2,431 results match your criteria: "Houston Medical School[Affiliation]"

Macrophage-derived netrin-1 drives adrenergic nerve-associated lung fibrosis.

J Clin Invest

January 2021

Section of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA.

Fibrosis is a macrophage-driven process of uncontrolled extracellular matrix accumulation. Neuronal guidance proteins such as netrin-1 promote inflammatory scarring. We found that macrophage-derived netrin-1 stimulates fibrosis through its neuronal guidance functions.

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Article Synopsis
  • The study investigated the effectiveness of fosmetpantotenate in improving symptoms and stabilizing disease progression for patients with Pantothenate kinase-associated neurodegeneration (PKAN), a condition with no approved treatments.
  • Conducted over 24 weeks, the randomized, double-blind, placebo-controlled trial included 84 patients aged 6 to 65 with specific genetic mutations, comparing the effects of a 300 mg oral dose of fosmetpantotenate against a placebo.
  • Results showed that fosmetpantotenate was safe; however, it did not demonstrate a significant improvement in patient function as measured by the PKAN-Activities of Daily Living scale.
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Gene therapy has the potential to maintain therapeutic blood clotting factor IX (FIX) levels in patients with hemophilia B by delivering a functional human F9 gene into liver cells. This phase 1/2, open-label dose-escalation study investigated BAX 335 (AskBio009, AAV8.sc-TTR-FIXR338Lopt), an adeno-associated virus serotype 8 (AAV8)-based FIX Padua gene therapy, in patients with hemophilia B.

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Objective: The Scleroderma: Cyclophosphamide or Transplantation (SCOT) trial demonstrated clinical benefit of haematopoietic stem cell transplant (HSCT) compared with cyclophosphamide (CYC). We mapped PBC (peripheral blood cell) samples from the SCOT clinical trial to scleroderma intrinsic subsets and tested the hypothesis that they predict long-term response to HSCT.

Methods: We analysed gene expression from PBCs of SCOT participants to identify differential treatment response.

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Objectives: To characterise the safety and tolerability of nintedanib and the dose adjustments used to manage adverse events in patients with systemic sclerosis-associated interstitial lung disease (SSc-ILD).

Methods: In the SENSCIS trial, patients with SSc-ILD were randomised to receive nintedanib 150 mg two times per day or placebo. To manage adverse events, treatment could be interrupted or the dose reduced to 100 mg two times per day.

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Neural Bases of Cognitive Impairments in Post-Traumatic Stress Disorders: A Mini-Review of Functional Magnetic Resonance Imaging Findings.

Front Psychiatry

March 2020

Department of Neurosciences and Mental Health, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.

Introduction: Post-Traumatic Stress Disorder (PTSD) is often associated with impairments in emotional and cognitive domains. Contrarily to the emotional sphere, neural basis underpinnings to cognitive impairments are still not well known.

Methods: We performed a bibliographic search on PUBMED of all the studies investigating the cognitive impairments in PTSD individuals.

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Asthma is a chronic airway disorder with variable/recurring symptoms, airflow obstruction, bronchial hyperresponsiveness, and an inflammation. The expert panel report of the National Heart Lung and Blood Institute recommends asthma screening in sickle cell disease (SCD); however, specific approach is not mentioned. We hypothesize that the breathmobile case identification survey (BCIS) is a valid asthma screening tool in children with SCD.

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Microstructural white matter alterations in borderline personality disorder: A minireview.

J Affect Disord

March 2020

Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy; Department of Neurosciences and Mental Health, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy. Electronic address:

Background: Borderline personality disorder (BPD) affects 1-5% of the population and is characterized by a complex symptomatology and selective functional impairments. Although brain imaging studies have contributed to better characterizing the pathophysiological mechanisms underlying BPD, the white matter (WM) deficits associated with this disorder are still unclear. Therefore, the present review aims at providing an overview of the findings emerged from the available diffusion tensor imaging (DTI) studies on BPD.

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The cartilage of joints, such as meniscus and articular cartilage, is normally long lasting (i.e., permanent).

