Cyclopentadienyl cations.

This perspective covers the chemistry of cyclopentadienyl cations from the first synthetic attempts generating transient variants to their successful isolation earlier this year. They are highly reactive species that researchers struggled to isolate and characterize that stifled efforts to explore their reactivity. The recent isolation of a cyclopentadienyl cation enabled characterization and reactivity studies that make this an exciting time in the area that will undoubtedly inspire research in cyclic four π-electron systems.

Harnessing defective interfering particles and lipid nanoparticles for effective delivery of an anti-dengue virus RNA therapy.

Currently, no approved antiviral drugs target dengue virus (DENV) infection, leaving treatment reliant on supportive care. DENV vaccine efficacy varies depending on the vaccine type, the circulating serotype, and vaccine coverage. We investigated defective interfering particles (DIPs) and lipid nanoparticles (LNPs) to deliver DI290, an anti-DENV DI RNA.

Global Disparities in Outcomes of Pregnant Individuals With Rheumatic Heart Disease: A Scoping Review.

Background: Rheumatic heart disease (RHD) remains as 1 of the major contributors to indirect pregnancy-related mortality and morbidity worldwide and disproportionately affects marginalized populations.

Objectives: In this scoping review, the authors sought to explore the socioeconomic, cultural, and health care access-related causes of global disparities in outcomes of pregnancy among individuals with RHD.

Methods: We performed a literature search of all studies published between January 1, 1990, and January 1, 2022, that investigated causes for disparate outcomes in pregnant individuals with RHD.

Preference for HIV Pre-exposure Prophylaxis Access Among Men who Have Sex With Men in China: A Discrete Choice Experiment.

Background: HIV pre-exposure prophylaxis (PrEP) is highly effective but not widely used by men who have sex with men (MSM; 27%) in China.

Methods: In June 2023, an online cross-sectional survey with a discrete choice experiment (DCE) was distributed to PrEP-eligible MSM in China who were at least 18 years old. The DCE explored attributes of PrEP modality (daily pill, on-demand pill, injections, implants), clinical care model (same-day, 2-visit, telehealth prescription), medication pickup (clinic, community health center, pharmacy, MSM-focused community-based organization, home delivery), enhanced support (self-management, smartphone app, text reminder, anonymous peer support group), and cost.

A reference genome for the eastern bettong (Bettongia gaimardi).

The eastern or Tasmanian bettong ( ) is one of four extant bettong species and is listed as 'Near Threatened' by the IUCN. We sequenced short read data on the 10x system to generate a reference genome 3.46Gb in size and contig N50 of 87.

Inter-assay variability in the measurement of urinary C-terminal cross-linked telopeptide of type II collagen following anterior cruciate ligament reconstruction.

Objective: To compare urinary C-terminal cross-linked telopeptide of type II collagen (u-CTX-II) concentrations and trends as measured by two different commercially available enzyme-linked immunosorbent assays (ELISA) in a cohort of patients in the first year following anterior cruciate ligament (ACL) reconstruction.

Design: 22 ACL-injured patients undergoing reconstructive surgery (mean age 25.2 (SD 8.

Reticulocyte Binding Protein Homologue 5 is a target of balancing selection in the population of Papua New Guinea.

Reticulocyte Binding Protein Homologue (RH5), a leading malaria vaccine candidate, is essential for erythrocyte invasion by the parasite, interacting with the human host receptor, basigin. RH5 has a small number of polymorphisms relative to other blood-stage antigens, and studies have shown that vaccine-induced antibodies raised against RH5 are strain-transcending, however most studies investigating RH5 diversity have been done in Africa. Understanding the genetic diversity and evolution of malaria antigens in other regions is important for their validation as vaccine candidates.

Estimating cumulative infection rate of COVID-19 after adjusting the dynamic zero-COVID policy in China.

Background: At the end of 2022, China adjusted its coronavirus disease 2019 (COVID-19) prevention and control strategy. How this adjustment affected the cumulative infection rate is debated, and how second booster dose vaccination affected the pandemic remains unclear.

Methods: We collected COVID-19 case data for China's mainland from December 7, 2022, to January 7, 2023, reported by the World Health Organization.

Does a biological invasion modify host immune responses to parasite infection?

Biological invasions can disrupt the close and longstanding coevolved relationships between host and parasites. At the same time, the shifting selective forces acting on demography during invasion can result in rapid evolution of traits in both host and parasite. Hosts at the invasion front may reduce investment into costly immune defences and redistribute those resources to other fitness-enhancing traits.

Socioeconomic correlates of urban mobility trends in two Australian cities during transitional periods of the COVID-19 pandemic.

During the COVID-19 pandemic, both government-mandated lockdowns and discretionary changes in behaviour combined to produce dramatic and abrupt changes to human mobility patterns. To understand the socioeconomic determinants of intervention compliance and discretionary behavioural responses to epidemic threats, we investigate whether changes in human mobility showed a systematic variation by socioeconomic status during two distinct periods of the COVID-19 pandemic in Australia. We analyse mobility data from two major urban centres and compare the trends during mandated stay-at-home policies and after the full relaxation of nonpharmaceutical interventions, which coincided with a large surge of COVID-19 cases.

Quantifying animal social behaviour with ecological field methods.

