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Reuben R, Karkaby L, McNamee C, Phillips NA, Einstein G. Menopause and cognitive complaints: are ovarian hormones linked with subjective cognitive decline? Climacteric 2021; 24:321-332. [PMID: 33719785 DOI: 10.1080/13697137.2021.1892627] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Subjective cognitive decline (SCD) and the loss of ovarian hormones after menopause have been independently linked to later-life Alzheimer's disease (AD). The objective of this review was to determine whether menopause and the loss of ovarian hormones contribute to cognitive complaints and SCD in women. This would suggest that SCD at the menopausal transition might be an important marker of eventual cognitive decline and AD. We conducted a literature search using PubMed, PsycINFO and Web of Science in July 2020. All English-language studies assessing SCD and cognitive complaints with respect to menopause and ovarian hormones were included. A total of 19 studies were included. Studies found that cognitive complaints increased across the menopause transition and were associated with reductions in attention, verbal and working memory, and medial temporal lobe volume. Women taking estrogen-decreasing treatments also had increased cognitive complaints and reduced working memory and executive function. The current literature provides impetus for further research on whether menopause and the loss of ovarian hormones are associated with cognitive complaints and SCD. Clinicians may take particular note of cognitive complaints after menopause or ovarian hormone loss, as they might presage future cognitive decline.
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Affiliation(s)
- R Reuben
- Department of Psychology, University of Toronto, Toronto, ON, Canada
| | - L Karkaby
- Department of Psychology, University of Toronto, Toronto, ON, Canada.,Tema Genus, Linköping University, Linköping, Sweden
| | - C McNamee
- Department of Psychology, University of Toronto, Toronto, ON, Canada
| | - N A Phillips
- Department of Psychology, Concordia University, Montreal, QC, Canada
| | - G Einstein
- Department of Psychology, University of Toronto, Toronto, ON, Canada.,Tema Genus, Linköping University, Linköping, Sweden.,Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.,Rotman Research Institute, Baycrest, Toronto, Ontario, Canada
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2
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Weiss KD, Coppolino A, Wiener DC, McNamee C, Riviello R, Ng JM, Jaklitsch MT, Marshall MB, Rochefort MM. Controlled apneic tracheostomy in patients with coronavirus disease 2019 (COVID-19). JTCVS Tech 2020; 6:172-177. [PMID: 33319213 PMCID: PMC7720733 DOI: 10.1016/j.xjtc.2020.11.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 11/09/2020] [Accepted: 11/18/2020] [Indexed: 12/14/2022] Open
Abstract
Objective To develop a team-based institutional infrastructure for navigating management of a novel disease, to determine a safe and effective approach for performing tracheostomies in patients with COVID-19 respiratory failure, and to review outcomes of patients and health care personnel following implementation of this approach. Methods An interdisciplinary Task Force was constructed to develop innovative strategies for management of a novel disease. A single-institution, prospective, nonrandomized cohort study was then conducted on patients with coronavirus disease 2019 (COVID-19) respiratory failure who underwent tracheostomy using an induced bedside apneic technique at a tertiary care academic institution between April 27, 2020, and June 30, 2020. Results In total, 28 patients underwent tracheostomy with induced apnea. The median lowest procedural oxygen saturation was 95%. The median number of ventilated days following tracheostomy was 11. There were 3 mortalities (11%) due to sepsis and multiorgan failure; of 25 surviving patients, 100% were successfully discharged from the hospital and 76% are decannulated, with a median time of 26 days from tracheostomy to decannulation (range 12-57). There was no symptomatic disease transmission to health care personnel on the COVID-19 Tracheostomy Team. Conclusions Patients with respiratory failure from COVID-19 disease may benefit from tracheostomy. This can be completed effectively and safely without viral transmission to health care personnel. Performing tracheostomies earlier in the course of disease may expedite patient recovery and improve intensive care unit resource use. The creation of a collaborative Task Force is an effective strategic approach for management of novel disease.
