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  1. Article ; Online: A ripple effect? The impact of obesity on sperm quality and function.

    Alfaiate, Maria Inês / Tavares, Renata Santos / Ramalho-Santos, João

    Reproduction, fertility, and development

    2024  Volume 36

    Abstract: Infertility affects approximately 15% of couples trying to conceive. Male-related causes account for roughly 50% of cases, with obesity emerging as a possible significant factor. Obesity, defined as a body mass index of 30.0 or higher, has become a ... ...

    Abstract Infertility affects approximately 15% of couples trying to conceive. Male-related causes account for roughly 50% of cases, with obesity emerging as a possible significant factor. Obesity, defined as a body mass index of 30.0 or higher, has become a widespread epidemic associated with numerous health issues, including a decrease of fertility. This review discusses the relationship between obesity and male infertility, particularly focusing on sperm quality and function. An overview of the literature suggests that obesity may influence the male reproductive system via disruptions in hormonal profiles, oxidative stress, and inflammation, leading to changes in sperm parameters. Several studies have discussed if obesity causes a decrease in sperm concentration, motility, and normal morphology, so far without a consensus being reached. However, available evidence suggests an impairment of sperm function in obese men, due to an increase in DNA damage and oxidative stress, impaired mitochondrial function and acrosome reaction in response to progesterone. Finally, the relationship between obesity and assisted reproductive technologies outcomes remains debatable, with conflicting evidence regarding the influence on fertilisation, pregnancy, and live birth rates. Therefore, the actual impact of obesity on human spermatozoa still needs to be clarified, due to the multiple factors potentially in play.
    MeSH term(s) Pregnancy ; Female ; Male ; Humans ; Semen ; Sperm Motility ; Infertility, Male/genetics ; Obesity ; Spermatozoa
    Language English
    Publishing date 2024-04-08
    Publishing country Australia
    Document type Review ; Journal Article
    ZDB-ID 1019913-5
    ISSN 1448-5990 ; 1031-3613
    ISSN (online) 1448-5990
    ISSN 1031-3613
    DOI 10.1071/RD23215
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Fungi: friends or foes-an outreach science initiative for the collection of airborne fungal spores by high school students.

    Piontkivska, Daryna / Jorge, João M P / Neves, Rita / Crespo, Pedro / Ramalho, Renata / Silva Pereira, Cristina

    Journal of microbiology & biology education

    2024  , Page(s) e0019823

    Abstract: Fungi mostly reproduce through spores that are adapted for airborne dispersal; hence, fungal spores (and fungi) are found virtually everywhere. Fungi can be "friends or foes." Our friends include fungi used in the food and biotech industries, fungi that ... ...

    Abstract Fungi mostly reproduce through spores that are adapted for airborne dispersal; hence, fungal spores (and fungi) are found virtually everywhere. Fungi can be "friends or foes." Our friends include fungi used in the food and biotech industries, fungi that contribute to the cycling of carbon and nutrients, and those involved in the decontamination of polluted soils and/or water, to mention just a few examples. Many species, however, are foes-they are detrimental to plants, animals, and/or humans. Annually, >1.5 million people die due to invasive fungal infections. With the aim of enhancing microbiology literacy and the understanding of microbial concepts, we set up a project for the collection of airborne spores (the principal agent through which human airways are exposed to fungi). Students from five high schools in the Oeiras municipality partnered with us as citizen scientists; they carried out sampling by collecting fungal spores on adhesive stickers. The fungal spores collected by the students were subsequently processed in the schools and our research laboratory. Results obtained by the students themselves revealed a large variety of fungal species capable of growing in a rich medium at 30°C. In the research laboratory, using selective isolation conditions, 40 thermotolerant fungi were isolated, 32 of which were taxonomically identified as aspergilla, mostly from within the
    Language English
    Publishing date 2024-05-01
    Publishing country United States
    Document type Journal Article
    ISSN 1935-7877
    ISSN 1935-7877
    DOI 10.1128/jmbe.00198-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Clinical and sociodemographic factors associated with the quality of life of children and adolescents with type 1 diabetes.