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Pseudomonas aeruginosa infections are increasingly multidrug resistant and cause healthcare-associated pneumonia, a major risk factor for acute lung injury (ALI)/acute respiratory distress syndrome (ARDS). Adenosine is a signaling nucleoside with potential opposing effects; adenosine can either protect against acute lung injury via adenosine receptors or cause lung injury via adenosine receptors or equilibrative nucleoside transporter (ENT)-dependent intracellular adenosine uptake. We hypothesized that blockade of intracellular adenosine uptake by inhibition of ENT1/2 would increase adenosine receptor signaling and protect against P.

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Vitamin D and Selenium in a Thyroid Eye Disease Population in Texas.

Neuroophthalmology

November 2019

Department of Ophthalmology, Blanton Eye Institute, Houston Methodist Hospital, Houston, Texas, USA.

There is growing evidence of thyroid eye disease association with nutritional deficiencies including selenium and vitamin D. We conducted a retrospective chart review of all patients with clinical diagnosis of TED seen at our clinic from 2016 to 2017. Thirty-five patients met inclusion criteria and had serum 25-hydroxyvitamin D levels available, and 19 had selenium levels available.

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Submental flap practice patterns and perceived outcomes: A survey of 212 AHNS surgeons.

Am J Otolaryngol

April 2020

Department of Otolaryngology-Head and Neck Surgery, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, United States of America.

Objectives: To describe American Head and Neck Society (AHNS) surgeon submental flap (SMF) practice patterns and to evaluate variables associated with SMF complications.

Methods: The design is a cross-sectional study. An online survey was distributed to 782 AHNS surgeons between 11/11/16 and 12/31/16.

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Background: Doppler pressure gradients (PGs) are routinely used as a surrogate for catheter peak-to-peak gradient (PPG) for referring pediatric patients with aortic stenosis (AS), pulmonary stenosis (PS), and coarctation of the aorta (CoA) for intervention but do not always predict the catheter PPG accurately, which results in misclassification of lesion severity. We hypothesized that recovered pressure (RP) accounts for the discrepancy between Doppler PG and catheter PPG. We aimed to study the occurrence of clinically significant RP in AS, PS, and CoA.

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Background: Hyperactivity of the mechanistic target of rapamycin complex 1 (mTORC1) is implicated in a variety of diseases such as cancer and diabetes. Treatment may benefit from effective mTORC1 inhibition, which can be achieved by preventing arginine from disrupting the cytosolic arginine sensor for mTORC1 subunit 1 (CASTOR1)-GTPase-activating proteins toward RAGS subcomplex 2 (GATOR2) complex through binding with CASTOR1. An attractive idea is to determine analogues of arginine that are as competent as arginine in binding with CASTOR1, but without disrupting the CASTOR1-GATOR2 interaction.

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Mindfulness-based interventions in the early phase of affective and non-affective psychoses: Special Section on "Translational and Neuroscience Studies in Affective Disorders" Section Editor, Maria Nobile MD, PhD.

J Affect Disord

February 2020

Department of Neuroscience and Mental Health, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Psychiatry and Behavioural Sciences, University of Texas at Houston Medical School, Houston, TX, USA. Electronic address:

Background: In the last 10 years, psychological approaches based on mindfulness techniques have been proposed for the management of psychotic experiences.

Method: In this brief review we summarized, to our knowledge for the first time, published studies on mindfulness-based interventions (MBIs) applied to the early phase of major psychoses (affective and non-affective).

Results: Despite the great variability in terms of MBIs protocols, available studies on young people at risk to develop or with a first episode of psychosis suggest MBIs as a feasible, well-tolerated and effective approach in ameliorating symptoms, functioning, emotion regulation, and finally reducing the psychological distress associated with the onset of mania and/or psychotic experience.

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Stunting, defined as height-for-age score equal to or lower than -2, is associated with increased childhood mortality, cognitive impairment, and chronic diseases. The aim of the study was to investigate the relationship between linear growth, intestinal damage, and systemic inflammation in infants at risk of stunting. We followed up 78 infants aged 5-12 months living in rural areas of Peru for 6 months.

