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Kuchay RA, Thapa BR, Mahmood A, Mahmood S. Screening for lactase persistence associated genotypes in cattle domestication groups of northern India. MEDITERRANEAN JOURNAL OF NUTRITION AND METABOLISM 2015. [DOI: 10.3233/mnm-150030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kuchay RAH, Thapa BR, Mahmood A, Anwar M, Mahmood S. Lactase genetic polymorphisms and coeliac disease in children: a cohort study. Ann Hum Biol 2014; 42:101-4. [DOI: 10.3109/03014460.2014.944216] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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78
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Khan H, Maheen S, Alamgeer GA, Mahmood A, Sarfraz RM, Ashraf Z, Khalil M, Malik MNH. Determinants of Increasing Trend of Self-Medication in a Pakistani Community. TROP J PHARM RES 2014. [DOI: 10.4314/tjpr.v13i3.19] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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79
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Mahmood A, Ullah S, Finch CF. APPLICATION OF SURVIVAL MODELS IN SPORTS INJURY PREVENTION RESEARCH: A SYSTEMATIC REVIEW. Br J Sports Med 2014. [DOI: 10.1136/bjsports-2014-093494.190] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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80
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Mahmood A, Khan I, Razzaq S, Najam Z, Khan N, Rehman M, Javaid N. Home Appliances Coordination Scheme for Energy Management (HACS4EM) Using Wireless Sensor Networks in Smart Grids. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.procs.2014.05.449] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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81
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Mahmood A, Ullah M, Razzaq S, Basit A, Mustafa U, Naeem M, Javaid N. A New Scheme for Demand Side Management in Future Smart Grid Networks. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.procs.2014.05.450] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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82
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Nazeer W, Ahmad S, Mahmood K, Tipu A, Mahmood A, Zhou B. Introgression of genes for cotton leaf curl virus resistance and increased fiber strength from Gossypium stocksii into upland cotton (G. hirsutum). GENETICS AND MOLECULAR RESEARCH 2014; 13:1133-43. [DOI: 10.4238/2014.february.21.2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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83
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Chauhan SS, Mahmood A, Ojha S. Ethanol and age enhances fluoride toxicity through oxidative stress and mitochondrial dysfunctions in rat intestine. Mol Cell Biochem 2013; 384:251-62. [DOI: 10.1007/s11010-013-1804-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2013] [Accepted: 08/30/2013] [Indexed: 01/24/2023]
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84
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McVeigh TP, Lowery AJ, Waldron RM, Mahmood A, Barry K. Assessing awareness of colorectal cancer symptoms and screening in a peripheral colorectal surgical unit: a survey based study. BMC Surg 2013; 13:20. [PMID: 23799887 PMCID: PMC3695798 DOI: 10.1186/1471-2482-13-20] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2012] [Accepted: 06/14/2013] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND The National Screening Program for colorectal cancer is scheduled to commence in the near future. Previous studies on the topic of colorectal cancer and screening have highlighted paucity in public awareness of epidemiology, symptoms and signs of colorectal cancer. The aim of this study was to assess understanding of colorectal cancer and screening in a representative sample of the local catchment population of Mayo General Hospital. METHODS A prospective cohort study was instituted utilising an anonymous survey, which was distributed at consecutive general surgical out-patient clinics over a one month period prior to initiation of the screening program. Data collected included demographics, presenting complaint type and duration, and general knowledge of colorectal cancer facts. Attitudes towards screening were also evaluated. RESULTS Eighty-eight of the one hundred and thirty six patients sampled were female (65%). Thirty-six per cent of the sample was within the screening target age-group (55-74), with mean age 53 years (+/-18). Most respondents recognised bleeding per rectum as a possible symptom of colorectal cancer. A significant proportion, however, incorrectly selected less sinister symptoms as concerning, while only fifty per cent correctly cited weight loss. Family history was acknowledged as a risk factor by fifty-seven per cent with age and gender cited less often (29%, 4%), while forty-seven per cent incorrectly cited stress as a risk. Screening was defined as testing of symptomatic patients or those with a positive family history by eighty-one per cent of respondents, with only nineteen per cent associating screening with an asymptomatic cohort. Strikingly, twenty-five per cent of patients would decline screening. CONCLUSIONS There remains poverty of awareness regarding colorectal cancer. More public health initiatives are required to help improve understanding of the disease process, and to improve public compliance with the screening initiative.
