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Beiner C, Qureshi MM, Zhao J, Hu B, Jimenez RB, Hirsch AE. Assessing Depression and Anxiety Levels in English and Spanish-Speaking Patients throughout a Course of Radiation Therapy. Int J Radiat Oncol Biol Phys 2023; 117:e6. [PMID: 37785809 DOI: 10.1016/j.ijrobp.2023.06.660] [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) An estimated 32.2% and 41.9% of breast cancer patients experience depression and anxiety, respectively. However, distress experienced by patients with breast cancer receiving radiation therapy may vary at different time points and differ in comparison to other patients with breast cancer, potentially due to differences in the understanding of radiotherapy and variability in the severity of side effects. This study sought to describe the changes in levels of depression and anxiety experienced by English and Spanish-speaking patients throughout a course of radiation therapy for breast cancer, along with the impact of different variables on these levels of distress to better understand and quantify potential gaps. MATERIALS/METHODS Eligibility criteria included English and Spanish-speaking females, ages 18 or older, undergoing radiation therapy treatment for breast cancer at two institutions, including a safety-net hospital. Pre- and post-treatment surveys were completed before and after delivery of radiation therapy. Sociodemographic characteristics collected included: race, ethnicity, marital status, education level, longest residency location, housing, and food security. The survey ended with the standardized PHQ-4 questionnaire, which uses a maximum total score of 12 to assess anxiety and depression. Results were analyzed using the Analysis of Covariance procedure. RESULTS A total of 160 participants completed pre- and post-treatment surveys. Half of the participants were non-white (50%), primarily married (42.5%), and had a high school or associate's level education (46.9%). The total baseline distress mean (BDM) was 2.96 (Standard deviation, SD = 3.11), and the final distress mean (FDM) was 2.78 (SD = 3.78). English-speaking patients comprised 82.5% (n = 132) of the sample and had a BDM of 2.91 with an adjusted change mean (ACM) decrease of 0.45. Spanish-speaking patients comprised 17.5% (n = 28) of the sample, with a BDM of 3.21 and an ACM increase of 1.03 (P = 0.002). Housing (P = 0.021) and food insecurity (P = 0.002) also showed increasing distress with increased insecurity at baseline. CONCLUSION Our study shows that Spanish-speaking patients present with higher levels of distress than their English-speaking counterparts and their distress increased throughout treatment as opposed to English speakers. Other factors, such as housing and food insecurity, are also significantly associated with increased distress. As the number of Spanish speakers in the US continues to increase, it will be important to continue assessing potential differences in cancer care. In addition, understanding the distress changes throughout radiation treatment could help inform future interventions that address these disparities.
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Affiliation(s)
- C Beiner
- Boston University Chobanian & Avedisian School of Medicine, Boston, MA
| | - M M Qureshi
- Boston Medical Center, Boston University School of Medicine, Boston, MA
| | - J Zhao
- Boston University Chobanian & Avedisian School of Medicine, Boston, MA
| | - B Hu
- Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - R B Jimenez
- Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - A E Hirsch
- Department of Radiation Oncology, Boston University School of Medicine, Boston, MA
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Anwar T, Qureshi H, Parveen N, Bashir R, Qaisar U, Munazir M, Yasmin S, Basit Z, Mahmood RT, Nayyar BG, Khan S, Khan SA, Qureshi MM, Wali M. Evaluation of bioherbicidal potential of Carica papaya leaves. BRAZ J BIOL 2019; 80:565-573. [PMID: 31644650 DOI: 10.1590/1519-6984.216359] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Accepted: 04/29/2019] [Indexed: 11/22/2022] Open
Abstract
Due to increased number of herbicide resistant weeds, it is needed to explore the allelopathic potential of plants as an alternative. The research was conducted to investigate allelopathic effects of Carica papaya L. leaf powder and aqueous extract on seeds as well as pre-germinated seeds of Avena fatua L., Helianthus annuus L., Rumex dentatus L., Zea mays L. and Triticum aestivum L. on filter paper and soil in Weed Management Program Laboratory, Department of Plant and Environmental Protection at PARC Institute of Advanced Studies in Agriculture, National Agriculture Research Centre, Islamabad, Pakistan. Germination percentage (%), radicle length (cm) and plumule length (cm) were parameters observed for 'Plant leaf powder bioassay' and 'Aqueous extract method'. Most significant growth inhibition was observed in A. fatua seedlings in filter paper method. A. fatua radicle length was reduced by C. papaya aqueous extract (80%) and leaf powder (89%) bioassays. Plumule length was reduced under the influence of aqueous extract (57-73%) and powdered material (59-77%). The inhibitory effects on other test species were in sequence of H. annuus followed by Z. mays and R. dentatus. The aqueous extract showed non-significant effect on wheat seed germination, radicle and plumule growth. It is suggested that C. papaya aqueous extract can be used as source of weed management in wheat crop.
