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Salik D, El Kaderi Y, Hans C, Lefort A, Libert F, Smits G. Comparative study of keratinocyte primary culture methods from pediatric skin biopsies for
RNA
‐sequencing. Exp Dermatol 2022; 31:1741-1747. [DOI: 10.1111/exd.14652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 07/02/2022] [Accepted: 07/21/2022] [Indexed: 11/28/2022]
Affiliation(s)
- D. Salik
- Department of Dermatology, CHU Saint‐Pierre, CHU Brugmann and Hôpital Universitaire des Enfants Reine Fabiola Université Libre de Bruxelles Brussels Belgium
| | - Y. El Kaderi
- Department of Dermatology, CHU Saint‐Pierre, CHU Brugmann and Hôpital Universitaire des Enfants Reine Fabiola Université Libre de Bruxelles Brussels Belgium
| | - C. Hans
- Cytogenetics Laboratory, Hôpital Erasme, ULB Center of Human Genetics Université Libre de Bruxelles (ULB) Brussels Belgium
| | - A. Lefort
- I.R.I.B.H.M, Campus Erasme Université Libre de Bruxelles 808 Route de Lennik, B‐1070 Brussels Belgium
- Brussels Interuniversity Genomics High Throughput core (BRIGHTcore), Campus Erasme Université Libre de Bruxelles 808 Route de Lennik, B‐1070 Brussels Belgium
| | - F. Libert
- I.R.I.B.H.M, Campus Erasme Université Libre de Bruxelles 808 Route de Lennik, B‐1070 Brussels Belgium
- Brussels Interuniversity Genomics High Throughput core (BRIGHTcore), Campus Erasme Université Libre de Bruxelles 808 Route de Lennik, B‐1070 Brussels Belgium
| | - G. Smits
- Department of Genetics, Hôpital Erasme, ULB Center of Human Genetics Université Libre de Bruxelles (ULB) Brussels Belgium
- Department of Genetics, Hôpital Universitaire des Enfants Reine Fabiola, ULB Center of Human Genetics Université Libre de Bruxelles (ULB) Brussels Belgium
- Interuniversity Institute of Bioinformatics in Brussels Université Libre de Bruxelles Brussels Belgium
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Malhotra S, Sharma S, Bhatia NJK, Hans C. Needle-stick injury among health care workers and its response in a tertiary care hospital. Indian J Med Microbiol 2016; 34:258-9. [PMID: 27080795 DOI: 10.4103/0255-0857.180368] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- S Malhotra
- Department of Microbiology, Dr. Ram Manohar Lohia Hospital and PGIMER, New Delhi, India
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Rodriguez C, Nadéri S, Hans C, Badoual C. Parathyroid carcinoma: a difficult histological diagnosis. Eur Ann Otorhinolaryngol Head Neck Dis 2012; 129:157-9. [PMID: 22480967 DOI: 10.1016/j.anorl.2012.01.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Revised: 01/04/2012] [Accepted: 01/09/2012] [Indexed: 01/24/2023]
Abstract
INTRODUCTION Parathyroid carcinomas are rare and usually difficult to diagnose, both clinically and histologically. CASE REPORT A 60-year-old man was hospitalised for hypotension. Investigations revealed renal failure associated with hypercalcaemia and elevated serum parathormone. (99m)Tc-sestamibi scintigraphy of the parathyroid glands (PT) revealed a mass in the right PT that was treated by parathyroidectomy and recurrent laryngeal lymph node dissection. Histological examination demonstrated a tumour with numerous cytonuclear atypias and immuno-histochemistry demonstrated PTH expression by tumour cells without loss of parafibromin expression. The diagnosis of PTC was based on criteria of invasion and local aggressiveness, despite the absence of lymph node metastasis. The patient developed four recurrences, treated surgically and by adjuvant radiotherapy. DISCUSSION The diagnosis of PTC is usually difficult to establish on a simple histological examination in the absence of specific cytological, architectural or immuno-histochemical markers. This diagnosis must therefore be based on a combination of clinical, radiological and histological signs in a context of atypical presentation of parathyroid tumour.
