usiasm toward the exergame.

The findings suggest that the developed exergame helps in improving the functional capacity and adherence to physical exercise among older people, with even better results for those who played with peers. In addition to leading to more appropriate products, a co-design approach may positively influence the motivation and adherence of participants.

The findings suggest that the developed exergame helps in improving the functional capacity and adherence to physical exercise among older people, with even better results for those who played with peers. In addition to leading to more appropriate products, a co-design approach may positively influence the motivation and adherence of participants.

Mobile health (mHealth) interventions offer great potential to reach large populations and improve public health. However, high attrition rates threaten evaluation and implementation of mHealth intervention studies.

We explored factors associated with attrition of study participants in an mHealth randomized controlled trial (RCT) evaluating an intervention to reduce unintentional child injury risk in China.

The cluster RCT compared two groups of an app-based intervention for caregivers of 3-6-year-old children (Bao Hu San). The intervention group received unintentional child injury and parenting education, whereas only parenting education was implemented in the control group. The trial included 2920 study participants in Changsha, China, and lasted 6 months. Data on participant engagement (using the app) were collected electronically throughout the 6-month period. Associations between participant attrition and demographic characteristics, and between attrition and intervention engagement were tested andn. Researchers and practitioners should consider how to best engage participants in app-based interventions to reduce attrition.

Chinese Clinical Trial Registry ChiCTR-IOR-17010438; http//www.chictr.org.cn/showproj.aspx?proj=17376.

RR2-10.1186/s12889-018-5790-1.

RR2-10.1186/s12889-018-5790-1.Aging is a complex process that results in loss of the ability to reattain homeostasis following stress, leading, thereby, to increased risk of morbidity and mortality. Many factors contribute to aging, such as the time-dependent accumulation of macromolecular damage, including DNA damage. The integrity of the nuclear genome is essential for cellular, tissue, and organismal health. DNA damage is a constant threat because nucleic acids are chemically unstable under physiological conditions and vulnerable to attack by endogenous and environmental factors. To combat this, all organisms possess highly conserved mechanisms to detect and repair DNA damage. Persistent DNA damage (genotoxic stress) triggers signaling cascades that drive cells into apoptosis or senescence to avoid replicating a damaged genome. The drawback is that these cancer avoidance mechanisms promote aging. Here, we review evidence that DNA damage plays a causal role in aging. We also provide evidence that genotoxic stress is linked to other cellular processes implicated as drivers of aging, including mitochondrial and metabolic dysfunction, altered proteostasis and inflammation. These links between damage to the genetic code and other pillars of aging support the notion that DNA damage could be the root of aging.Senescent cells, damaged cells that permanently exit the cell cycle, play important roles in development, tissue homeostasis, and tumorigenesis. see more Although many of these roles are beneficial in acute responses to stress and damage, the persistent accumulation of senescent cells is associated with many chronic diseases through their proinflammatory senescence-associated secretory phenotype (SASP). SASP expression is linked to DNA damage; however, the mechanisms that control the SASP are incompletely understood. More recently, it has been shown that senescent cells shed fragments of nuclear chromatin into the cytoplasm, so called cytoplasmic chromatin fragments (CCF). Here, we provide an overview of the current evidence linking DNA damage to the SASP through the formation of CCF. We describe mechanisms of CCF generation and their functional role in senescent cells, with emphasis on therapeutic potential.

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is a rare T-cell neoplasm that is predominantly associated with the use of textured implants. Recently, several countries have tried to clarify their epidemiological profile of BIA-ALCL. This study aims to estimate the number of cases of BIA-ALCL in Portugal and to describe the pattern of use of breast implants at a national level.

This is a cross-sectional study including 57 healthcare institutions – 29 public hospitals and 28 private institutions. Each department of Plastic, Reconstructive and Aesthetic Surgery was asked to provide information concerning the main manufacturer(s) and respective device texture of the breast implants used, and to report the number of registered cases of BIA-ALCL.

In our study sample, the response rate was 58%. In our sample, most hospitals reported using textured breast implants from Mentor (45.45%), Allergan (42.42%) and Polytech (39.39%). Only one private institution referred using smooth-coated implants from Mentor and Motiva. Despite several hospitals reporting late-onset seromas, there was only one confirmed case of BIA-ALCL after proper investigation with immunohistochemistry and histological procedures.

BIA-ALCL may represent a shift for surgeons regarding selection of implant type. Smooth-coated implants or autologous tissue represent adequate alternatives that could surpass the risks associated with textured devices.

In the future, the creation of a national patient registry and proper recognition of BIA-ALCL by plastic surgeons could be useful tools to clarify the impact of the disease nationally and to mitigate potential risk factors.

In the future, the creation of a national patient registry and proper recognition of BIA-ALCL by plastic surgeons could be useful tools to clarify the impact of the disease nationally and to mitigate potential risk factors.