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1.
Cell ; 173(3): 581-594.e12, 2018 04 19.
Artigo em Inglês | MEDLINE | ID: mdl-29656895

RESUMO

Clear-cell renal cell carcinoma (ccRCC) exhibits a broad range of metastatic phenotypes that have not been systematically studied to date. Here, we analyzed 575 primary and 335 metastatic biopsies across 100 patients with metastatic ccRCC, including two cases sampledat post-mortem. Metastatic competence was afforded by chromosome complexity, and we identify 9p loss as a highly selected event driving metastasis and ccRCC-related mortality (p = 0.0014). Distinct patterns of metastatic dissemination were observed, including rapid progression to multiple tissue sites seeded by primary tumors of monoclonal structure. By contrast, we observed attenuated progression in cases characterized by high primary tumor heterogeneity, with metastatic competence acquired gradually and initial progression to solitary metastasis. Finally, we observed early divergence of primitive ancestral clones and protracted latency of up to two decades as a feature of pancreatic metastases.


Assuntos
Carcinoma de Células Renais/genética , Carcinoma de Células Renais/patologia , Neoplasias Renais/genética , Neoplasias Renais/patologia , Mutação , Metástase Neoplásica , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores/metabolismo , Biópsia , Mapeamento Cromossômico , Cromossomos Humanos Par 14 , Cromossomos Humanos Par 9 , Progressão da Doença , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Fenótipo , Estudos Prospectivos , Trombose , Resultado do Tratamento
2.
Nature ; 585(7826): 551-556, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32908312

RESUMO

Increased efforts are required to prevent further losses to terrestrial biodiversity and the ecosystem services that it  provides1,2. Ambitious targets have been proposed, such as reversing the declining trends in biodiversity3; however, just feeding the growing human population will make this a challenge4. Here we use an ensemble of land-use and biodiversity models to assess whether-and how-humanity can reverse the declines in terrestrial biodiversity caused by habitat conversion, which is a major threat to biodiversity5. We show that immediate efforts, consistent with the broader sustainability agenda but of unprecedented ambition and coordination, could enable the provision of food for the growing human population while reversing the global terrestrial biodiversity trends caused by habitat conversion. If we decide to increase the extent of land under conservation management, restore degraded land and generalize landscape-level conservation planning, biodiversity trends from habitat conversion could become positive by the mid-twenty-first century on average across models (confidence interval, 2042-2061), but this was not the case for all models. Food prices could increase and, on average across models, almost half (confidence interval, 34-50%) of the future biodiversity losses could not be avoided. However, additionally tackling the drivers of land-use change could avoid conflict with affordable food provision and reduces the environmental effects of the food-provision system. Through further sustainable intensification and trade, reduced food waste and more plant-based human diets, more than two thirds of future biodiversity losses are avoided and the biodiversity trends from habitat conversion are reversed by 2050 for almost all of the models. Although limiting further loss will remain challenging in several biodiversity-rich regions, and other threats-such as climate change-must be addressed to truly reverse the declines in biodiversity, our results show that ambitious conservation efforts and food system transformation are central to an effective post-2020 biodiversity strategy.


Assuntos
Biodiversidade , Conservação dos Recursos Naturais/métodos , Conservação dos Recursos Naturais/tendências , Política Ambiental/tendências , Atividades Humanas/tendências , Dieta , Dieta Vegetariana/tendências , Abastecimento de Alimentos , Humanos , Desenvolvimento Sustentável/tendências
3.
Sex Transm Dis ; 51(7): 466-471, 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38597652

RESUMO

BACKGROUND: Black adolescent girls and young women (AGYW) in the US Southeast are disproportionately burdened by HIV. Infrequent assessment of sexual health in clinical encounters may contribute to low preexposure prophylaxis uptake for this population. This study explores Black AGYW and providers' perspectives on engaging in discussions about sexual health, including preexposure prophylaxis. METHODS: In-depth interviews (IDIs) were conducted with Black AGYW aged 14 to 24 years and health care providers (MD, DO, NP, PA) who self-reported caring for Black AGYWs in Alabama. In-depth interviews were grounded in Andersen's Behavioral Model of Health Service Utilization to explore barriers and facilitators to sexual health discussions. After separate analyses, AGYW and provider IDIs were aggregated and reanalyzed using thematic analysis to identify themes related to their views on ways to improve Black AGYW engagement in sexual health discussions while in clinical settings. RESULTS: Twelve Black AGYW and 11 providers completed IDIs. Client median age was 21 years, representing 9 Alabama counties. Providers were predominately non-Hispanic White (82%), female (73%), and physicians (64%). Themes about ways to improve sexual health discussions included the following: (1) improve sexual health education for providers and adolescents, (2) normalize conversations in clinical settings, and (3) engage communities to continue these conversations outside of clinical settings. CONCLUSIONS: Sexual health and HIV prevention discussions with Black AGYW are not occurring. This study is one of the first to identify and highlight Black AGYW and provider-identified shared strategies for improving these discussions. Operationalizing these strategies is crucial to facilitating these discussions.