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Affiliation(s)
- Kathleen D Weiss
- Division of Thoracic Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, Mass
| | - Antonio Coppolino
- Division of Thoracic Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, Mass
| | - Daniel C Wiener
- Division of Thoracic Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, Mass
| | - Ciaran McNamee
- Division of Thoracic Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, Mass
| | - Robert Riviello
- Division of Trauma, Burn, Surgical and Critical Care, Department of Surgery, Brigham and Women's Hospital, Boston, Mass
| | - Ju-Mei Ng
- Department of Anesthesiology, Brigham and Women's Hospital, Boston, Mass
| | - Michael T Jaklitsch
- Division of Thoracic Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, Mass
| | - Margaret B Marshall
- Division of Thoracic Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, Mass
| | - Matthew M Rochefort
- Division of Thoracic Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, Mass
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Moore C, Whang B, Wiener D, McNamee C, Jaklitsch M, Bueno R, Tsukada H. ELECTROMAGNETIC NAVIGATIONAL (EMN) BRONCHOSCOPY AND EMN PERCUTANEOUS TRANSTHORACIC NEEDLE BIOPSY OF THE CHEST LESION: THE FIRST 102 CONSECUTIVE EARLY EXPERIENCE CASES. Chest 2019. [DOI: 10.1016/j.chest.2019.08.1471] [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: 11/16/2022] Open
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4
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White A, Kucukak S, Bueno R, Servais E, Lee DN, Colson Y, Jaklitsch M, McNamee C, Mentzer S, Wee J, Swanson SJ. Pneumonectomy is safe and effective for non-small cell lung cancer following induction therapy. J Thorac Dis 2017; 9:4447-4453. [PMID: 29268514 DOI: 10.21037/jtd.2017.10.92] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 12/25/2022]
Abstract
Background Uncertainty surrounds the safety and efficacy of pneumonectomy in the setting of induction chemoradiation for non-small cell lung cancer (NSCLC). We sought to evaluate fifteen years of experience with pneumonectomy with and without induction therapy. Methods Over a 15-year period [1999-2014], data were extracted from medical records of patients undergoing pneumonectomy for NSCLC. Primary outcomes were 5-year overall survival and mortality at 30, 60 and 90 days following operation. Morbidity data was also reviewed. Statistical comparisons were performed using the Chi-Square test. Kaplan-Meier curves were compared using the log rank test. Significance was defined as a P value less than 0.05. Patients with a prior cancer history, bilateral lung nodules and oligometastatic disease at presentation were excluded. Results After exclusion criteria were applied, 240 patients were analyzed and 137 (57%) underwent induction therapy prior to pneumonectomy. Five-year overall survival was 38.5%. Mortality at 90 days was 7.94%. There was no statistically significant difference in perioperative mortality with the addition of induction therapy. In fact, in the subset of patients with N2 disease (n=65), induction therapy was associated with improved 5-year overall survival (10.7% vs. 32.7%, P=0.014). Thirty-five percent of patients with N2 disease exhibited a complete response in the nodal basin following induction therapy; however, this did not confer a statistically significant overall or disease-free survival benefit. Conclusions Pneumonectomy can safely be performed in the setting of induction chemoradiation. In patients with N2 disease, induction therapy may confer a survival benefit when the surgery can be done with limited morbidity and mortality.