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Fujisaka S, Usui I, Ikutani M, Aminuddin A, Takikawa A, Tsuneyama K, Mahmood A, Goda N, Nagai Y, Takatsu K, Tobe K. Adipose tissue hypoxia induces inflammatory M1 polarity of macrophages in an HIF-1α-dependent and HIF-1α-independent manner in obese mice. Diabetologia 2013; 56:1403-12. [PMID: 23494472 DOI: 10.1007/s00125-013-2885-1] [Citation(s) in RCA: 161] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 02/26/2013] [Indexed: 12/19/2022]
Abstract
AIMS/HYPOTHESIS As obesity progresses, adipose tissue exhibits a hypoxic and inflammatory phenotype characterised by the infiltration of adipose tissue macrophages (ATMs). In this study, we examined how adipose tissue hypoxia is involved in the induction of the inflammatory M1 and anti-inflammatory M2 polarities of ATMs. METHODS The hypoxic characteristics of ATMs were evaluated using flow cytometry after the injection of pimonidazole, a hypoxia probe, in normal-chow-fed or high-fat-fed mice. The expression of hypoxia-related and inflammation-related genes was then examined in M1/M2 ATMs and cultured macrophages. RESULTS Pimonidazole uptake was greater in M1 ATMs than in M2 ATMs. This uptake was paralleled by the levels of inflammatory cytokines, such as TNF-α, IL-6 and IL-1β. The expression level of hypoxia-related genes, as well as inflammation-related genes, was also higher in M1 ATMs than in M2 ATMs. The expression of Il6, Il1β and Nos2 in cultured macrophages was increased by exposure to hypoxia in vitro but was markedly decreased by the gene deletion of Hif1a. In contrast, the expression of Tnf, another inflammatory cytokine gene, was neither increased by exposure to hypoxia nor affected by Hif1a deficiency. These results suggest that hypoxia induces the inflammatory phenotypes of macrophages via Hif1a-dependent and -independent mechanisms. On the other hand, the expression of inflammatory genes in cultured M2 macrophages treated with IL-4 responded poorly to hypoxia. CONCLUSIONS/INTERPRETATION Adipose tissue hypoxia induces an inflammatory phenotype via Hif1a-dependent and Hif1a-independent mechanisms in M1 ATMs but not in M2 ATMs.
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Chauhan SS, Ojha S, Mahmood A. Effects of fluoride and ethanol administration on lipid peroxidation systems in rat brain. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 2013; 51:249-255. [PMID: 23678546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Exposure to fluoride and excessive ethanol consumption has been identified as a serious public health problem in many parts of the world, including India. Thus, the effect of co-exposure to fluoride and ethanol for 3-6 weeks was studied on lipid peroxidation (LPO) and oxidative stress related parameters in the rat brain. After 3 weeks, co-treated animals showed 95% increase in LPO levels compared to control. However, the levels of reduced glutathione, total and protein thiols were decreased. These changes were accompanied by a decrease in the activities of superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase and glutathione-S-transferase. Rats exposed to fluoride together with ethanol for 6 weeks resulted in 130% increase in LPO and decrease in the reduced glutathione levels. The activities of superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase and glutathione-S-transferase were reduced under these conditions. Brain histology revealed excessive lymphocytes, edema and spongeosis in the cortical region after six weeks of fluoride and ethanol treatment. These results suggest that exposure to fluoride together with ethanol enhances lipid peroxidation by affecting antioxidant defence systems in the rat brain.
