden index of depression sensitivity (LEIDS-r), empathy quotient (EQ), and interpersonal reactivity index (IRI). To analyse the data, nutrients were grouped through principal component analysis (PCA) into lipids, carbohydrates and proteins. Additionally, we assayed if these principal components were associated with psychological questionnaire scores using multiple linear regression analyses. The dietary pattern differed from the traditional Mediterranean diet due to high intake of proteins and saturated fatty acids. Regarding social cognition and macronutrients, we found a positive association between lipids, specifically cholesterol, and the Perspective-Taking Scale (an IRI component). Carbohydrates influenced the RSS, indicating that complex carbohydrates may be a risk factor for depression. Moreover, the brooding factor, a component of the RRS, was negatively affected by dietary carbohydrates and proteins, specifically by fiber and aspartate. Diet may influence several variables related to social cognition and mood. Particularly, a low-cholesterol diet rich in fiber, complex carbohydrates, and aspartate apparently provides benefits, improving the processing of social and affective information and psychic well-being.

Melatonin and Oxidative Stress in the Diabetic State: Clinical Implications and Potential Therapeutic Applications

All living organisms exhibit circadian rhythms, which govern the majority of biological functions, including metabolic processes. Misalignment of these circadian rhythms increases the risk of developing metabolic diseases. Thus, disruption of the circadian system has been proven to affect the onset of type 2 diabetes mellitus (T2DM). In this context, the pineal indoleamine melatonin is a signaling molecule able to entrain circadian rhythms. There is mounting evidence that suggests a link between disturbances in melatonin production and impaired insulin, glucose, lipid metabolism, and antioxidant capacity. Besides, several genetic association studies have causally associated various single nucleotide polymorphysms (SNPs) of the human MT2 receptor with increased risk of developing T2DM. Taken together, these data suggest that endogenous as well as exogenous melatonin may influence diabetes and associated metabolic disturbances not only by regulating insulin secretion but also by providing protection against reactive oxygen species (ROS) since pancreatic β-cells are very susceptible to oxidative stress due to their low antioxidant capacity.

Collaborative active learning: bioimpedance and anthropometry in higher education

Research in the health sciences devotes much attention to overweight and obesity and, consequently, to body composition. In recent years, traditional body measures have been questioned as efficient variables in health sciences due to the fact that they cannot give information about body fat mass. Our aim is to teach how to analyze body composition through anthropometry and bioelectrical impedance analysis to our "Physiology of Vegetative and Reproductive Functions" students, who are studying for their degree in Biology. We proposed project-oriented-learning to promote collaborative interactions among students. Fifty-two students voluntarily formed five groups; they worked with the concepts of basal metabolic rate and body composition from a theoretical point of view and later transformed these concepts into a practical perspective by preparing a manuscript in groups with objectives proposed by our teaching team. In this research, we show a collaborative educational scenario for university students in which students are tutored from a constructivist perspective to promote social interactions, resulting in new knowledge acquisition.

Apoptosis Is a Demanding Selective Tool During the Development of Fetal Male Germ Cells

Apoptosis is widely known to play a major role on diseases related to male infertility. Diseases of the male genital tract as defective spermatogenesis, decreased sperm motility, sperm DNA fragmentation, testicular torsion, varicocele and immunological infertility are strongly related to apoptotic cell death. Apoptosis must not be considered only as a fail on germ cell physiology or a secondary effect of certain pathologies and exogenous hazardous agents. Apoptosis orchestrates correct function and development of the male germ cell from the early embryonic stages of gonadal differentiation to the fertilization. In this review we have tried to address a reading frame of the main knowledge about apoptosis in male germ cell development. Focussing on mechanisms concerning cellular apoptosis, which are independent of exogenous stimuli, we aimed to highlight that apoptosis is a selective instrument that guarantees the delivery of genetic message to offspring.

Neuropathic Pain: Delving into the Oxidative Origin and the Possible Implication of Transient Receptor Potential Channels

Currently, neuropathic pain is an underestimated socioeconomic health problem affecting millions of people worldwide, which incidence may increase in the next years due to chronification of several diseases, such as cancer and diabetes. Growing evidence links neuropathic pain present in several disorders [i.e., spinal cord injury (SCI), cancer, diabetes and alcoholism] to central sensitization, as a global result of mitochondrial dysfunction induced by oxidative and nitrosative stress. Additionally, inflammatory signals and the overload in intracellular calcium ion could be also implicated in this complex network that has not yet been elucidated. Recently, calcium channels namely transient receptor potential (TRP) superfamily, including members of the subfamilies A (TRAP1), M (TRPM2 and 7), and V (TRPV1 and 4), have demonstrated to play a role in the nociception mediated by sensory neurons. Therefore, as neuropathic pain could be a consequence of the imbalance between reactive oxygen species and endogen antioxidants, antioxidant supplementation may be a treatment option. This kind of therapy would exert its beneficial action through antioxidant and immunoregulatory functions, optimizing mitochondrial function and even increasing the biogenesis of this vital organelle; on balance, antioxidant supplementation would improve the patient's quality of life. This review seeks to deepen on current knowledge about neuropathic pain, summarizing clinical conditions and probable causes, the relationship existing between oxidative stress, mitochondrial dysfunction and TRP channels activation, and scientific evidence related to antioxidant supplementation.

Participation of MT3 melatonin receptors in the synergistic effect of melatonin on cytotoxic and apoptotic actions evoked by chemotherapeutics

BACKGROUND

Melatonin has antitumor activity via several mechanisms including its antiproliferative and proapoptotic effects in addition to its potent antioxidant actions. Therefore, melatonin may be useful in the treatment of tumors in association with chemotherapy drugs.

PURPOSE AND METHODS

This study was performed to study the role of melatonin receptors on the cytotoxicity and apoptosis induced by the chemotherapeutic agents cisplatin and 5-fluorouracil in two tumor cell lines, such as human colorectal cancer HT-29 cells and cervical cancer HeLa cells.

RESULTS

We found that both melatonin and the two chemotherapeutic agents tested induced a decrease in HT-29 and HeLa cell viability. Furthermore, melatonin significantly increased the cytotoxic effect of chemotherapeutic agents, particularly, in 5-fluorouracil-challenged cells. Stimulation of cells with either of the two chemotherapeutic agents in the presence of melatonin further increased caspase-3 activation. Concomitant treatments with melatonin and chemotherapeutic agents augmented the population of apoptotic cells compared to the treatments with chemotherapeutics alone. Blockade of MT1 and/or MT2 receptors with luzindole or 4-P-PDOT was unable to reverse the enhancing effects of melatonin on both cytotoxicity, caspase-3 activation and the amount of apoptotic cells evoked by the chemotherapeutic agents, whereas when MT3 receptors were blocked with prazosin, the synergistic effect of melatonin with chemotherapy on cytotoxicity and apoptosis was reversed.

CONCLUSION

Our findings provided evidence that in vitro melatonin strongly enhances chemotherapeutic-induced cytotoxicity and apoptosis in two tumor cell lines, namely HT-29 and HeLa cells and, this potentiating effect of melatonin is mediated by MT3 receptor stimulation.

Proceedings of the 3rd IPLeiria's International Health Congress : Leiria, Portugal. 6-7 May 2016

S1 Health literacy and health education in adolescence

Catarina Cardoso Tomás

S2 The effect of a walking program on the quality of life and well-being of people with schizophrenia

Emanuel Oliveira, D. Sousa, M. Uba-Chupel, G. Furtado, C. Rocha, A. Teixeira, P. Ferreira

S3 Diagnosis and innovative treatments - the way to a better medical practice

Celeste Alves

S4 Simulation-based learning and how it is a high contribution

Stefan Gisin

S5 Formative research about acceptability, utilization and promotion of a home fortification programme with micronutrient powders (MNP) in the Autonomous Region of Príncipe, São Tomé and Príncipe

Elisabete Catarino, Nelma Carvalho, Tiago Coucelo, Luís Bonfim, Carina Silva

S6 Safety culture of the patient: a reflexion about the therapeutic approach on the patient with vocal pathology

Débora Franco

S7 About wine, fortune cookies and patient experience

Jesús Alcoba González

O1 The psychological impact on the emergency crews after the disaster event on February 20, 2010

Helena G. Jardim, Rita Silva

O2 Musculoskeletal disorders in midwives

Cristina L. Baixinho, Mª Helena Presado, Mª Fátima Marques, Mário E. Cardoso

O3 Negative childhood experiences and fears of compassion: Implications for psychological difficulties in adolescence

Marina Cunha, Joana Mendes, Ana Xavier, Ana Galhardo, Margarida Couto

O4 Optimal age to give the first dose of measles vaccine in Portugal

João G. Frade, Carla Nunes, João R. Mesquita, Maria S. Nascimento, Guilherme Gonçalves

O5 Functional assessment of elderly in primary care

Conceição Castro, Alice Mártires, Mª João Monteiro, Conceição Rainho

O6 Smoking and coronary events in a population of Spanish health-care centre: An observational study

Francisco P. Caballero, Fatima M. Monago, Jose T. Guerrero, Rocio M. Monago, Africa P. Trigo, Milagros L. Gutierrez, Gemma M. Milanés, Mercedes G. Reina, Ana G. Villanueva, Ana S. Piñero, Isabel R. Aliseda, Francisco B. Ramirez

O7 Prevalence of musculoskeletal injuries in Portuguese musicians

Andrea Ribeiro, Ana Quelhas, Conceição Manso

O8 Hip fractures, psychotropic drug consumption and comorbidity in patients of a primary care practice in Spain

Francisco P. Caballero, Jose T. Guerrero, Fatima M. Monago, Rafael B. Santos, Nuria R. Jimenez, Cristina G. Nuñez, Inmaculada R. Gomez, Mª Jose L. Fernandez, Laura A. Marquez, Ana L. Moreno, Mª Jesus Tena Huertas, Francisco B. Ramirez

O9 The role of self-criticism and shame in social anxiety in a clinical SAD sample

Daniel Seabra, Mª Céu Salvador

O10 Obstruction and infiltration: a proposal of a quality indicator

Luciene Braga, Pedro Parreira, Anabela Salgueiro-Oliveira, Cristina Arreguy-Sena, Bibiana F. Oliveira, Mª Adriana Henriques

O11 Balance and anxiety and depression symptoms in old age people

Joana Santos, Sara Lebre, Alda Marques

O12 Prevalence of postural changes and risk factors in school children and adolescents in a northern region (Porto)

Clarinda Festas, Sandra Rodrigues, Andrea Ribeiro, José Lumini

O13 Ischemic stroke vs. haemorrhagic stroke survival rate

Ana G. Figueiredo

O14 Chronobiological factors as responsible for the appearance of locomotor pathology in adolescents

Francisco J. Hernandez-Martinez, Liliana Campi, Mª Pino Quintana-Montesdeoca, Juan F. Jimenez-Diaz, Bienvenida C. Rodriguez-De-Vera

O15 Risk of malnutrition in the elderly of Bragança

Alexandra Parente, Mª Augusta Mata, Ana Mª Pereira, Adília Fernandes, Manuel Brás

O16 A Lifestyle Educational Programme for primary care diabetic patients: the design of a complex nursing intervention

Mª Rosário Pinto, Pedro Parreira, Marta L. Basto, Ana C. Rei, Lisete M. Mónico

O17 Medication adherence in elderly people

Gilberta Sousa, Clementina Morna, Otília Freitas, Gregório Freitas, Ana Jardim, Rita Vasconcelos

O18 Hospitalization for cervical cancer of residents in the metropolitan region of Porto Alegre, Southern Brazil, 2012 to 2014

Lina G. Horta, Roger S. Rosa, Luís F. Kranz, Rita C. Nugem, Mariana S. Siqueira, Ronaldo Bordin

O19 Oncologic assistance of high complexity: evaluation of regulating accesses

Rosiane Kniess, Josimari T. Lacerda

O20 Perceived barriers for using health care services by the older population as seen by the social sector: findings from the Vila Nova de Gaia Gerontological Plan

Joana Guedes, Idalina Machado, Sidalina Almeida, Adriano Zilhão, Helder Alves, Óscar Ribeiro

O21 Sleep difficulties and depressive symptoms in college students

Ana P. Amaral, Ana Santos, Joana Monteiro, Mª Clara Rocha, Rui Cruz

O22 Psychopathological symptoms and medication use in higher education

Ana P. Amaral, Marina Lourenço, Mª Clara Rocha, Rui Cruz

O23 Sexually transmitted diseases in higher education institutions

Sandra Antunes, Verónica Mendonça, Isabel Andrade, Nádia Osório, Ana Valado, Armando Caseiro, António Gabriel, Anabela C. Martins, Fernando Mendes

O24 Alcohol consumption and suicide ideation in higher education students

Lídia Cabral, Manuela Ferreira, Amadeu Gonçalves

O25 Quality of life in university students

Tatiana D. Luz, Leonardo Luz, Raul Martins

O26 Male and female adolescent antisocial behaviour: characterizing vulnerabilities in a Portuguese sample

Alice Morgado, Maria L. Vale-Dias

O27 Risk factors for mental health in higher education students of health sciences

Rui Porta-Nova

O28 International classification of functioning disability and health as reflexive reasoning in primary attention in health

Tânia C. Fleig, Éboni M. Reuter, Miriam B. Froemming, Sabrina L. Guerreiro, Lisiane L. Carvalho

O29 Risk factors and cardiovascular disease in Portalegre

Daniel Guedelha, P. Coelho, A. Pereira

O30 Health status of the elderly population living in Portalegre historic city centre: A longitudinal study

António Calha, Raul Cordeiro

O31 Student’s sleep in higher education: sleep quality among students of the IPB

Ana Gonçalves, Ana Certo, Ana Galvão, Mª Augusta Mata

O32 Trend in mortality from cervical cancer in the metropolitan area of Florianópolis, state of Santa Catarina, Brazil, 2000 to 2013

Aline Welter, Elayne Pereira, Sandra Ribeiro, Marcia Kretzer

O33 Adherence to treatment in the elderly in an urban environment in Spain

Juan-Fernando Jiménez-Díaz, Carla Jiménez-Rodríguez, Francisco-José Hernández-Martínez, Bienvenida-Del-Carmen Rodríguez-De-Vera, Alexandre Marques-Rodrigues

O34 Beira Baixa Blood Pressure Study (Study PABB)

Patrícia Coelho, Tiago Bernardes, Alexandre Pereira

O35 Trends in cervical cancer mortality statistics in Santa Catarina State, Brazil, by age group and macro-region, from 2000 to 2013

Patrícia Sousa, João G. Filho, Nazare Nazario, Marcia Kretzer

O36 Sleep problems among Portuguese adolescents: a public health issue

Odete Amaral, António Garrido, Nélio Veiga, Carla Nunes, Ana R. Pedro, Carlos Pereira

O37 Association between body fat and health-related quality of life in patients with type 2 diabetes

António Almeia, Helder M. Fernandes, Carlos Vasconcelos, Nelson Sousa, Victor M. Reis, M. João Monteiro, Romeu Mendes

O38 Therapy adherence and polypharmacy in non-institutionalized elderly from Amares county, Portugal

