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Ahmad S, Ullah A, Shah K, Salahshour S, Ahmadian A, Ciano T. Fuzzy fractional-order model of the novel coronavirus. ADVANCES IN DIFFERENCE EQUATIONS 2020; 2020:472. [PMID: 32922446 PMCID: PMC7474331 DOI: 10.1186/s13662-020-02934-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 08/27/2020] [Indexed: 05/18/2023]
Abstract
In this paper, a novel coronavirus infection system with a fuzzy fractional differential equation defined in Caputo's sense is developed. By using the fuzzy Laplace method coupled with Adomian decomposition transform, numerical results are obtained for better understanding of the dynamical structures of the physical behavior of COVID-19. Such behavior on the general properties of RNA in COVID-19 is also investigated for the governing model. The results demonstrate the efficiency of the proposed approach to address the uncertainty condition in the pandemic situation.
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Ullah A, Pirzada M, Jahan S, Ullah H, Razak S, Rauf N, Khan MJ, Mahboob SZ. Prenatal BPA and its analogs BPB, BPF, and BPS exposure and reproductive axis function in the male offspring of Sprague Dawley rats. Hum Exp Toxicol 2020; 38:1344-1365. [PMID: 31514588 DOI: 10.1177/0960327119862335] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Research in the past has indicated associated long-term and low levels of exposure of bisphenol A (BPA) in early life and neuroendocrine disorders, such as obesity, precocious puberty, diabetes, and hypertension. BPA and its analogs bisphenol B (BPB), bisphenol F (BPF), and bisphenol S (BPS) have been reported to have similar or even more toxic effect as compared to BPA. Exposure of rats to BPA and its analogs BPB, BPF, and BPS resulted in decreased sperm production, testosterone secretion, and histological changes in the reproductive tissues of male rats. In the present study, BPA, BPB, BPF, and BPS were administered in drinking water at concentrations of (5, 25, and 50 μg/L) from pregnancy day (PD) 1 to PD 21. Body weight (BW), hormonal concentrations, antioxidant enzymes, and histological changes were determined in the reproductive tissues. BPA and its analogs prenatal exposure to female rats induced significant statistical difference in the antioxidant enzymes, plasma testosterone, and estrogen concentrations in the male offspring when compared with the control. Histological parameters of both testis and epididymis revealed prominent changes in the reproductive tissues. The present study suggests that BPA and its analogs BPB, BPF, and BPS different concentrations led to marked alterations in the development of the male reproductive system.
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Zahoor M, Ullah A, Alam S. Removal of Enrofloxacin from Water through Magnetic Nanocomposites Prepared from Pineapple Waste Biomass. SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY 2019. [DOI: 10.3103/s1068375519050156] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Iqbal S, Nucifora G, Schmitt M, Ullah A. P115Changing clinical practice of downstream investigations following CTCA; Impact of CTFFR in a large tertiary cardiothoracic centre. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez147.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Iqbal S, Zaki A, Sogliani F, Ullah A. 341Role of cardiac CT in management of PCI related complications. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez138.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Parchin N, Ullah A, Asharaa A, Al-Yasir Y, Basherlou H, Ngala M, Abd-Alhameed R, Noras J. A compact design of orthogonally dual-polarized antenna for ultra-wideband , imaging, and radar applications. ANTENNAS AND PROPAGATION CONFERENCE 2019 (APC-2019) 2019. [DOI: 10.1049/cp.2019.0699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Al-Yasir Y, Parchin N, Rahman ZA, Ullah A, Ali N, Ngala M, Abd-Alhameed R. Compact Tunable Microstrip Filter with Wide-Stopband Restriction and Wide Tuning Range for 4G and 5G Applications. ANTENNAS AND PROPAGATION CONFERENCE 2019 (APC-2019) 2019. [DOI: 10.1049/cp.2019.0692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Umair M, Ullah A, Abbas S, Ahmad F, Basit S, Ahmad W. First direct evidence of involvement of a homozygous loss-of-function variant in the EPS15L1
gene underlying split-hand/split-foot malformation. Clin Genet 2018; 93:699-702. [DOI: 10.1111/cge.13152] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 10/03/2017] [Accepted: 10/05/2017] [Indexed: 11/29/2022]
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Alnahwi F, Abdulhameed A, Abdullah A, Ullah A, Abd-Alhameed R. Mutual Coupling Reduction of a Dual-Band 2×1 MIMO Antenna Using Two Pairs of λ/4 Slots for WLAN/WiMAX Applications. LOUGHBOROUGH ANTENNAS & PROPAGATION CONFERENCE 2018 (LAPC 2018) 2018. [DOI: 10.1049/cp.2018.1431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Wali A, Kumar AMV, Hinderaker SG, Heldal E, Qadeer E, Fatima R, Ullah A, Safdar N, Yaqoob A, Anwar K, Ul Haq M. Pre-treatment loss to follow-up among smear-positive TB patients in tertiary hospitals, Quetta, Pakistan. Public Health Action 2017; 7:21-25. [PMID: 28775939 DOI: 10.5588/pha.16.0118] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Accepted: 01/31/2017] [Indexed: 11/10/2022] Open
