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Provendier A, Migliorelli F, Loussert L, Boileau BG, Vayssiere C, Hamdi SM, Hanaire H, Dupuis N, Guerby P. The sFLT-1/PlGF Ratio for the Prediction of Preeclampsia-Related Adverse Fetal and Maternal Outcomes in Women with Preexisting Diabetes. Reprod Sci 2024:10.1007/s43032-024-01540-9. [PMID: 38605263 DOI: 10.1007/s43032-024-01540-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 04/02/2024] [Indexed: 04/13/2024]
Abstract
To evaluate the predictive value of the sFlt-1/PlGF ratio for the prediction of preeclampsia in women with preexisting diabetes mellitus. This is a monocentric retrospective observational study conducted between January 2018 and December 2020. All singleton pregnancies with preexisting diabetes mellitus, who had a dosage of the sFlt-1/PlGF ratio between 30 and 34 + 6 weeks of gestation were included. The principal outcome was preeclampsia. The secondary outcomes were preterm preeclampsia, gestational hypertension, placental abruption, intrauterine fetal death, IUGR, small for gestational age and a composite outcome named "hypertensive disorder of pregnancy" including gestational hypertension, preeclampsia and HELLP syndrome (hemolysis, elevated liver enzymes and low platelet count). Of 63 patients, 22% presented preeclampsia. The area under the curve of sFlt-1/PlGF ratio was 0.90 (95% CI: 0.79-0.96) for the prediction of preeclampsia. The receiver operator characteristic analysis suggested that the optimal sFlt-1/PlGF cutoff to predict preeclampsia was 29, with a sensitivity of 86% (95% CI: 60.1-96.0) and a specificity of 92% (95% CI: 80.8-96.8). A cut-off of 38 provided a sensitivity of 71% (95% CI: 45.4-88.3), a specificity of 92% (95% CI: 80.8-96.8). Further analysis using multivariable methods revealed nephropathy was significantly associated with PE (p = 0.014). The use of the sFlt-1/PlGF ratio during the third trimester of pregnancy seems to be of interest as a prognostic tool to improve multidisciplinary management of patients with preexisting diabetes mellitus.
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Affiliation(s)
- Anais Provendier
- Department of Obstetrics and Gynecology, Paule de Viguier maternity, CHU Toulouse, 330 avenue de Grande-Bretagne, 70034 31059, Toulouse, TSA, France
| | - Federico Migliorelli
- Department of Obstetrics and Gynecology, Paule de Viguier maternity, CHU Toulouse, 330 avenue de Grande-Bretagne, 70034 31059, Toulouse, TSA, France
| | - Lola Loussert
- Department of Obstetrics and Gynecology, Paule de Viguier maternity, CHU Toulouse, 330 avenue de Grande-Bretagne, 70034 31059, Toulouse, TSA, France
| | - Béatrice Guyard Boileau
- Department of Obstetrics and Gynecology, Paule de Viguier maternity, CHU Toulouse, 330 avenue de Grande-Bretagne, 70034 31059, Toulouse, TSA, France
| | - Christophe Vayssiere
- Department of Obstetrics and Gynecology, Paule de Viguier maternity, CHU Toulouse, 330 avenue de Grande-Bretagne, 70034 31059, Toulouse, TSA, France
| | - Safouane M Hamdi
- Department of Biochemistry and Hormonology, University Paul Sabatier, Toulouse, France
| | - Hélène Hanaire
- Department of Endocrinology and Diabetology, University Paul Sabatier, Toulouse, France
| | - Ninon Dupuis
- Department of Obstetrics and Gynecology, Paule de Viguier maternity, CHU Toulouse, 330 avenue de Grande-Bretagne, 70034 31059, Toulouse, TSA, France
| | - Paul Guerby
- Department of Obstetrics and Gynecology, Paule de Viguier maternity, CHU Toulouse, 330 avenue de Grande-Bretagne, 70034 31059, Toulouse, TSA, France.
- Toulouse Institute for Infectious and Inflammatory Diseases, Inserm UMR 1291 - CNRS UMR 5051- University Toulouse III, Toulouse, France.
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Brusq C, Mieusset R, Hamdi SM. Development of a multivariable prediction model for congenital unilateral absence of the vas deferens in male partners of infertile couples. Andrology 2021; 10:262-269. [PMID: 34510807 DOI: 10.1111/andr.13106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 09/01/2021] [Accepted: 09/07/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Congenital unilateral absence of vas deferens has been diagnosed in fertile and normozoospermic males and is associated with the risk of unilateral renal absence or cystic fibrosis transmembrane conductance regulator mutations; but no prediction model currently exists to diagnose this condition. OBJECTIVES The study aims to identify clinical and biological variables that may have a predictive value for the diagnosis of congenital unilateral absence of vas deferens in male partners of infertile couples MATERIALS AND METHODS: We designed a retrospective, cross-sectional, case-control study on electronic health records of a single tertiary-care andrological centre collected between 1998 and 2018. We included all subjects diagnosed with congenital unilateral absence of vas deferens using combined scrotal and transrectal ultrasounds. Controls were confirmed free of congenital unilateral absence of vas deferens by the same way. Both groups received standardised exploration procedures. Multivariable logistic regression model was built in a backward stepwise manner. Model performance and calibration were assessed. The study is reported according to TRIPOD statement. RESULTS We included 69 congenital unilateral absence of vas deferens cases and 78 controls. Cases had a lower semen volume than controls. The congenital unilateral absence of vas deferens risk was associated with history of cryptorchidism and both levels of semen fructose and α-glucosidase. These predictors were confirmed by a random forest algorithm. The area under the curve was 0.886 (95% interval: 0.81-0.92). Calibration was performed with the Hosmer-Lemeshow test (p = 0.88). DISCUSSION AND CONCLUSION History of cryptorchidism, semen fructose and α-glucosidase were identified as relevant and independent predictors for the diagnosis of congenital unilateral absence of vas deferens. The model enables to identify male patients with a high risk of congenital unilateral absence of vas deferens to whom a transrectal ultrasounds would be proposed to confirm the diagnosis, whatever their semen parameters. It will also help to address the risks of unilateral renal absence and of cystic fibrosis transmembrane conductance regulator mutations carrying during the management of infertile couples.