    Ramalho, Elisabeth Luisa Rodrigues / Sparapani, Valéria de Cássia / Barber, Rebecca Ortiz La Banca / Oliveira, Renata Cardoso / Nascimento, Lucila Castanheira / Collet, Neusa

    Revista da Escola de Enfermagem da U S P

    2024  Volume 57, Page(s) e20230195

    Abstract: Objective: To analyze clinical and sociodemographic factors associated with the health-related quality of life of children and adolescents with type 1 Diabetes Mellitus.: Method: A quantitative, cross-sectional and analytical study, developed in a ... ...

    Abstract Objective: To analyze clinical and sociodemographic factors associated with the health-related quality of life of children and adolescents with type 1 Diabetes Mellitus.
    Method: A quantitative, cross-sectional and analytical study, developed in a municipality in northeastern Brazil, between March and September 2021, with 81 children/adolescents with type 1 Diabetes Mellitus and their guardians/caregivers. A questionnaire containing sociodemographic and clinical variables and two quality of life instruments were used. Descriptive and inferential analysis was carried out.
    Results: Adolescents whose parents had a family income greater than a minimum wage had a lower prevalence of impaired quality of life when compared to those with a lower income. Adolescents with time since diagnosis of less than four years had a satisfactory quality of life, and children aged 8 to 12 years who self-administered insulin had a lower prevalence of high quality of life compared to those who did not.
    Conclusion: Adolescents with a family income of less than a minimum wage, diagnosis time of more than four years and children aged 8-12 who self-administer insulin need greater professional support to have a better quality of life.
    MeSH term(s) Child ; Adolescent ; Humans ; Diabetes Mellitus, Type 1 ; Quality of Life ; Sociodemographic Factors ; Cross-Sectional Studies ; Insulin
    Chemical Substances Insulin
    Language Portuguese
    Publishing date 2024-01-19
    Publishing country Brazil
    Document type Journal Article
    ZDB-ID 2411320-7
    ISSN 1980-220X ; 1980-220X
    ISSN (online) 1980-220X
    ISSN 1980-220X
    DOI 10.1590/1980-220X-REEUSP-2023-0195en
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Lower calcium and iron intake in adolescent gymnasts: A case of concern for youth sports nutrition.

    Vicente, Filipa / Holanda, Marcela / Ramalho, Renata / Mendes, João / Marques-Vidal, Pedro / Pereira, Paula

    Nutrition (Burbank, Los Angeles County, Calif.)

    2023  Volume 110, Page(s) 112020

    Abstract: Objectives: Diet is important for the appropriate development and maturation of young amateur athletes. The aim of this study was to determine whether young gymnasts were consuming adequate amounts of nutrients, particularly calcium and iron.: Methods! ...

    Abstract Objectives: Diet is important for the appropriate development and maturation of young amateur athletes. The aim of this study was to determine whether young gymnasts were consuming adequate amounts of nutrients, particularly calcium and iron.
    Methods: This cross-sectional survey was conducted in Portugal's Almada and Lisbon regions in 2020. To determine if participants' diet was adequate, weight, height, and skinfold measurements were taken. Dietary consumption was examined using two 24-h recalls. We collected data from 66 participants (60% females, 12-18 y of age), of whom 82% had normal weight and 39% had ideal body fat.
    Results: The daily total energy intake (TEI) was1605 ± 601 kcal. Of the TEI, 19%, 31%, and 50% were comprised of protein, fat, and carbohydrates, respectively. The most often consumed protein sources were poultry and ultra-processed meat products (52% and 45%, respectively). The average daily consumption of calcium and iron was 626 ± 293 and 9 ± 3 mg, respectively. Only 2 of the 66 participants had calcium intake within recommended levels, and 1of 5 had iron intake within recommended levels, the percentage of which was lower in girls than boys (7.5% versus 38.5%, P < 0.05).
    Conclusions: Despite having a sufficient macronutrient distribution, Portuguese gymnasts consume a high amount of ultra-processed items and a low amount of calcium and iron. The low proportion of female gymnasts with adequate iron consumption is cause for worry in sports nutrition.
    MeSH term(s) Male ; Humans ; Female ; Adolescent ; Calcium ; Energy Intake ; Youth Sports ; Cross-Sectional Studies ; Diet ; Iron ; Calcium, Dietary
    Chemical Substances Calcium (SY7Q814VUP) ; Iron (E1UOL152H7) ; Calcium, Dietary
    Language English
    Publishing date 2023-02-28
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 639259-3
    ISSN 1873-1244 ; 0899-9007
    ISSN (online) 1873-1244
    ISSN 0899-9007
    DOI 10.1016/j.nut.2023.112020
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: The role of sperm and oocyte in fetal programming: Is Lamarck making a comeback?

