Mohammed Alshammari

Dr. Mohammed Alshammari

orcid

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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10 September 2022 in Molecules
Verified
Journal Article
Open access
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MAMuhammad Afzal
Muhammad Afzal
SASami Alzarea
Sami Alzarea
KAKhalid Saad Alharbi
Khalid Saad Alharbi
AAAbdulaziz I. Alzarea
Abdulaziz I. Alzarea
SASattam Khulaif Alenezi
Sattam Khulaif Alenezi
IKImran Kazmi
Imran Kazmi
Aim: A monoterpene and bioactive component of the plant Rhodiola rosea (R. rosea), rosiridin has beneficial effects on the human central nervous system and enhances brain function. The goal of this scientific study was to determine if rosiridin might shield rats from neurocognitive problems induced by scopolamine. Methods: To track the potential toxicities in rats, the acute toxicity in rats was clarified. Rosiridin at a dose of 10 mg/kg was tested in rats for 14 days. At the conclusion of the investigation, behavioral parameters that were used to identify the rats’ cognitive and motor abilities were evaluated. Several biochemical parameters were estimated using the prepared homogenate, including acetylcholine esterase (AChE), choline acetyltransferase (ChAT), radical scavengers produced by the body (Catalase-CAT, superoxide dismutase-SOD, and reduced glutathione-GSH), indicators of oxidative and nitrative burnout, pro-inflammatory (Interleukins- IL-1β, IL-6, interferon gamma IFN-ꝩ, and tumor necrosis factor-TNF-α), and cell apoptosis caspases 3 and 9. Results and Conclusion: A significant behavioral parameter restoration was seen in the rosiridin-treated group, including reduction in latency time during acquisition and retention trial in the Morris water maze test, and percentage of spontaneous alterations in the y-maze test, when compared to the disease control group that received scopolamine; rosiridin also altered the oxidative stress and neuroinflammatory markers, as well as restoring Ach and ChAT activities and normalizing GSH, SOD, MDA, TNF-α, nitrate, IL-1β, IL-6, IFN-ꝩ, caspases 3 and 9 levels. The results imply that rosiridin limits the effect of scopolamine on rat cognitive function.

2 July 2023 in Medicina
Verified
Journal Article
Open access
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UAUmmara Altaf
Ummara Altaf
Zikria SaleemZikria Saleem
Zikria Saleem
MAMuhammad Furqan Akhtar
Muhammad Furqan Akhtar
WAWaleed M. Altowayan
Waleed M. Altowayan
AAAbdulmajeed Alqasoumi
Abdulmajeed Alqasoumi
BGBrian Godman
Brian Godman
Background: There are concerns with inappropriate prescribing of antibiotics in hospitals especially broad spectrum in Pakistan and the subsequent impact on antimicrobial resistance rates. One recognized way to reduce inappropriate prescribing is for empiric therapy to be adjusted according to the result of culture sensitivity reports. Objective: Using culture sensitivity reports to optimize antibiotic prescribing in a teaching hospital in Pakistan. Methods: A retrospective observational study was undertaken in Ghurki Trust Teaching Hospital. A total of 465 positive cultures were taken from patients during the study period (May 2018 and December 2018). The results of pathogen identification and susceptibility testing from patient-infected sites were assessed. Additional data was collected from the patient’s medical file. This included demographic data, sample type, causative microbe, antimicrobial treatment, and whether empiric or definitive treatment as well as medicine costs. Antimicrobial data was assessed using World Health Organization’s Defined Daily Dose methodology. Results: A total of 497 isolates were detected from the 465 patient samples as 32 patients had polymicrobes, which included 309 g-negative rods and 188 g-positive cocci. Out of 497 isolates, the most common Gram-positive pathogen isolated was Staphylococcus aureus (Methicillin-sensitive Staphylococcus aureus) (125) (25.1%) and the most common Gram-negative pathogen was Escherichia coli (140) (28.1%). Most of the gram-negative isolates were found to be resistant to ampicillin and co-amoxiclav. Most of the Acinetobacter baumannii isolates were resistant to carbapenems. Gram-positive bacteria showed the maximum sensitivity to linezolid and vancomycin. The most widely used antibiotics for empiric therapy were cefoperazone plus sulbactam, ceftriaxone, amikacin, vancomycin, and metronidazole whereas high use of linezolid, clindamycin, meropenem, and piperacillin + tazobactam was seen in definitive treatment. Empiric therapy was adjusted in 220 (71.1%) cases of Gram-negative infections and 134 (71.2%) cases of Gram-positive infections. Compared with empiric therapy, there was a 13.8% reduction in the number of antibiotics in definitive treatment. The average cost of antibiotics in definitive treatment was less than seen with empiric treatment (8.2%) and the length of hospitalization also decreased. Conclusions: Culture sensitivity reports helped reduced antibiotic utilization and costs as well as helped select the most appropriate treatment. We also found an urgent need for implementing antimicrobial stewardship programs in hospitals and the development of hospital antibiotic guidelines to reduce unnecessary prescribing of broad-spectrum antibiotics.

