Soil Application of Selenium in Wheat ( L.) Under Water Stress Improves Grain Quality and Reduces Production Losses.

Selenium (Se) is an essential element for humans. However, much of the world's human population is deficient in this element, which has become a public health problem. This study aimed to evaluate whether applying severe water stress to wheat plants ( L.

New Perspective on the Use of α-Bisabolol for Weed Control.

The indiscriminate use of synthetic herbicides reduces its effectiveness. Bioherbicides produced with metabolites emerge as an alternative to managing weeds. We aimed to analyze the phytotoxic potential of the essential oil of (EOVA) and the α-bisabolol molecule, its main component.

KI Increases Tomato Fruit Quality and Water Deficit Tolerance by Improving Antioxidant Enzyme Activity and Amino Acid Accumulation: A Priming Effect or Relief during Stress?

A water deficit can negatively impact fruit yield and quality, affecting critical physiological processes. Strategies to mitigate water deficits are crucial to global food security. Iodine (I) may increase the efficiency of the antioxidant system of plants, but its role against water deficits is poorly understood.

Soybean Plants Exposed to Low Concentrations of Potassium Iodide Have Better Tolerance to Water Deficit through the Antioxidant Enzymatic System and Photosynthesis Modulation.

Water deficit inhibits plant growth by affecting several physiological processes, which leads to the overproduction of reactive oxygen species (ROS) that may cause oxidative stress. In this regard, iodine (I) is already known to possibly enhance the antioxidant defense system of plants and promote photosynthetic improvements under adverse conditions. However, its direct effect on water deficit responses has not yet been demonstrated.

Nitrogen sources and CO concentration synergistically affect the growth and metabolism of tobacco plants.

The initial stimulation of photosynthesis under elevated CO concentrations (eCO) is often followed by a decline in photosynthesis, known as CO acclimation. Changes in N levels under eCO can have different effects in plants fertilized with nitrate (NO) or ammonium (NH) as the N source. NO assimilation consumes approximately 25% of the energy produced by an expanded leaf, whereas NH requires less energy to be incorporated into organic compounds.

Biomass Accumulation and Cell Wall Structure of Rice Plants Overexpressing a Dirigent-Jacalin of Sugarcane () Under Varying Conditions of Water Availability.

A sugarcane gene encoding a , , was induced under drought stress. To elucidate its biological function, we integrated a -overexpression construction into the rice Nipponbare genome via -mediated transformation. Two transgenic lines with a single copy gene in T were selected and evaluated in both the T and T generations.

Drought tolerance of sugarcane propagules is improved when origin material faces water deficit.

Drought stress can imprint marks in plants after a previous exposure, leading to plant acclimation and a permissive state that facilitates a more effective response to subsequent stress events. Such stress imprints would benefit plants obtained through vegetative propagation (propagules). Herein, our hypothesis was that the propagules obtained from plants previously exposed to water deficit would perform better under water deficit as compared to those obtained from plants that did not face stressful conditions.

Clinical variability of early-onset congenital myasthenic syndrome due to biallelic RAPSN mutations in Brazil.

Mutations in RAPSN are an important cause of congenital myasthenic syndrome (CMS), leading to endplate acetylcholine receptor deficiency. We present three RAPSN early-onset CMS patients (from a Brazilian cohort of 61 CMS patients). Patient 1 and patient 2 harbor the mutation p.

Drought tolerance of sugarcane is improved by previous exposure to water deficit.

Under field conditions, plants are exposed to cycles of dehydration and rehydration during their lifespan. In this study, we hypothesized that sugarcane plants previously exposed to cycles of water deficits will perform better than plants that have never faced water deficits when both are subjected to low water availability. Sugarcane plants were grown in a nutrient solution and exposed to one (1WD), two (2WD) or three (3WD) water deficit cycles.

A common CHRNE mutation in Brazilian patients with congenital myasthenic syndrome.

The most common causes of congenital myasthenic syndromes (CMS) are CHRNE mutations, and some pathogenic allelic variants in this gene are especially frequent in certain ethnic groups. In the southern region of Brazil, a study found the c.130dupG CHRNE mutation in up to 33% of families with CMS.

