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Shaheen S, Huang H, Arain MB, Z Duraihem F. Significance of peripheral layer: the case of mucus flow through a ciliated tube using Rabinowitsch model. Comput Methods Biomech Biomed Engin 2023:1-12. [PMID: 37969068 DOI: 10.1080/10255842.2023.2281892] [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: 11/06/2023] [Indexed: 11/17/2023]
Abstract
Modern medicine has taken energy loss during cilia beating in the human stomach, which under some circumstances causes blood flow to become acidic, very seriously. In current report covering a whole advancement and results for the impact of Rabinowitsch model with cilia-driven flow analysis with the help of ciliary beating in a cylindrical tube. The fluid is incompressible, and layers of fluid do not mix. The fluid flow with heat and mass transfer is firstly modeled in wave and then transformed into fixed frame. Exact solutions for stresses, temperature velocity, and concentration profiles whereas numerical pressure rise is obtained subject to relevant boundary conditions. The behavior of incipient parameters is shown graphically (plotted in MATHEMATICA 13.0) in the results section. The key findings obtained from graphical results show that maximum magnitude for velocity and temperature is achieved in middle layer of fluid whereas in the outer layer concentration profile is maximum. The current study may help researchers to develop new treatments for diseases such as cystic fibrosis, in which impaired ciliary function leads to mucus accumulation in the lungs. The attained exact and numerical outcomes are novel and offered here for first time in literature.
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Affiliation(s)
- S Shaheen
- Laboratory of Aerospace Entry Descent and Landing Technology, College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing, People's Republic of China
| | - H Huang
- Laboratory of Aerospace Entry Descent and Landing Technology, College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing, People's Republic of China
| | - M B Arain
- State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Faisal Z Duraihem
- Department of Mathematics, college of science, King Saud University, Riyadh, Saudi Arabia
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Ijaz S, Shaheen S, Shahzadi I, Muhammad T. Modulated complexed stenosed region consequences under the electroosmotic stimulation. Sci Rep 2023; 13:17862. [PMID: 37857804 PMCID: PMC10587118 DOI: 10.1038/s41598-023-45210-3] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 10/17/2023] [Indexed: 10/21/2023] Open
Abstract
The present study analyzes the theoretical consequences of slip effects in a complex stenosed region. The flow of blood in a stenosed region is incorporated with hybrid nanofluid features which are being prepared with copper and copper oxide nanoparticles. The flow is also intensified by applying an electric field in the axial direction. The governing equations for the proposed paradigm are solved and the corresponding closed-form solutions are obtained for the cases of mild stenosis. Parameters such as Electro-osmotic, velocity slip and Helmholtz-Smoluchowski are specially focused in this study. The heat transfer, hemodynamic velocity, wall shear stress and resistance impedance for the flow are precisely determined. The various parameters that influence the physical characteristics of flow are plotted, and their effects are discussed in detail. The present model has the potential application in medical pumps for drug delivery systems.
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Affiliation(s)
- S Ijaz
- Department of Mathematics, Faculty of Sciences, Rawalpindi Women University, Rawalpindi, Pakistan.
| | - S Shaheen
- Department of Mathematics, Faculty of Sciences, Rawalpindi Women University, Rawalpindi, Pakistan
| | - Iqra Shahzadi
- Department of Mathematics, Faculty of Sciences, Rawalpindi Women University, Rawalpindi, Pakistan
| | - Taseer Muhammad
- Department of Mathematics, King Khalid University, 62529, Abha, Saudi Arabia
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Brown E, Jr GAF, Shelton A, Johnson T, Chen C, Shaheen S, Holden TL, Dao VA, Bien JYE, King D, Vitzthum L, Kirilcuk N, Morris A, Kin C, Dawes A, Sheth V, Chang DT, Pollom E. A Technology-Informed Approach to Clinical Trial Equity. Int J Radiat Oncol Biol Phys 2023; 117:e8. [PMID: 37786184 DOI: 10.1016/j.ijrobp.2023.06.664] [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] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Despite efforts to increase participation of diverse communities in clinical trials, ethnic/racial minorities remain underrepresented. One such determinant may be lack of access to a comprehensive cancer center that conducts clinical research. Historically, our institution has had low accrual from rural regions further away from our cancer center, with Hispanic or Latino (HL) patients (pts) being especially underrepresented in our clinical research. In this study, we explored the impact of a clinical trial that allowed pts to receive chemotherapy (chemo) with their local oncologist. We hypothesize that allowing pts to receive chemo locally will lead to higher rates of enrollment from populations under-represented in clinical trials. MATERIALS/METHODS We conducted a study for pts with rectal cancer to undergo short-course radiation followed by 4 months of chemo with the option to pursue watch and wait if pts achieve a clinical complete response. Radiation was administered at our institution while pts could receive standard-of-care chemo closer to home with their local oncologist. For pts who received chemo locally, the research coordinator and co-investigators held video visits with the pts prior to each chemo infusion to review adverse events (AE), labs, and chemo dosing. We compared demographic data of pts on this trial with that of pts enrolled across all adult therapeutic oncologic clinical trials over the same time period at our institution. Distance to our institution was calculated based on pts' primary residence zip code. Protocol compliance with AE reporting for pts who received chemo locally was assessed by chart review. RESULTS Between May 2020 and January 2023, 24/35 enrolled pts completed both radiation and chemo on trial. 13/24 pts (54%) received chemo locally. Of the 24 pts, 16 were White (67%), 7 Asian (29%), 1 Native Hawaiian/ Pacific Islander (4%). Of all enrolled patients, 4 were HL (16.7%), compared to our institutional average of 16.5%. All enrolled HL pts received their chemo locally. The average distance traveled by non-HL pts from their home to our institution was 87.7 miles (range 5.1 - 308). In contrast, HL pts traveled an average of 147.8 miles (range 110 - 249), 68% further than their non-HL counterparts. There was 100% compliance with AE reporting among those pts who received their chemo locally. CONCLUSION Although the percentage of HL participation in our study was consistent with our institutional average, all HL pts enrolled on the trial received treatment locally and lived substantially further from our institution than non-HL. By allowing pts to receive this part of treatment locally, we provided pts who live further away an opportunity to engage in clinical research without the associated financial and time toxicities related with traveling for treatment. By decentralizing clinical trials and leveraging telemedicine, we can promote the participation of under-represented groups in clinical trials.
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Affiliation(s)
- E Brown
- Department of Radiation Oncology, Stanford University School of Medicine, Palo Alto, CA
| | - G A Fisher Jr
- Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - A Shelton
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA
| | - T Johnson
- Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - C Chen
- Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - S Shaheen
- Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - T L Holden
- Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - V A Dao
- Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - J Y E Bien
- Kaiser Permanente Santa Clara Medical Center, Santa Clara, CA
| | - D King
- Department of Medical Oncology/Hematology, Northwell Health Cancer Institute, New Hyde Park, NY
| | - L Vitzthum
- Department of Radiation Oncology, Stanford University School of Medicine, Palo Alto, CA
| | - N Kirilcuk
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA
| | - A Morris
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA
| | - C Kin
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA
| | - A Dawes
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA
| | - V Sheth
- Department of Radiology, Stanford University School of Medicine, Palo Alto, CA
| | - D T Chang
- Department of Radiation Oncology, Michigan Medicine, Ann Arbor, MI
| | - E Pollom
- Department of Radiation Oncology, Stanford University School of Medicine, Palo Alto, CA
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Broder J, Robertson J, Peterson T, Shaheen S. 364 A Dangerous Case of the “Goldilocks Effect”: Experimental Demonstration of Potential Vascular Injury Mechanism with Central Venous Catheter Insertion. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.393] [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]
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Tasqeeruddin S, Asiri YI, Shaheen S. Zirconium(IV) Oxychloride Octahydrate (ZrOCl2·8H2O): An Efficient Catalyst for the One-Pot Multicomponent Synthesis of Hexahydroquinoline Derivatives under Conventional Heating and Microwave Irradiation. Russ J Org Chem 2022. [DOI: 10.1134/s1070428022070107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Syed T, Asiri YI, Shaheen S. Synthesis and Anticancer Assessment of Various Amide Derivatives of Imidazo[2,1-b]Oxazoles as Anticancer Agents. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2030766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Tasqeeruddin Syed
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Yahya I. Asiri
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - S. Shaheen
- Anwarul Uloom College of Pharmacy, Hyderabad, India
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Pollom EL, Shelton A, Fisher GA, Bien J, King D, Johnson TP, Chen C, Shaheen S, Chong CR, Vitzthum L, Kirilcuk N, Morris AM, Kin C, Dawes A, Sheth V, Sundaram V, Brown E, Chang DT. Phase II trial of organ preservation program using short-course radiation and folfoxiri for rectal cancer (SHORT-FOX). J Clin Oncol 2022. [DOI: 10.1200/jco.2022.40.4_suppl.tps218] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
TPS218 Background: Locally advanced rectal cancer is treated with preoperative chemoradiotherapy followed by total mesorectal excision (TME). While this trimodal approach achieves low rates of local recurrences, distant metastasis rates can exceed 25%. Total neoadjuvant therapy (TNT) has been shown in OPRA, RAPIDO, and PRODIGE23 to reduce risk of distant metastasis and improve rates of pathological complete response compared to standard preoperative chemoradiotherapy. Thus, TNT not only addresses distant disease, but gives opportunity to reduce locoregional morbidity through organ preservation. We propose a treatment approach that incorporates TNT with FOLFOXIRI and up-front short-course radiation with the goal of increasing clinical complete response (cCR) rates and thereby eligibility for organ preservation. Currently, clinical response following neoadjuvant therapy is best assessed by a multidisciplinary team and includes flexible endoscopy and MRI. Circulating tumor DNA (ctDNA) analysis can be used as a noninvasive method for tumor monitoring. Biomarker development is essential to better select patients for treatment de-escalation and monitor for recurrence in order not to jeopardize the excellent cure rates following standard of care therapy. Methods: This is a single-arm, open-label, non-randomized study of an organ preservation approach using short-course radiation followed by FOLFOXIRI for patients with > T2N0 or low T2N0, M0 rectal adenocarcinoma (NCT04380337). Patients undergo radiation (25 Gy/5 fractions + 5 Gy/1 fraction boost) followed by 8 cycles of FOLFOXIRI. Patients are assessed for response at 8 weeks following chemotherapy completion using pelvic MRI (MRI Tumor Regression Grading), flexible sigmoidoscopy, and digital rectal exam. Those who achieve a cCR can defer TME and be surveilled. The primary objective is to assess cCR, with the hypothesis that this approach will achieve higher cCR rates than historical controls (40 versus 20%). Secondary objectives include assessing toxicity, local regrowth rate, disease-free survival, colostomy-free survival, overall survival, and longitudinal health-related quality of life. ctDNA will be collected throughout treatment and surveillance, and correlative studies will assess the association between ctDNA levels and cCR, local regrowth, and disease-free survival. A Simon 2-stage design addressed our primary objective. Assuming a one-sided type 1 error of 0.1, power of 0.9, a null cCR of 0.2 versus an alternate cCR of 0.4, we plan to enroll 37 patients. The null hypothesis will be rejected if > = 11 patients have cCR. Seventeen patients have been enrolled and the trial is currently on hold for planned interim analysis for futility and safety. If < = 3 patients have cCR or if > = 7 patients have non-hematologic grade 4+ toxicity, the study will be stopped. Otherwise, we will continue to enroll 20 more patients. Clinical trial information: NCT04380337.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Lucas Vitzthum
- Department of Radiation Oncology, Stanford University, Stanford, CA
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Abstract
Background Peptide receptor radionuclide therapy (PRRT) with radiolabeled somatostatin receptor (SSR) analogs is now an established systemic treatment for neuroendocrine tumors (NET). However, more short- and long-term data about renal and hepatotoxicity is needed. Here we present our experience in this clinical scenario. Methods Eighty-six patients with progressive SSR-expressing malignancies underwent PRRT with Lu-177 Dotatate and were followed up for up to 2 years. Laboratory tests were done 1 week before each cycle and every 2 months at follow-up. Hepatic and renal toxicity was determined based on NCI CTCAE V5.0. Results 55/86 (64%) patients completed all 4 cycles of PRRT; 18/86 (20.9%) are currently being treated; 13/86 (15.1%) had to discontinue PRRT: 4/13 (31%) due to hematologic toxicity, 9/13 (69%) due to non-PRRT-related comorbidities. Out of the patients who finished treatment, only transient grade 2 toxicities were observed during PRRT: hypoalbuminemia in 5.5% (3/55), and renal toxicity (serum creatinine and estimated glomerular filtration rate) in 1.8% (1/55). No grade 3 or 4 liver and renal toxicity occurred. Patients presenting with impaired liver or renal function prior to PRRT, either improved or had stable findings. No deterioration was observed. Conclusion Peptide receptor radionuclide therapy does not have a negative impact on liver and renal function, even in patients with pre-existing impaired parameters. No grade 3 or 4 hepatic or renal toxicity was identified. Only transient grade 2 hypoalbuminemia in 5.5% and nephrotoxicity in 1.8% of patients were seen during PRRT.