    Tavares, Renata Santos / Ramalho-Santos, João

    European journal of clinical investigation

    2021  Volume 51, Issue 10, Page(s) e13521

    Abstract: Compelling evidence has shown that parental experiences and age at conception may potentially shape the future health of the next generation(s). Certain factors may affect both the female and, strikingly, the male gametes potentially causing the ... ...

    Abstract Compelling evidence has shown that parental experiences and age at conception may potentially shape the future health of the next generation(s). Certain factors may affect both the female and, strikingly, the male gametes potentially causing the transmission of acquired traits, which was strongly defended by Jean-Baptiste Lamarck. Neurodevelopmental psychiatric disorders, trinucleotide repeat-associated diseases, cardiovascular pathologies, diabetes, obesity and cancer in the offspring, among others, have now been associated with events occurring at the preconception level. The potential implications of a (trans)generational inheritance of parental disease and exposure effects should be taken into account in counselling and public policy. Further research into how exactly gametes apparently deliver more than DNA to a new generation is warranted.
    MeSH term(s) Animals ; Fetal Development ; Humans ; Male ; Oocytes/physiology ; Spermatozoa/physiology
    Language English
    Publishing date 2021-03-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 186196-7
    ISSN 1365-2362 ; 0014-2972 ; 0960-135X
    ISSN (online) 1365-2362
    ISSN 0014-2972 ; 0960-135X
    DOI 10.1111/eci.13521
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Adesão ao padrão alimentar mediterrânico numa população com baixo rendimento

    Rita Chaves / Paula Pereira / Sofia Martins / Renata Ramalho

    RevSALUS, Vol 2, Iss

    2021  Volume 2

    Abstract: Introdução: Portugal é um país de tradição mediterrânica, onde o Padrão Alimentar Mediterrânico é considerado um modelo de alimentação saudável. Contudo, ao longo do tempo tem sido notória uma diminuição gradual da adesão a este padrão. Objetivo: O ... ...

    Abstract Introdução: Portugal é um país de tradição mediterrânica, onde o Padrão Alimentar Mediterrânico é considerado um modelo de alimentação saudável. Contudo, ao longo do tempo tem sido notória uma diminuição gradual da adesão a este padrão. Objetivo: O objetivo do estudo foi avaliar a adesão ao Padrão Alimentar Mediterrânico de acordo com o rendimento mensal. Materiais e métodos: Foi realizado um estudo observacional descritivo com utentes das consultas de nutrição da Unidade de Cuidados de Saúde Primários da Moita e do Montijo. Avaliou-se o rendimento mensal individual ou rendimento familiar per capita de cada participante, através de um questionário sociodemográfico. A adesão ao Padrão Alimentar Mediterrânico foi aferida através do instrumento PREDIMED. Foi também realizada a análise estatística com recurso ao teste Mann-Whitney e Teste de Qui-Quadrado, sendo considerada uma significância de 5%. Resultados: Numa amostra total de 43 participantes, 30% apresentou uma boa adesão ao Padrão Alimentar Mediterrânico. Verificou-se ainda uma diferença importante na adesão ao Padrão Alimentar Mediterrânico de acordo com o rendimento: 64% de adesão na população classificada como “Alto rendimento” versus 14% de adesão na população “Baixo rendimento”. Foi também percetível uma maior adesão a todos os grupos alimentares característicos deste padrão alimentar, pela população “Alto rendimento”. Conclusão: Concluiu-se que a população “Alto rendimento” apresentou uma maior adesão ao Padrão Alimentar Mediterrânico e a todos os seus alimentos característicos, em comparação com a população “Baixo rendimento”.
    Keywords padrão alimentar mediterrânico ; alto rendimento ; baixo rendimento ; nutrição ; saúde ; Medicine ; R
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher Rede Académica das Ciências da Saúde da Lusofonia - RACS
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Host-directed therapies for COVID-19.