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Affiliation(s)
- T Anwar
- Department of Plant and Environmental Protection, Institute of Advanced Studies in Agriculture, Islamabad, Peshawar, Pakistan
| | - H Qureshi
- Department of Biological Sciences (Botany Program), Gomal University, Khyber, Pakhtunkhwa, Pakistan
| | - N Parveen
- Department of Botany, Government College University, Faisalabad, Punjab, Pakistan
| | - R Bashir
- Department of Botany, Government College University, Faisalabad, Punjab, Pakistan
| | - U Qaisar
- School of Biological Sciences, University of The Punjab, Lahore, Punjab, Pakistan
| | - M Munazir
- Department of Botany, Government College for Women University, Sialkot, Punjab, Pakistan
| | - S Yasmin
- Department of Botany, Government College for Women University, Sialkot, Punjab, Pakistan
| | - Z Basit
- Department of Mathematics and Statistics, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Punjab, Pakistan
| | - R T Mahmood
- Department of Biotechnology, Mirpur University of Science and Technology, Mirpur, Azad Jammu & Kashmir, Pakistan
| | - B G Nayyar
- Department of Botany, University of Sialkot, Sialkot, Punjab, Pakistan
| | | | - S A Khan
- Department of Earth and Environmental Science, Bahria University, Islamabad, Pakistan
| | - M M Qureshi
- Department of Plant Breeding and Genetics, Gomal University, Dera Ismail Khan, Khyber Pakhtunkhwa, Pakistan
| | - M Wali
- Department of Environmental Science, Gomal University, Dera Ismail Khan, Khyber Pakhtunkhwa, Pakistan
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Buch K, Baylosis B, Fujita A, Qureshi MM, Takumi K, Weber PC, Sakai O. Etiology-Specific Mineralization Patterns in Patients with Labyrinthitis Ossificans. AJNR Am J Neuroradiol 2019; 40:551-557. [PMID: 30792250 DOI: 10.3174/ajnr.a5985] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 01/05/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND PURPOSE Our aim was to identify whether specific patterns of ossification in labyrinthitis ossificans are associated with the known risk factors. Labyrinthitis ossificans has been described as sequela of prior temporal bone trauma, prior infection, and other disorders including sickle cell disease. Specific patterns of mineralization in the membranous labyrinth associated with these risk factors has not been previously described. MATERIALS AND METHODS This was a retrospective study evaluating temporal bone CT scans at our institution from November 2005 to May 2018 in patients with labyrinthitis ossificans. Membranous labyrinthine structures evaluated for ossification included the following: basal, middle, and apical cochlear turns; lateral, posterior, and superior semicircular canals; and the vestibule for both ears in all patients. These structures were assigned a severity score, 0-4, based on degree of mineralization. Clinical records were reviewed for potential labyrinthitis ossificans risk factors. Basic descriptive statistics and a mixed model were used to correlate the degree and patterns of ossification with clinical history. RESULTS Forty-four patients (58 ears) with labyrinthitis ossificans were identified and evaluated. The most common risk factors were chronic otomastoiditis (n = 18), temporal bone surgery (n = 9), temporal bone trauma (n = 6), sickle cell disease (n = 5), and meningitis (n = 4). For all etiologies, the semicircular canals were most severely affected, and the vestibule was the least. In patients with prior temporal bone surgery, significantly greater mineralization was seen in the basal turn of the cochlea (P = .027), the vestibule (P = .001), and semicircular canals (P < .001-.008). No significant pattern was identified in patients with meningitis, sickle cell disease, or trauma. CONCLUSIONS Significant patterns of mineralization in labyrinthitis ossificans were observed in patients with prior temporal bone surgery. For all etiologies, the semicircular canals were most severely affected. No significant mineralization pattern was observed in patients with chronic otomastoiditis, meningitis, sickle cell disease, or prior temporal bone trauma.
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Affiliation(s)
- K Buch
- From the Departments of Radiology (K.B., B.B., A.F., M.M.Q., K.T., O.S.)
| | - B Baylosis
- From the Departments of Radiology (K.B., B.B., A.F., M.M.Q., K.T., O.S.)
| | - A Fujita
- From the Departments of Radiology (K.B., B.B., A.F., M.M.Q., K.T., O.S.)
- Department of Radiology (A.F.), Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - M M Qureshi
- From the Departments of Radiology (K.B., B.B., A.F., M.M.Q., K.T., O.S.)
- Radiation Oncology (M.M.Q., P.C.W., O.S.)
| | - K Takumi
- From the Departments of Radiology (K.B., B.B., A.F., M.M.Q., K.T., O.S.)
| | - P C Weber
- Radiation Oncology (M.M.Q., P.C.W., O.S.)
| | - O Sakai
- From the Departments of Radiology (K.B., B.B., A.F., M.M.Q., K.T., O.S.)
- Radiation Oncology (M.M.Q., P.C.W., O.S.)