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Affiliation(s)
- Abby White
- Department of Surgery, Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Suden Kucukak
- Department of Surgery, Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Raphael Bueno
- Department of Surgery, Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Elliot Servais
- Department of Surgery, Division of Cardiovascular and Thoracic Surgery, Lahey Hospital and Medical Center, Burlington, MA, USA
| | - Daniel N Lee
- Department of Surgery, Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Yolonda Colson
- Department of Surgery, Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Michael Jaklitsch
- Department of Surgery, Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Ciaran McNamee
- Department of Surgery, Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Steven Mentzer
- Department of Surgery, Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Jon Wee
- Department of Surgery, Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Scott J Swanson
- Department of Surgery, Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, MA, USA
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Miller J, Shoni M, Siegert C, Lebenthal A, Godleski J, McNamee C. Benign Metastasizing Leiomyomas to the Lungs: An Institutional Case Series and a Review of the Recent Literature. Ann Thorac Surg 2015; 101:253-8. [PMID: 26321441 DOI: 10.1016/j.athoracsur.2015.05.107] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [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] [Received: 02/11/2015] [Revised: 04/16/2015] [Accepted: 05/18/2015] [Indexed: 02/03/2023]
Abstract
BACKGROUND Benign metastasizing leiomyomas (BMLs) represent the extrauterine spread of a benign uterine process. Pulmonary BMLs are the most common example of distant spread of uterine leiomyomas and are usually found incidentally in premenopausal women. The rarity of BMLs accounts for the limited literature that currently exists regarding their underlying pathophysiology, disease course, and management. METHODS A retrospective analysis was performed of all BML cases diagnosed and managed at Brigham and Women's Hospital during a 22-year period. The demographic and clinical characteristics of these patients were compared with a PubMed-derived cohort of BML cases reported since 2006. RESULTS Benign metastasizing leiomyoma tumors were identified in 10 Brigham and Women's Hospital patients, whereas 57 cases were reported in the literature. The average age at diagnosis was 54.1 and 46.7 years, respectively. Mean interval time from a pertinent gynecologic procedure to BML diagnosis was 23 years at Brigham and Women's Hospital. All patients demonstrated positivity for actin, desmin, and estrogen/progesterone receptors, confirming the diagnosis of uterine leiomyomas. Management primarily consisted of diagnostic resection with subsequent observation with or without hormonal suppression for residual pulmonary nodules. Progression of residual BMLs was noticed in 30% and 8.3% of Brigham and Women's Hospital and literature patients, respectively, when follow-up was reported. One patient in our series required further surgical management. CONCLUSIONS Benign metastasizing leiomyomas are a rare cause of pulmonary nodules. They likely represent a clonal spread of uterine leiomyomas to the lungs. Management includes pathologic diagnosis with long-term surveillance with or without hormonal manipulation.
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Affiliation(s)
- Jordan Miller
- Division of Thoracic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Melina Shoni
- Division of Thoracic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts; Division of Thoracic Surgery, West Roxbury Veterans Affairs Medical Center, West Roxbury, Massachusetts
| | - Charles Siegert
- Division of Thoracic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts; Division of Thoracic Surgery, West Roxbury Veterans Affairs Medical Center, West Roxbury, Massachusetts
| | - Abraham Lebenthal
- Division of Thoracic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts; Division of Thoracic Surgery, West Roxbury Veterans Affairs Medical Center, West Roxbury, Massachusetts
| | - John Godleski
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Ciaran McNamee
- Division of Thoracic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.
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Wiesel O, Bhattacharyya S, Vaitkevicius H, Prasad S, McNamee C. Ataxia induced by a thymic neuroblastoma in the elderly patient. World J Surg Oncol 2015; 13:178. [PMID: 25962639 PMCID: PMC4491252 DOI: 10.1186/s12957-015-0594-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Accepted: 04/24/2015] [Indexed: 11/10/2022] Open
Abstract
Thymic neuroblastoma is a rare tumor with only few reports in modern literature. Whereas most data is taken from childhood neuroblastoma, little is known about the characteristics of the disease in the adult and elderly population. There are significant differences between adult and childhood neuroblastoma which are reviewed below. We report a case of a 62-year-old male who presented with neurological symptoms of ataxia and opsoclonus and an anterior mediastinal mass. Ultimately, the patient underwent a resection of the mass and pathologic review identified a thymic neuroblastoma. This is the first case of thymic neuroblastoma associated with symptomatic central nervous system disease; it is presented with an up-to-date review of the previous cases in the field as well with a review of the literature of post adolescent neuroblastoma.
