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Ghanem A, Bhatnagar A, Elshaikh M, Burmeister C, Elshaikh M. Recurrence Risk Stratification for Women with FIGO Stage I Uterine Endometrioid Carcinoma Who Underwent Surgical Lymph Node Evaluation. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1277] [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: 11/17/2022]
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2
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Cook A, Ghanem A, Hijaz M, Burmeister C, Elshaikh M. Patterns of Recurrence After Adjuvant Vaginal Cuff Brachytherapy and Chemotherapy in Early-Stage Uterine Serous Carcinoma. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1672] [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: 10/20/2022]
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3
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Mhanna M, Beran A, Nazir S, Al-Abdouh A, Barbarawi M, Sajdeya O, Srour O, Burmeister C, Malhas S, Eltahawy E. Distal versus conventional transradial access for coronary angiography and intervention: a systematic review and meta-analysis. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/13/2022] Open
Abstract
Abstract
Introduction
Distal transradial artery access (DTRA) has recently gained attention due to potential benefits in terms of local complications and risk of superficial palmar arch ischemia in case of radial artery occlusion.
Purpose
In this meta-analysis, we aimed to evaluate the utility of DTRA compared to conventional transradial artery access (CTRA) for coronary angiography and intervention.
Method
We performed a comprehensive literature search using multiple databases from inception through February 2021 for all the studies that evaluated the efficacy and safety of DTRA for coronary angiography and intervention. The primary outcome of interest was access success rate. The secondary outcomes were periprocedural local complications (site hematoma, radial artery occlusion or spasm) and procedural characteristics (cannulation, fluoroscopy, and radial artery compression times). All meta-analyses were conducted using a random-effect model.
Results
A total of 8 studies including 1630 patients (805 underwent DTRA vs. 825 with CTRA), were included in the final analysis. Three of the included studies were randomized controlled trials (RCTs), and the remainder were observational studies. The access success rate was similar in the two groups (odds ratio (OR): 0.61; 95% confidence interval (CI): 0.18–2.09; P=0.43; I2=72%). Similarly, no difference was observed in the overall periprocedural local complications rate (OR 0.63, 95% CI 0.38–1.04, P=0.07, I2=25%). On subgroup analysis, the rate of radial artery occlusion was significantly lower in DRTA group (OR 0.33, 95% CI 0.13–0.82, P=0.02, I2=0%). Regarding the procedural characteristics, the two approaches were different only in the cannulation time favoring the CTRA group (mean difference in minutes [MD] 0.96, 95% CI 0.16–1.76; P=0.02).
Conclusions
The DTRA represents an alternative site for radial artery access for coronary angiography and interventions, with a high success rate accompanied by a low risk of complications. Although the cannulation time was longer for the DTRA, this can potentially improve with training, practice, and utilization of ultrasound-guided punctures. The major advantage provided by the DTRA is the trend toward a lower risk of radial artery occlusion, which is frequently observed with the conventional approach. Further adequately powered RCTs are needed to confirm the safety and efficacy of this approach.