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Affiliation(s)
- Clara Brusq
- DEFE, Univ Toulouse, Université Toulouse III, Paul Sabatier, INSERM, Toulouse, France
| | - Roger Mieusset
- DEFE, Univ Toulouse, Université Toulouse III, Paul Sabatier, INSERM, Toulouse, France.,Andrologie, Médecine de la Reproduction, CHU Toulouse, Toulouse, France
| | - Safouane M Hamdi
- DEFE, Univ Toulouse, Université Toulouse III, Paul Sabatier, INSERM, Toulouse, France.,Laboratoire de Biochimie et d'Hormonologie, CHU Toulouse, Toulouse, France
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Tasta O, Parant O, Hamdi SM, Allouche M, Vayssiere C, Guerby P. Evaluation of the Prognostic Value of the sFlt-1/PlGF Ratio in Early-Onset Preeclampsia. Am J Perinatol 2021; 38:e292-e298. [PMID: 32446261 DOI: 10.1055/s-0040-1709696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Increased expression of soluble fms-like tyrosine kinase 1 (sFlt-1), associated with a decrease in placental growth factor (PlGF), plays a key role in the pathogenesis of preeclampsia (PE). We evaluated the prognostic value of the sFlt-1/PlGF ratio for the onset of adverse maternofetal outcomes (AMFO) in case of early-onset PE with attempted expectant management. STUDY DESIGN From October 2016 through November 2018, all singleton pregnancies complicated by early-onset PE (before 34 weeks of gestation) were included in a cohort study. The plasma levels of sFlt-1 and PlGF were blindly measured on admission. For the statistical analysis, we performed a bivariate analysis, a comparison of the receiving operating characteristic curves and a survival analysis estimated by the Kaplan-Meier method. RESULTS Among 109 early PE, AMFO occurred in 87 pregnancies (79.8%), mainly hemolysis, elevated liver enzymes, and low platelet count syndrome and severe fetal heart rate abnormalities requiring urgent delivery. The area under the curve (AUC) of sFlt-1/PlGF ratio was 0.82 (95% confidence interval [CI]: 0.73-0.88) for the risk of AMFO and the difference between the AUCs was significant for each separate standard parameter (p = 0.018 for initial diastolic blood pressure, p = 0.013 for alanine aminotransferase, p < 0.001 for uric acid). Pregnancies were best classified by a cutoff ratio of 293, with a sensitivity of 95% and a specificity of 50%. With a ratio value less than 293, no pregnancy was complicated or had been stopped during the first 5 days. A ratio more than 293 was associated with an increased risk of AMFO onset (hazard ratio [HR]: 3.61; 95% CI: 2.13-6.10; p < 0.001) and had a significant association with the length of time between the diagnosis of PE and delivery (HR: 2.49; 95% CI: 1.56-3.96; p < 0.001). CONCLUSION The sFlt-1/PlGF ratio is an additional tool in the prediction of AMFO in proven early-onset PE, which is likely to improve care by anticipating severe complications. KEY POINTS · The sFlt-1/PlGF ratio is associated with AMFO.. · It is an additional tool for physician.. · We proposed a 293 cutoff value for the ratio..
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Affiliation(s)
- Oriane Tasta
- Department of Obstetrics and Gynecology, Paule de Viguier Maternity, CHU Toulouse, Toulouse, France
| | - Olivier Parant
- Department of Obstetrics and Gynecology, Paule de Viguier Maternity, CHU Toulouse, Toulouse, France
| | - Safouane M Hamdi
- Department of Biochemistry and Hormonology, Paul Sabatier University, Toulouse, France
| | - Mickael Allouche
- Department of Obstetrics and Gynecology, Paule de Viguier Maternity, CHU Toulouse, Toulouse, France
| | - Christophe Vayssiere
- Department of Obstetrics and Gynecology, Paule de Viguier Maternity, CHU Toulouse, Toulouse, France
| | - Paul Guerby
- Department of Obstetrics and Gynecology, Paule de Viguier Maternity, CHU Toulouse, Toulouse, France.,INSERM UMR 1048 I2MC, Université de Toulouse III, Toulouse, France
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Hamdi SM, Sanchez E, Garimbay D, Albarede S. External quality assessment program for biochemical assays of human seminal plasma: a French 6-years experience. Basic Clin Androl 2020; 30:18. [PMID: 33292159 PMCID: PMC7670731 DOI: 10.1186/s12610-020-00116-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 10/07/2020] [Indexed: 12/03/2022] Open
Abstract
Background In 1999, despite a longstanding use, the WHO manual for the examination of human semen finally proposed to assay several biochemical components of the seminal plasma for a functional exploration of the male accessory glands. At the same time, an international effort was made to standardize laboratory tests and to increase their performance through ISO 15189 accreditation. In this setting, participation to relevant external quality assessment (EQA) schemes is an essential requirement for laboratories. To fulfil this injunction, we have organized an EQA program for seminal biochemistry using presumed commutable samples. In this study, we aimed to report an overview of the French laboratory offer, the kinds of assays used, their performance as well as their likelihood of satisfying ISO15189 requirements for EQA. Results Between 2014 and 2019, we performed seven surveys. A median of six laboratories participated to each survey giving a ratio of one laboratory per 11.2 million inhabitants. Seven biomarkers are routinely assayed but the core set shared by all laboratories comprised citrate and zinc (prostate), fructose (seminal vesicles) and α-1, 4 glucosidase (epididymis). The use of CE-IVD marked methods concerned between 0 to 75% of overall assays. According to analytical specifications, 100% of laboratories results were compliant for zinc, 75% for citrate and α-1,4 glucosidase and 67% for fructose. By combining overall data in an empirical scoring system, we identified several types of seminal biomarkers: citrate, fructose and zinc appear as good candidates for a full accreditation, α-1,4 glucosidase still presents an analytical weakness, but prostatic acid phosphatase, free L-carnitine and glycerophosphocholine cannot be accredited in the current state. Conclusions We organized the first French EQA program for seminal biochemistry to help local laboratories to face their legal requirement to be fully accredited by 2020. It could be improved still further but it gave us an oversight on the analytic landscape. Effective methods are available for a confident biochemical exploration of prostate and seminal vesicles. However, that of epididymis appeared unexpectedly fragile. This andrological issue should be addressed by dedicated recommendations from health authorities and scientific societies.