- Otolaryngology-Head and Neck Surgery (O.S.), Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts
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Kuno H, Garg N, Qureshi MM, Chapman MN, Li B, Meibom SK, Truong MT, Takumi K, Sakai O. CT Texture Analysis of Cervical Lymph Nodes on Contrast-Enhanced [ 18F] FDG-PET/CT Images to Differentiate Nodal Metastases from Reactive Lymphadenopathy in HIV-Positive Patients with Head and Neck Squamous Cell Carcinoma. AJNR Am J Neuroradiol 2019; 40:543-550. [PMID: 30792253 DOI: 10.3174/ajnr.a5974] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 01/05/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND PURPOSE Differentiating nodal metastases from reactive adenopathy in HIV-infected patients with [18F] FDG-PET/CT can be challenging because lymph nodes in HIV-positive patients often show increased [18F] FDG uptake. The purpose of this study was to assess CT textural analysis characteristics of HIV-positive and HIV-negative lymph nodes on [18F] FDG-PET/CT to differentiate nodal metastases from disease-specific nodal reactivity. MATERIALS AND METHODS Nine HIV-positive patients with head and neck squamous cell carcinoma (7 men, 2 women; 29-62 years of age; median age, 48 years) with 22 lymph nodes (≥1 cm) who underwent contrast-enhanced CT with [18F] FDG-PET followed by pathologic evaluation of cervical lymph nodes were retrospectively reviewed. Twenty-six HIV-negative patients with head and neck squamous cell carcinoma with 61 lymph nodes were evaluated as a control group. Each lymph node was manually segmented, and an in-house-developed Matlab-based texture analysis program extracted 41 texture features from each segmented volume. A mixed linear regression model was used to compare the pathologically proved malignant lymph nodes with benign nodes in the 2 enrolled groups. RESULTS Thirteen (59%) lymph nodes in the HIV-positive group and 22 (36%) lymph nodes in the HIV-negative control group were confirmed as positive for metastases. There were 7 histogram features (P = .017-0.032), 3 gray-level co-occurrence features (P = .009-.025), and 9 gray-level run-length features (P < .001-.033) that demonstrated a significant difference in HIV-positive patients with either benign or malignant lymph nodes. CONCLUSIONS CT texture analysis may be useful as a noninvasive method of obtaining additional quantitative information to differentiate nodal metastases from disease-specific nodal reactivity in HIV-positive patients with head and neck squamous cell carcinoma.
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Affiliation(s)
- H Kuno
- From the Departments of Radiology (H.K., N.G., M.M.Q., M.N.C., B.L., S.K.M., M.T.T., K.T., O.S.).,Department of Diagnostic Radiology (H.K.), National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - N Garg
- From the Departments of Radiology (H.K., N.G., M.M.Q., M.N.C., B.L., S.K.M., M.T.T., K.T., O.S.)
| | - M M Qureshi
- From the Departments of Radiology (H.K., N.G., M.M.Q., M.N.C., B.L., S.K.M., M.T.T., K.T., O.S.).,Radiation Oncology (M.M.Q., M.T.T., O.S.)
| | - M N Chapman
- From the Departments of Radiology (H.K., N.G., M.M.Q., M.N.C., B.L., S.K.M., M.T.T., K.T., O.S.)
| | - B Li
- From the Departments of Radiology (H.K., N.G., M.M.Q., M.N.C., B.L., S.K.M., M.T.T., K.T., O.S.)
| | - S K Meibom
- From the Departments of Radiology (H.K., N.G., M.M.Q., M.N.C., B.L., S.K.M., M.T.T., K.T., O.S.)
| | - M T Truong
- From the Departments of Radiology (H.K., N.G., M.M.Q., M.N.C., B.L., S.K.M., M.T.T., K.T., O.S.).,Radiation Oncology (M.M.Q., M.T.T., O.S.)
| | - K Takumi
- From the Departments of Radiology (H.K., N.G., M.M.Q., M.N.C., B.L., S.K.M., M.T.T., K.T., O.S.).,Department of Radiology (K.T.), Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - O Sakai
- From the Departments of Radiology (H.K., N.G., M.M.Q., M.N.C., B.L., S.K.M., M.T.T., K.T., O.S.) .,Radiation Oncology (M.M.Q., M.T.T., O.S.).,Otolaryngology-Head and Neck Surgery (O.S.), Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts
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Kuno H, Qureshi MM, Chapman MN, Li B, Andreu-Arasa VC, Onoue K, Truong MT, Sakai O. CT Texture Analysis Potentially Predicts Local Failure in Head and Neck Squamous Cell Carcinoma Treated with Chemoradiotherapy. AJNR Am J Neuroradiol 2017; 38:2334-2340. [PMID: 29025727 DOI: 10.3174/ajnr.a5407] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 07/16/2017] [Indexed: 01/08/2023]
Abstract
BACKGROUND AND PURPOSE The accurate prediction of prognosis and failure is crucial for optimizing treatment strategies for patients with cancer. The purpose of this study was to assess the performance of pretreatment CT texture analysis for the prediction of treatment failure in primary head and neck squamous cell carcinoma treated with chemoradiotherapy. MATERIALS AND METHODS This retrospective study included 62 patients diagnosed with primary head and neck squamous cell carcinoma who underwent contrast-enhanced CT examinations for staging, followed by chemoradiotherapy. CT texture features of the whole primary tumor were measured using an in-house developed Matlab-based texture analysis program. Histogram, gray-level co-occurrence matrix, gray-level run-length, gray-level gradient matrix, and Laws features were used for texture feature extraction. Receiver operating characteristic analysis was used to identify the optimal threshold of any significant texture parameter. We used multivariate Cox proportional hazards models to examine the association between the CT texture parameter and local failure, adjusting for age, sex, smoking, primary tumor stage, primary tumor volume, and human papillomavirus status. RESULTS Twenty-two patients (35.5%) developed local failure, and the remaining 40 (64.5%) showed local control. Multivariate analysis revealed that 3 histogram features (geometric mean [hazard ratio = 4.68, P = .026], harmonic mean [hazard ratio = 8.61, P = .004], and fourth moment [hazard ratio = 4.56, P = .048]) and 4 gray-level run-length features (short-run emphasis [hazard ratio = 3.75, P = .044], gray-level nonuniformity [hazard ratio = 5.72, P = .004], run-length nonuniformity [hazard ratio = 4.15, P = .043], and short-run low gray-level emphasis [hazard ratio = 5.94, P = .035]) were significant predictors of outcome after adjusting for clinical variables. CONCLUSIONS Independent primary tumor CT texture analysis parameters are associated with local failure in patients with head and neck squamous cell carcinoma treated with chemoradiotherapy.