Assuntos
Negro ou Afro-Americano , Infecções por HIV , Saúde Sexual , Humanos , Feminino , Adolescente , Infecções por HIV/prevenção & controle , Adulto Jovem , Negro ou Afro-Americano/psicologia , Alabama , Entrevistas como Assunto , Pessoal de Saúde/psicologia , Profilaxia Pré-Exposição , Pesquisa Qualitativa , Comportamento Sexual , Conhecimentos, Atitudes e Prática em Saúde , Comunicação , Adulto
4.
BMC Health Serv Res ; 24(1): 101, 2024 Jan 18.
Artigo em Inglês | MEDLINE | ID: mdl-38238697

RESUMO

BACKGROUND: Alabama is one of seven priority states for the National Ending the HIV Epidemic Initiative due to a disproportionate burden of rural infections. To reverse growing infection rates, the state must increase its focus on prevention efforts, including novel strategies. One such approach is to utilize dashboards that visualize real-time data on the pre-exposure prophylaxis (PrEP) care continuum to assist in prioritizing evidence-based preventative care for those most vulnerable for HIV infection. METHODS: We conducted a mixed methods evaluation to ascertain stakeholders' perceptions on the acceptability, feasibility, appropriateness, and usability of a PrEP care continuum dashboard, as well as gain insight on ways to improve the activities necessary to sustain it. Clinicians, administrators, and data personnel from participating sites in Alabama completed surveys (n = 9) and participated in key informant interviews (n = 10) to better understand their experiences with the prototype data dashboard and to share feedback on how it can be modified to best fit their needs. RESULTS: Surveys and interviews revealed that all participants find the pilot data dashboard to be an acceptable, feasible, and appropriate intervention for clinic use. Overall, stakeholders find the pilot dashboard to be usable and helpful in administrative efforts, such as report and grant writing; however, additional refining is needed in order to reduce burden and optimize usefulness. Participants voiced concerns about their site's abilities to sustain the dashboard, including the lack of systematized PrEP protocols and limited funds and staff time dedicated to PrEP data collection, cleaning, and upload. CONCLUSION: Study participants from clinics providing HIV prevention services, including PrEP, in Alabama voiced interest in sustaining and refining a data dashboard that tracks clients across the PrEP care continuum. Despite viewing the platform itself as an acceptable, feasible, and appropriate intervention, participants agreed that efforts need to be focused on standardizing PrEP data collection protocols in order to ensure consistent, accurate data capture and that limited funds and staff time are barriers to the sustained implementation of the dashboard in practice.


Assuntos
Síndrome da Imunodeficiência Adquirida , Fármacos Anti-HIV , Infecções por HIV , Profilaxia Pré-Exposição , Humanos , Infecções por HIV/prevenção & controle , Infecções por HIV/tratamento farmacológico , Estudos de Viabilidade , Fármacos Anti-HIV/uso terapêutico , Síndrome da Imunodeficiência Adquirida/tratamento farmacológico , Sudeste dos Estados Unidos , Profilaxia Pré-Exposição/métodos
5.
AIDS Care ; 34(11): 1473-1480, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-35914114

RESUMO

HIV disproportionately impacts many groups, including Black adolescent girls and young women (AGYW) aged 13-24 living in the Deep South. Current prevention efforts have the potential to further exacerbate disparities within this population as HIV pre-exposure prophylaxis (PrEP) remains underutilized by Black AGYW in the South. We conducted in-depth interviews (IDIs) grounded in Andersen's Model of Healthcare Utilization exploring providers' PrEP prescribing practices to Black AGYW in Alabama. Eleven providers completed IDIs exploring providers' PrEP prescription knowledge and experiences. Cross-cutting themes included: (1) Community and provider-level stigmas (including those propagated by legislation) relating to HIV and sexuality limit sexual health discussions with Black AGYW clients; (2) Low PrEP knowledge and comfort with guidelines limits PrEP conversations and reinforces low uptake and prescriptions; (3) Healthcare systems and structural barriers impede PrEP access for youth. Multi-level (structural, community, and provider) barriers to PrEP prescription demands high activation energy for providers to prescribe PrEP. We present recommendations in training in sexual health assessment, updates to PrEP guidelines to accommodate risk assessment appropriate for AGYW, and increased implementation science focused on PrEP prescription for Black AGYW in order to reduce HIV incidence for this population.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Profilaxia Pré-Exposição , Adolescente , Feminino , Humanos , Alabama , Fármacos Anti-HIV/uso terapêutico , Negro ou Afro-Americano , Infecções por HIV/prevenção & controle , Infecções por HIV/tratamento farmacológico , Prescrições , Adulto Jovem
6.
Nicotine Tob Res ; 24(4): 444-452, 2022 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-34375426

