Publications by authors named "Zinn A"

Background: Adjuvant radiotherapy (RT) plays an essential role in the management of early breast cancer (BC), but can lead to cardiovascular and lung toxicities. RT in deep inspiration breath hold (DIBH) often allows better protection of organs at risk. This prospective study compares surface-guided DIBH with free breathing (FB) in patients with left-sided BC, by evaluating individual cardiovascular risks and treatment plan dosimetry.

View Article and Find Full Text PDF
Article Synopsis
  • Node-positive non-small cell lung cancer (NSCLC) presents treatment challenges for patients unsuitable for concurrent chemoradiotherapy, leading to a study on the prognostic value of pretreatment PET parameters in high-risk patients receiving hypofractionated radiotherapy.
  • A retrospective analysis of 42 patients from a single institution revealed median progression-free survival (PFS) of 11.5 months and overall survival (OS) of 24.3 months, with variables like SUVmax and ECOG performance status significantly predicting these outcomes.
  • Multivariable analysis highlighted SUVmax as a key predictor for PFS and ECOG performance status for OS, with patients in the high total metabolic tumor volume (tMTV) group experiencing significantly poorer
View Article and Find Full Text PDF

Purpose/objective: Currently, there are few prospective data on the tolerability of combining targeted therapies (TT) with radiation therapy (RT). The objective of this prospective study was to assess the feasibility and toxicity of pairing RT with concurrent TT in cancer patients. The aim was to enhance the existing evidence base for the simultaneous administration of targeted substances together with radiotherapy.

View Article and Find Full Text PDF

The standard treatment for locally advanced cervical cancer typically includes concomitant chemoradiation, a regimen known to induce severe hematologic toxicity (HT). Particularly, pelvic bone marrow dose exposure has been identified as a contributing factor to this hematologic toxicity. Chemotherapy further increases bone marrow suppression, often necessitating treatment interruptions or dose reductions.

View Article and Find Full Text PDF

Avoiding meat overconsumption is good for the environment and people's health. Changing meal names represents a simple, cost-effective way of increasing meat-free meal selection in restaurants. In the past, however, this approach has shown limited effectiveness.

View Article and Find Full Text PDF

Previous studies suggested that social identity switches are rapid and highly effective, raising the question of whether people can intentionally control such switches. In two studies, we tested if participants could exert top-down control to prevent a social identity switch triggered by the experimental context. In Study 1, participants (N = 198) were given a writing task aimed at prompting a switch from their parent identity to their feminist identity.

View Article and Find Full Text PDF

The continued proliferation of superbugs in hospitals and the coronavirus disease 2019 (COVID-19) has created an acute worldwide demand for sustained broadband pathogen suppression in households, hospitals, and public spaces. In response, we have created a highly active, self-sterilizing copper configuration capable of inactivating a wide range of bacteria and viruses in 30-60 seconds. The highly active material destroys pathogens faster than any conventional copper configuration and acts as quickly as alcohol wipes and hand sanitizers.

View Article and Find Full Text PDF

Purpose: We aimed to evaluate the advantages of magnetic resonance angiography (MRA)-planned prostatic artery embolization (PAE) for benign prostatic hyperplasia (BPH).

Methods: In this retrospective study, MRAs of 56 patients (mean age, 67.23±7.

View Article and Find Full Text PDF

The worldwide spread of a new coronavirus (SARS-CoV-2) since December 2019 has posed a severe threat to individuals' well-being. While the world at large is waiting that the released vaccines immunize most citizens, public health experts suggest that, in the meantime, it is only through behavior change that the spread of COVID-19 can be controlled. Importantly, the required behaviors are aimed not only at safeguarding one's own health.

View Article and Find Full Text PDF

X-linked reticulate pigmentary disorder (XLPDR, Mendelian Inheritance in Man #301220) is a rare syndrome characterized by recurrent infections and sterile multiorgan inflammation. The syndrome is caused by an intronic mutation in POLA1, the gene encoding the catalytic subunit of DNA polymerase-α (Pol-α), which is responsible for Okazaki fragment synthesis during DNA replication. Reduced POLA1 expression in this condition triggers spontaneous type I interferon expression, which can be linked to the autoinflammatory manifestations of the disease.

View Article and Find Full Text PDF
Article Synopsis
  • A unique male with a dicentric Y chromosome was studied to compare his physical and cognitive characteristics to those of males with the 47,XYY chromosome arrangement, known to be linked to certain behavioral and autism risk factors.
  • This male showed tall stature and typical cognitive function with no signs of autism, despite having increased expression of some Y chromosome genes and not expressing the gene NLGN4Y which is thought to affect autism risk.
  • The findings suggest that the lack of NLGN4Y expression could be important in preventing autism symptoms, indicating a need for more research on NLGN4Y's role in autism risk in males with XYY abnormalities.
View Article and Find Full Text PDF

Focal adhesions (FA) are a complex network of proteins that allow the cell to form physical contacts with the extracellular matrix (ECM). FA assemble and disassemble in a dynamic process, orchestrated by a variety of cellular components. However, the underlying mechanisms that regulate adhesion turnover remain poorly understood.

