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Biomedical subjects

J Sartre

Publications and source records attributed to J Sartre.

4 recordsLinked to original sources
PubMed1995

[Tuberculous dacryocystitis].

BACKGROUND: Acute infection and inflammation of the nasolacrimal sac may complicate congenital obstruction of the nasolacrimal duct. Acute dacryocystitis is uncommon later and tuberculosis is exceptionally responsible for it. CASE REPORT: A 4 1/2 year-old boy was admitted because he suffered from acute left dacryocystitis with fever and cervical adenitis. Involvement of both lacrymal gland and lymph node persisted despite antibiotic and corticosteroid therapy. Needle biopsy of the lymph node showed presence of Mycobacterium tuberculosis and excision revealed caseating granulomas. The tuberculin skin test was positive while pulmonary tuberculosis was discovered in the patient's father. The patient was successfully given izoniazid, rifampin for 9 months and pyrazinamide for 2. Drainage of the sac area was necessary after 1 month of treatment followed by dacryocystorhinostomy. CONCLUSION: This rare case of tuberculous dacryocystitis permits to delineate the difficulties of ophthalmologic therapy.

Acute Disease↗
PubMed1990

Fully automated high-performance liquid chromatographic assay for the analysis of free catecholamines in urine.

A totally automated and reliable high-performance liquid chromatographic method is described for the routine determination of free catecholamines (norepinephrine, epinephrine and dopamine) in urine. The catecholamines were isolated from urine samples using small alumina columns. A standard automated method for pH adjustment of urine before the extraction step has been developed. The extraction was performed on an ASPEC (Automatic Sample Preparation with Extraction Columns, Gilson). The eluate was collected in a separate tube and then automatically injected into the chromatographic column. The catecholamines were separated by reversed-phase ion-pair liquid chromatography and quantified by fluorescence detection. No manual intervention was required during the extraction and separation procedure. One sample may be run every 15 min, ca. 96 samples in 24 h. Analytical recoveries for all three catecholamines are 63-87%, and the detection limits are 0.01, 0.01, and 0.03 microM for norepinephrine, epinephrine and dopamine, respectively, which is highly satisfactory for urine. Day-to-day coefficients of variation were less than 10%.

Autoanalysis↗
PubMed1979

Structure of a new saponin: chrysantellin A from Chrysanthellum procumbens Rich.

A new saponin has been isolated from a tropical plant Chrysantellum procumbens Rich. which is thought to be useful in the therapy of digestive troubles. The structure of this saponin was determined by chemical methods, nuclear magnetic resonance and mass spectrometry. The aglycone moiety is a triterpene, echinocystic acid; D-glucose, D-xylose and L-rhamnose are carbohydrate components. The structure of saponin was established as 3-O-beta-D-glucopyranosyl [L-rhamnopyranosyl-(alpha 1 leads to 3)-D-xylopyranosyl-)beta 1 leads to 4)-L-rhamnopyranosyl-(alpha 1 leads to 2)-D-xylopyranosyl]-(alpha 1 leads to 28)-echinocystyl. The name, chrysantellin A, is proposed for this new saponin.

Carbohydrates↗