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A series of biobased aliphatic-aromatic copolyesters, poly(pentylene dodecanoate-co-furandicarboxylates) (PPeDFs) were synthesized via an esterification and polycondensation melt process. The copolyesters were characterized using gel permeation chromatography, Fourier transform infrared spectroscopy, [sup.1]H NMR spectroscopy, differential scanning calorimetry, thermogravimetric analysis, wide angle x-ray scattering, and tensile testing. The thermal transition behavior was strongly dependent on composition, with the melting and glass transition temperatures reaching a minimum at approximately equimolar ratio of D to F. All copolyesters were stable below 300[degrees] C with their [R.sub.600] (the weight of material remaining at 600[degrees]C) values increasing with F fraction. PPeD to PPeDF30 (e.g., mole ratio DIF = 7:3) show sharp PPeD crystalline reflections only while broad PPeF reflections are shown in PPeF and PPeDF90. PPeDF40 to PPeDF80 showed both crystal structures. The fractional crystallinity for the PPeD was much higher than PPeF and the fractional crystallinity of the copolymers showed a minimum at D/F ratios closer to the latter. The stress at break and modulus both exhibited maxima at D/F ratios that were either high or low, but somewhat surprisingly a strong maximum in percent elongation at break of over 600% occurs at PPeDF40. For this composition, a typical plastic behavior curve was found including a yield point, high elongation at break, and strain hardening. Highlights * Poly(pentylene dodecanoate-co-furandicarboxylates) (PPeDFs) are synthesized * Mechanical properties, a function of D:F ratio. High elongation at 40 mol% F. * Two melting temperatures/crystal structures, one PPeD, the other PPeF * Glass transition temperature minimum at intermediate D:F ratios KEYWORDS dodecanedioic diacid, furandicarboxylic acid, pentanediol, polyesters, 1 | INTRODUCTION Furandicarboxylic acid (FDCA) based polyesters, because of their biobased and biodegradable characteristics, have gained significant attention in recent years due to their potential to replace traditional petrochemical-based [...]

Traditionally, most flexible food packaging is made of linear low-density polyethylene (LLDPE) which cannot easily be recycled, nor will it degrade in a reasonable timescale. In this work, a biobased biodegradable polyester alternative was investigated as a possible replacement for LLDPE. High molecular weight poly (pentylene adipate-co-terephthalate) with a 40/60 adipic acid/terephthalic acid mole ratio was synthesized using direct esterification and polycondensation. Glycerol and hexane-1,2,5,6-tetrol were added as branching agents to better match the structure of the LLDPE which in turn might help the ability of these materials in film-blowing. Thermal, mechanical, and rheological properties of the copolyesters were thoroughly investigated. All copolyesters had a weight-average molecular weight of over 140,000 g/mol, which is necessary for proper rheology, and were thermally stable up to 350[degrees] C. The addition of branching agents led to a slight decrease in crystallinity, d-spacing, melting temperature, enthalpy of melting, stress at break, and elongation at break. However, an increase in Young's modulus and complex viscosity at high frequency were observed compared to PPeAT60 without branching agent added. Although the improved crystallinity and mechanical properties of the copolyesters made them viable for film-blowing, the slow crystallization rate creates a major challenge. Highlights * Linear and branched poly(pentylene adipate-co-terephthalate) (PPeAT) synthesized. * Properties compared to commercial poly(butylene adipate-co-terephthalate) (PBAT). * Glass and melting temperatures comparable to commercial PBAT. * Extensional and shear viscosity comparable to commercial PBAT. * PPeAT stiffness is factor of 2 higher than PBAT; ultimate properties similar. KEYWORDS biodegradable, branched, PBAT, pentanediol, polyesters, 1 | INTRODUCTION Approximately 60% of household waste comes from single-use packaging. Due to the high cost of transport, processing and recycling of plastic packaging, it is simply more cost-effective [...]

Circoviruses are an emerging group of DNA viruses with largely unknown pathogenicity in humans (2,2). The best-studied circovirus is porcine circovirus 2, which causes hepatitis in pigs, among other diseases [...]

INTRODUCTION The ministerial exception is a doctrine born out of the Religion Clauses of the First Amendment that shields many religious institutions' employment decisions from review. While the ministerial exception [...]