Isabel C. Pinto, Tânia Pires, João Gama

O39 Prevalence of surgical site infection in adults at a hospital unit in the North of Portugal

Vera Preto, Norberto Silva, Carlos Magalhães, Matilde Martins

O40 Frailty phenotype in old age: implications to intervention

Mafalda Duarte, Constança Paúl, Ignácio Martín

O41 Portuguese women: sexual symptoms in perimenopause

Arminda A. Pinheiro

O42 Predictive ability of the Perinatal Depression Screening and Prevention Tool – preliminary results of the categorical approach

Sandra Xavier, Julieta Azevedo, Elisabete Bento, Cristiana Marques, Mariana Marques, António Macedo, Ana T. Pereira

O43 Aging and muscle strength in patients with type 2 diabetes: cross sectional analysis

José P. Almeida, António Almeida, Josiane Alves, Nelson Sousa, Francisco Saavedra, Romeu Mendes

O44 Accessibility of the elderly in the prevention of hypertension in a family health unit

Ana S. Maia, Michelle T. Oliveira, Anderson R. Sousa, Paulo P. Ferreira, Luci S. Lopes, Eujcely C. Santiago

O45 Community Health screenings and self-reported chronic diseases

Sílvia Monteiro, Ângelo Jesus, Armanda Colaço, António Carvalho, Rita P. Silva, Agostinho Cruz

O46 Evaluation of indoor air quality in Kindergartens

Ana Ferreira, Catarina Marques, João P. Figueiredo, Susana Paixão

O47 Atmospheric exposure to chemical agents under the occupational activity of pathology technicians

Ana Ferreira, Carla Lopes, Fernando Moreira, João P. Figueiredo

O48 Occupational exposure to air pollutants in night entertainment venues workers

Ana Ferreira, Diana Ribeiro, Fernando Moreira, João P. Figueiredo, Susana Paixão

O49 Beliefs and attitudes of young people towards breastfeeding

Telma Fernandes, Diogo Amado, Jéssica Leal, Marcelo Azevedo, Sónia Ramalho

O50 Profiling informal caregivers: surveying needs in the care of the elderly

Catarina Mangas, Jaime Ribeiro, Rita Gonçalves

O51 Visual health in teenagers

Amélia F Nunes, Ana R. Tuna, Carlos R. Martins, Henriqueta D. Forte

O52 Amenable mortality and the geographic accessibility to healthcare in Portugal

Cláudia Costa, José A. Tenedório, Paula Santana

O53 Bacterial contamination of door handles in a São Paulo See Metropolitan Cathedral public restrooms in Brazil

J. A. Andrade, J. L. Pinto, C. Campofiorito, S. Nunes, A. Carmo, A. Kaliniczenco, B. Alves, F. Mendes, C. Jesus, F. Fonseca, F. Gehrke

O54 Adherence of patients to rehabilitation programmes

Carlos Albuquerque, Rita Batista, Madalena Cunha, António Madureira, Olivério Ribeiro, Rosa Martins

O55 Prevalence of malnutrition among Portuguese elderly living in nursing homes: preliminary results of the PEN-3S project

Teresa Madeira, Catarina Peixoto-Plácido, Nuno Santos, Osvaldo Santos, Astrid Bergland, Asta Bye, Carla Lopes, Violeta Alarcão, Beatriz Goulão, Nuno Mendonça, Paulo Nicola, João G. Clara

O56 Relation between emotional intelligence and mental illness in health students

João Gomes, Ana Querido, Catarina Tomás, Daniel Carvalho, Marina Cordeiro

P1 Fall risk factors in people older than 50 years old – a pilot report

Marlene C. Rosa, Alda Marques

P2 What about the Portuguese oldest old? A global overview using census data

Daniela Brandão, Óscar Ribeiro, Lia Araújo, Constança Paúl

P3 Prevalence of injuries in senior amateur volleyball athletes in Alentejo and Algarve clubs, Portugal: factors associated

Beatriz Minghelli, Sylvina Richaud

P4 Shame feelings and quality of life: the role of acceptance and decentring

Ana L. Mendes, Joana Marta-Simões, Inês A. Trindade, Cláudia Ferreira

P5 Assessment of social support during deployment in portuguese colonial war veterans

Teresa Carvalho, Marina Cunha, José Pinto-Gouveia

P6 Hospitalization for acute viral bronchiolitis of residents in the metropolitan region of Porto Alegre, Southern Brazil, 2012 to 2014

Morgana C. Fernandes, Roger S. Rosa, Rita C. Nugem, Luís F. Kranz, Mariana S. Siqueira, Ronaldo Bordin

P7 Falls-risk screening – an opportunity for preventing falls in the elderly from Nordeste

Anabela C. Martins, Anabela Medeiros, Rafaela Pimentel, Andreia Fernandes, Carlos Mendonça, Isabel Andrade, Susana Andrade, Ruth L. Menezes

P8 Aging provokes chronodisruption in mature people in temperature circadian rhythm

Rafael Bravo, Marta Miranda, Lierni Ugartemendia, José Mª Tena, Francisco L. Pérez-Caballero, Lorena Fuentes-Broto, Ana B. Rodríguez, Barriga Carmen

P9 The influence of climate and pollution factors in dengue cases of great ABC region, São Paulo

M. A. Carneiro, J. N. Domingues, S. Paixão, J. Figueiredo, V. B. Nascimento, C. Jesus, F Mendes, F. Gehrke, B. Alves, L. Azzalis, F. Fonseca

P10 Visual function and impact of visual therapy in children with learning disabilities: a pilot study

Ana R. Martins, Amélia Nunes, Arminda Jorge

P11 Edentulism and the need of oral rehabilitation among institutionalized elderly

Nélio Veiga, Ana Amorim, André Silva, Liliana Martinho, Luís Monteiro, Rafael Silva, Carina Coelho, Odete Amaral, Inês Coelho, Carlos Pereira, André Correia

P12 Therapy adherence of outpatients in the pharmacy services of a hospital unit

Diana Rodrigues, Nídia Marante, Pedro Silva, Sara Carvalho, André Rts Araujo, Maximiano Ribeiro, Paula Coutinho, Sandra Ventura, Fátima Roque

P13 Universal access and comprehensive care of oral health: an availability study

Cristina Calvo, Manoela Reses

P14 Is the respiratory function of children a predictor of air quality? Coimbra as a case study

Jorge Conde, Ana Ferreira, João Figueiredo

P15 Meaning-in-life of college students

David Silva, Luís Seiça, Raquel Soares, Ricardo Mourão, Teresa Kraus

O57 Training needs for nurses in palliative care

Ana C. Abreu, José M. Padilha, Júlia M. Alves

O58 Impact of computerized information systems in the global nurses’ workload: nurses’ perceptions and real-time

Paulino Sousa, Manuel Oliveira, Joana Sousa

O59 The perspective of health care professionals on self-care in hereditary neurodegenerative disease: a qualitative study

Sónia Novais, Felismina Mendes

O60 Contribution for health-related physical fitness reference values in healthy adolescents

Joana Pinto, Joana Cruz, Alda Marques

School of Health Sciences, University of Aveiro, 3810-193 Aveiro, Portugal

O61 Perception of learning, satisfaction and self-efficacy of nursing students about High-Fidelity Simulation

Hugo Duarte, Maria Dos Anjos Dixe, Pedro Sousa

O62 Analysis of statements of diagnosis about health deviation in self-care requisites customized in a Nursing Practice Support System (SAPE®): Management of therapeutic regimen

Inês Cruz, Fernanda Bastos, Filipe Pereira

O63 Hybrid management and hospital governance: doctors and nurses as managers

Francisco L. Carvalho, Teresa T. Oliveira, Vítor R. Raposo

O64 Time management in health professionals

Conceição Rainho, José C. Ribeiro, Isabel Barroso, Vítor Rodrigues

O65 Financial rewards and wellbeing in primary health care

Carmo Neves, Teresa C. Oliveira

O66 Patient safety promotion in the operating room

Bárbara Oliveira, Mª Carminda Morais, Pilar Baylina

O67 Difficulties and needs of pre-graduate nursing students in the area of Geriatrics/Gerontology

Rogério Rodrigues, Zaida Azeredo, Corália Vicente

O68 Teaching and learning sexuality in nursing education

Hélia Dias, Margarida Sim-Sim

O69 Entrepreneurial Motivations Questionnaire: AFC and CFA in academy

Pedro Parreira, Anabela Salgueiro-Oliveira, Amélia Castilho, Rosa Melo, João Graveto, José Gomes, Marina Vaquinhas, Carla Carvalho, Lisete Mónico, Nuno Brito

O70 Nursing intervention to patient with Permanent Pacemakers and Implantable Cardioverter Defibrillators: a qualitative analysis

Cassilda Sarroeira, José Amendoeira, Fátima Cunha, Anabela Cândido, Patrícia Fernandes, Helena R. Silva, Elsa Silva

O71 Alcohol consumption among nursing students: where does education fail?

Isabel Barroso, Leila Lapa, Cristina Antunes

O72 Labour stress in nursing

Ana Gonçalves, Ana Galvão, Mª José Gomes, Susana R. Escanciano

O73 The influence of safe staff nursing in patient satisfaction with nursing care

Maria Freitas, Pedro Parreira, João Marôco

O74 Intention to use eHealth strategies with nursing students

Ana R. Fernandes, Cremilde Cabral, Samuel Alves, Pedro Sousa

O75 Community Based Mental Health: contributions of an interdisciplinary international program for students in higher health education

António Ferreira, Fernanda Príncipe, Ulla-Maija Seppänen, Margarida Ferreira, Maribel Carvalhais, Marilene Silva

O76 Study of satisfaction at work of graduates in nursing: 2002-2014

Manuela Ferreira, Joana Silva, Jéssica Neves, Diana Costa, Bruno Santos, Soraia Duarte

O77 Health professionals’ attitudes towards breastfeeding

Sílvia Marques, Sónia Ramalho, Isabel Mendes

O78 Continuity of nursing care to person with type 2 diabetes

Clarisse Louro, Eva Menino, Maria Dixe, Sara S. Dias

O79 Stigma toward mental illness among future health professionals

Marina Cordeiro, Catarina Tomás, Ana Querido, Daniel Carvalho, João Gomes

O80 Working with fears and anxieties of medical students in search of a humanized care

Frederico C. Valim, Joyce O. Costa, Lúcia G. Bernardes

P16 Surgical paediatrics patients’ psycho prophylaxis at a teaching hospital

Helena Prebianchi

P17 Patient-perceived outcomes in physiotherapy – a pilot study

Marlene Cristina Rosa

P18 Building competencies for managers in nursing

Narcisa Gonçalves, Maria M. Martins, Paulina Kurcgant

P19 Theoretical basis underlying physiotherapy practice in stroke rehabilitation

André Vieira

P20 When the life-cycle ends: the nurse’s confrontation with death

Sandrina Bento, Sérgio Deodato, Isabel Rabiais

P21 Nursing students’ opinion about the supervision relationship during their first clinical experience

Laura Reis

P22 Nursing Relational Laboratory: Pedagogical, dialogic and critical project

Ana Torres, Sérgio Soares, Margarida Ferreira, Pedro Graça

P23 Job satisfaction of bioscientists at a Lisbon hospital

Céu Leitão, Renato Abreu, Fernando Bellém, Ana Almeida, Edna Ribeiro-Varandas, Ana Tavares

P24 Sociodemographic and professional profile of nurses and its relation with the importance of family in nursing practices

João G. Frade, Carolina Henriques, Eva Menino, Clarisse Louro, Célia Jordão

P25 Professional satisfaction of rehabilitation nurses

Sofia Neco, Carminda Morais, Pedro Ferreira

P26 The person living with a stoma: the formalization of knowledge in nursing

Carla R. Silva, Alice Brito, Antónia Silva

P27 Validation of the Portuguese versions of the nursing students’ perceptions of learning and learner satisfaction with simulation tool

Hugo Duarte, Maria Dos Anjos Dixe, Pedro Sousa

P28 Physiotherapists’ perceived knowledge on technologies for electronic health records for physiotherapy

Gabriela Postolache, Raul Oliveira, Isabel Moreira, Luísa Pedro, Sónia Vicente, Samuel Domingos, Octavian Postolache

P29 Quality of life and physical activity of medicine undergraduate students in the University of Southern Santa Catarina, Brazil

Darlen Silva, João G. Filho, Nazare Nazario, Marcia Kretzer, Dulcineia Schneider

P30 The curricular skills for decision making education in a Nursing Degree

Fátima M. Marques

P31 Effect of nurses’ mobilization in satisfaction at work and turnover: An empirical study in the hospital setting

Pedro Parreira, Carla Carvalho, Lisete M. Mónico, Carlos Pinto, Sara Vicente, São João Breda

P32 Entrepreneurial skills of students of polytechnic higher education in Portugal: Business influences

José H. Gomes, Rosa Melo, Pedro Parreira, Anabela Salgueiro, João Graveto, Marina Vaquinhas, Amélia Castilho

P33 Design and assessment of e-learning modules for Pharmacology

Ângelo Jesus, Nuno Duarte, José C. Lopes, Hélder Nunes, Agostinho Cruz

P34 Perspective of nurses involved in an action-research study on the changes observed in care provision: results from a focus group

Anabela Salgueiro-Oliveira, Pedro Parreira, Marta L. Basto, Luciene M. Braga

P35 Use of peer feedback by nursing students during clinical training: teacher’s perception

António Ferreira, Beatriz Araújo, José M. Alves, Margarida Ferreira, Maribel Carvalhais, Marilene Silva, Sónia Novais

P36 What’s new on endotracheal suctioning recommendations

Ana S. Sousa, Cândida Ferrito

P37 Assessment of the nurses satisfaction on the Central Region of Portugal

Pedro L. Ferreira, Alexandre Rodrigues, Margarida Ferreira, Isabel Oliveira

P38 Study of graduate’s satisfaction with the school of nursing

Manuela Ferreira, Jéssica Neves, Diana Costa, Soraia Duarte, Joana Silva, Bruno Santos

P39 Partnership between the school of nursing and the hospital: Supervisors´ perspectives

Cristina Martins, Ana P. Macedo, Odete Araújo, Cláudia Augusto, Fátima Braga, Lisa Gomes, Maria A. Silva, Rafaela Rosário

P40 Coping strategies of college students

Luís Pimenta, Diana Carreira, Patrícia Teles, Teresa Barros

P41 Emotional intelligence and mental health stigma in health students

Catarina Tomás, Ana Querido, Daniel Carvalho, João Gomes, Marina Cordeiro

P42 Stigma of mental health assessment: Comparison between health courses

Daniel Carvalho, Ana Querido, Catarina Tomás, João Gomes, Marina Cordeiro

O81 Short- and long-term effects of pulmonary rehabilitation in mild COPD

Cristina Jácome, Alda Marques

O82 Phonological awareness programme for preschool children

Sylvie Capelas, Andreia Hall, Dina Alves, Marisa Lousada

O83 REforma ATIVA: An efficient health promotion program to be implemented during retirement