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Affiliation(s)
- Heying Duan
- Corresponding author: Heying Duan, MD, Department of Radiology, Division of Nuclear Medicine and Molecular Imaging, Stanford University, 300 Pasteur Drive, C21, MC: 5281 Stanford, CA 94305, USA. Tel: +1 650 224 4616;
| | - Valentina Ferri
- Department of Radiology, Division of Nuclear Medicine and Molecular Imaging, Stanford University, Stanford, CA, USA
| | - George Albert Fisher
- Department of Medicine, Division of Oncology, Stanford University, Stanford, CA, USA
| | - Shagufta Shaheen
- Department of Medicine, Division of Oncology, Stanford University, Stanford, CA, USA
| | - Guido Alejandro Davidzon
- Department of Radiology, Division of Nuclear Medicine and Molecular Imaging, Stanford University, Stanford, CA, USA
| | - Andrei Iagaru
- Department of Radiology, Division of Nuclear Medicine and Molecular Imaging, Stanford University, Stanford, CA, USA
| | - Carina Mari Aparici
- Department of Radiology, Division of Nuclear Medicine and Molecular Imaging, Stanford University, Stanford, CA, USA
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Devine M, Merriott D, Say C, Yoo C, Yi E, Lau B, Ko R, Shaheen S, Neal J, Wakelee H, Das M, Loo B, Diehn M, Chin A, Vitzthum L. Patterns of Care in Patients With Isolated Nodal Recurrence After Definitive Stereotactic Ablative Radiotherapy for Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1235] [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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Khalid S, Siddique R, Shaheen S, Shahid MN, Shamim Z, Khan MKA, Serçe ÇU. Current understanding of an Emerging Coronavirus using in silico approach: Severe Acute Respiratory Syndrome-Coronavirus-2 (SARS-CoV-2). BRAZ J BIOL 2021; 83:e247237. [PMID: 34495154 DOI: 10.1590/1519-6984.247237] [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] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 04/09/2021] [Indexed: 11/22/2022] Open
Abstract
Novel coronavirus (nCoV) namely "SARS-CoV-2" is being found responsible for current PANDEMIC commenced from Wuhan (China) since December 2019 and has been described with epidemiological linkage to China in about 221 countries and territories until now. In this study we have characterized the genetic lineage of SARS-CoV-2 and report the recombination within the genus and subgenus of coronaviruses. Phylogenetic relationship of thirty nine coronaviruses belonging to its four genera and five subgenera was analyzed by using the Neighbor-joining method using MEGA 6.0. Phylogenetic trees of full length genome, various proteins (spike, envelope, membrane and nucleocapsid) nucleotide sequences were constructed separately. Putative recombination was probed via RDP4. Our analysis describes that the "SARS-CoV-2" although shows great similarity to Bat-SARS-CoVs sequences through whole genome (giving sequence similarity 89%), exhibits conflicting grouping with the Bat-SARS-like coronavirus sequences (MG772933 and MG772934). Furthermore, seven recombination events were observed in SARS-CoV-2 (NC_045512) by RDP4. But not a single recombination event fulfills the high level of certainty. Recombination mostly housed in spike protein genes than rest of the genome indicating breakpoint cluster arises beyond the 95% and 99% breakpoint density intervals. Genetic similarity levels observed among "SARS-CoV-2" and Bat-SARS-CoVs advocated that the latter did not exhibit the specific variant that cause outbreak in humans, proposing a suggestion that "SARS-CoV-2" has originated possibly from bats. These genomic features and their probable association with virus characteristics along with virulence in humans require further consideration.
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Affiliation(s)
- S Khalid
- Lahore College for Women University, Department of Botany, Jail Road, Lahore, Pakistan
| | - R Siddique
- Lahore College for Women University, Department of Botany, Jail Road, Lahore, Pakistan
| | - S Shaheen
- Lahore College for Women University, Department of Botany, Jail Road, Lahore, Pakistan
| | - M N Shahid
- University of Education, Township, Department of Botany, Division of Science and Technology, Lahore, Pakistan
| | - Z Shamim
- Mirpur University of Science and Technology, Department of Biotechnology, Mirpur, Azad Kashmir, Pakistan
| | - M K A Khan
- University of Okara, Department of Zoology, Okara, Pakistan
| | - Ç Ulubaş Serçe
- Niğde Ömer Halisdemir Üniversitesi, Tarım Bilimleri ve Teknolojileri Fakültesi, Bitkisel Üretim ve Teknolojileri Bölümü, Niğde, Turkey
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Tasqeeruddin S, Asiri YI, Shaheen S. Rapid and Efficient One-Pot Multicomponent Synthesis of Pyrano[3,2-c]chromene Derivatives, Catalyzed by a Deep Eutectic Solvent. Russ J Org Chem 2021. [DOI: 10.1134/s1070428021080121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shah MH, Goldner WS, Benson AB, Bergsland E, Blaszkowsky LS, Brock P, Chan J, Das S, Dickson PV, Fanta P, Giordano T, Halfdanarson TR, Halperin D, He J, Heaney A, Heslin MJ, Kandeel F, Kardan A, Khan SA, Kuvshinoff BW, Lieu C, Miller K, Pillarisetty VG, Reidy D, Salgado SA, Shaheen S, Soares HP, Soulen MC, Strosberg JR, Sussman CR, Trikalinos NA, Uboha NA, Vijayvergia N, Wong T, Lynn B, Hochstetler C. Neuroendocrine and Adrenal Tumors, Version 2.2021, NCCN Clinical Practice Guidelines in Oncology. J Natl Compr Canc Netw 2021; 19:839-868. [PMID: 34340212 DOI: 10.6004/jnccn.2021.0032] [Citation(s) in RCA: 219] [Impact Index Per Article: 73.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) for Neuroendocrine and Adrenal Gland Tumors focus on the diagnosis, treatment, and management of patients with neuroendocrine tumors (NETs), adrenal tumors, pheochromocytomas, paragangliomas, and multiple endocrine neoplasia. NETs are generally subclassified by site of origin, stage, and histologic characteristics. Appropriate diagnosis and treatment of NETs often involves collaboration between specialists in multiple disciplines, using specific biochemical, radiologic, and surgical methods. Specialists include pathologists, endocrinologists, radiologists (including nuclear medicine specialists), and medical, radiation, and surgical oncologists. These guidelines discuss the diagnosis and management of both sporadic and hereditary neuroendocrine and adrenal tumors and are intended to assist with clinical decision-making. This article is focused on the 2021 NCCN Guidelines principles of genetic risk assessment and counseling and recommendations for well-differentiated grade 3 NETs, poorly differentiated neuroendocrine carcinomas, adrenal tumors, pheochromocytomas, and paragangliomas.