Funding Acknowledgement
Type of funding sources: None. Central illustration
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Affiliation(s)
- M Mhanna
- University Toledo Medical Center, Internal medicine, Toledo, United States of America
| | - A Beran
- University Toledo Medical Center, Internal medicine, Toledo, United States of America
| | - S Nazir
- University Toledo Medical Center, Cardiovascular medicine, Toledo, United States of America
| | - A Al-Abdouh
- Saint agnes hospital, Internal medicine, Baltimore, United States of America
| | - M Barbarawi
- University of Connecticut, Cardiovascular medicine, Farmington, United States of America
| | - O Sajdeya
- University Toledo Medical Center, Internal medicine, Toledo, United States of America
| | - O Srour
- University Toledo Medical Center, Internal medicine, Toledo, United States of America
| | - C Burmeister
- University Toledo Medical Center, Internal medicine, Toledo, United States of America
| | - S Malhas
- University Toledo Medical Center, Internal medicine, Toledo, United States of America
| | - E Eltahawy
- University Toledo Medical Center, Cardiovascular medicine, Toledo, United States of America
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Zhu S, Khalil R, Altairy O, Burmeister C, Dimitrova I, Elshaikh M. The Prognostic Impact of Time Interval Between Hysterectomy and Initiation of Adjuvant Radiation Treatment in Women With Early-Stage Endometrial Carcinoma. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2606] [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: 11/24/2022]
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5
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Ghanem A, Aref I, Khalil R, Burmeister C, Hanna R, Elshaikh M. Does the Time to Adjuvant Radiotherapy Impact Outcomes in Women With Stage III Uterine Cancer? Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2619] [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: 11/30/2022]
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6
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Cook A, Khalil R, Burmeister C, Dimitrova I, Elshaikh M. The Impact of Different Adjuvant Management Strategies on Survival Endpoints in Women with Early Stage Uterine Serous Carcinoma. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1531] [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: 11/25/2022]
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7
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Misselwitz B, Grau A, Berger K, Bruder I, Burmeister C, Hermanek P, Hohnhold R, Koennecke HC, Matthis C, Heuschmann PU. [Quality of care of acute ischemic stroke in Germany 2018]. Nervenarzt 2020; 91:484-492. [PMID: 32350547 DOI: 10.1007/s00115-020-00908-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
In this overview the current quality of acute in-hospital care of stroke patients in Germany in 2018 is described based on standardized and evidence-based quality indicators. For this purpose the reports of the regional quality assurance projects for stroke care, which collaborated within the German-speaking Stroke Registers Study Group (ADSR) were analyzed. Overall, more than 280,000 acute admissions of stroke patients were documented in the included quality assurance projects. The results regarding the defined 16 quality indicators comprising diagnostics, acute treatment, rehabilitation and secondary prevention showed a high level of acute inpatient treatment of stroke in Germany. Only a few quality indicators, such as early transfer for thrombectomy indicated a great necessity for process optimization.
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Affiliation(s)
- B Misselwitz
- Geschäftsstelle Qualitätssicherung Hessen (GQH), Frankfurter Str. 10-14, 65760, Eschborn, Deutschland.
| | - A Grau
- Neurologische Klinik mit Klinischer Neurophysiologie, Klinikum Ludwigshafen, Ludwigshafen, Deutschland
| | - K Berger
- Institut für Epidemiologie und Sozialmedizin, Universität Münster, Münster, Deutschland
| | - I Bruder
- Qualitätssicherung im Gesundheitswesen Baden-Württemberg GmbH (QiG), Stuttgart, Deutschland
| | | | - P Hermanek
- Bayerische Arbeitsgemeinschaft für Qualitätssicherung in der stationären Versorgung (BAQ), München, Deutschland
| | - R Hohnhold
- Externe Qualitätssicherung (EQS), Hamburg, Deutschland
| | - H C Koennecke
- Klinik für Neurologie - Stroke Unit, Vivantes Klinikum im Friedrichshain, Berlin, Deutschland
| | - C Matthis
- Institut für Sozialmedizin und Epidemiologie, Universitätsklinikum Schleswig-Holstein, Lübeck, Deutschland
| | - P U Heuschmann
- Institut für Klinische Epidemiologie und Biometrie, Universität Würzburg, Würzburg, Deutschland
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8
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Ghanem A, Schymick M, Bachiri S, Khalil R, Burmeister C, Sheqwara J, Chang S, Ghanem T, Siddiqui F. Does Age Impact Outcomes of Oropharyngeal squamous cell carcinoma? Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.204] [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: 10/24/2022]