Mª Helena Loureiro, Ana Camarneiro, Margarida Silva, Aida Mendes, Ana Pedreiro

O84 Intervention for men who batter women, a case report

Anne G.Silva, Elza S. Coelho

O85 Immediate effects of Bowen Therapy on muscle tone and flexibility

Flávio Melo, Fernando Ribeiro, Rui Torres, Rui Costa

O86 Predictive equation for incremental shuttle walk test in adolescents

Tânia Pinho, Cristina Jácome, Alda Marques

O87 Life satisfaction and psychopathology in institutionalized elderly people: The results of an adapted Mindfulness-Based Stress Reduction program

Bárbara Cruz, Daniel Seabra, Diogo Carreira, Maria Ventura

O88 Outcome changes in COPD rehabilitation: exploring the relationship between physical activity and health-related outcomes

Joana Cruz, Dina Brooks, Alda Marques

O89 Assessing the effectiveness of a Complex Nursing Intervention

M Rosário Pinto, Pedro Parreira, Marta Lima-Basto, Miguel Neves, Lisete M. Mónico

O90 Psychotherapeutic intervention in addiction disorders: Change in psychopathological symptoms and emotional states

Carla Bizarro, Marina Cunha, Ana Galhardo, Couto Margarida, Ana P. Amorim, Eduardo Silva

O91 Economic impact of a nursing intervention program to promote self-management in COPD

Susana Cruz, José M. Padilha, Jorge Valente

O92 Multimodal acute pain management during uterine artery embolization in treatment of uterine myomas

José T. Guerrero, Francisco P. Caballero, Rafael B. Santos, Estefania P. Gonzalez, Fátima M. Monago, Lierni U. Ugalde, Marta M. Vélez, Maria J. Tena

O93 Fluid administration strategies in major surgery: Goal-directed therapy

José T. Guerrero, Rafael Bravo, Francisco L. Pérez-Caballero, Isabel A. Becerra, Mª Elizabeth Agudelo, Guadalupe Acedo, Roberto Bajo

O94 Development and implementation of a self-management educational programme using lay-led’s in adolescents Spina Bifida: A pilot study

Isabel Malheiro, Filomena Gaspar, Luísa Barros

O95 Influence of chair-based yoga exercises on salivary anti-microbial proteins in institutionalized frail-elderly women: a preliminary study

Guilherme Furtado, Mateus Uba-Chupel, Mariana Marques, Luís Rama, Margarida Braga, José P. Ferreira, Ana Mª Teixeira

O96 High intensity interval training vs moderate intensity continuous training impact on diabetes 2

João Cruz, Tiago Barbosa, Ângela Simões, Luís Coelho

O97 Family caregiver of people with pressure ulcer: Nursing intervention plan

Alexandre Rodrigues, Juan-Fernando Jiménez-Díaz, Francisco Martinez-Hernández, Bienvenida Rodriguez-De-Vera, Pedro Ferreira, Alexandrina Rodrigues

O98 Chronic effects of exercise on motor memory consolidation in elderly people

André Ramalho, João Petrica, Pedro Mendes, João Serrano, Inês Santo, António Rosado

O99 Impression cytology of the ocular surface: Collection technique and sample processing

Paula Mendonça, Kátia Freitas

O100 Does sport practice affect the reaction time in neuromuscular activity?

Dora Ferreira, António Brito, Renato Fernandes

O101 Efficiency of the enteral administration of fibbers in the treatment of chronic obstipation

Sofia Gomes, Fernando Moreira, Cláudia Pinho, Rita Oliveira, Ana I. Oliveira

O102 Fast decalcifier in compact bone and spongy bone

Paula Mendonça, Ana P. Casimiro, Patrícia Martins, Iryna Silva

O103 Health promotion in the elderly – Intervention project in dementia

Diana Evangelista

O104 Prevention of musculoskeletal disorders through an exercise protocol held in labour context

Catarina Leitão, Fábia Velosa, Nélio Carecho, Luís Coelho

O105 Knowledge of teachers and other education agents on diabetes type 1: Effectiveness of an intervention program

Eva Menino, Anjos Dixe, Helena Catarino, Fátima Soares, Ester Gama, Clementina Gordo

O106 Treatment of diabetic peripheral neuropathic pain: a systematic review of clinical trials of phase II and III

Eliana Moreira, Cristiana Midões, Marlene Santos

O107 New drugs for osteoporosis treatment: Systematic review of clinical trials of phase II and III

Sara Machado, Vânia P. Oliveira, Marlene Santos

O108 Promoting hope at the end of life: Effectiveness of an Intervention Programme

Ana Querido, Anjos Dixe, Rita Marques, Zaida Charepe

P43 Psychomotor therapy effects on adaptive behaviour and motor proficiency of adults with intellectual disability

Ana Antunes, Sofia Santos

P44 The effect of exercise therapy in multiple sclerosis – a single study case

Marlene C. Rosa

P45 Physical condition and self-efficacy in people with fall risk – a preliminary study

Marlene C. Rosa, Silvana F. Marques

P46 Shock waves: their effectiveness in improving the symptoms of calcifying tendinitis of the shoulder

Beatriz Minghelli, Eulália Caro

P47 Pacifier – construction and pilot application of a parenting intervention for parents of babies until six months in primary health care

Mª José Luís, Teresa Brandão

P48 The influence of Motor Imagery in fine motor skills of individuals with disabilities

Pedro Mendes, Daniel Marinho, João Petrica, Diogo Monteiro, Rui Paulo, João Serrano, Inês Santo

P49 Evaluation of the effects of a walking programme on the fall risk factors in older people – a longitudinal pilot study

Lina Monteiro, Fátima Ramalho, Rita Santos-Rocha, Sónia Morgado, Teresa Bento

P50 Nursing intervention programme in lifestyles of adolescents

Gilberta Sousa, Otília Freitas, Isabel Silva, Gregório Freitas, Clementina Morna, Rita Vasconcelos

P51 The person submitted to hip replacement rehabilitation, at home

Tatiana Azevedo, Salete Soares, Jacinta Pisco

P52 Effects of Melatonin use in the treatment of neurovegetative diseases

Paulo P. Ferreira, Efrain O. Olszewer, Michelle T. Oliveira, Anderson R. Sousa, Ana S. Maia, Sebastião T. Oliveira

P53 Review of Phytotherapy and other natural substances in alcohol abuse and alcoholism

Erica Santos, Ana I. Oliveira, Carla Maia, Fernando Moreira, Joana Santos, Maria F. Mendes, Rita F. Oliveira, Cláudia Pinho

P54 Dietary programme impact on biochemical markers in diabetics: systematic review

Eduarda Barreira, Ana Pereira, Josiana A. Vaz, André Novo

P55 Biological approaches to knee osteoarthritis: platelet-rich plasma and hyaluronic acid

Luís D. Silva, Bruno Maia, Eduardo Ferreira, Filipa Pires, Renato Andrade, Luís Camarinha

P56 Platelet-rich plasma and hyaluronic acid intra-articular injections for the treatment of ankle osteoarthritis

Luís D. Silva, Bruno Maia, Eduardo Ferreira, Filipa Pires, Renato Andrade, Luís Camarinha

P57 The impact of preventive measures in the incidence of diabetic foot ulcers: a systematic review

Ana F. César, Mariana Poço, David Ventura, Raquel Loura, Pedro Gomes, Catarina Gomes, Cláudia Silva, Elsa Melo, João Lindo

P58 Dating violence among young adolescents

Joana Domingos, Zaida Mendes, Susana Poeta, Tiago Carvalho, Catarina Tomás, Helena Catarino, Mª Anjos Dixe

P59 Physical activity and motor memory in pedal dexterity

André Ramalho, António Rosado, Pedro Mendes, Rui Paulo, Inês Garcia, João Petrica

P60 The effects of whole body vibration on the electromyographic activity of thigh muscles

Sandra Rodrigues, Rui Meneses, Carlos Afonso, Luís Faria, Adérito Seixas

P61 Mental health promotion in the workplace

Marina Cordeiro, Paulo Granjo, José C. Gomes

P62 Influence of physical exercise on the self-perception of body image in elderly women: A systematic review of qualitative studies

Nelba R. Souza, Guilherme E. Furtado, Saulo V. Rocha, Paula Silva, Joana Carvalho

O109 Psychometric properties of the Portuguese version of the Éxamen Geronto-Psychomoteur (P-EGP)

Marina Ana Morais, Sofia Santos, Paula Lebre, Ana Antunes

O110 Symptoms of depression in the elderly population of Portugal, Spain and Italy

António Calha

O111 Emotion regulation strategies and psychopathology symptoms: A comparison between adolescents with and without deliberate self-harm

Ana Xavier, Marina Cunha, José Pinto-Gouveia

O112 Prevalence of physical disability in people with leprosy

Liana Alencar, Madalena Cunha, António Madureira

O113 Quality of life and self-esteem in type 1 and type 2 diabetes mellitus patients

Ilda Cardoso, Ana Galhardo, Fernanda Daniel, Vítor Rodrigues

O114 Cross-cultural comparison of gross motor coordination in children from Brazil and Portugal

Leonardo Luz, Tatiana Luz, Maurício R. Ramos, Dayse C. Medeiros, Bruno M. Carmo, André Seabra, Cristina Padez, Manuel C. Silva

O115 Electrocardiographic differences between African and Caucasian people

António Rodrigues, Patrícia Coelho, Alexandre Coelho

O116 Factors associated with domestic, sexual and other types of violence in the city of Palhoça - Brazil

Madson Caminha, Filipe Matheus, Elenice Mendes, Jony Correia, Marcia Kretzer

O117 Tinnitus prevalence study of users of a hospital of public management - Spain

Francisco J. Hernandez-Martinez, Juan F. Jimenez-Diaz, Bienvendida C. Rodriguez-De-Vera, Carla Jimenez-Rodriguez, Yadira Armas-Gonzalez

O118 Difficulties experienced by parents of children with diabetes mellitus of preschool age in therapeutic and nutritional management

Cátia Rodrigues, Rosa Pedroso

O119 E-mental health - “nice to have” or “must have”? Exploring the attitudes towards e-mental health in the general population

Jennifer Apolinário-Hagen, Viktor Vehreschild

O120 Violence against children and adolescents and the role of health professionals: Knowing how to identify and care

Milene Veloso, Celina Magalhães, Isabel Cabral, Maira Ferraz

O121 Marital violence. A study in the Algarve population

Filipe Nave, Emília Costa, Filomena Matos, José Pacheco

O122 Clinical factors and adherence to treatment in ischemic heart disease

António Dias, Carlos Pereira, João Duarte, Madalena Cunha, Daniel Silva

O123 Can religiosity improve optimism in participants in states of illness, when controlling for life satisfaction?

Lisete M. Mónico, Valentim R. Alferes, Mª São João Brêda, Carla Carvalho, Pedro M. Parreira

O124 Empowerment, knowledge and quality of life of people with diabetes type 2 in the Alto Minho Health Local Unit

Mª Carminda Morais, Pedro Ferreira, Rui Pimenta, José Boavida

O125 Antihypertensive therapy adherence among hypertensive patients from Bragança county, Portugal

Isabel C. Pinto, Tânia Pires, Catarina Silva

O126 Subjective perception of sexual achievement - An exploratory study on people with overweight

Maria Ribeiro, Maria Viega-Branco, Filomena Pereira, Ana Mª Pereira

O127 Physical activity level and associated factors in hypertensive individuals registered in the family health strategy of a basic health unit from the city of Palhoça, Santa Catarina, Brazil

Fabrícia M. Almeida, Gustavo L. Estevez, Sandra Ribeiro, Marcia R. Kretzer

O128 Perception of functional fitness and health in non-institutionalised elderly from rural areas

Paulo V. João, Paulo Nogueira, Sandra Novais, Ana Pereira, Lara Carneiro, Maria Mota

O129 Medication adherence in patients with type 2 diabetes mellitus treated at primary health care in Coimbra

Rui Cruz, Luiz Santiago, Carlos Fontes-Ribeiro

O130 Multivariate association between body mass index and multi-comorbidities in elderly people living in low socio-economic status context

Guilherme Furtado, Saulo V. Rocha, André P. Coutinho, João S. Neto, Lélia R. Vasconcelos, Nelba R. Souza, Estélio Dantas

O131 Metacognition, rumination and experiential avoidance in Borderline Personality Disorder

Alexandra Dinis, Sérgio Carvalho, Paula Castilho, José Pinto-Gouveia

O132 Health issues in a vulnerable population: nursing consultation in a public bathhouse in Lisbon

Alexandra Sarreira-Santos, Amélia Figueiredo, Lurdes Medeiros-Garcia, Paulo Seabra

O133 The perception of quality of life in people with multiple sclerosis accompanied in External Consultation of the Local Health Unit of Alto Minho

Rosa Rodrigues, Mª Carminda Morais, Paula O. Fernandes

O134 Representation of interaction established between immigrant women and nurse during pregnancy to postpartum, from the perspective of immigrant women

Conceição Santiago, Mª Henriqueta Figueiredo, Marta L. Basto

O135 Illness perceptions and medication adherence in hypertension

Teresa Guimarães, André Coelho, Anabela Graça, Ana M. Silva, Ana R. Fonseca

O136 A Portuguese study on adults’ intimate partner violence, interpersonal trust and hope

Luz Vale-Dias, Bárbara Minas, Graciete Franco-Borges

P63 QOL’ predictors of people with intellectual disability and general population

Cristina Simões, Sofia Santos

P64 Content validation of the Communication Disability Profile (CDP) - Portuguese Version

Ana Serra, Maria Matos, Luís Jesus

P65 Study of biochemical and haematological changes in football players

Ana S. Tavares, Ana Almeida, Céu Leitão, Edna Varandas, Renato Abreu, Fernando Bellém

P66 Body image dissatisfaction in inflammatory bowel disease: exploring the role of chronic illness-related shame

Inês A. Trindade, Cláudia Ferreira, José Pinto-Gouveia, Joana Marta-Simões

P67 Obesity and sleep in the adult population - a systematic review

Odete Amaral, Cristiana Miranda, Pedro Guimarães, Rodrigo Gonçalves, Nélio Veiga, Carlos Pereira

P68 Frequency of daytime sleepiness and obstructive sleep apnea risk in COPD patients

Tânia C. Fleig, Elisabete A. San-Martin, Cássia L. Goulart, Paloma B. Schneiders, Natacha F. Miranda, Lisiane L. Carvalho, Andrea G. Silva

P69 Working with immigrant-origin clients: discourses and practices of health professionals

Joana Topa, Conceição Nogueira, Sofia Neves

P70 Systemic Lupus Erythematosus – what are audiovestibular changes?