    Maeurer, Markus / Ramalho, Renata / Wang, Fu-Sheng / Zumla, Alimuddin

    Current opinion in pulmonary medicine

    2021  Volume 27, Issue 3, Page(s) 205–209

    Abstract: Purpose of review: Severe acute respiratory syndrome coronavirus-2-induced hyperinflammation is a major cause of death or end-organ dysfunction in COVID-19 patients. We review adjunct host-directed therapies (HDTs) for COVID-19 management.: Recent ... ...

    Abstract Purpose of review: Severe acute respiratory syndrome coronavirus-2-induced hyperinflammation is a major cause of death or end-organ dysfunction in COVID-19 patients. We review adjunct host-directed therapies (HDTs) for COVID-19 management.
    Recent findings: The use of umbilical cord-derived mesenchymal stem cells as HDT for COVID-19 has been shown to be safe in phase 1 and 2 trials. Trials of anti-interleukin-6 receptor antibodies show promising mortality benefit in hospitalized COVID-19 patients. Repurposed drugs and monoclonal antibodies targeting specific cytokines acting on different aspects of the pro- and anti-inflammatory cascades are under evaluation.
    Summary: A range of HDTs shows promise for reducing mortality and improving long term disability in patients with severe COVID-19, and require evaluation in randomized, controlled trials.
    MeSH term(s) COVID-19/immunology ; COVID-19/therapy ; Humans ; Immunologic Factors/pharmacology ; Inflammation/immunology ; Inflammation/therapy ; Mesenchymal Stem Cell Transplantation/methods ; Molecular Targeted Therapy/methods ; SARS-CoV-2
    Chemical Substances Immunologic Factors
    Language English
    Publishing date 2021-01-30
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 1285505-4
    ISSN 1531-6971 ; 1070-5287 ; 1078-1641
    ISSN (online) 1531-6971
    ISSN 1070-5287 ; 1078-1641
    DOI 10.1097/MCP.0000000000000769
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Nutritional senolytics and senomorphics: Implications to immune cells metabolism and aging - from theory to practice.

    Luís, Carla / Maduro, Ana T / Pereira, Paula / Mendes, José João / Soares, Raquel / Ramalho, Renata

    Frontiers in nutrition

    2022  Volume 9, Page(s) 958563

    Abstract: Aging is a natural physiological process, but one that poses major challenges in an increasingly aging society prone to greater health risks such as diabetes, cardiovascular disease, cancer, frailty, increased susceptibility to infection, and reduced ... ...

    Abstract Aging is a natural physiological process, but one that poses major challenges in an increasingly aging society prone to greater health risks such as diabetes, cardiovascular disease, cancer, frailty, increased susceptibility to infection, and reduced response to vaccine regimens. The loss of capacity for cell regeneration and the surrounding tissue microenvironment itself is conditioned by genetic, metabolic, and even environmental factors, such as nutrition. The senescence of the immune system (immunosenescence) represents a challenge, especially when associated with the presence of age-related chronic inflammation (inflammaging) and affecting the metabolic programming of immune cells (immunometabolism). These aspects are linked to poorer health outcomes and therefore present an opportunity for host-directed interventions aimed at both eliminating senescent cells and curbing the underlying inflammation. Senotherapeutics are a class of drugs and natural products that delay, prevent, or reverse the senescence process - senolytics; or inhibit senescence-associated secretory phenotype - senomorphics. Natural senotherapeutics from food sources - nutritional senotherapeutics - may constitute an interesting way to achieve better age-associated outcomes through personalized nutrition. In this sense, the authors present herein a framework of nutritional senotherapeutics as an intervention targeting immunosenescence and immunometabolism, identifying research gaps in this area, and gathering information on concluded and ongoing clinical trials on this subject. Also, we present future directions and ideation for future clinical possibilities in this field.
    Language English
    Publishing date 2022-09-08
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2776676-7
    ISSN 2296-861X
    ISSN 2296-861X
    DOI 10.3389/fnut.2022.958563
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: “Massa de Malagueta”

    Lia Correia / Inês Mendes / Sofia Ortiz / Renata Ramalho / Paula Pereira

    Annals of Medicine, Vol 53, Iss sup1, Pp S133-S

    tradition with a twist

    2021  Volume 133

    Abstract: AbstractIntroduction OMS estimates that, in 2010, approximately 600 million people had hypertension (HT) globally. The prevalence of HT in Portugal is between 30 ando 45% and in the Azores is 33.6%. The high salt chilli sauce “Massa de Malagueta (MM)”, ... ...