Abstract
Setting: Three public sector tertiary care hospitals in Quetta, Balochistan, Pakistan, with anecdotal evidence of gaps between the diagnosis and treatment of patients with tuberculosis (TB). Objectives: To assess the proportion of pre-treatment loss to follow-up (LTFU), defined as no documented evidence of treatment initiation or referral in TB registers, among smear-positive pulmonary TB patients diagnosed in 2015, and the associated sociodemographic factors. Design: A retrospective cohort study involving the review of laboratory and TB registers. Results: Of 1110 smear-positive TB patients diagnosed (58% female, median age 40 years, 5% from outside the province or the country), 235 (21.2%) were lost to follow-up before starting treatment. Pre-treatment LTFU was higher among males; in patients residing far away, in rural areas, outside the province or the country; and in those without a mobile phone number. Conclusion: About one fifth of the smear-positive TB patients were lost to follow-up before starting treatment. Strengthening the referral and feedback mechanisms and using information technology to improve the tracing of patients is urgently required. Further qualitative research is needed to understand the reasons for pre-treatment LTFU from the patient's perspective.
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Ullah A, Mushtaq H, Fahad S, Shah A, Chaudhary HJ. Plant growth promoting potential of bacterial endophytes in novel association with Olea ferruginea and Withania coagulans. Microbiology (Reading) 2017. [DOI: 10.1134/s0026261717010155] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Heald AH, Bhattacharya B, Cooper H, Ullah A, McCulloch A, Smellie S, Wark G. Most commercial insulin assays fail to detect recombinant insulin analogues. Ann Clin Biochem 2016; 43:306-8. [PMID: 16824282 DOI: 10.1258/000456306777695690] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Insulin assays are utilized in various clinical scenarios, including the assessment of insulin therapy compliance or of suspected insulin overdose. In an interpretative exercise carried out by UK National External Quality Assessment Service (NEQAS), serum sent to the participating laboratories was spiked with 30 pmol/L of the short-acting insulin analogue Human Actrapid. Only two out of 24 participant laboratories had sufficient assay cross-reactivity with Actrapid to interpret the results as suggestive of insulin administration. The development of specific insulin assays has led to deterioration in the ability to detect non-compliance or overdose with recombinant insulin treatment. Clinicians should be aware of this significant limitation, which could lead to misdiagnosis.
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Rahim K, Qasim M, Rahman H, Khan TA, Ahmad I, Khan N, Ullah A, Basit A, Saleha S. Antimicrobial resistance among aerobic biofilm producing bacteria isolated from chronic wounds in the tertiary care hospitals of Peshawar, Pakistan. J Wound Care 2016; 25:480-6. [DOI: 10.12968/jowc.2016.25.8.480] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ullah A, Jamal SM, Romey A, Gorna K, Kakar MA, Abbas F, Ahmad J, Zientara S, Bakkali Kassimi L. Genetic Characterization of Serotypes A and Asia-1 Foot-and-mouth Disease Viruses in Balochistan, Pakistan, in 2011. Transbound Emerg Dis 2016; 64:1569-1578. [DOI: 10.1111/tbed.12548] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Indexed: 11/29/2022]
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Ullah A, Kalsoom UE, Umair M, John P, Ansar M, Basit S, Ahmad W. Exome sequencing revealed a novel splice site variant in the ALX1 gene underlying frontonasal dysplasia. Clin Genet 2016; 91:494-498. [PMID: 27324866 DOI: 10.1111/cge.12822] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Revised: 06/11/2016] [Accepted: 06/13/2016] [Indexed: 12/19/2022]
Abstract
Frontonasal dysplasia (FND) is a heterogeneous group of disorders characterized by hypertelorism, telecanthus, broad nasal root, wide prominent nasal bridge, short and wide nasal ridge, broad columella and smooth philtrum. To date one X-linked and three autosomal recessive forms of FND have been reported in different ethnic groups. We sought to identify the gene responsible for FND in a consanguineous Pakistani family segregating the disorder in autosomal recessive pattern. Genome-wide homozygosity mapping using 250KNsp array revealed five homozygous regions in the selected affected individuals. Exome sequencing found a novel splice acceptor site variant (c.661-1G>C: NM_006982.2) in ALX1. Sanger sequencing confirmed the correct segregation of the pathogenic variant in the whole family. Our study concludes that the splice site variant identified in the ALX1 gene causes mild form of FND.
