1.Human papillomavirus (HPV) in Egyptian females: study by cytology, histopathology, colposcopy and molecular diagnosis of high risk types
Mona Abdelbadiaa ; Olfat G Shaker ; Hala N Hosni ; Sara E Khalifa ; Ahmed F Shazly
The Malaysian Journal of Pathology 2016;38(3):257-266
Objectives: In Northern Africa, the region Egypt belongs to, about 10.7% of women are estimated to
harbour cervical human papillomavirus (HPV) infection and 78.4% of invasive cancers are attributed to
HPVs 16 or 18. We aimed at comparing HPV detection by ISH-PCR tissue with other conventional
available cheaper techniques, finding which of them can be relied upon in a developing country like
Egypt for HPV detection. Methods: Sixty patients were included. For them colposcopy, PAP smear,
histopathology and detection of HPV using ISH PCR tissue and PCR swab were achieved. Results:
PCR-ISH tissue was positive in 53.33%, 46.6% were negative. Pap smear was negative in 26 cases
(43.33%) and 43 cases (56.67%) were positive. LSIL with perinuclear halo represented nearly half of
the positive cases (16/34; 47.05%), 10 cases were diagnosed as HSIL, 4 cases as ASCUS and 4 as AGC.
Histopathology was negative in 12 (20%) cases and 48 (80%) cases were positive. CIN I and CIN I+
koliocytosis represented half of the cases (30/60) and more than half of positive cases (30/48; 62.5%).
Comparing the results of pap smear, histopathology, colposcopy and PCR swab with ISH PCR tissue,
highly significant results were seen with sensitivity of 87.5%, 100%, 62.5% and 56.2% respectively but
the specificity were 78.6%, 42.9%, 28.6% and 100% respectively. Conclusion: Conventional cytology
and histopathology were sensitive tests for detection of HPV. This may help for early detection of
cancer cervix in a developing country like Egypt. PCR swab showed the highest specificity and the
lowest sensitivity.
2.Non-nutritive sucking habits among preschool children in southern Saudi Arabia: A cross-sectional study
Abdulaziz Al-Shahrani ; Syed Mohammed Yaseen ; Rafi Ahmed Togoo ; Alaa Al-Qarni ; Haifa Al-Faifi ; Sara Al-Asmari ; Jamilah Mashiki
Archives of Orofacial Sciences 2017;12(2):86-94
Prolonged non-nutritive sucking habits have negative effects on child’s orofacial structures, physical,
social and psychological wellbeing. The objectives of the present study were (1) to determine the prevalence of
non-nutritive sucking habit in Saudi preschool children, (2) to assess the factors influencing the habit, (3) to
determine mothers’ view on causes of non-nutritive sucking and their reasons to stop the habit and (4) to report
methods used by the mothers in eliminating the habit. This cross-sectional observational study was conducted in
the kindergartens in Abha and Khamis Mushayt cities. The sample included parents of 328 male and female
preschool children. A pre-piloted self-administered questionnaire was used for data collection and the response
rate was 85.4%. The prevalence of non-nutritive sucking habit was 46.6%; of these, pacifier sucking was 30.2%
and digit sucking was 16.4%. There were significant differences with pacifier habit between mother’s educational
status and sex (p=0.008 and p=0.002 respectively). The odds of pacifier habit were higher in females [OR=2.14,
95% CI (1.32, 2.52)] and mothers with higher university education [OR=1.67, 95% CI (1.03, 2.72)]. There were
significant differences with digit sucking habit and mothers’ educational status (p=0.022). The odds of digit
sucking habit was higher in mothers with intermediate and secondary education [OR=2.25, 95% CI (1.24, 4.07)].
Some mothers (37.90%) used non-nutritive sucking as solution to calm the crying child, while others (47.05%)
wanted to stop the habit as it might affect the child’s dentition. Some mothers (37%) interrupted the habit
physically, while only 10% had preferred to consult the dentist.