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Affiliation(s)
- C Rodriguez
- Service d'anatomie et cytologie pathologiques, hôpital européen Georges-Pompidou, AP-HP, faculté Paris-Descartes, 20, rue Leblanc, 75908 Paris cedex 15, France
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Abstract
Sparganosis, also known as larval diphyllobothriasis, is a rare disease of humans as man is not a natural host in the life cycle of Spirometra spp. Diagnosis of the latter is difficult as it mimics other conditions that commonly cause subcutaneous or visceral fluid collection. Clinical diagnosis of this particular case was also erroneously labelled as tuberculosis but later labelled as a case of sparganosis. To the best of our knowledge, this is the first case from India where a sparganum-like parasite was isolated in drain fluid from the perinephric area.
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Affiliation(s)
- S Duggal
- Department of Microbiology, Dr B. L. Kapur Memorial Hospital, New Delhi 110 005, India.
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Hosotte M, Beaudouin E, Morisset M, Luyasu S, Renaudin JM, Petit N, Hans C, Mouton C, Kanny G. Angiœdèmes iatrogènes sous inhibiteurs de l’enzyme de conversion et sous sartans : à propos de 82 cas. Rev Med Interne 2010. [DOI: 10.1016/j.revmed.2010.10.247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
HIV-induced immunosuppression paves the way for several infections, tuberculosis being very common in our country. Female genital tuberculosis (FGTB), presenting as menstrual irregularities, is a diagnostic challenge in an adolescent female when these may be considered normal. The present case is of a young female who presented with menstrual irregularities, diagnosed subsequently as a case of genital tuberculosis. Microbiological relapse after anti-tubercular treatment of six months caused suspicion of a co-existing immunodeficiency and investigations revealed HIV co-infection; thus emphasizing the need of HIV testing in all patients of tuberculosis for timely diagnosis and treatment support thereafter.
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Affiliation(s)
- S Duggal
- Department of Microbiology, Dr. Ram Manohar Lohia Hospital, New Delhi - 110 001, India.
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Laleye A, Alao MJ, Adjagba M, Hans C, Delneste D, Gnamey DK, Ayivi B, Darboux RB. Wolf Hirshhorn syndrome in a case of ring chromosome 4: phenotype and molecular cytogenetic findings. Genet Couns 2006; 17:35-40. [PMID: 16719275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Ring chromosome 4 associates concomitant loss of the telomeric 4p and 4q regions and leads to variable clinical manifestations depending on the size of the deleted chromosomal material. We report on a patient with ring chromosome 4, showing the Wolf-Hirshhorn Syndrome (WHS) phenotype and minor symptoms of distal 4q deletion syndrome; the severity of the signs of WHS masks the symptomatology of the 4q deletion syndrome. The absence of seizures despite the absence of the specific 4p16.3 region with haploinsufficiency of the LETM1 gene is striking. The double telomeric deletion due to the ring chromosome formation confirmed by FISH has been rarely described in WHS.
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Affiliation(s)
- A Laleye
- Unité de Biologie Humaine, Faculté des Sciences de la Sante, Cotonou, Bénin.
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Gummert JF, Barten MJ, Hans C, Kluge M, Doll N, Walther T, Hentschel B, Schmitt DV, Mohr FW, Diegeler A. Mediastinitis and cardiac surgery--an updated risk factor analysis in 10,373 consecutive adult patients. Thorac Cardiovasc Surg 2002; 50:87-91. [PMID: 11981708 DOI: 10.1055/s-2002-26691] [Citation(s) in RCA: 174] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
BACKGROUND Deep sternal wound infection (DSWI) remains a serious complication after cardiac surgery. New evolving techniques including the utilization of internal mammary arteries (IMA), beating heart procedures, and minimal invasive surgery (MIC) require an updated risk factor analysis to identify high risk patients in order to improve perioperative treatment. METHODS 10,373 consecutive patients receiving cardiac surgery between May 1996 and August 1999 were evaluated: 9,303 underwent full sternotomy whereas a minimally invasive (MIC) approach using partial sternotomy or lateral thoracotomy was used in 1,070 patients. DSWI was defined as the evidence of mediastinitis seen at reoperation along with one or more of the following: positive culture of mediastinal fluid, positive blood culture or temperature higher than 38 degrees C and/or leukocytosis. RESULTS The overall incidence of DSWI in the "full sternotomy" group was 1.44 % (134 of 9,303). Univariate risk factor analysis showed a significant influence of IMA use, ICU / IC treatment > 5 days, postoperative ventilator time > or = 72 h, need for reexploration, diabetes, surgery time > or = 180 min, assist device implantation (including use of IABP), peripheral vascular disease and increased body mass index. Multivariate analysis identified double IMA, ICU treatment > 5 days, single IMA, diabetes, reexploration and increased body mass as significant risk factors. No mediastinitis was observed in the MIC group. CONCLUSION As DSWI is related to sternotomy, a MIC approach should be considered for patients at high risk for DSWI. IMA takedown as a pedicled graft should be especially avoided in patients with diabetes since the risk for postoperative mediastinitis is unacceptably high in this patient group.
