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Liaquat Memon H, Taha Yaseen R, Ali Khalid M, Lail G, Shahzad S, Ul Haque MM, Abrar G, Ahmed Khan S, Laeeq SM, Hassan Luck N. Diagnostic Accuracy of Narrow-Band Imaging in Predicting Helicobacter pylori Gastritis in Patients With Dyspepsia. Cureus 2024; 16:e54756. [PMID: 38524000 PMCID: PMC10961053 DOI: 10.7759/cureus.54756] [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] [Accepted: 02/23/2024] [Indexed: 03/26/2024] Open
Abstract
Background Helicobacter pylori (H. pylori) is one of the most prevalent causes of chronic gastritis that can lead to gastric cancer if left untreated. Currently, endoscopy and histology are the gold standard tests for the diagnosis of H. pylori gastritis. Recently, studies have shown the utility of narrow-band imaging (NBI) in predicting H. pylori gastritis. Therefore, we aimed to determine the diagnostic accuracy of NBI in predicting H. pylori gastritis in patients with dyspepsia. Methodology After obtaining approval from the Ethical Review Committee, Sindh Institute of Urology and Transplantation, this cross-sectional study was conducted in the outpatient Clinic of Hepatogastroenterology of the institute. Inclusion criteria involved all patients of either gender aged 18 to 65 years with dyspeptic symptoms. We excluded patients with a history of proton pump inhibitor use within two weeks before endoscopy, heart failure, previous gastrectomy, portal gastropathy, cirrhosis, use of antiplatelet medications, non-steroidal anti-inflammatory drugs or anticoagulant medication, and hemorrhagic or thrombophilia disorders. Each patient underwent endoscopy-guided NBI studies followed by biopsies from the antrum and body of the stomach. Multivariate logistic regression analysis was performed for the type of NBI pattern predicting H. pylori infection. The diagnostic accuracy was obtained individually for each NBI type and then for the presence of either two or all three NBI types in predicting H. pylori gastritis. Results Out of the total 775 patients enrolled in the study, abnormal NBI patterns were observed in 401 (51.7%) patients. The presence of abnormal NBI antral mucosal pattern on endoscopy was significantly associated with H. pylori infection (p < 0.001) with excellent diagnostic accuracy. Among the three NBI types, individually, NBI type III had excellent specificity and better diagnostic accuracy in predicting H. pylori gastritis than the other two types. Furthermore, the presence of all three abnormal NBI patterns (I+II+III) together was significantly associated with the presence of H. pylori gastritis with a sensitivity of 94.54%, specificity of 86.55%, and diagnostic accuracy of 90.32%. Conclusions NBI on endoscopy shows excellent diagnostic accuracy in identifying H. pylori gastritis in patients with dyspepsia. However, multicenter studies are required not only to validate our results but also to predict the pre-cancerous lesions on NBI in patients with H. pylori gastritis.