RESUMO

INTRODUCTION: ransgender and gender diverse (TGD) people have a higher prevalence of tobacco and nicotine use compared to their cisgender peers. AIMS AND METHODS: Using the minority stress model as a guide, we conducted a systematic review of correlates of tobacco and nicotine use among TGD people. We reviewed the literature from Pubmed, PsycINFO, and CINAHL between April 1, 1995 and April 20, 2021. Article inclusion criteria were the following: written in English, reported empirical data, sampled exclusively or reported separate outcomes for transgender/gender diverse people, and reported correlates of tobacco or nicotine use, broadly defined. The first and second authors reviewed the articles retrieved from the search and from gray literature (relevant listserv solicitations) for inclusion. They then reviewed references of any included articles for additional candidate articles.Results: This resulted in 35 articles for review, which were synthesized in a qualitative fashion. The overall quality of the articles was fair, with the articles ranging from poor to fair quality and using primarily cross-sectional design and survey methods. CONCLUSIONS: Overall, the literature demonstrated external minority stressors were mostly researched (and supported) correlates of tobacco and nicotine use among TGD people. There is a critical need for higher quality research, such as longitudinal or experimental designs, to improve our understanding and prevention of tobacco and nicotine use in this population. IMPLICATIONS: This systematic review used the minority stress model as a guide to understand correlates of tobacco and nicotine use among transgender and gender diverse people. Literature of fair quality demonstrated that external minority stressors were the most researched and supported correlates of tobacco and nicotine use within the framework of the minority stress model. This review demonstrated a critical need for higher quality research, such as longitudinal or experimental designs, to improve our understanding and prevention of tobacco and nicotine use in this population. Preliminary findings from the limited literature highlight factors that may be relevant to target with this population, including general/environmental stressors and external minority stressors such as discrimination.


Assuntos
Nicotina , Pessoas Transgênero , Estudos Transversais , Identidade de Gênero , Humanos , Nicotiana
7.
Can J Surg ; 65(5): E675-E682, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36223936

RESUMO

BACKGROUND: Studies have estimated that a large backlog of procedures was generated by emergency measures implemented in Ontario, Canada, at the onset of the COVID-19 pandemic, when nonessential and scheduled procedures were postponed. Understanding the impact of the COVID-19 pandemic on the time needed to perform a procedure may help to determine the resources needed to tackle the substantial backlog caused by the deferral of cases. The purpose of this study was to examine the duration of operating room (OR) procedures before and after the onset of the COVID-19 pandemic to inform planning around changes in required resources. METHODS: A population-based, retrospective cohort study was conducted using Ontario Health Insurance Plan claims data and other administrative health care data from Apr. 1, 2019, to Sept. 30, 2020. Statistical analysis was conducted using multivariate regression, with procedure duration as the outcome variable. RESULTS: Results showed that the average duration of nonelective procedures increased by 34 minutes during the COVID-19 period and by 19 minutes after the resumption of scheduled procedures. Controlling for physician, patient and hospital characteristics, and the procedure code submitted, procedure duration increased by 12 minutes in the nonelective COVID-19 period and by 5 minutes when scheduled procedures resumed, compared with the pre-COVID-19 period. CONCLUSION: Procedures may take longer in the COVID-19 period. This will affect wait times, which had already increased because of the deferral of procedures at the beginning of the pandemic, and will have an impact on Ontario's ability to provide patients with timely care.