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Affiliation(s)
- H Kuno
- From the Departments of Radiology (H.K., M.M.Q., M.N.C., B.L., V.C.A.A., K.O., M.T.T., O.S.).,Department of Diagnostic Radiology (H.K.), National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - M M Qureshi
- From the Departments of Radiology (H.K., M.M.Q., M.N.C., B.L., V.C.A.A., K.O., M.T.T., O.S.).,Radiation Oncology (M.M.Q., M.T.T., O.S.)
| | - M N Chapman
- From the Departments of Radiology (H.K., M.M.Q., M.N.C., B.L., V.C.A.A., K.O., M.T.T., O.S.)
| | - B Li
- From the Departments of Radiology (H.K., M.M.Q., M.N.C., B.L., V.C.A.A., K.O., M.T.T., O.S.)
| | - V C Andreu-Arasa
- From the Departments of Radiology (H.K., M.M.Q., M.N.C., B.L., V.C.A.A., K.O., M.T.T., O.S.)
| | - K Onoue
- From the Departments of Radiology (H.K., M.M.Q., M.N.C., B.L., V.C.A.A., K.O., M.T.T., O.S.)
| | - M T Truong
- From the Departments of Radiology (H.K., M.M.Q., M.N.C., B.L., V.C.A.A., K.O., M.T.T., O.S.).,Radiation Oncology (M.M.Q., M.T.T., O.S.)
| | - O Sakai
- From the Departments of Radiology (H.K., M.M.Q., M.N.C., B.L., V.C.A.A., K.O., M.T.T., O.S.) .,Radiation Oncology (M.M.Q., M.T.T., O.S.).,Otolaryngology-Head and Neck Surgery (O.S.), Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts
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Buch K, Li B, Qureshi MM, Kuno H, Anderson SW, Sakai O. Quantitative Assessment of Variation in CT Parameters on Texture Features: Pilot Study Using a Nonanatomic Phantom. AJNR Am J Neuroradiol 2017; 38:981-985. [PMID: 28341714 DOI: 10.3174/ajnr.a5139] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 01/09/2017] [Indexed: 12/23/2022]
Abstract
Our aim was to evaluate changes in texture features based on variations in CT parameters on a phantom. Scans were performed with varying milliampere, kilovolt, section thickness, pitch, and acquisition mode. Forty-two texture features were extracted by using an in-house-developed Matlab program. Two-tailed t tests and false-detection analyses were performed with significant differences in texture features based on detector array configurations (Q values = 0.001-0.006), section thickness (Q values = 0.0002-0.001), and acquisition mode (Q values = 0.003-0.006). Variations in milliampere and kilovolt had no significant effect.
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Affiliation(s)
- K Buch
- From the Departments of Radiology (K.B., B.L., M.M.Q., H.K., S.W.A., O.S.)
| | - B Li
- From the Departments of Radiology (K.B., B.L., M.M.Q., H.K., S.W.A., O.S.)
| | - M M Qureshi
- From the Departments of Radiology (K.B., B.L., M.M.Q., H.K., S.W.A., O.S.).,Radiation Oncology (M.M.Q., O.S.)
| | - H Kuno
- From the Departments of Radiology (K.B., B.L., M.M.Q., H.K., S.W.A., O.S.)
| | - S W Anderson
- From the Departments of Radiology (K.B., B.L., M.M.Q., H.K., S.W.A., O.S.)
| | - O Sakai
- From the Departments of Radiology (K.B., B.L., M.M.Q., H.K., S.W.A., O.S.) .,Radiation Oncology (M.M.Q., O.S.).,Otolaryngology-Head and Neck Surgery (O.S.), Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts
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Buch K, Fujita A, Li B, Kawashima Y, Qureshi MM, Sakai O. Using Texture Analysis to Determine Human Papillomavirus Status of Oropharyngeal Squamous Cell Carcinomas on CT. AJNR Am J Neuroradiol 2015; 36:1343-8. [PMID: 25836725 DOI: 10.3174/ajnr.a4285] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 12/28/2014] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND PURPOSE Human papillomavirus-associated oropharyngeal squamous cell carcinoma is increasing in prevalence and typically occurs in younger patients than human papillomavirus-negative squamous cell carcinoma. While imaging features of human papillomavirus-positive versus human papillomavirus-negative squamous cell carcinoma nodal metastases have been described, characteristics distinguishing human papillomavirus-positive from human papillomavirus-negative primary squamous cell carcinomas have not been well established. The purpose of this project was to evaluate the use of texture features to distinguish human papillomavirus-positive and human papillomavirus-negative primary oropharyngeal squamous cell carcinoma. MATERIALS AND METHODS Following institutional review board approval, 40 patients with primary oropharyngeal squamous cell carcinoma and known human papillomavirus status who underwent contrast-enhanced CT between December 2009 and October 2013 were included in this study. Segmentation of the primary lesion was manually performed with a semiautomated graphical-user interface. Following segmentation, an in-house-developed texture analysis program extracted 42 texture features from each segmented volume. A t test was used to evaluate differences in texture parameters between human papillomavirus-positive and human papillomavirus-negative squamous cell carcinomas. RESULTS Of the 40 included patients, 29 had human papillomavirus-positive oropharyngeal squamous cell carcinoma and 11 had human papillomavirus-negative oropharyngeal squamous cell carcinoma. Significant differences were seen in the histogram parameters median (P = .006) and entropy (P = .016) and squamous cell carcinoma entropy (P = .043). CONCLUSIONS There are statistically significant differences in some texture features between human papillomavirus-positive and human papillomavirus-negative oropharyngeal tumors. Texture analysis may be considered an adjunct to the evaluation of human papillomavirus status and characterization of squamous cell carcinoma.