Fingersucking
3.Development of new lateral-flow immunochromatographic strip using colloidal gold and mesoporous silica nanoparticles for rapid diagnosis of active schistosomiasis
Kamel MANAL ; Salah FATEN ; Demerdash ZEINAB ; Maher SARA ; Atta SHIMAA ; Badr ABEER ; Afifi AHMED ; Baz El HANAN
Asian Pacific Journal of Tropical Biomedicine 2019;9(8):315-322
Objective: To develop a new sandwich based lateral flow immunochromatographic strip for rapid detection of circulating Schistosoma mansoni antigen in serum and urine samples of patients with active schistosomiasis. Methods: This lateral flow immunochromatographic strip was prepared by using anti-Schistosoma mansoni soluble egg antigen monoclonal antibody conjugated gold nanoparticles (MAb-AuNPs) as antigen-detecting antibody, while crystalline material (MCM)-41-MAb bioconjugate was immobilized at the test line as antigen-capturing antibody. Both antigen capturing and detecting antibodies formed sandwich complexes with circulating Schistosoma mansoni antigen in the positive samples. Sandwich complexes immobilized at the test line gave distinct red color. The assay reliability was examined by using urine and serum samples of 60 Schistosoma mansoni infected patients, 20 patients infected with parasites other than Schistosoma, and 20 healthy individuals as negative controls. Results were compared with those obtained via sandwich enzyme linked immunosorbent assay (ELISA). Results: The detection limit of circulating Schistosoma mansoni antigen by lateral flow immunochromatographic strip was lower (3 ng/mL) than the detection limit by ELISA (30 ng/mL). The sensitivity and specificity of lateral flow immunochromatographic strip in urine samples were 98.3% and 97.5%, respectively compared to 93.5% and 90.0% by ELISA. In serum samples, they were 100.0% and 97.5%, respectively compared to 97.0% and 95.0% by ELISA. The strip test took approximately 10 min to complete. Conclusions: This new lateral flow immunochromatographic strip offers a sensitive, rapid, and field applicable technique for diagnosis of active schistosomiasis.
4.Prevalence of diffuse idiopathic skeletal hyperostosis among elderly subjects referred for radiological investigation in tertiary hospital at Oman.
Srinivasa Rao SIRASANAGANDLA ; Humoud AL DHUHLI ; Ahmed AL ABRI ; Ahmed SALMI ; Sathish Kumar JAYAPAL ; Crosetto SARA ; Sanjay JAJU
Anatomy & Cell Biology 2018;51(3):174-179
Diffuse idiopathic skeletal hyperostosis (DISH) is characterized by calcification of different entheseal sites including the anterior longitudinal ligament of the spine. There is no documented information about DISH in Oman. This study determined the prevalence of DISH and associated factors among elderly subjects in a national tertiary care referral hospital in Oman. This retrospective study reviewed chest X-rays of all patients aged more than 50 years, referred to the radiology department of Sultan Qaboos University Hospital in the year 2016, based on the Resnick's criteria. The prevalence was expressed as proportions across age groups and sex. Chi-square test and logistic regression analysis was done to determine the association of the age and sex with DISH. A total of 1305 chest X-rays of patients were reviewed. The overall prevalence of DISH was 10%, with male to female ratio of 1.56:1. The odds ratio for males and increasing age were 1.63 (95% confidence interval [CI], 1.12–2.3; P<0.05) and 1.34 (95% CI, 1.14–1.58; P<0.001) respectively. The prevalence increased with age to maximum of 13% in the age group of ≤80. The pre-stage DISH prevalence was 9.3% and more frequently observed among males. Prevalence of DISH in the national tertiary care referral center in Oman is lower than in Jewish population, almost similar to Japanese, but higher than in Koreans. DISH prevalence is positively associated with age and sex. It is necessary to take appropriate precautionary measures to target the ageing population in Oman, especially elderly males.
Aged*
;
Asian Continental Ancestry Group
;
Female
;
Humans
;
Hyperostosis, Diffuse Idiopathic Skeletal*
;
Logistic Models
;
Longitudinal Ligaments
;
Male
;
Odds Ratio
;
Oman*
;
Prevalence*
;
Referral and Consultation
;
Retrospective Studies
;
Spine
;
Tertiary Care Centers*
;
Tertiary Healthcare
;
Thorax
5.Color stability of 3D-printed denture resins: effect of aging, mechanical brushing and immersion in staining medium
Afnan Fouzan ALFOUZAN ; Hadeel Minife ALOTIABI ; Nawaf LABBAN ; Hanan Nejer AL-OTAIBI ; Sara Mohammad AL TAWEEL ; Huda Ahmed ALSHEHRI
The Journal of Advanced Prosthodontics 2021;13(3):160-171
Purpose:
This in-vitro study evaluated and compared the color stability of 3D-printed and conventional heat-polymerized acrylic resins following aging, mechanical brushing, and immersion in staining medium.