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Affiliation(s)
- J F Gummert
- Klinik für Herzchirurgie GmbH, Universität Leipzig, Herzzentrum Leipzig GmbH and
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Kar HK, Jain RK, Sharma PK, Gautam RK, Gupta AK, Sharma SK, Hans C, Doda V. Increasing HIV prevalence in STD clinic attendees in Delhi, India: 6 year (1995-2000) hospital based study results. Sex Transm Infect 2001; 77:393. [PMID: 11588300 PMCID: PMC1744379 DOI: 10.1136/sti.77.5.393] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Ratan SK, Sen A, Pandey RM, Hans C, Roychaudhary S, Ratan J. Lesser evaluated determinants of fistula formation in children with hypospadias. Int J Clin Pract 2001; 55:96-9. [PMID: 11321868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
Determinants of fistula formation, some of them not previously evaluated, were studied in 30 consecutive children admitted for hypospadias repair to our centre. All children were screened for any urinary or local infections. Vicryl and catgut were used alternately for reconstruction of the neo-urethra. Per urethral drainage was employed in all patients. The presence of unfavourable local anatomical factors, the surgeon's satisfaction at the end of the procedure and duration of surgery were noted. The patients were followed up for any urethrocutaneous fistula. Unsatisfactory surgery (chi-square = 6.53, p = 0.01), unfavourable anatomical factors (chi-square = 10.80, p = 0.001) and local infection (chi-square = 5.66, p = 0.017) had a strong association with fistula formation, whereas urine leakage and a history of previous surgery had only a marginal association. On application of stepwise binary logistic regression, unfavourable local anatomical factors (OR [95% CI]: 13.19 [1.20-143.50]) and urine leakage (OR [95% CI]: 14.35 [1.20-171.45]) emerge as strong risk factors for urethrocutaneous fistula, and local infection (OR [95% CI]: 8.70 (0.93-81.01]) as a moderate risk factor.
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Affiliation(s)
- S K Ratan
- Department of Paediatric Surgery, Dr Ram Manohar Lohia Hospital, New Delhi, India
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Warnon S, Zammatteo N, Alexandre I, Hans C, Remacle J. Colorimetric detection of the tuberculosis complex using cycling probe technology and hybridization in microplates. Biotechniques 2000; 28:1152-6, 1159-60. [PMID: 10868280 DOI: 10.2144/00286st05] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Cycling probe technology (CPT) is a simple signal amplification method for the detection of specific target DNA sequences. CPT uses a chimeric DNA-RNA-DNA probe that is cut by RNase H when bound to its complementary target sequence. In this study, a hybridization assay was developed to detect biotinylated CPT products that result from the amplification of a Mycobacterium tuberculosis complex sequence. The chimeric probe was specifically designed to avoid the formation of secondary structures. The chosen capture probe was perfectly complementary to and was the same size as OL2, one of the two CPT products. The assay was based on the observation that a long sequence, such as the initial probe, was destabilized when bound to a small capture probe as a result of steric hindrance. The capture probe preferentially bound OL2 rather than the long initial probe. We added a prehybridization step with a helper DNA to enhance this discrimination between the two sequences. Colorimetric detection was performed using a peroxidase-streptavidin conjugate. After optimization, the non-isotopic hybridization assay allowed the detection of around 10 amol of target DNA. Besides being faster and easier to perform, this detection method was compared to electrophoresis separation and gave similar results.