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Affiliation(s)
- Ory Wiesel
- Division of Thoracic Surgery, Brigham and Women's Hospital, Harvard Medical School, 75th Francis Street, Boston, 02115, MA, USA.
| | - Shamik Bhattacharyya
- Division of Neurology, Brigham and Women's Hospital, Harvard Medical School, 75th Francis Street, Boston, 02115, MA, USA.
| | - Henrikas Vaitkevicius
- Division of Neurology, Brigham and Women's Hospital, Harvard Medical School, 75th Francis Street, Boston, 02115, MA, USA.
| | - Sashank Prasad
- Division of Neurology, Brigham and Women's Hospital, Harvard Medical School, 75th Francis Street, Boston, 02115, MA, USA.
| | - Ciaran McNamee
- Division of Thoracic Surgery, Brigham and Women's Hospital, Harvard Medical School, 75th Francis Street, Boston, 02115, MA, USA.
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7
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McNamee C. Invited commentary. Ann Thorac Surg 2013; 96:1974. [PMID: 24296177 DOI: 10.1016/j.athoracsur.2013.05.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 05/20/2013] [Accepted: 05/24/2013] [Indexed: 11/16/2022]
Affiliation(s)
- Ciaran McNamee
- Department of Surgery, Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115.
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8
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McNamee C, Noci F, Cronin D, Lyng J, Morgan D, Scannell A. PEF based hurdle strategy to control Pichia fermentans, Listeria innocua and Escherichia coli k12 in orange juice. Int J Food Microbiol 2010; 138:13-8. [DOI: 10.1016/j.ijfoodmicro.2009.12.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2008] [Revised: 11/25/2009] [Accepted: 12/02/2009] [Indexed: 10/20/2022]
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9
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Wolf A, Tilleman T, Billmeier S, McNamee C, Bueno R, Sugarbaker D, Jaklitsch M. O6 Cytoreductive surgery for malignant pleural mesothelioma in the elderly: a single-center experience in 227 patients. Crit Rev Oncol Hematol 2009. [DOI: 10.1016/s1040-8428(09)70033-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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10
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Zota V, Angelis SM, Fraire AE, McNamee C, Kielbasa S, Libraty DH. Lessons from Mycobacterium avium complex-associated pneumonitis: a case report. J Med Case Rep 2008; 2:152. [PMID: 18477401 PMCID: PMC2396177 DOI: 10.1186/1752-1947-2-152] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2007] [Accepted: 05/13/2008] [Indexed: 11/12/2022] Open
Abstract
Introduction Mycobacterium avium complex (MAC) is an increasingly recognized cause of pulmonary disease in immunocompetent individuals. An acute form of MAC lung disease, MAC-associated pneumonitis, has generally been associated with the use of hot tubs. There is controversy in the literature about whether MAC-associated pneumonitis is a classic hypersensitivity pneumonitis or is a direct manifestation of mycobacterial infection. Case presentation We report the second case in the literature of MAC-associated pneumonitis not related to the use of hot tubs. The source of MAC in a 52-year-old immunocompetent patient was an intrapulmonary cyst containing numerous acid-fast bacilli. The patient developed disseminated miliary nodules throughout both lung fields. Histological examination of resected lung tissue revealed well-formed, acid-fast negative granulomas composed predominantly of CD4+ T-cells and CD68+ histiocytes. The granulomas were strongly positive for tumor necrosis factor-α, a pro-inflammatory cytokine. Conclusion The attempt to classify MAC-associated pneumonitis as either a classic hypersensitivity pneumonitis or a direct manifestation of mycobacterial infection is not particularly useful. Our case demonstrates that MAC-associated pneumonitis is characterized by a vigorous T-helper 1-like, pro-inflammatory, immune response to pulmonary mycobacterial infection. The immunopathology provides a rationale for clinical studies of anti-MAC therapy with the addition of anti-inflammatory agents (for example, corticosteroids) to hasten the resolution of infection and symptoms.
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Affiliation(s)
- Victor Zota
- Department of Pathology, Division of Infectious Disease, University of Massachusetts Medical School, Worcester, MA, USA.