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Alvi Z, Mahmood A, Ali U, Rasul S, Arif S, Maqsood T, Ahmed S, Ishtiaq S. EP-1011: Therapeutic effects of whole brain radiotherapy with carboplatin in management of brain metastasis. Radiother Oncol 2013. [DOI: 10.1016/s0167-8140(15)33317-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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88
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Riaz M, Farooq J, Sakhawat G, Mahmood A, Sadiq MA, Yaseen M. Genotypic variability for root/shoot parameters under water stress in some advanced lines of cotton (Gossypium hirsutum L.). GENETICS AND MOLECULAR RESEARCH 2013; 12:552-61. [PMID: 23512672 DOI: 10.4238/2013.february.27.4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Research pertaining to genetic variability parameters, heritability, and genotypic, phenotypic, simple, and environmental correlations for various seedling traits in five elite advanced cotton (Gossypium hirsutum L.) lines (FH-113, FH-114, FH-941, FH-942, and FH-2015) and one check (CIM-496) was carried out during October and November 2010 under greenhouse conditions at the Cotton Research Institute (Faisalabad, Pakistan). Material was raised in plastic tubes with a randomized complete block design replicated three times. Three drought shocks were applied by withholding water from the tube-sown plants for 8-, 10-, and 12-day intervals. After 60 days of sowing, data on root/shoot traits like root length (cm), shoot length (cm), root weight (g), shoot fresh weight (g), lateral root number, root dry weight (g) shoot dry weight (g), and total plant weight (g) were recorded. Considerable genotypic variations existed between genotypes for all seedling characters. Higher broad-sense heritability estimates were found for all traits studied. Maximum broad-sense heritability coupled with high genetic advance in root length (0.99, 17.34), lateral root number (0.91, 2.89), and shoot length (0.90, 4.35) suggested a potential for genetic improvement through breeding and selection. The correlation coefficients among root length, shoot length, root dry weight, fresh shoot weight, and total plant weight were positively and significantly correlated; thus, they can be selected simultaneously as drought tolerance selection indexes owing to the absence of undesired relationships. Genotypes FH-942 and FH-113 had the lowest excised leaf water loss during the first 4 h and also for the next 4 h. Therefore, these two advanced lines (FH-942 and FH-113) with high initial water content and lower excised leaf water loss had better adaptation to water stress.
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Alvi Z, Mahmood A, Rasool S, Ali U, Arif S, Ishtiaq S, Maqsood T. PO-107: Role of Honey in Prevention of Radiation Induced Mucositis in Head and Neck Cancer. Radiother Oncol 2013. [DOI: 10.1016/s0167-8140(15)34726-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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90
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Goyal D, Sharma S, Mahmood A. Inhibition of dextransucrase activity in Streptococcus mutans by plant phenolics. INDIAN JOURNAL OF BIOCHEMISTRY & BIOPHYSICS 2013; 50:48-53. [PMID: 23617074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Streptococcus mutans is responsible for causing dental caries in humans and utilizes sucrose for its growth. The dextransucrase (EC 2.4.1.5) is responsible for sucrose metabolism, which exhibits both hydrolytic and glucosyltransferase activities. In this study, we examined the effects of the plant phenols, namely gallic, tannic and syringic acids and aqueous extracts of certain traditionally used chewing sticks (Acacia arabica, Azadirachta indica, Pongamia pinnata and Salvadora persica) for prevention of dental caries on hydrolytic activity of dextransucrsae in S. mutans. Gallic acid (4-5 mM) produced 80-90% inhibition of the enzyme, while tannic acid (0.2 mM) and syringic acid (5 mM) inhibited the enzyme activity 80% and 48%, respectively in vitro. The aqueous extracts of chewing sticks produced 35-40% inhibition of dextransucrase activity at 5 mg phenol concentration. Kinetic analysis revealed mixed-type of enzyme inhibition by polyphenols, where both K(m) and V(max) were altered. The value of K(i) for tannic, gallic and syringic acids were 0.35, 1.6 and 1.94 mM, respectively. The enzyme inhibition by polyphenols was optimum at pH 7-7.5, while by plant extract was maximum at pH 5-6. These results suggest that plant polyphenols may find potential applications in the prevention and control of dental caries by inhibiting dextransucrase activity in S. mutans.
