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Biomedical subjects

K Sommer

Publications and source records attributed to K Sommer.

At least 73 records · Page 4Linked to original sources
PubMed1983

[Treatment of Amanita phalloides poisoning with silybin in combination with penicillin and cortisone].

A report is presented of Amanita phalloides poisoning in a family of 3 members admitted with acute gastrointestinal symptoms after eating a meal of various self-picked mushrooms. A latent period of 11 hours preceded the onset of symptoms, a typical feature of this form of poisoning. There was an enormous increase in liver-specific enzymes in two of the cases. The clinical picture was markedly mitigated by the early initiation of silybin therapy, in combination with penicillin and cortisone. The patients made a rapid symptomatic recovery and the liver parameters were sufficiently improved by the 12th day so that the patients could be discharged.

Adult↗
PubMed1981

[A severe case of acute malaria tropica--haemolysis and disseminated intravascular coagulopathy (author's transl)].

The case is reported of a 24-year old male patient, who was infected with Plasmodium falciparum during prolonged touch-down at Maputo and Dar-es-Salaam on returning from Lesotho (South Africa), a non-endemic areas. Severe haemolysis, anaemia, myocardiopathy, renal insufficiency, disseminated intravascular coagulopathy and mild encephalopathy occurred. The patient's condition was very serious, but he responded rapidly to chloroquine, heparin, fibrinogen and other intensive medication and was soon discharged, fully cured.

Acute Disease↗
PubMed1978

[Significance of an oral cytogram for the characterization of synthetic sex steroids].

In this study we have found, that the gingiva epithelium is a sensitive hormonal receptor which may present different histologic and cytologic changes in relation to the hormonal influences acting upon this organ. The oral smears can be used as a reliable test for the evaluation of estrogenic effects in monohormonal conditions.

Contraceptives, Oral, Hormonal↗
PubMed1975

Clinical applications of gas chromatograph/mass spectrometer/computer systems.

Gas chromatograph/mass spectrometer/computer systems can be used to quantify a wide variety of compounds of clinical interest. A quadrupole instrument operated in the chemical ionization (Cl) mode was used in these studies. Because of the sensitivity and specificity of selective ion detection, it is possible to make measurements routinely in the nanogram to picogram range, with 0.1-1.0 ml samples of plasma and 1-5 ml samples or urine. Internal standards, preferably stable-isotope-labeled compounds, were added to the biological samples before isolation was begun. We describe clinical applications of these procedures to problems in toxicology, pharmacokinetics, and perinatal pharmacology.

Autoanalysis↗
PubMed1975

[The problem of modifying X-chromatin frequency using hormonal contraceptives].

The ability of the sexual steroids to induce extragenital organ-effects is set in connection to the preovulatory decrease of x-chromatin frequency during the regular menstrual cycle as found by Schmidt and coll. [11]. Under modified techniques of investigation and exact criteria of selection, reproducibility of the results and the behaviour of the x-chromatin-frequency in the artificially controlled anovulatory cycle are checked. The absence of preovulatory decrease shows that a hormonal influence may be assumed.

Adult↗
PubMedDate not supplied

Correlation of matrix metalloproteinase-2, -9, tissue inhibitor-1 of matrix metalloproteinase and CD44 variant 6 in head and neck cancer metastasis.

This study aimed to explore the molecular mechanism in tumor invasion and metastasis. The expression of matrix metalloproteinase-2, -9 (MMP-2, MMP-9), tissue inhibitor-1 of matrix metalloproteinase (TIMP-1), cell adhesion molecule 44 variant 6 (CD44v6), HER2/neu and p53 was investigated in 154 patients with head and neck squamous cell carcinoma (SCC) by ABC and ImmunoMax immunohistochemical method. Their clinical relevance and correlation were analysed. The expression of MMP-2, MMP-9, TIMP-1, CD44v6, HER2/neu and p53 was found in cancer cells in 87.01%, 85.71%, 68.18%, 98.05%, 55.19% and 50.65% cases respectively. Linear regression and correlation analysis revealed that there was close positive relationship (P<0.05) between the expression of MMP-2 and MMP-9, TIMP-1 and CD44v6, HER2/neu and MMP-9, MMP-2 and p53. Up-regulation of MMP-2 was accompanied by advanced T stage (P<0.01). There was also a trend of MMP-2 expression being related with tumor metastasis. Increased expression of HER2/neu was found in patients with tumor recurrence(P<0.05). The expression of TIMP-1 was higher in laryngeal cancer than that in pharyngeal cancer, and higher in keratinizing and non-keratinizing SCC than that in basaloid SCC(P<0.05). These findings suggested that MMP-2 and MMP-9, HER2/neu and MMP-9, MMP-2 and p53 had a coordinate function in aggression of tumor; that MMP-2 had a more important function than MMP-9 in tumor invasion and metastasis; and that HER2/neu might serve as a biomarker for poor prognosis in HNSCC.

Adult↗