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Affiliation(s)
- Hassan Liaquat Memon
- Department of Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
| | - Raja Taha Yaseen
- Department of Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
| | - Muhammad Ali Khalid
- Department of Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
| | - Ghulamullah Lail
- Department of Medicine, Jinnah Medical & Dental College, Karachi, PAK
| | - Saleem Shahzad
- Department of Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
| | | | - Ghazi Abrar
- Department of Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
| | - Shoaib Ahmed Khan
- Department of Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
| | - Syed Mudassir Laeeq
- Department of Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
| | - Nasir Hassan Luck
- Department of Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
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Nadeem K, Shahzad S, Hassan A, Usman Younus M, Asad Ali Gillani S, Farhan K. Municipal solid waste generation and its compositional assessment for efficient and sustainable infrastructure planning in an intermediate city of Pakistan. Environ Technol 2023; 44:3196-3214. [PMID: 35302920 DOI: 10.1080/09593330.2022.2054370] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 03/10/2022] [Indexed: 06/14/2023]
Abstract
It is imperative to design and operate sustainable solid waste management (SWM) systems in cities based on the results of waste amount and characterization study (WACS). In this work, WACS was conducted and results were used to design an SWM system for an intermediate city of Pakistan. The study revealed that about 110 tons of solid waste per day is generated with a per capita rate of 0.337 kg/day. Around 51.2% of mixed municipal solid waste (MSW) is organic in nature and its non-scientific disposal is resulting in higher greenhouse gas (GHG) emissions. It was also found that more than 80% of valuables are taken away by the informal sector during the transfer of MSW from the generation source to the dumping site. Ultimate analyses showed that the moisture content (MC) and carbon to nitrogen (C:N) ratio were 64.23% and 51.14%, respectively. Proximate analysis revealed that moisture and calorific values were 57 % and 3505 BTU/lb., respectively. Based on these results, a material sorting facility (MSF) was proposed, with an estimated investment cost of US $3.64 million. However, the efficiency of the existing collection system is limited to 32 % only. In order to improve the collection efficiency (>90 %), an additional investment of US $1.638 million was estimated with an operations and maintenance (O&M) cost of US $19.25 per ton. Existing non-scientific MSW disposal practices contribute 32,079.61 CO2e tons/year of GHG emissions. The proposed MSF followed by composting is estimated to reduce GHG emissions by 38% to 19,722.38 CO2e tons/year.
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Affiliation(s)
- K Nadeem
- Laboratoire de Génie Chimique, CNRS, INPT, UPS, Université de Toulouse, Toulouse, France
| | - S Shahzad
- LMDC, INSA, UPS Génie Civil, Université de Toulouse, Toulouse Cedex, France
| | - A Hassan
- Chemical Engineering Department, MNS University of Engineering and Technology, Multan, Pakistan
| | - M Usman Younus
- Ecole Mathématiques, Informatique, Télécommunications de Toulouse, Université de Toulouse, Toulouse, France
- Department of Computer Science & IT, University of Jhang, Pakistan
| | - S Asad Ali Gillani
- Civil Engineering Department, University of Engineering and Technology, Lahore, Pakistan
| | - K Farhan
- The Urban Unit, Planning & Development Department, Government of the Punjab, Lahore, Pakistan
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Panezai MQ, Taha Yaseen R, Lail G, Ali Khalid M, Ismail H, Majid Z, Kumar D, Shahzad S, Laeeq SM, Hassan Luck N. Correlation of Model for End Stage Liver Disease (MELD), MELD-Sodium (MELD-Na), and Child-Turcotte-Pugh (CTP) Score With Frailty in Patients With Hepatitis C Virus (HCV) Related Cirrhosis. Cureus 2023; 15:e40574. [PMID: 37465808 PMCID: PMC10351912 DOI: 10.7759/cureus.40574] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/17/2023] [Indexed: 07/20/2023] Open
Abstract
INTRODUCTION The model for end stage liver disease (MELD), model for end stage liver disease-sodium (MELD Na), and Child-Turcotte-Pugh (CTP) score are independent predictors of mortality in cirrhotic patients. Approximately 43% of cirrhotic patients with advanced disease are frail and can have detrimental effects on the disease prognosis and survival including delisting from the transplant list and increased risk of post-transplant complications. Therefore, our aim was to determine the correlation of MELD, MELD-Na, and CTP score with frailty in patients with hepatitis C virus (HCV) related cirrhosis. METHODS This cross-sectional study was conducted at the Department of Hepato-gastroenterology, Sindh Institute of Urology and Transplantation from 1st January 2022 to 30th June 2022. All the patients of either gender aged between 18 and 70 years with serological evidence of HCV and features of cirrhosis on ultrasound abdomen were included in the study. Patients with conditions over estimating frailty were excluded from the study. Liver Frailty Index (LFI) was calculated using grip strength measured in kilograms, timed chair stands, and balance testing. CTP and MELD-Na scores for each patient were also recorded. All the data were analyzed using SPSS version 22.0 (IBM Corp., Armonk, NY). The correlation of MELD, MELD-Na, and CTP with LFI was analyzed using the Pearson correlation coefficient and a p-value < 0.05 was considered statistically significant. RESULTS A total of 274 patients were included in the study. Out of them, 185 (67.5%) were males. The mean CTP score was 8.1 + 2.1, MELD score of 13.6 + 7.1, MELD-Na score of 15 + 6.6, and LFI of 4.1 + 0.83. LFI was found to be weakly correlated with MELD (r = 0.278) (p < 0.001), MELD-Na score (r = 0.41) (p < 0.001), and CTP score (r = 0.325) (p < 0.001). CONCLUSION Weak correlation was noted between LFI, CTP, MELD, and MELD-Na scores in HCV-associated chronic liver disease. Therefore, frailty along with MELD, MELD-Na, and CTP must be assessed before considering the patients for liver transplantation.
