1.Influence of Sex on Cognitive and Motor Dual-Task Performance Among Young Adults: A Cross-Sectional Study
Radwa ELSHORBAGY ; Hanin ALKHALDI ; Njoud ALSHAMMARI ; Moataz EL SEMARY
Annals of Rehabilitation Medicine 2024;48(2):163-170
Objective:
To investigate the sex-related differences in single-task performance through motor torque, cognitive tasks and walking speed, and the combined dual-task costs (DTCs) considering both motor and cognitive performance in young adults.
Methods:
Sixty-seven non-athletic subjects 37 females and 30 males were enrolled. The study measured their knee extension muscle torque using an isokinetic strength dynamometer and their walking speed using the one step app. these assessments were performed both with and without a cognitive task, and the DTCs were calculated.
Results:
The females exhibited significantly larger motor performance dual task effect through (torque-DTC, speed-DTC) compared with males while exhibiting smaller cognitive dual task effect with muscle torque and speed.
Conclusion
Deterioration in motor performance during muscle force production and speed during dual tasks was large in females compared to males, whereas males experience a decline in cognitive ability when performing dual tasks compared with females.
2.Maintenance Dose of Vitamin D: How Much Is Enough?.
Mir SADAT-ALI ; Fawaz M AL-ANII ; Haifa A AL-TURKI ; Adeebah Abdulaziz ALBADRAN ; Sa'ad Mohammed ALSHAMMARI
Journal of Bone Metabolism 2018;25(3):161-164
BACKGROUND: It is still unclear the ideal vitamin D dosage once the deficiency and insufficiency is treated. Once deficiency was corrected we prospectively treated patients with 2,000 IU of vitamin D3 to check whether this dosage is enough to keep them above the 30 ng/mL of 25-hydroxy-vitamin D (25[OH]D). METHODS: One hundred and thirty-five Saudi Arabian men and women treatment naïve for the vitamin D deficiency and insufficiency were part of this study. History and clinical examination were done to rule out any metabolic bone disease. Weight and height was taken to calculate the body mass index (BMI). Patients who were vitamin D deficient (≥30 ng/mL), a standard treatment of 50,000 IU of vitamin D3 weekly for 3 months, a blood test for the vitamin D levels at the end of 3 months, maintenance dose of 2,000 IU of vitamin D3 for 3 months and a third blood sample after 3 months. RESULTS: The data for 128 patients was available for analysis. The average age was 44.95±12.97 years with the mean BMI of 29.60±2.59 kg/m2. The baseline 25(OH)D level was 13.16±3.30 ng/mL. The increase in the level of 25(OH)D on 50,000 IU weekly was significant from 13.16±3.3 ng/mL to 36.97±4.67 ng/mL (P < 0.001) and then 2,000 IU daily for next 3 months, the level of 25(OH)D dropped top 20.38±5.42 ng/mL (P < 0.001). CONCLUSIONS: Our study indicates that the maintenance dose of 2,000 IU of vitamin D is not enough for patients to keep the 25(OH)D levels above 30 ng/mL.
Body Mass Index
;
Bone Diseases, Metabolic
;
Calcifediol
;
Cholecalciferol
;
Dietary Supplements
;
Female
;
Hematologic Tests
;
Humans
;
Male
;
Prospective Studies
;
Vitamin D Deficiency
;
Vitamin D*
;
Vitamins*
3.Long-term Outcomes of Augmentation Cystoplasty in a Pediatric Population With Refractory Bladder Dysfunction: A 12-Year Follow-up Experience at Single Center.
