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Biomedical subjects

A Walther

Publications and source records attributed to A Walther.

At least 55 records · Page 3Linked to original sources
PubMed1983

[Clinical and pathogenic aspects of secondary hyperlipoproteinemia].

The secondary hyperlipoproteinemias are frequent in "civilized" countries. Through new methods, the interest for secondary hyperlipoproteinemias is increasing, on theoretical and practical points of view. This paper reviews the hyperlipoproteinemias of alcoholism, renal and hepatic diseases, diabetes mellitus, abnormal thyroid function, and those secondary to various medications. For each of them, the clinical, pathophysiologic and therapeutic aspects are described.

Adrenal Cortex Hormones↗
PubMed1983

Early diagnosis of intestinal non-Hodgkin lymphoma by endoscopy.

The early diagnosis of intestinal non-Hodgkin lymphoma, stages I and II, lymphoblastic of Burkitt's type, was made by colonoscopy combined with selective radiologic visualization of the tumor in two children, ages 4 and 5. This technique is recommended in patients with abdominal pain, iron-deficiency anemia, intestinal blood loss, and an elevated sedimentation rate, when conventional radiologic and ultrasound techniques fail.

Abdomen↗
PubMed1983

[Clinical and pathogenic aspects of secondary hyperlipoproteinemias].

The secondary hyperlipoproteinemias are frequent in "civilized" countries. Through new methods, the interest for secondary hyperlipoproteinemias is increasing, on theoretical and practical points of view. This paper reviews the hyperlipoproteinemias of alcoholism, renal and hepatic diseases, diabetes mellitus, abnormal thyroid function, and those secondary to various medications. For each of them, the clinical, pathophysiologic and therapeutic aspects are described.

Alcoholism↗
PubMed1982

[Ewing's sarcoma: therapeutic experience (author's transl)].

Since 1978, four patients with Ewing's sarcoma have been on a treatment-regimen based on the T-6 and T-2 Protocols according to Rosen. Preoperative chemotherapy produced tumor regression and thus enabled surgical resection in three cases. In the first case, radiation therapy was felt necessary because the surgical resection was performed after the first course of the T-6 Protocol and cells suspected to be malignant were found on histological examination of the resected tumor. The experience prompted us to refrain from using radiation therapy in the next two cases but to conduct the surgical resection after two cycles of T-6 Protocol. Here, histological examinations of the resected tumors showed no evidence of malignant cells. The fourth patient had a pathologic fracture in addition to the tumor. In this case, it was possible, by means of chemotherapy to heal the fracture and also to produce a regression of the tumor. Because of the radiation morbidity, we believe that it is a notable progress in the treatment of Ewing's sarcoma if radiation therapy can be avoided.

Adolescent↗
PubMed1980

[The functional examination of the visual system by means of delayed triggered VECP (author's transl)].

The VECP represents a brain reaction evoked by fairly abrupt visually perceived changes of one or several environmental features. If the stimulus consists of a finite temporal luminance rise, then the VECP is triggered later as compared to an abruptly appearing stimulus. This delay is an expression of the dynamic input properties of a VECP trigger mechanism. This system evaluates sudden changes of luminance slope and the temporal luminance integral in the first 50 ms after commencement of the stimulus. It may be assumed that deficiencies of the processing of visual information are manifested especially and first of all in a change of the dynamic trigger conditions of VECP. This is shown for colour stimulation (under isolation of the green and red colour mechanism) in different deficiencies of the visual system.

Cerebral Cortex↗
PubMed1977

[Use of xylitol as sugar substitute in diabetic children].

In 24 diabetic children treated with insulin xylitol was used as a sugar substitute for four weeks in an amount of 30 gms/day. In one case only the xylitol application was terminated before the end of the dietetic period because of diarrhoea. The other children tolerated xylitol fairly well, three of the children found the polyol too sweet. Because of incomplete data, the values of only 18 children were compiled. A significant increase of serum uric acid concentration measuring 1 mg/100 ml was the main side effect of xylitol usage. This effect was favoured by the fact that diabetic children do not use sucrose. As was shown earlier, a sucrose free period is the precondition for the possibility to find a xylitol induced hyperuricemia. In metabolically healthy children the existence of a sucrose induced hyperuricemia is also to be expected, this xylitol effect is, therefore, obviously without pathophysiological significance. Xylitol is suited for use as a sugar substitute in diabetic diet and in caries prophylaxis if the limited dose is observed.

Adolescent↗
PubMed1975

The diagnosis of the early infantile form of hypophosphatasia tarda.

The diagnostic characteristics of the early infantile form of hypophosphatasia tarda are demonstrated in a case of a first child of healthy, probably consanguineous, unmarried parents. The diagnosis of the disease is based on the clinical and radiographic findings. The absence of alkaline phosphatase activity in the blood serum and leukocytes, and the excretion of phosphorylethanolamine in urine confirm the diagnosis. The inheritance appears to be autosomal recessive.

Alkaline Phosphatase↗