Rita Ventura, Cristina Nazaré

P71 Mental disorders in the oldest old: findings from the Portuguese national hospitalization database

Daniela Brandão, Alberto Freitas, Óscar Ribeiro, Constança Paúl

P72 Recurrence analysis in postural control in children with cerebral palsy

Cristiana Mercê, Marco Branco, Pedro Almeida, Daniela Nascimento, Juliana Pereira, David Catela

P73 The experience of self-care in the elderly with COPD: contributions to reflect proximity care

Helga Rafael

P74 Culturally competent nurses: managing unpredictability in clinical practice with immigrants

Alcinda C. Reis

O137 Paediatric speech and language screening: An instrument for health professionals

Ana Mendes, Ana R. Valente, Marisa Lousada

O138 Anthropometric and nutritional assessment in bodybuilders

Diana Sousa, Ana L. Baltazar, Mª Helena Loureiro

O139 Computerized adventitious respiratory sounds in children with lower respiratory tract infections

Ana Oliveira, José Aparício, Alda Marques

O140 Role of computerized respiratory sounds as a marker in LRTI

Alda Marques, Ana Oliveira, Joana Neves, Rodrigo Ayoub

O141 Confirmatory factor analysis of the Personal Wellbeing Index in people with chronic kidney disease

Luís Sousa, Cristina Marques-Vieira, Sandy Severino, Helena José

O142 Phonological awareness skills in school aged children

Inês Cadorio, Marisa Lousada

O143 Assessment of early memories of warmth and safeness in interaction with peers: its relationship with psychopathology in adolescence

Marina Cunha, Diogo Andrade, Ana Galhardo, Margarida Couto

O144 The molecular effects induced by single shot irradiation on a diffuse large B cell lymphoma cell line

Fernando Mendes, Cátia Domingues, Susann Schukg, Ana M. Abrantes, Ana C. Gonçalves, Tiago Sales, Ricardo Teixo, Rita Silva, Jéssica Estrela, Mafalda Laranjo, João Casalta-Lopes, Clara Rocha, Paulo C. Simões, Ana B. Sarmento-Ribeiro, Mª Filomena Botelho, Manuel S. Rosa

O145 Morpho-functional characterization of cardiac chambers by Transthoracic Echocardiography, in young athletes of gymnastics competition

Virgínia Fonseca, Diogo Colaço, Vanessa Neves

O146 Prevalence of the antibodies of the new histo-blood system – FORS system

Carlos Jesus, Camilla Hesse, Clara Rocha, Nádia Osório, Ana Valado, Armando Caseiro, António Gabriel, Lola Svensson, Fernando Mendes, Wafa A. Siba, Cristina Pereira, Jorge Tomaz

O147 Assessment of the war-related perceived threat in Portuguese Colonial War Veterans

Teresa Carvalho, José Pinto-Gouveia, Marina Cunha

O148 Pulse transit time estimation for continuous blood pressure measurement: A comparative study

Diana Duarte, Nuno V. Lopes, Rui Fonseca-Pinto

O149 Blood pressure assessment during standard clinical manoeuvres: A non-invasive PPT based approach

Diana Duarte, Nuno V. Lopes, Rui Fonseca-Pinto

O150 Development and initial validation of the Activities and Participation Profile related to Mobility (APPM)

Anabela C. Martins

O151 MEASYCare-2010 Standard–A geriatric evaluation system in primary health care: Reliability and validity of the latest version in Portugal

Piedade Brandão, Laura Martins, Margarida Cardoso

O152 Interrater and intrarater reliability and agreement of the range of shoulder flexion in the standing upright position through photographic assessment

Nuno Morais, Joana Cruz

O153 Three-dimensional biofabrication techniques for tissue regeneration

Nuno Alves, Paula Faria, Artur Mateus, Pedro Morouço

O154 A new computer tool for biofabrication applied to tissue engineering

Nuno Alves, Nelson Ferreira, Artur Mateus, Paula Faria, Pedro Morouço

O155 Development and psychometric qualities of a scale to measure the functional independence of adolescents with motor impairment

Isabel Malheiro, Filomena Gaspar, Luísa Barros

O156 Organizational Trust in Health services: Exploratory and Confirmatory factor analysis of the Organizational Trust Inventory- Short Form (OTI-SF)

Pedro Parreira, Andreia Cardoso, Lisete Mónico, Carla Carvalho, Albino Lopes, Anabela Salgueiro-Oliveira

O157 Thermal symmetry: An indicator of occupational task asymmetries in physiotherapy

Adérito Seixas, Valter Soares, Tiago Dias, Ricardo Vardasca, Joaquim Gabriel, Sandra Rodrigues

O158 A study of ICT active monitoring adoption in stroke rehabilitation

Hugo Paredes, Arsénio Reis, Sara Marinho, Vítor Filipe, João Barroso

O159 Paranoia Checklist (Portuguese Version): Preliminary studies in a mixed sample of patients and healthy controls

Carolina Da Motta, Célia B. Carvalho, José Pinto-Gouveia, Ermelindo Peixoto

O160 Reliability and validity of the Composite Scale on Morningness: European Portuguese version, in adolescents and young adults

Ana A. Gomes, Vanessa Costa, Diana Couto, Daniel R. Marques, José A. Leitão, José Tavares, Maria H. Azevedo, Carlos F. Silva

O161 Evaluation scale of patient satisfaction with nursing care: Psychometric properties evaluation

João Freitas, Pedro Parreira, João Marôco

O162 Impact of fibromyalgia on quality of life: Comparing results from generic instruments and FIQR

Miguel A. Garcia-Gordillo, Daniel Collado-Mateo, Gang Chen, Angelo Iezzi, José A. Sala, José A. Parraça, Narcis Gusi

O163 Preliminary study of the adaptation and validation of the Rating Scale of Resilient Self: Resilience, self-harm and suicidal ideation in adolescents

Jani Sousa, Mariana Marques, Jacinto Jardim, Anabela Pereira, Sónia Simões, Marina Cunha

O164 Development of the first pressure ulcer in inpatient setting: Focus on length of stay

Pedro Sardo, Jenifer Guedes, João Lindo, Paulo Machado, Elsa Melo

O165 Forms of Self-Criticizing and Self-Reassuring Scale: Adaptation and early findings in a sample of Portuguese children

Célia B. Carvalho, Joana Benevides, Marina Sousa, Joana Cabral, Carolina Da Motta

O166 Predictive ability of the Perinatal Depression Screening and Prevention Tool – Preliminary results of the dimensional approach

Ana T. Pereira, Sandra Xavier, Julieta Azevedo, Elisabete Bento, Cristiana Marques, Rosa Carvalho, Mariana Marques, António Macedo

O167 Psychometric properties of the BaSIQS-Basic Scale on insomnia symptoms and quality of sleep, in adults and in the elderly

Ana M. Silva, Juliana Alves, Ana A. Gomes, Daniel R. Marques, Mª Helena Azevedo, Carlos Silva

O168 Enlightening the human decision in health: The skin melanocytic classification challenge

Ana Mendes, Huei D. Lee, Newton Spolaôr, Jefferson T. Oliva, Wu F. Chung, Rui Fonseca-Pinto

O169 Test-retest reliability household life study and health questionnaire Pomerode (SHIP-BRAZIL)

Keila Bairros, Cláudia D. Silva, Clóvis A. Souza, Silvana S. Schroeder

O170 Characterization of sun exposure behaviours among medical students from Nova Medical School

Elsa Araújo, Helena Monteiro, Ricardo Costa, Sara S. Dias, Jorge Torgal

O171 Spirituality in pregnant women

Carolina G. Henriques, Luísa Santos, Elisa F. Caceiro, Sónia A. Ramalho

O172 Polypharmacy in older patients with cancer

Rita Oliveira, Vera Afreixo, João Santos, Priscilla Mota, Agostinho Cruz, Francisco Pimentel

O173 Quality of life of caregivers of people with advanced chronic disease: Translation and validation of the quality of life in life threatening illness - family carer version (QOLLTI-C-PT)

Rita Marques, Mª Anjos Dixe, Ana Querido, Patrícia Sousa

O174 The psychometric properties of the brief Other as Shamer Scale for Children (OAS-C): preliminary validation studies in a sample of Portuguese children

Joana Benevides, Carolina Da Motta, Marina Sousa, Suzana N. Caldeira, Célia B. Carvalho

O175 Measuring emotional intelligence in health care students – Revalidation of WLEIS-P

Ana Querido, Catarina Tomás, Daniel Carvalho, João Gomes, Marina Cordeiro

O176 Health indicators in prenatal assistance: The impact of computerization and of under-production in basic health centres

Joyce O. Costa, Frederico C. Valim, Lígia C. Ribeiro

O177 Hope genogram: Assessment of resources and interaction patterns in the family of the child with cerebral palsy

Zaida Charepe, Ana Querido, Mª Henriqueta Figueiredo

O178 The influence of childbirth type in postpartum quality of life

Priscila S. Aquino, Samila G. Ribeiro, Ana B. Pinheiro, Paula A. Lessa, Mirna F. Oliveira, Luísa S. Brito, Ítalo N. Pinto, Alessandra S. Furtado, Régia B. Castro, Caroline Q. Aquino, Eveliny S. Martins

O179 Women’s beliefs about pap smear test and cervical cancer: influence of social determinants

Ana B Pinheiro, Priscila S. Aquino, Lara L. Oliveira, Patrícia C. Pinheiro, Caroline R. Sousa, Vívien A. Freitas, Tatiane M. Silva, Adman S. Lima, Caroline Q. Aquino, Karizia V. Andrade, Camila A. Oliveira, Eglidia F. Vidal

O180 Validity of the Portuguese version of the ASI-3: Is anxiety sensitivity a unidimensional or multidimensional construct?

Ana Ganho-Ávila, Mariana Moura-Ramos, Óscar Gonçalves, Jorge Almeida

O181 Lifestyles of higher education students: the influence of self-esteem and psychological well-being

Armando Silva, Irma Brito, João Amado

P75 Assessing the quality of life of persons with significant intellectual disability: Portuguese version of Escala de San Martín

António Rodrigo, Sofia Santos, Fernando Gomes

P76 Childhood obesity and breastfeeding - A systematic review

Marlene C. Rosa, Silvana F. Marques

P77 Cross-cultural adaptation of the Foot and Ankle Ability Measure (FAAM) for the Portuguese population

Sara Luís, Luís Cavalheiro, Pedro Ferreira, Rui Gonçalves

P78 Cross-cultural adaptation of the Patient-Rated Wrist Evaluation score (PRWE) for the Portuguese population

Rui S. Lopes, Luís Cavalheiro, Pedro Ferreira, Rui Gonçalves

P79 Cross-cultural adaptation of the Myocardial Infraction Dimensional Assessment Scale (MIDAS) for Brazilian Portuguese language

Bruno H. Fiorin, Marina S. Santos, Edmar S. Oliveira, Rita L. Moreira, Elizabete A. Oliveira, Braulio L. Filho

P80 The revised Portuguese version of the Three-Factor Eating Questionnaire: A confirmatory factor analysis

Lara Palmeira, Teresa Garcia, José Pinto-Gouveia, Marina Cunha

P81 Assessing weight-related psychological inflexibility: An exploratory factor analysis of the AAQW’s Portuguese version

Sara Cardoso, Lara Palmeira, Marina Cunha; José Pinto-Gouveia

P82 Validation of the Body Appreciation Scale-2 for Portuguese women

Joana Marta-Simões, Ana L. Mendes, Inês A. Trindade, Sara Oliveira, Cláudia Ferreira

P83 The Portuguese validation of the Dietary Intent Scale

Ana L. Mendes, Joana Marta-Simões, Inês A. Trindade, Cláudia Ferreira

P84 Construction and validation of the Inventory of Marital Violence (IVC)

Filipe Nave

P85 Portable continuous blood pressure monitor system

Mariana Campos, Iris Gaudêncio, Fernando Martins, Lino Ferreira, Nuno Lopes, Rui Fonseca-Pinto

P86 Construction and validation of the Scale of Perception of the Difficulties in Caring for the Elderly (SPDCE)

Rogério Rodrigues, Zaida Azeredo, Corália Vicente

P87 Development and validation of a comfort rating scale for the elderly hospitalized with chronic illness

Joana Silva, Patrícia Sousa, Rita Marques

P88 Construction and validation of the Postpartum Paternal Quality of Life Questionnaire (PP-QOL)

Isabel Mendes, Rogério Rodrigues, Zaida Azeredo, Corália Vicente

P89 Infrared thermal imaging: A tool for assessing diabetic foot ulcers

Ricardo Vardasca, Ana R. Marques, Adérito Seixas, Rui Carvalho, Joaquim Gabriel

P90 Pressure ulcers in an intensive care unit: An experience report

Paulo P. Ferreira, Michelle T. Oliveira, Anderson R. Sousa, Ana S. Maia, Sebastião T. Oliveira, Pablo O. Costa, Maiza M. Silva

P91 Validation of figures used in evocations: instrument to capture representations

Cristina Arreguy-Sena, Nathália Alvarenga-Martins, Paulo F. Pinto, Denize C. Oliveira, Pedro D. Parreira, Antônio T. Gomes, Luciene M. Braga

P92 Telephone assistance to decrease burden in informal caregivers of stroke older people: Monitoring and diagnostic evaluation

Odete Araújo, Isabel Lage, José Cabrita, Laetitia Teixeira

P93 Hope of informal caregivers of people with chronic and advanced disease

Rita Marques, Mª Anjos Dixe, Ana Querido, Patrícia Sousa

P94 Functionality and quality information from the Portuguese National Epidemiological Surveillance System

Sara Silva, Eugénio Cordeiro, João Pimentel

P95 Resting metabolic rate objectively measured vs. Harris and Benedict formula

Vera Ferro-Lebres, Juliana A. Souza, Mariline Tavares

O182 Characteristics of non-urgent patients: Cross-sectional study of an emergency department

Mª Anjos Dixe, Pedro Sousa, Rui Passadouro, Teresa Peralta, Carlos Ferreira, Georgina Lourenço

O183 Physical fitness and health in children of the 1st Cycle of Education

João Serrano, João Petrica, Rui Paulo, Samuel Honório, Pedro Mendes

O184 The impact of physical activity on sleep quality, in children

Alexandra Simões, Lucinda Carvalho, Alexandre Pereira

O185 What is the potential for using Information and Communication Technologies in Arterial Hypertension self-management?

Sara Silva, Paulino Sousa, José M. Padilha

O186 Exploring psychosocial factors associated with risk of falling in older patients undergoing haemodialysis

Daniela Figueiredo, Carolina Valente, Alda Marques

O187 Development of pressure ulcers on the face in patients undergoing non-invasive ventilation

Patrícia Ribas, Joana Sousa, Frederico Brandão, Cesar Sousa, Matilde Martins

O188 The elder hospitalized: Limiting factors of comfort

Patrícia Sousa, Rita Marques

O189 Physical activity and health state self-perception by Portuguese adults

Francisco Mendes, Rosina Fernandes, Emília Martins, Cátia Magalhães, Patrícia Araújo

O190 Satisfaction with social support in the elderly of the district of Bragança

Carla Grande, Mª Augusta Mata, Juan G. Vieitez

O191 Prevalence of death by traumatic brain injury and associated factors in intensive care unit of a general hospital, Brazil

Bruna Bianchini, Nazare Nazario, João G. Filho, Marcia Kretzer

O192 Relation between family caregivers burden and health status of elderly dependents

Tânia Costa, Armando Almeida, Gabriel Baffour

O193 Phenomena sensitive to nursing care in day centre

Armando Almeida, Tânia Costa, Gabriel Baffour

O194 Frailty: what do the elderly think?