Introduction Most kidney diseases are associated with the dysfunction of the glomerular filtration barrier (GFB), which comprises 3 layers, including the glomerular endothelial cells (GEC), the glomerular basement membrane (GBM) [...], Adeno-associated virus (AAV) is a promising in vivo gene delivery platform showing advantages in delivering therapeutic molecules to difficult or undruggable cells. However, natural AAV serotypes have insufficient transduction specificity and efficiency in kidney cells. Here, we developed an evolution-directed selection protocol for renal glomeruli and identified what we believe to be a new vector termed AAV2-GEC that specifically and efficiently targets the glomerular endothelial cells (GEC) after systemic administration and maintains robust GEC tropism in healthy and diseased rodents. AAV2-GEC-mediated delivery of IdeS, a bacterial antibody-cleaving proteinase, provided sustained clearance of kidney-bound antibodies and successfully treated antiglomerular basement membrane glomerulonephritis in mice. Taken together, this study showcases the potential of AAV as a gene delivery platform for challenging cell types. The development of AAV2-GEC and its successful application in the treatment of antibody-mediated kidney disease represents a significant step forward and opens up promising avenues for kidney medicine.

Biological and biomedical research using Drosophila melanogaster as a model organism has gained recognition through several Nobel prizes within the last 100 years. Drosophila exhibits several advantages when compared to other in vivo models such as mice and rats, as its life cycle is very short, animal maintenance is easy and inexpensive and a huge variety of transgenic strains and tools are publicly available. Moreover, more than 70% of human disease-causing genes are highly conserved in the fruit fly. Here, we explain the use of Drosophila in nephrology research and describe two kidney tissues, Malpighian tubules and the nephrocytes. The latter are the homologous cells to mammalian glomerular podocytes and helped to provide insights into a variety of signaling pathways due to the high morphological similarities and the conserved molecular make-up between nephrocytes and podocytes. In recent years, nephrocytes have also been used to study inter-organ communication as links between nephrocytes and the heart, the immune system and the muscles have been described. In addition, other tissues such as the eye and the reproductive system can be used to study the functional role of proteins being part of the kidney filtration barrier., Author(s): Sybille Koehler [sup.1] [sup.2] , Tobias B. Huber [sup.1] [sup.2] Author Affiliations: (1) https://ror.org/01zgy1s35, grid.13648.38, 0000 0001 2180 3484, III. Department of Medicine, University Medical Center Hamburg-Eppendorf, , Hamburg, [...]

Author(s): Eva Bänninger-Huber [sup.1] , Stefan Salvenauer [sup.1] Author Affiliations: (1) https://ror.org/054pv6659, grid.5771.4, 0000 0001 2151 8122, Institute of Psychology, University of Innsbruck, , Innrain 52, A-6020, Innsbruck, Austria For [...]

INTRODUCTION Dobbs v. Jackson Women's Health Organization held that no constitutional right to abortion exists, (1) overruling Roe v. Wade and Planned Parenthood of Southeastern Pennsylvania v. Casey. (2) After [...]

Since May 6, 2022, mpox (formerly monkeypox) cases have been reported across the globe. According to the Centers for Disease Control and Prevention (CDC), 85,115 confirmed mpox cases and 182 [...]

