Publications by authors named "Perelman A"

Perinatal mood and anxiety disorders (PMADs) are one of the most common complications in the peripartum period. The Council for Resident Education in Obstetrics and Gynecology (CREOG) includes diagnosis and management of PMADs as educational objectives, but no formal curriculum for trainees exists. Consequently, providers often struggle to identify and treat these disorders.

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Objective: This study aimed to evaluate the rates of vaccination against infectious diseases (Tetanus, Diphtheria, and Pertussis [Tdap] and influenza) in pregnancy during the coronavirus disease 2019 (COVID-19) pandemic compared to contemporary historical controls.

Study Design: This was a retrospective cohort study comparing rates of Tdap and influenza vaccination in pregnant people who received care at NYU Langone Health and delivered from September 1, 2020, to January 31, 2021 ("COVID cohort") to the same period the prior year ("2019 cohort"). Demographic information, trimester of initiation of prenatal care, insurance status, and medical comorbidities were evaluated.

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Article Synopsis
  • - TEG (thromboelastography) is a test that helps assess blood clotting in patients experiencing postpartum hemorrhage (PPH) and may rapidly identify coagulopathy, which is critical due to the time needed to prepare cryoprecipitate for treatment.
  • - A study analyzed 680 patients with PPH, comparing TEG results to standard coagulation tests, revealing that TEG variables significantly correlated with coagulation parameters.
  • - Findings suggest that TEG can effectively reflect coagulopathy in ongoing PPH cases, as those with TEG assessments had greater blood loss and more interventions than those without.
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The incidence of esophageal cancer (EC) is on the rise. With the distinct subtypes of adenocarcinoma and squamous cell carcinoma comes specific risk factors, and as a result, people of certain regions of the world can be more prone to a subtype. For example, squamous cell carcinoma of the esophagus has the highest incidence in eastern Africa and eastern Asia, with smoking being a major risk factor, whereas adenocarcinoma is more prevalent in North America and western Europe, with gastroesophageal reflux disease being a leading risk factor.

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Acute pancreatitis (AP) accounts for over 230 000 US and 28 000 UK hospital admissions annually. Abdominal pain is the most common presenting symptom in AP but may not reflect severity. The clinical challenge is identifying the 20% of patients in whom AP will be severe.

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Recognizing the pervasive impact of popular media on reproductive-aged women, we sought to characterize the depiction of age-related fertility decline in widely consumed media. We performed a quantitative and qualitative analysis of top read print magazines targeting reproductive-aged women. Primary outcome measures include celebrity age at time of pregnancy, content related to assisted reproductive technology (ART) and donor gametes, and mention of risks related to pregnancy at advanced maternal age (AMA).

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Background: The metabolite content of a seed and its ability to germinate are determined by genetic makeup and environmental effects during development. The interaction between genetics, environment and seed metabolism and germination was studied in 72 tomato homozygous introgression lines (IL) derived from Solanum pennelli and S. esculentum M82 cultivar.

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There have been no reports of successful resuscitation using nitroglycerin (NTG) for cardiac arrest due to definitive coronary vasospasm. A 42-year-old female was brought to the Emergency Department in ventricular fibrillation after being found collapsed with the consumption of misoprostol. NTG, a potent coronary arterial dilator, not typically used in the management of cardiac arrest, was administered after 27 min of resuscitation efforts following advanced cardiac life support.

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These are the reflections of a retired physician who was introduced to cellular physiology in 1947 at the University of Pennsylvania. I majored in Zoology. I took the required major courses, which were interesting but not exciting.

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Oxidative stress directly correlates with the early onset of vascular complications and the progression of peripheral insulin resistance in diabetes. Accordingly, exogenous antioxidants augment insulin sensitivity in type 2 diabetic patients and ameliorate its clinical signs. Herein, we explored the unique structural and functional properties of the abiotic cyclic D,L-α-peptide architecture as a new scaffold for developing multifunctional agents to catalytically decompose ROS and stimulate glucose uptake.

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Mitochondrial membrane potential provides a valuable indicator of cells' health and functional status. Cytometry- and microscopy-based analyses, in combination with fluorescent probes, are widely used to study mitochondrial behavior related to cellular pathways, most notably - apoptosis. The cyanine dye JC-1 (5,5',6,6'-tetrachloro-1,1',3,3'-tetraethylbenzimi- dazolylcarbocyanine iodide) facilitates discrimination of energized and deenergized mitochondria because the normally green fluorescent dye forms red fluorescent aggregates when concentrated in energized mitochondria in response to their higher membrane potential.