Zaida Azeredo, Carlos Laranjeira, Magda Guerra, Ana P. Barbeiro

O195 The therapeutic self-care as a nursing-sensitive outcome: A correlational study

Regina Ferreira

O196 Phonetic-phonological acquisition for the European Portuguese from 18 months to 6 years and 12 months

Sara Lopes, Liliana Nunes, Ana Mendes

O197 Quality of life of patients undergoing liver transplant surgery

Julian Martins, Dulcineia Schneider, Marcia Kretzer, Flávio Magajewski

O198 Professional competences in health: views of older people from different European Countries

Célia Soares, António Marques

O199 Life satisfaction of working adults due to the number of hours of weekly exercise

Marco Batista, Ruth J. Castuera, Helena Mesquita, António Faustino, Jorge Santos, Samuel Honório

O200 Therapeutic itinerary of women with breast cancer in Santa Maria City/RS

Betina P. Vizzotto, Leticia Frigo, Hedioneia F. Pivetta

O201 The breastfeeding prevalence at 4 months: Maternal experience as a determining factor

Dolores Sardo

O202 The impact of the transition to parenthood in health and well-being

Cristina Martins, Wilson Abreu, Mª Céu Figueiredo

P96 Self-determined motivation and well-being in Portuguese active adults of both genders

Marco Batista, Ruth Jimenez-Castuera, João Petrica, João Serrano, Samuel Honório, Rui Paulo, Pedro Mendes

P97 The geriatric care: ways and means of comforting

Patrícia Sousa, Rita Marques

P98 The influence of relative age, subcutaneous adiposity and physical growth on Castelo Branco under-15 soccer players 2015

António Faustino, Paulo Silveira, João Serrano, Rui Paulo, Pedro Mendes, Samuel Honório

P99 Data for the diagnostic process focused on self-care – managing medication regime: An integrative literature review

Catarina Oliveira, Fernanda Bastos, Inês Cruz

P100 Art therapy as mental health promotion for children

Cláudia K. Rodriguez, Márcia R. Kretzer, Nazaré O. Nazário

P101 Chemical characterization of fungal chitosan for industrial applications

Pedro Cruz, Daniela C. Vaz, Rui B. Ruben, Francisco Avelelas, Susana Silva, Mª Jorge Campos

P102 The impact of caring older people at home

Maria Almeida, Liliana Gonçalves, Lígia Antunes

P103 Development of the first pressure ulcer in an inpatient setting: Focus on patients’ characteristics

Pedro Sardo, Jenifer Guedes, João Simões, Paulo Machado, Elsa Melo

P104 Association between General Self-efficacy and Physical Activity among Adolescents

Susana Cardoso, Osvaldo Santos, Carla Nunes, Isabel Loureiro

O203 Characterization of the habits of online acquisition of medicinal products in Portugal

Flávia Santos, Gilberto Alves

O204 Waiting room – A space for health education

Cláudia Soar, Teresa O. Marsi

O205 Safey culture evaluation in hospitalized children

Ernestina Silva, Dora Pedrosa, Andrea Leça, Daniel Silva

O206 Sexual Self-awareness and Body Image

Ana Galvão, Maria Gomes, Paula Fernandes, Ana Noné

O207 Perception of a Portuguese population regarding the acquisition and consumption of functional foods

Jaime Combadão, Cátia Ramalhete, Paulo Figueiredo, Patrícia Caeiro

O208 The work process in primary health care: evaluation in municipalities of southern Brazil

Karine C. Fontana, Josimari T. Lacerda, Patrícia O. Machado

O209 Exploration and evaluation of potential probiotic lactic acid bacteria isolated from Amazon buffalo milk

Raphaelle Borges, Flávio Barbosa, Dayse Sá

O210 Road safety for children: Using children’s observation, as a passenger

Germana Brunhoso, Graça Aparício, Amâncio Carvalho

O211 Perception and application of quality-by-design by the Pharmaceutical industry in Portugal

Ana P. Garcia, Paula O. Fernandes, Adriana Santos

O212 Oral health among Portuguese children and adolescents: a public health issue

Nélio Veiga, Carina Brás, Inês Carvalho, Joana Batalha, Margarida Glória, Filipa Bexiga, Inês Coelho, Odete Amaral, Carlos Pereira

O213 Plant species as a medicinal resource in Igatu-Chapada Diamantina (Bahia, Brazil)

Cláudia Pinho, Nilson Paraíso, Ana I. Oliveira, Cristóvão F. Lima, Alberto P. Dias

O214 Characterization of cognitive and functional performance in everyday tasks: Implications for health in institutionalised older adults

Pedro Silva, Mário Espada, Mário Marques, Ana Pereira

O215 BMI and the perception of the importance given to sexuality in obese and overweight people

Ana Mª Pereira, Mª Veiga-Branco, Filomena Pereira, Maria Ribeiro

O216 Analysis and comparison of microbiological contaminations of two different composition pacifiers

Vera Lima, Ana I. Oliveira, Cláudia Pinho, Graça Cruz, Rita F. Oliveira, Luísa Barreiros, Fernando Moreira

O217 Experiences of couple relationships in the transition to retirement

Ana Camarneiro, Mª Helena Loureiro, Margarida Silva

O218 Preventive and corrective treatment of drug-induced calcium deficiency: an analysis in a community pharmacy setting

Catarina Duarte, Ângelo Jesus, Agostinho Cruz

O219 Profile of mood states in physically active elderly subjects: Is there a relation with health perception?

Maria Mota, Sandra Novais, Paulo Nogueira, Ana Pereira, Lara Carneiro, Paulo V. João

O220 (Un)Safety behaviour at work: the role of education towards a health and safety culture

Teresa Maneca Lima

O221 Analysis of the entrepreneurial profile of students attending higher education in Portugal: the Carland Entrepreneurship Index application

Anabela Salgueiro-Oliveira, Marina Vaquinhas, Pedro Parreira, Rosa Melo, João Graveto, Amélia Castilho, José H. Gomes

O222 Evaluation of welfare and quality of life of pregnant working women regarding the age of the pregnant

María S. Medina, Valeriana G. Blanco

O223 Psychological wellbeing protection among unemployed and temporary workers: Uncovering effective community-based interventions with a Delphi panel

Osvaldo Santos, Elisa Lopes, Ana Virgolino, Alexandra Dinis, Sara Ambrósio, Inês Almeida, Tatiana Marques, Mª João Heitor

O224 Chilean population norms derived from the Health-related quality of life SF-6D

Miguel A. Garcia-Gordillo, Daniel Collado-Mateo, Pedro R. Olivares, José A. Parraça, José A. Sala

O225 Motivation of college students toward Entrepreneurship: The influence of social and economic instability

Amélia Castilho, João Graveto, Pedro Parreira, Anabela Oliveira, José H. Gomes, Rosa Melo, Marina Vaquinhas

O226 Use of aromatic and medicinal plants, drugs and herbal products in Bragança city

Mónia Cheio, Agostinho Cruz, Olívia R. Pereira

O227 Edible flowers as new novel foods concept for health promotion

Sara Pinto, Adriana Oliveira, M. Conceição Manso, Carla Sousa, Ana F. Vinha

O228 The influence of leisure activities on the health and welfare of older people living in nursing homes

Mª Manuela Machado, Margarida Vieira

O229 Risk of falling, fear of falling and functionality in community-dwelling older adults

Beatriz Fernandes, Teresa Tomás, Diogo Quirino

O230 Musculoskeletal pain and postural habits in children and teenage students

Gustavo Desouzart, Rui Matos, Magali Bordini, Pedro Mouroço

O231 What's different in Southern Europe? The question of citizens’ participation in health systems

Ana R. Matos, Mauro Serapioni

O232 Occupational stress in Portuguese police officers

Teresa Guimarães, Virgínia Fonseca, André Costa, João Ribeiro, João Lobato

O233 Is occupational therapy culturally relevant to promote mental health in Burkina Faso?

Inmaculada Z. Martin, Anita Björklund

P105 Pay-for-performance satisfaction and quality in primary care

Aida I. Tavares, Pedro Ferreira, Rui Passadouro

P106 Economic development through life expectancy lenses

Sónia Morgado

P107 What is the effectiveness of exercise on smoking cessation to prevent clinical complications of smoking?

Nuno Tavares, João Valente, Anabela C. Martins

P108 A systematic review of the effects of yoga on mental health

Patrícia Araújo, Rosina Fernandes, Francisco Mendes, Cátia Magalhães, Emília Martins

P109 Healthy lifestyle: comparison between higher education students that lived until adult age in rural and urban environment

Pedro Mendes, Rui Paulo, António Faustino, Helena Mesquita, Samuel Honório, Marco Batista

P110 Evaluation of the Mobile Emergency Care Service (SAMU) in Brazil

Josimari T. Lacerda, Angela B. Ortiga, Mª Cristina Calvo, Sônia Natal

P111 Bioactive compounds - antioxidant activity of tropical fruits

Marta Pereira

P112 Use of non-pharmacological methods to relieve pain in labour

Manuela Ferreira, Ana R. Prata, Paula Nelas, João Duarte

P113 Mechanical safety of pacifiers sold in Portuguese pharmacies and childcare stores

Juliana Carneiro, Ana I. Oliveira, Cláudia Pinho, Cristina Couto, Rita F. Oliveira, Fernando Moreira

P114 The importance of prenatal consultation: Information to pregnant women given on a unit of primary care

Ana S. Maia, Michelle T. Oliveira, Anderson R. Sousa, Paulo P. Ferreira, Géssica M. Souza, Lívia F. Almada, Milena A. Conceição, Eujcely C. Santiago

P115 Influence of different backpack loading conditions on neck and lumbar muscles activity of elementary school children

Sandra Rodrigues, Gabriela Domingues, Irina Ferreira, Luís Faria, Adérito Seixas

P116 Efficacy and safety of dry extract Hedera helix in the treatment of productive cough

Ana R. Costa, Ângelo Jesus, Américo Cardoso, Alexandra Meireles, Armanda Colaço, Agostinho Cruz

P117 A portrait of the evaluation processes of education groups in primary health care

Viviane L. Vieira, Kellem R. Vincha, Ana Mª Cervato-Mancuso

P118 Benefits of vitamins C and E in sensorineural hearing loss: a review

Melissa Faria, Cláudia Reis

P119 BODY SNAPSHOT – a web-integrated anthropometric evaluation system

Marco P. Cova, Rita T. Ascenso, Henrique A. Almeida, Eunice G. Oliveira

P120 Anthropometric evaluation and variation during pregnancy

Miguel Santana, Rafael Pereira, Eunice G. Oliveira, Henrique A. Almeida, Rita T. Ascenso

P121 Knowledge of college students on the amendments of their eating habits and physical activity index in the transition to higher education

Rita Jesus, Rodrigo Tapadas, Carolina Tim-Tim, Catarina Cezanne, Matilde Lagoa, Sara S. Dias, Jorge Torgal

P122 Muscular activity of a rally race car driver

João Lopes, Henrique Almeida, Sandra Amado, Luís Carrão

O234 Literacy and results in health

Madalena Cunha, Luís Saboga-Nunes, Carlos Albuquerque, Olivério Ribeiro

O235 Literacy promotion and empowerment of type 2 diabetics elderly in four family health units of the group of health centers of Dão Lafões

Suzete Oliveira, Mª Carminda Morais

O236 Mediterranean diet, health and life quality among Portuguese children

Emília Martins, Francisco Mendes, Rosina Fernandes, Cátia Magalhães, Patrícia Araújo

O237 Health literacy, from data to action - translation, validation and application of the European Health Literacy Survey in Portugal (HLS-EU-PT)

Ana R. Pedro, Odete Amaral, Ana Escoval

O238 Oral health literacy evaluation in a Portuguese military population

Victor Assunção, Henrique Luís, Luís Luís

O239 Preferences to Internet-based cognitive behavioural therapy – do attachment orientations matter?

Jennifer Apolinário-Hagen, Viktor Vehreschild

O240 A comparative transnational study in health literacy between Austria and Portugal

Ulrike Fotschl, Gerald Lirk, Anabela C. Martins, Isabel Andrade, Fernando Mendes

O241 Health literacy and social behaviours: relationship with sexually transmitted diseases?

Verónica Mendonça, Sandra Antunes, Isabel Andrade, Nádia Osório, Ana Valado, Armando Caseiro, António Gabriel, Anabela C. Martins, Fernando Mendes

O242 Parenting styles and attachment to parents: what relationships?

Paula A. Silva, Lisete M. Mónico, Pedro M. Parreira, Carla Carvalho

O243 Work-life balance in health professionals and professors: comparative study of workers with shift work and fixed schedule

Carla Carvalho, Pedro M. Parreira, Lisete M. Mónico, Joana Ruivo

O244 Technology literacy in self-management of diabetes

Vânia Silva, Paulino Sousa, José M. Padilha

O245 Satisfaction with therapeutic education and its relationship with clinical variables in children with type 1 diabetes

Vera Ferraz, Graça Aparício, João Duarte

O246 Nutrition-related knowledge in middle-age and older patients with type 2 diabetes

Carlos Vasconcelos, António Almeida, Joel Neves, Telma Correia, Helena Amorim, Romeu Mendes

O247 Validating the HLS-EU-(PT) questionnaire to measure health literacy in adolescents (CrAdLiSa project: HLS-EU-PT)

Luís Saboga-Nunes, Madalena Cunha, Carlos Albuquerque

O248 Health education in people with coronary heart disease: Experience of the cardiology department of a hospital on the outskirts of Lisbon

Elsa S. Pereira, Leonino S. Santos, Ana S. Reis, Helena R. Silva, João Rombo, Jorge C. Fernandes, Patrícia Fernandes

O249 Information and training needs of informal caregivers of individuals with stroke sequelae: a qualitative survey

Jaime Ribeiro, Catarina Mangas, Ana Freire

O250 Prevention of psychoactive substances consumption in students from 6th grade of Albergaria-a-Velha´s School Group

Sara Silva, Irene Francisco, Ana Oliveira

O251 Promoting healthy sexuality: shared responsibility for family, youth and educators

Helena Catarino, Mª Anjos Dixe, Mª Clarisse Louro

O252 Sexual risk behaviour in adolescents and young people

Saudade Lopes, Anjos Dixe

O253 Knowledge of school staff on type 1 diabetes

Mª Anjos Dixe, Eva Menino, Helena Catarino, Fátima Soares, Ana P. Oliveira, Sara Gordo, Teresa Kraus

O254 Sexual health in adolescents: the impact of information search in literacy

Catarina Tomás, Paulo Queirós, Teresa Rodrigues

P123 Improving basic life support skills in adolescents through a training programme

Pedro Sousa, João G. Frade, Catarina Lobão

P124 Difficulties in sexual education reported by basic education teachers in the city of Foz do Iguaçu - Brazil

Cynthia B. Moura, Laysa C. Dreyer, Vanize Meneghetti, Priscila P. Cabral

P125 Breast cancer survivors: subjects and resources for information. A qualitative systematic review

Francisca Pinto, Paulino Sousa, Mª Raquel Esteves

P126 Relationship between health literacy and prevalence of STI in Biomedical Laboratory Science students

Sofia Galvão, Ite Tytgat, Isabel Andrade, Nádia Osório, Ana Valado, Armando Caseiro, António Gabriel, Anabela C. Martins, Fernando Mendes

P127 Health literacy, risk behaviours and sexually transmitted diseases among blood donors

Mónica Casas-Novas, Helena Bernardo, Isabel Andrade, Gracinda Sousa, Ana P. Sousa, Clara Rocha, Pedro Belo, Nádia Osório, Ana Valado, Armando Caseiro, António Gabriel, Anabela C. Martins, Fernando Mendes

P128 Promoting literacy in pregnancy health-care

Fátima Martins, Montserrat Pulido-Fuentes

P129 The lifestyles of the operating assistants of education

Isabel Barroso, Gil Cabral, M. João Monteiro, Conceição Rainho

P130 Experiences of service-learning health and the literary art: reflections about the health education

Alessandro Prado, Yara M. Carvalho

P131 Life long swimming – a European Erasmus + project

Maria Campos, Liliana Moreira, José Ferreira, Ana Teixeira, Luís Rama

Activity/inactivity circadian rhythm shows high similarities between young obesity-induced rats and old rats

The objective of the present study was to compare differences between elderly rats and young obesity-induced rats in their activity/inactivity circadian rhythm. The investigation was motivated by the differences reported previously for the circadian rhythms of both obese and elderly humans (and other animals), and those of healthy, young or mature individuals. Three groups of rats were formed: a young control group which was fed a standard chow for rodents; a young obesity-induced group which was fed a high-fat diet for four months; and an elderly control group with rats aged 2.5 years that was fed a standard chow for rodents. Activity/inactivity data were registered through actimetry using infrared actimeter systems in each cage to detect activity. Data were logged on a computer and chronobiological analysis were performed. The results showed diurnal activity (sleep time), nocturnal activity (awake time), amplitude, acrophase, and interdaily stability to be similar between the young obesity-induced group and the elderly control group, but different in the young control group. We have concluded that obesity leads to a chronodisruption status in the body similar to the circadian rhythm degradation observed in the elderly.