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Affiliation(s)
| | - Raja Taha Yaseen
- Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
| | - Ghulamullah Lail
- Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
| | - Muhammad Ali Khalid
- Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
| | - Hina Ismail
- Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
| | - Zain Majid
- Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
| | - Danish Kumar
- Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
| | - Saleem Shahzad
- Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
| | - Syed Mudassir Laeeq
- Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
| | - Nasir Hassan Luck
- Hepatogastroenterology, Sindh Institute of Urology and Transplantation, Karachi, PAK
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Upson S, Murphy M, Ashraf F, Shahzad S. DOUBLE TROUBLE: A CASE OF SUSPECTED ANTIPHOSPHOLIPID SYNDROME IN THE SETTING OF HYPERCOAGULABLE COVID-19 PNEUMONIA. Chest 2020. [PMCID: PMC7548552 DOI: 10.1016/j.chest.2020.08.801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Zahid A, Shahzad S, Ganaie M. OPTIMISING PRE-IMAGING DIAGNOSIS OF PULMONARY EMBOLISM: A COMPARISON OF YEARS ALGORITHM WITH ORIGINAL AND SIMPLIFIED WELL’S SCORES. Chest 2020. [DOI: 10.1016/j.chest.2020.05.444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Abbas Z, Siddiqui BS, Shahzad S, Sattar S, Begum S, Batool A, Choudhary MI. Lawsozaheer, a new chromone produced by an endophytic fungus Paecilomyces variotii isolated from Lawsonia Alba Lam. inhibits the growth of Staphylococcus aureus. Nat Prod Res 2020; 35:4448-4453. [PMID: 32091239 DOI: 10.1080/14786419.2020.1729148] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
One new chromone, lawsozaheer (1), and five known compounds 4-(2-hydroxyethyl) phenol (2), viriditoxin (3), stigmasta-4,6,8(14),22-tetraen-3-one (4), β-sitosterol (5) and stigmasterol (6) were isolated from the fungal broth of Paecilomyces variotii. Their structures were elucidated using spectroscopic data. The configuration of 1 was determined by Horeau's method. The broth extract and compound 1 showed highly selective activity against Staphylococcus aureus (NCTC 6571) bacterium with 83.19 and 84.26% inhibition respectively at 150 µg/mL, comparing well with that of standard drug ofloxacin (87.013% inhibition at 100 µg/mL). Broth extract also showed 75, and 40% inhibition of Candida albicans and Fusarium lini, respectively.