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Affiliation(s)
- Manisha H Shah
- The Ohio State University Comprehensive Cancer Center - James Cancer Hospital and Solove Research Institute
| | | | - Al B Benson
- Robert H. Lurie Comprehensive Cancer Center of Northwestern University
| | | | | | - Pamela Brock
- The Ohio State University Comprehensive Cancer Center - James Cancer Hospital and Solove Research Institute
| | | | | | - Paxton V Dickson
- St. Jude Children's Research Hospital/The University of Tennessee Health Science Center
| | | | | | | | | | - Jin He
- The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
| | | | | | | | - Arash Kardan
- Case Comprehensive Cancer Center/University Hospitals Seidman Cancer Center and Cleveland Clinic Taussig Cancer Institute
| | | | | | | | | | | | | | | | | | | | | | | | | | - Nikolaos A Trikalinos
- Siteman Cancer Center at Barnes-Jewish Hospital and Washington University School of Medicine
| | | | | | | | - Beth Lynn
- National Comprehensive Cancer Network
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Abstract
ABSTRACT Peptide receptor radionuclide therapy (PRRT) is a treatment option for somatostatin receptor-positive, unresectable or metastatic neuroendocrine tumors (NETs). Despite high disease control rates seen with PRRT, a subset of the NET population seems to have a short progression-free interval. We hypothesize that patients with NETs with rapid progression post-PRRT may have mixed low- and high-grade cell populations, and PRRT treats the lower-grade component, allowing the more aggressive high-grade component to progress.We report 7 patients with biopsy-proven NET who received PRRT with 177Lu-DOTATATE at the Stanford Cancer Center who had evidence of progressive disease (PD) on or within 6 months of therapy.All patients had primary pancreatic, metastatic, well-differentiated NET on diagnosis and were heavily pretreated before receiving PRRT. Two patients had PD while on PRRT; 5 had PD within 6 months of completing PRRT. The median time from the last cycle to PD was 3.2 months (range, 1.1-4.6 months). The median progression-free survival was 7.7 months (95% confidence interval, 5.7-9.8 months). Three patients had a repeat biopsy post-PRRT, 2 of which demonstrated higher disease grade compared with their initial pathology. Further evaluation in larger patient cohorts is warranted to elucidate predictive factors of PRRT response/nonresponse to enable better patient selection.
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Affiliation(s)
- Hussein A Assi
- From the Section of Hematology/Oncology, Department of Medicine, Boston University School of Medicine, Boston, MA
| | - Kathleen Hornbacker
- Section of Medical Oncology, Department of Medicine, Yale Cancer Center, Yale School of Medicine, New Haven, CT
| | - Shagufta Shaheen
- Section of Medical Oncology, Department of Medicine, Yale Cancer Center, Yale School of Medicine, New Haven, CT
| | - Theresa Wittenberg
- Section of Medical Oncology, Department of Medicine, Yale Cancer Center, Yale School of Medicine, New Haven, CT
| | - Robyn Silberman
- Section of Medical Oncology, Department of Medicine, Yale Cancer Center, Yale School of Medicine, New Haven, CT
| | - Pamela L Kunz
- Section of Medical Oncology, Department of Medicine, Yale Cancer Center, Yale School of Medicine, New Haven, CT
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Shaheen S, Anwar Bég O, Gul F, Maqbool K. Electro-Osmotic Propulsion of Jeffrey Fluid in a Ciliated Channel Under the Effect of Nonlinear Radiation and Heat Source/Sink. J Biomech Eng 2021; 143:1096600. [PMID: 33462593 DOI: 10.1115/1.4049810] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 09/11/2020] [Indexed: 11/08/2022]
Abstract
Mathematical modeling of mechanical system in microfluidics is an emerging area of interest in microscale engineering. Since microfluidic devices use the hair-like structure of artificial cilia for pumping, mixing, and sensing in different fields, electro-osmotic cilia-driven flow helps to generate the fluid velocity for the Newtonian and viscoelastic fluid. Due to the deployment of artificial ciliated walls, the present research reports the combined effect of an electro-osmotic flow and convective heat transfer on Jeffrey viscoelastic electrolytic fluid flow in a two-dimensional ciliated vertical channel. Heat generation/absorption and nonlinear radiation effects are included in the present mathematical model. After applying Debye-Huckel approximation and small Reynolds number approximation to momentum and energy equation, the system of nonlinear partial differential equation is reduced into nonhomogenous boundary value problem. The problem determines the velocity, pressure, and temperature profiles by the application of semi-analytical technique known as homotopy perturbation method (HPM) with the help of software Mathematica. The graphical results of the study suggest that HPM is a reliable methodology for thermo physical electro-osmotic rheological transport in microchannels.
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Affiliation(s)
- S Shaheen
- Department of Mathematics and Statistics, International Islamic University, Islamabad 44000, Pakistan
| | - O Anwar Bég
- Department of Mechanical and Aeronautical Engineering, Salford University, Salford M54WT, UK
| | - F Gul
- Department of Mathematics and Statistics, International Islamic University, Islamabad 44000, Pakistan
| | - K Maqbool
- Department of Mathematics and Statistics, International Islamic University, Islamabad 44000, Pakistan
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Shaheen S, Alyahya KI, El Fouhil AF, Salama EEA, Atteya M, Elshaer F, Darwish H. An extremely rare complete bilateral duplication of Inferior vena cava in a male cadaver: anatomy, embryology and clinical relevance. Folia Morphol (Warsz) 2021; 81:247-253. [PMID: 33634838 DOI: 10.5603/fm.a2021.0016] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 01/08/2021] [Accepted: 01/22/2021] [Indexed: 11/25/2022]
Abstract
The study presented an extremely rare case of real complete bilateral duplication of inferior vena cava (IVC) in a male cadaver which has never been reported before. Both IVC had approximately the same diameter. The right IVC drained into the right atrium; the left IVC continued as hemiazygos vein and drained into the superior vena cava. Three anastomotic venous channels, a cranial preaortic, a middle and a caudal retroaortic, joined both vessels. Multiple variations in the way of drainage of posterior intercostal veins, on both sides, were also present. The present report invalidates an old classification defining the two vessels when joined at the level of the renal veins as complete bilateral duplication of IVC. Although the presence of combination of venous variations is extremely rare, awareness of such variations is essential for clinical and surgical procedures to avoid misdiagnosis and surgical complications.
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Affiliation(s)
- S Shaheen
- Clinical Anatomy Lab., Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - K I Alyahya
- Clinical Anatomy Lab., Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - A F El Fouhil
- Clinical Anatomy Lab., Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
| | - E E A Salama
- Clinical Anatomy Lab., Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - M Atteya
- Clinical Anatomy Lab., Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - F Elshaer
- King Khalid University Hospital, King Fahad Cardiac Centre, King Saud University, Riyadh, Saudi Arabia
| | - H Darwish
- Clinical Anatomy Lab., Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia
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Yasmeen R, Shaheen S, Khan B, Bokhari S, Rafi U, Qurashi A. Faecal Matter of Spotted Deer (Axis axis) Acts as Bioindicator of Heavy Metals Contamination in the Air. PAK J ZOOL 2020. [DOI: 10.17582/journal.pjz/20181214041244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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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Abstract
The systemic treatment options for advanced gastric cancer (GC) have evolved rapidly in recent years. We have reviewed the recent data of clinical trial incorporating targeted agents, including inhibitors of angiogenesis, human epidermal growth factor receptor 2 (HER2), mesenchymal-epithelial transition, epidermal growth factor receptor, mammalian target of rapamycin, claudin-18.2, programmed death-1 and DNA. Addition of trastuzumab to platinum-based chemotherapy has become standard of care as front-line therapy in advanced GC overexpressing HER2. In the second-line setting, ramucirumab with paclitaxel significantly improves overall survival compared to paclitaxel alone. For patients with refractory disease, apatinib, nivolumab, ramucirumab and TAS-102 have demonstrated single-agent activity with improved overall survival compared to placebo alone. Pembrolizumab has demonstrated more than 50% response rate in microsatellite instability-high tumors, 15% response rate in tumors expressing programmed death ligand 1, and non-inferior outcome in first-line treatment compared to chemotherapy. This review summarizes the current state and progress of research on targeted therapy for advanced GC.
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Affiliation(s)
- Julie H. Selim
- School of Pharmacy, Loma Linda University, Loma Linda, CA 92350 USA
| | - Shagufta Shaheen
- Division of Oncology, Stanford Cancer Center, Stanford, CA 94304 USA
| | - Wei-Chun Sheu
- Department of Internal Medicine, Richmond University Medical Center, Staten Island, NY 10310 USA
| | - Chung-Tsen Hsueh
- Division of Medical Oncology and Hematology, Department of Medicine, Loma Linda University, 11175 Campus Street, CSP 11015, Loma Linda, CA 92354 USA
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Abstract
BRAF and KRAS are two key oncogenes in the RAS/RAF/MEK/MAP-kinase signaling pathway. While previously considered mutually exclusive, concomitant mutations in both KRAS and BRAF genes have been identified in colorectal cancer (CRC). The clinical outcome of these patients remains undetermined. We present the clinical course of two patients with CRC harboring mutations at codon 12 of KRAS and BRAF non-V600E mutations. More research is needed to determine the clinical-pathological effect of these simultaneous mutations of KRAS and BRAF in CRC on disease course and treatment outcome.
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Affiliation(s)
- Lauren Midthun
- Department of Internal Medicine, Loma Linda University, Loma Linda, California, USA
| | - Shagufta Shaheen
- Division of Oncology, Stanford Medical Center, Stanford, California, USA
| | - Jeremy Deisch
- Department of Pathology and Human Anatomy, Loma Linda University, Loma Linda, California, USA
| | - Maheswari Senthil
- Department of Surgery, Loma Linda University, Loma Linda, California, USA
| | - James Tsai
- Division of Medical Oncology and Hematology, Department of Internal Medicine, Loma Linda University, Loma Linda, California, USA
| | - Chung-Tsen Hsueh
- Division of Medical Oncology and Hematology, Department of Internal Medicine, Loma Linda University, Loma Linda, California, USA
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Maqbool K, Shaheen S, Siddiqui AM. Effect of nano-particles on MHD flow of tangent hyperbolic fluid in a ciliated tube: an application to fallopian tube. Math Biosci Eng 2019; 16:2927-2941. [PMID: 31137243 DOI: 10.3934/mbe.2019144] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 06/09/2023]
Abstract
This study shows the effects of magnetic field and copper nanoparticles on the flow of tangent hyperbolic fluid (blood) through a ciliated tube (fallopian tube). The present study will be very helpful for those patients who are facing blood clotting in fallopian tube that may cause for infertility or cancer. The nanoparticles and magnetic field are very helpful to break the clots in blood flowing in fallopian tube. Since blood flows in fallopian tube due to ciliary movement, therefore medicines containing copper nanoparticles and magnetic field with radiation therapy help to improve the patient. Ciliary movement has a particular pattern of motion i.e., metachronal wavy motion which helps to fluid flow. For the forced convective MHD flow of tangent hyperbolic nano-fluid, momentum and energy equations are solved by the small Reynolds' number approximation and Adomian decomposition method by constructing the recursive relation of ADM and solved by software "MATHEMATICA". The effects of parameters such as nanoparticle volume fraction, Hartmann number, entropy generation and Bejan's number have been discussed through graphs plotted in software "MATHEMATICA". It is found that blood flow is accelerated and heat transfer enhancement is maximum in the presence of nano particles, also magnetic effects accelerates the blood flow and help to enhance the heat transfer whereas the presence of porous medium increases the fluid's velocity and reduce the transfer of heat through fluid flow.