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11
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Howard MR, Spiller D, Reed JE, McNamee C, White M, Moss DJ. No barrier to diffusion between cell soma and neurite membranes in sympathetic neurons for a GPI-anchored glycoprotein. Mol Cell Neurosci 2003; 24:296-306. [PMID: 14572454 DOI: 10.1016/s1044-7431(03)00165-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 11/15/2022] Open
Abstract
As neurons extend their axons, it is thought that newly synthesised membrane components travel in vesicles along the axon, fuse with the growth cone membrane, and diffuse back along the axonal membrane. However, it is difficult to explain how axons continue to be populated with membrane proteins as they extend in length. To investigate this problem, we have used a CEPU-green fluorescent protein (GFP) chimeric protein to study the site of insertion of new glycosyl phosphatidyl inositol (GPI)-anchored glycoproteins and their subsequent behaviour in chick dorsal root ganglia (DRG) neurons. Infection of cultures grown for 24 h revealed rapid expression of CEPU-GFP over the whole surface of the neuron, more rapidly than could be accounted for by diffusion from the growth cone, and fluorescence intensity was uniform along the length of the neurite. Photobleaching experiments of neurite membrane revealed that recovery of fluorescence was due to diffusion from adjacent membranes and there was no evidence for membrane flow in either direction. Photobleaching of membrane adjacent to the cell body also showed rapid recovery, with chimera diffusing both from cell body membrane and the distal neurite membrane into the bleached area. These results suggest there is no barrier to diffusion between the cell body and neurite membrane in DRG and sympathetic neurons cultured for 1 or 2 days in vitro. We propose that the neurite is populated by newly synthesised chimera by diffusion from both regions. This situation may also occur in neurons in the early stages of extending axons in vivo prior to polarisation and the development of the dendritic field.
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Affiliation(s)
- M R Howard
- Department of Human Anatomy and Cell Biology, The University of Liverpool, Liverpool, UK
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Abstract
The role and timing of surgical decortication in the management of a primary tuberculous pleural peel remains controversial. The present report describes the case of a young man with an extensive primary tuberculous pleural peel that responded dramatically to medical therapy. A serious attempt at surgical decortication three weeks into antituberculous drug therapy may have removed some compressive aspects of the peel, facilitating lung expansion. However, it had almost no measurable impact on the size of peel and was technically very difficult. Response to treatment was measured anatomically (computed tomography scans) and physiologically (pulmonary function tests).
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Affiliation(s)
- R Long
- University of Alberta Hospitals, Edmonton, Canada.
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13
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Seybold CA, Mersie W, McNamee C. Anaerobic degradation of atrazine and metolachlor and metabolite formation in wetland soil and water microcosms. J Environ Qual 2001; 30:1271-1277. [PMID: 11476505 DOI: 10.2134/jeq2001.3041271x] [Citation(s) in RCA: 8] [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] [Indexed: 05/23/2023]
Abstract
The half-lives, degradation rates, and metabolite formation patterns of atrazine (6-chloro-N2-ethyl-N4-isopropyl-1,3,5-triazine-2,4-diamine) and metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl) acetamide] were determined in an anaerobic wetland soil incubated at 24 degrees C for 112 d. At 0, 7, 14, 28, 42, 56, and 112 d, the soil and water were analyzed for atrazine and metolachlor, and their major metabolites. The soil oxidation-reduction potential reached -200 mV after 14 d. Degradation reaction rates were first-order for atrazine in anaerobic soil and for metolachlor in the aqueous phase. Zero-order reaction rates were best fit for atrazine in the aqueous phase and metolachlor in anaerobic soil. In anaerobic soil, the half-life was 38 d for atrazine and 62 d for metolachlor. In the aqueous phase above the soil, the half-life was 86 d for atrazine and 40 d for metolachlor. Metabolites detected in the anaerobic soil were hydroxyatrazine and deethylatrazine for atrazine, and relatively small amounts of ethanesulfonic acid and oxanilic acid for metolachlor. Metabolites detected in the aqueous phase above the soil were hydroxyatrazine, deethylatrazine, and deisopropylatrazine for atrazine, and ethanesulfonic acid and oxanilic acid for metolachlor. Concentrations of metabolites in the aqueous phase generally peaked within the first 25 d and then declined. Results indicate that atrazine and metolachlor can degrade under strongly reducing conditions found in wetland soils. Metolachlor metabolites, ethanesulfonic acid, and oxanilic acid are not significantly formed under anaerobic conditions.