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Imbalanced homeostasis and oligomerization of the amyloid-β (Aβ) peptide in the brain are hallmarks of Alzheimer's disease (AD). Microglia and macrophages play a critical role in the etiology of AD either by clearing Aβ from the brain or inducing inflammation. Recent evidence suggests that clearance of Aβ by microglia/macrophages via the phagocytic pathway is defective in AD, which can contribute to the accumulation of Aβ in the brain.

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While tightly regulated, bacterial cell morphology may change substantially in response to environmental cues. Here we describe such changes in the cyanobacterium Synechococcus sp. strain PCC7942.

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Cys-loop receptors are pentameric ligand-gated ion channels (pLGICs) that bind neurotransmitters to open an intrinsic transmembrane ion channel pore. The recent crystal structure of a prokaryotic pLGIC from the cyanobacterium Gloeobacter violaceus (GLIC) revealed that it naturally lacks an N-terminal extracellular α helix and an intracellular domain that are typical of eukaryotic pLGICs. GLIC does not respond to neurotransmitters acting at eukaryotic pLGICs but is activated by protons.

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The biocompatible and biodegradable properties of protein microspheres and the recent advances in their preparation have generated considerable interest of utilizing these core-shell structures for drug delivery and diagnostic applications. However, effective targeting of protein microspheres to desirable cells or loci still remains a challenge. Here, we describe for the first time a facile one-pot sonochemical approach for covalent modification of protein microspheres made from serum albumin; the surface of which is covalently decorated with a short recognition peptide to target amyloid-β (Aβ) as the main pathogenic protein in Alzheimer's disease (AD).

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Training with inedible food in Aplysia increased expression of the transcription factor C/EBP in the buccal ganglia, which primarily have a motor function, but not in the cerebral or pleural ganglia. C/EBP mRNA increased immediately after training, as well as 1-2 h later. The increased expression of C/EBP protein lagged the increase in mRNA.

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Human herpesvirus 8 (HHV-8), also known as Kaposi sarcoma (KS)-associated herpesvirus, is causally implicated in all forms of KS, including the classic form. Our objective was to investigate the relationship between HHV-8 load in peripheral blood mononuclear cells (PBMCs) and the stage of the disease in classic KS (CKS) patients. HHV-8 loads were measured in 41 PBMC samples from CKS patients with different Krigel-based classification stages using a quantitative real-time polymerase chain reaction assay.

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It has been hypothesized that sigma(1) receptors (sigma(1)Rs) are involved in the effects of cocaine abuse. Many in vitro and in vivo studies have already indicated an influence of sigma(1)R ligands on dopaminergic transmission; however, the direct effect on the brain is poorly understood. Herein we describe the effects of cocaine and the selective dopamine-1 receptor (D(1)R) agonist, (+)-SKF38393, on gene expression of the sigma(1)R in a human fetal astrocyte cell line (SVG cells).

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Degradation of the cyanobacterial light-harvesting antenna, the phycobilisome, is a general acclimation response that is observed under various stress conditions. In this study we identified a novel mutant of Synechococcus elongatus PCC 7942 that exhibits impaired phycobilisome degradation specifically during nitrogen starvation, unlike previously described mutants, which exhibit aberrant degradation under nitrogen, sulfur, and phosphorus starvation conditions. The phenotype of the new mutant, AldOmega, results from inactivation of ald (encoding alanine dehydrogenase).

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PsbU is a subunit of the extrinsic complex attached to the core of photosystem II. A PsbU-mutant of Synechococcus PCC 7942 was isolated based on its elevated resistance to externally applied oxidative stress. PsbU-mutant exhibits fast rates of degradation of the photosystem II core protein, D1, under sub-saturating as well as high-light conditions.

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Adjustment of photosynthetic light harvesting to ambient conditions is essential to allow efficient energy capturing and to prevent surplus excitation and the cellular damage resulting from it. Degradation of the cyanobacterial light harvesting complex, the phycobilisome, is a general acclimation response occurring under various stress conditions. This study identifies a novel component, NblC, which mediates phycobilisome degradation under nitrogen, sulphur and phosphorus starvation.

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