SASuhaj Abdulsalim
Suhaj Abdulsalim
MFMaryam Farooqui
Maryam Farooqui
MAMohammed Alshammari
Mohammed Alshammari
MAMeshal Alotaibi
Meshal Alotaibi
AAAbdulfattah Yahya M Alhazmi
Abdulfattah Yahya M Alhazmi
WAWaleed M. Altowayan
Waleed M. Altowayan
Background: Pharmacovigilance (PV) is an essential activity to detect adverse drug reactions (ADRs) and ensure patient safety. Hence, we aimed to evaluate knowledge, attitudes, and practices (KAP) regarding PV among community pharmacists in Qassim, Saudi Arabia. Methods: A cross-sectional study was conducted by using a validated questionnaire after obtaining ethical approval from the Deanship of Scientific Research, Qassim University. The sample size was calculated based on the total number of pharmacists in the Qassim area by using Raosoft, Inc. Statistical Package for the Social Sciences version 20 was used for data entry and analysis. Ordinal logistic regression was performed to identify the predictors of KAP. A p-value of <0.05 was considered statistically significant. Results: A total of 209 community pharmacists participated in the study; 62.9% of them defined the PV correctly, and 59% of them defined ADRs correctly. However, only 17.2% knew where to report ADRs. Interestingly, the majority of participants (92.9%) reported that it is necessary to report ADRs, and 73.8% of them were willing to report ADRs. A total of 53.8% of the participants identified ADRs during their careers; however, only 21.9% reported ADRs. Barriers discourage ADR reporting; the majority of the participants (85.6%) do not know how to report ADRs. Conclusion: Community pharmacists who participated in the study were knowledgeable about PV, and their attitude towards reporting ADRs was highly positive. However, the number of reported ADRs was low because of the lack of knowledge on how and where to report ADRs. Continuous education and motivation about ADRs reporting and PV are warranted among community pharmacists for the rational use of medications.

21 September 2023 in Pharmacy
Verified
Journal Article
Open access
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SASAUD ALSAHALI
SAUD ALSAHALI
GAGhazwaa Almutairi
Ghazwaa Almutairi
RARaghad Aedh
Raghad Aedh
SASarah Alanezi
Sarah Alanezi
HAHanan Almutairi
Hanan Almutairi
SASuhaj Abdulsalim
Suhaj Abdulsalim
Background: Electronic prescribing systems (e-prescription) for medications have many benefits, including patient safety, increase in patient satisfaction, efficiency of pharmacy work, and quality of patient care. However, few studies have been conducted to evaluate the national e-prescription system “Wasfaty” service in Saudi Arabia, which was recently adopted. Objective: The aims of this study were to explore the benefits observed through the use of the system and most frequent challenges experienced by community pharmacists in the Qassim region of Saudi Arabia. Methods: This study was conducted using a descriptive survey on a web-based platform. The target population of the study included community pharmacists in the Qassim region of Saudi Arabia who worked in pharmacy chains utilizing the e-prescription service between September 2022 and November 2022. Descriptive statistics along with multiple ordinal regression were used for data analysis. Results: The study population consisted of 124 pharmacists, of which 62.9% (78/124) were males and 37.1% (46/124) were females. Most of the participants had a positive perception of the e-prescription system with regard to medication safety, with 68.6% (85/124) indicating that e-prescriptions reduce the risk of dispensing errors. However, 81.5% (101/124) did not agree that the e-prescription system resulted in a reduction in workload, and 70.2% (87/124) disagreed that the service increased patient satisfaction. Conclusions: The results of this study indicated that the national e-prescription system has many benefits to healthcare employees and improves their work, particularly for patient safety, reducing medication errors, and improving the management of patient medications. The participants believe that there is a need to improve communication with prescribers, showing concern about the unavailability of some medications; thus, it is important for policymakers to encourage other pharmacy chains and suppliers to join the service to increase patient access to medications.