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Affiliation(s)
- Zaheer Abbas
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Bina Shaheen Siddiqui
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Saleem Shahzad
- Department of Agriculture & Agribusiness Management, University of Karachi, Karachi, Pakistan
| | - Samia Sattar
- Department of Agriculture & Agribusiness Management, University of Karachi, Karachi, Pakistan
| | - Sabira Begum
- Department of biochemistry, faculty of science, Icing Abdnlaziz university, Jeddah, Saudia Arabia
| | - Anum Batool
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Mohammad Iqbal Choudhary
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan.,Department of biochemistry, faculty of science, Icing Abdnlaziz university, Jeddah, Saudia Arabia
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Affiliation(s)
- Ivan Wong
- 1 Department of Medicine and.,2 Division of Pulmonary and Critical Care, NewYork-Presbyterian Brooklyn Methodist Hospital, Brooklyn, New York
| | - Saleem Shahzad
- 1 Department of Medicine and.,2 Division of Pulmonary and Critical Care, NewYork-Presbyterian Brooklyn Methodist Hospital, Brooklyn, New York
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Sana T, Siddiqui BS, Shahzad S, Farooq AD, Siddiqui F, Sattar S, Begum S. Antiproliferative Activity and Characterization of Metabolites of Aspergillus nidulans: An Endophytic Fungus from Nyctanthes arbor-tristis Linn. Against Three Human Cancer Cell Lines. Med Chem 2018; 15:352-359. [PMID: 30152287 DOI: 10.2174/1573406414666180828124252] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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: 02/19/2018] [Revised: 07/05/2018] [Accepted: 08/27/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Endophytic fungi are receiving attention as sources of structurally novel bioactive secondary metabolites towards drug discovery from natural products. This study reports the isolation and characterization of secondary metabolites from an endophytic fungus Aspergillus nidulans, associated with Nyctanthes arbor-tristis Linn., a plant which has a traditional use to cure many ailments including cancer. OBJECTIVE The objective of this study was to evaluate the antiproliferative activity of the metabolites of A. nidulans from N. arbor-tristis on three human cancer cell lines, lung (NCI-H460), breast (MCF-7) and uterine cervix (HeLa), and carry out their characterization. METHODS The extracts of the endophytic fungus cultured on potato dextrose agar were subjected to various chromatographic techniques. Structures of pure compounds were determined using spectroscopic techniques. The non-polar constituents were analyzed by GC-MS. Antiproliferative activity was determined by sulforhodamine B (SRB) assay. RESULTS The extracts and fractions showed moderate to good growth inhibition of the aforementioned human cancer cell lines. The broth extract was most potent (IC50 = 10 ± 3.1 μg/mL and LC50= 95 ± 3.9) against HeLa whereas petroleum ether insoluble fraction of mycelium was most active against NCI-H460 and MCF-7 (IC50 = 10 ± 2.1 µg/mL and 18 ± 3.1 µg/mL respectively). GC-MS led to identify 12 compounds in mycelium and 19 compounds in broth. Four pure compounds were isolated and characterized one compound 5, 10-dihydrophenazine-1-carboxylic acid (1) from broth and three 1-hydroxy-3-methylxanthone (2), ergosterol (3) and sterigmatocystin (4) from mycelium. 1 has not been reported earlier as a plant/fungal metabolite while 2-4 are new from this source. Sterigmatocystin exhibited growth inhibitory effect (IC50 = 50 ± 2.5 µM/mL) against only MCF-7 cell line whereas other compounds had IC50 > 100. CONCLUSIONS In this paper, the cytotoxicity of mycelium and broth constituents of endophytic fungus Aspergillus nidulans from Nyctanthes arbor-tristis is reported for the first time. The study shows that fungus Aspergillus nidulans from Nyctanthes arbor-tristis is capable of producing biologically active natural compounds and provides a scientific rationale for further chemical investigations of endophyte-producing natural products.