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Affiliation(s)
- K Buch
- From the Departments of Radiology (K.B., A.F., B.L., Y.K., O.S.)
| | - A Fujita
- From the Departments of Radiology (K.B., A.F., B.L., Y.K., O.S.)
| | - B Li
- From the Departments of Radiology (K.B., A.F., B.L., Y.K., O.S.)
| | - Y Kawashima
- From the Departments of Radiology (K.B., A.F., B.L., Y.K., O.S.)
| | | | - O Sakai
- From the Departments of Radiology (K.B., A.F., B.L., Y.K., O.S.) Radiation Oncology (M.M.Q., O.S.) Otolaryngology-Head and Neck Surgery (O.S.), Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts.
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8
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Truong MT, Saito N, Ozonoff A, Wang J, Lee R, Qureshi MM, Jalisi S, Sakai O. Prediction of locoregional control in head and neck squamous cell carcinoma with serial CT perfusion during radiotherapy. AJNR Am J Neuroradiol 2011; 32:1195-201. [PMID: 21757530 DOI: 10.3174/ajnr.a2501] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Tumor hypoxia is a known factor of radioresistance in HNSCC. CTP is a noninvasive method of measuring tumor perfusion in vivo. The purpose of our study was to determine serial changes in tumor perfusion in HNSCC during a course of RT by using CTP and to correlate tumor perfusion measurements to LRC. MATERIALS AND METHODS A prospective study was performed in 15 patients with HNSCC receiving definitive RT who underwent serial CTP before RT; at weeks 2, 4, and 6 of RT; and 6 weeks after RT. The median follow-up was 28 months (range, 6-44 months). Thirteen patients achieved LRC, and 2 patients had LRF. Tumor perfusion parameters, including BF, BV, MTT, and CP, were obtained by using a deconvolution-based analysis. RESULTS Pretreatment tumor BF was significantly higher in patients who achieved LRC, 118.0 mL/100 g/min, compared with those with LRF, 53.4 mL/100 g/min (P = .004). Similarly, pretreatment CP was higher in patients with LRC, 16.6 mL/100 g/min, compared with those with LRF, 7.7 mL/100 g/min (P = .02). At week 2 of RT, tumor BF parameters showed a 27.5% increase versus an 18.1% decrease from pretreatment BF values (P = .046) in patients with LRC and LRF, respectively. A decrease in BF and BV was observed in both groups 6 weeks after RT compared with these values at baseline scanning. CONCLUSIONS An increase in tumor BF and CP by using CTP early during a course of RT predicts LRC in patients with HNSCC treated with RT.
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Affiliation(s)
- M T Truong
- Departments of Radiology, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts, USA.
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Tokuda T, Qureshi MM, Ardah MT, Varghese S, Shehab SAS, Kasai T, Ishigami N, Tamaoka A, Nakagawa M, El-Agnaf OMA. Detection of elevated levels of α-synuclein oligomers in CSF from patients with Parkinson disease. Neurology 2010; 75:1766-72. [PMID: 20962290 DOI: 10.1212/wnl.0b013e3181fd613b] [Citation(s) in RCA: 375] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND To date, there is no accepted clinical diagnostic test for Parkinson disease (PD) that is based on biochemical analysis of blood or CSF. The discovery of mutations in the SNCA gene encoding α-synuclein in familial parkinsonism and the accumulation of α-synuclein in the PD brain suggested a critical role for this protein in PD etiology. METHODS We investigated total and α-synuclein oligomers levels in CSF from patients clinically diagnosed with PD, progressive supranuclear palsy (PSP), or Alzheimer disease (AD), and age-matched controls, using ELISA developed in our laboratory. RESULTS The levels of α-synuclein oligomers and oligomers/total-α-synuclein ratio in CSF were higher in the PD group (n = 32; p < 0.0001, Mann-Whitney U test) compared to the control group (n = 28). The area under the receiver operating characteristic curve (AUC) indicated a sensitivity of 75.0% and a specificity of 87.5%, with an AUC of 0.859 for increased CSF α-synuclein oligomers in clinically diagnosed PD cases. However, when the CSF oligomers/total-α-synuclein ratio was analyzed, it provided an even greater sensitivity of 89.3% and specificity of 90.6%, with an AUC of 0.948. In another cross-sectional pilot study, we confirmed that the levels of CSF α-synuclein oligomers were higher in patients with PD (n = 25) compared to patients with PSP (n = 18; p < 0.05) or AD (n = 35; p < 0.001) or control subjects (n = 43; p < 0.05). CONCLUSION Our results demonstrate that levels of α-synuclein oligomers in CSF and the oligomers/total-α-synuclein ratio can be useful biomarkers for diagnosis and early detection of PD.