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Aljohar A, AlFaleh H, AlHabib K, Kashour T, Hersi A, Al Habeeb W, Ullah A, Elasfar A. PM092 Prognostic Impact of New-Onset Hyperglycaemia on Clinical Outcomes: Insights From the Heart Function Assessment Registry Trial. Glob Heart 2016. [DOI: 10.1016/j.gheart.2016.03.297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Ali N, Ullah A, Wahid S, Khisroon M, Rasheed SB. Distribution, species composition and relative abundances of sandflies in North Waziristan Agency, Pakistan. MEDICAL AND VETERINARY ENTOMOLOGY 2016; 30:89-94. [PMID: 26582763 DOI: 10.1111/mve.12141] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 07/06/2015] [Accepted: 07/09/2015] [Indexed: 06/05/2023]
Abstract
This study was conducted to investigate the diversity of sandflies (Psychodidae: Phlebotominae) and the incidence of leishmaniasis in three villages of North Waziristan Agency, Pakistan. Sandflies were sampled monthly during 2012, at dusk and dawn, in selected indoor habitats including both bedrooms and animal sheds using a knock-down spray catch method. A total of 3687 sandflies were collected, including 1444 individuals in Drezanda, 1193 in Damdil and 1050 in Dattakhel. This study revealed 14 species of two genera, Phlebotomus (Phlebotomus sergenti, Phlebotomus papatasi, Phlebotomus caucasicus, Phlebotomus kazeruni, Phlebotomus alexandri and Phlebotomus salehi) and Sergentomyia (Sergentomyia dentate, Sergentomyia baghdadis, Sergentomyia babu, Sergentomyia theodori, Sergentomyia sumbarica, Sergentomyia dreyfussitur kestanica, Sergentomyia hogsoni pawlowskyi and Sergentomyia fallax afghanica) (both: Diptera: Psychodidae). Phlebotomus sergenti was the most abundant species (42.1%), followed by S. dentata (17.7%) and S. baghdadis (17.4%). The number of males collected represented about twice that of female flies, and the maximum number was collected in July, followed by August. The determination of the species composition of sandfly populations, seasonal variations, relative abundances and estimations of infection in the vector population may provide information about the dynamics of leishmaniasis transmission that is useful in planning vector control activities.
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Anjum H, Bokhari SG, Khan MA, Awais M, Mughal ZU, Shahzad HK, Ijaz F, Siddiqui MI, Khan IU, Chaudhry AS, Akhtar R, Aslam S, Akbar H, Asif M, Maan MK, Khan MA, Noor A, Khan WA, Ullah A, Hayat MA. Comparative efficacy of Prolene and Prolene-Vicryl composite mesh for experimental ventral hernia repair in dogs. IRANIAN JOURNAL OF VETERINARY RESEARCH 2016; 17:78-83. [PMID: 27822231 PMCID: PMC5090135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 01/02/2016] [Accepted: 02/09/2016] [Indexed: 06/06/2023]
Abstract
In this study, efficacy of two hernia mesh implants viz. conventional Prolene and a novel Prolene-Vicryl composite mesh was assessed for experimental ventral hernia repair in dogs. Twelve healthy mongrel dogs were selected and randomly divided into three groups, A, Band C (n=4). In all groups, an experimental laparotomy was performed; thereafter, the posterior rectus sheath and peritoneum were sutured together, while, a 5 × 5 cm defect was created in the rectus muscle belly and anterior rectus sheath. For sublay hernioplasty, the hernia mesh (Prolene: group A; Prolene-Vicryl composite mesh: group B), was implanted over the posterior rectus sheath. In group C (control), mesh was not implanted; instead the laparotomy incision was closed after a herniorrhaphy. Post-operative pain, mesh shrinkage and adhesion formation were assessed as short term complications. Post-operatively, pain at surgical site was significantly less (P<0.001) in group B (composite mesh); mesh shrinkage was also significantly less in group B (21.42%, P<0.05) than in group A (Prolene mesh shrinkage: 58.18%). Group B (composite mesh) also depicted less than 25% adhesions (Mean ± SE: 0.75 ± 0.50 scores, P≤0.013) when assessed on the basis of a Quantitative Modified Diamond scale; a Qualitative Adhesion Tenacity scale also depicted either no adhesions (n=2), or, only flimsy adhesions (n=2) in group B (composite mesh), in contrast to group A (Prolene), which manifested greater adhesion formation and presence of dense adhesions requiring blunt dissection. Conclusively, the Prolene-Vicryl composite mesh proved superior to the Prolene mesh regarding lesser mesh contraction, fewer adhesions and no short-term follow-up complications.