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Affiliation(s)
- K Maqbool
- Department of Mathematics & Statistics, International Islamic University, Islamabad 44000, Pakistan
| | - S Shaheen
- Department of Mathematics & Statistics, International Islamic University, Islamabad 44000, Pakistan
| | - A M Siddiqui
- Department of Mathematics, York Campus, Pennsylvania State University, York, Pennsylvania 17403, U. S. A
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20
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Manzoor N, Bég OA, Maqbool K, Shaheen S. Mathematical modelling of ciliary propulsion of an electrically-conducting Johnson-Segalman physiological fluid in a channel with slip. Comput Methods Biomech Biomed Engin 2019; 22:685-695. [PMID: 30829056 DOI: 10.1080/10255842.2019.1582033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 10/27/2022]
Abstract
Bionic systems frequently feature electromagnetic pumping and offer significant advantages over conventional designs via intelligent bio-inspired properties. Complex wall features observed in nature also provide efficient mechanisms which can be utilized in biomimetic designs. The characteristics of biological fluids are frequently non-Newtonian in nature. In many natural systems super-hydrophobic slip is witnessed. Motivated by these phenomena, in this paper, we discussed a mathematical model for the cilia-generated propulsion of an electrically-conducting viscoelastic physiological fluid in a ciliated channel under the action of magnetic field. The rheological behavior of the fluid is simulated with the Johnson-Segalman constitutive model which allows internal wall slip. The regular or coordinated movement of the ciliated edges (which line the internal walls of the channel) is represented by a metachronal wave motion in the horizontal direction which generates a two-dimensional velocity profile. This mechanism is imposed by a periodic boundary condition which generates propulsion in the channel flow. Under the classical lubrication approximation, the boundary value problem is non-dimensionalized and solved analytically with a perturbation technique. The influence of the geometric, rheological (slip and Weissenberg number) and magnetic parameters on velocity, pressure gradient and the pressure rise (evaluated via the stream function in symbolic software) are presented graphically and interpreted at length.
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Affiliation(s)
- N Manzoor
- a Department of Mathematics & Statistics , International Islamic University , Islamabad , Pakistan
| | - O Anwar Bég
- b Fluid Mechanics, Aeronautical/Mechanical Engineering , University of Salford , Manchester , UK
| | - K Maqbool
- a Department of Mathematics & Statistics , International Islamic University , Islamabad , Pakistan
| | - S Shaheen
- a Department of Mathematics & Statistics , International Islamic University , Islamabad , Pakistan
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Khan K, Alam M, Srivastava A, Shaheen S, Ahmad N. Measurement of stature from somatometry of the facial height in males. J ANAT SOC INDIA 2018. [DOI: 10.1016/j.jasi.2018.07.001] [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: 10/28/2022]
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22
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Shaheen S, Ji L, Mirshahidi H, Otoukesh S, Nagaraj G, Mirshahidi S, Morgan JW. EGFR reporting in stage IV adenocarcinoma of the lung: Demographic predictors of EGFR testing and survival. J Clin Oncol 2018. [DOI: 10.1200/jco.2018.36.15_suppl.9100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | - Liang Ji
- Loma Linda School of Public Health, Loma Linda, CA
| | | | | | | | | | - John W Morgan
- Loma Linda University School of Public Health and SEER Cancer Registry of Greater California, Loma Linda, CA
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Shaheen S, Mirshahidi H, Nagaraj G, Hsueh CT. Conservative management of nivolumab-induced pericardial effusion: a case report and review of literature. Exp Hematol Oncol 2018; 7:11. [PMID: 29761026 PMCID: PMC5941729 DOI: 10.1186/s40164-018-0104-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [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: 03/16/2018] [Accepted: 05/02/2018] [Indexed: 12/11/2022] Open
Abstract
Background Nivolumab is an immune checkpoint inhibitor targeting programmed death-1 protein and has been approved for the treatment of multiple advanced malignancies. Adverse effects of immune checkpoint inhibitors are distinct from conventional cytotoxic chemotherapy and can be life-threatening if left unrecognized. Here, we present a case of nivolumab-induced pericardial effusion successfully managed with high-dose corticosteroids. Case presentation A 70-year-old Caucasian female with a history of 50-pack-year cigarette smoking was diagnosed of recurrent adenocarcinoma of lung after initial surgery. She progressed through multiple lines of chemotherapy and was eventually started on nivolumab. She developed a large pericardial effusion, grade 3 by Common Terminology Criteria for Adverse Events v4.0, about 4 days after receiving first nivolumab treatment. She was treated with oral prednisone at 1 mg/kg daily with gradual resolution of pericardial effusion over 5 weeks while she still received nivolumab every 2 weeks. Prednisone treatment was eventually tapered off about 10 weeks from initial nivolumab treatment. However 1 week after stopping prednisone, she again presented with shortness of breath and bilateral ankle edema, imaging confirmed recurrent pericardial effusion measuring 2.8 cm. Nivolumab was stopped and patient was again started back on prednisone 1 mg/kg daily which resulted in complete resolution of pericardial effusion in 3 weeks. Nivolumab was resumed 1 week afterwards while patient was on tapering dose of prednisone. There was no recurrent pericardial effusion when she continued low-dose prednisone during the remaining course of nivolumab treatment. Conclusions With increasing use of immune checkpoint inhibitors, clinicians need to be aware of the unusual immune-related adverse events in order to provide timely management and effective patient care. To our knowledge, this is the first reported case of immune-related pericardial effusion from nivolumab successfully managed with high-dose corticosteroids. Furthermore, recurrent pericardial effusion was prevented by using low-dose corticosteroids as maintenance in order for patient to continue nivolumab treatment.
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Affiliation(s)
- Shagufta Shaheen
- Division of Hematology and Oncology, Department of Medicine, Loma Linda University, 11175 Campus Street, CSP 11015, Loma Linda, CA 92354 USA
| | - Hamid Mirshahidi
- Division of Hematology and Oncology, Department of Medicine, Loma Linda University, 11175 Campus Street, CSP 11015, Loma Linda, CA 92354 USA
| | - Gayathri Nagaraj
- Division of Hematology and Oncology, Department of Medicine, Loma Linda University, 11175 Campus Street, CSP 11015, Loma Linda, CA 92354 USA
| | - Chung-Tsen Hsueh
- Division of Hematology and Oncology, Department of Medicine, Loma Linda University, 11175 Campus Street, CSP 11015, Loma Linda, CA 92354 USA
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24
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Zhang H, Chang Z, Mehmood K, Yang MK, Liu Z, Duan Z, Yuan F, Ali MM, Adnan M, Qasim MU, Shaheen S, Abbas RZ, Tian Y, Guo R. Tetramethylpyrazine inhibited hypoxia-induced expression of calcium-sensing receptors in pulmonary artery smooth muscle cells in chickens. J BIOL REG HOMEOS AG 2018; 32:489-495. [PMID: 29921373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Tetramethylpyrazine (TMP) is a biologically active ingredient, which is isolated from a popularChinese medicinal plant. It has been used effectively to treat ischemic heart problems, cerebrovascular and thrombotic vascular diseases. This study was designed to evaluate the effect of TMP on calciumsensing receptors in pulmonary artery smooth muscle in chickens. For this purpose forty day-old chicks were distributed into five groups: the control group, the hypoxia group (kept under low Oxygen treatment), and TMP groups (kept under low Oxygen treatment along with treatment of different concentrations of TMP). The pulmonary artery smooth muscle cells were also cultured on 6-well plates in high glucose culture medium and divided into the same five groups. We used in vivo and in vitro study models by applying immunohistochemistry, RT-qPCR assay and Western blotting analysis. Our results showed that pre-incubation with hypoxia markedly stimulated the activation of calcium-sensing receptor (CaSR) in pulmonary artery smooth muscle cells (PASMCs). The TMP decreased the mRNA and protein levels of CaSR. Treatment with TMP clearly inhibited the activation of all CaSR in a dose-dependent manner. Our data demonstrated that TMP can down-regulate the expression of CaSR. Therefore, these findings provide a new target to treat pulmonary arterial hypertension (PAH) under hypoxic conditions.