Shahbaz MEHMOOD ; Hamdan ALHAZMI ; Mohammed AL-SHAYIE ; Ahmed ALTHOBITY ; Ahmed ALSHAMMARI ; Waleed Mohamed ALTAWEEL ; Ahmed ALMATHAMI ; Santiago VALLASCIANI
International Neurourology Journal 2018;22(4):287-294
PURPOSE: Augmentation cystoplasty (AC) is a surgical procedure used in adults and children with refractory bladder dysfunction, including a small bladder capacity and inadequate bladder compliance, and in whom conservative and medical treatment has failed. This study was aimed to determine the long-term outcomes of AC in children. METHODS: A retrospective analysis was conducted of 42 patients (31 males; mean age, 14.2±6.2 years) who underwent AC for neurogenic and nonneurogenic bladder dysfunction, with a median 12.0±1.5 years of follow-up. All patients underwent AC using the ileum with or without continent reconstruction. Pre-AC, concurrent, and post-AC procedures and complications were analyzed. Patients who underwent ureterocystoplasty, were lost to follow-up, or had less than 10 years of follow-up were excluded. The primary outcomes were the complication and continence rates, the post-AC linear rate of height and weight gain, and renal function. The Student t-test was used to evaluate between-group differences and the paired t-test was used to evaluate longitudinal changes in measured variables. RESULTS: Renal function was stable or improved in 32 of 42 patients (76.2%), with a post-AC continence rate of 88.1%. Thirty patients (71.4%) required 72 procedures post-AC. There was no statistically significant difference in the mean percentile of height (P=0. 212) or weight (P=0.142) of patients in the pre- and post-AC periods. No cases of bladder perforation or malignancy were detected. CONCLUSIONS: We consider AC to be a safe and effective procedure that does not negatively affect future physical growth, while achieving a good rate of stable renal function. Patients need long-term follow-up to address long-term complications.
Adult
;
Child
;
Compliance
;
Follow-Up Studies*
;
Humans
;
Ileum
;
Lost to Follow-Up
;
Male
;
Retrospective Studies
;
Urinary Bladder Calculi
;
Urinary Bladder*
;
Weight Gain
4.Diagnostic approach and use of CTPA in patients with suspected pulmonary embolism in an emergency department in Saudi Arabia
Feras ALMARSHAD ; Ali ALAKLABI ; Abdulrahman Al RAIZAH ; Yousof ALZAHRANI ; Somaya Awad ALJOHANI ; Rawaby Khalid ALSHAMMARI ; Al-zahraa Saleh AL-MAHLAWI ; Abdulaziz Abdullah ALAHMARY ; Mosaad ALMEGREN ; Dushad RAM
Blood Research 2023;58(1):51-60
Background:
In patients with suspected pulmonary embolism (PE), the literature suggests the overuse of computerized tomography pulmonary angiography (CTPA) and underuse of clinical decision rules before imaging request. This study determined the potential for avoidable CTPA using the modified Wells score (mWS) and D-dimer assay in patients with suspected PE.
Methods:
This hospital-based retrospective study analyzed the clinical data of 661 consecutive patients with suspected PE who underwent CTPA in the emergency department of a tertiary hospital for the use of a clinical prediction rule (mWS) and D-dimer assay. The score was calculated retrospectively from the available data in the files of patients who did not have a documented clinical prediction rule. Overuse (avoidable) CTPA was defined as D-dimer negativity and PE unlikely for this study.
Results:
Of 661 patients’ data examined, clinical prediction rules were documented in 15 (2.3%).In total, 422 patients (63.8%) had required information on modified Wells criteria and D-dimer assays and were included for further analysis. PE on CTPA was present in 22 (5.21%) of PE unlikely (mWS ≤4) and 1 (0.24%) of D-dimer negative patients. Thirty patients (7.11%) met the avoidable CTPA (DD negative+PE unlikely) criteria, and it was significantly associated with dyspnea. The value of sensitivity of avoidable CTPA was 100%, whereas the positive predictive value was 90.3%.
Conclusion
Underutilization of clinical prediction rules before prescribing CTPA is common in emergency departments. Therefore, a mandatory policy should be implemented regarding the evaluation of avoidable CTPA imaging to reduce CTPA overuse.
5.Competencies in nursing informatics in the Saudi Arabian context: A sequential explanatory study
Farhan Alshammari ; Eddieson Pasay-an ; Maria Charito Laarni Indonto
Philippine Journal of Nursing 2017;87(2):44-54
Studies demonstrate that there is a dearth of literature published in the local
context regarding competencies in nursing informatics in Saudi Arabia. This study
employs mixed method design (specifically, a sequential explanatory approach) in
documenting the nursing informatics competencies of nurses. A total population
was used for the quantitative aspect and purposive sampling was used for the
qualitative. There were 295 nurses as respondents. This study commenced with
the approval of the Ethics Review Board of the University of Hail. The study was
conducted from October 2016 to March 2017 at King Khalid Hospital, Kingdom of
SaudiArabia.
