Background Advances in cancer treatments,particularly the development of radiation therapy,have led to improvements in survival outcomes in children with brain ***,radiation therapy is associated with significant long...
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Background Advances in cancer treatments,particularly the development of radiation therapy,have led to improvements in survival outcomes in children with brain ***,radiation therapy is associated with significant long-term neurocognitive *** present systematic review and meta-analysis aimed to compare the neurocognitive outcomes of children and adolescents with brain tumors treated with photon radiation(XRT)or proton therapy(PBRT).Methods A systematic search was conducted(PubMed,Embase,Cochrane,and Web of Science from inception until 02/01/2022)for studies comparing the neurocognitive outcomes of children and adolescents with brain tumors treated with XRT *** pooled mean differences(expressed as Z scores)were calculated using a random effects method for those endpoints analyzed by a minimum of three *** Totally 10 studies(n=630 patients,average age range:1–20 years)met the inclusion *** who had received PBRT achieved significantly higher scores(difference in Z scores ranging from 0.29–0.75,all P0.05 in main analyses or sensitivity analyses)were found for nonverbal memory,verbal working memory and working memory index,processing speed index,or focused *** Pediatric brain tumor patients who receive PBRT achieve significantly higher scores on most neurocognitive outcomes than those who receive *** studies with long-term follow-ups are needed to confirm these results.
Postcopulatory sexual selection through sperm competition may be an important evolutionary force affecting many reproductive traits, including sperm morphometrics. Environmental factors such as pollutants, pesticides,...
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Postcopulatory sexual selection through sperm competition may be an important evolutionary force affecting many reproductive traits, including sperm morphometrics. Environmental factors such as pollutants, pesticides, and climate change may affect different sperm traits, and thus reproduction, in sensitive bird species. Many sperm-handling processes used in assisted reproductive techniques may also affect the size of sperm cells. The accurately measured dimensions of sperm cell structures (especially the head) can thus be used as indicators of environmental influences, in improving our understanding of reproductive and evolutionary strategies, and for optimizing assisted reproductive techniques (e.g., sperm cryopreservation) for use with birds. Computer-assisted sperm morphometry analysis (CASA-Morph) provides an accurate and reliable method for assessing sperm morphometry, reducing the problem of subjectivity associated with human visual assessment. Computerized systems have been standardized for use with semen from different mammalian species. Avian spermatozoa, however, are filiform, limiting their analysis with such systems, which were developed to examine the approximately spherical heads of mammalian sperm cells. To help overcome this, the standardization of staining techniques to be used in compute^-assessed light microscopical methods is a priority. The present review discusses these points and describes the sperm morphometric characteristics of several wild and domestic bird species.
Given the increasing complexity of cancer care,multidisciplinary tumor boards have become essential in daily clinical oncology *** Project Extension for Community Healthcare Outcomes(ECHO)initiative developed an innov...
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Given the increasing complexity of cancer care,multidisciplinary tumor boards have become essential in daily clinical oncology *** Project Extension for Community Healthcare Outcomes(ECHO)initiative developed an innovative telementoring model using a"hub and spoke"design consisting of a team of experts(hub)that offers a full service to multiple participants(the spokes)during regularly scheduled sessions discussing patients'clinical *** Alexander Fleming Cancer Institute in Buenos Aires was the first hub in Latin America to implement Project ECHO for gastrointestinal *** our 3-year experience,80 patients from 37 centers were evaluated within Project ECHO and a range of three to five cases were discussed in each *** our perspective,the impact of this novel approach was a remarkable strategy to reduce care disparities by equalizing access to high-quality medical knowledge in a multidisciplinary environment for medical ***,it was shown to have a cost-effective impact directly on the patients and the local health system,since relevant costs were saved after unnecessary treatments,studies and travel expenses were avoided.
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