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Affiliation(s)
- H Zhang
- Animal Husbandry and Veterinary Institute, Hubei Academy of Agricultural Science, Wuhan, China
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture) Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Z Chang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - K Mehmood
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- University College of Veterinary and Animal Sciences, Islamia University of Bahawalpur, Pakistan
| | - M K Yang
- Animal Husbandry and Veterinary Institute, Hubei Academy of Agricultural Science, Wuhan, China
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture) Wuhan, China
| | - Z Liu
- Animal Husbandry and Veterinary Institute, Hubei Academy of Agricultural Science, Wuhan, China
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture) Wuhan, China
| | - Z Duan
- Animal Husbandry and Veterinary Institute, Hubei Academy of Agricultural Science, Wuhan, China
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture) Wuhan, China
| | - F Yuan
- Animal Husbandry and Veterinary Institute, Hubei Academy of Agricultural Science, Wuhan, China
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture) Wuhan, China
| | - M M Ali
- University of Veterinary and Animal Sciences Lahore, Pakistan
| | - M Adnan
- College of Plant Science, Huazhong Agricultural University, Wuhan, P. R. China
| | - M U Qasim
- College of Plant Science, Huazhong Agricultural University, Wuhan, P. R. China
| | - S Shaheen
- Bahauddin Zakariya University Multan, Pakistan
| | - R Z Abbas
- Department of Parasitology, University of Agriculture Faisalabad, Pakistan
| | - Y Tian
- Animal Husbandry and Veterinary Institute, Hubei Academy of Agricultural Science, Wuhan, China
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture) Wuhan, China
| | - R Guo
- Animal Husbandry and Veterinary Institute, Hubei Academy of Agricultural Science, Wuhan, China
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture) Wuhan, China
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Shaheen S, Ji L, Morgan J, Otoukesh S, Mirshahidi H. 166P Evidence-based conclusions and indinations of pemetrexed, taxane and bevacizumab in advanced lung cancer. J Thorac Oncol 2018. [DOI: 10.1016/s1556-0864(18)30440-4] [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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Shaheen S, Jabo B, Kaur M, Mirshahidi S, Mirshahidi H. PS01.03 Reduced Length of Stay and Financial Burden, but Comparable Outcomes : VATS VS Open Thoracotomy in Resectable Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.034] [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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Shaheen S, Jabo B, Kaur M, Senthil M, Mirshahidi S, Zaheer S, Mirshahidi H. P1.16-006 Less Is More: video Assisted Thoracic Surgery (VATS) vs Open Thoracotomy in the Management of Resectable Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1060] [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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28
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Khan AZ, Amad I, Shaheen S, Hussain K, Hafeez F, Farooq M, Noor Ul Ayan H. Genetic barcoding and phylogenetic analysis of dusky cotton bug (Oxycarenus hyalinipennis) using mitochondrial cytochrome c oxidase I gene. ACTA ACUST UNITED AC 2017; 63:59-63. [PMID: 29096756 DOI: 10.14715/cmb/2017.63.10.9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 05/02/2017] [Revised: 09/14/2017] [Accepted: 10/02/2017] [Indexed: 11/18/2022]
Abstract
Cotton dusky bug (Oxycarenus spp.) mostly attack on cash crops such as Gossypium, Cola and Hibiscus which affect the national economy therefore sustainable pest management is needed. Cytochrome c oxidase I (COI) gene is utilized as marker gene for DNA barcoding, genetic and ecological study of insects. In present study insect (cotton dusky bug) samples were collected from cotton fields in Faisalabad. COI gene was amplified from genomic DNA of bug and cloned into pTZ57R/T vector (Fermentas). The clone was sent to Macrogen (South Korea) for Sanger sequencing. The phylogenetic analysis and pairwise multiple sequence alignment showed that our cotton dusky bug grouped with two species of Oxycarenus genus and highest sequence identity was 91.1% with Oxycarenus hylinipennis. This is the first report of genetic barcode of Oxycarenus hylinipennis from cotton from Pakistan.
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Affiliation(s)
- A Z Khan
- Plant Research Group, Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Pakistan
| | - I Amad
- Plant Research Group, Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Pakistan
| | - S Shaheen
- Entomology Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan
| | - K Hussain
- Plant Research Group, Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Pakistan
| | - F Hafeez
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - M Farooq
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - H Noor Ul Ayan
- Plant Research Group, Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Pakistan
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Shaheen S, Jabo B, Kaur M, Senthil M, Mirshahidi S, Zaheer S, Mirshahidi HR. Outcomes of video assisted thoracic surgery compared with open thoracotomy in patients with early stage lung cancer. J Clin Oncol 2017. [DOI: 10.1200/jco.2017.35.15_suppl.e20061] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e20061 Background: Video Assisted Thoracic Surgery (VATS) has become the recommended approach for treatment of early stage lung cancer; however, no large randomized clinical trial has been conducted to formally compare VATS to open thoracotomy (OT). The current study sought to assess differences in patients and tumor characteristics for VATS and OT. Additionally, treatment outcomes that included margin status, postoperative length of stay (LOS) and overall survival (OS) were also compared. Methods: A single institution retrospective charts review was conducted for patients diagnosed with stage I-III lung cancer and treated with VATS or OT from May 2005 - May 2015. Patients and tumor characteristics included age at diagnosis, sex, tobacco use, tumor location, stage, size and receipt of chemotherapy or radiotherapy. Chis-square and Wilcoxon-Mann-Whitney tests were used to compare demographic, tumor characteristics and LOS. Multiple logistic and Cox regressions were used to compute relative risk (RR) for positive margins and mortality hazards ratio along with 95 percent confidence interval limits (95%CI), respectively. Results: A total of 232 patients underwent lung resection for cancer diagnosis; VATS n = 99 and OT n = 133. Age at diagnosis, sex, tobacco use, tumor location, and size were not significantly different between the two groups. VATS was more frequently performed for stage I lung cancer compared to OT, p = 0.043. The risk of positive margin RR = 0.49 (95%CI = 0.15, 1.60) and mortality HR = 1.49 (95%CI = 0.90, 2.46) were similar between the two groups. However, the median LOS was significantly shorter (4 days) for VATS than OT (6 days), p = 0.001. Conclusions: Our results show that both short and long-term oncologic outcomes are comparable between VATS and OT. VATS results in shorter LOS and should be considered as the approach of choice for patients undergoing lung resection for cancer. [Table: see text]
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Affiliation(s)
| | - Brice Jabo
- Loma Linda University School of Public Health, Loma Linda, CA
| | - Manmeet Kaur
- Loma Linda University Medical Center, Loma Linda, CA
| | | | | | - Salman Zaheer
- Loma Linda University Medical Center, Loma Linda, CA
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Maqbool K, Shaheen S, Mann AB. Exact solution of cilia induced flow of a Jeffrey fluid in an inclined tube. Springerplus 2016; 5:1379. [PMID: 27610298 PMCID: PMC4993733 DOI: 10.1186/s40064-016-3021-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 08/08/2016] [Indexed: 11/17/2022]
Abstract
The present study investigated the cilia induced flow of MHD Jeffrey fluid through an inclined tube. This study is carried out under the assumptions of long wavelength and low Reynolds number approximations. Exact solutions for the velocity profile, pressure rise, pressure gradient, volume flow rate and stream function are obtained. Effects of pertinent physical parameters on the computational results are presented graphically.
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Affiliation(s)
- K. Maqbool
- Department of Mathematics and Statistics, International Islamic University, Islamabad, 44000 Pakistan
| | - S. Shaheen
- Department of Mathematics and Statistics, International Islamic University, Islamabad, 44000 Pakistan
| | - A. B. Mann
- Department of Mathematical Sciences, Federal Urdu University of Arts, Science and Technology, Near Zero Point, G-7/1, Islamabad, 44000 Pakistan
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Stella S, Li H, Stathogiannis K, Stojkovic S, Ondrus T, Plaza Lopez D, Jinno S, Verseckaite R, Oliveira Da Silva C, Altin C, Krestjyaninov MV, Izci S, Santos M, Urbano-Moral JA, Spartera M, Gonzalvez-Garcia A, Miskowiec D, Hagrass MUHAMMAD, Rady M, Reskovic Luksic V, Castaldi B, Silva T, Silva T, Silva T, Kolossvary M, Basuoni A, Miskowiec D, Peovska Mitevska I, Aguiar Rosa S, Rosa I, Marini C, Ancona F, Spagnolo P, Latib A, Romano V, Colombo A, Margonato A, Agricola E, Yuan L, Xie MX, Jin XY, Toutouzas K, Drakopoulou M, Latsios G, Synetos A, Sanidas E, Kaitozis O, Trantalis G, Gerckens U, Tousoulis D, Tesic M, Stojkovic S, Stepanovic J, Trifunovic D, Beleslin B, Giga V, Nedeljkovic I, Djordjevic Dikic A, Bartunek J, Vanderheyden M, Stockman B, Mirica C, Kotrc M, Van Praet F, Van Camp G, Penicka M, Igual Munoz B, Sanchez Lacuesta ME, Lopez Vilella R, Domenech Tort MD, Sepulveda Sanchis P, Ten Morro F, Calvillo Batlles P, Montero Argudo JA, Martinez Dolz LV, Yamada A, Sugimoto K, Ito S, Kato M, Inuzuka H, Sugiyama H, Takada K, Ozaki Y, Ishii J, Mizariene V, Gaileviciute K, Bieseviciene M, Jonkaitiene R, Jurkevicius R, Gunyeli E, Winter R, Back M, Settergren M, Manouras A, Shahgaldi K, Ozsoy HM, Gezmis E, Yilmaz M, Tunc E, Sade LE, Muderrisoglu H, Gimaev RH, Melnikova MA, Olezov NV, Ruzov VI, Dogan C, Acar R, Cetin G, Bakal RB, Unkun T, Cap M, Erdogan E, Kaymaz C, Ozdemir N, Leite L, Martins R, Baptista R, Barbosa A, Ribeiro N, Oliveira A, Castro G, Pego M, Gutierrez-Garcia-Moreno L, Rodriguez-Palomares JF, Galuppo V, Maldonado-Herrera G, Teixido-Tura G, Gruosso D, Gonzalez-Alujas T, Evangelista-Massip A, Stella S, Rosa I, Ancona F, Marini C, Latib A, Giannini F, Colombo A, Margonato A, Agricola E, Urbano-Moral JA, Matabuena-Gomez-Limon J, Grande-Trillo A, Rojas-Bermudez C, Rodriguez-Puras MJ, Martinez-Martinez A, Lopez-Pardo F, Lopez-Haldon JE, Kupczynska K, Kasprzak JD, Lipiec P, Abdelrahman Sharaf El Dein AHMED, Shawky El Serafy AHMED, Rajan RAJESH, Sveric K, Kvakan H, Strasser RH, Cekovic S, Veceric S, Separovic Hanzevacki J, Romanato S, Callegari A, Bernardinello V, Reffo E, Milanesi O, Agapito A, Sousa L, Oliveira JA, Branco LM, Timoteo AT, Galrinho A, Thomas B, Tavares NJ, Cruz Ferreira R, Agapito A, Sousa L, Oliveira JA, Branco LM, Timoteo AT, Galrinho A, Thomas B, Tavares NJ, Cruz Ferreira R, Agapito A, Sousa L, Oliveira JA, Soares R, Aguiar Rosa SA, Morais L, Thomas B, Tavares NJ, Cruz Ferreira R, Szilveszter B, Elzomor H, Karolyi M, Raaijmakers R, Benke K, Celeng C, Bagyura Z, Merkely B, Maurovich-Horvat P, Shaheen S, Abdelkader M, Rasheed T, Kasprzak JD, Lipiec P, Srbinovska E, Pop Gorceva D, Zdravkovska M, Galrinho A, Moura Branco L, Timoteo AT, Agapito A, Sousa L, Oliveira JA, Rodrigues I, Viveiros Monteiro A, Cruz Ferreira R. HIT Poster session 3Transcatheter procedures (TAVI/MitralClip)P937Comparison between 3d transesophageal echocardiography and multislice computed tomography for the aortic annulus sizing in tavi patients: implication for prosthesis sizingP938Left ventricular remodelling in chronic mitral regurgitation: from geometry to mechanics by speckle tracing imageP939Direct TAVI of a self-expanding bioprosthesis: long-term clinical outcomes.P940Prognostic value of coronary flow reserve in the culprit artery following previous myocardial infarctionP941Both MitraClip and heartport surgery prevent progressive left ventricular remodeling in very severe systolic heart failureP942Predictors for the development of microvascular obstruction in patients with acute myocardial infarction treated with primary percutaneous coronary intervention.P943Usefulness of exercise stress echocardiography in asymptomatic or mildly symptomatic patients with chronic degenerative mitral regurgitationP944Left ventricular myocardial deformation changes after aortic valve repair and replacement for aortic regurgitationP945Transcatheter aortic valve implantation: a view of the right side.P946Assessment of epicardial fat thickness and carotid intima media thickness in preeclemsiaP947Gender differences in the remodelling of