8 September 2022 in Healthcare
Verified
Journal Article
Open access
PDF file
MFMaryam Farooqui
Maryam Farooqui
HAHanan Alreshidi
Hanan Alreshidi
JAJana Alkheraiji
Jana Alkheraiji
SASuhaj Abdulsalim
Suhaj Abdulsalim
MAMohammed Alshammari
Mohammed Alshammari
WIWan Ismahanisa Ismail
Wan Ismahanisa Ismail
This study aims to investigate CAM use among CD patients from Qassim, Saudi Arabia and to compare CAM practice with different demographic and disease characteristics of the participants. A cross-sectional study was conducted among CD patients. During the three-months of data collection period, a total of 377 patients were approached and 208 patients participated in the study, giving a response rate of 55.17%. A p value of <0.05 was considered as significant. Among the study population, 94 (45.2%) patients were CAM users. Diabetes mellitus patients were the majority (48 (51.06%)) followed by hypertensive patients (34 (36.17%)). Spiritual therapies were the most common CAM followed by herbal products. Among CAM users, 41 (19.7%) patients reported disclosing CAM use to their health care providers. Among all the sociodemographic variables, gender (p = 0.029), marital status (p = 0.034) and education level (p = 0.047) were significantly associated with CAM use. In conclusion, the use of CAM among CD patients was relatively high in Qassim. Patients reported using CAM without disclosing to their health care providers which is a major health risk. It is critical to counsel CD patients regarding rational and informed CAM use in order to prevent harmful and unwanted effects.

23 July 2022 in Biomolecules
Verified
Journal Article
Open access
PDF file
MAMuhammad Afzal
Muhammad Afzal
NSNadeem Sayyed
Nadeem Sayyed
KAKhalid Saad Alharbi
Khalid Saad Alharbi
SASami Alzarea
Sami Alzarea
MAMohammed Alshammari
Mohammed Alshammari
IKImran Kazmi
Imran Kazmi
Background: Rosiridin is a compound extracted from Rhodiola sachalinensis; water extracts of Rhodiola root elicit positive effects on the human central nervous system and improve brain function. They are also thought to be beneficial to one’s health, in addition to being antioxidants. The present study aims to evaluate the anti-Huntington’s effect of rosiridin against 3-nitropropionic acid (3-NPA)-induced Huntington’s disease (HD)-like effects in rats. Materials and Methods: The acute toxicity in rats was elucidated to track the conceivable toxicities in the rats. The effectiveness of rosiridin at a dosage of 10 mg/kg was evaluated against several dose administrations of 3-NPA-induced HD-like symptoms in the rats for 22 days. At the end of the study, behavioral parameters were assessed as a hallmark for the cognitive and motor functions in the rats. Similarly, after the behavioral assessment, the animals were sacrificed to obtain a brain tissue homogenate. The prepared homogenate was utilized for the estimation of several biochemical parameters, including oxidative stress (glutathione, catalase, and malondialdehyde), brain-derived neurotrophic factor and succinate dehydrogenase activity, and the glutamate and acetylcholinesterase levels in the brain. Furthermore, inflammatory mediators linked to the occurrence of neuroinflammation in rats were evaluated in the perfused brain tissues. Results: The rosiridin-treated group exhibited a significant restoration of behavioral parameters, including in the beam-walk test, latency in falling during the hanging wire test, and percentage of memory retention during the elevated plus-maze test. Further, rosiridin modulated several biochemical parameters, including oxidative stress, pro-inflammatory activity, brain-derived neurotrophic factor, nitrite, and acetylcholinesterase as compared to disease control group that was treated with 3-NPA. Conclusions: The current study exhibits the anti-Huntington’s effects of rosiridin in experimental animal models.