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Sugrue C, Hogan A, Robertson I, Mahmood A, Khan WH, Barry K. Incisional hernia appendicitis: A report of two unique cases and literature review. Int J Surg Case Rep 2012; 4:256-8. [PMID: 23333806 DOI: 10.1016/j.ijscr.2012.12.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 12/06/2012] [Accepted: 12/12/2012] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION Acute appendicitis is a common surgical emergency. The presence of an inflamed appendix in an incisional hernia is rare. Incisional hernias complicate both open and laparoscopic surgery. PRESENTATION OF CASE We describe two unique cases of acute appendicitis within incisional hernias following an open cholecystectomy and a diagnostic laparoscopy. Acute appendicitis was diagnosed intraoperatively and a formal appendicectomy was performed with subsequent primary repair of the hernial defect in each case. DISCUSSION The method chosen for primary repair of an incisional hernia containing an acutely inflamed appendix depends on a number of factors including size of hernial defect and degree of contamination. Closure of 5mm port sites is not routine in current surgical practice. Herniation of intra-abdominal contents through such defects can occur rarely. The repair of an incisional hernia using mesh in a contaminated surgical field is controversial. There may be advantages in the use of biological meshes. CONCLUSION Surgical awareness of potential complications relating to the management of incisional hernia appendicitis is of primary importance in determining intraoperative strategy.
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Vir P, Kaur J, Mahmood A. Effect of chronic iron ingestion on the development of brush border enzymes in rat intestine. Toxicol Mech Methods 2012; 17:393-9. [PMID: 20020942 DOI: 10.1080/15376510601102793] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
ABSTRACT Iron is an essential element for biological systems. There is increasing evidence that excess iron supplementation results in the deposition of iron in the duodenum and enhances mucosal injury and cell proliferation in the colon and cecum. In the present study we examined whether chronic exposure to high levels of iron fortification affects the functional integrity of the small intestine, especially the activities of various brush border enzymes. Wistar rats were fed iron 29 mg/kg body weight (or 6.58 mg/kg Fe) daily in the form of FeSO(4).7H(2)O for 39 days. The activities of brush border alkaline phosphatase (AP) (p < 0.001), sucrase (p < 0.01), maltase (p < 0.05), lactase (p < 0.05), and trehalase (p < 0.001) were reduced in purified membranes in iron-fed animals compared to controls. However, the activities of leucine amino peptidase (LAP) and gamma-glutamyl transpeptidase (gamma-GTP) were unaffected under these conditions. Analysis of alkaline phosphatase activity across the crypt-villus unit revealed a significant decrease (p < 0.05) all across the crypt-villus length, while sucrase activity was reduced (p < 0.01) only in the midvillus axis in iron-exposed animals. Kinetic studies showed a decrease in V(max) of AP from 1.11 to 0.83 units/mg protein and for sucrase from 0.77 to 0.43 units/mg protein in iron-fed rats, with no change in the apparent K(m) of the enzymes (AP, 8 mM; sucrase, 10 mM). Western blot analysis corroborated these findings. These results indicate that chronic iron exposure alters the activities of brush border enzymes, resulting in intestinal dysfunctions.
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Duran I, Mahmood A, Hoefeler H, Ghazal H, Lueftner D, Fink M, Bahl A, Hechmati G, Wei R, Atchison C. Burden of Skeletal-Related Events (SRES) in Patients (PTS) with Solid Tumors: Results of the Stars Observational Study in the US vs EU. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33973-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Kuchay RAH, Anwar M, Thapa BR, Mahmood A, Mahmood S. Correlation of G/A -22018 single-nucleotide polymorphism with lactase activity and its usefulness in improving the diagnosis of adult-type hypolactasia among North Indian children. GENES AND NUTRITION 2012; 8:145-51. [PMID: 22763774 DOI: 10.1007/s12263-012-0305-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Accepted: 06/15/2012] [Indexed: 11/24/2022]
Abstract
Adult-type hypolactasia (AtH or lactase non-persistence) is the physiological decline in lactase activity that manifests in majority of the world's population after weaning. Recently, various single-nucleotide polymorphisms (SNPs) upstream of lactase gene (LCT) have been suggested to be associated with AtH or the lactase persistent trait in different human populations. C/T -13910 SNP was found be completely associated with AtH in Finnish population, and G/A -22018 SNP was found to be strongly, but not completely, associated with AtH. The aim of this study was to correlate G/A -22018 SNP with intestinal lactase activity in North Indian children. These children were also genotyped for C/T -13910 SNP. We also examined the differences in milk consumption and milk-related clinical symptoms in children with different genotypes of G/A -22018 and C/T -13910 SNPs. Intestinal biopsies were obtained from 231 children aged 2-16 years undergoing routine endoscopy for various abdominal complaints. The biopsies were assayed for lactase, sucrase, and maltase activities and genotyped for G/A -22018 and C/T -13910 SNPs using restriction fragment length polymorphism and DNA sequencing analysis. There was a significant correlation between lactase activity and different genotypes of G/A -22018 SNP. Children with G/G -22018 genotype had low lactase activity. With a reference value of <10 U/g protein (lactase activity) to be indicative of AtH, the sensitivity and specificity of genetic test based on G/A -22018 SNP was 94.4 and 94.1 %, respectively. Furthermore, the consumption of milk was lower in children with G/G -22018 genotype. Flatulence was the only symptom significantly more frequent among the children with G/G -22018 genotype compared to those with G/A and A/A -22018 genotypes. However, most of the children with G/G -22018 genotype seem to tolerate small amounts of milk without any significant difference in gastrointestinal symptoms from those with G/A and A/A -22018 genotypes.
