Search results for "Tonicity"
showing 8 items of 28 documents
�ber die Wirkung hypotoner Salzl�sungen auf das Rattenzwerchfell
1954
Es wird die Wirkung hypotoner Salzlosungen auf das isolierte Rattenzwerchfell beschrieben. Auf 5/10–6/10 der Isotonie verdunnte Tyrodelosungen fuhren an Muskeln, die bereits langere Zeit im Versuch sind, zu einer dauernden Verstarkung der elektrisch ausgelosten Kontraktionen („hypotoner Effekt“). Mit Saccharose auf Warmbluterisotonie erganzte hypotone Salzlosungen zeigen diesen Effekt nicht. Vermehrung des Kaliums oder Calciums im Austausch gegen Natrium bei erhaltener Hypotonie hemmt den „hypotonen Effekt“, Senkung der Badetemperatur hebt ihn ebenfalls auf.
Gef��- und Tubulusweite der Niere bei osmotischer und Wasserdiurese und nach Theophyllininjektionen
1960
The effects of i.v. administered hypertonic solutions (6-fold isotonic solutions of NaCl, sodium sulfate, glucose and mannitol) theophylline (25 mg/kg) and vasopressin (50 mE/kg) on the blood pressure, cortical kidney vessel blood content and tubulus dilatation were studied in large groups of mice. The blood pressure and blood content effects after i.p. injection of 10% NaCl solution and the blood content during water diuresis were also investigated. The kidney vessel blood content was determined through benzidine stained erythrocytes in kidney slices. An increase in blood content as compared to corresponding controls was consistently noted after i.v. injection of 6-fold isotonic solutions …
Nonlinear scalar field equations with general nonlinearity
2018
Consider the nonlinear scalar field equation \begin{equation} \label{a1} -\Delta{u}= f(u)\quad\text{in}~\mathbb{R}^N,\qquad u\in H^1(\mathbb{R}^N), \end{equation} where $N\geq3$ and $f$ satisfies the general Berestycki-Lions conditions. We are interested in the existence of positive ground states, of nonradial solutions and in the multiplicity of radial and nonradial solutions. Very recently Mederski [30] made a major advance in that direction through the development, in an abstract setting, of a new critical point theory for constrained functionals. In this paper we propose an alternative, more elementary approach, which permits to recover Mederski's results on the scalar field equation. T…
SNAT2 silencing prevents the osmotic induction of transport system A and hinders cell recovery from hypertonic stress.
2005
AbstractUnder hypertonic conditions the induction of SLC38A2/SNAT2 leads to the stimulation of transport system A and to the increase in the cell content of amino acids. In hypertonically stressed human fibroblasts transfection with two siRNAs for SNAT2 suppressed the increase in SNAT2 mRNA and the stimulation of system A transport activity. Under the same condition, the expansion of the intracellular amino acid pool was significantly lowered and cell volume recovery markedly delayed. It is concluded that the up-regulation of SNAT2 is essential for the rapid restoration of cell volume after hypertonic stress.
Monotonicity Formulas for Harmonic Functions in RCD(0,N) Spaces
2023
We generalize to the RCD(0,N) setting a family of monotonicity formulas by Colding and Minicozzi for positive harmonic functions in Riemannian manifolds with nonnegative Ricci curvature. Rigidity and almost rigidity statements are also proven, the second appearing to be new even in the smooth setting. Motivated by the recent work in Agostiniani et al. (Invent. Math. 222(3):1033–1101, 2020), we also introduce the notion of electrostatic potential in RCD spaces, which also satisfies our monotonicity formulas. Our arguments are mainly based on new estimates for harmonic functions in RCD(K,N) spaces and on a new functional version of the ‘(almost) outer volume cone implies (almost) outer metric…
Multidimensional Health Modelling: Association between Socioeconomic Factors and Health in Latvia
2012
This paper proposes new approach for modelling self-assessed health. We find that the concept of health is too complicated to measure effects of health determinants using a one-dimensional econometric model. We apply two-dimensional stereotype logistic model that allows capturing nonmonotonicity in effects of factors and revealing significant effects that remain unrevealed if single dimension models, such as ordered logit or ordered probit, are used. Modelling self-assessed health using multi-dimensional stereotype logit provides higher model goodness of fit and quality measures in comparison to ordered probit model. Multi-dimensional stereotype logit is applied to estimate association betw…
Botulinum toxin associated with fissurectomy and anoplasty for hypertonic chronic anal fissure: A case-control study.
2021
BACKGROUND Lateral internal sphincterotomy is still the approach of choice for the treatment of chronic anal fissure (CAF) with internal anal sphincter (IAS) hypertonia, but it is burdened by high-risk postoperative faecal incontinence (FI). Sphincter saving procedures have recently been reconsidered as treatments to overcome this risk. The most employed procedure is fissurectomy with anoplasty, eventually associated with pharmacological sphincterotomy. AIM To evaluate whether fissurectomy and anoplasty with botulinum toxin injection improves the results of fissurectomy and anoplasty alone. METHODS We conducted a case-control study involving 30 male patients affected by CAF with hypertonic …
Multidimensional health modeling: Association between socioeconomic and psychosocial factors and health in Latvia
2009
This research aims at estimating association between socioeconomic and psychosocial factors on the one hand and health in Latvia on the other hand. While information on association between socioeconomic determinants of population health in Latvia is scarce, effect of psychosocial resources on individual health in this country hasn’t been estimated before. We find empirical support for the association between different psychosocial factors and physical health in Latvia. This paper proposes new approach for modelling self-assessed health. We find that the concept of health is too complicated to measure effects of health determinants using a one-dimensional econometric model. We apply two-dime…