Application of Hydrothermal Synthesized Titanium Dioxide-Doped Multiwalled Carbon Nanotubes on Filtration Properties-Response Surface Methodology Study.

The success of any drilling activity mainly depends on the characteristics of the drilling fluid. Therefore, a high-performance drilling fluid is substantial for any drilling operation. During overbalance drilling operations, the drilling mud invades the permeable formations and causes the loss of circulation, which is responsible for nonproductive time events.

Porcine-human glioma xenograft model. Immunosuppression and model reproducibility.

Background: Glioblastoma is the most common primary malignant and treatment-resistant human brain tumor. Rodent models have played an important role in understanding brain cancer biology and treatment. However, due to their small cranium and tumor volume mismatch, relative to human disease, they have been less useful for translational studies.

LGBTQ+ Peer Advocates' Health Communication Praxis for College Student Health Outreach and Intersectional Needs.

The following essay examines health communication outreach for LGBTQ+ college students through analyzing both the design and exit evaluation of a federally funded United States public health program. SHARE-Pride was a three-year health intervention program that served LGBTQ+ students ages 18-24 at Southern University (SU)-a Hispanic and Minority Serving Institution. Because of structural barriers creating sexual health and drug and alcohol consumption risks, SHARE-Pride (SP) used a peer advocate model for students to develop mentoring relationships with LGBTQ+ peers to increase health knowledge.

Association between vitamin D levels in early pregnancy and gestational diabetes mellitus: A systematic review and meta-analysis.

Background: This meta-analysis aimed to pool all the available data to provide a well-powered assessment of the role of maternal Vitamin D levels in developing gestational diabetes mellitus (GDM) because already published studies evaluating this association are small in sample size and yielded conflicting findings.

Material And Methods: A systematic review and meta-analysis of observational studies was performed. We searched electronic databases (PubMed and Cochrane Central) from inception to April 2021 for published and unpublished observational studies that determined the association between the reduction of Vitamin D levels and the risk of developing GDM in pregnant women.

Dostarlimab: A breakthrough in the field of oncology.

Of the 19 million cancer cases reported worldwide in 2020, colorectal cancer (CRC) has a 10% prevalence and 9.4% mortality. A critical lack of cancer treatment facilities in third-world countries like Pakistan where a significant prevalence of CRC has been detected.

Application of a computational model in simulating an endovascular clot retrieval service system within regional Australia.

Introduction: The global demand for endovascular clot retrieval (ECR) has grown rapidly in recent years creating challenges to healthcare system planning and resource allocation. This study aims to apply our established computational model to predict and optimise the performance and resource allocation of ECR services within regional Australia, and applying data from the state of South Australia as a modelling exercise.

Method: Local geographic information obtained using the Google Maps application program interface and real-world data was input into the discrete event simulation model we previously developed.

Geographic Service Delivery for Endovascular Clot Retrieval: Using Discrete Event Simulation to Optimize Resources.

Background: Endovascular clot retrieval (ECR) is the standard of care for acute ischemic stroke caused by large vessel occlusion. Reducing stroke symptom onset to reperfusion time is associated with improved functional outcomes. This study aims to develop a computational model to predict and identify time-related outcomes of community stroke calls within a geographic area based on variable parameters to support planning and coordination of ECR services.

CODE STROKE ALERT-Concept and Development of a Novel Open-Source Platform to Streamline Acute Stroke Management.

Effective, time-critical intervention in acute stroke is crucial to mitigate mortality rate and morbidity, but delivery of reperfusion treatments is often hampered by pre-, in-, or inter-hospital system level delays. Disjointed, repetitive, and inefficient communication is a consistent contributor to avoidable treatment delay. In the era of rapid reperfusion therapy for ischemic stroke, there is a need for a communication system to synchronize the flow of clinical information across the entire stroke journey.

: Evaluation of AHCC Supplementation to Modulate the Host Immunity to Clear High-Risk Human Papillomavirus Infections.

There is currently no effective medicine or supplement for clearance of high risk- human papillomavirus (HR-HPV) infections. We have taken a systematic approach evaluating the potential use of AHCC supplementation to support clearance of HR-HPV infections. The primary objective of this research was to evaluate AHCC supplementation to modulation of the host immune system to clear HR-HPV infections from bench to bedside.

