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Biomedical subjects

B L Jin

Publications and source records attributed to B L Jin.

8 recordsLinked to original sources
PubMed1994

[The quantitative and qualitative analysis fro submandibular gland of human being.].

30 cases of submandibular gland tissue were determined quantitatively in this article.It is noticed that there was no great change during and after the birth .But at the adolesence stage,the data began to change was steady in adult state.At pressenium,the change speed of mean was faster.Observation under microscope:the submandibular gland in 7-8 month old embryo was developed basically and similar to newborn.It had good blood supply and secrete function.Adipose tissue,which is important indication of changed with age in saliva gland,did not exit in submandibular gland of human being.In addition.it is normal that there were a few lymphatic cells and plasmocytes with secrete SIgA in the gland and is relating with protective principle of normal environment.

English Abstract↗
PubMed1989

[Effects of rhubarb on electrical and contractive activities of the isolated intestine in rats].

The results indicate that electrical activity of colon is obviously excited by rhubarb (Rheum tanguticum). The characteristics of excitement is cybotaxis discharge. It has been found that the frequency and amplitude of spike potential increase obviously, and the contraction enhances. Spike potential frequency of duodenum excited by rhubarb is increased but that of jejunum is hardly excited. It has also been found that the exciting effect of rhubarb on colon can be blocked by atropine.

Animals↗
PubMedDate not supplied

Pulmonary artery involvement in aortoarteritis: an angiographic study.

Angiographic findings of 47 patients with pulmonary artery involvement (PAI) in aortoarteritis are described together with the diagnostic evaluation of PAI and its clinical implications. Pulmonary arteriography was obtained by intravenous digital subtraction angiography in 133 patients with aortoarteritis; 45 (33.8%) were found to have PAI. Two patients with PAI, studied by conventional arteriography, are also included. Stenosis and/or occlusion of segmental and/or lobar pulmonary arteries, and subsegmental branches, were the basic angiographic findings in PAI. Pulmonary artery branches in the upper lobes were more commonly affected than those in the lower and middle (lingula) lobes. Bilateral lesions were more common than unilateral ones. Single lobar and segmental lesions were quite rare. Dilatation was uncommon. No main pulmonary artery involvement was detected. Pulmonary artery hypertension, a late complication of patients with PAI, was revealed in 9 of the 46 patients of the present series. If it occurs, PAI becomes a factor effecting the patient's clinical course and prognosis.

Adolescent↗
PubMedDate not supplied

The electrophysiological effects of alcoholized rhubarb solution in feline heart in vivo.

The effects of Chinese medicine, alcoholized rhubarb, on cardiac electrophysiology and contractile force were studied by using monophasic action potential (MAP) techniques with an improved pressure-electrical transducer epicardial electrode and/or an endocardial pressure-contact electrode catheter in 27 feline hearts in vivo. The results of the experiments were as follows: 1) Alcoholized rhubarb solution (1.5 g/kg) caused a greater increase in the MAP amplitude (from 18.8 +/- 0.62 mV to 26.7 +/- 3.87 mV, p < 0.01), in the MAP maximum rate of rise of phase 0 (from 1.7 +/- 0.13 V/sec to 2.6 +/- 0.43, p < 0.01), and in the MAP duration at 50% and 90% repolarization (from 194.3 +/- 14.00 msec to 216.3 +/- 6.30 msec and from 238.8 +/- 21.41 msec to 280.5 +/- 14.68 msec, respectively, p < 0.01), and a decrease in the heart rate (from 130.8 +/- 12.10 bpm to 110.8 +/- 10.35 bpm, p < 0.01) in the epicardial monophasic action potentials after rhubarb solution administration for 1 min. 2) The ventricular contractile force of the feline heart in vivo was also significantly increased (11.1 +/- 0.52 g to 14.0 +/- 1.41 g, p < 0.01) by rhubarb solution. 3) A dose-dependent relation of alcoholized rhubarb solution was found and indicated that lower doses (1.0-1.5 g/kg) had an excitatory effect, while a higher dose (2.0 g/kg) had inhibitory or toxic effects on the intact feline heart. The present study provides evidence that Chinese rhubarb solution has electrophysiological effects on the feline heart in vivo.

Action Potentials↗