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Ahmad F, Ansar M, Mehmood S, Izoduwa A, Lee K, Nasir A, Abrar M, Mehmood S, Ullah A, Aziz A, Smith JD, Shendure J, Bamshad MJ, Nicekrson DA, Santos-Cortez RLP, Leal SM, Ahmad W. A novel missense variant in the PNPLA1 gene underlies congenital ichthyosis in three consanguineous families. J Eur Acad Dermatol Venereol 2015; 30:e210-e213. [PMID: 26691440 DOI: 10.1111/jdv.13540] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ullah S, Khan AZ, Ullah A, Muhammad S, Iqbal Z, Ali Z, Shah SM, Siddiq M, Hussain H. Synthesis and characterization of pentablock copolymers based on Pluronic® L64 and poly(methyl methacrylate). POLYMER SCIENCE SERIES B 2015. [DOI: 10.1134/s1560090415070052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Coronado M, Ullah A, Silva L, Chaves-Moreira D, Vuitika L, Chaim O, Veiga S, Chahine J, Murakami M, Arni R. Structural Insights into Substrate Binding of Brown Spider Venom Class II Phospholipases D. Curr Protein Pept Sci 2015; 16:768-74. [DOI: 10.2174/1389203716666150505231625] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 12/16/2014] [Accepted: 12/22/2014] [Indexed: 11/22/2022]
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Ullah A, Habib M, Khan S, Ahmad M, Starov V. Membrane oscillation and oil drop rejection during produced water purification. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.02.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Farooq U, Latif A, Irshad H, Ullah A, Zahur AB, Naeem K, Khan SUH, Ahmed Z, Rodriguez LL, Smoliga G. Loop-mediated isothermal amplification (RT-LAMP): a new approach for the detection of foot-and-mouth disease virus and its sero-types in Pakistan. IRANIAN JOURNAL OF VETERINARY RESEARCH 2015; 16:331-334. [PMID: 27175198 PMCID: PMC4782670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 04/11/2015] [Accepted: 06/30/2015] [Indexed: 06/05/2023]
Abstract
Successful disease management requires a rapid and sensitive diagnosis method that can recognize early infection even before the manifestation of its clinical signs. The only available field diagnostic tests for foot-and-mouth disease (FMD) are lateral flow devices, commonly known as chromatographic strips. Low sensitivity and inability to detect FMD virus (FMDV) at the serotype level are limitations of lateral flow devices. Therefore, a reverse transcriptase loop-mediated isothermal amplification (RT-LAMP) was standardized using universal and sero-type specific genes in a single tube. This test does not require sophisticated equipment and can detect FMDV at serotype level in about 60 min. In addition, the sensitivity and specificity of this test is comparable to conventional reverse transcriptase PCR and real time PCR (rRT-PCR).
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Ullah A, Sabeeh K. Optical conductivity of topological insulator thin films in a quantizing magnetic field. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2014; 26:505303. [PMID: 25419699 DOI: 10.1088/0953-8984/26/50/505303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We determine the optical response of topological insulator thin films in the presence of a quantizing, external magnetic field. We explicitly take into account hybridization between the states of top and bottom surface. The interplay between hybridization and Zeeman energies gives rise to topological and normal insulator phases and phase transitions between them. The optical response in the two phases and at the phase transition point is investigated. We show that the difference in magneto-optical response can be used to distinguish the topological phase from the normal phase of the system. Further, the optical response also allows us to determine the gap generated by hybridization between top and bottom surface states of topological insulator thin films.
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Ullah A, Holdich R, Naeem M, Khan S, Starov V. Prediction of size distribution of crude oil drops in the permeate using a slotted pore membrane. Chem Eng Res Des 2014. [DOI: 10.1016/j.cherd.2014.02.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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