Physiological Plasticity Is Important for Maintaining Sugarcane Growth under Water Deficit.

The water availability at early phenological stages is critical for crop establishment and sugarcane varieties show differential performance under drought. Herein, we evaluated the relative importance of morphological and physiological plasticity of young sugarcane plants grown under water deficit, testing the hypothesis that high phenotypic plasticity is associated with drought tolerance. IACSP95-5000 is a high yielding genotype and IACSP94-2094 has good performance under water limiting environments.

Reference genes for normalization of qPCR assays in sugarcane plants under water deficit.

Background: Sugarcane ( spp.) is the main raw material for sugar and ethanol production. Among the abiotic stress, drought is the main one that negatively impact sugarcane yield.

Physiological and transcriptional analyses of developmental stages along sugarcane leaf.

Background: Sugarcane is one of the major crops worldwide. It is cultivated in over 100 countries on 22 million ha. The complex genetic architecture and the lack of a complete genomic sequence in sugarcane hamper the adoption of molecular approaches to study its physiology and to develop new varieties.

Short-term physiological changes in roots and leaves of sugarcane varieties exposed to H2O2 in root medium.

The aim of this study was to evaluate the differential sensitivity of sugarcane genotypes to H2O2 in root medium. As a hypothesis, the drought tolerant genotype would be able to minimize the oxidative damage and maintain the water transport from roots to shoots, reducing the negative effects on photosynthesis. The sugarcane genotypes IACSP94-2094 (drought tolerant) and IACSP94-2101 (drought sensitive) were grown in a growth chamber and exposed to three levels of H2O2 in nutrient solution: control; 3 mmol L(-1) and 80 mmol L(-1).

Psychogenic non-epileptic seizures and psychoanalytical treatment: results.

Background: the occurrence of psychogenic non-epileptic seizures (PNES) is estimated to be between 2 to 33 cases in every 100,000 inhabitants. The number of patients with PNES reaches 19% of those treated as epileptics. Patients with PNES are treated as if they had intractable epilepsy, with unsatisfactory results even after medication treatment is used to its maximum.

Voiding dysfunction in patients with neuromyelitis optica spectrum disorders.

Aims: We assessed the lower urinary tract symptoms (LUTS) and urodynamic findings in patients with neuromyelitis optica spectrum disorders (NMO-SD), a recently defined neurological disease.

Methods: We prospectively evaluated seven men and 23 women (mean age 41.1 ± 13.

Existence of a potential neurogenic system in the adult human brain.

Background: Prevailingly, adult mammalian neurogenesis is thought to occur in discrete, separate locations known as neurogenic niches that are best characterized in the subgranular zone (SGZ) of the dentate gyrus and in the subventricular zone (SVZ). The existence of adult human neurogenic niches is controversial.

Methods: The existence of neurogenic niches was investigated with neurogenesis marker immunostaining in histologically normal human brains obtained from autopsies.

Serial and prolonged EEG monitoring in anti-N-Methyl-d-Aspartate receptor encephalitis.

Objective: To describe serial electroencephalographic (EEG) findings of three patients with anti-NMDAR encephalitis.

Methods: Three women (age 15-34years) with confirmed anti-NMDAR encephalitis underwent serial EEG recordings. Continuous EEG for 72h was performed in one case and 3-day video-EEG monitoring was obtained in two cases.

Unilateral central retinal artery occlusion as the sole presenting sign of Susac syndrome in a young man: case report.

We report the case of a 24-year-old man presenting with sudden visual loss in the left eye from a central retinal artery occlusion. An extensive clinical investigation revealed no etiology. Three weeks later, however, the patient developed hearing loss followed by encephalopathy and multiple branch retinal artery occlusions in the right eye.

Cerebral Embolic Activity in a Patient during Acute Crisis of Takayasu's Arteritis.

Takayasu's arteritis is a disease that affects large vessels and may cause neurological symptoms either by stenoses/occlusions or embolisms from vessels with an inflammatory process. Transcranial Doppler (TCD) ultrasound can provide useful information for diagnosis and monitoring during the active phase of the disease. Cerebral embolic signals can be detected by TCD and have been considered a risk factor for vascular events.