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Affiliation(s)
- Safouane M Hamdi
- Groupe de Recherche en Fertilité Humaine (Human Fertility Research Group), EA3694, Université Toulouse III - Paul Sabatier, Toulouse, France. .,Laboratoire de Biochimie et d'Hormonologie, Institut Fédératif de Biologie, Hôpital Purpan, CHU Toulouse, 330, avenue de Grande-Bretagne TSA40031, 31059, Toulouse cedex, France.
| | - Erick Sanchez
- CTCB, Centre Toulousain pour le Contrôle Qualité en Biologie Clinique, 33, Route de Bayonne, 31300, Toulouse, France
| | - Delphine Garimbay
- CTCB, Centre Toulousain pour le Contrôle Qualité en Biologie Clinique, 33, Route de Bayonne, 31300, Toulouse, France
| | - Stéphanie Albarede
- CTCB, Centre Toulousain pour le Contrôle Qualité en Biologie Clinique, 33, Route de Bayonne, 31300, Toulouse, France
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Abstract
Congenital absence of the vas deferens (CAVD) may have various clinical presentations depending on whether it is bilateral (CBAVD) or unilateral (CUAVD), complete or partial, and associated or not with other abnormalities of the male urogenital tract. CBAVD is usually discovered in adult men either during the systematic assessment of cystic fibrosis or other CFTR-related conditions, or during the exploration of isolated infertility with obstructive azoospermia. The prevalence of CAVDs in men is reported to be approximately 0.1%. However, this figure is probably underestimated, because unilateral forms of CAVD in asymptomatic fertile men are not usually diagnosed. The diagnosis of CAVDs is based on clinical, ultrasound, and sperm examinations. The majority of subjects with CAVD carry at least one cystic fibrosis-causing mutation that warrants CFTR testing and in case of a positive result, genetic counseling prior to conception. Approximately 2% of the cases of CAVD are hemizygous for a loss-of-function mutation in the ADGRG2 gene that may cause a familial form of X-linked infertility. However, despite this recent finding, 10–20% of CBAVDs and 60–70% of CUAVDs remain without a genetic diagnosis. An important proportion of these unexplained CAVDs coexist with a solitary kidney suggesting an early organogenesis disorder (Wolffian duct), unlike CAVDs related to CFTR or ADGRG2 mutations, which might be the result of progressive degeneration that begins later in fetal life and probably continues after birth. How the dysfunction of CFTR, ADGRG2, or other genes such as SLC29A3 leads to this involution is the subject of various pathophysiological hypotheses that are discussed in this review.
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Affiliation(s)
- Eric Bieth
- Service de Génétique Médicale, Hôpital Purpan, CHU, 31059, Toulouse, France.
| | - Safouane M Hamdi
- Service de Biochimie, Institut Fédératif de Biologie, CHU, 31059, Toulouse, France.,EA3694 (Groupe de Recherche en Fertilité Humaine), Université Toulouse III, 31059, Toulouse, France
| | - Roger Mieusset
- EA3694 (Groupe de Recherche en Fertilité Humaine), Université Toulouse III, 31059, Toulouse, France.,Département d'Andrologie (Groupe Activité Médecine de la Reproduction), CHU, 31059, Toulouse, France
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Loussert L, Vidal F, Parant O, Hamdi SM, Vayssiere C, Guerby P. Aspirin for prevention of preeclampsia and fetal growth restriction. Prenat Diagn 2020; 40:519-527. [PMID: 31955436 DOI: 10.1002/pd.5645] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 12/23/2019] [Accepted: 01/02/2020] [Indexed: 12/12/2022]
Abstract
For the past decades, growing attention has been given to aspirin use during pregnancy. It favors placentation by its proangiogenic, antithrombotic, and anti-inflammatory effects. Therefore, low doses of aspirin are prescribed in the prevention of placenta-mediated complications, mainly preeclampsia and fetal growth restriction. However, questions regarding its clinical application are still debated. Aspirin is effective in preventing preeclampsia in a high-risk population. Most guidelines recommend that risk stratification should rely on medical history. Nevertheless, screening performances dramatically improve if biochemical and biophysical markers are included. Concerning the appropriate timing and dose, latest studies suggest aspirin should be started before 16 weeks of pregnancy and at a daily dose of 100 mg or more. Further studies are needed to improve the identification of patients likely to benefit from prophylactic aspirin. Besides, the role of aspirin in the prevention of fetal growth restriction is still questioned.