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Affiliation(s)
- S Warnon
- Facultés Universitaires Notre-Dame de la Paix, Laboratoire de Biochimie cellulaire, Namur, Belgium.
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Kar HK, Narayan R, Jain RK, Guatam RK, Gupta AK, Sharma PK, Hans C, Duggal N, Sovani VB. A clinical trial of minocycline in uncomplicated gonococcal urethritis. Indian J Dermatol Venereol Leprol 1998; 64:226-228. [PMID: 20921774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Affiliation(s)
- H K Kar
- From the Department of Dermatology, STD, Leprosy and Department of Microbiology, Dr. R.M.L Hospital, New Delhi and Cyanamid (India) Ltd, India
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Dómine M, Estévez L, Hans C, Casimiro J, Andrade L, Robies L, Casado V, Vicente J, Lobo F. High dose-density chemotherapy for small cell lung cancer (SCLC). Eur J Cancer 1997. [DOI: 10.1016/s0959-8049(97)85820-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Sharma S, Hans C. Bacterial infections in burns patients: a three years study at RML Hospital, Delhi. J Commun Dis 1996; 28:101-6. [PMID: 8810144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A study was undertaken at RML Hospital, Delhi to examine the bacterial infections of burn cases and determine the antibiograms of the isolates to commonly used antimicrobial agents. A total of 489 pus samples from as many patients received, over a period of three years (January 1992 to December, 1994) yielded 793 isolates. Pseudomonas sp. was the commonest (53.9%) followed by Klebsiella sp. (35.1%) Staphylococcus aureus (30.6%) Proteus sp. (23.5%). Esch. coli (14.1%) and others (4.9%). The most resistant isolate to commonly used antimicrobial was Klebsiella sp. (16.4%), followed by Esch. coli (15.4%) Pseudomonas sp. (15.2%) Proteus sp. (7.8%) and Staphylococcus aureus (4.6%). The infection of burn wounds with multiple organisms, with superadded problem of drug resistance, indicate the institution of a drug policy by the hospitals for burns patients.
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Affiliation(s)
- S Sharma
- Ram Manohar Lohia Hospital, New Delhi
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Schlatter C, Steinegger A, Rickenbacher U, Hans C, Lengyel A. Aluminium levels in the blood plasma of persons working in the aluminium industry. Environ Geochem Health 1990; 12:59-64. [PMID: 24202566 DOI: 10.1007/bf01734049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Due to the exposure to alumina in the air, workers in the primary aluminium industry are expected to exhibit a higher aluminium exposure than the general population. The additional daily intake will be less than 20 mg. The determination of aluminium in blood plasma of electrolysis-workers by flameless atomic absorption spectrometry revealed levels before shift in the range of 20-30 μg/L compared to levels of less than 3 μg/L in a non-occupationally exposed group. These levels refer to work in old plants with unhooded pots. The plasma levels can rise up to 60 μg/L during the shift. A similar rapid change of the levels during work is seen in the urine values. Due to the delay in excretion the maximal values in the range of 5 μg/h are found four hours after cessation of work. It seems therefore that only preshift samples give a reliable measure of the body burden. Compared to the much higher levels in dialysis patients the observed values in aluminium workers are not considered to be of relevance to health.
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Affiliation(s)
- C Schlatter
- Institute of Toxicology, Swiss Federal Institute of Technology and University of Zurich, Schorenstrasse 16, CH-8603, Schwerzenbach, Switzerland
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Schlatter C, Steinegger A, Rickenbacher U, Hans C, Lengeyl A. [Blood aluminum levels in workers in the aluminum industry]. Soz Praventivmed 1986; 31:125-9. [PMID: 3716619 DOI: 10.1007/bf02091603] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Aluminium levels in the blood plasma were determined in a group of workers in an aluminium plant. The aluminium concentration in the plasma of potroom workers was 5 to 15 micrograms/l whereas workers in the cast-house showed values of approximately 5 micrograms/l. In a healthy non-occupationally exposed control population, normal values of less than 1 to 3 micrograms/l were obtained. Considerably higher values, in the range of 100 to 500 micrograms/l, were found in kidney patients, since they must ingest several grams of aluminium-hydroxides daily to bind phosphates in the intestinal system. The aluminium is, however, only partially removed by dialysis. Occasionally central nervous disturbances, possibly due to aluminium, occur in these patients. However, there is no evidence of any health effects due to the intake of aluminium compounds in workers in the aluminium industry.
