Fine structural changes in heart muscle in relation of the lengthtension curve.

Structural changes of cardiac tissue in response to L-carnitine supplementation during endurance training in Wistar male rats toxicated by steroid anabolic hormone

Introduction: The aim of this study was to investigate the structural changes of cardiac tissue in response to L-carnitine supplementation and endurance training in Wistar male rats toxicated by steroid anabolic hormone. Methods: 36 male Wistar rats aged 8-12 weeks (weight 195±7.94g) were randomly divided into six groups: Control, Non-treated, Boldenone (5 mg/kg), L-carnitine (100 mg pe...

The Frank--Starling curve.

A basic property of the normal heart is that if its volume is increased, there is an increase in the strength of the contraction. The phenomenon is known as Starling's Law, and as the FrankStarling mechanism. This phenomenon is of great importance. If the heart were unable to increase its output when distended, the distension would become progressively severe. The underlying important relation ...

Estimation of Water Retention Curve for Unsaturated Fine Soils

In order to obtain the soil water retention curve of an unsaturated soil which is defined as the relationship between water content and suction, extensive laboratory tests are essential. These laboratory tests are usually costly and time consuming. Moreover, for most practical problems, it has been found that approximate unsaturated soil properties are adequate for analysis. Thus, empirical pro...

Structural characterization of rat ventricular tissue exposed to the smoke of two types of waterpipe

Objective(s):this study focused on the effect of waterpipe smoke exposure toxicity on the structure of albino rat’s ventricular tissue and their recovery. Materials and Methods: Albino rats were divided into three groups: control, flavored, and unflavored. The control group was exposed to normal air while the flavored and unflavored groups were exposed to waterpipe smoke for a period of 90 days...

  Background & Objective : Heart failure is a clinical syndrome and increases in rate by aging. Because changes in ECG and electrolytes are variable, specific and sometimes independent to the disease with different methods to be diagnosed, in this study we tried to find a way to diagnose them.   Materials & Methods: This is a retrospective descriptive-analytic study. Data was collected from dec...