View Article and Find Full Text PDF

A fundamental question in the biology of sex differences has eluded direct study in humans: How does sex-chromosome dosage (SCD) shape genome function? To address this, we developed a systematic map of SCD effects on gene function by analyzing genome-wide expression data in humans with diverse sex-chromosome aneuploidies (XO, XXX, XXY, XYY, and XXYY). For sex chromosomes, we demonstrate a pattern of obligate dosage sensitivity among evolutionarily preserved X-Y homologs and update prevailing theoretical models for SCD compensation by detecting X-linked genes that increase expression with decreasing X- and/or Y-chromosome dosage. We further show that SCD-sensitive sex-chromosome genes regulate specific coexpression networks of SCD-sensitive autosomal genes with critical cellular functions and a demonstrable potential to mediate previously documented SCD effects on disease.

View Article and Find Full Text PDF

Based on a 5-wave panel survey of 732 foster youth, the current study examined the respective relationships between foster youths' individual characteristics, youths' social connections with individuals and formal institutions, and the development of perceived social support across the transition to adulthood. Several youth characteristics - including self-reported delinquency and attachment insecurity - were found to be statistically significantly associated with perceived social support. Attachment insecurity also appeared to mediate the relationships between social support and several other youth-level characteristics, including prior placement disruptions and placement with relatives.

View Article and Find Full Text PDF

Circular dorsal ruffles (CDRs) are actin-rich structures that form on the dorsal surface of many mammalian cells in response to growth factor stimulation. CDRs represent a unique type of structure that forms transiently and only once upon stimulation. The formation of CDRs involves a drastic rearrangement of the cytoskeleton, which is regulated by the Rho family of GTPases.

View Article and Find Full Text PDF
Article Synopsis
  • Typical centrioles are made of microtubules and usually exist in pairs within animal cells for division, originating from the zygote, which typically has only one centriole from sperm.
  • A recent discovery identifies a second centriolar structure called the proximal centriole-like structure (PCL) in the sperm of certain insects that is critical for zygote function.
  • In the red flour beetle, electron microscopy shows a microtubule-based centriole and a PCL-like structure during sperm development, indicating the presence of both types of centrioles.
View Article and Find Full Text PDF

One of the hallmarks of cancer is the ability of tumor cells to invade surrounding tissues and metastasize. During metastasis, cancer cells degrade the extracellular matrix, which acts as a physical barrier, by developing specialized actin-rich membrane protrusion structures called invadopodia. The formation of invadopodia is regulated by Rho GTPases, a family of proteins that regulates the actin cytoskeleton.

View Article and Find Full Text PDF

Short stature homeobox gene (SHOX) is located in the pseudoautosomal region 1 of the sex chromosomes. It encodes a transcription factor implicated in the skeletal growth. Point mutations, deletions or duplications of SHOX or its transcriptional regulatory elements are associated with two skeletal dysplasias, Léri-Weill dyschondrosteosis (LWD) and Langer mesomelic dysplasia (LMD), as well as in a small proportion of idiopathic short stature (ISS) individuals.

View Article and Find Full Text PDF

Glutaric aciduria type I (GA-I) is an autosomal recessive organic aciduria resulting from a functional deficiency of glutaryl-CoA dehydrogenase, encoded by GCDH. Two clinically indistinguishable diagnostic subgroups of GA-I are known; low and high excretors (LEs and HEs, respectively). Early medical and dietary interventions can result in significantly better outcomes and improved quality of life for patients with GA-I.

View Article and Find Full Text PDF

In operando SECM is employed to monitor the evolution of the electrically insulating character of a Si electrode surface during (de-)lithiation. The solid-electrolyte interface (SEI) formed on Si electrodes is shown to be intrinsically electrically insulating. However, volume changes upon (de-)lithiation lead to the loss of the protecting character of the initially formed SEI.

View Article and Find Full Text PDF

Aberrant nucleic acids generated during viral replication are the main trigger for antiviral immunity, and mutations that disrupt nucleic acid metabolism can lead to autoinflammatory disorders. Here we investigated the etiology of X-linked reticulate pigmentary disorder (XLPDR), a primary immunodeficiency with autoinflammatory features. We discovered that XLPDR is caused by an intronic mutation that disrupts the expression of POLA1, which encodes the catalytic subunit of DNA polymerase-α.

View Article and Find Full Text PDF

The solid electrolyte interphase (SEI) film formed at the surface of negative electrodes strongly affects the performance of a Li-ion battery. The mechanical properties of the SEI are of special importance for Si electrodes due to the large volumetric changes of Si upon (de)insertion of Li ions. This manuscript reports the careful determination of the Young's modulus of the SEI formed on a sputtered Si electrode using wet atomic force microscopy (AFM)-nanoindentation.

View Article and Find Full Text PDF

What is the central question of this study? The acute effect of exercise at moderately high intensity on already-elevated pulmonary arterial pressures and right ventricular wall stress in a rat model of pulmonary arterial hypertension (PAH) is unknown. What is the main finding and its importance? We show, for the first time, that in a rat model of PAH, exercise induces an acute reduction in pulmonary artery pressure associated with lung endothelial nitric oxide synthase activation, without evidence of acute right ventricular inflammation or myocyte apoptosis. Haemodynamic measures obtained with traditional invasive methodology as well as novel implantable telemetry reveal an exercise-induced 'window' of pulmonary hypertension alleviation, supporting future investigations of individualized exercise as therapy in PAH.

View Article and Find Full Text PDF

Single-minded 1 (Sim1) is a basic helix-loop-helix Per-Arnt-Sim transcription factor that is important for neuronal development in the hypothalamus. Loss-of-function mutation of Sim1 causes early-onset obesity. However, it is unknown whether and how Sim1 regulates bone remodeling.

View Article and Find Full Text PDF