Pharmacological Enhancement of Adult Hippocampal Neurogenesis Improves Behavioral Pattern Separation in Young and Aged Male Mice.

Background: Impairments in behavioral pattern separation (BPS)-the ability to distinguish between similar contexts or experiences-contribute to memory interference and overgeneralization seen in many neuropsychiatric conditions, including depression, anxiety, posttraumatic stress disorder, dementia, and age-related cognitive decline. Although BPS relies on the dentate gyrus and is sensitive to changes in adult hippocampal neurogenesis, its significance as a pharmacological target has not been tested.

Methods: In this study, we applied a human neural stem cell high-throughput screening cascade to identify compounds that increase human neurogenesis.

The CD123 antibody-drug conjugate pivekimab sunirine exerts profound activity in preclinical models of pediatric acute lymphoblastic leukemia.

Antibody-drug conjugates (ADCs) combining monoclonal antibodies with cytotoxic payloads are a rapidly emerging class of immune-based therapeutics with the potential to improve the treatment of cancer, including children with relapse/refractory acute lymphoblastic leukemia (ALL). CD123, the α subunit of the interleukin-3 receptor, is overexpressed in ALL and is a potential therapeutic target. Here, we show that pivekimab sunirine (PVEK), a recently developed ADC comprising the CD123-targeting antibody, G4723A, and the cytotoxic payload, DGN549, was highly effective in vivo against a large panel of pediatric ALL patient-derived xenograft (PDX) models ( = 39).

Jansen metaphyseal chondrodysplasia: analysis of craniofacial manifestations.

Jansen metaphyseal chondrodysplasia (JMC) is an ultra-rare disorder caused by constitutive activation of parathyroid hormone type 1 receptor (PTH1R). We sought to characterize the craniofacial phenotype of patients with the disease. Six patients with genetically confirmed JMC underwent comprehensive craniofacial phenotyping revealing a distinct facial appearance that prompted a cephalometric analysis demonstrating a pattern of mandibular retrognathia.

My Tablet's About to Go Dead! 5- to 6-year-old Children Adjust Their Cognitive Strategies Depending on Whether An External Resource is Reliably Available.

There are concerns that reliance on external resources (e.g., information on digital devices) may be harmful to our own internal memory.

Quantitative photoacoustic imaging using known chromophores as fluence marker.

Photoacoustic imaging offers optical contrast images of human tissue at acoustic resolution, making it valuable for diverse clinical applications. However, quantifying tissue composition via optical contrast remains challenging due to the unknown light fluence within the tissue. Here, we propose a method that leverages known chromophores (, arterial blood) to improve the accuracy of quantitative photoacoustic imaging.

Rev-RRE activity modulates HIV-1 replication and latency reactivation: Implications for viral persistence and cure strategies.

The HIV-1 Rev-RRE regulatory axis plays a crucial role in viral replication by facilitating the nucleo-cytoplasmic export and expression of viral mRNAs with retained introns. In this study, we investigated the impact of variation in Rev-RRE functional activity on HIV-1 replication kinetics and reactivation from latency. Using a novel HIV-1 clone with an interchangeable Rev cassette, we engineered viruses with different Rev functional activities and demonstrated that higher Rev-RRE activity confers greater viral replication capacity while maintaining a constant level of Nef expression.

Experiences of People With Type 1 Diabetes Using the iLet Bionic Pancreas in Primary Care: A Qualitative Analysis.

This qualitative substudy sought to identify and understand the experiences of primary care patients with type 1 diabetes using the iLet Bionic Pancreas (Beta Bionics, Inc.) during the first clinical trial testing the automated insulin delivery (AID) system in the primary care setting. Participants in that clinical trial completed a brief semi-structured interview after the trial's completion, during which they were asked questions related to their perceptions of and experiences with using the iLet AID system.

Development of a Paper-Based Disposal Thin-Film Solid-Phase Microextraction Tool for the Quantification of Environmentally Hazardous 4-Chlorophenol in Water.

The presence of chlorinated compounds in water resources presents various environmental and health risks. Therefore, there is a precise need to develop a potential technique for fast and efficient monitoring of chlorinated contaminants in water due to environmental protection and regulation compliance. Here, we designed a paper-based thin-film solid-phase microextraction (TF-SPME) patch to estimate 4-chlorophenol (4-CRP), a widely known environmentally hazardous pollutant in water samples.

Enhanced Stability and Sensitivity for CA-125 Detection Under Microfluidic Shear Flow Using Polyethylene Glycol-Coated Biosensor.

The microfluidic-based point-of-care (POC) diagnostic tool has garnered significant interest in recent years, offering rapid and cost-effective disease detection. There is a growing trend toward integrating microfluidic platforms with biosensors, aligning lab-on-a-chip technologies with POC diagnostic devices. Despite numerous efforts to incorporate biosensors into microfluidic systems, researchers have performed very limited investigations on the stability of biomarker detection when biosensors operate under microfluidic shear flow conditions.

Pancreatic Fistula and Intraabdominal Fluid Collections after Distal Pancreatectomy: Incidence, Implications, and Natural History.

Objective: To investigate the incidence and management of pancreatic fistula and fluid collections (FC) after distal pancreatectomy (DP).