Assuntos
COVID-19 , COVID-19/epidemiologia , Humanos , Ontário/epidemiologia , Salas Cirúrgicas , Pandemias/prevenção & controle , Estudos Retrospectivos
8.
HIV Med ; 22(10): 944-957, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34432363

RESUMO

INTRODUCTION: Chemsex in a European context is the use of any of the following drugs to facilitate sex: crystal methamphetamine, mephedrone and gamma-hydroxybutyrate (GHB)/gamma-butyrolactone (GBL) and, to a lesser extent, cocaine and ketamine. This study describes the prevalence of self-reported recreational drug use and chemsex in HIV-positive men who have sex with men (MSM) accessing HIV services in four countries. It also examines the problematic impacts and harms of chemsex and access to chemsex-related services. METHODS: This is a cross-sectional multi-centre questionnaire study of HIV-positive MSM accessing nine HIV services in the UK, Spain, Greece and Italy. RESULTS: In all, 1589 HIV-positive MSM attending HIV services in four countries completed the questionnaire. The median age of participants was 38 years (interquartile range: 32-46 years) and 1525 (96.0%) were taking antiretroviral therapy (ART). In the previous 12 months, 709 (44.6%) had used recreational drugs, 382 (24.0%) reported chemsex and 104 (6.5%) reported injection of chemsex-associated drugs ('slamsex'). Of the 382 engaging in chemsex, 155 (40.6%) reported unwanted side effects as a result of chemsex and 81 (21.2%) as a result of withdrawal from chemsex. The reported negative impacts from chemsex were on work (25.1%, 96), friends/family (24.3%, 93) and relationships (28.3%, 108). Fifty-seven (14.9%) accessed chemsex-related services in the past year, 38 of whom (67%) felt the service met their needs. DISCUSSION: A quarter of participants self-reported chemsex in the past 12 months. There were high rates of harms from chemsex across all countries, including negative impacts on work, friends/family and relationships. Although a minority of those engaging in chemsex accessed support, most found this useful.


Assuntos
Infecções por HIV , Drogas Ilícitas , Minorias Sexuais e de Gênero , Transtornos Relacionados ao Uso de Substâncias , Adulto , Estudos Transversais , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Homossexualidade Masculina , Humanos , Drogas Ilícitas/efeitos adversos , Masculino , Pessoa de Meia-Idade , Comportamento Sexual , Transtornos Relacionados ao Uso de Substâncias/epidemiologia
9.
PLoS Biol ; 16(12): e2006841, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30513079

RESUMO

Human use of the land (for agriculture and settlements) has a substantial negative effect on biodiversity globally. However, not all species are adversely affected by land use, and indeed, some benefit from the creation of novel habitat. Geographically rare species may be more negatively affected by land use than widespread species, but data limitations have so far prevented global multi-clade assessments of land-use effects on narrow-ranged and widespread species. We analyse a large, global database to show consistent differences in assemblage composition. Compared with natural habitat, assemblages in disturbed habitats have more widespread species on average, especially in urban areas and the tropics. All else being equal, this result means that human land use is homogenizing assemblage composition across space. Disturbed habitats show both reduced abundances of narrow-ranged species and increased abundances of widespread species. Our results are very important for biodiversity conservation because narrow-ranged species are typically at higher risk of extinction than widespread species. Furthermore, the shift to more widespread species may also affect ecosystem functioning by reducing both the contribution of rare species and the diversity of species' responses to environmental changes among local assemblages.


Assuntos
Agricultura/métodos , Biodiversidade , Conservação dos Recursos Naturais/métodos , Animais , Ecossistema , Humanos , Recursos Naturais
10.
Nature ; 520(7545): 45-50, 2015 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-25832402

RESUMO

Human activities, especially conversion and degradation of habitats, are causing global biodiversity declines. How local ecological assemblages are responding is less clear--a concern given their importance for many ecosystem functions and services. We analysed a terrestrial assemblage database of unprecedented geographic and taxonomic coverage to quantify local biodiversity responses to land use and related changes. Here we show that in the worst-affected habitats, these pressures reduce within-sample species richness by an average of 76.5%, total abundance by 39.5% and rarefaction-based richness by 40.3%. We estimate that, globally, these pressures have already slightly reduced average within-sample richness (by 13.6%), total abundance (10.7%) and rarefaction-based richness (8.1%), with changes showing marked spatial variation. Rapid further losses are predicted under a business-as-usual land-use scenario; within-sample richness is projected to fall by a further 3.4% globally by 2100, with losses concentrated in biodiverse but economically poor countries. Strong mitigation can deliver much more positive biodiversity changes (up to a 1.9% average increase) that are less strongly related to countries' socioeconomic status.


