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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 65 (1987), S. 169-173 
    ISSN: 1432-1440
    Keywords: Gastrin ; Insulin ; Omeprazole ; Somatostatin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The influence of a 4-week treatment with the substituted benzimidazole omeprazole (20 mg daily) or placebo on gastric endocrine function was tested in healthy male volunteers. Compared with placebo-treated subjects basal serum gastrin levels were slightly but significantly increased after treatment with omeprazole from 10 to 22 pg/ml (medians;P〈0.05) but returned to pretreatment values after 2 weeks recovery (9 pg/ml). Antral gastrin tissue concentration increased and was still elevated after recovery; however, antral gastrin concentrations also increased in placebo controls, and increments immediately after cessation of omeprazole treatment (2.58 µg/g; median) were not significantly over control values (1.92 µg/g;P〉0.1). Postprandial gastrin release, basal and food-stimulated insulin release, antral somatostatin concentration, and volume densities of antral G and D cells were unaffected. It is concluded that, due to incomplete inhibition of gastric acid secretion at the omeprazole dose studied, only slight effects on the endocrine stomach are to be expected after 4 weeks of administration of omeprazole.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Regulatory Peptides 14 (1986), S. 33-39 
    ISSN: 0167-0115
    Keywords: gastrin ; parietal cells ; rat ; somatostatin ; starvation ; stomach
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 0167-0115
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1750
    Keywords: Cromolyne ; DSCG ; Allergen Inhalation Tests ; Occupational Asthma (Bakers)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract The effect of Cromolyne (DSCG) on 15 bakers with occupational asthma was studied using a bronchial allergen test; the asthma was caused by sensitization to wheat or rye flour. Nine patients suffered from a pure extrinsic bronchial asthma (Group I), while 6 patients showed additional manifestations of bronchial obstructions, including bronchitis and/or emphysema (Group II). Following control tests with isoprenaline, phenol saline (diluent), and acetylcholine, an allergen inhalation test was performed with wheat or rye flour (Test A). A similar test was then carried out after inhalation of 20 mg DSCG (Test B). Finally, the initial allergen inhalation test without DSCG was repeated (Test C). Between each test there was an interval of 48 hrs. The inhibitory effect of DSCG was significant in all 15 patients. The decrease in FEV1,0 after allergen inhalation without DSCG was 38.1%±16.0% (Test A). The administration of DSCG reduced the decrease in FEV1,0 to 11.7%±12.5% (Test B) (p〈0.0005). However, the effect of DSCG was markedly different in both groups. The inhibition of the bronchial obstruction was significant (p〈0.0005) in Group I (uncomplicated allergic bronchial asthma). In Group II (allergic bronchial asthma with complications) no significant effect could be demonstrated (p〉0.05). We conclude that the effect of DSCG depends on the degree of complication in allergic bronchial asthma. The practical implications are discussed.
    Notes: Zusammenfassung Bei 15 Bäckern mit Asthma bronchiale durch eine monovalente Sensibilisierung gegenüber Weizen- oder Roggenmehl wurden inhalative Antigen-Provokationsproben durchgeführt. Bei 9 Patienten (Gruppe I) bestand ein rein exogen-allergisches Asthma bronchiale. Bei 6 Patienten (Gruppe II) fanden sich Hinweise für ein nicht-rein-exogenallergisches Asthma bronchiale (rezidivierende Bronchialinfekte, Lungenemphysem). Inhalative Antigen-Provokationsproben mit Weizen- oder Roggenmehl wurden mit und ohne Vorinhalation von 20 mg Cromolyn (1 Kps. Intal®/Lomudal®) durchgeführt. Die Antigeninhalation unter Intalschutz führte zu einem signifikant geringeren Abfall der Ein-Sekundenkapazität (FEV1,0) (p〈0.0005) als die Provokation ohne Vorinhalation von Cromolyn. Die Ergebnisse beider Untergruppen differieren: In Gruppe I kam es unter Intalschutz zu einem signifikant kleineren (p〈0.0005) Abfall der Ein-Sekundenkapazität als im Kontrollversuch ohne vorherige Gabe von Cromolyn; in Gruppe II ließ sich ein signifikanter Intaleffekt nicht nachweisen (p〉0.05).
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1433-8580
    Keywords: Streptozotocin ; Pancreatic islets ; B cells ; Low carbohydrate diet
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effects of different diets on the endocrine pancreas of streptozotocin-diabetic rats were investigated by morphometry. Three dietary regimens were used over a period of 43 weeks: standard diet (SD), low carbohydrate-high protein diet (LC-HP), and low carbohydrate-high fat diet (LC-HF). Nondiabetic controls received standard diet. Volume density of the total endocrine tissue was significantly reduced in streptozotocin-diabetic rats kept on standard diet as compared to control rats. This reduction of endocrine tissue was significantly less in rats kept on LC-HP diet, whereas diabetic rats kept on LC-HF did not differ from diabetic rats on standard diet. In streptozotocin-diabetic rats volume density of B cells was drastically reduced, whereas volume densities of A, D and PP cells did not differ from nondiabetic controls. This decrease of B cells was partially prevented by LC-HP diet, but not by LC-HF diet. In nondiabetic control rats as in diabetic rats on standard diet most of the islets of Langerhans sized 500–6000 µm2. In contrast, diabetic rats on LC-HP diet revealed more endocrine tissue sized from 50 to 560 µm2 consisting of two to four endocrine cells, single cells, and small islets. The results suggest that LC-HP diet may initiate reparation processes in the endocrine pancreas of streptozotocin-diabetic rats.
    Type of Medium: Electronic Resource
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