Mohammed Aldhaeefi

Dr. Mohammed Aldhaeefi


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

View All Publications
11 February 2023 in Pharmacy
Verified
Journal Article
Open access
PDF file
MAMohammed Aldhaeefi
Mohammed Aldhaeefi
HBHisham Badreldin
Hisham Badreldin
FAFaisal Alsuwayyid
Faisal Alsuwayyid
TATariq Alqahtani
Tariq Alqahtani
OAOmar Abdulrahman Almohammed
Omar Abdulrahman Almohammed
AAAbdulrahman I. Alshaya
Abdulrahman I. Alshaya
In recent years, anticoagulant and antiplatelet use have increased over the past years for the prevention and treatment of several cardiovascular conditions. Due to the rising use of antithrombotic medications and the complexity of specific clinical cases requiring such therapies, bleeding remains the primary concern among patients using antithrombotics. Direct oral anticoagulants (DOACs) include rivaroxaban, apixaban, edoxaban, and betrixaban. Direct thrombin inhibitors (DTIs) include argatroban, bivalirudin, and dabigatran. DOACs are associated with lower rates of fatal, life-threatening, and significant bleeding risks compared to those of warfarin. The immediate reversal of these agents can be indicated in an emergency setting. Antithrombotic reversal recommendations are still in development. Vitamin K and prothrombin complex concentrate (PCCs) can be used for warfarin reversal. Andexanet alfa and idarucizumab are specific reversal agents for DOACs and DTIs, respectively. Protamine sulfate is the solely approved reversal agent for unfractionated heparin (UFH) and low-molecular-weight heparin (LMWH). However, there are no specific reversal agents for antiplatelets. This article aims to provide a practical guide for clinicians regarding the reversal of anticoagulants and antiplatelets in clinical practice based on the most recent studies.

20 June 2025 in Medicine
Verified
Journal Article
Open access
MAMarwan Alrasheed
Marwan Alrasheed
KAKhalid Alamer
Khalid Alamer
LGLeen Msc Ghonem
Leen Msc Ghonem
AAAbdulrahman A Alsuhibani
Abdulrahman A Alsuhibani
YTYahya Tawfik
Yahya Tawfik
TAThamer A Almangour
Thamer A Almangour
Therapeutic drug monitoring (TDM) is key to optimizing vancomycin therapy, as accurate sampling timing ensures valid drug levels and supports safe, effective clinical decisions. This study aimed to assess the timing accuracy of blood draws for vancomycin TDM, evaluate its clinical implications, and identify predictors of timing errors. A cross-sectional study was conducted at King Saud University Medical City, involving 103 patients from October 2023 to December 2023. The primary outcome was adherence to the blood sampling timing guidelines. Secondary outcomes included clinical cure rates, acute kidney injury incidence, and in-hospital mortality. Of the analyzed samples, 80.6% were improperly timed. Clinical cure rates were significantly higher among patients with correctly timed samples (75%) compared to those with incorrectly timed samples (57.83%). Timely sampling improved cure rates for pulmonary and skin infections (85.71%), while improper timing reduced them to 72.22% and 62.5%, respectively. Improper timing was linked to higher in-hospital mortality (30.12%) and acute kidney injury (15.66%). Multivariate analysis revealed that bacteremia significantly reduced the likelihood of clinical cure (odds ratio = 0.387, 95% confidence interval [0.160, 0.933], P = .035), while 3 times daily dosing significantly increased the odds of correctly timed samples (odds ratio = 5.1, 95% confidence interval [1.125, 23.11], P = .035). This study highlights the critical role of accurate timing in vancomycin TDM for achieving favorable patient outcomes and reducing adverse events. Strengthened institutional protocols and targeted training programs are essential to improve adherence to sampling guidelines and enhance patient safety.

17 March 2023 in Pharmacy
Verified
Journal Article
Open access
PDF file
MAMohammed Aldhaeefi
Mohammed Aldhaeefi
BBBrandon Beers
Brandon Beers
JSJenny Shah
Jenny Shah
SRSaba Saeidi Rizi
Saba Saeidi Rizi
DRDhakrit Rungkitwattanakul
Dhakrit Rungkitwattanakul
DWDeborah Williams
Deborah Williams
Heart failure (HF) is a growing major public health and economic concern in the United States and worldwide. Heart failure mortality rates can be as high as 75% despite advances in therapies. HF is expected to be the fastest growing among all cardiovascular diseases, with HF-associated direct medical costs projected to nearly double over the next 10 years. Hospital admissions, re-admission, and medical cost are a huge burden to the healthcare system, and this is estimated to have increased gradually over the past decades despite the available advances in HF treatment and prevention. Many heart failure therapies have shown improvement in terms of mortality, morbidity, and symptomatic management. Guideline-directed medical therapy (GDMT) for heart failure has proven its ability to reduce morbidity and mortality by 66%. GDMT is recommended to be used among all HF patients when appropriate. In recent years, two new drug classes, angiotensin receptor-neprilysin inhibitor (ARNi) and sodium-glucose cotransporter-2 (SGLT-2) inhibitors, were approved by the United States Food and Drug Administration (US FDA) for the management of heart failure. The exact mechanism by which the SGLT-2 inhibitors attenuate the inflammatory process remains unclear. Several mechanisms have been suggested related to the cardiovascular benefit of SGLT-2 inhibitors, including a reduction in inflammation, improvement in natriuresis/diuresis, and promotion of the use of ketones as a secondary energy source. Clinical data showed that SGLT-2 inhibitors have morbidity and mortality benefits within 30 days of initiation. Studies have proven that clinical pharmacists practicing in HF inpatient and outpatient settings resulted in a reduction of HF hospitalization and an increase in the uptake of GDMT by initiating or up-titrating GDMT agents as well as providing patient education.

