Using Experience Sampling Methodology Data to Characterize the Substance Use of Youth With or At-Risk of Psychosis.

Objectives: Psychotic-spectrum disorders emerge during adolescence and early adulthood, which corresponds with the peak period for substance use initiation. Clinical and epidemiological data provide support that substance use is associated with psychotic symptom onset and severity. Experience-sampling methodology (ESM) data may provide additional insight into dynamic associations between substance use and psychotic symptoms.

Identification of Zika Virus and Dengue Virus Dependency Factors using Functional Genomics.

The flaviviruses dengue virus (DENV) and Zika virus (ZIKV) are severe health threats with rapidly expanding ranges. To identify the host cell dependencies of DENV and ZIKV, we completed orthologous functional genomic screens using RNAi and CRISPR/Cas9 approaches. The screens recovered the ZIKV entry factor AXL as well as multiple host factors involved in endocytosis (RAB5C and RABGEF), heparin sulfation (NDST1 and EXT1), and transmembrane protein processing and maturation, including the endoplasmic reticulum membrane complex (EMC).

The interface of child mental health and juvenile diabetes mellitus.

Diabetes mellitus is a common childhood illness, and its management is often complicated by mental health challenges. Psychiatric comorbidities are common, including anxiety, depression, and eating disorders. The illness can profoundly affect the developing brain and family functioning and have lifelong consequences.

Electroconvulsive therapy in an adolescent with autism and bipolar I disorder.

Objectives: We report a positive response to electroconvulsive therapy in a severely functionally impaired adolescent with autistic disorder and classic bipolar I disorder, including an episodic pattern of decreased need for sleep, hypersexuality, expansive and agitated affect, aggression, self-injury, and property destruction.

Methods: After ineffective trials of mood stabilizers and antipsychotics as well as inability to sustain a positive response to lithium due to medication noncompliance, a course of acute and maintenance electroconvulsive therapy was attempted.

Results: A marked and sustained improvement across all symptom categories, as measured by directly observed frequency counts of target behaviors in an inpatient setting, was obtained.

Specialized inpatient psychiatry units for children with autism and developmental disorders: a United States survey.

A cross sectional survey was performed to obtain the characteristics of specialized inpatient psychiatry units exclusively serving children with autism and other developmental disorders in the United States. Identified units were surveyed on basic demographic characteristics, clinical challenges and therapeutic modalities. Average length of stay was 42.

The interface of child mental health and juvenile diabetes mellitus.

Diabetes mellitus is a common childhood illness, and its management is often complicated by mental health challenges. Psychiatric comorbidities are common, including anxiety, depression, and eating disorders. The illness can profoundly affect the developing brain and family functioning and have lifelong consequences.

Enterohemorrhagic E. coli requires N-WASP for efficient type III translocation but not for EspFU-mediated actin pedestal formation.

Upon infection of mammalian cells, enterohemorrhagic E. coli (EHEC) O157:H7 utilizes a type III secretion system to translocate the effectors Tir and EspF(U) (aka TccP) that trigger the formation of F-actin-rich 'pedestals' beneath bound bacteria. EspF(U) is localized to the plasma membrane by Tir and binds the nucleation-promoting factor N-WASP, which in turn activates the Arp2/3 actin assembly complex.

The interface of child mental health and juvenile diabetes mellitus.

Diabetes mellitus is a common childhood illness, and its management is often complicated by mental health challenges. Psychiatric comorbidities are common, including anxiety, depression, and eating disorders. The illness can profoundly affect the developing brain and family functioning and have lifelong consequences.

Insulin receptor tyrosine kinase substrate links the E. coli O157:H7 actin assembly effectors Tir and EspF(U) during pedestal formation.

Enterohemorrhagic Escherichia coli O157:H7 translocates 2 effectors to trigger localized actin assembly in mammalian cells, resulting in filamentous actin "pedestals." One effector, the translocated intimin receptor (Tir), is localized in the plasma membrane and clustered upon binding the bacterial outer membrane protein intimin. The second, the proline-rich effector EspF(U) (aka TccP) activates the actin nucleation-promoting factor WASP/N-WASP, and is recruited to sites of bacterial attachment by a mechanism dependent on an Asn-Pro-Tyr (NPY(458)) sequence in the Tir C-terminal cytoplasmic domain.

Repetitive N-WASP-binding elements of the enterohemorrhagic Escherichia coli effector EspF(U) synergistically activate actin assembly.

Enterohemorrhagic Escherichia coli (EHEC) generate F-actin-rich adhesion pedestals by delivering effector proteins into mammalian cells. These effectors include the translocated receptor Tir, along with EspF(U), a protein that associates indirectly with Tir and contains multiple peptide repeats that stimulate actin polymerization. In vitro, the EspF(U) repeat region is capable of binding and activating recombinant derivatives of N-WASP, a host actin nucleation-promoting factor.

EspFU is a translocated EHEC effector that interacts with Tir and N-WASP and promotes Nck-independent actin assembly.

Several microbial pathogens including enteropathogenic E. coli (EPEC) exploit mammalian tyrosine-kinase signaling cascades to recruit Nck adaptor proteins and activate N-WASP-Arp2/3-mediated actin assembly. To promote localized actin "pedestal formation," EPEC translocates the bacterial effector protein Tir into the plasma membrane, where it is tyrosine-phosphorylated and binds Nck.