The results show that nurses are competent in computer literacy (3.38), informatics
management (3.49), and informatics literacy (3.27). Nationality and area of
assignment proved to be significant in relation to nurses’ competencies. Three
themes and six subthemes emerged which included: (a) uncertainty, with the
subthemes of diffident and reticent; (b) uncovering the meaning of technology, with
the subthemes of value for patients and technology for nurses; and, (c)
streamlining Continuing Nursing Education, with the subthemes of competency
perspective and the missing link.
Nurses acknowledged the significance of nursing informatics in promoting safety
and quality care to the patient. However, there can be improvement in the impact of
the results of this study by focusing on what the nurses consider as contributory
factor in the full achievement of competence in nursing informatics.
Computer Literacy
;
Nursing Informatics
6.The emergence of antibiotic-induced resistant microbiomes among severe COVID-19-infected patients correlates with a high case fatality rate
Zina Alshami ; Haidar Jiham ; Ahmed Alshammari
Malaysian Journal of Microbiology 2024;20(no.1):94-99
Aims:
The coronavirus disease 2019 (COVID-19) is a contagious respiratory disease. The massive use of antibiotics during COVID-19 treatment induced the problem of antibiotic resistance among different strains of microbiome. The current study was conducted to evaluate the level of antibiotic resistance among pathogenic and microbiome bacteria isolated from the blood and upper respiratory tract of COVID-19 patients and its correlation with the case fatality rate in each patient.
Methodology and results:
COVID-19 patients were diagnosed using real-time reverse transcription-polymerase chain reaction (RT-PCR) technique. Swabs and blood samples were collected from each patient to isolate bacteria and every isolate identification was performed using the bioMérieux VITEK® 2 system. The case fatality rate among the study group was 50% for patients whose isolates were highly antibiotic-resistant. Blood culture was positive in 2.5% compared to nasal swab culture in 65%. Results of nasal swab culture revealed growth of Gram-positive bacteria isolated from 17.1% of patients, Gram-negative isolates were found in 9.75% and fungal isolates formed 9.75%. Most of the isolates were reflective of normal microbiomes; unfortunately, isolates were 100% resistant to penicillins, cephalosporins, azithromycin and amoxicillin-clavulanate. On the other hand, isolates were 100% sensitive to daptomycin.
Conclusion, significance and impact of study
Results were alarming and there is a need to take measures to prevent the increase in bacterial resistance to antibiotics and limit the excessive use of it. It is crucial to monitor the rise in fungal infections among patients and consider it a risk factor for increasing the case fatality rate.
7.Antileishmanial effects, cellular mechanisms, and cytotoxicity of Elettaria cardamomum essential oil against Leishmania major infection
Majeed, Q.A. ; Alshammari, A. ; Alanazi, A.D.
Tropical Biomedicine 2023;40(No.2):259-265
Leishmaniasis is an infectious disease with various clinical manifestations. We studied the therapeutic
effects of Elettaria cardamomum essential oil (ECEO) against Leishmania major infection. In vitro effects
of ECEO against L. major were examined by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium
bromide) and macrophage assays. Nitric oxide (NO) production, infection inhibition in macrophages,
and the apoptotic activity of ECEO in treated parasites were also measured. By calculating the 50%
cytotoxic concentrations (CC50), we studied the cytotoxicity effects of ECEO on human macrophage cells
(THP-1). The efficacy of ECEO for improving cutaneous leishmaniasis (CL) lesions in mice (BALB/c) was
determined by evaluating the size of lesions and the number of amastigotes before and after four weeks
of treatment. The effects of ECEO on liver and kidney function in the tested mice were also evaluated.
ECEO dose-dependently (p<0.001) inhibited the viability and the mean number of promastigotes and
amastigote forms of L. tropica. Four weeks of treatment with ECEO at the doses of 2.5 and 5 mg/kg/
day significantly (p<0.001) improved the CL lesions and reduced the number of parasites in the infected
mice. ECEO significantly increased NO production, apoptosis induction, and infection rate in parasites.
