5 results on '"Sultan T."'
Search Results
2. Hematological parameters in a population of male bakers exposed to high heat work environment
- Author
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Sultan T. Al-Otaibi
- Subjects
Male ,Multidisciplinary ,Cross-Sectional Studies ,Hot Temperature ,Occupational Exposure ,Humans ,Humidity ,Heat Stress Disorders ,Workplace - Abstract
Objectives The aim of this study was to determine the hematological changes associated with heat exposure in a population of bakers. Materials and methods Personal information was collected using a questionnaire, and a venous blood sample was drawn at the end of a work shift from the bakers and from a control group. The average wet-bulb globe temperature (WBGT) index was measured in the workplaces of both the bakers and the controls. Results This cross-sectional study involved 137 bakers working in 20 bakeries and 107 controls who were comparable in terms of likely confounding factors. Hemoglobin and platelet values were abnormal among the bakers and statistically significantly different to the control group (P = 0.026, and P = 0.016 respectively). The average WBGT index in the bakeries was 37.4°C, while the average WBGT in the workplaces of the controls was 25.5°C, (P Conclusions The changes in the bakers’ hematological parameters were found to be associated with exposure to high environmental heat at bakeries, as measured by the WBGT index. Preventive measures should be introduced to reduce the adverse effect of heat exposure among bakers and directed toward the worker–equipment–environment triad.
- Published
- 2022
3. The 3' UTR polymorphisms rs3742330 in DICER1 and rs10719 in DROSHA genes are not associated with primary open-angle and angle-closure glaucoma: As case-control study.
- Author
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Kondkar AA, Azad TA, Sultan T, Osman EA, Almobarak FA, Lobo GP, and Al-Obeidan SA
- Subjects
- Humans, 3' Untranslated Regions genetics, Genetic Predisposition to Disease, Case-Control Studies, Retrospective Studies, Polymorphism, Single Nucleotide, Intraocular Pressure, Ribonuclease III genetics, DEAD-box RNA Helicases genetics, Glaucoma, Open-Angle genetics, Glaucoma, Open-Angle epidemiology, Glaucoma, Angle-Closure genetics
- Abstract
Aim: In a retrospective and exploratory case-control study, we examined the genetic association of two common polymorphisms in the 3' untranslated region (UTR) of DICER1 (rs3742330) and DROSHA (rs10719) genes in primary open-angle glaucoma (POAG) and primary angle-closure glaucoma (PACG), and its related clinical phenotypes in a Saudi cohort., Methods: DNA genotyping was performed using TaqMan real-time PCR assays in 500 participants, including 152 POAG, 102 PACG, and 246 non-glaucomatous controls. Statistical analyses were performed to examine the association(s)., Results: Allele and genotype frequency of rs3742330 and rs10719 did not vary significantly in POAG and PACG compared to controls. No significant deviation was observed from Hardy-Weinberg Equilibrium (p > 0.05). Gender stratification revealed no significant allelic/genotype association with glaucoma types. Also, these polymorphisms showed no significant genotype effect on clinical markers such as intraocular pressure, cup/disc ratio, and the number of antiglaucoma medications. Logistic regression showed no effect of age, sex, rs3742330, and rs10719 genotypes on the risk of disease outcome. We also examined a combined allelic effect of rs3742330 (A>G) and rs10719 (A>G). However, none of the allelic combinations significantly affected POAG and PACG., Conclusions: The 3' UTR polymorphisms rs3742330 and rs10719 of DICER1 and DROSHA genes are not associated with POAG and PACG or its related glaucoma indices in this Middle-Eastern cohort of Saudi Arab ethnicity. However, there is a need to validate the results on a broader population and other ethnicities., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2023 Kondkar et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2023
- Full Text
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4. Cow dung putrefaction via vermicomposting using Eisenia fetida and its influence on seed sprouting and vegetative growth of Viola wittrockiana (pansy).