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9
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Bergman D, Burmeister C, McHargue C, Lim H, Siddiqui F. Impact of Race and Gender on Outcomes for Total Skin Electron Beam Therapy in Mycosis Fungoides. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1371] [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: 10/26/2022]
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10
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Cook A, Khalil R, Burmeister C, Elshaikh M. Comparison of Adjuvant Radiation Treatment and Chemotherapy Sequencing in Women with Advanced Stage Endometrial Carcinoma. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1666] [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: 10/26/2022]
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11
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Bergman D, Chaugle S, Burmeister C, Hanna R, Elshaikh M. Does Charlson Comorbidity Score Dilute the Survival Impact of Adjuvant Radiation Therapy in Women with Early Stage Endometrial Cancer? A Matched Analysis. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1752] [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: 11/28/2022]
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12
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Feldman A, Chaugle S, Burmeister C, Elshaikh M. The Prognostic Significance of Race on Survival Endpoints in Women with Early Stage Endometrial Cancer. A Matched Analysis. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1199] [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: 11/17/2022]
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13
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Knippen K, Walkup N, Burmeister C, Dake J, Bishop K. Diet Expectations, Lactogenesis, Self-Efficacy, and Breastfeeding After Having Gestational Diabetes. J Acad Nutr Diet 2018. [DOI: 10.1016/j.jand.2018.06.073] [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: 11/25/2022]
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14
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Ghanem A, Modh A, Burmeister C, Munkarah A, Elshaikh M. Does age-adjusted Charlson comorbidity score skew survival endpoints in women with FIGO-stage III endometrial cancer? Gynecol Oncol 2018. [DOI: 10.1016/j.ygyno.2018.04.343] [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: 11/30/2022]
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15
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Modh A, Ghanem A, Burmeister C, Hanna R, Elshaikh M. What is the Optimal Adjuvant Treatment Sequence for Node-Positive Endometrial Cancer? Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1328] [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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16
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Ghanem A, Modh A, Burmeister C, Buekers T, Elshaikh M. Does Interval between Hysterectomy and Start of Radiation Treatment Influence Survival in Early Stage Endometrial Carcinoma? A National Cancer Database Analysis. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1299] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Ruffing T, Haunschild M, Egenolf M, Eymann W, Jost D, Wallmen G, Burmeister C. [Reasons for proximal femoral fracture surgery delays : Analysis of the structured dialog in Rheinland-Pfalz]. Unfallchirurg 2017; 119:936-942. [PMID: 27638550 DOI: 10.1007/s00113-016-0243-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND For the "preoperative stay" quality indicator , which is part of the external quality assurance for proximal femoral fractures (module 17/1), a tolerance range for surgery within 48 h after admission of ≤15 % is given. MATERIALS AND METHODS The structured dialog (2014) in Rheinland-Pfalz was analyzed with respect to reasons for delaying surgery for more than 48 h after admission. RESULTS A total of 331 cases were analyzed. In 60.7 % patient-related reasons and in 13.3 % administrative reasons were found. In 9.1 % the statements were not feasible. Due to a lack of software-related specifications in 7.3 % a wrong preoperative length of stay was generated. Wrong coding or a computer-related problem was found in 6.6 %. The most common reason for delay was the intake of an anticoagulant (25.7 %). CONCLUSION The significance of the quality indicator "Preoperative stay" without division into whether this was administrative or patient-related must be considered critically.
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Affiliation(s)
- T Ruffing
- Klinik für Unfallchirurgie und Orthopädie 1, Westpfalz-Klinikum GmbH, Hellmut-Hartert-Str. 1, 67655, Kaiserslautern, Deutschland. .,SQMed GmbH, Geschäftsstelle Qualitätssicherung Rheinland-Pfalz, Mainz, Deutschland.