left and right chambers of the heart in patients with uncontrolled hypertensionP948The five-year course of the left ventricular conventional and advanced echocardiographic parameters in patients with anterior and inferior myocardial infarction revascularized by percutaneouslyP949Aortic regurgitation and 2D derived-speckle tracking left ventricle global longitudinal strain: a connection with symptoms beyond ejection fractionP950Hypertrophic cardiomyopathy: structural abnormalities beyond hypertrophy from a prospective echocardiographic evaluationP952Echocardiographic findings of thrombosis vs endocarditis in tavi patients: a single centre experienceP953Prospective examination of the prevalence and significance of causal mechanisms of low gradient aortic valve stenosisP954Echocardiographic assessment of regional left atrial longitudinal strain by tissue Doppler and speckle tracking method - a comparison studyP955Pattern of atherosclerosis in extracranial and intracranial vessles in non diabetic, non stroke patient with atherosclerotic CADP9563D volume time curves of the left ventricle and exercise capacity testing in patients with dilated cardiomyopathy- old parameters revisedP957Left ventricular longitudinal function in hypertensive patients with septal bulgeP958Integrated imaging to evaluate cardiac performance in Fontan patientsP959The value of right ventricular global longitudinal strain in the evaluation of adult patients with repaired tetralogy of FallotP960Accurate transthoracic echocardiography parameters for the evaluation of adult patients with repaired tetralogy of Fallot: validation with cardiac magnetic resonance imagingP961Cardiac magnetic resonance imaging and cardiopulmonary exercise testing in the functional evaluation of adult patients with repaired tetralogy of FallotP962Model based iterative reconstruction techniques cause modest change in calcium scoresP963Assesment of diastolic heart function by using multi detector computed tomography ( MDCT) in comparison with tissue dopplerP964Bicuspid aortic valve morphology and its impact on aortic diameter - a meta-analysisP965Prognostic value of moderate and severe myocardial ischemia in patients with suspected coronary artery disease and normal coronary angiogramsP966Predictors of aortic dilation in patients with bicuspid aortic valve. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev274] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Ashfaq M, Najam T, Shah SSA, Ahmad MM, Shaheen S, Tabassum R, Rivera G. DNA binding mode of transition metal complexes, a relationship to tumor cell toxicity. Curr Med Chem 2015; 21:3081-94. [PMID: 24934346 DOI: 10.2174/0929867321666140601201803] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 04/01/2014] [Accepted: 05/26/2014] [Indexed: 11/22/2022]
Abstract
Transition metal-based compounds constitute a distinct class of chemotherapeutics extensively used in the clinic as antitumor and antiviral agents. However, drug resistance and side effects of established antitumor metallodrugs such as cisplatin [cis-diamminedichloroplatinum(II)] and its analogues, carboplatin and oxaliplatin, have limited their clinical utility. These limitations have prompted a search for more effective and less toxic metal-based antitumor agents. The unique properties of metal ions, such as redox transfer/electron shuttling, and versatile coordination geometries arising from various oxidation states, result in metal ions and complexes that have potential medicinal applications that could be complementary to organic compounds and which are widely sought in drug discovery efforts. This review summarizes the results that show that transition metal complexes exhibit antitumor effects that differ from cisplatin or its analogues.
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Affiliation(s)
| | | | | | | | | | | | - G Rivera
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, Pakistan.
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Allinson J, Hardy R, Donaldson G, Shaheen S, Kuh D, Wedzicha J. P13 The Overlapping Prevalence Of Chronic Mucus Hypersecretion (cmh) And Chronic Cough (cc). Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.163] [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: 11/04/2022]
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Abstract
This article presents an overview of mycetoma and offers guidelines for orthopaedic surgeons who may be involved in the care of patients with this condition.
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Affiliation(s)
- A H Fahal
- University of Khartoum, The Mycetoma Research Centre and Soba University Hospital, Faculty of Medicine, Department of Surgery, Khartoum, Sudan
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Guddati AK, Shaheen S. Characterization of disease progression in ovarian cancer by utilizing 'chemograms' of ovarian cancer stem cells. J Chemother 2013; 25:184-91. [PMID: 23783145 DOI: 10.1179/1973947812y.0000000058] [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] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
INTRODUCTION Ovarian cancer is one of the leading causes of death in women with cancer. First-line chemotherapy with platinum compounds and taxane compounds has been effective, but most patients develop a relapse of the disease due to drug resistance. There is growing evidence that this resistance may be due to the presence of ovarian cancer stem cells. DISCUSSION Cells with properties of cancer stem cells have been isolated from the ascitic fluid of ovarian cancer patients. This subset of cells is highly tumourigenic compared to the rest of the cells in the ascitic fluid. They are known to exude harmful chemicals from their cytoplasm and have been found to be resistant to chemotherapeutic agents. This property has been utilized to purify them by fluorescence assisted cytometry to yield a subset of cells which are called 'side population'. These cells exhibit the properties of cancer stem cells and their role in disease progression is being currently investigated. The course of the disease can be potentially characterized at the cellular level by closely studying this cell population. They can also be cultured in different combinations of chemotherapeutic agents at varying concentrations to obtain 'chemograms' which are sensitivity charts. Chemotherapeutic agents which produce the most effective kill curves can then be rationally used as a second-line chemotherapy if the disease relapses. These sensitivity charts can provide insight into emerging patterns of chemoresistance and also help discover surface markers that accurately identify ovarian cancer stem cells. CONCLUSION The high rate of disease relapse in patients with ovarian cancer requires a new and different approach utilizing the sensitivity of cancer stem cells. Isolating and characterizing the resistance patterns of ovarian cancer stem cells may provide a rational approach towards an effective and individualized chemotherapeutic regimen.
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Affiliation(s)
- Achuta K Guddati
- Department of Internal Medicine, Massachusetts General Hospital, Harvard Medical School, Harvard University, Boston, MA, USA.
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Pervaiz S, Shaheen T, Shaheen S, Dar N, Samra Z. Purification, characterization and preparation immunomatrixes of S-layer proteins of Thermobifida fusca. J Appl Microbiol 2013; 115:735-43. [DOI: 10.1111/jam.12259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Revised: 05/14/2013] [Accepted: 05/18/2013] [Indexed: 11/27/2022]
Affiliation(s)
- S. Pervaiz
- Institute of Biochemistry and Biotechnology; University of the Punjab; Lahore Pakistan
| | - T. Shaheen
- Institute of Biochemistry and Biotechnology; University of the Punjab; Lahore Pakistan
| | - S. Shaheen
- Institute of Biochemistry and Biotechnology; University of the Punjab; Lahore Pakistan
| | - N. Dar
- Department of Biology; Jinnah Degree College for Women; Lahore Pakistan
| | - Z.Q. Samra
- Institute of Biochemistry and Biotechnology; University of the Punjab; Lahore Pakistan
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Touqir Z, Shaheen S, Upadhyay S, Marak CP, Kumar G, Guddati AK. Outcomes of severe sepsis in very elderly (age >80 years) patients with metastatic cancer. J Clin Oncol 2013. [DOI: 10.1200/jco.2013.31.15_suppl.9558] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
9558 Background: With better treatment and prolonged life expectancy of cancer patients, more elderly patients with metastatic cancer are being treated aggressively for sepsis. There has been philosophical debate about how aggressive the treatment should be for very elderly patients with metastatic disease admitted to intensive care unit with severe sepsis. The data with regards to the outcome of severe sepsis in those above 80 years with metastatic disease is very limited. Methods: Using the Healthcare Cost and Utilization Project - Nationwide Inpatient Sample 2007-2008, patients older than 80 years, discharged with severe sepsis were identified using ICD-9-CM codes. Those with metastatic disease were identified using ICD-9-CM codes 196-199. The outcomes studied were mortality and discharge disposition. We also examined the rates of invasive mechanical ventilation, blood transfusion, use of central venous catheter, tracheostomy and dialysis. The outcomes were compared to those who did not have cancer. Chi square test was used to compare the variables. Significance was defined as p value <0.05. Results: There were 458,443 discharges with severe sepsis in patients aged ≥80 years. Of these 3.3% had metastatic disease. The in-hospital mortality was significantly higher in those with metastatic disease (43.7% vs. 33.3%, p<0.001). The discharge disposition of the very elderly is shown in the Table. The rates of invasive mechanical ventilation, tracheostomy, use of central venous lines and dialysis were similar in both the groups. Blood transfusions were observed to be higher in metastatic group. Conclusions: Resource utilization in elderly with severe sepsis is similar regardless of the presence of metastatic disease. However, the mortality is significantly higher in those with metastatic disease. Of the survivors, only a fraction reaches home with independent functioning. Involvement of palliative care services at an early stage and addressing code status promptly during the beginning of each hospitalization may help relieve resource and financial burden to health care providers. [Table: see text]
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Shaheen S, Upadhyay S, Marak CP, Kumar G, Guddati AK. Outcomes of invasive fungal infections in hematopoietic stem cell transplant patients. J Clin Oncol 2013. [DOI: 10.1200/jco.2013.31.15_suppl.e18008] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e18008 Background: Invasive fungal infections are associated with higher mortality in hematopoietic stem cell transplant (HSCT) recipients despite the use of broad spectrum antifungal agents. With the increase in the number of patients undergoing HSCT and a newer array of immunosuppressants, it is necessary to examine the incidence and outcomes of fungal infection in this population. Methods: We used Nationwide Inpatient Sample from years 2000 to 2008 to examine the trends and outcomes of fungal infections in patients admitted for HSCT. We used ICD-9-CM codes to identify those with HSCT. Similarly we identified invasive fungal infection using ICD-9-CM codes. The engraftment period and subsequent admissions were examined separately. Outcomes studied were in-hospital mortality and length of hospital stay. Logistic regression analysis was used to identify independent association of fungal infection with mortality. The model was adjusted for demographic and hospital characteristics, Charlson's co-morbidity index and severity of sepsis using number of organ failures. Results: There were 291,182 admissions with HSCT from 2000 to 2008. Of these, 3.4% patients had invasive fungal infections. They were more frequent in allogenic transplant during the engraftment period (4.2%) and in those with graft versus host disease (GVHD) in subsequent admission (7.1%). The unadjusted in-hospital mortality was significantly higher in those with invasive fungal infection (28% vs. 7%, p<0.001). On adjusted analysis, the odds of mortality were highest for those with mucor (OR 4.3;95%CI 2.5-7.5) and aspergillus (OR 3.7; 95%CI 3.1-4.5) infections while the results did not reach significance for candidemia. The length of hospital stay was significantly longer in those with invasive fungal infections (median 19 days vs. 7 days, p<0.001). Conclusions: Fungal infections are common in HSCT recipients - especially in those with allografts and with GVHD. Mortality is high and is mostly associated with aspergillus and mucor. A higher index of suspicion for fungal infections in HSCT patients, strict isolation precautions and increased surveillance for aspergillus and mucor in HSCT patients may help decrease the length of hospital stay and mortality.
