Airborne organic micropollutant concentrations in mosses and humus as indicators for local versus long-range sources.

The concentrations of HCB, PCB, and PAH in epiphytic mosses (Hylocomium splendens and Pleurozium schreberi) and forest humus were used to study the atmospheric exposure of conferous forests in a region in central Sweden. Air concentrations of HCB and PCB were monitored around an expected source. Moss contamination was used as a short-term exposure indicator, and humus contamination was assumed to indicate long-term exposure to HCB, PCB, and PAH.

Lund University and its neurobiological traditions.

Lund University was founded in 1666 as part of a strategy to assimilate the province of Scania in southern Sweden, which had been obtained from Denmark after a war ending in 1658. The present main building was erected in 1882. The University Hospital and the medical departments are located in the campus area northeast of the building.

Fluorescein angiography and distal arterial pressure in patients with arterial disease of the legs.

Fluorescein angiography (FA) of the foot soles was performed in 119 patients with arterial disease of the legs. Fluorescein was injected rapidly intravenously and sequential photographs were taken of the foot soles. Densitometric measurements were performed on three areas of each foot image: the big toe, the foot pad (just proximal to the little toe) and the heel.

Effect of the calcium antagonists felodipine and nimodipine on cortical blood flow in the spontaneously hypertensive rat.

We studied the effect of the dihydropyridine calcium antagonists felodipine nimodipine on perfusion of the cerebral cortex in the spontaneously hypertensive rat (SHR). Nimodipine and felodipine were infused in equipotent doses in chloralose-anaesthetized SHR. During the infusion of a low and an intermediate dose of felodipine, mean arterial blood pressure was lowered to 90.

Nitroglycerin and arterial compliance.

The primary effect of nitrates on the circulatory system is a relaxation of capacitance vessels on the venous and arterial side, while dilatation of resistance vessels (arterioles) is a secondary phenomenon, or occurs only at higher doses. Relaxation of arteries may augment flow in conditions where these vessels offer an increased resistance due to e.g.

Vasoactive drugs and elastic properties of human arteries in vivo, with special reference to the action of nitroglycerine.

Pulsatile changes in the volume of an arm segment were recorded with an air-filled plethysmograph and related to intra-arterial blood pressure. Alterations in transmural arterial pressure were obtained by changing the pressure in a large chamber surrounding the entire arm. Arterial compliance values were calculated in late diastole when pressure and volume changes were slow.

Blood leakage and melphalan leakage from the perfusion circuit during regional hyperthermic perfusion for malignant melanoma.

In regional hyperthermic perfusion with melphalan for patients with malignant melanoma of the leg, plasma leakage between the perfusion circuit and the systemic circulation was 4-7 ml X min-1. The melphalan concentration in the perfusate was biphasic, with half-lives of 8-12 mins for the initial phase and 19-28 mins for the second phase, after the first dose. After a second dose, the corresponding values were 11-13 and 26-34 mins.

Double blind comparison between iohexol and metrizoate in phlebography of the lower limb.

A new, non-ionic low osmolar contrast medium, iohexol 240 mg I/ml, has been tested in a randomized double blind parallel investigation versus meglumine-Ca metrizoate 200 mg I/ml. The study was performed to evaluate the suitability of the contrast medium in phlebography. No post-phlebographic complications were seen in the 24 patients examined with iohexol 240 mg I/ml or in 8 patients examined with iohexol 300 mg I/ml.

Thermography in the diagnosis of deep venous thrombosis. A comparison with 99Tcm-plasmin test, clinical diagnosis and phlebography.

Thermography, clinical examination and 99Tcm-plasmin test were performed in 112 patients and compared with phlebography. The study population consists of consecutive outpatients with symptoms compatible with deep venous thrombosis, who presented during regular clinic hours. Scoring systems were constructed for the clinical and thermographic evaluation.

Non-invasive determination of the distribution of cardiac output in man at rest and during exercise.

The distribution of cardiac output, as expressed by the regional uptake of thallium-201 following injection, has been studied by whole body scanning with a gamma-camera in six healthy persons and eight patients with aortic valvular disease. In the patients, cardiac output at rest and during exercise was also measured by the dye dilution technique. Combining the values of cardiac output and regional thallium uptake enabled the calculation of organ blood flow.