Evaluation Fucoidan Extracts From Undaria pinnatifida and Fucus vesiculosus in Combination With Anticancer Drugs in Human Cancer Orthotopic Mouse Models.

Objective: To determine the activity of fucoidan from Undaria pinnatifida (UPF) and Fucus vesiculosus (FVF) when given in combination of chemotherapy drugs using selected human breast or ovarian cancer orthotopic mouse models.

Methods: Mice were inoculated with 1 × 10 cells of TOV-112d, MCF-7, or ZR-75 subcutaneously or SKOV-GFP-Luc intraperitoneally on day 0. MCF-7 and ZR-75 mice were administered with estradiol valerate 2 mg/kg in 0.

Preclinical Evaluation of Safety of Fucoidan Extracts From Undaria pinnatifida and Fucus vesiculosus for Use in Cancer Treatment.

Objectives: To evaluate potential hepatic metabolism-mediated drug interactions with fucoidan from Undaria pinnatifida (UPF) or Fucus vesiculosus (FVF) and potential growth inhibition activity with either fucoidan alone or with chemotherapy. In vivo studies were done to confirm safety and investigate fucoidan-mediated immune modulation.

Methods: Cytochrome P450 (CYP450) 3A4, 2C8, 2C9, and 2D6 inhibition experiments were conducted in vitro followed by an ex vivo human hepatocytes model to evaluate the CYP450 induction potential of each fucoidan at highest theoretical concentrations.

The linker histone H1.0 generates epigenetic and functional intratumor heterogeneity.

Tumors comprise functionally diverse subpopulations of cells with distinct proliferative potential. Here, we show that dynamic epigenetic states defined by the linker histone H1.0 determine which cells within a tumor can sustain the long-term cancer growth.

Equivalency challenge: Evaluation of Lipodox® as the generic equivalent for Doxil® in a human ovarian cancer orthotropic mouse model.

Background: The objective of this study was to evaluate the in vivo growth inhibition activity and tumor distribution of Doxil® compared to Lipodox® as its generic (GLD) in human ovarian cancer orthotopic mouse model.

Methods: In the efficacy study 50 mice were randomized to: vehicle, Doxil® 5mg/kg or 10mg/kg, or GLD 5mg/kg or 10mg/kg for a total of three cycles with monitoring for response and toxicity with 10 mice in each arm. In the microdialysis(MD) study, 60 mice were randomized to: Doxil® 5mg/kg or 10mg/kg, or GLD 5mg/kg or 10mg/kg single dose (n=15 mice/arm).

The Neurogenic Potential of Astrocytes Is Regulated by Inflammatory Signals.

Although the adult brain contains neural stem cells (NSCs) that generate new neurons throughout life, these astrocyte-like populations are restricted to two discrete niches. Despite their terminally differentiated phenotype, adult parenchymal astrocytes can re-acquire NSC-like characteristics following injury, and as such, these 'reactive' astrocytes offer an alternative source of cells for central nervous system (CNS) repair following injury or disease. At present, the mechanisms that regulate the potential of different types of astrocytes are poorly understood.

A critical role for the chromatin remodeller CHD7 in anterior mesoderm during cardiovascular development.

CHARGE syndrome is caused by spontaneous loss-of-function mutations to the ATP-dependant chromatin remodeller chromodomain-helicase-DNA-binding protein 7 (CHD7). It is characterised by a distinct pattern of congenital anomalies, including cardiovascular malformations. Disruption to the neural crest lineage has previously been emphasised in the aetiology of this developmental disorder.

RE1 silencing transcription factor/neuron-restrictive silencing factor regulates expansion of adult mouse subventricular zone-derived neural stem/progenitor cells in vitro.

Adult neural stem cell (aNSC) activity is tuned by external stimuli through the recruitment of transcription factors. This study examines the RE1 silencing transcription factor (REST) in neural stem/progenitor cells isolated from the subventricular zone of adult mouse brain and provides the first extensive characterization of REST-mediated control of the cellular and molecular properties. This study shows that REST knockdown affects the capacity of progenitor cells to generate neurospheres, reduces cell proliferation, and triggers cell differentiation despite the presence of growth factors.