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Affiliation(s)
- Talea Sana
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270, Pakistan
| | - Bina S Siddiqui
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270, Pakistan
| | - Saleem Shahzad
- Department of Agriculture & Agribusiness Management, University of Karachi, Karachi, Pakistan
| | - Ahsana D Farooq
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270, Pakistan
| | - Faheema Siddiqui
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270, Pakistan
| | - Samia Sattar
- Department of Agriculture & Agribusiness Management, University of Karachi, Karachi, Pakistan
| | - Sabira Begum
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270, Pakistan
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Khan S, Ansar M, Khan AK, Shah K, Muhammad N, Shahzad S, Nickerson DA, Bamshad MJ, Santos-Cortez RLP, Leal SM, Ahmad W. A homozygous missense mutation in SLC25A16 associated with autosomal recessive isolated fingernail dysplasia in a Pakistani family. Br J Dermatol 2017; 178:556-558. [PMID: 28504827 DOI: 10.1111/bjd.15661] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- S Khan
- Department of Biotechnology and Genetic Engineering, Kohat University of Science and Technology, Kohat, Khyber Pakhtunkhwa, Pakistan.,Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - M Ansar
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - A K Khan
- Department of Biotechnology and Genetic Engineering, Kohat University of Science and Technology, Kohat, Khyber Pakhtunkhwa, Pakistan
| | - K Shah
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - N Muhammad
- Department of Biotechnology and Genetic Engineering, Kohat University of Science and Technology, Kohat, Khyber Pakhtunkhwa, Pakistan
| | - S Shahzad
- Department of Biotechnology & Bioinformatics, International Islamic University, Islamabad, Pakistan
| | - D A Nickerson
- Department of Genome Sciences, University of Washington, Seattle, WA, U.S.A
| | - M J Bamshad
- Department of Genome Sciences, University of Washington, Seattle, WA, U.S.A.,Department of Pediatrics, University of Washington, Seattle, WA, U.S.A
| | - R L P Santos-Cortez
- Center for Statistical Genetics, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, U.S.A.,Department of Otolaryngology, University of Colorado School of Medicine, Aurora, CO, U.S.A
| | - S M Leal
- Center for Statistical Genetics, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, U.S.A
| | - W Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
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Singhal R, Shahzad S. Pneumothorax Necessitans: Rare Complication of Empyema Thoracis. Chest 2016. [DOI: 10.1016/j.chest.2016.08.760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Shah K, Nasir A, Irfanullah, Shahzad S, Khan S, Ahmad W. A novel homozygous mutation disrupting the initiation codon in the SLURP1 gene underlies mal de Meleda in a consanguineous family. Clin Exp Dermatol 2016; 41:675-679. [PMID: 29226984 DOI: 10.1111/ced.12864] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/24/2015] [Indexed: 01/23/2023]
Abstract
Mal de Meleda (MDM) is a palmoplantar keratoderma (PPK), characterized by hyperkeratosis of the palms and soles, and keratotic skin lesions. Patients with MDM can develop perioral erythema, keratotic and lichenoid plaques over the joints (including the elbows and knees), nail abnormalities, joint contractures and stiffness, brachydactyly, sclerodactyly, pseudoainhum, and malodorous maceration. MDM is associated with mutations in the SLURP1 gene. We report a consanguineous family in which MDM was inherited in an autosomal recessive manner. Genotyping using microsatellite markers established linkage in the family to the SLURP1 gene, which has been mapped previously to chromosome 8q24.3. Sequence analysis revealed a homozygous missense mutation (c.2T>C, p.Met1Thr) in affected family members. Molecular docking studies using a ZDOCK server predicted disruption of binding of the mutant variant to its target α7-nAChR. This study further supports the previously reported findings that homozygous mutations in the SLURP1 gene cause MDM.