| | - M Haunschild
- SQMed GmbH, Geschäftsstelle Qualitätssicherung Rheinland-Pfalz, Mainz, Deutschland.,Klinik für allgemeine Orthopädie, Endoprothetik und Kinderorthopädie, Katholisches Klinikum Koblenz-Montabaur, Koblenz-Montabaur, Deutschland
| | - M Egenolf
- SQMed GmbH, Geschäftsstelle Qualitätssicherung Rheinland-Pfalz, Mainz, Deutschland.,Klinik für Orthopädie und Unfallchirurgie, Evangelisches Krankenhaus Bad Dürkheim, Bad Dürkheim, Deutschland
| | - W Eymann
- SQMed GmbH, Geschäftsstelle Qualitätssicherung Rheinland-Pfalz, Mainz, Deutschland.,Medizinischer Dienst der Krankenversicherung Rheinland-Pfalz, Kaiserslautern, Deutschland
| | - D Jost
- SQMed GmbH, Geschäftsstelle Qualitätssicherung Rheinland-Pfalz, Mainz, Deutschland.,Abteilung Chirurgie, Stadtklinik Frankenthal, Frankenthal, Deutschland
| | - G Wallmen
- SQMed GmbH, Geschäftsstelle Qualitätssicherung Rheinland-Pfalz, Mainz, Deutschland.,Klinik für Unfallchirurgie und Orthopädie, Sankt Vincentius Krankenhaus Speyer, Speyer, Deutschland
| | - C Burmeister
- SQMed GmbH, Geschäftsstelle Qualitätssicherung Rheinland-Pfalz, Mainz, Deutschland
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Buro C, Burmeister C, Quack T, Grevelding CG. Identification and first characterization of SmEps8, a potential interaction partner of SmTK3 and SER transcribed in the gonads of Schistosoma mansoni. Exp Parasitol 2016; 180:55-63. [PMID: 28017636 DOI: 10.1016/j.exppara.2016.12.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 10/28/2016] [Accepted: 12/05/2016] [Indexed: 02/07/2023]
Abstract
In eukaryotes the roles of protein kinases (PKs) regulating important biological processes such as growth and differentiation are well known. Molecular, biochemical, and physiological analyses trying to unravel principles of schistosome development have substantiated the importance for PKs also in this parasite. Amongst others the role of SmTK3 was studied, one of the first cellular PKs characterized from Schistosoma mansoni. Its function was demonstrated in mitogenic and differentiation processes in the gonads. Furthermore, first insights were obtained for the downstream part of a signal transduction cascade SmTK3 is involved in, which includes the diaphanous homolog SmDia. Here we attempted to further unravel the SmTK3 signaling cascade by searching for upstream interaction partners. Using yeast three-hybrid (Y3H) analyses we detected the epidermal growth factor receptor (EGFR) pathway substrate 8 of S. mansoni (SmEps8) as the most interesting candidate. By detailed interaction analyses we showed a contribution of the Src homology (SH) domains SH2 and SH3 of SmTK3 to binding, with a clear bias towards SH2. Compared to full-length SmEps8, binding was enhanced when only its 5' part including the phosphotyrosine binding domain (PTB) was used for interaction analyses including the SH2 domain of SmTK3, although phosphorylation seemed not to play a decisive role for binding. RT-PCR analyses and in situ hybridization experiments demonstrated similar transcription patterns of SmTK3 and SmEPS8, which co-localize in the reproductive organs. Furthermore, first evidence was obtained for SmEps8 interaction and colocalization with SER, one of the epidermal growth factor receptor (EGFR) homologs detected in S. mansoni. The results of this study provide first evidence for a SER-SmEps8-SmTK3-SmDia signal transduction pathway controlling differentiation processes in the gonads of S. mansoni.
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Affiliation(s)
- C Buro
- BFS, Institute of Parasitology, Justus-Liebig-University Giessen, Germany
| | - C Burmeister
- BFS, Institute of Parasitology, Justus-Liebig-University Giessen, Germany
| | - T Quack
- BFS, Institute of Parasitology, Justus-Liebig-University Giessen, Germany
| | - C G Grevelding
- BFS, Institute of Parasitology, Justus-Liebig-University Giessen, Germany.