Assuntos
Biodiversidade , Atividades Humanas , Animais , Conservação dos Recursos Naturais/tendências , Ecologia/tendências , História do Século XVI , História do Século XVII , História do Século XVIII , História do Século XIX , História do Século XX , História do Século XXI , Modelos Biológicos , Dinâmica Populacional , Especificidade da Espécie
11.
Arch Sex Behav ; 50(4): 1743-1754, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33236275

RESUMO

Although pre-exposure prophylaxis (PrEP) is a key tool in HIV prevention efforts, little is known about PrEP as a prevention strategy for criminal justice-involved (CJI) women. The purpose of this study was to examine multilevel factors shaping PrEP awareness and acceptability among CJI women. Between January 2017 and December 2017, we conducted 52 interviews with CJI women at high risk for HIV and stakeholders from the criminal justice (CJ) and public health (PH) systems. Interviews explored awareness of PrEP and the multilevel factors shaping PrEP acceptability. Data were analyzed using inductive thematic analysis and executive summaries. Atlas.ti facilitated analyses. The majority of CJI women (n = 27) were, on average, 41.3 years, from racial and ethnic minority groups (56% Black/African-American; 19% Latinx) and reported engaging in recent high-risk behavior (nearly 60% engaged in transactional sex, 22% reported ≥ 4 sexual partners, and 37% reported injection drug use). Of system stakeholders (n = 25), 52% represented the CJ sector. Although CJI women were generally unaware of PrEP, attitudes toward PrEP were enthusiastic. Barriers to PrEP acceptability included medication side effects (individual level); distrust in HIV prevention mechanisms (community level); lack of local HIV prevention efforts among high-risk women (public policy/HIV epidemic stage level). Factors promoting PrEP included perceived HIV risk (individual level); PrEP being an HIV prevention method that women can control without partner negotiation (social and sexual network level); and availability of public health insurance (community level). Despite low awareness of PrEP, CJI women expressed positive attitudes toward PrEP. To improve PrEP access for CJI women, implementation efforts should address barriers and leverage facilitators across multiple levels to be maximally effective.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Profilaxia Pré-Exposição , Fármacos Anti-HIV/uso terapêutico , Atitude , Direito Penal , Etnicidade , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Grupos Minoritários
12.
Proc Biol Sci ; 287(1928): 20200533, 2020 06 10.
Artigo em Inglês | MEDLINE | ID: mdl-32486986

RESUMO

Global forest assessments use forest area as an indicator of biodiversity status, which may mask below-canopy pressures driving forest biodiversity loss and 'empty forest' syndrome. The status of forest biodiversity is important not only for species conservation but also because species loss can have consequences for forest health and carbon storage. We aimed to develop a global indicator of forest specialist vertebrate populations to improve assessments of forest biodiversity status. Using the Living Planet Index methodology, we developed a weighted composite Forest Specialist Index for the period 1970-2014. We then investigated potential correlates of forest vertebrate population change. We analysed the relationship between the average rate of change of forest vertebrate populations and satellite-derived tree cover trends, as well as other pressures. On average, forest vertebrate populations declined by 53% between 1970 and 2014. We found little evidence of a consistent global effect of tree cover change on forest vertebrate populations, but a significant negative effect of exploitation threat on forest specialists. In conclusion, we found that the forest area is a poor indicator of forest biodiversity status. For forest biodiversity to recover, conservation management needs to be informed by monitoring all threats to vertebrates, including those below the canopy.


Assuntos
Biodiversidade , Florestas , Vertebrados , Animais , Conservação dos Recursos Naturais , Árvores
13.
Sex Transm Dis ; 47(2): 88-95, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31934955

RESUMO

BACKGROUND: Pre-exposure prophylaxis (PrEP) for individuals at significant risk for Human Immunodeficiency Virus acquisition is approved for individuals weighing at least 35 kg by the Food and Drug Administration. This cross-sectional study analyzed indications for PrEP in a clinical setting. METHODS: There were 429 charts reviewed from adolescents between 15 and 21 years old seen for preventive care visits at an adolescent primary care center in the Deep South during a 1-year timeframe. Univariate and multivariable regression analyses were completed to identify factors associated with indications for PrEP. RESULTS: Forty-four percent of 429 adolescents (between 15 and 21 years) had a PrEP indication; 77% were women and 95% heterosexual. Significant factors associated with an indication for PrEP included living with a nonparent or nonrelative and polysubstance use. No adolescents with an indication for PrEP were prescribed PrEP. A sensitivity analysis comparing indications for PrEP between the 2014 and 2017 The Centers for Disease Control and Prevention Guidelines revealed no significant differences in percent with an indication (44.5% vs. 42.8%) or factors associated with indications. CONCLUSIONS: Pre-exposure prophylaxis as a biomedical tool for adolescents and young adults (AYAs) may remain underutilized. A key factor in improving utilization involves providers being able to recognize AYAs who may have an indication for PrEP with a specific focus on those AYAs who do not live in households with parents or a surrogate family member and those who are polysubstance users.