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Affiliation(s)
- K Shah
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - A Nasir
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - Irfanullah
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - S Shahzad
- Department of Biotechnology, International Islamic University, Islamabad, Pakistan
| | - S Khan
- Department of Biotechnology and Genetic Engineering, Kohat University of Science and Technology (KUST), Kohat, 26000, Pakistan
| | - W Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
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Ramzan N, Noreen N, Perveen Z, Shahzad S. Effect of seed pelleting with biocontrol agents on growth and colonisation of roots of mungbean by root-infecting fungi. J Sci Food Agric 2016; 96:3694-3700. [PMID: 26619828 DOI: 10.1002/jsfa.7553] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 11/24/2015] [Accepted: 11/24/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Mungbean (Vigna radiata (L.) Wilczek) is a leguminous pulse crop that is a major source of proteins, vitamins and minerals. Root-infecting fungi produce severe plant diseases like root rot, charcoal rot, damping-off and stem rot. The soil-borne pathogens can be controlled by chemicals, but these chemicals have several negative effects. Use of microbial antagonist such as fungi and bacteria is a safe, effective and eco-friendly method for the control of many soil-borne pathogens. Biological control agents promote plant growth and develop disease resistance. Application of bacteria and fungi as seed dressing suppressed the root-infecting fungi on leguminous crops. RESULTS Seeds of mungbean were pelleted with different biocontrol agents to determine their effect on plant growth and colonisation of roots by root-infecting fungi, viz. Fusarium solani, Macrophomina phaseolina, Pythium aphanidermatum, Rhizoctonia solani and Sclerotium rolfsii. Treatment of mungbean seeds with fungal antagonists showed more shoot and root length as compared to bacterial antagonists, whereas seed treated with bacterial antagonists showed maximum shoot and root weight. Trichoderma harzianum and Bacillus subtilis were the best among all the biocontrol agents since they provided the highest plant growth and greater reduction in root colonisation by all root-infecting fungi. Bacillus cereus, Trichoderma virens, Pseudomonas fluorescens and Micrococcus varians were also effective against root-infecting fungi but to a lesser extent. T. harzianum, T. virens, B. subtilis and P. fluorescens were found to be best among all biocontrol agents. CONCLUSION The root-infecting fungi can be controlled by pelleting seeds with biocontrol agents as it is safe and effective method. Additionally, plant growth was promoted more by this method. © 2015 Society of Chemical Industry.
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Affiliation(s)
- Nadia Ramzan
- Pest & Disease Research Lab., Department of Agriculture & Agribusiness Management, University of Karachi, Karachi, 75270, Pakistan
| | - Nayara Noreen
- Pest & Disease Research Lab., Department of Agriculture & Agribusiness Management, University of Karachi, Karachi, 75270, Pakistan
| | - Zahida Perveen
- Pest & Disease Research Lab., Department of Agriculture & Agribusiness Management, University of Karachi, Karachi, 75270, Pakistan
| | - Saleem Shahzad
- Pest & Disease Research Lab., Department of Agriculture & Agribusiness Management, University of Karachi, Karachi, 75270, Pakistan
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Sarwar R, Mansoor Q, Farooqi AA, Shahzad S, Fayyaz S, Ismail M. Genetic variants in the tumor Necrosis Factor-Related Apoptosis-Inducing Ligand (TRAIL) do not contribute but Death Receptor (DR4) genes may contribute to susceptibility to head and neck cancer in Pakistani population. Cell Mol Biol (Noisy-le-grand) 2015; 61:53-56. [PMID: 26718429] [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] [Received: 11/22/2015] [Accepted: 12/15/2015] [Indexed: 06/05/2023]
Abstract