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Mahmood A, Petrie MC, Wong C, Davie AP. 016 Young patients with heart failure often do not have major ECG abnormalities. BRITISH HEART JOURNAL 2012. [DOI: 10.1136/heartjnl-2012-301877b.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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96
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Usman M, Ahmad M, Dayo A, Madn A, Ali L, Yousuf M, Khan MA, Munir A, Sohail M, Mahmood A. Effect of β-Glucuronidase on Extraction Efficiency of Silymarin from Human Plasma Samples Using Validated HPLC-UV Analysis. TROP J PHARM RES 2012. [DOI: 10.4314/tjpr.v11i1.11] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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97
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Mahmood A, Mallet P, Veuillen JY. Quasiparticle scattering off phase boundaries in epitaxial graphene. NANOTECHNOLOGY 2012; 23:055706. [PMID: 22236944 DOI: 10.1088/0957-4484/23/5/055706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We investigate the electronic structure of terraces of single layer graphene (SLG) by scanning tunnelling microscopy (STM) on samples grown by thermal decomposition of 6H-SiC(0001) crystals in ultra-high vacuum. We focus on the perturbations of the local density of states (LDOS) in the vicinity of edges of SLG terraces. Armchair edges are found to favour intervalley quasiparticle scattering, leading to the (√3 x √3)R30° LDOS superstructure already reported for graphite edges and more recently for SLG on SiC(0001). Using the Fourier transform of LDOS images, we demonstrate that the intrinsic doping of SLG is responsible for a LDOS pattern at the Fermi energy which is more complex than for neutral graphene or graphite, since it combines local (√3 x √3)R30° superstructure and long range beating modulation. Although these features have already been reported by Yang et al (2010 Nano Lett. 10 943-7) we propose here an alternative interpretation based on simple arguments classically used to describe standing wave patterns in standard two-dimensional systems. Finally, we discuss the absence of intervalley scattering off other typical boundaries: zig-zag edges and SLG/bilayer graphene junctions.
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Nazar M, Mahmood A, Athar M, Kamran M. ANALYTIC SOLUTIONS FOR THE UNSTEADY LONGITUDINAL FLOW OF AN OLDROYD-B FLUID WITH FRACTIONAL MODEL. CHEM ENG COMMUN 2012. [DOI: 10.1080/00986445.2011.590164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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99
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Sharma R, Chauhan SS, Mahmood A. Modulation of intestinal brush border membrane chemical composition during postnatal development in rats: effect of gestational diabetes. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 2012; 50:45-50. [PMID: 22279940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
There was a significant increase in fucose (52%), total hexoses (16%) and hexosamine (56%) except sialic acid, which was reduced (77%) in the microvillus membrane of infants born to rat mothers made diabetic by injecting alloxan on day 3 of gestation. Expressed on the protein basis there were a significant increase in membrane, triglyceride, total cholesterol, and phospholipids content of brush border in pups from diabetic group between 5-45 days of postnatal age. Intestinal morphology in diabetic group showed, regression of tubular glands, distorted cellular organization of mucosal cells, reduction in the mucosal cell height and number of secretory goblet cells. These findings suggest that the gestational diabetes affects the sugar and lipid composition of the intestinal brush border membrane in rats during early stages of the postnatal development, which may be associated with compromised tissue functions later in life.
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Yates P, Mahmood A. External rotation of the draining vein improves flow in arteriovenous fistulas. Ann R Coll Surg Engl 2011. [PMID: 22041247 DOI: 10.1308/003588411x13165261994238b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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