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Can Machine Learning help us in dealing with treatment resistant depression? A review.

J Affect Disord

December 2019

Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Department of Neurosciences and Mental Health, Milan, Italy; University of Milan, Department of Pathophysiology and Transplantation, Milan, Italy. Electronic address:

Background: About one third of patients treated with antidepressant do not show sufficient symptoms relief and up to 15% of patients remain symptomatic even after multiple trials are applied, configuring a state called treatment resistant depression (TRD). A clear definition of this state and the understanding of underlying mechanisms contributing to chronic disability caused by major depressive disorder is still unknown. Therefore, Machine Learning (ML) techniques emerged in the last years as interesting approaches to deal with such complex problems.

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A focus on valproate and cognitive deficits in Bipolar Disorders: A mini-review: Special Section on "Translational and Neuroscience Studies in Affective Disorders" Section Editor, Maria Nobile MD, PhD.

J Affect Disord

January 2020

Department of Neurosciences and Mental Health, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy; Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy. Electronic address:

Background: Cognitive deficits represent a core feature of Bipolar Disorder (BD), which seem to characterize this disorder regardless of the mood phase. However, the role of pharmacological treatment in determining cognitive alterations is still not clear. Indeed, although drugs improve cognition by targeting mood symptoms, they could also carry their own cognitive side effects.

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Acute myocardial infarction (AMI) remains a leading cause of morbidity and mortality. Pioneering preclinical work reported by Peter Maroko and Eugene Braunwald in 1971 identified oxygen supply and demand are primary determinants of myocardial infarct size in the setting of a heart attack. Since the 1950s, advances in mechanical engineering led to the development of short-term circulatory support devices that range from pulsatile to continuous flow pumps.

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Effects of olanzapine during cognitive and emotional processing in schizophrenia: A review of functional magnetic resonance imaging findings.

Hum Psychopharmacol

May 2019

Department of Neurosciences and Mental Health, Fondazione IRCCS Ca'Granda, Ospedale Maggiore Policlinico, Milan.

Objective: Olanzapine is an atypical antipsychotic that is widely used in the treatment of schizophrenia and has shown some degree of efficacy on negative and cognitive symptoms. We aimed to review the effects of olanzapine treatment on brain regions that are directly involved in cognitive and emotional processing.

Methods: We used the PubMed database to perform a bibliographic search on functional magnetic resonance imaging studies that investigated the effects of olanzapine treatment on neural activity in patients with schizophrenia during cognitive and emotional tasks.

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Background: PD diagnosis is based primarily on clinical criteria and can be inaccurate. Biological markers, such as α-synuclein aggregation, that reflect ongoing pathogenic processes may increase diagnosis accuracy and allow disease progression monitoring. Though α-synuclein aggregation assays have been published, reproducibility, standardization, and validation are key challenges for their development as clinical biomarkers.

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Here, we describe a detailed protocol to set up the αS-PMCA assay using αS synthetic aggregates in buffer and to accurately detect endogenous αS aggregates from human CSF samples. Given the amplificative nature of the technique, minute amounts of misfolded protein aggregates circulating in human bodily fluids can be multiplied and thereafter detected by more conventional methods, such as immune assays or fluorescence. Following these principles, αS-PMCA was standardized for the highly sensitive and specific detection of αS misfolded aggregates in cerebrospinal fluid (CSF) of patients with synucleinopathies.

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A 29-year-old male with a history of pilocytic astrocytoma status post-multiple ventriculoperitoneal shunt (VPS) revisions presented with vision loss, ocular motor deficits, and headaches. His shunt was revised but he experienced persistent vision loss despite resolution of his headaches and diplopia. Magnetic resonance imaging (MRI) of the head revealed hydrocephalus and T2 hyperintensity consistent with transependymal oedema surrounding the midbrain, pons, and optic apparatus.

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