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Affiliation(s)
- C A Seybold
- USDA-NRCS, Oregon State Univ, Corvallis 97331, USA
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14
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Abstract
To evaluate our experience with the cytodiagnosis of primary lung cancers by transthoracic fine-needle aspiration (TFNA), 106 bronchogenic carcinomas (BC) and 6 neuroendocrine tumors of the lung (NTL) with adequate needle aspirates were reviewed. The cytodiagnostic accuracy rates of BCs were 75.5%, 72%, 100%, 53%, and 50% for bronchogenic adenocarcinomas, squamous-cell carcinomas, small-cell carcinomas, large-cell carcinomas, and mixed carcinomas, respectively. Of the 6 NTLs, 4 typical carcinoid tumors (CT) were correctly diagnosed, 1 atypical CT was wrongly identified as small-cell carcinoma, and 1 large-cell NTL was mistaken for an adenocarcinoma.
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Affiliation(s)
- G K Nguyen
- Department of Laboratory Medicine and Pathology, University of Alberta Hospitals, Edmonton, Alberta, Canada.
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15
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Abstract
OBJECTIVE To evaluate the yield and cost effectiveness of transbronchial needle aspiration (TBNA) in the assessment of mediastinal and/or hilar lymphadenopathy. DESIGN Retrospective study. SETTING A university hospital. POPULATION STUDIED Ninety-six patients referred for bronchoscopy with computed tomographic evidence of significant mediastinal or hilar adenopathy. RESULTS Ninety-nine patient records were reviewed. Three patients had two separate bronchoscopy procedures. TBNA was positive in 42 patients (44%) and negative in 54 patients. Of the 42 patients with a positive aspirate, 40 had malignant cytology and two had cells consistent with benign disease. The positive TBNA result altered management in 22 of 40 patients with malignant disease and one of two patients with benign disease, thereby avoiding further diagnostic procedures. The cost of these subsequent procedures was estimated at $27,335. No complications related to TBNA were documented. CONCLUSIONS TBNA is a high-yield, safe and cost effective procedure for the diagnosis and staging of bronchogenic cancer.
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16
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Long R, Nobert E, Chomyc S, van Embden J, McNamee C, Duran RR, Talbot J, Fanning A. Transcontinental spread of multidrug-resistant Mycobacterium bovis. Am J Respir Crit Care Med 1999; 159:2014-7. [PMID: 10351954 DOI: 10.1164/ajrccm.159.6.9809076] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [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: 11/16/2022] Open
Abstract
Globally, the proportion of all cases of tuberculosis (TB) caused by drug-resistant strains is increasing. We report the case of a Canadian citizen who acquired a highly drug-resistant strain of Mycobacterium bovis while visiting a relative with AIDS-related tuberculosis in Spain. The origin of the strain was traced using spoligotyping, a polymerase chain reaction (PCR)-based fingerprint technology, and the European DNA database. The level of primary drug resistance-all five first-line drugs and 19 of 21 second-line drugs-in this case was unprecedented in Canada. Isolation of this strain from a Canadian citizen represents the first report of its appearance in this hemisphere. The infection was contained and combined medical-surgical treatment delivered.