TRAIL mediated signaling in cancer cells has emerged as one amongst the most deeply studied molecular phenomenon. Recent breakthroughs have shown that overexpression of anti-apoptotic proteins, inactivation of pro-apoptotic proteins, transcriptional downregulation of TRAIL, DR4/DR5, degradation of DR/DR5 are some of the mechanisms which dramatically abrogate TRAIL induced apoptosis in cancer cells. Data obtained through genetic studies has highlighted highly polymorphic nature of DR4 and in accordance with this concept, we investigated the association between Head and Neck Cancer and polymorphisms in TRAIL (1595 C/T) and DR4 (C626G and A1322G) gene. We selected 100 patients with Head and Neck Cancer and 100 healthy, sex and age matched volunteers randomly. C626G and A1322G in DR4 gene were analyzed using Polymerase Change Reaction (PCR) - Restriction Fragment Length Polymorphism (RFLP) and Amplification Refractory Mutation System (ARMS) techniques respectively. For TRAIL gene 1595 C>T genotypes, there was no statistically significant role of homozygous CC or TT in Head and Neck cancer. CC was 58% in patients and 49% in controls. CT was 30% in patients and 43% in controls. TT was 12% in patients and 8% in controls. Allele frequency for C was noted to be 0.73 (patients) and 0.705 (controls), p-value (1). For T, 0.025 (patients) and 0.001(controls), p-value (0.88). The genotyping for DR4 gene 626 C>G polymorphism was done for 100 head and neck cancer patients and 100 age and sex matched healthy controls. All the genotypes for the polymorphism were in Hardy-Weinberg Equilibrium. For DR4626 C>G genotype, CC was 10% in patients and 2% in controls. GC was 63% in patients and 40% in controls. GG was 27% in patients and 58% in controls. Interestingly, in DR4 genotyping, CC was predisposing factor and GG acted as a protective factor. Allele frequency for C was noted to be 0.41 (patients) and 0.22 (controls), p-value (0.81). For G, 0.585 (patients) and 0.78 (controls), p-value (0.867). For the A1322G polymorphism, TT was 23% in patients and 36% in controls with a p-value 0.09 (table 6). CT was statistically significant in patients (45%) and controls (28%), p-value 0.04. CC was non-significant in patients (32%) and controls (36%), p-value 0.62 (table 6). C allele was 0.45% in patients and 0.5% in controls. T allele was 0.54% in patients and 0.5% in controls. Future studies must converge on somatic mutations, epigenetic mutations and expression analysis of TRAIL and DR4 to get a step closer to individualized medicine.
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Affiliation(s)
- R Sarwar
- Institute of Biomedical and Genetic Engineering (IBGE) Islamabad Pakistan
| | - Q Mansoor
- Institute of Biomedical and Genetic Engineering (IBGE) Islamabad Pakistan
| | - A A Farooqi
- Institute of Biomedical and Genetic Engineering (IBGE) Islamabad Pakistan
| | - S Shahzad
- International Islamic University Department of Bioinformatics and Biotechnology Islamabad Pakistan
| | - S Fayyaz
- Rashid Latif Medical College Laboratory for Translational Oncology and Personalized Medicine Lahore Pakistan
| | - M Ismail
- Institute of Biomedical and Genetic Engineering (IBGE) Islamabad Pakistan
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Patel E, Juan G, Vaidya A, Thomas A, Taillon J, Milan S, Gross L, Shahzad S. Near Complete Resolution of Invasive Thymoma With Corticosteroid Therapy. Chest 2015. [DOI: 10.1378/chest.2263968] [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: 11/01/2022] Open
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de Cock A, Lodhi A, Rintoul T, Bala K, Robideau G, Abad ZG, Coffey M, Shahzad S, Lévesque C. Phytopythium: molecular phylogeny and systematics. Persoonia 2015; 34:25-39. [PMID: 26240443 PMCID: PMC4510269 DOI: 10.3767/003158515x685382] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [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: 01/28/2014] [Accepted: 09/27/2014] [Indexed: 11/25/2022]
Abstract
The genus Phytopythium (Peronosporales) has been described, but a complete circumscription has not yet been presented. In the present paper we provide molecular-based evidence that members of Pythium clade K as described by Lévesque & de Cock (2004) belong to Phytopythium. Maximum likelihood and Bayesian phylogenetic analysis of the nuclear ribosomal DNA (LSU and SSU) and mitochondrial DNA cytochrome oxidase subunit 1 (COI) as well as statistical analyses of pairwise distances strongly support the status of Phytopythium as a separate phylogenetic entity. Phytopythium is morphologically intermediate between the genera Phytophthora and Pythium. It is unique in having papillate, internally proliferating sporangia and cylindrical or lobate antheridia. The formal transfer of clade K species to Phytopythium and a comparison with morphologically similar species of the genera Pythium and Phytophthora is presented. A new species is described, Phytopythium mirpurense.
