Evidence for gene flow from the Gulf of Mexico to the Atlantic Ocean in bonnethead sharks ().

Gene flow is important for maintaining the genetic diversity required for adaptation to environmental disturbances, though gene flow may be limited by site fidelity in small coastal sharks. Bonnethead sharks ()-a small coastal hammerhead species-demonstrate site fidelity, as females are philopatric while males migrate to mediate gene flow. Consequently, bonnetheads demonstrate population divergence with distance, and Atlantic populations are genetically distinct from those of the Gulf of Mexico.

NS-Pten knockout mice exhibit sex and hippocampal subregion-specific increases in microglia/macrophage density.

Seizures induce hippocampal subregion dependent enhancements in microglia/macrophage phagocytosis and cytokine release that may contribute to the development of epilepsy. As a model of hyperactive mTOR induced epilepsy, neuronal subset specific phosphatase and tensin homolog (NS-Pten) knockout (KO) mice exhibit hyperactive mTOR signaling in the hippocampus, seizures that progress with age, and enhanced hippocampal microglia/macrophage activation. However, it is unknown where microglia/macrophages are most active within the hippocampus of NS-Pten KO mice.

A review of implementation research funded by the National Institute on Drug Abuse, 2007-2023: Progress and opportunities.

Background: The ongoing and evolving overdose epidemic highlights the need to translate research results into routine clinical practice to address urgent service delivery needs. Implementation science is a relatively new discipline intended to develop systematic, replicable, scalable strategies to accelerate this translation. This article presents a comprehensive review of implementation research funded by the National Institute on Drug Abuse (NIDA).

G-quadruplexes are a source of vulnerability in deficient granule cell progenitors and medulloblastoma.

Biallelic pathogenic variants in the essential DNA repair gene causes Fanconi anemia, complementation group FA-D1. Patients in this group are highly prone to develop embryonal tumors, most commonly medulloblastoma arising from the cerebellar granule cell progenitors (GCPs). GCPs undergo high proliferation in the postnatal cerebellum under SHH activation, but the type of DNA lesions that require the function of the BRCA2 to prevent tumorigenesis remains unknown.

Fentanyl-Related Substance Use Patterns, Morbidity, and Mortality Among Adolescents and Young Adults: Implications for Behavioral Health Services Research.

This commentary discusses best practices for responding to fentanyl-related overdose deaths in adolescents and young adults, and it outlines the current state of knowledge about them. Various types of approaches to fentanyl-related overdoses in this age group may need to be developed based on the different risk factors that are emerging from the existing data. We describe the National Institute on Drug Abuse (NIDA) behavioral health services research priorities connected with fentanyl-related overdoses in youth.

RTF2 controls replication repriming and ribonucleotide excision at the replisome.

DNA replication through a challenging genomic landscape is coordinated by the replisome, which must adjust to local conditions to provide appropriate replication speed and respond to lesions that hinder its progression. We have previously shown that proteasome shuttle proteins, DNA Damage Inducible 1 and 2 (DDI1/2), regulate Replication Termination Factor 2 (RTF2) levels at stalled replisomes, allowing fork stabilization and restart. Here, we show that during unperturbed replication, RTF2 regulates replisome localization of RNase H2, a heterotrimeric enzyme that removes RNA from RNA-DNA heteroduplexes.

Philopatry influences the genetic population structure of the blacktip shark (Carcharhinus limbatus) at multiple spatial scales.

Understanding how interactions among microevolutionary forces generate genetic population structure of exploited species is vital to the implementation of management policies that facilitate persistence. Philopatry displayed by many coastal shark species can impact gene flow and facilitate selection, and has direct implications for the spatial scales of management. Here, genetic structure of the blacktip shark (Carcharhinus limbatus) was examined using a mixed-marker approach employing mitochondrial control region sequences and 4339 SNP-containing loci generated using ddRAD-Seq.

Label-free deep-UV microscopy detection and grading of neutropenia using a passive microfluidic device.

Neutropenia is a condition comprising an abnormally low number of neutrophils, a type of white blood cell, which puts patients at an increased risk of severe infections. Neutropenia is especially common among cancer patients and can disrupt their treatment or even be life-threatening in severe cases. Therefore, routine monitoring of neutrophil counts is crucial.

RTF2 controls replication repriming and ribonucleotide excision at the replisome.

Genetic information is duplicated via the highly regulated process of DNA replication. The machinery coordinating this process, the replisome, encounters many challenges, including replication fork-stalling lesions that threaten the accurate and timely transmission of genetic information. Cells have multiple mechanisms to repair or bypass lesions that would otherwise compromise DNA replication.

The comparative effectiveness of Core versus Core+Enhanced implementation strategies in a randomized controlled trial to improve substance use treatment receipt among justice-involved youth.

Background: Most justice-involved youth are supervised in community settings, where assessment and linkage to substance use (SU) treatment services are inconsistent and fragmented. Only 1/3 of youth with an identified SU need receive a treatment referral and even fewer initiate services. Thus, improving identification and linkage to treatment requires coordination across juvenile justice (JJ) and behavioral health (BH) agencies.

Assessment of the effects of sex, age, and rearing condition on ultrasonic vocalizations elicited by pups during the maternal potentiation paradigm in C57BL/6J mice.