Field studies of social behaviour are challenging due to the need to record or infer interactions between multiple individuals, often under suboptimal environmental conditions or with potential disturbance by observers. Due to the limited field techniques available, we present a novel method to quantify social behaviours in the field by comparing the counts of individuals caught in traps across multiple locations sampled simultaneously. The distribution of individuals between traps gives the extent of aggregation, and phenotypic data allow for inference of non-random assortment.

Long-term outcomes of patients who received extracorporeal cardiopulmonary resuscitation (ECPR) following in-hospital cardiac arrest: Analysis of EXCEL registry data.

Objective: To describe the six-month functional outcomes of patients who received extracorporeal cardiopulmonary resuscitation (ECPR) following in-hospital cardiac arrest (IHCA) in Australia.

Design: Secondary analysis of EXCEL registry data.

Setting: EXCEL is a high-quality, prospective, binational registry including adult patients who receive extracorporeal membrane oxygenation (ECMO) in Australia and New Zealand.

Translation, cross-cultural adaptation and validation of the universal Welch Emotional Connection Screen using primary and bilingual Spanish-speaking coders of videotaped mother-child interactions.

Introduction: Using clear explicit translatable language, we translated the Welch Emotional Connection Screen into a new universal language instrument, the . In this study, we had two aims: Aim 1 was to establish of the uWECS by comparing scores coded by primary Spanish-speaking coders using the Spanish translation of the uWECS to scores coded by bilingual, secondary Spanish-speaking coders using the oWECS. Aim 2 was to establish the in terms of oWECS and uWECS performance in tracking change in autonomic emotional connection (AEC) during the course of an intervention among preschool aged children.

in enhancing the effect of defactinib on gastric cancer cells via the inhibition of FAK phosphorylation.

Background: Chromosome segregation 1 like () overexpression can promote proliferation and migration in cancer. In previous study, we found that CSE1L expression was higher in gastric cancer (GC) tissues compared to normal tissues. However, the biological function and molecular mechanism of CSE1L in GC remains unclear.

From skin to heart: The rare journey of pleomorphic dermal sarcoma metastasis.

Cardiac tumours can be classified as neoplastic or non-neoplastic, with secondary tumours being significantly more common than primary ones. Among secondary tumours, melanoma has the highest propensity for cardiac involvement. Pleomorphic dermal sarcoma (PDS) is a rare skin neoplasm, with an estimated metastatic risk of 10% to 20%.

Prevalence of clinical malaria and associated symptoms in pregnant women at Hamusit health center, Northwest Ethiopia.

Background: Malaria is the disease caused by intracellular parasites known as species and is mainly transmitted by blood sucking female mosquitoes. During pregnancy, malaria results in severe complications to the mother, the fetus and the newborn. Symptoms of malaria, such as fever, malaise, headache, nausea and vomiting, in pregnant women can be mistakenly attributed solely to pregnancy.

Consumer attitudes, barriers and facilitators to sharing clinical data for research purposes: Results from a focus group synthesis.

Current research into the digital healthcare landscape reveals a significant gap in understanding the perspectives of consumers with lived health experiences on sharing their health data for research purposes. Despite the substantial value that such shared information can bring to healthcare research, policy development, and system improvement, insights into the attitudes and willingness of these consumers towards data sharing remain sparse. This study seeks to fill this gap, exploring the unique views of these individuals and assessing the potential benefits their data sharing could contribute to healthcare.

Layer-specific biomechanical and histological properties of normal and dissected human ascending aortas.

Recent studies have attempted to characterize the layer-specific mechanical and microstructural properties of the aortic tissues in either normal or pathological state to understand its structural-mechanical property relationships. However, layer-specific tissue mechanics and compositions of normal and dissected ascending aortas have not been thoroughly compared with a statistical conclusion obtained. Eighteen ascending aortic specimens were harvested from 13 patients with type A aortic dissection and 5 donors without aortic diseases, with each specimen further excised to obtain three tissue samples including an intact wall, an intima-media layer and an adventitia layer.

Haemodynamic management of septic shock.

Septic shock is a significant challenge in the management of patients with burns and traumatic injuries when complicated by infection, necessitating prompt and effective haemodynamic support. This review provides a comprehensive overview of current strategies for vasopressor and fluid management in septic shock, with the aim to optimize patient outcomes. With regard to vasopressor management, we elaborate on the pharmacologic profiles and clinical applications of catecholamines, vasopressin derivatives, angiotensin II, and other vasoactive agents.

Lipid-mediated resolution of inflammation and survival in amyotrophic lateral sclerosis.

Neuroinflammation impacts on the progression of amyotrophic lateral sclerosis (ALS), a fatal neurodegenerative disorder. Specialized pro-resolving mediators trigger the resolution of inflammation. We investigate the specialized pro-resolving mediator blood profile and their receptors' expression in peripheral blood mononuclear cells in relation to survival in ALS.

Trends in functional limitations among middle-aged and older adults in the Asia-Pacific: survey evidence from 778,507 observations across six countries.

Background: There are few studies comparing health status trends among middle-aged and older adults in countries currently experiencing a rapid demographic and economic transition in the Asia-Pacific, relative to their high-income regional counterparts. This study investigates trends in functional limitations among individuals aged 45 years and above in six major Asia-Pacific countries, ranging from middle- to high-income, from 2001 to 2019 and examines disparities across socioeconomic and demographic sub-groups.

Methods: Data on 778,507 individuals from seven surveys in three high-income countries (Australia, Japan, South Korea) and three middle-income countries (China, Indonesia, and India) were used.