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Biomedical subjects

H Thiel

Publications and source records attributed to H Thiel.

At least 37 records · Page 2Linked to original sources

[Protease inhibitors, serum endotoxin and serum immunoglobulins following portacaval end-to-side anastomosis in animal experiments].

In order to clarify the pathophysiological mechanism of certain biochemical and immunological changes (endotoxin in serum, protease inhibitors, immunoglobulins) found in a former study on human cirrhosis of the liver the porto-caval end-to-side anastomosis of rats with unaffected livers was chosen as test model. With the aid of this bypass the "spill-over" phenomenon of the liver can be completely imitated. In this study, 7 operated and 5 or 14 control animals resp. are referred to. Serum endotoxin, acid-stable and acid-unstable protease inhibitors and immunoglobulins IgG, IgA and IgM were determined 20 months after operation. For the determination of potential hemodynamically or toxically induced effects on these organs, morphologic liver and lung examinations were performed. On the average, the operated rats showed a weight loss of 8 percent, i.e. from 378.4 +/- 9.2 g to 348.4 +/- 17 g. Compared to control rats, their relative liver weights were significantly lower (34%) (mean = 2.23 +/- 0.2 compared to 3.4 +/- 0.44 g, p less than 0.0005). Serum immunoglobulins IgG, IgA and IgM in operated animals were significantly higher (p less than 0.005 or p less than 0.025 resp. and 0.0025). Endotoxin in serum could be identified in 4 out of 7 operated animals (57, 1%), but in none of the control animals. While there was no difference in serum levels of acid-unstable protease inhibitors between the two groups levels of acid-stable protease inhibitors were in operated animals by 24% higher than in control animals (mean = 35.3 +/- 3.3 compared to 28.5 +/- 2.3 mU/ml, p less than 0.0005).(ABSTRACT TRUNCATED AT 250 WORDS)

Animals↗

Defective desaturation and elongation of n-6 and n-3 fatty acids in hypertensive patients.

Hypertensive patients had higher levels of linoleic acid (LA) in serum lipids than normal controls. Administration of large doses of LA failed to raise the percentage of its metabolite arachidonic acid (AA) in serum lipids. Similarly, intake of large amounts of alpha-linolenic acid (alpha-LNA) failed to increase the amount of eicosapentaenoic acid (EPA). The percentage of EPA in serum lipids could readily be increased by direct administration of comparably low doses in a mackerel diet. Hypertensive subjects seem to desaturate and elongate LA and alpha-LNA only very slowly.

Animals↗

[Hematologic and dermatologic side-effects of antibiotic therapy].

The report details possible haematological and dermatological side effects due to co-trimoxazole: agranulocytosis and epidermiolysis bullosa (Lyell) respectively developed after short-term therapy with co-trimoxazole in two women treated for tonsillitis and acute relapse of chronic obstructive bronchitis respectively. The clinical findings, therapeutical management and clinical outcome of both patients are described. Reviewing the literature the relevance of co-trimoxazole induced side effects is discussed.

Aged↗

Allergen-specific histamine release from whole blood in flour-sensitive bakers.

We have studied the allergen-specific in vitro histamine release (HR) in 38 flour-sensitive bakers and in 10 controls without occupational exposure after whole blood incubation with native wheat and rye flour and compared the results with the findings in RAST, skin and bronchial provocation tests. The mean in vitro HR from whole blood after incubation with rye flour amounted to 38.1% (range 0-100%) in flour-sensitive bakers and to 8.2% in the controls (p less than 0.005). Concerning the quantity of HR, no significant differences were found when bakers with meal rhinitis or those with flour-induced asthma were compared. Qualitative analysis, however, showed a close correlation between the frequency of positive HR and the severity of the allergic disorder (rhinitis versus asthma). Comparison of in vitro HR with the findings in RAST and skin tests gave a strong correlation of concordant results with the severity of the underlying disease. The highest coincidence of tests was found in patients with flour-induced asthma. The sensitivity of HR was very high when compared with RAST, skin and provocation tests. Although the assay of HR from whole blood may be a very specific indicator of cell sensitivity in the field of allergy research, the present findings indicate that the conventional methods for diagnosing flour allergy in bakers such as inhalative provocation tests cannot be replaced by this in vitro technique.

Adult↗

[Liver changes in acute rheumatic fever].

Following the course of disease in a 19 year old patient with acute rheumatic fever we report the reaction of the liver parenchyma: on histological examination besides a marked steatosis several "unspecific" granulomas were seen. Nutritional and toxic factors were excluded aetiologically. Difficulties in diagnosis and differential diagnosis of acute mono/poly-arthritis as a leading symptom are discussed.

Acute Disease↗

[Effectiveness of proxyphylline in chronic obstructive pulmonary disease (author's transl)].

The bronchospasmolytic action of proxyphylline given intravenously in a dosage of 16 mg/kg body weight was assessed by spirometry and bodyplethysmography in 12 patients with chronic obstructive pulmonary disease. Proxyphylline serum levels were estimated in parallel repeatedly. In the majority of patients a bronchospasmolytic effect could be established (lowering of airway resistance by 30% in 9 and by 40% in 7 patients). In some an action was demonstrated for up to 4 hours. There were no serious side effects and in particular no adverse cardiovascular reactions or skeletal muscular tremor.

Adult↗