Molecular and functional consequences of mutations in the central helix of cardiac troponin C.

The objective of this work was to investigate the role of acidic residues within the exposed middle segment of the central helix of cTnC in (1) cTnC-cTnI interactions, (2) Ca(2+) binding and exchange with the regulatory N-domain of cTnC in increasingly complex biochemical systems, and (3) ability of the cTn complex to regulate actomyosin ATPase. In order to achieve this objective, we introduced the D87A/D88A and E94A/E95A/E96A mutations into the central helix of cTnC. The D87A/D88A and E94A/E95A/E96A mutations decreased affinity of cTnC for the regulatory region of cTnI.

An epigenetic signature of developmental potential in neural stem cells and early neurons.

A cardinal property of neural stem cells (NSCs) is their ability to adopt multiple fates upon differentiation. The epigenome is widely seen as a read-out of cellular potential and a manifestation of this can be seen in embryonic stem cells (ESCs), where promoters of many lineage-specific regulators are marked by a bivalent epigenetic signature comprising trimethylation of both lysine 4 and lysine 27 of histone H3 (H3K4me3 and H3K27me3, respectively). Bivalency has subsequently emerged as a powerful epigenetic indicator of stem cell potential.

Incomplete follow-up of hemoglobinopathy carriers identified by newborn screening despite reporting in electronic medical records.

Objective: Has the recent availability of newborn hemoglobinopathy screening results within patient electronic medical records (EMR) of birth hospitals facilitated follow-up by primary care pediatric providers?

Methods: An online survey of all 137 primary care pediatric providers at a New York City academic medical center was conducted in 2008-2009 to assess practices for hemoglobin-apathy trait follow-up. Physicians were resurveyed 1 year later, following educational outreach and a letter of instruction underscoring the availability of screening results in the EMR. All 62 primary care pediatricians were surveyed at a nearby city hospital for comparison.

Early detection and treatment of severe sepsis in the emergency department: identifying barriers to implementation of a protocol-based approach.

Introduction: Despite evidence to support efficacy of early goal-directed therapy for resuscitation of patients with severe sepsis and septic shock in the emergency department, implementation remains incomplete. To identify and address specific barriers at our institution and maximize benefits of a planned sepsis treatment initiative, a baseline assessment of knowledge, attitudes, and behaviors regarding detection and treatment of severe sepsis was performed.

Methods: An online survey was offered to nurses and physicians in the emergency department of a major urban academic medical center.

The impact of the bundle on lab services.

The rule states that CMS will implement a quality incentive program (QIP) for Medicare outpatient end-stage renal disease (ESRD) dialysis providers and facilities with payment consequences beginning January 1, 2012. This is in accordance with section 1881(h) of the Act (added on July 15, 2008 by section 153(c) of the Medicare Improvements for Patients and Providers Act (MIPPA)). Under the ESRD QIP, ESRD payments made to dialysis providers and facilities under section 1881(b)(14) of the Social Security Act will be reduced by up to 2% if the providers/facilities fail to meet or exceed a total performance score for standards related to certain specified performance measures.

Piperazinyl glutamate pyridines as potent orally bioavailable P2Y12 antagonists for inhibition of platelet aggregation.

Polymer-assisted solution-phase (PASP) parallel library synthesis was used to discover a piperazinyl glutamate pyridine as a P2Y(12) antagonist. Exploitation of this lead provided compounds with excellent inhibition of platelet aggregation as measured in a human platelet rich plasma (PRP) assay. Pharmacokinetic and physiochemical properties were optimized through modifications at the 4-position of the pyridine ring and the terminal nitrogen of the piperazine ring, leading to compound (4S)-4-[({4-[4-(methoxymethyl)piperidin-1-yl]-6-phenylpyridin-2-yl}carbonyl)amino]-5-oxo-5-{4-[(pentyloxy)carbonyl]piperazin-1-yl}pentanoic acid 47s with good human PRP potency, selectivity, in vivo efficacy, and oral bioavailability.