Materials and methods:
Forty disc-shaped specimens (10 mm in diameter and 3 mm thick) were prepared from two 3D-printed [DentaBASE (DB) and Denture 3D+ (D3D)] and one conventional polymethylmethacrylate (PMMA) denture materials. The specimens were thermo-cycled, subjected to mechanical brushing, and were immersed in either coffee, lemon juice, coke, or artificial saliva (AS) to simulate one and two years of oral use. Color measurements of the specimens were recorded by a spectrophotometer at baseline (T0), and after one (T1) and two years (T2) of simulation. The color changes (ΔE) were determined and also quantified according to the National Bureau of Standards (NBS) units. Descriptive statistics, followed by factorial ANOVA and Bonferroni post-hoc test (α=.05), were applied for data analysis.
Results:
The independent factors, namely material, staining medium, and immersion time, and interaction among these factors significantly influenced ΔE (P <.009). Irrespective of the materials, treatments, and time, the highest and the lowest mean ∆Es were observed for PMMA in lemon juice (4.58 ± 1.30) and DB in AS (0.41 ± 0.18), respectively. Regarding the material type, PMMA demonstrated the highest mean ∆E (2.31 ± 1.37), followed by D3D (1.67 ± 0.66), and DB (0.85 ± 0.52), and the difference in ΔE between the materials were statistically significant (P <.001). All the specimens demonstrated a decreased color changes at T2 compared to T1, and this difference in mean ∆E was statistically significant (P <.001).
Conclusion
The color changes of 3D-printed denture resins were low compared to conventional heat polymerized PMMA. All the tested materials, irrespective of the staining medium used, demonstrated a significant decrease in ∆E values over time.
6.Color stability of 3D-printed denture resins: effect of aging, mechanical brushing and immersion in staining medium
Afnan Fouzan ALFOUZAN ; Hadeel Minife ALOTIABI ; Nawaf LABBAN ; Hanan Nejer AL-OTAIBI ; Sara Mohammad AL TAWEEL ; Huda Ahmed ALSHEHRI
The Journal of Advanced Prosthodontics 2021;13(3):160-171
Purpose:
This in-vitro study evaluated and compared the color stability of 3D-printed and conventional heat-polymerized acrylic resins following aging, mechanical brushing, and immersion in staining medium.
Materials and methods:
Forty disc-shaped specimens (10 mm in diameter and 3 mm thick) were prepared from two 3D-printed [DentaBASE (DB) and Denture 3D+ (D3D)] and one conventional polymethylmethacrylate (PMMA) denture materials. The specimens were thermo-cycled, subjected to mechanical brushing, and were immersed in either coffee, lemon juice, coke, or artificial saliva (AS) to simulate one and two years of oral use. Color measurements of the specimens were recorded by a spectrophotometer at baseline (T0), and after one (T1) and two years (T2) of simulation. The color changes (ΔE) were determined and also quantified according to the National Bureau of Standards (NBS) units. Descriptive statistics, followed by factorial ANOVA and Bonferroni post-hoc test (α=.05), were applied for data analysis.
Results:
The independent factors, namely material, staining medium, and immersion time, and interaction among these factors significantly influenced ΔE (P <.009). Irrespective of the materials, treatments, and time, the highest and the lowest mean ∆Es were observed for PMMA in lemon juice (4.58 ± 1.30) and DB in AS (0.41 ± 0.18), respectively. Regarding the material type, PMMA demonstrated the highest mean ∆E (2.31 ± 1.37), followed by D3D (1.67 ± 0.66), and DB (0.85 ± 0.52), and the difference in ΔE between the materials were statistically significant (P <.001). All the specimens demonstrated a decreased color changes at T2 compared to T1, and this difference in mean ∆E was statistically significant (P <.001).
Conclusion
The color changes of 3D-printed denture resins were low compared to conventional heat polymerized PMMA. All the tested materials, irrespective of the staining medium used, demonstrated a significant decrease in ∆E values over time.