Assuntos
Assistência Ambulatorial/estatística & dados numéricos , Infecções por HIV/prevenção & controle , Profilaxia Pré-Exposição/estatística & dados numéricos , Adolescente , Medicina do Adolescente/métodos , Alabama , Fármacos Anti-HIV/administração & dosagem , Estudos Transversais , Usuários de Drogas , Feminino , HIV/efeitos dos fármacos , Infecções por HIV/epidemiologia , Heterossexualidade , Humanos , Masculino , Atenção Primária à Saúde/métodos , Inquéritos e Questionários , Adulto Jovem
14.
Glob Chang Biol ; 25(8): 2763-2778, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31009149

RESUMO

Nations have committed to ambitious conservation targets in response to accelerating rates of global biodiversity loss. Anticipating future impacts is essential to inform policy decisions for achieving these targets, but predictions need to be of sufficiently high spatial resolution to forecast the local effects of global change. As part of the intercomparison of biodiversity and ecosystem services models of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, we present a fine-resolution assessment of trends in the persistence of global plant biodiversity. We coupled generalized dissimilarity models, fitted to >52 million records of >254 thousand plant species, with the species-area relationship, to estimate the effect of land-use and climate change on global biodiversity persistence. We estimated that the number of plant species committed to extinction over the long term has increased by 60% globally between 1900 and 2015 (from ~10,000 to ~16,000). This number is projected to decrease slightly by 2050 under the most optimistic scenario of land-use change and to substantially increase (to ~18,000) under the most pessimistic scenario. This means that, in the absence of climate change, scenarios of sustainable socio-economic development can potentially bring extinction risk back to pre-2000 levels. Alarmingly, under all scenarios, the additional impact from climate change might largely surpass that of land-use change. In this case, the estimated number of species committed to extinction increases by 3.7-4.5 times compared to land-use-only projections. African regions (especially central and southern) are expected to suffer some of the highest impacts into the future, while biodiversity decline in Southeast Asia (which has previously been among the highest globally) is projected to slow down. Our results suggest that environmentally sustainable land-use planning alone might not be sufficient to prevent potentially dramatic biodiversity loss, unless a stabilization of climate to pre-industrial times is observed.


Assuntos
Biodiversidade , Ecossistema , Mudança Climática , Conservação dos Recursos Naturais , Previsões , Plantas
15.
Conserv Biol ; 33(6): 1360-1369, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-30941815

RESUMO

To inform governmental discussions on the nature of a revised Strategic Plan for Biodiversity of the Convention on Biological Diversity (CBD), we reviewed the relevant literature and assessed the framing of the 20 Aichi Biodiversity Targets in the current strategic plan. We asked international experts from nongovernmental organizations, academia, government agencies, international organizations, research institutes, and the CBD to score the Aichi Targets and their constituent elements against a set of specific, measurable, ambitious, realistic, unambiguous, scalable, and comprehensive criteria (SMART based, excluding time bound because all targets are bound to 2015 or 2020). We then investigated the relationship between these expert scores and reported progress toward the target elements by using the findings from 2 global progress assessments (Global Biodiversity Outlook and the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services). We analyzed the data with ordinal logistic regressions. We found significant positive relationships (p < 0.05) between progress and the extent to which the target elements were perceived to be measurable, realistic, unambiguous, and scalable. There was some evidence of a relationship between progress and specificity of the target elements, but no relationship between progress and ambition. We are the first to show associations between progress and the extent to which the Aichi Targets meet certain SMART criteria. As negotiations around the post-2020 biodiversity framework proceed, decision makers should strive to ensure that new or revised targets are effectively structured and clearly worded to allow the translation of targets into actionable policies that can be successfully implemented nationally, regionally, and globally.