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Affiliation(s)
- Lola Loussert
- Department of Obstetrics and Gynecology, Paule de Viguier Hospital, CHU Toulouse, Toulouse, France
| | - Fabien Vidal
- Department of Obstetrics and Gynecology, Paule de Viguier Hospital, CHU Toulouse, Toulouse, France
| | - Olivier Parant
- Department of Obstetrics and Gynecology, Paule de Viguier Hospital, CHU Toulouse, Toulouse, France
| | - Safouane M Hamdi
- Laboratoire de Biochimie et d'Hormonologie, Institut Fédératif de Biologie, CHU Toulouse, Toulouse, France
| | - Christophe Vayssiere
- Department of Obstetrics and Gynecology, Paule de Viguier Hospital, CHU Toulouse, Toulouse, France
| | - Paul Guerby
- Department of Obstetrics and Gynecology, Paule de Viguier Hospital, CHU Toulouse, Toulouse, France.,Inserm U-1048, Université de Toulouse, Toulouse, France
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Mieusset R, Bieth E, Daudin M, Isus F, Delaunay B, Bujan L, Monteil L, Fauquet I, Huyghe E, Hamdi SM. Male partners of infertile couples with congenital unilateral absence of the vas deferens are mainly non-azoospermic. Andrology 2020; 8:645-653. [PMID: 31872980 DOI: 10.1111/andr.12749] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 12/11/2019] [Accepted: 12/16/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND Men with congenital unilateral absence of vas deferens were reported to be mainly azoospermic, with both unilateral renal absence and mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) but some have neither. OBJECTIVES To assess whether in infertile couples the male partners with congenital unilateral absence of vas deferens are mainly azoospermic men. MATERIAL AND METHODS Retrospective study in a unique university hospital; reproductive, clinical, CFTR analysis and seminal data of male partners of infertile couples (from 1998 to 2018) were analysed. Diagnosis of congenital unilateral absence of vas deferens was based on transrectal ultrasounds (TRUS): complete or partial absence of one vas deferens with complete contralateral vas deferens confirmed in 63 men. Distribution of sperm count in three classes: azoospermia, oligozoospermia or normozoospermia. Ultrasound determination of renal status; seminal biomarkers assays; and search for CFTR mutations. RESULTS Among the 63 men, 39.7% displayed azoospermia, 27% oligozoospermia and 33.3% normozoospermia; 42% of the non-azoospermic men (16/38) had previously obtained a natural pregnancy. We found unilateral renal absence in 17/59 patients (29%). Among 50 men with CFTR testing, five carried an allele associated with cystic fibrosis belonging to the 29 men without renal anomalies, indicating a high allelic frequency (8.6%). The 63 patients displayed high rates of surgical histories for undescended testicles or inguinal hernia, low values of semen volume and of total seminal glycerophosphocholine. CONCLUSIONS Our results indicate that men with congenital unilateral absence of vas deferens mainly display oligozoospermia or normozoospermia and that they were previously fertile. They clearly confirm, first, that CFTR testing is recommended in congenital unilateral absence of vas deferens men and it should be mandatory for those with normal kidneys; and, second, that TRUS is needed for the diagnosis of congenital unilateral absence of vas deferens. As congenital unilateral absence of vas deferens may be present whatever the sperm count, biological warnings are represented by semen volume and seminal epididymal markers and clinical warnings by surgical histories of undescended testes or inguinal hernia.
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Affiliation(s)
- Roger Mieusset
- Groupe de Recherche en Fertilité Humaine (Human Fertility Research Group), EA3694, Université Toulouse III - Paul Sabatier, Toulouse, France.,Andrologie - Médecine de la Reproduction, Hôpital Paule de Viguier, CHU de Toulouse, Toulouse, France
| | - Eric Bieth
- Génétique Médicale, Hôpital de Purpan, CHU de Toulouse, Toulouse, France
| | - Myriam Daudin
- Groupe de Recherche en Fertilité Humaine (Human Fertility Research Group), EA3694, Université Toulouse III - Paul Sabatier, Toulouse, France.,Explorations Biologiques - Médecine de la Reproduction, Hôpital Paule de Viguier, CHU de Toulouse, Toulouse, France
| | - Francois Isus
- Andrologie - Médecine de la Reproduction, Hôpital Paule de Viguier, CHU de Toulouse, Toulouse, France
| | - Boris Delaunay
- Andrologie - Médecine de la Reproduction, Hôpital Paule de Viguier, CHU de Toulouse, Toulouse, France
| | - Louis Bujan
- Groupe de Recherche en Fertilité Humaine (Human Fertility Research Group), EA3694, Université Toulouse III - Paul Sabatier, Toulouse, France.,Andrologie - Médecine de la Reproduction, Hôpital Paule de Viguier, CHU de Toulouse, Toulouse, France.,Explorations Biologiques - Médecine de la Reproduction, Hôpital Paule de Viguier, CHU de Toulouse, Toulouse, France
| | - Laetitia Monteil
- Génétique Médicale, Hôpital de Purpan, CHU de Toulouse, Toulouse, France
| | | | - Eric Huyghe
- Groupe de Recherche en Fertilité Humaine (Human Fertility Research Group), EA3694, Université Toulouse III - Paul Sabatier, Toulouse, France.,Andrologie - Médecine de la Reproduction, Hôpital Paule de Viguier, CHU de Toulouse, Toulouse, France
| | - Safouane M Hamdi
- Groupe de Recherche en Fertilité Humaine (Human Fertility Research Group), EA3694, Université Toulouse III - Paul Sabatier, Toulouse, France.,Laboratoire de Biochimie et d'Hormonologie, Institut fédératif de biologie, Hôpital Purpan, CHU Toulouse, Toulouse, France
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Hamdi SM, Sault C, Piver E, Genoux A, Masson D, Guibourdenche J. [Preeclampsia: Should screening and pronostic biomarkers be used in common clinical practice?]. Presse Med 2019; 48:1032-1036. [PMID: 31676218 DOI: 10.1016/j.lpm.2019.09.029] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 09/21/2019] [Indexed: 11/16/2022] Open
Affiliation(s)
- Safouane M Hamdi
- Groupe de recherche en fertilité humaine, EA3694, université Paul Sabatier, 31059 Toulouse, France; CHU de Toulouse, IFB, laboratoire de biochimie et d'hormonologie, 31059 Toulouse, France.