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Affiliation(s)
- T Tokuda
- Department of Neurology, Kyoto Prefectural University of Medicine, Kyoto, Japan
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10
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Abstract
A six year old girl was admitted to the Kenyatta National Hospital paediatric unit with history of headaches, fever, neck stiffness and paraesthesias of the lower limbs. She was empirically commenced on antimeningitic treatment. Her neurological state deteriorated over a period of two months to paraparesis and paraplegia of the lower limbs with urinary and stool incontinence. A neurology review revealed a sensory level at T10 with power grade 2 in the lower limbs. A myelogram revealed a block of contrast at T12. An impression of cord compression by an intraspinal tumour was made. Laminectomy and posterior midline myelotomy was performed. At operation a greyish-white intramedullary mass lesion was found. Histology revealed a schistosoma mansoni ovum surrounded by granulomatous tissue with giant cells and polymorphoneuclear leucocytes. The child was commenced on paziquantel 1000 mg and dexamethasone 24 mg per day in divided doses. There was marked neurological improvement and the patient went home one month later. She was able to walk without support and was continent of urine and stool at the time of discharge.
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Affiliation(s)
- P K Wanyoike
- Kenyatta National Hospital, P.O Box 20723, Nairobi, Kenya
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11
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Nur-E-Kamal MS, Qureshi MM, Ijaz MK, Galadari SH, Raza H. Proto-oncogene ras GTPase-linked induction of glutathione-S-transferase by growth factors in PC12 cells. Int J Oncol 2000; 16:1043-8. [PMID: 10762643 DOI: 10.3892/ijo.16.5.1043] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
This report provides evidence linking activation of Ras GTPase by growth factors and induction of glutathione-S-transferase isozymes in PC12 cells. Ras GTPase was activated by EGF, NGF, insulin and phorbolester in PC12 cells. Activation of Ras GTPase was found to be associated with induction of the expression of GST mu and pi isoenzymes while there was no detectable induction of GST alpha expression. GST pi was found to be induced by all the Ras GTPase activating agents tested while activation of Ras by phorbolester and insulin induced expression of GST mu only. These results suggest a role of Ras, at least in part, in controlling the expression of GST and that there might be independent signalling pathways for the expression of different GST isoenzymes. GST activity was found to be very high (4-fold) in the lysate obtained from retinoic acid treated PC12 cells when compared with untreated cells. Induction of GST expression was found to be initiated within 30 min of retinoic acid treatment in PC12 cells reaching a maximum level at 4 h. However, immunoblot analysis showed that retinoic acid (RA), unlike mitogens/growth factors, weakly induced the expression of GST pi but not the expression of alpha, mu and microsomal GSTs. Overxpression of inhibitory polypeptides that block signals generated from Ras and Cdc42 was found to reverse the retinoic acid activation-dependent induction of GST expression in PC12 cells. These results provide evidence for the first time suggesting a novel role of Ras GTPase in the regulation of GST expression which might have a significant implication in developing drug resistance and/or growth of cancer cells.
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Affiliation(s)
- M S Nur-E-Kamal
- Department of Biochemistry, Faculty of Medicine and Health Sciences, UAE University, Al Ain, United Arab Emirates
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12
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Nur-e-Kamal MS, Qureshi MM, Kamal JM, Montague W, Maruta H. Construction of a cell-permeable CDC42 binding fragment of ACK that inhibits v-Ha-Ras transformation. Ann N Y Acad Sci 2000; 886:285-8. [PMID: 10667241 DOI: 10.1111/j.1749-6632.1999.tb09438.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- M S Nur-e-Kamal
- Department of Biochemistry, Faculty of Medicine and Health Sciences, UAE University, United Arab Emirates.
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13
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Abstract
Based on the previous experiments with the N17 mutant of CDC42, it has been speculated, but not proved as yet, that CDC42 is required for Ras-induced malignant transformation of fibroblasts. However, since this inhibitor could sequester many GDP-dissociation stimulators (GDSs), such as DBL, OST and Tiam-1 which activate not only CDC42, but also Rho or Rac, in fact it is not a specific inhibitor that inactivates only CDC42. Thus, we have taken the minimum CDC42-binding domain (residues 504 - 545, called ACK42) of the Tyr-kinase ACK-1 that binds only CDC42 in the GTP-bound form, and thereby blocking the interactions of CDC42-GTP with its downstream effectors such as ACKs, PAKs and N-WASP. First of all, using the ACK42-GST fusion protein as a specific ligand for the GTP-CDC42 complex, we have revealed that CDC42 is activated by oncogenic Ras mutants such as v-Ha-Ras in NIH3T3 fibroblasts, and similarly in PC12 cells by both NGF (Nerve Growth Factor) and EGF (Epidermal Growth Factor) which activate the endogenous normal Ras, providing the first direct evidence that CDC42 acts downstream of Ras and NGF/EGF. Furthermore, over-expression of ACK42 completely reversed Ras-induced malignant phenotypes such as focus formation and anchorage/serum-independent growth of the fibroblasts, and a cell-permeable derivative of ACK42 called WR-ACK42 strongly inhibited the growth of Ras transformants, with little effect on the parental normal cell growth, and also abolished Ras-induced filopodium/microspike formation of the fibroblasts which is CDC42-dependent. These observations unambiguously proved for the first time that the RAS-induced activation of CDC42 is indeed essential for Ras to transform the fibroblasts, and furthermore suggest that ACK42 or its peptidomimetics are potentially useful for genotherapy or chemotherapy of Ras-associated cancer.