    Abstract AbstractIntroduction OMS estimates that, in 2010, approximately 600 million people had hypertension (HT) globally. The prevalence of HT in Portugal is between 30 ando 45% and in the Azores is 33.6%. The high salt chilli sauce “Massa de Malagueta (MM)”, widely used in this archipelago, may contribute to this prevalence since excess dietary sodium predisposes to high blood pressure.Objectives Our aims were to reformulate the recipe of MM into a healthier version (lower salt, better ingredients), to determine its organoleptic acceptability, and total antioxidant capacity (TAC) in comparison to the traditional recipe.Methods Traditional version was designed sample A. The healthier version (sample B) was prepared by combining pepper, shredded tomato, dried tomato, garlic, Indian saffron, iodised salt (2.5 g per 100 g) and lemon juice. This was prepared several times prior to the final combination. Then, a sensory test was performed with 50 voluntary participants (84% females and 16% males) with a mean age of 21.84 (± 4.55) years, to evaluate the acceptability of both samples. A Food Neophobia Questionnaire (FNQ) and a Samples Assessment Questionnaire (SAQ) were also applied. TAC was quantified by a Folin–Ciocalteu spectrophotometric method [1].Results Sample A contains only pepper and salt (14.8 g per 100 g), while sample B presented additional compounds with antioxidant activity. Concerning FNQ and SAQ, the vast majority of participants were willing to try the samples and had considered sample B has a more pleasant smell, taste and texture. Also, sample B presented a higher TAC than sample A (1.5088mg/mL versus 0.6182mg/mL).Conclusion The healthier version of MM presented lower salt (12.5% less) and had higher TAC than the traditional recipe. Also, this version was organoleptically acceptable. The higher TAC may be explained by the ingredients used. This study reveals that modifications of traditional recipes may increase nutritional value without compromising acceptance.
    Keywords Medicine ; R
    Language English
    Publishing date 2021-04-01T00:00:00Z
    Publisher Taylor & Francis Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Food intake assessment and anthropometric characterisation of teenage gymnasts

    Marcela Holanda / Patrícia Lavado / Filipa Vicente / Renata Ramalho / Paula Pereira

    Annals of Medicine, Vol 53, Iss sup1, Pp S137-S

    2021  Volume 137

    Abstract: AbstractIntroduction Food and nutrition have a critical role in health, sports performance but also in a proper growth a development when we consider young athletes [1,2]. In addition to the increased energy needs, there is a special concern in ensuring ... ...

    Abstract AbstractIntroduction Food and nutrition have a critical role in health, sports performance but also in a proper growth a development when we consider young athletes [1,2]. In addition to the increased energy needs, there is a special concern in ensuring adequate intakes of specific micronutrients such as calcium and iron [3]. The aim of the present study was to evaluate the food intake of a group of teenager gymnasts and to compare energy, macronutrient and micronutrient intake with recommendations for this age group.Methods In this observational study, the teenager gymnasts had answered two 24 h dietary recall applied three days apart. The sample included 66 participants 11–17 (14.74 ± 1.79) years old and 26 (39%) were male. Participants were weighted in a 100 g digital sacale (Beurer GS-10) and had their height measured in a stadiometer (SECA213). Body fat had been assessed through skinfold measurement using a INNOVACARE Cescorf through Durnin & Womersley formula which included 5-site measures (bicep, tricep, subscapula, suprailiac and abdominal).Results Results had shown that 15% were overweight and only 3% were obese, 39% of the sample had normal values of body fat. The average energy intake was 1660 ± 621 kcal while the calcium average intake was 652 ± 307 mg, significantly lower than the recommended value (p = .02). The average Iron intake in female athletes was 7.68 ± 2.81 mg, also significantly lower than the recommended (p = .03). In this sample 23 participants (35%) of the young athletes did not had any dairy portion and 47 (72%) did not had any portion of vegetables daily.Conclusions Data of this sample had shown a very low calcium intake in the participants and also a low iron intake in female individuals. Considering the age group, these results reinforce the importance of the nutritionist role in sports specially in young athletes in order to improve not only individual choices but also nutritional knowledge.
    Keywords Medicine ; R
    Subject code 796
    Language English
    Publishing date 2021-04-01T00:00:00Z
    Publisher Taylor & Francis Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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