A Scoping Review to Assess Sexual and Reproductive Health Outcomes, Challenges and Recommendations in the Context of Climate Migration

Background: As growing numbers of people may be forced to migrate due to climate change and variability, it is important to consider the disparate impacts on health for vulnerable populations, including sexual and reproductive health (SRH). This scoping review aims to explore the relationship between climate migration and SRH. Methods: We searched PubMed/MEDLINE, CINAHL Plus, EMBASE, Web of Science, Scopus, Global Health and Google for peer-reviewed and gray literature published before 2nd July 2021 in English that reported on SRH in the context of climate migration. Data were extracted using a piloted extraction tool and findings are reported in a narrative synthesis. Results: We screened 1,607 documents. Ten full-text publications were included for analysis: five peer-reviewed articles and five gray literature documents. Reported SRH outcomes focused on maternal health, access to family planning and antiretroviral therapy, sexual and gender-based violence, transactional sex, and early/forced marriage. Recommendations to improve SRH in the context of climate migration called for gender-transformative health systems, education and behavior change programmes, and the involvement of local women in policy planning and programme implementation. Discussion: While the disparate impacts of climate change and migration are well-established, primary data on the scope of impact due to climate migration is limited. The SRH outcomes reported in the literature focus on a relatively narrow range of SRH domains, emphasizing women and girls, over men. Achieving holistic and equitable SRH in the context of climate migration requires engaging all genders across the range of SRH outcomes and migration contexts. This review highlights the need for further empirical evidence on the effect of climate migration on SRH, with research that is context-specific and engages communities in order to reflect the heterogeneity of outcomes and impact in the climate-migration-SRH nexus.

[COVID-19 and Its Potential for Disruption and Transformation in Public Health: Lessons Learned from the Perspective of Young Professionals]

The COVID-19 pandemic has both exposed and intensified various challenges for Public Health and the Public Health service (ÖGD) in Germany. However, it also offers a window of opportunity for effective long-term transformation of the country's Public Health system. Against this backdrop, an online survey was carried out among the members of the German Network of Young Professionals in Public Health (Nachwuchsnetzwerk Öffentliche Gesundheit (NÖG)) in October and November 2020. It sought to elicit members' experiences and views related to Public Health during the COVID-19 pandemic. The resulting preliminary "lessons learned" for the German Public Health context are presented in this article. Based on the results of the survey, recommendations were formulated which are intended to provide targeted and concrete advice for the strengthening and transformation of Public Health in Germany. The main issues that preoccupied the young professionals were the increased public and political attention to Public Health and the narrow focus on infectious disease control, the standing of Public Health in Germany and the strengths and weaknesses of Public Health structures and workforce. The recommendations are aimed at promoting long-term and holistic strengthening of Public Health, with the training of an interdisciplinary workforce of young professionals presenting a key focus.

Fast-ion Dα spectroscopy diagnostic at KSTAR

A fast-ion Dα (FIDA) diagnostics system was installed for core and edge measurements on KSTAR. This system has two tangential FIDA arrays that cover both blue- and redshifted Dα lines (cold: 656.09 nm) in active views along the neutral beam 1 A centerline. The spectral band is 647-662.5 nm, and it covers the Doppler shift of the emission from the maximum energy of the neutral beam (100 keV). A curved filter strip with a motorized stage adequately prevents saturation of the electron multiplying charge-coupled device signal by the cold Dα line from the plasma edge. From comparisons of the measured spectra and FIDASIM modeling code, the FIDA spectra are well matched quantitatively. Moreover, the first measurements show that the FIDA radiance agrees with the neutron rate in the time trace during external heating and perturbation. In addition, responses are observed in the core FIDA radiance during the edge-localized mode cycle.

Comparative Analysis of Dry and Wet Porometry Methods for Characterization of Regular and Cross-Linked Virus Removal Filter Papers

Pore-size distribution (PSD) is the most critical parameter for size-exclusion virus removal filters. Yet, different dry- and wet-state porometry methods yield different pore-size values. The goal of this work is to conduct comparative analysis of nitrogen gas sorption (NGSP), liquid-liquid and cryoporometry with differential scanning calorimetry (CP-DSC) methods with respect to characterization of regular and cross-linked virus removal filter paper based on cellulose nanofibers, i.e. the mille-feuille filter. The filters were further characterized with atomic force and scanning electron microscopy. Finally, the removal of the worst-case model virus, i.e. minute virus of mice (MVM; 20 nm, nonenveloped parvovirus) was evaluated. The results revealed that there is no difference of the obtained PSDs between the wet methods, i.e. DSC and liquid-liquid porometry (LLP), as well as no difference between the regular and cross-linked filters regardless of method. MVM filtration at different trans membrane pressure (TMP) revealed strong dependence of the virus removal capability on applied pressure. It was further observed that cross-linking filters showed enhanced virus removal, especially at lower TMP. In all, the results of this study highlight the complex nature of virus capture in size-exclusion filters.

Random Mutagenesis, Clonal Events, and Embryonic or Somatic Origin Determine the mtDNA Variant Type and Load in Human Pluripotent Stem Cells

In this study, we deep-sequenced the mtDNA of human embryonic and induced pluripotent stem cells (hESCs and hiPSCs) and their source cells and found that the majority of variants pre-existed in the cells used to establish the lines. Early-passage hESCs carried few and low-load heteroplasmic variants, similar to those identified in oocytes and inner cell masses. The number and heteroplasmic loads of these variants increased with prolonged cell culture. The study of 120 individual cells of early- and late-passage hESCs revealed a significant diversity in mtDNA heteroplasmic variants at the single-cell level and that the variants that increase during time in culture are always passenger to the appearance of chromosomal abnormalities. We found that early-passage hiPSCs carry much higher loads of mtDNA variants than hESCs, which single-fibroblast sequencing proved pre-existed in the source cells. Finally, we show that these variants are stably transmitted during short-term differentiation.

Translation of Expanded CGG Repeats into FMRpolyG Is Pathogenic and May Contribute to Fragile X Tremor Ataxia Syndrome

Fragile X-associated tremor/ataxia syndrome (FXTAS) is a neurodegenerative disorder caused by a limited expansion of CGG repeats in the 5′ UTR of FMR1. Two mechanisms are proposed to cause FXTAS: RNA gain-of-function, where CGG RNA sequesters specific proteins, and translation of CGG repeats into a polyglycine-containing protein, FMRpolyG. Here we developed transgenic mice expressing CGG repeat RNA with or without FMRpolyG. Expression of FMRpolyG is pathogenic, while the sole expression of CGG RNA is not. FMRpolyG interacts with the nuclear lamina protein LAP2β and disorganizes the nuclear lamina architecture in neurons differentiated from FXTAS iPS cells. Finally, expression of LAP2β rescues neuronal death induced by FMRpolyG. Overall, these results suggest that translation of expanded CGG repeats into FMRpolyG alters nuclear lamina architecture and drives pathogenesis in FXTAS.

•

CGG repeats in the 5′ UTR of FMR1 are translated through initiation to an ACG codon

•

Translation of CGG repeats in the polyglycine protein, FMRpolyG, is toxic in mice

•

FMRpolyG binds and disrupts protein of the nuclear lamina