Fermented lactotripeptides-containing milk lowers daytime blood pressure in high normal-to-mild hypertensive subjects.

This study shows that consumption of fermented lactotripeptides (LTPs)-containing milk may have an acute daytime effect on blood pressure that appeared sustained with daily intake over a period of 4 weeks. Angiotensin 1-converting enzyme (ACE) inhibition by LTPs could not be confirmed in plasma.

[Evoked otoacoustic emissions as a screening test for hearing evaluation in newborn and premature infants?]. / Evozierte otoakustische Emissionen als Screeningtest für die Hörprüfung bei Neu- und Frühgeborenen?

The purpose of this study was the evaluation of evoked otoacoustic emissions (EOAE) for the screening of infant hearing. EOAE and brainstem-evoked response audiometry (BERA) were performed in 40 infants at a special care unit at the Universitäts-Klinik, Göttingen. Both examinations were performed under non-optimal conditions, reflecting a realistic screening situation. The purpose was to determine robust analysis criteria and possible error sources. A comparison of both tests shows that sensitivity and specificity are insufficient for reliable screening. The EOAE test does not yield the threshold of hearing. There is no sharp boundary with the BERA threshold for the detectability of an EOAE. Sensitivity and specificity have not been accurately determined so far due to the relatively small number of infants with impaired hearing tested. Nevertheless, the results show that EOAE should be applied as a supplement to conventional audiometry for infants. It is capable of excluding conductive and severe cochlear hearing losses and is by itself not a reliable screening test.

[Quantity of weapon oils at the target as a function of shooting sequence and firing distance]. / Die Waffenölmenge am Ziel als Funktion der Schussreihenfolge und der Schussentfernung.

Five widely used gun oils were tested to see if they could be identified by gas chromatography. All oils in the test produced characteristic gas chromatograms and the test was highly sensitive in tracing the oils. Seven different weapons and various types of ammunition were used to perform firing tests involving an oil sold under the brand name of "Gun pro." The weapons were oiled and wiped dry and subsequently discharged at a cotton cloth target. Series of shots were fired from a maximal distance of 3 m, and the weapon was not cleaned between shots. Grease marks and powder-burn traces were extracted separately and the extracts, after adding an internal standard, were investigated by means of gas chromatography (gas chromatography unit by Perkin and Elmer). The largest quantities of oil were transmitted by indoor ammunition fired from a small-bore rifle. At a firing range of 20 cm, a decrease in the oil quantity could be observed up to the fourth discharge. When the firing range was varied there was a decrease in the oil quantity up to a distance of 80 cm. The first and the second discharge could be distinguished up to a firing range of 60 cm. With increasing force of the projectile and a decrease in the interior length of the gun barrel, the quantity of oil conveyed to the target also decreased. Additionally, the identifiability of the oil was investigated after firing at several layers of cloth and after storage of the samples (no losses occurred after a 1-month storage period).(ABSTRACT TRUNCATED AT 250 WORDS)