Melatonin sensitizes human cervical cancer HeLa cells to cisplatin-induced cytotoxicity and apoptosis: effects on oxidative stress and DNA fragmentation

Melatonin has antitumor activity via several mechanisms including its antiproliferative and pro-apoptotic effects as well as its potent antioxidant actions, although recent evidence has indicated that melatonin may perform pro-oxidant actions in tumor cells. Therefore, melatonin may be useful in the treatment of tumors in association with chemotherapy drugs. This study was intended to evaluate the in vitro effect of melatonin on the cytotoxic and pro-apoptotic actions of various chemotherapeutic agents in cervical cancer HeLa cells. Herein, we found that both melatonin and three of the chemotherapeutic drugs tested, namely cisplatin (CIS), 5-fluorouracil (5-FU), and doxorubicin, induced a decrease in HeLa cell viability. Furthermore, melatonin significantly increased the cytotoxic effect of such chemotherapeutic agents. Consistently, costimulation of HeLa cells with any chemotherapeutic agent in the presence of melatonin further increased caspase-3 activation, particularly in CIS- and 5-FU-challenged cells. Likewise, concomitant treatments with melatonin and CIS significantly enhanced the ratio of cells entering mitochondrial apoptosis due to reactive oxygen species (ROS) overproduction, substantially augmented the population of apoptotic cells, and markedly enlarged DNA fragmentation compared to the treatments with CIS alone. Nonetheless, melatonin only displayed moderate chemosensitizing effects in 5-FU-stimulated HeLa cells, as suggested by slight increments in the percentage of cells stimulated for ROS production and in the proportion of early apoptotic cells compared to the treatments with 5-FU alone. In summary, our findings provided evidence that in vitro melatonin strongly enhances CIS-induced cytotoxicity and apoptosis in HeLa cells and, hence, the indoleamine could be potentially applied to cervical cancer treatment as a powerful synergistic agent.

Effect of non-alcoholic beer on Subjective Sleep Quality in a university stressed population

Sleep deprivation affects the homeostasis of the physiological functions in the human organism. Beer is the only beverage that contains hops, a plant which has a sedative effect. Our objective is to determine the improvement of subjective sleep quality using the Pittsburgh Sleep Quality Index (PSQI). The sample was conducted among a population of 30 university students. The study took place during a period of 3 weeks, the first 7 days were used for the Control, and during the following 14 days the students ingested beer (were asked to drink non-alcoholic beer) while having dinner. The results revealed that Subjective Sleep Quality improved in the case of those students who drank one beer during dinner compared to the Control, this is corroborated by the fact that Sleep Latency decreased (p < 0.05) compared to their Control. The overall rating Global Score of Quality of Sleep also improved significantly (p < 0.05). These results confirm that the consumption of non-alcoholic beer at dinner time helps to improve the quality of sleep at night.

Exogenous melatonin supplementation prevents oxidative stress-evoked DNA damage in human spermatozoa

Reactive oxygen species (ROS) are essential for sperm physiological functions such as capacitation, hyperactivation, and acrosome reaction, on the one hand, and for stimulating the apoptotic processes involved in the regulation of spermatogenesis, on the other hand. However, the imbalance between production and removal of ROS leads to oxidative stress, which is referred to as one of the main factors involved in male infertility. The pineal hormone melatonin, given its low toxicity and well-known antioxidant capacity, could be an excellent candidate to improve sperm quality. For this reason, the objective of the present work was to analyze whether long-term supplementation with melatonin to infertile men affects human sperm quality and the quality of the embryos retrieved from their couples. Our findings showed that the daily supplementation of 6 mg melatonin, as early as after 45 days of treatment, produced an increase in melatonin endogenous levels, indirectly measured as urinary 6-sulfatoxymelatonin (aMT6-s), an enhancement of both urinary and seminal total antioxidant capacity, and a consequent reduction in oxidative damage caused in sperm DNA. Moreover, couples whose men were given melatonin showed a statistically significant increase in the percentage of grade A (embryo with blastomeres of equal size; no cytoplasmic fragmentation), B (embryo with blastomeres of equal size; minor cytoplasmic fragmentation), and C (embryo with blastomeres of distinctly unequal size; significant cytoplasmic fragmentation) embryos at the expense of grade D (embryo with blastomeres of equal or unequal size; severe or complete fragmentation.) embryos which were clearly reduced. In summary, melatonin supplementation improves human sperm quality, which is essential to achieve successful natural and/or assisted reproduction outcome.

Anti-inflammatory effects of melatonin in a rat model of caerulein-induced acute pancreatitis

The purpose of our study was to evaluate the protective effect of melatonin in a rat model of caerulein-induced acute pancreatitis. For the induction of experimental acute pancreatitis, four subcutaneous injections of caerulein (20 mgkg–1 body weight) were given to Wistar rats at 2-h intervals. Melatonin was injected intraperitoneally (25 mg kg–1 body weight) 30 min before each caerulein injection. After 12 h, rats were sacrificed by decapitation. Blood and pancreas samples were collected and processed for serological and histopathological studies,respectively. Lipase, a-amylase, corticosterone, total antioxidant power and cytokines interleukin (IL)-1b, IL-4 and tumour necrosis factor(TNF)-a were determined using commercial kits. ANOVA and Tukey tests (P<0.05) were performed for the statistical analysis of the results.Results showed that the administration of melatonin reduced histological damage induced by caerulein treatment as well as the hyperamylasemia and hyperlipidemia. Corticosterone and antioxidant total power were also reverted to basal activities. Furthermore, melatonin pre-treatment reduced pro-inflammatory cytokines IL-1b and TNF-a and increased the serum levels of anti-inflammatory cytokine IL-4. In conclusion,the findings suggest that the protective effect of melatonin in caerulein-induced acute pancreatitis is mediated by the anti-inflammatory ability of this indolamine. Thus, melatonin may have a protective effect against acute pancreatitis.

TNFα-induced apoptosis in human myeloid cell lines HL-60 and K562 is dependent of intracellular ROS generation

The present study determines the role of reactive oxygen species (ROS) production and calcium signaling evoked by the tumor necrosis factor-alpha (TNFα) on apoptosis in the human leukemia HL-60 and K562 cell lines. The results show that treatment of both cell lines cells with 10 ng/mL TNFα resulted in a rise in the percentage of apoptotic cells after 6 h of treatment. It was also observed that the administration of 10 ng/mL TNFα increased intracellular ROS production, as well as a time-dependent increase in caspase-8, -3, and -9 activities. The present results also show that the pretreatment with well-known antioxidants such as trolox and N-acetyl cysteine partially reduced the caspase activation caused by the administration of TNFα. The findings suggest that TNFα-induced apoptosis is dependent on alterations in intracellular ROS generation in human leukemia HL-60 and K562 cells.

Chemopreventive effects of resveratrol in a rat model of cerulein-induced acute pancreatitis

In the past decades, a greater understanding of acute pancreatitis has led to improvement in mortality rates. Nevertheless, this disease continues to be a health care system problem due to its economical costs. Future strategies such as antioxidant supplementation could be very promising, regarding to beginning and progression of the disease. For this reason, this study was aimed at assessing the effect of exogenous administration of resveratrol during the induction process of acute pancreatitis caused by the cholecystokinin analog cerulein in rats. Resveratrol pretreatment reduced histological damage induced by cerulein treatment, as well as hyperamylasemia and hyperlipidemia. Altered levels of corticosterone, total antioxidant status, and glutathione peroxidase were significantly reverted to control levels by the administration of resveratrol. Lipid peroxidation was also counteracted; nevertheless, superoxide dismutase enzyme was overexpressed due to resveratrol pretreatment. Related to immune response, resveratrol pretreatment reduced pro-inflammatory cytokine IL-1β levels and increased anti-inflammatory cytokine IL-10 levels. In addition, pretreatment with resveratrol in cerulein-induced pancreatitis rats was able to reverse, at least partially, the abnormal calcium signal induced by treatment with cerulein. In conclusion, this study confirms antioxidant and immunomodulatory properties of resveratrol as chemopreventive in cerulein-induced acute pancreatitis.

Tempranillo-derived grape seed extract induces apoptotic cell death and cell growth arrest in human promyelocytic leukemia HL-60 cells

Although grape seed extract (GSE) has proven to be effective against various cancers, few studies have investigated the effects of GSE on human leukemia. In this study, we analysed the mechanisms involved in the apoptotic effects induced by GSE on human promyelocytic leukemia HL-60 cells. Thus, GSE treatment succeeded in activating caspase-3 (P < 0.05), the activation being dose-dependent and time-dependent. Activation of caspase-3 induced by GSE was accompanied by mitochondrial membrane depolarization (P < 0.05). Moreover, disruption of mitochondrial integrity caused by GSE treatment subsequently led to activation of caspase-9 (P < 0.05), and also produced a slight increase in ROS levels (P < 0.05). Cytotoxic effects elicited by GSE treatment ultimately resulted in extensive S-phase arrest (P < 0.05) and a substantial increase in the intrinsic rate of apoptosis (P < 0.05). Our findings suggest that the GSE induces apoptotic cell death and cell growth inhibition in human leukemic HL-60 cells, which seems to be dependent on mitochondrial damage. Therefore, the GSE obtained from Tempranillo cultivars could be an effective approach to restrain uncontrolled cell proliferation and survival in leukemia cells.

Tryptophan-enriched cereal intake improves nocturnal sleep, melatonin, serotonin, and total antioxidant capacity levels and mood in elderly humans

Melatonin and serotonin rhythms, which exhibit a close association with the endogenous circadian component of sleep, are attenuated with increasing age. This decrease seems to be linked to sleep alterations in the elderly. Chrononutrition is a field of chronobiology that establishes the principle of consuming foodstuffs at times of the day when they are more useful for health, improving, therefore, biorhythms and physical performance. Our aim was to analyze whether the consumption of cereals enriched with tryptophan, the precursor of both serotonin and melatonin, may help in the reconsolidation of the sleep/wake cycle and counteract depression and anxiety in 35 middle-aged/elderly (aged 55-75 year) volunteers in a simple blind assay. Data were collected for 3 weeks according to the following schedule: The control week participants consumed standard cereals (22.5 mg tryptophan in 30 g cereals per dose) at breakfast and dinner; for the treatment week, cereals enriched with a higher dose of tryptophan (60 mg tryptophan in 30 g cereals per dose) were eaten at both breakfast and dinner; the posttreatment week volunteers consumed their usual diet. Each participant wore a wrist actimeter that logged activity during the whole experiment. Urine was collected to analyze melatonin and serotonin urinary metabolites and to measure total antioxidant capacity. The consumption of cereals containing the higher dose in tryptophan increased sleep efficiency, actual sleep time, immobile time, and decreased total nocturnal activity, sleep fragmentation index, and sleep latency. Urinary 6-sulfatoxymelatonin, 5-hydroxyindoleacetic acid levels, and urinary total antioxidant capacity also increased respectively after tryptophan-enriched cereal ingestion as well as improving anxiety and depression symptoms. Cereals enriched with tryptophan may be useful as a chrononutrition tool for alterations in the sleep/wake cycle due to age.

Chrononutrition against oxidative stress in aging

Free radicals and oxidative stress have been recognized as important factors in the biology of aging and in many age-associated degenerative diseases. Antioxidant systems deteriorate during aging. It is, thus, considered that one way to reduce the rate of aging and the risk of chronic disease is to avoid the formation of free radicals and reduce oxidative stress by strengthening antioxidant defences. Phytochemicals present in fruits, vegetables, grains, and other foodstuffs have been linked to reducing the risk of major oxidative stress-induced diseases. Some dietary components of foods possess biological activities which influence circadian rhythms in humans. Chrononutrition studies have shown that not only the content of food, but also the time of ingestion contributes to the natural functioning of the circadian system. Dietary interventions with antioxidant-enriched foods taking into account the principles of chrononutrition are of particular interest for the elderly since they may help amplify the already powerful benefits of phytochemicals as natural instruments with which to prevent or delay the onset of common age-related diseases.

The inhibition of TNF-α-induced leucocyte apoptosis by melatonin involves membrane receptor MT1/MT2 interaction

The pro-apoptotic signalling cascades induced by tumour necrosis factor-alpha (TNF-α) have been intensively studied in multiple cellular systems. So far, it is known that TNF-α can simultaneously activate survival and apoptotic cell death responses. The balance between these signals determines the ultimate response of the cell to TNF-α. Moreover, emerging evidence suggests that melatonin may be involved in the protection of different cell types against apoptosis. Thus, the objective of this study was to evaluate the effect of melatonin on TNF-α-induced apoptosis in human leucocytes. Cells were treated with TNF-α alone or in the presence of cycloheximide (CHX), which promotes caspase-8 activation by eliminating the endogenous caspase-8 inhibitor, c-FLIP. Treatment with TNF-α/CHX led to apoptotic cell death, as ascertained by annexin V/propidium iodide (PI) staining. Likewise, in the presence of CHX, TNF-α stimulation produced cFLIP down-regulation and subsequent caspase-8 activation, thus directly triggering caspase-3 activation and causing Bid truncation and subsequent caspase-9 activation. Conversely, pre-incubation of cells with melatonin inhibited TNF-α-/CHX-evoked leucocyte apoptosis. Similarly, pretreatment of leucocytes with melatonin increased cFLIP protein levels, thereby preventing TNF-α-/CHX-mediated caspase processing. Blockade of melatonin membrane receptor MT1/MT2 or extracellular signal-regulated kinase (ERK) pathway with luzindole or PD98059, respectively, abolished the inhibitory effects of melatonin on leucocyte apoptosis evoked by TNF-α/CHX. In conclusion, the model proposed by these findings is that the MT1/MT2 receptors, which are under the positive control of melatonin, trigger an ERK-dependent signalling cascade that interferes with the anti-apoptotic protein cFLIP modulating the cell life/death balance of human leucocytes.