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Abstract
Uterine leiomyosarcoma is a rare malignancy and carries a poorer prognosis when compared to endometrial carcinoma. It has been observed to metastasize to all the major organs. It presents with symptoms of abdominal distension, vaginal bleeding and may pass unnoticed until an advanced stage in patients with leiomyomas. Surgery is a viable option in patients with disease limited to the uterus, but metastasis to the heart may require surgery to prevent acute and catastrophic complications. The case described here involves metastasis to the tricuspid valve, which caused severe tricuspid regurgitation in the setting of acute pulmonary embolism. Surgical resection restored cardiac function and stabilized the patient. This case illustrates a rare site of metastasis of leiomyosarcoma which required immediate intervention and resulted in a favorable outcome.
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Affiliation(s)
- Creticus P Marak
- Division of Pulmonary and Critical Care Medicine, Montefiore Hospital, Albert Einstein College of Medicine, Yeshiva University, New York, N.Y., USA
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Abstract
Primary effusion lymphoma (PEL) is a subset of large B cell lymphomas and has been mostly associated with human immunodeficiency virus infection. Rare cases have been reported in organ transplant recipients and chronic hepatitis C patients. It typically presents as an effusion in the pleural and pericardial spaces but rarely disseminates. However, involvement of the gastrointestinal tract, lymph nodes and bone marrow has been reported. Diagnosis is based on characteristic clinical, histopathological and immunohistochemical features. We present a case with a right atrial mass which tested positive for human herpes virus 8 (HHV-8), CD20, CD30 and lambda light chains and negative for CD138, kappa light chain, PAX5, Epstein-Barr virus, latent membrane protein 1, CD2, CD3, CD8 and CD56. Bilateral pleural effusions and pericardial effusions were noted which tested positive for HHV-8, CD30 and CD45. The patient responded well to the R-EPOCH regimen with complete resolution of the effusions and a significant decrease in the size of the right atrial mass. This case report illustrates the atypical manifestation of PEL as a right atrial mass.
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Affiliation(s)
- Creticus P Marak
- Division of Pulmonary and Critical Care Medicine, Montefiore Hospital, Albert Einstein College of Medicine, Yeshiva University, New York, N.Y., USA
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Abstract
Mucosa-associated lymphoid tissue (MALT)-type lymphomas most commonly occur in the stomach and have been associated with Helicobacter pylori infection. However, MALT-type lymphoma of the colon is a rare entity. It commonly manifests with symptoms of weight loss, low-grade fever, constipation, melena, and hematochezia. Unlike gastric lymphoma, it is difficult to detect MALT-type lymphoma of the colon by imaging. Colonoscopy may reveal lesions whose biopsy most commonly shows abundant B lymphocytes. There is no universal immunohistochemistry profile for MALT-type lymphoma but CD 20 staining is commonly seen. Trisomies and translocations have been described and their presence has been correlated with treatment response. Due to the rarity of colonic MALT-type lymphoma, no standard guidelines are available for its management. It often occurs individually and rarely occurs simultaneously with concurrent colon adenocarcinoma. This case report describes the presentation and clinical course of a secondary MALT-type lymphoma in a patient who underwent colectomy for a prior colon adenocarcinoma.
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Affiliation(s)
- Shagufta Shaheen
- Department of Internal Medicine, Harvard Medical School, Massachusetts General Hospital, Harvard University, 50 Fruit Street, Boston, MA, USA
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Abstract
Gastrointestinal stromal tumors (GISTs) are rare abdominal tumors which arise from the interstitial cells of Cajal in the gastrointestinal tract. Gastric GISTs are the most commonly seen GIST tumors and may grow to a very large size. They are often associated with abdominal pain, anorexia and weight loss. Most of them can be detected by CT. These tumors have been found to harbor mutations in CD117 which causes constitutional activation of the tyrosine kinase signaling pathway and is considered to be pathognomic. Tyrosine kinase inhibitors such as imatinib have revolutionized the treatment of these tumors, which are otherwise resistant to conventional chemotherapy and radiotherapy. Although surgical resection is the mainstay of treatment, tyrosine kinase inhibitors have been useful in prolonging the recurrence-free survival of these patients. Resistance to imatinib has been reported in GISTs with specific mutations. We present a case of gastric GIST which grew to a very large size and was associated with abdominal pain and weight loss. It was successfully resected and the patient was commenced on imatinib therapy.
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Affiliation(s)
| | - Achuta K. Guddati
- Department of Internal Medicine, Massachusetts General Hospital, Harvard Medical School, Harvard University, Boston, Mass., USA
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Shaheen S, Akita H, Souichirou I, Miura N, Harashima H. Abstract P4-04-08: A Potential non-viral vector to transfect dendritic cell and thereby MHC-Class I antigen presentation might be a potential use in carcinoma. Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-p4-04-08] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
To date almost no remarkable potential non-viral vector was developed to transfect promisingly primary dendritic cell like Bone Marrow Derived Dendritic Cell (BMDC) so that it might generate antigen presentation while epitopic-plasmid was delivered. Here we have introduced a potential non-viral vector named Stearyl-KALA MEND (100–130 nm, zeta potential 35–40 mV), which expressed to date the highest transgene expression while firefly luciferase was introduced (sub-cloned), and thereby promising antigen presentation in vitro while OVA plasmid containing MHC Class-I restricted SIINFEKL epitope was introduced and co-cultured with B3Z T-cell hybridoma. On the basis of these results, we used this vector to transfect BMDC and harvested the DC to chase the corresponding EG7-OVA induced tumor ex vivo. Later we further immunized mice directly with STR-KALA MEND containing OVA plasmid and challenged against the tumor (EG7-OVA induced). In this in vivo study we found also a significant antitumor activity. To evaluate the promptness of our vector we further sub-cloned Mart-1 gene, in our sub-cloned plasmid vector and immunized the mice as before. Thereafter inserting B16F10 melanoma cells to the immunized mice we found also a significant antitumor activity after 24 days of inoculation. Thus the vector, STR-KALA MEND might be a future potential use as DNA vaccine in anti-tumor methodology.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr P4-04-08.
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Affiliation(s)
- S Shaheen
- Hokkaido University, Sapporo, Hokkaido, Japan
| | - H Akita
- Hokkaido University, Sapporo, Hokkaido, Japan
| | | | - N Miura
- Hokkaido University, Sapporo, Hokkaido, Japan
| | - H Harashima
- Hokkaido University, Sapporo, Hokkaido, Japan
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Bakolis I, Hooper R, Burney P, Shaheen S. P1-8 Principal components analysis of diet is not good at identifying foods that are causally linked to disease: a simulation study. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976c.3] [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: 11/03/2022]
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Selim AA, Shaheen S, Lockshin N, Khachemoune A. Cutaneous metastasis of uterine adenocarcinoma: a case report and review of the literature. Cutis 2009; 84:33-38. [PMID: 19743722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Cutaneous metastases from cancer are relatively uncommon in clinical practice but when present may herald the diagnosis of internal malignancy. The most common sources of primary cancer are the breasts, lungs, large bowel, oral cavity, kidneys, stomach, ovaries, and malignant melanoma. Despite the high incidence of uterine adenocarcinoma, cutaneous metastases are uncommon. The most common presentation of cutaneous metastases is rapidly developing nodules or tumors. The diagnosis of cutaneous metastatic carcinoma hinges on histopathologic evaluation of the involved skin. We discuss and review the diagnosis and management of cutaneous metastasis of uterine adenocarcinoma.