| | | | - Eric Piver
- CHRU de Tours, laboratoire de biochimie et biologie moléculaire, 37044 Tours, France
| | - Annelise Genoux
- CHU de Toulouse, IFB, laboratoire de biochimie et d'hormonologie, 31059 Toulouse, France
| | - Damien Masson
- CHRU de Nantes, laboratoire de Biochimie, 43095 Nantes, France
| | - Jean Guibourdenche
- AP-HP, hôpital Cochin, université Paris Descartes, laboratoire d'hormonologie, 75014 Paris, France
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Genoux A, Guerby P, Morin M, Perret B, Vayssière C, Hamdi SM. [Targeted screening for pre-eclampsia in the first trimester of pregnancy at Toulouse University Hospital]. Ann Cardiol Angeiol (Paris) 2018; 67:111-118. [PMID: 29786509 DOI: 10.1016/j.ancard.2018.04.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 04/27/2018] [Indexed: 10/16/2022]
Abstract
GOALS Preeclampsia (PE) is a leading cause of maternal and neonatal morbidity and mortality. Early treatment by aspirin has been shown to significantly reduce PE risk before 37weeks supporting the implementation of first-trimester screening. SUBJECTS AND METHODS A targeted screening was recently implemented at Toulouse University Hospital for women in their first pregnancy or those with personal or familial history of PE. It uses Fetal Medicine Foundation (FMF) algorithm that combines maternal characteristics, clinical, biophysical and biochemical (PAPP-A, Pregnancy Associated Plasma Protein-A, and PlGF, Placental Growth Factor) data. We describe this first population of pregnant women and compare our results with those of a mini-test that excludes PlGF and biophysical data. RESULTS Between October 2016 and September 2017, 500women have benefited from this screening. In such targeted population, we identified 3,6 % (n=18) of women at high risk to develop PE before 34weeks and 9,6 % (n=48) of women at high risk to develop PE between 34 and 37weeks. When we recalculated the risk using the mini-test, only 10women (56 %) were identified at high risk of early PE. CONCLUSION For the first time in France, we report the result of a targeted screening of PE during the first trimester using the FMF algorithm. We describe the screened population and show that it is more efficient than the mini-test.
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Affiliation(s)
- A Genoux
- Laboratoire de biochimie, institut fédératif de biologie, hôpital Purpan, CHU de Toulouse, 330, avenue de Grande-Bretagne, TSA 40031, 31059 Toulouse cedex 9, France.
| | - P Guerby
- Service de gynécologie-obstétrique Paule-de-Viguier, hôpital Purpan, CHU de Toulouse 330, avenue de Grande-Bretagne, TSA 70034, 31059 Toulouse cedex 9, France
| | - M Morin
- Service de gynécologie-obstétrique Paule-de-Viguier, hôpital Purpan, CHU de Toulouse 330, avenue de Grande-Bretagne, TSA 70034, 31059 Toulouse cedex 9, France
| | - B Perret
- Laboratoire de biochimie, institut fédératif de biologie, hôpital Purpan, CHU de Toulouse, 330, avenue de Grande-Bretagne, TSA 40031, 31059 Toulouse cedex 9, France
| | - C Vayssière
- Service de gynécologie-obstétrique Paule-de-Viguier, hôpital Purpan, CHU de Toulouse 330, avenue de Grande-Bretagne, TSA 70034, 31059 Toulouse cedex 9, France
| | - S M Hamdi
- Laboratoire de biochimie, institut fédératif de biologie, hôpital Purpan, CHU de Toulouse, 330, avenue de Grande-Bretagne, TSA 40031, 31059 Toulouse cedex 9, France
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Hamdi SM, Almont T, Galinier P, Mieusset R, Thonneau P. Altered secretion of Sertoli cells hormones in 2-year-old prepubertal cryptorchid boys: a cross-sectional study. Andrology 2017; 5:783-789. [PMID: 28544660 DOI: 10.1111/andr.12373] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 03/21/2017] [Accepted: 04/05/2017] [Indexed: 01/23/2023]
Abstract
In cryptorchid boys, failures in germ cell development have been clearly established. Some studies reported some abnormalities in Sertoli cells morphology but the results regarding their endocrine secretion remain controversial. To compare testicular hormone levels in young boys with and without cryptorchidism, we performed a cross-sectional hospital-based study. From surgery appointment records, we identified a case group of boys with unilateral or bilateral cryptorchidism and a control group undergoing dental care, minor osteoarticular or dermal surgery. Blood samples were withdrawn during the surgical procedure to perform testosterone, inhibin B and anti-müllerian hormone (AMH) immunoassays. We included 27 cryptorchid boys and 27 controls aged of 26.6 vs. 24.2 months, respectively (p = 0.172) far from the post-natal mini-puberty and the corresponding hormonal surges. Age-adjusted AMH and inhibin B levels were significantly lower in cryptorchid than in control boys (AMH: 87 ng/mL vs. 135 ng/mL; p = 0.009, inhibin B: 97 pg/mL vs. 133 pg/mL; p = 0.019, respectively). Moreover, AMH and inhibin B levels were significantly lower in the bilateral cryptorchid subgroup, being 50% lower than in the controls (p = 0.011 and 0.019, respectively) and while both hormones levels were independent in controls, they became strongly correlated in bilateral cryptorchid boys (R² = 0.75, p = 0.001). In addition, testosterone levels were still detectable in some boys, with significantly lower levels in cryptorchid group than in controls. Overall, 2-year-old cryptorchid patients presented a simultaneous and significant drop in AMH and inhibin B levels, suggesting a functional defect of Sertoli cells. This deficiency appeared more pronounced in bilateral cryptorchidism and thus, regarding the pivotal role of Sertoli cells in germ cell development, it may explain the compromised fertility found later in men born with such a malformation.