The CC50 value for ECEO and MA was 303.4 µg/mL and 835.2 µg/mL, respectively. In the mice receiving
ECEO at the doses of 2.5 and 5 mg/kg/day for 28 days, no significant change was reported between the
serum level of liver enzymes and kidney factors when compared with the control group. ECEO displayed
promising efficacy in parasite reduction in vitro and in the animal model. ECEO can thus be used as an
alternative medicine to treat CL.
8. Opuntia humifusa aqueous extract alleviates ethanol-induced gastric ulcer in a mouse model
Chi-Yeol YOO ; Hyeong-U SON ; Alshammari FANAR ; Hee-Jung CHOI ; Sang-Han LEE ; Hyeong-U SON ; Md ALAM ; Sang-Han LEE
Asian Pacific Journal of Tropical Biomedicine 2020;10(9):403-410
Objective: To investigate the effect of Opuntia humifusa aqueous extract on gastric ulcers. Methods: An ethanol-induced model was used to examine the protective effect of Opuntia humifusa against gastric ulcers. The gastric ulcer index was evaluated via clinical observation and image analysis. Various inflammatory indicators were determined by RT-PCR and Western blotting assays. Results: The gastric ulcer index was reduced to 8% in the group treated with Opuntia humifusa aqueous extract compared with that in the control group. RT-PCR analysis revealed that MUC5AC expression was reduced to 39% in the control group compared with the non-treated group, whereas the omeprazole and Opuntia humifusa aqueous extract-treated groups increased the expression to 95% and 79%, respectively. Moreover, the expressions of various cytokines including TNF-α, IL-1β, and IL-6 were increased in the control group, while decreasing in Opuntia humifusa aqueous extract-treated group. Opuntia humifusa aqueous extract also suppressed the expressions of iNOS, COX-2, and its transcription factor NF-κB and increased mucus content considerably as compared to the control group. Conclusions: These results suggest that Opuntia humifusa aqueous extract is suitable as an alternative remedy for gastric ulcer treatment.
9. Genetic association study of P2x7 A1513C (rs 3751143) polymorphism and susceptibility to pulmonary tuberculosis: A meta-analysis based on the findings of 11 case–control studies
Eyad M.A. ALSHAMMARI ; Saif KHAN ; Raju K. MANDAL ; Mohd WAHID ; Sajad A. DAR ; Arshad JAWED ; Mohammed Y. AREESHI ; Shafiul HAQUE ; Sajad A. DAR ; Md. Ekhlaque Ahmed KHAN ; Aditya K. PANDA
Asian Pacific Journal of Tropical Medicine 2016;9(12):1150-1157
Objective To summarize the precise association between pulmonary tuberculosis (PTB) and P2x7 A1513C gene polymorphism. Methods PubMed and Google Scholar web-databases were searched for the studies reporting the association of P2x7 A1513C polymorphism and PTB risk. A meta-analysis was performed for the selected case–control studies and pooled odds ratios (ORs) and 95% confidence intervals (95% CIs) were calculated for all the genetic models. Results Eleven studies comprising 2 678 controls and 2 113 PTB cases were included in this meta-analysis. We observed overall no significant risk in all the five genetic models. When stratified population by the ethnicity, Caucasian population failed to show any risk of PTB in all the genetics models. In Asian ethnicity, variant allele (C vs. A: P = 0.001; OR = 1.375, 95% CI = 1.159–1.632) and heterozygous genotype (AC vs. AA: P = 0.001; OR = 1.570, 95% CI = 1.269–1.944) demonstrated significant increased risk of PTB. Likewise, recessive genetic model (CC + AC vs. AA: P = 0.001; OR = 1.540, 95% CI = 1.255–1.890) also demonstrated increased risk of PTB in Asians. Conclusions Our meta-analysis did not suggest the association of P2x7 A1513C polymorphism with PTB risk in overall or separately in Caucasian population. However, it plays a significant risk factor for predisposing PTB in Asians. Future larger sample and expression studies are needed to validate this association.