Modulation of Biomaterial-Associated Fibrosis by Means of Combined Physicochemical Material Properties.

Biomaterial-associated fibrosis remains a significant challenge in medical implants. To optimize implant design, understanding the interplay between biomaterials and host cells during the foreign body response (FBR) is crucial. Material properties are known to influence cellular behavior and can be used to manipulate cell responses, but predicting the right combination for the desired outcomes is challenging.

Adherence, health care utilization, and costs between long-acting injectable and oral antipsychotic medications in South Carolina Medicaid beneficiaries with schizophrenia.

Background: Schizophrenia and schizoaffective disorder require long-term antipsychotic treatment with antipsychotic medications, but poor medication adherence can lead to increased health care utilization and costs. Long-acting injectable antipsychotics (LAIs) offer potential therapeutic advantages in that they require less frequent dosing and improved medication adherence. South Carolina has the highest adoption of LAIs among US states, making it an ideal population for comparing the effectiveness of LAIs vs oral antipsychotics (OAPs) in treating schizophrenia or schizoaffective disorder.

Matrix metalloproteinases in intestinal fibrosis.

Intestinal fibrosis is a common complication in patients with inflammatory bowel disease [IBD], in particular Crohn's disease [CD]. Unfortunately, at present intestinal fibrosis is not yet preventable, and cannot be treated by interventions other than surgical removal. Intestinal fibrosis is characterized by excessive accumulation of extracellular matrix [ECM], which is caused by activated fibroblasts and smooth muscle cells.

Verteporfin ameliorates fibrotic aspects of Dupuytren's disease nodular fibroblasts irrespective the activation state of the cells.

Dupuytren's disease is a chronic, progressive fibroproliferative condition of the hand fascia which results in digital contraction. So far, treatments do not directly interfere with the (myo)fibroblasts that are responsible for the formation of the collagen-rich cords and its contraction. Here we investigated whether verteporfin (VP) is able to inhibit the activation and subsequent differentiation of DD nodular fibroblasts into myofibroblasts.

Delphi Method to Develop a Palliative Care Tool for Children and Families in Sub-Saharan Africa.

Context: In sub-Saharan Africa, there is no standardized approach to pediatric palliative care assessment. Because of this, there is a critical demand for evidence-based assessment tools that identify the specialized needs of children and their families requiring palliative care in developing countries.

Objectives: To develop a standardized approach to pediatric palliative care (PPC) assessment that includes an individualized plan of care for use in sub-Saharan Africa.

Palliative Care Services within a Pediatric Hematology-Oncology Program in a Low-Resource Setting.

Context: Outcomes for children with cancer in sub-Saharan Africa (SAA) are dismal due to delayed diagnosis and limited access to curative therapy. When establishing a pediatric hematology-oncology (PHO) program in low-resource settings, early integration of palliative care services becomes essential. While palliative care is a human right, equitable distribution is lacking.

Beam Me Out: Review of Emergency Department Telepsychiatry and Lessons Learned During COVID-19.

Purpose Of Review: The aim of this review is to critically evaluate recent literature on the use of telepsychiatry in emergency departments (EDTP) and synthesize the evidence on telepsychiatry during public health emergencies. We also report on experiences and success stories from a state-wide EDTP program in South Carolina during the COVID-19 pandemic.

Recent Findings: We identified 12 peer-reviewed articles published between January 2019 and February 2021 that evaluated EDTP interventions and their impact on patient outcomes.

Part I: Dynamics of Recovery: A Meta-Synthesis Exploring the Nature of Mental Health and Substance Abuse Recovery.

Recovery-oriented care has become a leading vision across countries. To develop services and communities in more recovery-oriented directions, enhanced understandings of recovery in terms of personal and social contexts are important prerequisites. The aim of this study is to explore the nature and characteristics of the experiences of recovery.

Macromolecular Crowding as a Tool to Screen Anti-fibrotic Drugs: The Scar-in-a-Jar System Revisited.

An unsolved therapeutic problem in fibrosis is the overproduction of collagen. In order to screen the effect of anti-fibrotic drugs on collagen deposition, the Scar-in-a-Jar approach has been introduced about a decade ago. With macromolecular crowding a rapid deposition of collagen is seen, resulting in a substantial decrease in culture time, but the system has never been tested in an adequate way.

Collagen release by human hepatic stellate cells requires vitamin C and is efficiently blocked by hydroxylase inhibition.

Liver fibrosis is characterized by the accumulation of extracellular matrix proteins, mainly composed of collagen. Hepatic stellate cells (HSCs) mediate liver fibrosis by secreting collagen. Vitamin C (ascorbic acid) is a cofactor of prolyl-hydroxylases that modify newly synthesized collagen on the route for secretion.

Improving Peripheral Intravenous Catheter Care for Children with Cancer Receiving Chemotherapy in Malawi.

Purpose: To change pediatric oncology nursing management of peripheral intravenous catheter (PIVC) insertion and care based on current best evidence.

Design And Methods: Practice change strategies were developed, and nurses completed education on proper PIVC insertion, dressing placement, and ongoing PIVC assessment with emphasis on preventing chemotherapy extravasation. Nurses also completed a chemotherapy course as part of their orientation program.

Intestinal stenosis in Crohn's disease shows a generalized upregulation of genes involved in collagen metabolism and recognition that could serve as novel anti-fibrotic drug targets.