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Affiliation(s)
- S M Hamdi
- EA 3694 Human Fertility Research Group, CHU de Toulouse, University of Toulouse, Toulouse, France.,Laboratory of Biochemistry and Hormonology, CHU de Toulouse, University of Toulouse, Toulouse, France
| | - T Almont
- EA 3694 Human Fertility Research Group, CHU de Toulouse, University of Toulouse, Toulouse, France
| | - P Galinier
- Department of Paediatric Surgery, CHU de Toulouse, Université de Toulouse, Toulouse, France
| | - R Mieusset
- EA 3694 Human Fertility Research Group, CHU de Toulouse, University of Toulouse, Toulouse, France
| | - P Thonneau
- EA 3694 Human Fertility Research Group, CHU de Toulouse, University of Toulouse, Toulouse, France
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Mieusset R, Walschaerts M, Isus F, Almont T, Daudin M, Hamdi SM. Diagnosis of Partial Retrograde Ejaculation in Non-Azoospermic Infertile Men with Low Semen Volume. PLoS One 2017; 12:e0168742. [PMID: 28060836 PMCID: PMC5218555 DOI: 10.1371/journal.pone.0168742] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 12/06/2016] [Indexed: 01/23/2023] Open
Abstract
In non-azoospermic patients with low semen volume (LSV), looking for partial retrograde ejaculation (PRE) by searching sperm in the postejaculatory urine (PEU) is required. The use of a retro-ejaculatory index (R-ratio) was suggested to define PRE, but none of the studies indicated a specific threshold above which PRE must be considered. Our objective was to propose a threshold value for the R-ratio as indicative of PRE in patients with LSV selected to be devoid of any known causes or risk factors for retrograde ejaculation or LSV. Among our data base (2000–2009) including 632 patients with PEU, 245 male patients from infertile couples who had had a first semen analysis with LSV (< 2mL) and a second semen analysis associated with PEU, were selected on the previous criteria. A prospective control group was randomly constituted (2007–2008) of 162 first consulting male patients from infertile couples, with a normal semen volume (≥ 2mL) on a first semen analysis and who accepted to collect PEU with their usual second semen analysis, selected on the previous criteria. To define an R-ratio threshold indicative of PRE, we used a ROC curve analysis and a regression tree based on a classification and regression tree (CART) algorithm. Of the 245 LSV patients, 146 still presented low semen volume (< 2 mL) on the second semen analysis. From the use of the CART algorithm, two low (1.5% and 2.8%) and two high R-values (7.1% and 8.3%) were defined, according to the lower reference limit for semen volume of 2.0 mL (WHO 1999) or 1.5 mL (WHO 2010) respectively. As only one or no patient with normal semen volume was observed above the two high R-values, we suggest an R-value higher than the range of [7.1–8.3]% as indicative of PRE until confirmation by a prospective multicenter study.