Relación de las Características de los Objetivos Mundiales de Biodiversidad con el Progreso Reportado Resumen Para informar las discusiones gubernamentales sobre la naturaleza de una revisión del Plan Estratégico para la Biodiversidad del Convenio sobre la Diversidad Biológica (CBD, en inglés), revisamos la literatura relevante y evaluamos el marco de 20 Objetivos de Biodiversidad de Aichi en el plan estratégico actual. Le pedimos a expertos internacionales de organizaciones no gubernamentales, de la academia, de agencias gubernamentales, organizaciones internacionales, de institutos de investigación y de la CBD que puntuaran los Objetivos de Aichi y sus elementos constituyentes frente a un conjunto de criterios específicos, medibles, ambiciosos, realistas (basados en SMART [las iniciales en inglés] y excluyendo aquellos limitados por el tiempo, pues todos los objetivos están limitados al 2015 o al 2020), inequívocos, expansibles y completos (excluyendo aquellos limitados por el tiempo). Después investigamos la relación entre los puntajes de estos expertos y el progreso reportado hacia los elementos objetivo usando los resultados de dos valoraciones mundiales del progreso (el Pronóstico Mundial de la Biodiversidad y la Plataforma Intergubernamental de Ciencia y Política sobre la Biodiversidad y los Servicios Ambientales). Analizamos los datos con regresiones logísticas ordinales. Encontramos relaciones positivas significativas (p < 0.05) entre el progreso y el alcance al que fueron percibidos como medibles, realistas, inequívocos y expansibles los elementos objetivo. Hubo algo de evidencia de la relación entre el progreso y la ambición. Somos los primeros en mostrar las asociaciones entre el progreso y la extensión hasta la que los Objetivos de Aichi cumplen con ciertos criterios SMART. Conforme proceden las negociaciones en torno al marco de trabajo de biodiversidad post-2020, quienes toman las decisiones deberían esforzarse por asegurar que los objetivos nuevos o revisados estén estructurados efectivamente y redactados claramente para permitir la traducción de los objetivos hacia políticas factibles que puedan implementarse exitosamente a nivel nacional, regional y mundial.


Assuntos
Conservação dos Recursos Naturais , Ecossistema , Biodiversidade
16.
Proc Biol Sci ; 281(1792)2014 Oct 07.
Artigo em Inglês | MEDLINE | ID: mdl-25143038

RESUMO

Habitat loss and degradation, driven largely by agricultural expansion and intensification, present the greatest immediate threat to biodiversity. Tropical forests harbour among the highest levels of terrestrial species diversity and are likely to experience rapid land-use change in the coming decades. Synthetic analyses of observed responses of species are useful for quantifying how land use affects biodiversity and for predicting outcomes under land-use scenarios. Previous applications of this approach have typically focused on individual taxonomic groups, analysing the average response of the whole community to changes in land use. Here, we incorporate quantitative remotely sensed data about habitats in, to our knowledge, the first worldwide synthetic analysis of how individual species in four major taxonomic groups--invertebrates, 'herptiles' (reptiles and amphibians), mammals and birds--respond to multiple human pressures in tropical and sub-tropical forests. We show significant independent impacts of land use, human vegetation offtake, forest cover and human population density on both occurrence and abundance of species, highlighting the value of analysing multiple explanatory variables simultaneously. Responses differ among the four groups considered, and--within birds and mammals--between habitat specialists and habitat generalists and between narrow-ranged and wide-ranged species.


Assuntos
Biodiversidade , Florestas , Modelos Teóricos , Clima Tropical , Agricultura/métodos , Animais , Ecossistema , Humanos , Densidade Demográfica , Imagens de Satélites
17.
Curr Opin Pediatr ; 26(4): 460-5, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24905102

RESUMO

PURPOSE OF REVIEW: Primary focal hyperhidrosis is a common condition that negatively impacts quality of life for many pediatric patients and can be challenging to treat. Standard treatments for hyperhidrosis can be used with success in many patients, and newer therapies and techniques offer options that have demonstrated efficacy and safety. This review highlights standard therapies for primary focal hyperhidrosis as well as the most recent technique advancements and alternative treatment options. RECENT FINDINGS: The standard approach to treating primary focal hyperhidrosis remains initiation of topical preparations, followed by advancement to systemic medications, local administration of medication and/or surgical procedures. Recent studies focus on enhancing tolerability of topical preparations as well as evaluating the efficacy of neuromodulator injections, oral anticholinergic medications and laser therapy. Microwave technology has also been introduced for the treatment of focal hyperhidrosis with promising results. SUMMARY: Many therapies exist for hyperhidrosis, and each treatment plan must be evaluated on a patient-by-patient basis. Advances in standard therapies and emergence of new treatment techniques are the main emphases of current published literature on hyperhidrosis. This article presents recent therapeutic options as well as updates on more established strategies to help practitioners treat this challenging condition.