Background And Aims: Crohn's disease (CD) can be complicated by intestinal fibrosis. Pharmacological therapies against intestinal fibrosis are not available. The aim of this study was to determine whether pathways involved in collagen metabolism are upregulated in intestinal fibrosis, and to discuss which drugs might be suitable to inhibit excessive extracellular matrix formation targeting these pathways.

KRAB-Induced Heterochromatin Effectively Silences Gene Expression in Somatic Cells and is Resilient to TGFβ1 Activation.

Epigenetic editing, an emerging technique used for the modulation of gene expression in mammalian cells, is a promising strategy to correct disease-related gene expression. Although epigenetic reprogramming results in sustained transcriptional modulation in several in vivo models, further studies are needed to develop this approach into a straightforward technology for effective and specific interventions. Important goals of current research efforts are understanding the context-dependency of successful epigenetic editing and finding the most effective epigenetic effector(s) for specific tasks.

Predictive Value of Precision-Cut Kidney Slices as an Ex Vivo Screening Platform for Therapeutics in Human Renal Fibrosis.

Animal models are a valuable tool in preclinical research. However, limited predictivity of human biological responses in the conventional models has stimulated the search for reliable preclinical tools that show translational robustness. Here, we used precision-cut kidney slices (PCKS) as a model of renal fibrosis and investigated its predictive capacity for screening the effects of anti-fibrotics.

Fiber-Optic Multipoint Sensor System with Low Drift for the Long-Term Monitoring of High-Temperature Distributions in Chemical Reactors.

A low-drift fiber-optic sensor system, consisting of 24 regenerated fiber Bragg gratings (RFBG), equally distributed over a length of 2.3 m, is presented here. The sensor system can monitor spatially extended temperature profiles with a time resolution of 1 Hz at temperatures of up to 500 °C.

Inhibition of tyrosine kinase receptor signaling attenuates fibrogenesis in an ex vivo model of human renal fibrosis.

Poor translation from animal studies to human clinical trials is one of the main hurdles in the development of new drugs. Here, we used precision-cut kidney slices (PCKS) as a translational model to study renal fibrosis and to investigate whether inhibition of tyrosine kinase receptors, with the selective inhibitor nintedanib, can halt fibrosis in murine and human PCKS. We used renal tissue of murine and human origins to obtain PCKS.

Exploring organ-specific features of fibrogenesis using murine precision-cut tissue slices.

Fibrosis is the hallmark of pathologic tissue remodelling in most chronic diseases. Despite advances in our understanding of the mechanisms of fibrosis, it remains uncured. Fibrogenic processes share conserved core cellular and molecular pathways across organs.

Glimpses into the molecular pathogenesis of Peyronie's disease.

Peyronie's disease (PD) is a fibroproliferative disease of the penis. Since little is known about the molecular pathogenesis of PD, we compared the biochemical make-up of PD plaques with normal tunica albuginea to clarify pathological processes in the scarred tissue. Protein and mRNA levels were measured in plaques and in unaffected pieces of the tunica albuginea.

Collagen cross-linking mediated by lysyl hydroxylase 2: an enzymatic battlefield to combat fibrosis.

The hallmark of fibrosis is an excessive accumulation of collagen, ultimately leading to organ failure. It has become evident that the deposited collagen also exhibits qualitative modifications. A marked modification is the increased cross-linking, leading to a stabilization of the collagen network and limiting fibrosis reversibility.

Current concepts in osteogenesis imperfecta: bone structure, biomechanics and medical management.

The majority of patients with osteogenesis imperfecta (OI) have mutations in the COL1A1 or COL1A2 gene, which has consequences for the composition of the bone matrix and bone architecture. The mutations result in overmodified collagen molecules, thinner collagen fibres and hypermineralization of bone tissue at a bone matrix level. Trabecular bone in OI is characterized by a lower trabecular number and connectivity as well as a lower trabecular thickness and volumetric bone mass.

Verteporfin as a Medical Treatment in Peyronie's Disease.

Introduction: In Europe and the United States, verteporfin (Visudyne; VP) is registered and used in treating macular degeneration. Research showed that VP decreased expression of fibrotic genes in fibroblasts collected from nodules of patients suffering from Dupuytren's disease, plausibly by de-activating transcription in the Yes Activated Protein (YAP) pathway.

Aim: To analyze the effect of VP on myofibroblasts cultured from Peyronie's disease (PD) plaques.

Early hypoxemia burden is strongly associated with severe intracranial hemorrhage in preterm infants.

Objectives: The objective of this study was to define the association between the burden of severe hypoxemia (SpO ≤70%) in the first week of life and development of severe ICH (grade III/IV) in preterm infants.

Study Design: Infants born at <32 weeks or weighing <1500 g underwent prospective SpO recording from birth through 7 days. Severe hypoxemia burden was calculated as the percentage of the error-corrected recording where SpO ≤70%.

αII-spectrin and βII-spectrin do not affect TGFβ1-induced myofibroblast differentiation.

Mechanosensing of fibroblasts plays a key role in the development of fibrosis. So far, no effective treatments are available to treat this devastating disorder. Spectrins regulate cell morphology and are potential mechanosensors in a variety of non-erythroid cells, but little is known about the role of spectrins in fibroblasts.