- Author
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Shafique I, Andleeb S, Naeem F, Ali S, Tabassam T, Sultan T, and Almas Abbasi M
- Subjects
- Animals, Female, Cattle, Feces chemistry, Seeds, Manure analysis, Soil, Viola, Oligochaeta
- Abstract
The current research was conducted at Vermi-tech Unit, Muzaffarabad in 2018 to evaluate the efficacy of cow dung and vermicompost on seed sprouting, seedlings, and vegetative developmental parameters of Viola x wittrokiana (pansy). In the current study, vermicompost was produced using Eisenia fetida. Physicochemical parameters of vermicompost and organic manure were recorded before each experimentation. The potting experiment was designed and comprised of eight germination mediums containing different combinations of soil, sand, cow dung, and various concentrations of vermicompost such as 10% VC, 15% VC, 20% VC, 25% VC, 30% VC, and 35% VC. Seed sprouting and seedling developmental parameters were observed for 28 days while vegetative plant growth parameters were recorded after 10 weeks of transplantation in various vermicompost amended germination media. Pre and post-physicochemical analysis of germination media were also recorded to check their quality and permanency. The current findings showed that 30% VC germination media was an effective dose for early seed germination initiation and all seed germination parameters. However, the significant vegetative plant growth and flowering parameters of pansy occurred at 35% VC. Findings revealed that vermicompost not only enhanced the seed germination and growth of pansy but also improved soil health. These results indicate that vermicompost can be exploited as a potent bio-fertilizer for ornamental plant production., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2023 Shafique et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2023
- Full Text
- View/download PDF
5. Association of endothelial nitric oxide synthase (NOS3) gene polymorphisms with primary open-angle glaucoma in a Saudi cohort.
- Author
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Kondkar AA, Azad TA, Sultan T, Osman EA, Almobarak FA, and Al-Obeidan SA
- Subjects
- Age Factors, Aged, Case-Control Studies, Female, Glaucoma, Open-Angle enzymology, Glaucoma, Open-Angle epidemiology, Humans, Male, Middle Aged, Risk Factors, Saudi Arabia epidemiology, Sex Factors, Alleles, Gene Frequency, Glaucoma, Open-Angle genetics, Haplotypes, Nitric Oxide Synthase Type III genetics, Polymorphism, Genetic
- Abstract
Aim: To investigate the association of endothelial nitric oxide synthase (NOS3) gene polymorphisms in patients with primary open-angle glaucoma (POAG) of Saudi origin., Methods: This case-control study included 173 patients with POAG (94 men and 79 women) and 171 controls (98 men and 73 women). Genotyping of rs2070744 (T-786C) and rs1799983 (G894T) variants of the NOS3 gene was performed using TaqMan® assay., Results: Rs1799983 genotypes showed a significant association with POAG but did not survive Bonferroni correction (pcorrection = 0.01). The minor 'T' allele was significantly associated with the risk of POAG among men (p = 0.025, odds ratio (OR) = 1.77, 95% confidence interval (CI) = 1.07-2.94). Likewise, the genotypes were significantly associated with POAG among men in dominant (p = 0.030, OR = 1.92, 95% CI = 1.06-3.48) and log-additive models (p = 0.022, OR = 1.82, 95% CI = 1.08-3.07), and after adjustment for age and smoking. Genotype and allele frequencies of rs2070744 were not significantly different between POAG cases and controls, and after sex stratification. CG haplotype was significantly protective (p = 0.011, OR = 0.52, 95% CI = 0.32-0.87) and CT haplotype conferred significantly increased risk of POAG (p = 0.016, OR = 2.60, 95% CI = 1.16-5.82) among men. Rs1799983 showed trend (p = 0.054) towards risk of POAG independent of age, gender, smoking, and rs2070744 polymorphism in logistic regression analysis. Both the polymorphisms showed no association with POAG phenotypes such as intraocular pressure and cup/disc ratio., Conclusion: Our results suggest that the polymorphism rs1799983 and the haplotypes of rs20707440 and rs1799983 in the NOS3 gene may significantly modulate the risk of POAG in Saudi's, particularly among men. Further larger studies are needed to confirm these findings., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2020
- Full Text
- View/download PDF
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