Assuntos
Compostos de Alumínio/uso terapêutico , Toxinas Botulínicas Tipo A/uso terapêutico , Antagonistas Colinérgicos/uso terapêutico , Hiperidrose/terapia , Iontoforese/métodos , Neurotransmissores/uso terapêutico , Qualidade de Vida , Administração Tópica , Adolescente , Adulto , Criança , Humanos , Hiperidrose/psicologia , Seleção de Pacientes , Fitoterapia/métodos , Guias de Prática Clínica como Assunto , Resultado do Tratamento
18.
Int J STD AIDS ; 35(1): 11-17, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37678958

RESUMO

Background: As compared to their older peers, youth with HIV (YWH) are less likely to attain viral suppression and have higher rates of sexually transmitted infections (STI). In this exploratory study, we examine the relationship between HIV viral suppression, STI testing, and STI diagnosis among YWH receiving care at a clinic in the southern United States.Methods: Data from 933 clinical visits (2017-2020) were aggregated into singular patient records for YWH aged 10-24 years in Alabama (N = 139). Analyses included univariate generalized linear mixed models performed with the PROC GLIMMIX procedure approximating the marginal likelihood by using Laplace's method.Results: Sample median age was 22 years at the index visit. Most YWH were 20-24 years old (69.1%), male (67.6%), and identified as Black (77%); 58.3% were virally unsuppressed at index visit. YWH who identified as White or of other races had 4.79 times higher odds of being virally suppressed as compared to Black YWH (p < .01); STI testing behavior and STI positive diagnosis were associated with lower odds of being virally suppression.Conclusions: Findings suggest that among YWH, receiving STI testing and having an STI diagnosis is associated with a lack of viral suppression, suggesting that extra efforts may be necessary to support YWH who have an STI to attain suppression. Research is needed to examine individual behaviors, structural forces, and clinic features that could impact STI care engagement, specifically among unsuppressed YWH.


Assuntos
Infecções por HIV , Infecções Sexualmente Transmissíveis , Masculino , Adolescente , Humanos , Estados Unidos/epidemiologia , Adulto Jovem , Adulto , Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , Infecções por HIV/complicações , Carga Viral , Infecções Sexualmente Transmissíveis/diagnóstico , Infecções Sexualmente Transmissíveis/epidemiologia , Infecções Sexualmente Transmissíveis/complicações , Alabama/epidemiologia , Programas de Rastreamento
19.
Open Forum Infect Dis ; 11(3): ofae086, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38440303

RESUMO

Gaps in knowledge remain related to understanding missed human immunodeficiency virus (HIV) visits and youth with HIV (YWH). This study examined data from an Alabama academic HIV clinic with clients aged 16 to 24 years old and found that non virally suppressed and older YWH were associated with missed visits among YWH.

20.
BMC Res Notes ; 17(1): 97, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38561785

RESUMO

BACKGROUND: Newer antiretrivirals (ART) have shifted the metabolic experiences of people with HIV (PWH) from those of wasting syndrome to increases in body mass index (BMI). This study sought to examine the relationship between BMI and ART use among youth with HIV (YWH). METHODS: Charts from YWH ages 10-24 with at least two documented BMIs at least 6 months apart between 2017 and 2020 were included (N = 44). Statistical analyses were conducted in SAS 9.4. RESULTS: Clients were predominately African American (66%) males (73%) aged 19-24 years (64%), with men having sex with men (48%) being the most common mode of transmission. YWH on non-integrase inhibitor (INSTI) regimens had greater absolute increases in BMI compared to those on INSTI regimens (p = 0.03). Fourteen percent of clients using INSTI experienced an increase in BMI class from normal to overweight or overweight to obese; no non-INSTI users changed BMI class. Time since diagnosis and BMI change due to weight gain were positively associated (p = 0.03) among behaviorally-acquired YWH. CONCLUSIONS: Increasing BMI and changing BMI classes may be more likely among YWH using INSTI. More longitudinal studies inclusive of diet and exercise profiles are needed to understand the relationship between INSTI and YWH BMI.


Assuntos
Infecções por HIV , Inibidores de Integrase de HIV , Masculino , Humanos , Adolescente , Feminino , Sobrepeso/epidemiologia , Índice de Massa Corporal , Infecções por HIV/epidemiologia , Infecções por HIV/tratamento farmacológico , Obesidade/epidemiologia , Obesidade/tratamento farmacológico , Aumento de Peso , Inibidores de Integrase de HIV/uso terapêutico
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