: Introduction: Differentiated service delivery (DSD) models aim to increase the responsiveness of HIV treatment programmes to the individual needs of antiretroviral therapy (ART) clients to improve treatment outcomes and quality of life. Little is known about how DSD client experiences differ from conventional care. Methods: From May to November 2021, we interviewed adult (≥18) ART clients at 21 primary clinics in four districts of South Africa. Participants were enrolled consecutively at routine visits and stratified into four groups: conventional care‐not eligible for DSD (conventional‐not‐eligible); conventional care eligible for but not enrolled in DSD (conventional‐not‐enrolled); facility pickup point DSD model; and external pickup point DSD model. Satisfaction was assessed using questions with 5‐point Likert‐scale responses. Mean scores were categorized as not satisfied (score ≤3) or satisfied (>3). We used logistic regression to assess differences and report crude and adjusted odds ratios (aORs). Qualitative themes were identified through content analysis. Results: Eight hundred and sixty‐seven participants (70% female, median age 39) were surveyed: 24% facility pick‐up points; 27% external pick‐up points; 25% conventional‐not‐eligible; and 24% conventional‐not‐enrolled. Seventy‐four percent of all study participants expressed satisfaction with their HIV care. Those enrolled in DSD models were more likely to be satisfied, with an aOR of 6.24 (95% CI [3.18–12.24]) for external pick‐up point versus conventional‐not‐eligible and an aOR of 3.30 (1.95–5.58) for facility pick‐up point versus conventional‐not‐eligible. Conventional‐not‐enrolled clients were slightly but not significantly more satisfied than conventional‐not‐eligible clients (1.29, 0.85–1.96). Those seeking outside healthcare (crude OR 0.57, 0.41–0.81) or reporting more annual clinic visits (0.52, 0.29–0.93) were less likely to be satisfied. Conventional care participants reporting satisfaction with their current model of care perceived providers as helpful, respectful, and friendly and were satisfied with care despite long queues. DSD model participants emphasized ease and convenience, particularly not having to queue. Conclusions: Most adult ART clients in South Africa were satisfied with their care, but those enrolled in DSD models expressed slightly greater satisfaction than those remaining in conventional care. Efforts should focus on enrolling more eligible patients into DSD models, expanding eligibility criteria to cover a wider client base, and further improving the models’ desirable characteristics., INTRODUCTION Like many countries in sub‐Saharan Africa and globally [1–4], South Africa has scaled up differentiated service delivery models (DSD) to improve HIV treatment coverage and outcomes, make treatment programmes [...]

Recent studies using cell type-specific knockout mouse models have improved our understanding of the pathophysiological relevance of suppressor of lin-12-like-HMG-CoA reductase degradation 1 (SEL1L- HRD1) endoplasmic reticulum- associated (ER-associated) degradation (ERAD); however, its importance in humans remains unclear, as no disease variant has been identified. Here, we report the identification of 3 biallelic missense variants of SEL1L and HRD1 (or SYVN1) in 6 children from 3 independent families presenting with developmental delay, intellectual disability, microcephaly, facial dysmorphisms, hypotonia, and/or ataxia. These SEL1L (p.Gly585Asp, p.Met528Arg) and HRD1 (p.Pro398Leu) variants were hypomorphic and impaired ERAD function at distinct steps of ERAD, including substrate recruitment (SEL1L p.Gly585Asp), SEL1L-HRD1 complex formation (SEL1L p.Met528Arg), and HRD1 activity (HRD1 p.Pro398Leu). Our study not only provides insights into the structure-function relationship of SEL1L-HRD1 ERAD, but also establishes the importance of SEL1L-HRD1 ERAD in humans., Introduction Nascent membrane or secretory proteins are synthesized and folded in the endoplasmic reticulum (ER), which is prone to misfolding. Such misfolding may have pathogenic consequences if not cleared effectively [...]

Market and climate chaos reveal electricity as a key site of struggle in the twenty-first century. The capitalist class and the Left are both split between capitalist utilities and unions on one side, and big tech, renewable capital, and green NGOs on the other. The socialist path is with labor., In February 2021, Winter Storm Uri froze much of Texas's electrical generation infrastructure, resulting in the grid operator imposing rolling blackouts on millions in freezing temperatures. The blackouts not only [...]

Introduction Women with pre-pregnancy diabetes or pre-pregnancy hypertension have increased risks of complications during pregnancy. Women who obtain prenatal care in the first trimester receive necessary routine testing and disease management tools that aid in controlling such conditions. However, research on the association between pre-pregnancy hypertension and pre-pregnancy diabetes and prenatal care timing among US women is limited. Methods This study used data from the 2018 National Vital Statistic System (n = 3,618,853). Trained personnel collected information on prenatal care timing, maternal conditions, and demographics. Multivariate logistic regression models evaluated the association between pre-pregnancy hypertension, pre-pregnancy diabetes and prenatal care timing. A stratified analysis was conducted to determine if race/ethnicity modified the associations. Results After adjustment, women with pre-pregnancy hypertension or pre-pregnancy diabetes had statistically significant increased odds of receiving early prenatal care compared to women without these conditions (OR 1.23; 95% CI: 1.21-1.26 and OR 1.27; 95% CI: 1.24-1.31, respectively). Among non-Hispanic White, non-Hispanic Black, and Hispanic women, those with pre-pregnancy hypertension or pre-pregnancy diabetes had statistically significantly increased odds of receiving early prenatal care compared to women without those pre-existing conditions (P < .001). Discussion Further research is needed on the transition from preconception care to obstetric care for women with pre-existing diabetes or hypertension. However, these findings suggest that women who have conditions that could cause pregnancy complications are pursuing early prenatal care services to mitigate the development of adverse maternal and infant health conditions., Author(s): Shanika Jerger Butts [sup.1] , Larissa R. Brunner Huber [sup.1] Author Affiliations: (1) grid.266859.6, 0000 0000 8598 2218, Department of Public Health Sciences, The University of North Carolina at [...]