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Affiliation(s)
- M S Nur-E-Kamal
- Department of Biochemistry, Faculty of Medicine and Health Sciences, UAE University, Al Ain 17666, United Arab Emirates
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14
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Abstract
An asymmetric synthesis of the optically pure isomers of the minor tobacco alkaloid and CNS nicotine metabolite, nornicotine, has been achieved with moderately high optical purity. The synthetic pathway involves alkylation of a chiral ketimine, prepared from either 1R,2R,5R-(+)- or 1S,2S,5S-(-)-2-hydroxy-3-pinanone and 3-(aminomethyl)pyridine with 3-bromopropan-1-ol. After cleavage of the respective C-alkylated ketimines with NH2OH.HCl, and treatment of the resulting amino alcohols with HBr, followed by base-catalyzed intramolecular ring closure, (S)-(-)-nornicotine and (R)-(+)-nornicotine were obtained with ee values of 91% and 81%, respectively.
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Affiliation(s)
- J H Swango
- College of Pharmacy, Department of Pharmaceutical Sciences, University of Kentucky, Lexington 40536-0082, USA
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15
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Bayoumi RA, Dawodu A, Qureshi MM, Al-Khider A, Fitzgerald P, Riou J, Fisher CA, Fitches A, Old JM. The association of Hb Khartoum [beta124(H2)Pro-->Arg] with gamma+-thalassemia is responsible for hemolytic disease in the newborn of a Sudanese family. Hemoglobin 1999; 23:33-45. [PMID: 10081984 DOI: 10.3109/03630269908996146] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The unstable Hb Khartoum with a Pro-->Arg replacement at position beta124 was identified by isoelectrofocusing, high performance liquid chromatography, and peptide mapping in a mother and two male children of a Sudanese family. All three were heterozygous for the abnormal hemoglobin; the father and a third male child did not carry the mutation. The mother was also homozygous for two putative gamma+-thalassemia point mutations, one affecting both Agamma and Ggamma genes at IVS-II-115 (A-->G), and one affecting the Ggamma gene at the 3' untranslated region (-A) at position -6 from the polyadenylation site. The father had normal gamma genes. All three children were heterozygous for both the gamma+-thalassemia mutations. The two older children, who were compound heterozygotes for Hb Khartoum/gamma+-thalassemia, presented at birth with severe neonatal jaundice which necessitated exchange blood transfusions. Other causes of neonatal jaundice were excluded. The third male child, who did not carry the Hb Khartoum anomaly but was heterozygous for gamma+-thalassemia, did not develop neonatal jaundice. It is concluded that the instability of Hb Khartoum in combination with gamma+-thalassemia is responsible for neonatal hemolytic anemia in this family.
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Affiliation(s)
- R A Bayoumi
- College of Medicine, Sultan Qaboos University, Muscat, Oman.
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16
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Khujneri R, Qureshi MM. Role of MRI in the diagnosis of cervical brucellar spondylitis: case report. East Afr Med J 1998; 75:671-2. [PMID: 10065185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Magnetic resonance imaging (MRI) is the most suitable modality for evaluation of infectious spondylitis. It is more sensitive than other imaging modalities for detecting presence and extent of such infections. Though it is not always possible to differentiate various infections on the basis of imaging findings alone, there are certain features which along with a good clinical background, can differentiate brucellar spondylitis from other spinal infections. It is useful to follow up such patients after specific chemotherapy to further confirm the diagnosis.
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Affiliation(s)
- R Khujneri
- Medical Imaging and Therapeutic Centre, Nairobi
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17
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Abstract
All infants born at Al Ain Hospital, United Arab Emirates between 1 January and 30 June 1995 who developed clinically relevant hyperbilirubinaemia defined as jaundice requiring investigation and treatment were prospectively studied. Of the 2300 live births, 85 (3.7%) developed hyperbilirubinaemia. Of these, 22 were premature, 22 had ABO haemolytic disease of the newborn, eight had G6PD deficiency (Mediterranean), seven had breast-milk jaundice, five were born to mothers with diabetes mellitus and one had Rh incompatibility. No specific factor was identified in 20 (24%). Significant differences in the distribution of diagnostic categories were found among the major ethnic groups in the population studied. This first study of the epidemiology of clinically relevant hyperbilirubinaemia in this community identified locally relevant risk factors and highlighted areas of health care which, if modified, might reduce the incidence of hyperbilirubinaemia.
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Affiliation(s)
- A Dawodu
- Department of Paediatrics, Faculty of Medicine & Health Sciences, Al Ain, United Arab Emirates University, United Arab Emirates
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18
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Affiliation(s)
- R A Bayoumi
- Department of Biochemistry, Faculty of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
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19
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Affiliation(s)
- N M Woolhouse
- Department of Biochemistry, Faculty of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
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20
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Abstract
Polymorphic N-acetyltransferase (NAT2) genotypes were determined in 106 unrelated Emiratis by PCR-RFLP analysis to obtain estimates of allele frequencies. Thirteen different genotypes were found, four associated with the rapid acetylator phenotype and nine with the slow acetylator phenotype. Among 67 phenotypically slow acetylators, there was 100% concordance between phenotype and genotype. Among 39 phenotypically rapid acetylators, 37 possessed at least one wild type allele; a 95% concordance with genotype. Seven different NAT2 alleles associated with slow acetylation were found. The commonest was a NAT2*5 type (C481T) allele which occurred with a frequency of 0.53, a significantly higher frequency than has been reported for other ethnic groups. A second slow allele, a NAT2*6 type (G590A), occurred with a frequency of 0.21. The most common genotypes found were NAT2*5/*5 homozygotes, NAT2*5/*6 heterozygotes and NAT2*4/*5 heterozygotes with frequencies of 0.25, 0.25 and 0.22 respectively. The high overall prevalence of alleles associated with slow acetylation (173/212; 81.6%) among Emiratis is consistent with previously reported high frequency of the slow acetylator phenotype in Arabs. Two apparently new slow alleles were identified but have not yet been fully characterized. One appears to be a NAT2*5 variant allele. The other uncharacterized allele appears likely to contain an entirely new mutation associated with slow acetylation.