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Affiliation(s)
- Roger Mieusset
- Université Toulouse III—Paul Sabatier, Groupe de Recherche en Fertilité Humaine (Human Fertility Research Group), Toulouse, France
- Andrologie—Médecine de la Reproduction, Hôpital Paule de Viguier, CHU de Toulouse, Toulouse, France
| | - Marie Walschaerts
- Université Toulouse III—Paul Sabatier, Groupe de Recherche en Fertilité Humaine (Human Fertility Research Group), Toulouse, France
| | - François Isus
- Université Toulouse III—Paul Sabatier, Groupe de Recherche en Fertilité Humaine (Human Fertility Research Group), Toulouse, France
- Andrologie—Médecine de la Reproduction, Hôpital Paule de Viguier, CHU de Toulouse, Toulouse, France
| | - Thierry Almont
- Université Toulouse III—Paul Sabatier, Groupe de Recherche en Fertilité Humaine (Human Fertility Research Group), Toulouse, France
| | - Myriam Daudin
- Université Toulouse III—Paul Sabatier, Groupe de Recherche en Fertilité Humaine (Human Fertility Research Group), Toulouse, France
- Explorations biologiques—Médecine de la Reproduction, Hôpital Paule de Viguier, CHU de Toulouse, Toulouse, France
| | - Safouane M. Hamdi
- Université Toulouse III—Paul Sabatier, Groupe de Recherche en Fertilité Humaine (Human Fertility Research Group), Toulouse, France
- * E-mail:
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Benazzouz A, Makhloufi-Chebli M, Hamdi SM, Boutemeur-Kheddis B, Silva AM, Hamdi M. Study of novel fluorescent coumarin-3,4-dihydropyrimidin-2(1H)-ones dyads. Estimation of ground- and excited-state dipole moments from a solvatochromic shift. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.02.095] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Rabahi A, Makhloufi-Chebli M, Hamdi SM, Silva AM, Kheffache D, Boutemeur-Kheddis B, Hamdi M. Synthesis and optical properties of coumarins and iminocoumarins: Estimation of ground- and excited-state dipole moments from a solvatochromic shift and theoretical methods. J Mol Liq 2014. [DOI: 10.1016/j.molliq.2014.02.029] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hamdi SM, Walschaerts M, Bujan L, Rostaing L, Kamar N. A prospective study in male recipients of kidney transplantation reveals divergent patterns for inhibin B and testosterone secretions. Basic Clin Androl 2014; 24:11. [PMID: 25780584 PMCID: PMC4349688 DOI: 10.1186/2051-4190-24-11] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 06/06/2014] [Indexed: 01/15/2023] Open
Abstract
Background Male patients with chronic kidney disease often exhibit the biological and clinical hallmarks of an abnormal hypothalamo–pituitary–gonadal axis. It is known that dialysis does not reverse this impaired endocrine status; however, the impact of kidney transplantation (KT) is still controversial. The aim of our study was to investigate the levels of serum gonadotropins, testosterone, and inhibin B during dialysis and after KT. Methods A longitudinal and prospective single center study was led in an academic setting. Blood hormones levels were assayed by immunoassays in 53 men (mean age: 37 years) receiving dialysis (T0) and at 6 months post-KT (T180). These data were compared with those from 46 fertile semen donors (mean age: 37 years). The main outcome measure was the between-groups differences in hormones levels. A second criterion was the comparison of T0 and T180 hormones levels according to the immunosuppressive regimen. Results For patients ongoing dialysis, luteinizing hormone (LH) and follicle-stimulating hormone (FSH) mean levels were high, whereas testosterone and inhibin B mean levels remained normal. After KT, LH levels returned to normal whereas FSH was significantly increased. Testosterone levels remained normal whereas inhibin B levels significantly decreased. We found that the combination tacrolimus plus mycophenolic acid significantly decreased post-KT inhibin B levels. Moreover, we found that pre-graft inhibin-B level was independent of testosterone and could predict low post-operative inhibin B level with a sensitivity of 77% and a specificity of 92%. Conclusions Our study suggests that endocrine secretions of Leydig and Sertoli cells are differently impacted by dialysis, KT and immunosuppressive regimen raising new issues to explore.
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Affiliation(s)
- Safouane M Hamdi
- Groupe de Recherche en Fertilité Humaine, EA 3694, Hôpital Paule de Viguier, Toulouse, F-31000 France ; Université Paul-Sabatier, Toulouse, F-31000 France
| | - Marie Walschaerts
- Groupe de Recherche en Fertilité Humaine, EA 3694, Hôpital Paule de Viguier, Toulouse, F-31000 France ; Université Paul-Sabatier, Toulouse, F-31000 France
| | - Louis Bujan
- Groupe de Recherche en Fertilité Humaine, EA 3694, Hôpital Paule de Viguier, Toulouse, F-31000 France ; Université Paul-Sabatier, Toulouse, F-31000 France
| | - Lionel Rostaing
- Université Paul-Sabatier, Toulouse, F-31000 France ; Département de Néphrologie et Transplantation d'Organes, CHU Toulouse, Toulouse, F-31000 France
| | - Nassim Kamar
- Université Paul-Sabatier, Toulouse, F-31000 France ; Département de Néphrologie et Transplantation d'Organes, CHU Toulouse, Toulouse, F-31000 France
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Rabahi A, Hamdi SM, Rachedi Y, Hamdi M, Talhi O, Almeida Paz FA, Silva AS, Fadila B, Malika H, Kamel T. 2D-NMR, X-ray crystallography and theoretical studies of the reaction mechanism for the synthesis of 1,5-benzodiazepines from dehydroacetic acid derivatives and o-phenylenediamines. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2013.12.082] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Aït-Baziz N, Hamdi SM, Silva AMS, Rachedi Y, Hamdi M, Trari M. A Novel and Efficient Synthetic Method of Benzo[ f]chromen-1-ones and Phenyl-4 H-chromen-4-one through Photooxidative Cyclization of 6-[( E)-2-Arylvinyl]-4 H-pyran-4-ones and 6-[(1 E,3E)-4-Phenylbuta-1,3-dien-1-yl]-4 H-pyran-4-one. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.1694] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Nabila Aït-Baziz
- Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques; BP 248 RP 16004 Algiers Algeria
- Faculté de Chimie, Laboratoire de Chimie Organique Appliquée (Equipe Hétérocycles); Université des Sciences et de la Techniques Houari Boumediene USTHB; BP 32 16111 Algiers Algeria
| | - Safouane M. Hamdi
- Laboratoire de Biochimie, Institut Fédératif de Biologie; Centre Hospitalo-Universitaire de Toulouse et Université de Toulouse; TSA 40031 31059 Toulouse cedex 3 France
| | - Artur M. S. Silva
- Department of Chemistry & QOPNA; University of Aveiro; 3810-193 Aveiro Portugal
| | - Yahia Rachedi
- Faculté de Chimie, Laboratoire de Chimie Organique Appliquée (Equipe Hétérocycles); Université des Sciences et de la Techniques Houari Boumediene USTHB; BP 32 16111 Algiers Algeria
| | - Maamar Hamdi
- Faculté de Chimie, Laboratoire de Chimie Organique Appliquée (Equipe Hétérocycles); Université des Sciences et de la Techniques Houari Boumediene USTHB; BP 32 16111 Algiers Algeria
| | - Mohamed Trari
- Faculté de Chimie, Laboratoire de Stockage et de Valorisation des Energies Renouvelables; Université des Sciences et de la Techniques Houari Boumediene USTHB; BP 32 16111 Algiers Algeria
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Hamdi SM, Vieitez G, Jaspard B, Barbaras R, Perret B, Mieusset R, Parinaud J, Collet X. Effects of human follicular fluid and high-density lipoproteins on early spermatozoa hyperactivation and cholesterol efflux. J Lipid Res 2009; 51:1363-9. [PMID: 19965575 DOI: 10.1194/jlr.m000679] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The preovulatory human follicular fluid contains only HDLs as a lipoprotein class with a typically high proportion of prebeta HDL. We first examined the role of follicular fluid and HDL subfractions on human spermatozoa capacitation, a process characterized by a hyperactivation of the flagellar movement and a depletion of plasma membrane cholesterol. Whole follicular fluid and isolated HDL, used at constant free cholesterol concentration, were both able to promote an early flagellar hyperactivation. Moreover, incubation of [(3)H]cholesterol-labeled spermatozoa with follicular fluid induced a rapid cholesterol efflux from spermatozoa that was confirmed by mass measurements of cholesterol transfer. Using isolated HDL, the cholesterol efflux had a similar time course and represented 70% of that mediated by whole follicular fluid. We then analyzed the time course of radioactive labeling of HDL subfractions. In the first minute of incubation, we found that the prebeta HDL fraction incorporated the main part of the radioactivity (60%), with the rest being found in alpha-HDL, but strikingly, the labeling of alpha-HDL increased with time at the expense of prebeta HDL.Thus, our results indicate that HDLs are involved in both spermatozoa hyperactivation and cholesterol effl ux and suggest the role of prebeta-HDL particles as fi rst cellular cholesterol acceptors.
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Benosmane N, Hamdi SM, Hamdi M, Boutemeur B. Selective transport of metal ions across polymer inclusion membranes (PIMs) containing calix[4]resorcinarenes. Sep Purif Technol 2009. [DOI: 10.1016/j.seppur.2008.10.039] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Abstract
The mammalian target of rapamycin (mTOR) is emerging as a promising target for antitumor therapy. However, the mechanism that contributes to its regulation in B lymphomas remains unknown. This study shows that in follicular lymphoma (FL) cells, mTOR is active because the cells displayed rapamycin-sensitive phosphorylation of p70S6 kinase and 4E-BP1. Moreover, immunohistochemistry applied on lymph node tissue sections obtained from patients with FL revealed that, in most cases, p70S6 kinase was highly phosphorylated compared to normal tonsillar tissue. In FL cells, mTOR was under control of both phospholipase D (PLD) and phosphatidylinositol 3-kinase (PI3K). Moreover, we demonstrated that Syk plays a central role in mTOR activation because we found that both expression and activity are elevated compared to normal or chronic lymphocytic leukemia B cells. We also provide evidence that Syk operates through PLD- and PI3K-independent pathways. Finally, Syk inhibition by piceatannol or by siRNA plasmids resulted in a potent inhibition of mTOR activity in FL cells, as well as in mantle cell lymphoma, Burkitt lymphoma, and diffuse large B-cell lymphoma. These findings suggest that the Syk-mTOR pathway has a critical function in FL survival, and therefore, that Syk could be a promising new target for B-lymphoma therapy.
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MESH Headings
- Burkitt Lymphoma/drug therapy
- Burkitt Lymphoma/enzymology
- Burkitt Lymphoma/pathology
- Cell Line, Tumor
- Enzyme Activation/drug effects
- Humans
- Intracellular Signaling Peptides and Proteins/metabolism
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/enzymology
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Lymph Nodes/metabolism
- Lymph Nodes/pathology
- Lymphoma, B-Cell/drug therapy
- Lymphoma, B-Cell/enzymology
- Lymphoma, B-Cell/pathology
- Lymphoma, Follicular/drug therapy
- Lymphoma, Follicular/enzymology
- Lymphoma, Follicular/pathology
- Lymphoma, Mantle-Cell/drug therapy
- Lymphoma, Mantle-Cell/enzymology
- Lymphoma, Mantle-Cell/pathology
- Neoplasm Proteins/metabolism
- Palatine Tonsil/enzymology
- Palatine Tonsil/metabolism
- Phosphatidylinositol 3-Kinases/metabolism
- Phospholipase D/metabolism
- Protein Kinases/metabolism
- Protein-Tyrosine Kinases/metabolism
- RNA, Small Interfering/genetics
- RNA, Small Interfering/pharmacology
- Ribosomal Protein S6 Kinases, 70-kDa/metabolism
- Signal Transduction/drug effects
- Stilbenes/pharmacology
- Syk Kinase
- TOR Serine-Threonine Kinases
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Affiliation(s)
- Ludivine Leseux
- INSERM U563-Centre de Physiopathologie Toulouse Purpan (CPTP), Département d'Oncogenèse et Signalisation dans les Cellules Hématopoïétiques, Centre Hospitalier Universitaire (CHU) Purpan-BP3028, Toulouse, France
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