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Affiliation(s)
- Abdulhafez A Selim
- Biotechnology Center, King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
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Burney P, Potts J, Makowska J, Kowalski M, Phillips J, Gnatiuc L, Shaheen S, Joos G, Van Cauwenberge P, van Zele T, Verbruggen K, van Durme Y, Derudder I, Wohrl S, Godnic-Cvar J, Salameh B, Skadhauge L, Thomsen G, Zuberbier T, Bergmann KC, Heinzerling L, Renz H, Al-Fakhri N, Kosche B, Hildenberg A, Papadopoulos NG, Xepapadaki P, Zannikos K, Gjomarkaj M, Bruno A, Pace E, Bonini S, Bresciani M, Gramiccioni C, Fokkens W, Weersink EJM, Carlsen KH, Bakkeheim E, Loureiro C, Villanueva CM, Sanjuas C, Zock JP, Lundback B, Janson C. A case-control study of the relation between plasma selenium and asthma in European populations: a GAL2EN project. Allergy 2008; 63:865-71. [PMID: 18588552 DOI: 10.1111/j.1398-9995.2008.01716.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [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: 11/29/2022]
Abstract
BACKGROUND There is evidence that selenium levels are relatively low in Europe and may be falling. Low levels of selenium or low activity of some of the enzymes dependent on selenium have been associated with asthma. METHODS The GA(2)LEN network has organized a multicentre case-control study in Europe to assess the relation of plasma selenium to asthma. The network compared 569 cases in 14 European centres with a diagnosis of asthma and reporting asthma symptoms in the last 12 months with 576 controls from the same centres with no diagnosis of asthma and no asthmatic symptoms in the last 12 months. RESULTS All cases and controls were selected from the same population defined by age and place of residence. Mean plasma selenium concentrations among the controls ranged from 116.3 microg/l in Palermo to 67.7 microg/l in Vienna and 56.1 microg/l among the children in Oslo. Random effects meta-analysis of the results from the centres showed no overall association between asthma and plasma selenium [odds ratio (OR)/10 microg/l increase in plasma selenium: 1.04; 95% confidence interval (CI): 0.89-1.21] though there was a significantly protective effect in Lodz (OR: 0.48; 95% CI: 0.29-0.78) and a marginally significant adverse effect in Amsterdam (OR: 1.68; 95% CI: 0.98-2.90) and Ghent (OR: 1.35; 95% CI: 1.03-1.77). CONCLUSION This study does not support a role for selenium in protection against asthma, but effect modification and confounding cannot be ruled out.
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Affiliation(s)
- P Burney
- National Heart Lung Institute, Imperial College, London, UK
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Shaheen S, Potts J, Gnatiuc L, Makowska J, Kowalski ML, Joos G, van Zele T, van Durme Y, De Rudder I, Wöhrl S, Godnic-Cvar J, Skadhauge L, Thomsen G, Zuberbier T, Bergmann KC, Heinzerling L, Gjomarkaj M, Bruno A, Pace E, Bonini S, Fokkens W, Weersink EJM, Loureiro C, Todo-Bom A, Villanueva CM, Sanjuas C, Zock JP, Janson C, Burney P. The relation between paracetamol use and asthma: a GA2LEN European case-control study. Eur Respir J 2008; 32:1231-6. [PMID: 18579547 DOI: 10.1183/09031936.00039208] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Studies from the UK and USA suggest that frequent use of paracetamol (acetaminophen) may increase the risk of asthma, but data across Europe are lacking. As part of a multicentric case-control study organised by the Global Allergy and Asthma European Network (GA(2)LEN), it was examined whether or not frequent paracetamol use is associated with adult asthma across Europe. The network compared 521 cases with a diagnosis of asthma and reporting of asthma symptoms within the last 12 months with 507 controls with no diagnosis of asthma and no asthmatic symptoms within the last 12 months across 12 European centres. All cases and controls were selected from the same population, defined by age (20-45 yrs) and place of residence. In a random effects meta-analysis, weekly use of paracetamol, compared with less frequent use, was strongly positively associated with asthma after controlling for confounders. There was no evidence for heterogeneity across centres. No association was seen between use of other analgesics and asthma. These data add to the increasing and consistent epidemiological evidence implicating frequent paracetamol use in asthma in diverse populations.
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Affiliation(s)
- S Shaheen
- National Heart and Lung Institute, Imperial College London, Emmanuel Kaye Building, Manresa Road, London SW3 6LR, UK.
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48
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Shaheen S, Potts J, Gnatiuc L, Makowska J, Kowalski ML, Joos G, van Zele T, van Durme Y, De Rudder I, Wöhrl S, Godnic-Cvar J, Skadhauge L, Thomsen G, Zuberbier T, Bergmann KC, Heinzerling L, Gjomarkaj M, Bruno A, Pace E, Bonini S, Fokkens W, Weersink EJM, Loureiro C, Todo-Bom A, Villanueva CM, Sanjuas C, Zock JP, Janson C, Burney P. The relation between paracetamol use and asthma: a GA2LEN European case-control study. Eur Respir J 2008. [PMID: 18579547 DOI: 10.1183/09031936.00039208.] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Studies from the UK and USA suggest that frequent use of paracetamol (acetaminophen) may increase the risk of asthma, but data across Europe are lacking. As part of a multicentric case-control study organised by the Global Allergy and Asthma European Network (GA(2)LEN), it was examined whether or not frequent paracetamol use is associated with adult asthma across Europe. The network compared 521 cases with a diagnosis of asthma and reporting of asthma symptoms within the last 12 months with 507 controls with no diagnosis of asthma and no asthmatic symptoms within the last 12 months across 12 European centres. All cases and controls were selected from the same population, defined by age (20-45 yrs) and place of residence. In a random effects meta-analysis, weekly use of paracetamol, compared with less frequent use, was strongly positively associated with asthma after controlling for confounders. There was no evidence for heterogeneity across centres. No association was seen between use of other analgesics and asthma. These data add to the increasing and consistent epidemiological evidence implicating frequent paracetamol use in asthma in diverse populations.
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Affiliation(s)
- S Shaheen
- National Heart and Lung Institute, Imperial College London, Emmanuel Kaye Building, Manresa Road, London SW3 6LR, UK.
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Selim H, Shaheen S, Barakat K, Selim AA. Melanotic neuroectodermal tumor of infancy: review of literature and case report. J Pediatr Surg 2008; 43:E25-9. [PMID: 18558161 DOI: 10.1016/j.jpedsurg.2008.02.068] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [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: 12/29/2007] [Revised: 02/20/2008] [Accepted: 02/22/2008] [Indexed: 10/21/2022]
Abstract
Melanotic neuroectodermal tumor of infancy (MNTI) is an uncommon, fast-growing, pigmented neoplasm of neural crest origin. It primarily affects the maxilla of the infants during the first year of life. Approximately, a few hundred of these tumors have been reported in medical literature. We present a case of a newborn with MNTI involving the anterior maxillary region. The treatment included surgical excision of the lesion with safe margins, using an intraoral approach and removal of associated developing tooth buds. We made no attempt at immediate bone grafting. The patient had no recurrence at 1 year postoperatively. The diagnostic features and management alternatives of MNTI are discussed.
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Affiliation(s)
- Heba Selim
- Department of Oral and Maxillofacial Surgery, Ain Shams University School of Dentistry, Cairo 11381, Egypt
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Nyagol J, De Falco G, Lazzi S, Luzzi A, Cerino G, Shaheen S, Palummo N, Bellan C, Spina D, Leoncini L. HIV-1 Tat mimetic of VEGF correlates with increased microvessels density in AIDS-related diffuse large B-cell and Burkitt lymphomas. J Hematop 2008; 1:3-10. [PMID: 19669199 PMCID: PMC2712328 DOI: 10.1007/s12308-008-0002-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [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: 12/12/2007] [Accepted: 02/19/2008] [Indexed: 01/16/2023] Open
Abstract
Angiogenic switch marks the beginning of tumor’s strategy to acquire independent blood supply. In some subtypes of non-Hodgkin’s lymphomas, higher local vascular endothelial growth factor (VEGF) expression correlates with increased microvessel density. However, this local VEGF expression is higher only in tumors with elevated expression of the receptors of the growth factor, suggesting an autocrine growth-promoting feedback loop. Several studies have indicated that VEGF receptors are also targeted by Tat protein from the HIV-1-infected cells. Given the similarity of the basic region of Tat to the angiogenic factors (basic fibroblast growth factor, VEGF), Tat mimics these proteins and binds to their receptors. We evaluated the role of HIV-1 Tat in regulating the level of VEGF expression and microvessel density in the AIDS-related diffuse large B-cell (DLBCL) and Burkitt lymphomas (BL). By luciferase assay, we showed that VEGF promoter activity was downregulated in vitro in cells transfected with Tat. Reduced VEGF protein expression in primary HIV-1 positive BL and DLBCL, compared to the negative cases, supported the findings of promoter downregulation from the cell lines. Microvascular density assessed by CD34 expression was, however, higher in HIV-1 positive than in HIV-1 negative tumors. These results suggest that Tat has a wider angiogenic role, besides the regulation of VEGF expression. Thus, targeting Tat protein itself and stabilizing transient silencing of VEGF expression or use of monoclonal antibodies against their receptors in the AIDS-associated tumors will open a window for future explorable pathways in the management of angiogenic phenotypes in the AIDS-associated non-Hodgkin’s lymphomas.
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Affiliation(s)
- J. Nyagol
- Department of Human Pathology and Oncology, University of Siena, Via Delle Scotte 6, 53100 Siena, Italy
| | - G. De Falco
- Department of Human Pathology and Oncology, University of Siena, Via Delle Scotte 6, 53100 Siena, Italy
| | - S. Lazzi
- Department of Human Pathology and Oncology, University of Siena, Via Delle Scotte 6, 53100 Siena, Italy
| | - A. Luzzi
- Department of Human Pathology and Oncology, University of Siena, Via Delle Scotte 6, 53100 Siena, Italy
| | - G. Cerino
- Department of Human Pathology and Oncology, University of Siena, Via Delle Scotte 6, 53100 Siena, Italy
| | - S. Shaheen
- Department of Pathology, Aga Khan University Hospital, Nairobi, Kenya
| | - N. Palummo
- Department of Human Pathology and Oncology, University of Siena, Via Delle Scotte 6, 53100 Siena, Italy
| | - C. Bellan
- Department of Human Pathology and Oncology, University of Siena, Via Delle Scotte 6, 53100 Siena, Italy
| | - D. Spina
- Department of Human Pathology and Oncology, University of Siena, Via Delle Scotte 6, 53100 Siena, Italy
| | - L. Leoncini
- Department of Human Pathology and Oncology, University of Siena, Via Delle Scotte 6, 53100 Siena, Italy
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