Protein Level Quantification Across Fluorescence-based Platforms.

Biological processes are dependent on protein concentration and there is an inherent variability among cells even in environment-controlled conditions. Determining the amount of protein of interest in a cell is relevant to quantitatively relate it with the cells (patho)physiology. Previous studies used either western blot to determine the average amount of protein per cell in a population or fluorescence intensity to provide a relative amount of protein.

In situ Quantification of Cytosine Modification Levels in Heterochromatic Domains of Cultured Mammalian Cells.

Epigenetic modifications of DNA, and especially cytosine, play a crucial role in regulating basic cellular processes and thereby the overall cellular metabolism. Their levels change during organismic and cellular development, but especially also in pathogenic aberrations such as cancer. Levels of respective modifications are often addressed in bulk by specialized mass spectrometry techniques or by employing dedicated ChIP-seq protocols, with the latter giving information about the sequence context of the modification.

Reverse Cardiac Remodeling: A Marker of Better Prognosis in Heart Failure.

In heart failure syndrome, myocardial dysfunction causes an increase in neurohormonal activity, which is an adaptive and compensatory mechanism in response to the reduction in cardiac output. Neurohormonal activity is initially stimulated in an attempt to maintain compensation; however, when it remains increased, it contributes to the intensification of clinical manifestations and myocardial damage. Cardiac remodeling comprises changes in ventricular volume as well as the thickness and shape of the myocardial wall.

Molecular cloning and characterization of a cassava translationally controlled tumor protein gene potentially related to salt stress response.

Cassava (Manihot esculenta Crantz) is one of the most important tropical crops showing tolerance to abiotic stress and adaptations to a wide range of environmental conditions. Here, we aimed to isolate and characterize the full-length cDNA and genomic sequences of a cassava translationally controlled tumor protein gene (MeTCTP), and evaluate its potential role in response to salt stress. The MeTCTP full-length cDNA sequence encodes for a deduced protein with 168 amino acid residues, with theoretical isoelectric point and molecular weight of 4.

Constrictive pericarditis with extensive calcification.

A patient with signs and symptoms of right heart failure of unknown etiology was referred to a referral hospital in the eastern area of the city of São Paulo with a diagnosis of calcified constrictive pericarditis and was treated by surgery. This pathology is characterized by an irreversible process of pericardium calcification, and surgery is the only alternative to control the symptoms and improve patients' quality of life. This case drew special attention due to the extensive calcification involving the interventricular septum.