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Abstract
A specific, sensitive, and reliable radioimmunoassay for serum-conjugated deoxycholic acid has been developed with antiserum obtained after immunization of rabbits with deoxycholic acid--bovine serum albumin conjugate. The displacement curve of glyco [3H] deoxycholic acid was linear on a logit-log plot from 7.5 to 320 pmol of unlabeled glycodeoxycholic acid. At 50% displacement of bound label, the cross-reactivity of taurodeoxycholic acid was 100%, deoxycholic acid 30%, taurocholic acid 3%, and glycocholic acid 2%. No cross-reactivity was observed with free cholic acid, conjugated or free chenodeoxycholic acids and conjugated or free lithocholic acids. Fasting serum-conjugated deoxycholic acid concentrations in 10 healthy volunteers ranged from 0.18 to 0.92 mumol/1. Over a period of 5 hours following 0.5 g oral cholate administration the serum-conjugated deoxycholic acid concentration did not change in 5 fasting healthy persons, whereas an initial increase of serum cholic acid was observed.
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Rupprecht E, Hans C, Leonard G, Decker K. Impaired ganglioside synthesis in rat liver after D-galactosamine administration in vivo. Biochim Biophys Acta 1976; 450:45-56. [PMID: 974155 DOI: 10.1016/0005-2760(76)90297-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
D-Galactosamine reduces the hepatic content of uridine phosphates, UDP-galactose, and UDPglucose due to an accumulation of UDP-amino sugars; this deficiency can result in severe hepatocellular damage. Alterations of glycosphingolipid synthesis in the early phase of this pathogenic process were studied by measurements of the incorporation of labeled galactose into glycosphingolipids of rat liver. [1-14C]Galactose was injected 2 h after galactosamine administration and the specific radioactivities of the glycosphingolipid precursors, UCPgalactose and UDPglucose, were determined. The specific radioactivity of UDPgalactose, when integrated over the whole period of radioactive synthesis, was four times higher in the galactosamine-treated animals than in the controls; the corresponding ratio of UDPglucose was 0.85. The pattern of the glycosphingolipids isolated from the livers of normal and galactosamine-treated rats resembled that described by Siddiqui and Hakomori (1970, Cancer Res. 30, 2930-2936); GL1, GM3,GM1, GD1, and a small amount of GT could be characterized. The specific radioactivities of glucose and galactose obtained from individual glycosphingolipids were determined in normal and galactosamine-treated livers. The synthesis of the glycosphingolipids was calculated using the respective data of the UDPhexoses. The labeling of glucosylceramide (GL1) was not altered and only a small change of GM3 could be detected; the synthesis of gangliosides GM1 and GD1, however, was inhibited by 95% or more between 4 and 6 h after galactosamine administration.
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Forster J, Schuchmann L, Hans C, Niederhoff H, Künzer W, Keppler D. Increased serum urate in galactosemia patients after a galactose load: a possible role of nucleotide deficiency in galactosemic liver injury. Klin Wochenschr 1975; 53:1169-70. [PMID: 1214453 DOI: 10.1007/bf01476458] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Five galactosemic and 5 normal children received an oral load of galactose under standardized conditions. The maximal blood galactose level after 1.5 hours was 12.6 +/- 2.0 (S.D.) mmol/l in individuals with a deficiency of uridylyl transferase (EC2.7.7.12) as compared to 5.8 +/- 1.2 (S.D.) mmol/l in the controls. The concentration of serum urate in galactosemics increased to 155% of the fasting level (P less than 0.005); no rise was detectable in the controls. The elimination of urate with the urine was augmented by the same amount in both groups. Our studies provide evidence for an increased catabolism of hepatic nucleotides. This may lead to a deficiency of nucleotides which is proposed as a cause of galactosemic liver injury.
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