Purpose: The purpose of this study was to examine the respiratory strategies used by persons with Parkinson's disease (PD) to support louder speech in response to two voice interventions. Contrasting interventions were selected to investigate the role of internal and external cue strategies on treatment outcomes. LSVT LOUD, which uses an internal cueing framework, and the SpeechVive prosthesis, which employs an external noise cue to elicit louder speech, were studied. Method: Thirty-four persons with hypophonia secondary to idiopathic PD were assigned to one of three groups: LSVT LOUD (n = 12), SpeechVive (n = 12), or a nontreatment clinical control (n = 10). The LSVt LOUD and SpeechVive participants received 8 weeks of voice intervention. Acoustic and respiratory kinematic data were simultaneously collected at pre-, mid- and posttreatment during a monologue speech sample. Intervention outcomes included sound pressure level (SPL), utterance length, lung volume initiation, lung volume termination, and lung volume excursion. Results: As compared to controls, the LSVT LOUD and SpeechVive participants significantly increased SPL at mid- and posttreatment, thus confirming a positive intervention effect. Treatment-related changes in speech breathing were further identified, including significantly longer utterance lengths (syllables per breath group) at mid- and posttreatment, as compared to pretreatment. The respiratory strategies used to support louder speech varied by group. The LSVT LOUD participants terminated lung volume at significantly lower levels at mid- and posttreatment, as compared to pretreatment. This finding suggests the use of greater expiratory muscle effort by the LSVT LOUD participants to support louder speech. Participants in the SpeechVive group did not significantly alter their respiratory strategies across the intervention period. Single-subject effect sizes highlight the variability in respiratory strategies used across speakers to support louder speech. Conclusions: This study provides emerging evidence to suggest that the LSVT LOUD and SpeechVive therapies elicit different respiratory adjustments in persons with pD. The study highlights the need to consider respiratory function when addressing voice targets in persons with PD., Motor impairment is a hallmark feature of Parkinson's disease (PD). The motor-based symptoms are characterized by reduced amplitude and speed of movement and difficulty initiating and coordinating movement (Morris et [...]

Since the beginning of the COVID-19 pandemic, hospitals have introduced infection prevention and control (IPC) measures to protect inpatients from SARS-CoV-2. Despite these precautions, healthcare-associated COVID-19 has affected a notable [...]

Purpose: A critical component to the development of any type of intervention to improve speech production in individuals with Parkinson's disease (PD) is a complete understanding of the speech impairments present at each stage of the disease and how these impairments change with disease progression. The purpose of this longitudinal study was to examine the impact of disease on speech production and speech breathing during an extemporaneous speech task in individuals with PD over the course of approximately 3.5 years. Method: Eight individuals with PD and eight age- and sex-matched control participants produced an extemporaneous connected speech task on two occasions (Time 1 and Time 2) an average of 3 years 7 months apart. Dependent variables included sound pressure level; utterance length; speech rate; lung volume initiation, termination, and excursion; and percent vital capacity per syllable. Results: From Time 1 to Time 2, individuals with PD demonstrated decreased utterance length and lung volume initiation, termination, and excursion and increased speech rate. Control participants demonstrated decreased utterance length and lung volume termination and increased lung volume excursion and percent vital capacity per syllable from Time 1 to Time 2. Conclusions: Changes in speech production and speech breathing variables experienced by individuals with PD over the course of several years are related to their disease process and not typical aging. Changes to speech breathing highlight the need to provide intervention focused on increasing efficient respiratory patterning for speech production., Speech impairment is a hallmark characteristic of Parkinson's disease (PD), with 70%-90% of individuals demonstrating speech impairment at some point in the disease process (Ho et al., 1999; Logemann et [...]