Summary Background Data: Pancreatic fistula and FC are common after DP. The relationship between pancreatic fistula, FC, and surgical drain placement remains unclear.

Enhancing Tolerance to Combined Heat and Drought Stress in Cool-Season Grain Legumes: Mechanisms, Genetic Insights, and Future Directions.

The increasing frequency of concurrent heat and drought stress poses a significant challenge to agricultural productivity, particularly for cool-season grain legumes, including broad bean (Vicia Faba L.), lupin (Lupinus spp.), lentil (Lens culinaris Medik), chickpea (Cicer arietinum L.

Increased Risk of Femoral Neck Stress Fractures in Patients With Cam or Pincer Morphology.

Previous studies suggest a relationship between femoroacetabular impingement (FAI) and femoral neck stress fractures (FNSF), due to pathologic biomechanics in the setting of femoral head abutment (cam morphology) and/or acetabular overcoverage (pincer morphology). The purpose of this study is to evaluate the association between cam or pincer morphology and FNSF, compared to a control group of patients without hip pain. A retrospective review of the electronic medical record at a single institution was queried for patients with FNSF over a 10-year time period from January 2011-2021.

An Open-Shell Fe Nitrido.

We report the photogeneration and characterization of an open-shell, terminal iron nitrido (L)Fe(N) using a sterically encumbered dipyrrin ligand environment. The Fe-N distance in the solid-state, zero-field Fe Mössbauer spectrum, and computational analysis are consistent with a triplet electronic ground state of the iron nitrido. Notably, the attenuation of Fe-N multiple bond character through occupying π* enables (i) primary C(sp)-H amination, (ii) H cleavage, (iii) aromatic C-C cleavage, and (iv) photocatalytic -atom transfer reactivity.

Prenatal Care of Parents Who Continued Pregnancies With Down Syndrome, 2003-2022.

Parents of children with Down syndrome have historically reported poor experiences receiving a prenatal diagnosis. In a 2003 survey, mothers reported that their physicians pitied them, emphasized negative aspects of Down syndrome, and encouraged them to terminate the pregnancy. This study assesses whether parents' perceptions have since improved.

Discovery of Human PIM Kinase Inhibitors as a Class of Anthelmintic Drugs to Treat Intestinal Nematode Infections.

Soil-transmitted helminth (STH) infections affect one-fourth of the global population and pose a significant threat to human and animal health, with limited treatment options and emerging drug resistance. (whipworm) stands out as a neglected disease, necessitating new drugs to address this unmet medical need. We discovered that several different chemical series of related human Provirus Integration sites for Moloney murine leukemia virus (PIM) family kinase inhibitors possess potent anthelmintic activity by using whole-worm motility assays.

Classification of Scanning Errors of Digital Scans Recorded by Using Intraoral Scanners.

Objectives: The different scanning errors that can be caused by the operator handling an intraoral scanner (IOS) or the intraoral conditions of the patient being scanned have not been described. The purpose of this review was to describe and classify the scanning errors that can be identified in digital scans recorded by using IOSs.

Overview: The identification of scanning errors in an intraoral scan and understanding the cause of these scanning errors are fundamental procedures for successfully handling an IOS and integrating these digital data acquisition technologies in dental practices.

Utilization of Staging Laparoscopy for Patients With Gastric Cancer in Ukraine.

Background: The use of advanced diagnostic methods, such as high-resolution CT or PET-CT scans, are limited in low and middle-income countries (LMICs). In gastric cancer, occult peritoneal disease may be present in up to 20% of cases, limiting the benefits of surgical resection. Accurate staging of gastric cancer is essential to ensure optimal patient management and prevent undue morbidity from unnecessary surgery.

Does Meaning in Life Mediate Associations Between Suffering and Subsequent Mental Well-Being? Longitudinal Evidence From Two Non-Western Samples.

Narrative accounts have documented the potential for suffering to degrade a person's well-being by undermining their sense of meaning in life, but few studies have investigated this among nonclinical samples living in non-Western contexts of the Global South. Leveraging data from a set of three-wave longitudinal studies with younger Indonesian (Study 1: Wave 1 [December 2020], Wave 2 [January 2021], Wave 3 [February 2021]; N = 620) and Colombian adults (Study 2: Wave 1 [August/September 2021], Wave 2 [October/November 2021], Wave 3 [February 2022]; N = 2626), the present research used causal mediation methods within a counterfactual framework to examine whether the associations between suffering (Wave 1) and subsequent anxiety symptoms, depression symptoms, and general mental health (Wave 3) are mediated by meaning in life (Wave 2). Mediation analyses in both studies provided some evidence indicating that overall suffering (Wave 1) is indirectly associated with worse subsequent mental well-being on all three outcomes (Wave 3) via lower meaning in life (Wave 2).

Modulation of the Oxygenation State and Intracellular pH of Erythrocytes by Inositol-Trispyrophosphate Investigated by P NMR Study of 2,3-DPG.

The hypoxic microenvironment is crucial for tumour cell growth and invasiveness. Tumour tissue results from adaptation to reduced oxygen availability. Hypoxia first activates pro-angiogenic signals for alleviation.