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Affiliation(s)
- A.W.A.M. de Cock
- CBS-KNAW Fungal Biodiversity Centre, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
| | - A.M. Lodhi
- Department of Plant Pathology, Sindh Agriculture University, Tandojam, Pakistan
| | - T.L. Rintoul
- Agriculture and Agri-Food Canada, 960 Carling Ave, Ottawa, ON K1A 0C6, Canada
| | - K. Bala
- Agriculture and Agri-Food Canada, 960 Carling Ave, Ottawa, ON K1A 0C6, Canada
| | - G.P. Robideau
- Agriculture and Agri-Food Canada, 960 Carling Ave, Ottawa, ON K1A 0C6, Canada
| | - Z. Gloria Abad
- USDA-APHIS-PPQ-Center of Plant Health Science and Technology, Bldg 580, BARC-e, Powder Mill Road, Beltsville, MD 20705, USA
| | - M.D. Coffey
- Department of Plant Pathology and Microbiology, University of California, Riverside, CA 92521, USA
| | - S. Shahzad
- Department of Agriculture, University of Karachi, Karachi, Pakistan
| | - C.A. Lévesque
- Agriculture and Agri-Food Canada, 960 Carling Ave, Ottawa, ON K1A 0C6, Canada
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Juan G, Shahzad S, Genovesi M. Inflammatory Myofibroblastic Tumor Mimicking Asthma Exacerbation. Chest 2014. [DOI: 10.1378/chest.1992493] [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: 11/01/2022] Open
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Juan G, Bansal R, Wong I, Shahzad S. A Case of West Nile Poliomyelitis. Chest 2014. [DOI: 10.1378/chest.1995145] [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: 11/01/2022] Open
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Abbas Q, Kumar M, Vasudevan V, Shahzad S, Ahmad M, Jinnur P, Tiwary T. Adenocarcinoma of Lung Presenting as Diffuse Nodular Pleural Thickening With Lung Entrapment Mimicking Mesothelioma: A Case Report. Chest 2012. [DOI: 10.1378/chest.1389877] [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: 11/01/2022] Open
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Abbas Q, Vasudevan V, Arjomand F, Kumar M, Contreras J, Shahzad S, Jinnur P, Ahmad M, Tiwary T, Ali R, Vasudevan P. Occlusive Sleep Apnea (OSA) Screening and Preemptive Continuous Positive Airway Pressure (CPAP)/Bilevel Positive Airway Pressure (BiPAP) Application Is Effective in Reducing Post Bariatric Surgery Pulmonary Complications. Chest 2012. [DOI: 10.1378/chest.1389801] [Citation(s) in RCA: 3] [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: 11/01/2022] Open
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Vasudevan VP, Suryanarayanan M, Shahzad S, Megjhani M. Mycoplasma pneumoniae bronchiolitis mimicking asthma in an adult. Respir Care 2012; 57:1974-6. [PMID: 22418091 DOI: 10.4187/respcare.01613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Khan I, Vasudevan V, Arjomand F, Ali R, Shahzad S. Quetiapine Induced Fatal Neuroleptic Malignant Syndrome(NMS) and Hyperosmolar Hyperglycemic Nonketotic Coma (HHNC). Chest 2011. [DOI: 10.1378/chest.1114380] [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: 11/01/2022] Open
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Rasheed A, Vasudevan V, Shahzad S, Arjomand F, Reminick S. Spirometery Interpretation Strategies in the Diagnosis and Severity Classification of Chronic Obstructive Pulmonary Disease: Discordance Between GOLD and ATS/ERS 2005 Criteria and Treatment Implication. Chest 2011. [DOI: 10.1378/chest.1118428] [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: 11/01/2022] Open
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Abbas Q, Kooragayalu S, Vasudevan V, Vasudevan V, Shahzad S, Arjomand F, Reminick S. PFT Pattern of Restrictive Ventilatory Defect in Obesity and Its Diagnostic Value. Chest 2011. [DOI: 10.1378/chest.1116950] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Shahzad S, Suryanarayanan M, Nallagatla S, Verma V, Vasudevan V, Arjomand F, Ali R, Reminick S. A 70-Year-Old Woman With Endobronchial Fibroepithelial Polyp. Chest 2011. [DOI: 10.1378/chest.1113810] [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: 11/01/2022] Open
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