5 April 2023 in Cancers
Verified
Journal Article
Open access
PDF file
TATariq M Alqahtani
Tariq M Alqahtani
Vishnu Muthuraj KumarasamyVishnu Muthuraj Kumarasamy
Vishnu Muthuraj Kumarasamy
SASahar Alghamdi
Sahar Alghamdi
Rasha Saad SulimanRasha Saad Suliman
Rasha Saad Suliman
KSKhalid Bin Saleh
Khalid Bin Saleh
DSDaekyu Sun
Daekyu Sun
Aberrant gene expression is often linked to the progression of various cancers, making the targeting of oncogene transcriptional activation a potential strategy to control tumor growth and development. The RET proto-oncogene’s gain-of-function mutation is a major cause of medullary thyroid carcinoma (MTC), which is part of multiple endocrine neoplasia type 2 (MEN2) syndrome. In this study, we used a cell-based bioluminescence reporter system driven by the RET promoter to screen for small molecules that potentially suppress the RET gene transcription. We identified adefovir dipivoxil as a transcriptional inhibitor of the RET gene, which suppressed endogenous RET protein expression in MTC TT cells. Adefovir dipivoxil also interfered with STAT3 phosphorylation and showed high affinity to bind to STAT3. Additionally, it inhibited RET-dependent TT cell proliferation and increased apoptosis. These results demonstrate the potential of cell-based screening assays in identifying transcriptional inhibitors for other oncogenes.

20 June 2022 in Pharmacy
Verified
Journal Article
Open access
PDF file
DRDhakrit Rungkitwattanakul
Dhakrit Rungkitwattanakul
WCWeerachai Chaijamorn
Weerachai Chaijamorn
EHEunice Han
Eunice Han
MAMohammed Aldhaeefi
Mohammed Aldhaeefi
Recent recognitions of longstanding societal inequity in kidney function assessments have prompted the call to eliminate race as part of the algorithm to assess estimated glomerular filtration rate (eGFR). Previous equations for eGFR estimation adopted race as part of the calculation. Incorporating race within eGFR equations results in overestimating and underestimating Black and nonblack patients, respectively. The inclusion of race is controversial. In September 2021, the National Kidney Foundation (NKF) and the American Society of Nephrology (ASN) combined task force recommended estimating the kidney function without using a race variable. The task force endorsed race-free creatinine-cystatin C equations to be more accurate than the creatinine-only equations. Before the application of NKF-ASN revised recommendations, major healthcare disparities influenced daily clinical practice. Those disparities include the delay in initiating medications that have reanl or cardio-protective effects, such as sodium-glucose cotransporter–2 inhibitors (SGLT-2i) and angiotensin-converting enzyme inhibitors (ACEIs). Clinical judgment should be employed when dose adjusting medications. Combining the eGFR with other clinical assessment tools such as urinary output, the expanded use of confirmatory tests, and the eGFR trend is suggested for a better kidney function assessment. Additionally, creatinine-cystatin C is recommended when feasible, and when institutions have the laboratory abilities.

23 June 2023 in Critical Care Explorations
Verified
Journal Article
Open access
MAMohammed Aldhaeefi
Mohammed Aldhaeefi
AAAbdulrahman Alshaya
Abdulrahman Alshaya
SBSanaa Belrhiti
Sanaa Belrhiti
DRDhakrit Rungkitwattanakul
Dhakrit Rungkitwattanakul
Sepsis is a life-threatening organ dysfunction caused by a dysregulated host response to an infection. Septic shock is when initial fluid resuscitation fails to increase the mean atrial pressure to greater than or equal to 65 mm Hg. The 2021 Surviving Sepsis Campaign guidelines recommend corticosteroids for vasopressor and fluid-refractory septic shock patients. Medication shortages can arise, and their etiologies include natural disasters, quality control issues, and manufacturing discontinuation. The U.S. Food and Drug Administration and the American Society of Health-System Pharmacists announced a shortage of IV hydrocortisone. Methylprednisolone and dexamethasone are considered therapeutic alternatives to hydrocortisone. This commentary aims to guide clinicians on the alternative to hydrocortisone among septic shock patients due to medication shortage.