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MESH Headings
- Acquired Immunodeficiency Syndrome/complications
- Acquired Immunodeficiency Syndrome/transmission
- Anti-Bacterial Agents/therapeutic use
- Canada
- Drug Therapy, Combination
- Female
- Humans
- Middle Aged
- Mycobacterium bovis/physiology
- Radiography, Thoracic
- Tomography, X-Ray Computed
- Tuberculosis
- Tuberculosis, Multidrug-Resistant/complications
- Tuberculosis, Multidrug-Resistant/drug therapy
- Tuberculosis, Multidrug-Resistant/surgery
- Tuberculosis, Multidrug-Resistant/transmission
- Tuberculosis, Pulmonary/complications
- Tuberculosis, Pulmonary/drug therapy
- Tuberculosis, Pulmonary/surgery
- Tuberculosis, Pulmonary/transmission
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Affiliation(s)
- R Long
- Departments of Medicine, Medical Microbiology, and Surgery, University of Alberta, Edmonton, Alberta, Canada
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17
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Abstract
Primary synovial sarcoma of the heart is a rare tumor, with only six previous cases having been reported in the literature. Treatment has included surgery with or without chemotherapy. We present the first case of a documented synovial sarcoma arising from the pericardium in a 19-year-old man. Molecular analysis for t(X; 18) SYT-SSX gene fusion was positive. Radiation treatment was given postoperatively to the entire heart with a boost to the area where the margins were positive.
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Affiliation(s)
- N Al-Rajhi
- Department of Radiation Oncology, Cross Cancer Institute, Edmonton, Alberta, Canada
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McNamee C. A decade of difference--MADD in Hawaii. Hawaii Med J 1994; 53:304. [PMID: 7836055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Patel RN, Banerjee A, Davis B, Howell J, McNamee C, Brzozowaski D, North J, Kronenthal D, Szarka L. Stereoselective epoxidation of 2,2-dimethyl-2H-1-benzopyran-6-carbonitrile. Bioorg Med Chem 1994; 2:535-42. [PMID: 8000876 DOI: 10.1016/0968-0896(94)80024-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [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
The chiral intermediate (3S,4R)-trans-3,4-dihydro-3,4-dihydroxy-2,2-dimethyl- 2H-1-benzopyran-6-carbonitrile [(+)-trans diol 3] was made by the stereoselective microbial epoxidation of 2,2-dimethyl-2H-1-benzopyran-6-carbonitrile 1. This compound is a potential intermediate for the total synthesis of potassium-channel openers. Several microbial cultures were found which catalyzed the transformation of 1 to the corresponding (3S,4S)-epoxide 2 and (+)-trans diol 3. The two best cultures, Corynebacterium sp. SC 13876 and Mortierella ramanniana SC 13840 gave reaction yields of 32 M% and 67.5 M% and optical purities of 88 and 96%, respectively, for (+)-trans diol 3. A single-stage process (fermentation-epoxidation) for the biotransformation of 1 was developed using Corynebacterium sp. SC 13876 and M. ramanniana SC 13840. In a 25-L fermentor, the (+)-trans diol 3 was obtained in 38.6 M% yield with an optical purity of 90% using Corynebacterium SC 13876. The reaction yield of 60.7 M% and optical purity of 92.5% were obtained for (+)-trans diol 3 using M. ramanniana SC 13840. A two-stage process for the preparation of (+)-trans diol 3 was also developed using a 3 L cell-suspension (10% w/v, wet cells) of M. ramanniana SC 13840. The reaction was carried out in a 5-L Bioflo fermentor. The concentration of substrate 1 was 2 g L-1 with glucose present at 10 g L-1. After 48 h, (+)-trans diol 3 was obtained in 76 M% yield with an optical purity of 96%.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- R N Patel
- Department of Microbial Technology, Bristol-Myers Squibb Pharmaceutical Research Institute, New Brunswick, New Jersey 08903
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McNamee C. A problem patient: breaking the barrier. RNABC News 1981; 13:10. [PMID: 6915619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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McNamee C, Maclean B. Nerve palsies: the preventable sort. Can Nurse 1980; 76:38-40. [PMID: 6249491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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McNamee C. Communicating with the hard-of-hearing. Can Nurse 1978; 74:27-9. [PMID: 639021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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