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Al Feghali K, Ghanem A, Chang S, Ghanem T, Burmeister C, Keller C, Siddiqui F. Smoking Predicts for Worse Pathological Features in Oral Cavity Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1602] [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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20
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Ghanem A, Al Feghali K, Chang S, Ghanem T, Burmeister C, Siddiqui F. Clinicopathologic Features and Survival Outcomes Among Young Patients With Squamous Cell Carcinoma of the Oral Cavity. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1545] [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: 11/28/2022]
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21
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Xu Y, Hanna R, Burmeister C, Munkarah A, Elshaikh M. Predictors of survival after recurrence in women with early-stage endometrial carcinoma. Gynecol Oncol 2016. [DOI: 10.1016/j.ygyno.2016.04.203] [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: 12/01/2022]
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22
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Al Feghali K, Rasool N, Burmeister C, Elshaikh M. Predictive capacity of 3 comorbidity indices in estimating survival endpoints in women with early-stage endometrial carcinoma. Gynecol Oncol 2016. [DOI: 10.1016/j.ygyno.2016.04.205] [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: 11/28/2022]
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23
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Vance S, Burmeister C, Rasool N, Buekers T, Elshaikh M. Salvage Versus Adjuvant Radiation Treatment for Women With Early-Stage Endometrial Carcinoma: A Matched Analysis. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.027] [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: 10/22/2022]
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Robin A, Raghunathan A, Leung D, Burmeister C, Poisson L, Scarpace L, Walbert T, Mikkelsen T, Lee I. GE-29 * EXPRESSION SUBCLASS PROFILE IN PSEUDOPROGRESSION AND TRUE PROGRESSION IN NEWLY DIAGNOSED GBM. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou256.28] [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: 11/12/2022] Open
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25
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Perbandt M, Burmeister C, Höppner J, Walter RD, Betzel C, Liebau E. X-ray structures of glutathione S-transferases from Sporozoa and Helminth organism will form the basis for a structure-based drug design. Acta Crystallogr A 2004. [DOI: 10.1107/s0108767304096953] [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: 11/10/2022] Open
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Burmeister C, Perbandt M, Betzel C, Walter RD, Liebau E. Crystallization and preliminary X-ray diffraction studies of the glutathione S-transferase from Plasmodium falciparum. Acta Crystallogr D Biol Crystallogr 2003; 59:1469-71. [PMID: 12876354 DOI: 10.1107/s0907444903011090] [Citation(s) in RCA: 7] [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] [Subscribe] [Scholar Register] [Received: 04/02/2003] [Accepted: 05/19/2003] [Indexed: 11/10/2022]
Abstract
Glutathione S-transferases (GSTs) belong to a family of detoxification enzymes that conjugate glutathione to various xenobiotics, thus facilitating their expulsion from the cells. For high-resolution crystallographic investigations, GST from the human malarial parasite Plasmodium falciparum was overexpressed in bacterial cells and crystallized using hanging-drop vapour diffusion. X-ray intensity data to 2.8 A resolution were collected from an orthorhombic crystal form with unit-cell parameters a = 62.2, b = 88.3, c = 75.3 A. A search for heavy-atom derivatives has been initiated, along with phase-determination efforts by molecular replacement.
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Affiliation(s)
- C Burmeister
- Department of Biochemistry, Bernhard Nocht Institute for Tropical Medicine, Bernhard-Nocht-Strasse 74, 20359 Hamburg, Germany
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Wolf K, Burmeister C, Kober G, Kaltenbach M. [Diameter of coronary arteries before and after bypass grafting (author's transl)]. Z Kardiol 1979; 68:207-13. [PMID: 313636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Patients with patent coronary bypass grafts showed the followings: 1. a decrease in prestenotic coronary diameter due to a reduction in flow. 2. An increase of the poststenotic segment of the bypassed vessel due to an increase in flow via the venous graft. 3. An increase of the bypassed stenosis, mainly due to a general decrease of vessel diameter proximal to the stenosis. 4. No change in diameter in non bypassed arteries. The postoperative changes in diameter were not dependent on the time elapsed since surgery and were independent from the severity of coronary sclerosis and the number of risk factors. A correlation was found between the amount of the diameter changes and the amount of reduction in exercise induced ST-segment depression. The decrease in coronary diameter proximal to the stenosis is not due to progression of coronary sclerosis but to a functional change. A narrow poststenotic vessel does not constitute a contraindication for bypass grafting because its true diameter is flow dependent and cannot be judged with certainty from the preoperative angiogram.
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