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Affiliation(s)
- N M Woolhouse
- Department of Biochemistry, Faculty of Medicine and Health Sciences, United Arab Emirates University, Al Ain, UAE
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21
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Bayoumi RA, Nur-E-Kamal MS, Tadayyon M, Mohamed KK, Mahboob BH, Qureshi MM, Lakhani MS, Awaad MO, Kaeda J, Vulliamy TJ, Luzzatto L. Molecular characterization of erythrocyte glucose-6-phosphate dehydrogenase deficiency in Al-Ain District, United Arab Emirates. Hum Hered 1996; 46:136-41. [PMID: 8860007 DOI: 10.1159/000154342] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
In a cross-sectional study, the activity, electrophoretic mobility and genotypes of glucose-6-phosphate dehydrogenase (G6PD) were determined among healthy, UAE national school boys from Al-Ain District in the United Arab Emirates, The prevalence of G6PD deficiency in this population sample was 11%. The majority of G6PD-deficient subjects were descendants of Omani, Baluchi or Yemeni migrants. Of 18 deficient subjects, 16 had an enzyme activity of < 10% of normal while 2 had an activity of just above 10%. Electrophoresis was performed on 166 samples and showed that, apart from deficient samples, all had the normal mobility of G6PD type B. Of the 18 deficient subjects, 14 had the B type mobility of G6PD Mediterranean and 4 had the A type mobility of G6PD A-. Genotyping demonstrated that 10 had the Mediterranean mutation while 3 had the A- mutation, consistent with their electrophoretic mobility. Another 3 had the G6PD Aures mutation, recently described as polymorphic in Algeria and Spain. The mutations in the remaining 2 subjects have not yet been identified.
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Affiliation(s)
- R A Bayoumi
- Department of Biochemistry, Faculty of Medicine and Health Sciences, United Arab Emirates University
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22
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Raza H, Qureshi MM, Montague W. Alteration of glutathione, glutathione S-transferase and lipid peroxidation in mouse skin and extracutaneous tissues after topical application of gasoline. Int J Biochem Cell Biol 1995; 27:271-7. [PMID: 7780831 DOI: 10.1016/1357-2725(95)93663-i] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The skin is the major environmental interface of the human body and is repeatedly exposed to a broad array of exogenous chemicals potentially capable of causing toxicity. In the present study we have applied 3, 6 or 12 ml leaded gasoline/kg body weight to the skin of adult male Swiss mice for 7 consecutive days and then sacrificed the animals on 8th day after an overnight fast. Glutathione (GSH) concentration, lipid peroxidation and other GSH-dependent enzyme activities were measured in skin, liver, brain and blood tissues of the mice. Topical application of 12 ml/kg gasoline caused a significant increase in water consumption by the animals, although, their body weight and food consumption was not significantly affected. A 40-60% decrease in blood concentration of glucose, triglyceride, and cholesterol was also observed after the treatment. The hemoglobin concentration, GSH content, lipid peroxidation and glucose 6-phosphate dehydrogenase activity of erythrocytes were not significantly affected by the gasoline treatment. However, a decrease in GSH concentration (16-21%), lipid peroxidation (30-60%) and glutathione S-transferase (GST) activity (30-40%) was observed in skin, liver and brain after gasoline application. Western blot analysis of tissues using antibodies against GST isoenzymes demonstrated an alteration in the expression of various GST isoenzymes after gasoline treatment. Our results suggest that topical exposure of gasoline causes some deleterious effects on skin and extracutaneous tissues.
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Affiliation(s)
- H Raza
- Department of Biochemistry, Faculty of Medicine and Health Sciences, UAE University, Al-Ain, United Arab Emirates
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23
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24
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Qureshi MM, Roble DC, Gindin RA, Scudamore HH. Subarachnoid-pleural fistula. Case report and review of the literature. J Thorac Cardiovasc Surg 1986; 91:238-41. [PMID: 3945091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A case is described of a subarachnoid-pleural fistula developing after resection of an intrathoracic benign nerve sheath tumor near the eleventh thoracic vertebra. The fistula was demonstrated by myelography and was corrected surgically. Of 12 previously reported cases, 11 occurred after trauma and one after an operation.
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25
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Qureshi MM. Interstitial lung disease caused by chronic nitrofurantoin reaction; case report. Wis Med J 1984; 83:20-2. [PMID: 6485363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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26
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Qureshi MM, Dickie HM. Coexistence of blastomycosis with epidermoid carcinoma of the lung; case report. Wis Med J 1981; 80:29-30. [PMID: 7324499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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27
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Aslam M, Abdullah AK, Siddiqui MA, Tajuddin M, Qureshi MM, Ali M, Husain E. A study of cardiac potential distribution on body surface in normal adults: QRS isopotential surface maps. Indian Heart J 1978; 30:299-302. [PMID: 730211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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