Isolation-induced ultrasonic vocalizations (USVs) are important to elicit parental retrieval. This behavior is critical for the animal's survival and can be altered in models of developmental disorders. The potentiation of vocalizations in response to reunion with the dam, also called maternal potentiation, has been extensively studied in rats.

Using structured implementation interventions to improve referral to substance use treatment among justice-involved youth: Findings from a multisite cluster randomized trial.

Introduction: Youth involved in the justice system have high rates of alcohol and other drug use, but limited treatment engagement. JJ-TRIALS tested implementation activities with community supervision (CS) and behavioral health (BH) agencies to improve screening, identification of substance use service need, referral, and treatment initiation and engagement, guided by the BH Services Cascade and EPIS frameworks. This paper summarizes intervention impacts on referrals to treatment among youth on CS.

Experimental and Theoretical Characterization of Ultrafast Water-Soluble Photochromic Photoacids.

UV-visible transient absorption spectroscopy and quantum mechanical simulations are combined to elucidate the photochemical mechanism of two metastable merocyanine/spiropyran photoacids, 2-[()-2-(2-hydroxyphenyl)ethenyl]-3,3-dimethyl-1-(3-sulfopropyl)-3-indol-1-ium (phenylhydroxy-MCH) and 2-[()-2-(1-indazol-7-yl)ethenyl]-3-(3-sulfopropyl)-1,3-benzothiazol-3-ium (indazole-MCH). Transient absorption spectra demonstrate that -acid isomerization to the form results in deprotonation on a picosecond time scale. Ring closure to form spiropyran follows promptly from the appropriate conformation or follows at longer time delays (≫3.

The Missing Link(age): Multilevel Contributors to Service Uptake Failure Among Youths on Community Justice Supervision.

Objectives: Youths in the juvenile justice system often do not access needed behavioral health services. The behavioral health services cascade model was used to examine rates of substance use screening, identification of substance use treatment needs, and referral to and initiation of treatment among youths undergoing juvenile justice system intake and to identify when treatment access is most challenged. Characteristics associated with identification of behavioral health needs and linkage to community services were also examined.

Engaging the justice system to address the opioid crisis: The Justice Community Opioid Innovation Network (JCOIN).

Many individuals with opioid use disorder come into contact with the justice system each year, making the nexus between the criminal justice system and the health care system a critical juncture for responding to the opioid crisis and simultaneously promoting public health and public safety. Collaborations across these sectors are essential to providing effective screening, treatment, and discharge planning; connecting individuals to services following release; promoting long-term recovery while reducing recidivism; and ultimately bringing the opioid crisis under control. In 2019, with the support of the NIH Helping to End Addiction Long-term (HEAL) Initiative, the National Institute on Drug Abuse launched the Justice Community Opioid Innovation Network (JCOIN).

Escaped bait: Bull shark Carcharhinus leucas with an intentionally attached harness rig.

A 193 cm total length female bull shark Carcharhinus leucas was captured in Florida bearing intentionally attached materials which resembled a harness. Harness-type live bait rigs are commonly used for small baitfish; some anglers use such devices with small sharks when targeting large sharks and bony fish. Biofouling on the apparatus and the extent of the injuries indicated the material had likely been on the shark for several years.

The Importance of Learning Health Systems in Addressing the Opioid Crisis.

Interventions and research to address the US opioid crisis have, for the most part, targeted opioid use, misuse, and addiction specifically. While such a focus can lead to useful innovations in the care of opioid use disorder, the fact that many persons with opioid use disorder use multiple substances (both over their life course and simultaneously in drug-using episodes) makes it imperative to address broader issues of addiction in persons who have opioid use disorder as their presenting concern. Because of integrated care and the ability to target multiple clinical concerns in parallel, the Veterans Administration (VA) may be uniquely situated to address the key issue of multi-morbidity that persons with opioid use disorder so frequently exhibit.

Relationship of the Musculocutaneous Nerve and Its Twigs to the Coracoid Process: An Operative Exposure.

Background: A musculocutaneous nerve (MCN) injury is a rare complication of the Latarjet procedure. Most of these injuries are neurapraxias and resolve with time; however, permanent injuries can occur. Understanding the anatomy and relationship of the MCN to the coracoid process is essential to prevent injuries.

Environmental DNA detection tracks established seasonal occurrence of blacktip sharks (Carcharhinus limbatus) in a semi-enclosed subtropical bay.

The integration of eDNA analysis into the population assessment and monitoring of sharks could greatly improve temporal and spatial data used for management purposes. This study aimed to compare eDNA detection against well-established seasonal changes in blacktip shark (Carcharhinus limbatus) abundance in Terra Ceia Bay (FL, USA). We used a species-specific real-time PCR approach to detect C.

Critical Factors Influencing Interorganizational Relationships Between Juvenile Probation and Behavioral Health Agencies.

Although interorganizational relationships (IORs) are essential to the effective delivery of human services, very little research has examined relationships between juvenile justice agencies and behavioral health providers, and few studies have identified the most critical organizational and individual-level characteristics influencing IORs. Across 36 sites, juvenile probation officials (n = 458) and community behavioral health providers (n = 91) were surveyed about characteristics of their agencies, themselves, and IORs with each other. Generalized Linear Mixed Models were used to analyze the data.