A Jerte valley cherry product provides beneficial effects on sleep quality. Influence on aging

OBJECTIVE

In the present work, we evaluated the effect of the intake of a Jerte Valley cherry-based product (JVCP), compared to a placebo product, on sleep quality, urinary 6-sulfatoxymelatonin (aMT6-s) levels and the serum concentration of interleukin-1β (IL-1β), tumor necrosis factor α (TNF-α) and interleukin-8 (IL-8).

DESIGN

This was a blind, placebo-controlled, randomized, crossover study.

SETTING

University of Extremadura (Spain).

PARTICIPANTS

Ten young (20-30 years old), ten middle-aged (35-55 years old), and ten elderly (65-85 years old) participants.

INTERVENTION

A placebo (Kool-Aid®) or JVCP (patent no. ES 2342141 B1) were consumed twice a day, as lunch and dinner desserts.

MEASUREMENTS

Actigraphic monitoring was used to record and display the temporal patterns of the individuals' activity and rest. Urinary aMT6-s and serum cytokines (IL-1β, TNF-α and IL-8) were also determined.

RESULTS

The consumption of the JVCP improved the nocturnal rest, measured by sleep efficiency, number of awakenings, total nocturnal activity, sleep latency, assumed sleep, actual sleep time and immobility. Moreover, it was detected an increase in both the levels of aMT6-s found in first-void morning urine and the concentrations of serum pro-somnogenic cytokines obtained from samples collected at the acrophase of the melatonin rhythm (1.00 am) in all experimental age groups after the JVCP consumption. Generally, better results were obtained with advancing age.

CONCLUSION

The ingestion of the JVCP may contribute to establish a high-quality sleep and be used as a potential nutraceutical tool to prevent sleep disorders with the advance of age.

[Contribution to post-caesarean analgesia of ultrasound-guided transversus abdominis plane block]

OBJECTIVE

The aim of this study was to evaluate the contribution made by ultrasound-guided transversus abdominis plane block (TAP) to the quality of the analgesia with intrathecal opioids obtained in patients undergoing elective caesarean delivery.

MATERIAL AND METHODS

A prospective, randomized study in patients submitted to elective caesarean section with spinal anaesthesia with 0.5% hyperbaric bupivacaine. The patients were randomized into 3 groups according to the added complementary drug for analgesia: group A morphine 0.1mg; group B fentanyl 10 μg; group C 10 μg fentanyl+bilateral TAP block. The TAP block with 20 ml of 0.5% levobupivacaine on each side, after surgery. Groups A and B, were injected with 20 ml of saline. Postoperative analgesia was performed with morphine bolus through a system of patient-controlled analgesia (PCA). We studied the pain on a visual analogue scale at 12 and 24h at rest and movement, the time elapsed to require the first bolus, and morphine bolus in 24h. Secondary effects such as nausea, vomiting, pruritus, and drowsiness, were also evaluated. The level of patient satisfaction was also recorded.

RESULTS

A total of 90 patients were included. At rest the 12/24h VAS score was: group A, at 12h 2.1 ± 1.2, at 24h 4.7 ± 1.6; group B at 12h 4.3 ± 2.9, at 24h 4.8 ± 2; group C at 12h 1.9 ± 1.09, at 24h 2.3 ± 1.2 (P<.05). Walking improved analgesia more in group C (P ≤.02). The time of asking for the first bolus was lower in group B: group A 9.3 ± 4.9h (P=.02 compared to group C), in group B 2 ± 1.8h (P<.001 compared to group C) and group C 13.2 ± 2.1h. The number of bolus in 24h in group B was 38 ± 5, in group A 10 ± 2 (P<.05), group C 5 ± 2 (P<.001). Delayed nausea was increased in group B (36.6%) and pruritus was greater in group A (36.6%).

CONCLUSIONS

Ultrasound (US)-guided TAP block improves spinal opioid analgesia, with a decrease in VAS scores in the first 24h, and reduces opioid requirement and secondary effects after caesarean delivery.

Melatonin potentiates chemotherapy-induced cytotoxicity and apoptosis in rat pancreatic tumor cells

Melatonin has antitumor activity via several mechanisms including its antiproliferative and proapoptotic effects in addition to its potent antioxidant action. Thus, melatonin has proven useful in the treatment of tumors in association with chemotherapeutic drugs. This study was performed to evaluate the effect of melatonin on the cytotoxicity and apoptosis induced by three different chemotherapeutic agents, namely 5-fluorouracil (5-FU), cisplatin, and doxorubicin in the rat pancreatic tumor cell line AR42J. We found that both melatonin and the three chemotherapeutic drugs induce a time-dependent decrease in AR42J cell viability, reaching the highest cytotoxic effect after 48 hr of incubation. Furthermore, melatonin significantly augmented the cytotoxicity of the chemotherapeutic agents. Consistently, cotreatment of AR42J cells with each of the chemotherapeutic agents in the presence of melatonin increased the population of apoptotic cells, elevated mitochondrial membrane depolarization, and augmented intracellular reactive oxygen species (ROS) production compared to treatment with each chemotherapeutic agent alone. These results provide evidence that in vitro melatonin enhances chemotherapy-induced cytotoxicity and apoptosis in rat pancreatic tumor AR42J cells and, therefore, melatonin may be potentially applied to pancreatic tumor treatment as a powerful synergistic agent in combination with chemotherapeutic drugs.

The sedative effect of non-alcoholic beer in healthy female nurses

INTRODUCTION

The hop (Humulus lupulus L.), a component of beer, is a sedative plant whose pharmacological activity is principally due to its bitter resins, in particular to the α-acid degradation product 2-methyl-3-buten-2-ol. The mechanism of action of hop resin consists of raising the levels of the neurotransmitter γ-aminobutyric acid (GABA), an inhibitory neurotransmitter acting in the central nervous system (CNS).

OBJECTIVES

To analyze the sedative effect of hops as a component of non-alcoholic beer on the sleep/wake rhythm in a work-stressed population.

METHODS

The experiment was conducted with healthy female nurses (n = 17) working rotating and/or night shifts. Overnight sleep and chronobiological parameters were assessed by actigraphy (Actiwatch®) after moderate ingestion of non-alcoholic beer containing hops (333 ml with 0.0% alcohol) with supper for 14 days (treatment). Data were obtained in comparison with her own control group without consumption of beer during supper.

RESULTS

Actigraphy results demonstrated improvement of night sleep quality as regards the most important parameters: Sleep Latency diminished (p≤0.05) in the Treatment group (12.01±1.19 min) when compared to the Control group (20.50±4.21 min), as also did Total Activity (p≤0.05; Treatment group = 5284.78±836.99 activity pulses vs Control = 7258.78±898.89 activity pulses). In addition, anxiety as indexed by the State-Trait Anxiety Inventory (STAI) decreased in the Treatment group (State Anxiety 18.09±3.8 vs Control 20.69±2.14).

CONCLUSION

The moderate consumption of non-alcoholic beer will favour night-time rest, due in particular to its hop components, in addition to its other confirmed benefits for the organism.

Assessment of the intake of tryptophan-enriched cereals in the elderly and its influence on the sleep-wake circadian rhythm

Sleep-wake circadian rhythm disturbances are a common problem associated to aging. Although this problem can be caused by several factors, low levels of the indol melatonin are related with these alterations. Our aim was to evaluate if the consumption of cereals enriched with tryptophan, the precursor of both serotonin and melatonin, can enhance sleep problems in elderly people. Participants (n=12; aged 55-67 yr) were selected from Elderly people University of The University of Extremadura. During all the assay participants wore a wrist actimeter and they filled every week an STAI anxiety test. Data were collected following this schedule: Control week: participants ingested a control cereal both at breakfast anddinner (22.5 mg tryptophan/ 30g product per dose); Treatment Week: volunteers consumed a tryptophan enriched cereal both at breakfast and dinner (60mg tryptophan/30g product per dose); Post-treatment week: participants ingested their habitual diet. We observed a decrease in sleep latency (p<0.01), wake bouts (p>0.05) and sleep fragmentation (p<0.001); on the other hand, an increase in actual sleep time (p<0.01), sleep efficiency (p<0.01) and immobile time (p<0.01) were detected. With respect to the anxiety test, there was an improvement in the state of anxiety. In conclusion, through a tryptophanenriched diet age related sleep problems can be improved.

A jerte valley cherry-based product as a supply of tryptophan

L-Tryptophan (tryptophan) is an essential amino acid in humans. It has important roles as a precursor of different bioactive compounds. Based on previous studies in which tryptophan has been shown to be present in fresh cherries, the aim of the present work was to analyze the tryptophan content of a Jerte Valley cherry-based product. A previously optimized method of analysis of tryptophan was used, ie, high-performance liquid chromatography with fluorescence detection (HPLC/FL). As expected, HPLC/FL technique permitted to detect and quantify the tryptophan content in a different matrix rather than fresh cherries. In fact, the Jerte Valley cherry-based product contained 69.54 ± 10.64 ppm of tryptophan, thereby showing that this product is a good source of tryptophan. In summary, it has been proven that the Jerte Valley cherry-based product is rich in tryptophan and may be indicated as a supply of this essential amino acid as well as having potential health benefits for conditions where tryptophan is necessary.

[Nitrogen and protein content analysis of human milk, diurnality vs nocturnality]

Breast milk is changing with the progression of lactation and during a 24-h period. To determine the effect of diurnality or nocturnality on total nitrogen and protein content of the breast milk. We collected human milk samples from health mothers living throughout Community of Extremadura (Spain) from January 2008 to December 2008 with less than two months of lactation. We divided the samples in three groups: calostral group (1-5 days postpartum), transitional group (6-15 days postpartum) and mature group (> 15 days postpartum). All samples were stored in a freezer at -80 ºC. We considered as day period between 08:00-20:00 h and night period 20:00-08:00 h. Analysis of the human milk samples was based on the Kjeldahl method. Protein contents were calculated from total nitrogen x 6,25. The statistical analysis of the data was descriptive (mean ± standard deviation) and inferential (T-Student test). No differences (P > 0,05) were found to exist among the contents of individual human milk samples. The mean contents of each component were as follows: Total nitrogen of calostral, transitional and mature group was 0,30 ± 0,06 g/dL (night period), 0,29 ± 0,05 g/dL (day period); 0,26 ± 0,04 g/dL (night period), 0,25 ± 0,04 g/dL (day period); 0,22 ± 0,05 g/dL (night period), 0,20 ± 0,04 g/dL (day period) respectively, in this mature group with a statistical variation (P < 0,05). Protein content of calostral, transitional and mature group was 1,88 ± 0,4 g/dL (night period), 1,81 ± 0,3 g/dL (day period); 1,62 ± 0,3 g/dL (night period), 1,59 ± 0,3 g/dL (day period); 1,35 ± 0,3 g/dL (night period), 1,26 ± 0,3 g/dL (day period) respectively, in this mature group with a statistical variation (P < 0,05). Although we observed differences in the nitrogen and protein content during the individual stages of lactation, it is just in the population of mature lactating women, where the components analyzed varied significantly between day and night.

Melatonin is able to delay endoplasmic reticulum stress-induced apoptosis in leukocytes from elderly humans

The mechanisms regulating neutrophil apoptosis are basically unaffected by the aging process. However, a significant impairment of cell survival occurs in elderly individuals following neutrophil challenge with pro-inflammatory stimuli, such as granulocyte-macrophage colony-stimulating factor (GM-CSF). The goal of the present study was to prove the effects of melatonin supplementation on apoptosis induced by calcium signaling in human leukocytes from elderly volunteers. Treatments with the specific inhibitor of cytosolic calcium re-uptake, thapsigargin, and/or the calcium mobilizing agonist, N-formyl-methionyl-leucyl-phenylalanine (fMLP), induced mitochondrial membrane depolarization, caspase activation, phosphatidylserine (PS) externalization, and DNA fragmentation in leukocytes from both young and elderly volunteers, although such effects were much more evident in aged leukocytes. Importantly, melatonin treatment substantially preserved mitochondrial membrane potential, reversed caspase activation, reduced PS exposure and forestalled DNA fragmentation in leukocytes from both age groups. In conclusion, melatonin is able to delay endoplasmic reticulum stress-induced apoptosis in aged leukocytes and may counteract, at the cellular level, age-related degenerative phenomena linked to oxidative stress.

Diets enriched with a Jerte Valley cherry-based nutraceutical product reinforce nocturnal behaviour in young and old animals of nocturnal (Rattus norvegicus) and diurnal (Streptopelia risoria) chronotypes

The decline in melatonin secretion with age seems to be one of the major reasons for increased sleep disruption in older animals. Previously, we showed that the administration with melatonin or its precursor, tryptophan, improved activity/rest rhythms in aged individuals. Here, it was evaluated the effect of a 10-day consumption of a Jerte Valley cherry-based nutraceutical product (patent no. ES2342141B1), which contains high levels of tryptophan, serotonin and melatonin, on the activity/rest rhythms of young and old rats (Rattus norvegicus) and ringdoves (Streptopelia risoria) as representatives of animals with nocturnal and diurnal habits, respectively, and its possible relationship with the serum levels of melatonin and glucose. Total diurnal and nocturnal activity pulses were logged at control, during, and up to 3 days after the treatment. Melatonin and glucose were measured with ELISA and testing kits respectively. In both young and old rats, the intake of the cherry nutraceutical decreased diurnal activity, whereas nocturnal activity increased. The opposite effect was observed for ringdoves. The treatment increased the circulating levels of melatonin in both species and restored the amplitude of the activity rhythm in the old animals to that of the non-treated young groups. The consumption of a Jerte Valley cherry-based nutraceutical product may help to counteract the impaired activity/rest rhythm found in aged animals.

Urinary 6-sulfatoxymelatonin and total antioxidant capacity increase after the intake of a grape juice cv. Tempranillo stabilized with HHP

Red grapes contain elevated amounts of antioxidant compounds (polyphenols) that may potentially prevent cell aging, cardiovascular disease and oxidation-related disorders. Since functional drinks are presently one of the most dynamic sectors of the market, the present work was aimed at evaluating the possible antioxidant effect of an experimental grape juice in terms of urinary 6-sulfatoxymelatonin (aMT6-s) and total antioxidant capacity in young (20 ± 10 yr-old), middle-aged (45 ± 10 yr-old) and elderly (75 ± 10 yr-old) individuals. Grapes (Vitis vinifera cv. Tempranillo) were de-stemmed, racked and pressed. The juice was subsequently stabilized by high hydrostatic pressure (HHP). Participants consumed 200 mL of grape juice twice a day (as the lunch and dinner desserts) for 5 days. First-void morning urines were collected before treatment (basal values), the day immediately after the last ingestion of juice (assay), and one day afterwards (post-assay). aMT6-s and total antioxidant capacity were quantified using commercial ELISA and colorimetric assay kits, respectively. The intake of grape juice cv. Tempranillo induced a significant increase of urinary aMT6-s and total antioxidant capacity in the three groups of age analyzed as compared to their corresponding basal and post-assay values. These functional/nutraceutical properties may be of interest for a prospective commercialization of the grape juice. The novel technology used for juice stabilization may be suitable for introducing into the market a product with high sensory and nutritional quality, as it has been shown in this study.