7.Color stability of 3D-printed denture resins: effect of aging, mechanical brushing and immersion in staining medium
Afnan Fouzan ALFOUZAN ; Hadeel Minife ALOTIABI ; Nawaf LABBAN ; Hanan Nejer AL-OTAIBI ; Sara Mohammad AL TAWEEL ; Huda Ahmed ALSHEHRI
The Journal of Advanced Prosthodontics 2022;14(5):334-334
8. Sepsis patient evaluation emergency department (SPEED) score & mortality in emergency department sepsis (MEDS) score in predicting 28-day mortality of emergency sepsis patients
Adel Hamed ELBAIH ; Zaynab Mohammed ELSAYED ; Rasha Mahmoud AHMED ; Sara Ahmed ABD-ELWAHED
Chinese Journal of Traumatology 2019;22(6):316-322
9.Molecular Identification of Taenia hydatigena from Sheep in Khartoum, Sudan
Rosline James MUKU ; Hong-Bin YAN ; John Asekhaen OHIOLEI ; Abubakar Ahmed SAAID ; Sara AHMED ; Wan-Zhong JIA ; Bao-Quan FU
The Korean Journal of Parasitology 2020;58(1):93-97
The cestode Taenia hydatigena uses canids, primarily dogs, as definitive hosts, while the metacestode larval stage cysticercus infects a range of intermediate hosts, including domestic animals such as goats, sheep, and pigs. Cysticercosis due to T. hydatigena has large veterinary and economic drawbacks. Like other taeniids, e.g., Echinococcus, intraspecific variation is found among the members of the genus Taenia. In Africa, few studies are available on the epidemiology and distribution of T. hydatigena, and even fewer studies are available on its genetic variation. In this study, we molecularly identified 11 cysticerci from sheep in Sudan and demonstrated the genetic variation based on the NADH dehydrogenase subunit 1 (nad1) and cytochrome c oxidase subunit 1 (cox1) mitochondrial genes. The isolates were correctly identified as T. hydatigena with more than 99% similarity to those in the GenBank database. Low diversity indices and insignificant neutrality indices were observed, with 3 and 2 haplotypes for the nad1 and cox1 genes, respectively. The results suggest the presence of unique T. hydatigena haplotypes in Sudan, as haplotypes with 100% similarity were not found in the GenBank database. With few available studies on the genetic variation of T. hydatigena in Africa, this report represents the first insights into the genetic variation of T. hydatigena in Sudan and constitutes useful data.
10.Assessment of biochemical and antioxidative status in patients suffering from dengue fever.
Mahmood RASOOL ; Arif MALIK ; Khalid Mahmud KHAN ; Muhammad Saeed QURESHI ; Beenish SHABBIR ; Sara ZAHID ; Muhammad ASIF ; Abdul MANAN ; Sana RASHID ; Saima Rubab KHAN ; Hafiz Muhammad ARSALAN ; Rabail ALAM ; Mahwish AROOJ ; Mahmood Husain QAZI ; Adeel Gulzar Ahmed CHAUDHARY ; Adel Mohammed ABUZENADAH ; Mohammed Hussain AL-QAHTANI ; Sajjad KARIM
Journal of Huazhong University of Science and Technology (Medical Sciences) 2015;35(3):411-418
A multi-centred study was designed to collect dengue epidemiologic data from government and registered private hospitals/clinics and maintained archive of frozen specimens in bio-bank to be used for future dengue epidemic control program, and assess the epidemiology of dengue fever (DF) by evaluating biochemical and oxidative status of patients. ELISA IgM antibodies test was done to confirm DF. From August 2010 to December 2011, 101 confirmed blood samples of DF patients referred to pathology lab of Jinnah Hospital Lahore were subjected to the epidemiologic assessment by evaluating the biochemical and physiological indices and alterations of circulating antioxidants. Clinical features of DF patients and effect of fever on blood components and serum proteins of liver were recorded. The hospital stay in DF, dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS) showed significant difference. Significant increases in serum alanine amino transferase (ALT) (P=0.000), aspartate amino transferase (AST) (P=0.000), alkaline phosphatase (ALP) (P=0.000), malondialdehyde (MDA) along with significant decreases in total protein (TP) (P=0.000), reduced glutathione (GSH) (P=0.000), superoxide dismutase (SOD), catalase (CAT) (P=0.000), and sialic acid contents (P=0.016) were observed. A positive correlation existed between bound sialic acid levels, liver enzymes and circulating antioxidants (r=0.656, P=0.016). In the present study, alterations of circulating antioxidants in DF suggest that DF might be a metabolic response to an acute, self-limiting tropical viral infection, and a consequence of the viral inflammatory process.
Adult
;
Antioxidants
;
metabolism
;
Biomarkers
;
blood
;
China
;
Dengue
;
classification
;
diagnosis
;
metabolism
;
Diagnosis, Differential
;
Female
;
Humans
;
Immunoglobulin M
;
metabolism
;
Male
;
Middle Aged
;
Young Adult