Ultrasound findings of acute pancreatitis in children.

Background: Studies systematically documenting US findings in children with acute pancreatitis are limited. Pancreas duct dilation is described as the most reliable finding of acute pancreatitis but this has not been rigorously examined in children.

Objective: To systematically document US findings in children with acute pancreatitis and to define interobserver agreement on those findings.

A GATA4-regulated secretory program suppresses tumors through recruitment of cytotoxic CD8 T cells.

The GATA4 transcription factor acts as a master regulator of development of multiple tissues. GATA4 also acts in a distinct capacity to control a stress-inducible pro-inflammatory secretory program that is associated with senescence, a potent tumor suppression mechanism, but also operates in non-senescent contexts such as tumorigenesis. This secretory pathway is composed of chemokines, cytokines, growth factors, and proteases.

The adaptive immune system is a major driver of selection for tumor suppressor gene inactivation.

During tumorigenesis, tumors must evolve to evade the immune system and do so by disrupting the genes involved in antigen processing and presentation or up-regulating inhibitory immune checkpoint genes. We performed in vivo CRISPR screens in syngeneic mouse tumor models to examine requirements for tumorigenesis both with and without adaptive immune selective pressure. In each tumor type tested, we found a marked enrichment for the loss of tumor suppressor genes (TSGs) in the presence of an adaptive immune system relative to immunocompromised mice.

Genetic interrogation of replicative senescence uncovers a dual role for USP28 in coordinating the p53 and GATA4 branches of the senescence program.

Senescence is a terminal differentiation program that halts the growth of damaged cells and must be circumvented for cancer to arise. Here we describe a panel of genetic screens to identify genes required for replicative senescence. We uncover a role in senescence for the potent tumor suppressor and ATM substrate USP28.

Staphylococcus Alpha-Toxin Action on the Rabbit Iris: Toxic Effects and Their Inhibition.

Purpose: Staphylococcus aureus infection of the anterior chamber can occur after cataract surgery, causing inflammation and extensive damage to the iris. Alpha-toxin, the most potent S. aureus corneal toxin, was tested as a possible mediator of damage to the iris, and alpha-toxin anti-serum and a chemical toxin inhibitor were tested as potential pathology-reducing agents.

β-Thalassemia mutations in Western India: outcome of prenatal diagnosis in a hemoglobinopathies project.

Prenatal diagnosis (PND) is one of the most cost effective preventive methods, but it is available only in the large cities of India. Therefore, we initiated a program that offers PND and allows us to determine the prevalence of various mutations. Pregnant females (n = 111,426) were screened for hemoglobinopathies using complete blood count (CBC) and high performance liquid chromatography (HPLC).

Transient inhibition of primary motor cortex suppresses hand muscle responses during a reactive reach to grasp.

Rapid balance reactions such as compensatory reach to grasp represent important response strategies following unexpected loss of balance. While it has been assumed that early corrective actions arise from subcortical networks, recent research has prompted speculation about the potential role of cortical involvement. With reach to grasp reactions there is evidence of parallels in the control of perturbation-evoked reaching versus rapid voluntary reaching.

Nasopharyngeal carriage of methicillin-resistant Staphylococcus aureus: incidence and outcomes in pregnant women.

Context: Infections due to methicillin-resistant Staphylococcus aureus (MRSA), especially community-acquired MRSA, have increased substantially during the past decade. The optimal protocols for screening patients, particularly during pregnancy, have not been determined.

Objectives: To determine the incidence of nasopharyngeal carriage of MRSA in pregnancy as well as whether there was a correlation between positive maternal screening test results and an increased risk of adverse maternal or neonatal outcomes, including neonatal carriage of MRSA.

Evidence for a functional role of the molecular chaperone clusterin in amyloidotic cardiomyopathy.

Molecular chaperones, including the extracellular protein clusterin (CLU), play a significant role in maintaining proteostasis; they have a unique capacity to bind and stabilize non-native protein conformations, prevent aggregation, and keep proteins in a soluble folding-competent state. In this study, we investigated amyloid-infiltrated cardiac tissue for the presence of CLU and measured serum levels of CLU in patients with and without amyloidotic cardiomyopathy (CMP). Cardiac tissues containing amyloid deposits composed of either transthyretin (TTR) or Ig light chain from nine patients with amyloidotic CMP were examined for the presence of CLU using immunohistochemical techniques.

The critical role of the constant region in thermal stability and aggregation of amyloidogenic immunoglobulin light chain.

Light chain (LC) amyloidosis (AL) is a fatal disease in which immunoglobulin LC deposit as fibrils. Although the LC amyloid-forming propensity is attributed primarily to the variable region, fibrils also contain full-length LC comprised of variable-joining (V(L)) and constant (C(L)) regions. To assess the role of C(L) in fibrillogenesis, we compared the thermal stability of full-length LC and corresponding V(L) and C(L) fragments.

Decreased waiting periods in a public pregnancy termination clinic.

Background: In our public hospital, first-trimester pregnancy termination historically had been performed in an operating room by suction curettage on a separate day following the initial clinic visit. To increase efficiency, we instituted three changes over a 2-year period: (a) pregnancy termination procedures were relocated to the outpatient area; (b) same-day service was initiated; and (c) manual vacuum aspiration was introduced. Our primary objective was to assess the effects of these changes on the waiting period in days from the intake visit to the day of termination procedure.