Melatonin modulates wireless (2.45 GHz)-induced oxidative injury through TRPM2 and voltage gated Ca(2+) channels in brain and dorsal root ganglion in rat

We aimed to investigate the protective effects of melatonin and 2.45 GHz electromagnetic radiation (EMR) on brain and dorsal root ganglion (DRG) neuron antioxidant redox system, Ca(2+) influx, cell viability and electroencephalography (EEG) records in the rat. Thirty two rats were equally divided into four different groups namely group A1: Cage control, group A2: Sham control, group B: 2.45 GHz EMR, group C: 2.45 GHz EMR+melatonin. Groups B and C were exposed to 2.45 GHz EMR during 60 min/day for 30 days. End of the experiments, EEG records and the brain cortex and DRG samples were taken. Lipid peroxidation (LP), cell viability and cytosolic Ca(2+) values in DRG neurons were higher in group B than in groups A1 and A2 although their concentrations were increased by melatonin, 2-aminoethyldiphenyl borinate (2-APB), diltiazem and verapamil supplementation. Spike numbers of EEG records in group C were lower than in group B. Brain cortex vitamin E concentration was higher in group C than in group B. In conclusion, Melatonin supplementation in DRG neurons and brain seems to have protective effects on the 2.45 GHz-induced increase Ca(2+) influx, EEG records and cell viability of the hormone through TRPM2 and voltage gated Ca(2+) channels.

Protective effect of melatonin against human leukocyte apoptosis induced by intracellular calcium overload: relation with its antioxidant actions

Apoptosis or programmed cell death plays a critical role in both inflammatory and immune responses. Recent evidence demonstrates that control of leukocyte apoptosis is one of the most striking immune system-related roles of melatonin. For this reason, this study evaluated the protective effects of melatonin on human leukocyte apoptosis induced by sustained cytosolic calcium increases. Such protective effects are likely mediated by melatonin's free-radical scavenging actions. Treatments with the specific inhibitor of cytosolic calcium re-uptake, thapsigargin (TG), and/or the calcium-mobilizing agonist, N-formyl-methionyl-leucyl-phenylalanine (FMLP), induced intracellular reactive oxygen species (ROS) production, caspase activation as well as DNA fragmentation in human leukocytes. Also, TG- and/or FMLP-induced apoptosis was dependent on both cytosolic calcium increases and calcium uptake into mitochondria, because when cells were preincubated with the cytosolic calcium chelator, dimethyl BAPTA, and the inhibitor of mitochondrial calcium uptake, Ru360, TG- and FMLP-induced apoptosis was largely inhibited. Importantly, melatonin treatment substantially prevented intracellular ROS production, reversed caspase activation, and forestalled DNA fragmentation induced by TG and FMLP. Similar results were obtained by preincubating the cells with another well-known antioxidant, i.e., N-acetyl-L-cysteine. To sum up, depletion of intracellular calcium stores induced by TG and/or FMLP triggers different apoptotic events in human leukocytes that are dependent on calcium signaling. The protective effects resulting from melatonin administration on leukocyte apoptosis likely depend on melatonin's antioxidant action because we proved that this protection is melatonin receptor independent. These findings help to understand how melatonin controls apoptosis in cells of immune/inflammatory relevance.

Role of melatonin on diabetes-related metabolic disorders

Melatonin is a circulating hormone that is mainly released from the pineal gland. It is best known as a regulator of seasonal and circadian rhythms, its levels being high during the night and low during the day. Interestingly, insulin levels are also adapted to day/night changes through melatonin-dependent synchronization. This regulation may be explained by the inhibiting action of melatonin on insulin release, which is transmitted through both the pertussis-toxin-sensitive membrane receptors MT₁ and MT₂ and the second messengers 3’,5’-cyclic adenosine monophosphate, 3’,5’-cyclic guanosine monophosphate and inositol 1,4,5-trisphosphate. Melatonin may influence diabetes and associated metabolic disturbances not only by regulating insulin secretion, but also by providing protection against reactive oxygen species, since pancreatic β-cells are very susceptible to oxidative stress because they possess only low-antioxidative capacity. On the other hand, in several genetic association studies, single nucleotide polymorphysms of the human MT₂ receptor have been described as being causally linked to an elevated risk of developing type 2 diabetes. This suggests that these individuals may be more sensitive to the actions of melatonin, thereby leading to impaired insulin secretion. Therefore, blocking the melatonin-induced inhibition of insulin secretion may be a novel therapeutic avenue for type 2 diabetes.

Melatonin protects human spermatozoa from apoptosis via melatonin receptor- and extracellular signal-regulated kinase-mediated pathways

OBJECTIVE

To evaluate whether the protective effect of melatonin on H2O2-induced caspase activation and DNA fragmentation depends on the interaction between melatonin and its surface receptors.

DESIGN

Laboratory study.

SETTING

Center for assisted human reproduction at a Spanish hospital.

PATIENT(S)

Twenty-one healthy donors.

INTERVENTION(S)

Human spermatozoa were treated with increasing concentrations of hydrogen peroxide (H2O2; 1 μM, 10 μM, 100 μM, 1 mM) and preincubated with 1 mM melatonin.

MAIN OUTCOMES MEASURE(S)

Activation of caspase-3 and -9 as well as DNA fragmentation were examined by fluorescence methods.

RESULT(S)

Our findings showed that H2O2 induced a significant increase in caspase-9 and caspase-3, which was dose independent. Conversely, pretreatment with melatonin reduced H2O2-mediated caspase activation in a dose-dependent way. Moreover, the antiapoptotic effects of melatonin in ejaculated human spermatozoa may involve membrane melatonin receptor MT1. In addition, we found that the survival-promoting pathway extracellular signal-regulated kinase (ERK) is likely to have a role in the protective actions of melatonin in ejaculated human spermatozoa. Finally, we confirmed these results further by demonstrating that melatonin prevention of H2O2-induced DNA fragmentation is dependent on both MT1 receptor and ERK signaling.

CONCLUSION(S)

These results indicate that the stimulation with melatonin triggers a set of events culminating in cell death prevention in ejaculated human spermatozoa.

High endogenous melatonin concentrations enhance sperm quality and short-term in vitro exposure to melatonin improves aspects of sperm motility

Although human seminal fluid contains melatonin and spermatozoa reportedly possess membrane melatonin receptors, there are no experimental studies that have ascertained the relationship between melatonin and male infertility. This study evaluated whether urinary 6-sulfatoxymelatonin and urinary total antioxidant capacity correlate with different seminal parameters including sperm concentration, motility and morphology. Also, the in vitro effects of melatonin on human sperm motility were investigated. Semen samples from 52 men who were counselled for infertility were obtained. Sperm concentration was determined using the haemocytometer method, motility kinematic parameters were assessed using a computer-aided semen analysis system, while morphology and vitality were evaluated after Diff-Quick and Eosin-Nigrosin vital staining, respectively. For the quantification of urinary 6-sulfatoxymelatonin, a commercial ELISA kit was used, and urinary total antioxidant capacity was evaluated by means of a colorimetric assay kit. For the in vitro effects of melatonin, samples were incubated for 30min in the presence or absence of 1mm melatonin. Both urinary 6-sulfatoxymelatonin and total antioxidant capacity levels positively correlated with sperm concentration, motility and morphology, as well as negatively correlated with the number of round cells. Additionally, 30-min exposure of sperm to 1mm melatonin improved the percentage of motile and progressively motile cells and decreased the number of static cells, thereby promoting the proportion of rapid cells. Therefore, melatonin improves semen quality, which is important because melatonin supplementation may be potentially used to obtain a successful assisted reproductive technique outcome.

Effects of lead spatial resolution on the spectrum of cardiac signals: a simulation study

Spectral analysis is widely applied to bioelectric cardiac signals for quantifying the spatiotemporal organization of cardiac tissue. Nevertheless, to date it is not well understood how lead characteristics affect the spectrum of recorded cardiac signals and, as a consequence, the interpretation of cardiac spectrum is still controversial. In this paper we use simulation methods to investigate the effects of lead spatial resolution on the spectrum of cardiac signals. We simulate three cardiac rhythms of different degrees of spatiotemporal organization in a square sample of cardiac tissue. Then, by using a lead field approach, we synthesize the signals recorded by four idealized leads of different spatial resolution. Finally, we estimate the spectrum of simulated cardiac signals. Our simulations indicate that lead spatial resolution affects cardiac spectrum, although the effects depend on the organization of the underlying rhythm. Specifically, our simulations show that for highly organized rhythms, the smaller the lead resolution region, the broader the distribution of power in frequency. Since lead resolution can affect significantly cardiac spectrum, we conclude that caution should be used when quantifying cardiac spatiotemporal organization based on the spectrum of cardiac signals.

The correlation between urinary 5-hydroxyindoleacetic acid and sperm quality in infertile men and rotating shift workers

BACKGROUND

Serotonin is a neurotransmitter that modulates a wide range of neuroendocrine functions. However, excessive circulating serotonin levels may induce harmful effects in the male reproductive system. The objective of this study was to evaluate whether the levels of urinary 5-hydroxyindoleacetic acid (5-HIIA), a major serotonin metabolite, correlate with different classical seminal parameters.

METHODS

Human ejaculates were obtained from 40 men attending infertility counselling and rotating shift workers by masturbation after 4-5 days of abstinence. Urinary 5- HIIA concentration was quantified by using a commercial ELISA kit. Forward motility was assessed by a computer-aided semen analysis (CASA) system. Sperm concentration was determined using the haemocytometer method. Sperm morphology was evaluated after Diff-Quik staining, while sperm vitality was estimated after Eosin-Nigrosin vital staining.

RESULTS

Our results show that urinary 5-HIIA levels obtained from a set of 20 volunteers negatively correlated with sperm concentration, forward motility, morphology normal range and sperm vitality. On the other hand, we checked the relationship between male infertility and urinary 5-HIIA levels in 20 night shift workers. Thus, urinary 5-HIIA levels obtained from 10 recently-proven fathers were significantly lower than those found in 10 infertile males. Additionally, samples from recent fathers exhibited higher sperm concentration, as well as better forward motility and normal morphology rate.

CONCLUSIONS

In the light of our findings, we concluded that high serotonin levels, indirectly measured as urinary 5-HIIA levels, appear to play a role as an infertility determinant in male subjects.

Jerte Valley cherry-enriched diets improve nocturnal rest and increase 6-sulfatoxymelatonin and total antioxidant capacity in the urine of middle-aged and elderly humans

Tryptophan, serotonin, and melatonin, present in Jerte Valley cherries, participate in sleep regulation and exhibit antioxidant properties. The effect of the intake of seven different Jerte Valley cherry cultivars on the sleep-wake cycle, 6-sulfatoxymelatonin levels, and urinary total antioxidant capacity in middle-aged and elderly participants was evaluated. Volunteers were subjected to actigraphic monitoring to record and display the temporal patterns of their nocturnal activity and rest. 6-sulfatoxymelatonin and total antioxidant capacity were quantified by enzyme-linked immunosorbent assay and colorimetric assay kits, respectively. The intake of each of the cherry cultivars produced beneficial effects on actual sleep time, total nocturnal activity, assumed sleep, and immobility. Also, there were significant increases in 6-sulfatoxymelatonin levels and total antioxidant capacity in urine after the intake of each cultivar. These findings suggested that the intake of Jerte Valley cherries exerted positive effect on sleep and may be seen as a potential nutraceutical tool to counteract oxidation.

Melatonin counteracts alterations in oxidative metabolism and cell viability induced by intracellular calcium overload in human leucocytes: changes with age

Ageing is associated with an increased production of free radicals and alterations in the mechanisms of adaptation to oxidative stress. In fact, the free radical theory of ageing proposes that deleterious actions of free radicals are responsible for the functional deterioration associated with ageing. Moreover, a close relationship exists between calcium homeostasis and oxidative stress. The current work was aimed at proving that intracellular calcium overload induced by N-formyl-methionyl-leucyl-phenylalanine (FMLP) and/or thapsigargin leads to oxidative stress. We additionally examined the effect of melatonin on the levels of reactive oxygen species (ROS) and cell viability in human leucocytes collected from young (20-30-year-old) and elderly (65-75-year-old) individuals under both basal and oxidative stress-induced conditions. Treatments with 10 nM FMLP and/or 1 microM thapsigargin induced a transient increase in cytosolic free-calcium concentration ([Ca(2 + )](c)) in human leucocytes due to calcium release from internal stores, and led in turn to oxidative stress, as assessed by intracellular ROS measurement. Non-treated leucocytes from aged individuals exhibited higher ROS levels and lower rates of cell survival when compared to leucocytes from young individuals. Similar results were obtained in FMLP and/or thapsigargin-treated leucocytes from elderly individuals when compared to those from the young individuals. Melatonin treatment significantly reduced both hydrogen peroxide (H(2)O(2)) and superoxide anion levels, likely due to its free-radical scavenging properties, and enhanced leucocyte viability in both age groups. Therefore, melatonin may be a useful tool for the treatment of disease states and processes where an excessive production of oxidative damage occurs.

Melatonin as a potential tool against oxidative damage and apoptosis in ejaculated human spermatozoa

It is assumed somatic cells can die in the apoptotic, the autophagic, or the necrotic way; however, the mechanisms of sperm death are not clear. Here, ejaculated human spermatozoa were evaluated for apoptosis and reactive oxygen species production in the absence or presence of melatonin, and we concluded that melatonin reverses sperm apoptosis due to its free radical scavenging actions.

Melatonin reduces apoptosis induced by calcium signaling in human leukocytes: Evidence for the involvement of mitochondria and Bax activation

We have evaluated the effect of melatonin on apoptosis evoked by increases in [Ca(2+)]( c ) in human leukocytes. Our results show that treatment of neutrophils with the calcium mobilizing agonist FMLP or the specific inhibitor of calcium reuptake thapsigargin induced a transient increase in [Ca(2+)]( c ). Our results also show that FMLP and thapsigargin increased caspase-9 and -3 activities and the active forms of both caspases. The effect of FMLP and thapsigargin on caspase activation was time-dependent. Similar results were obtained when lymphocytes were stimulated with thapsigargin. This stimulatory effect was accompanied by induction of mPTP, activation of the proapoptotic protein Bax and release of cytochrome c. However, when leukocytes were pretreated with melatonin, all of the apoptotic features indicated above were significantly reversed. Our results suggest that melatonin reduces caspase-9 and -3 activities induced by increases in [Ca(2+)]( c ) in human leukocytes, which are produced through the inhibition of both mPTP and Bax activation.