Amirah Mohammad Alhowiti

Dr. Amirah Mohammad Alhowiti

orcid

Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

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

Representative Publications

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15 April 2025 in Molecular Neurobiology
Verified
Journal Article
Open access
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YRYasmin Nasr Ramadan
Yasmin Nasr Ramadan
SASaleh F Alqifari
Saleh F Alqifari
KAKhaled Alshehri
Khaled Alshehri
AAAmirah Mohammad Alhowiti
Amirah Mohammad Alhowiti
HMHyder Mirghani
Hyder Mirghani
Helal HettaHelal Hetta
Helal Hetta
The current discovery that the gut microbiome, which contains roughly 100 trillion microbes, affects health and disease has catalyzed a boom in multidisciplinary research efforts focused on understanding this relationship. Also, it is commonly demonstrated that the gut and the CNS are closely related in a bidirectional pathway. A balanced gut microbiome is essential for regular brain activities and emotional responses. On the other hand, the CNS regulates the majority of GI physiology. Any disruption in this bidirectional pathway led to a progression of health problems in both directions, neurological and gastrointestinal diseases. In this review, we hope to shed light on the complicated connections of the microbiome-gut-brain axis and the critical roles of gut microbiome in the early development of the brain in order to get a deeper knowledge of microbiome-mediated pathological conditions and management options through rebalancing of gut microbiome.

9 December 2024 in Life
Verified
Journal Article
Open access
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MKmanal kowdiary
manal kowdiary
ZAZinab ALAtawi
Zinab ALAtawi
AAAmirah Mohammad Alhowiti
Amirah Mohammad Alhowiti
MAMohamed Abdel-Aal Amin
Mohamed Abdel-Aal Amin
HDHussam Daghistani
Hussam Daghistani
Amr FoudaAmr Fouda
Amr Fouda
This study examined the phytochemical profile and biomedical activities of Nitraria retusa, a halophytic and drought-resistant shrub. HPLC analysis showed gallic acid (1905.1 μg/g), catechin (1984.1 μg/g), and ellagic acid (2671.1 μg/g) as the primary constituents, while FT-IR analysis revealed a complex organic profile with significant functional groups. The extract demonstrated strong antioxidant activity in DPPH assays, outperforming ascorbic acid (IC50 = 18.7 ± 1.0 μg/mL) with an IC50 of 16.4 ± 4.4 μg/mL. It demonstrated specific antiproliferative effects on cancer cell lines as it showed selective cytotoxicity against cancer cell lines; normal WI38 cells were largely unaffected, showing 50.0% viability at 125 μg/mL. The most sensitive cell line was Caco2, which showed 50.0% viability at 125 μg/mL. Anti-diabetic properties were exhibited by means of inhibition of α-amylase (IC50 = 68.2 ± 4.2 μg/mL) and α-glucosidase (IC50 = 22.8 ± 3.3 μg/mL). Additionally, antimicrobial activity was observed to be broad-spectrum, and it was most effective against E. coli (32.6 mm inhibition zone at 400 μg/mL) and Penicillium glabrum (35.3 mm at 400 μg/mL). These findings highlight the potential of N. retusa in developing plant-based therapeutic approaches.

29 April 2025 in Pharmaceuticals
Verified
Journal Article
Open access
PDF file
Helal HettaHelal Hetta
Helal Hetta
SASaleh F Alqifari
Saleh F Alqifari
KAKhaled Alshehri
Khaled Alshehri
AAAmirah Mohammad Alhowiti
Amirah Mohammad Alhowiti
SASaud Alharbi
Saud Alharbi
Reem SayadReem Sayad
Reem Sayad
Background/Objectives: Anlotinib is a novel oral antiangiogenic tyrosine kinase inhibitor (TKI) approved as a third-line treatment for advanced non-small-cell lung cancer (NSCLC). However, its efficacy in combination with docetaxel remains incompletely understood. Given the need for effective second-line therapies after platinum-based chemotherapy, this systematic review aims to evaluate the therapeutic potential of anlotinib plus docetaxel in advanced NSCLC. Methods: The PubMed, WOS, Medline, and Scopus databases were screened for published articles up to 12 April 2024. We included RCTs comparing anlotinib plus docetaxel with docetaxel alone in advanced NSCLC after receiving platinum-based chemotherapy, reporting progression-free survival (PFS), objective response rate (ORR), and disease control rate (DCR) as outcomes for both groups. Results: Our systematic review included three randomized controlled trials (RCTs) with a total of 151 patients in the anlotinib plus docetaxel group and 132 in the docetaxel-only group. Meta-analysis results demonstrated that the combination therapy significantly prolonged PFS (mean difference (MD) = 2.98, 95% confidence interval (CI), 1.95–4.00; p < 0.00001) and improved ORR (risk ratio (RR) = 3.04, 95% CI = 1.77–5.24; p < 0.00001). Additionally, the DCR was notably higher in the combination group (RR = 1.58, 95% CI = 1.34–1.87; p < 0.00001). Conclusions: Anlotinib plus docetaxel appears to be more effective as a second-line treatment of advanced NSCLC than docetaxel in prolonging PFS and increasing ORR and DCR.

28 June 2025 in Pharmaceuticals
Verified
Journal Article
Open access
PDF file
Helal HettaHelal Hetta
Helal Hetta
MAMostafa Ali
Mostafa Ali
SASaleh F Alqifari
Saleh F Alqifari
HSHoda Abdelaziz Salem
Hoda Abdelaziz Salem
KQKhulood A. Qasem
Khulood A. Qasem
Reem SayadReem Sayad
Reem Sayad
Background/Objectives: Non-small-cell lung cancer (NSCLC) frequently metastasizes to the brain, significantly impacting patient prognosis and quality of life. Anlotinib, a novel tyrosine kinase inhibitor, has shown promise in treating NSCLC with brain metastasis. So, we aimed to evaluate the clinical efficacy of anlotinib and various types of radiotherapy combinations used to treat NSCLC patients with brain metastasis regarding overall survival and the treatment of internal and external lesions. Methods: A comprehensive literature search was conducted in the databases PubMed, Scopus, WoS, MedLine, and Cochrane Library up to April 2024. Studies assessing the efficacy of anlotinib combined with whole-brain radiotherapy (WBRT), stereotactic radiosurgery (SRS), or other radiotherapy modalities in NSCLC patients with brain metastasis were included. The primary outcomes were (a) the efficacy of anlotinib and radiotherapy on the intracranial lesions and OS and (b) the effectiveness of combined anlotinib and radiotherapy versus radiotherapy alone in NSCLC patients with brain metastasis. The secondary outcome was the efficacy of anlotinib and radiotherapy on extracranial progression. We used a combination of keywords and MeSH terms including ‘non-small cell lung cancer’ OR ‘NSCLC’, ‘brain metastases’, ‘anlotinib’, ‘radiotherapy’, ‘radiation therapy’, and ‘combined treatment’, among others. Boolean operators (AND, OR) were applied as appropriate to optimize the search strategy across databases. Results: Nine studies met the inclusion criteria, comprising 210 patients in the combination group and 228 patients in the radiotherapy alone group. The combination of anlotinib with radiotherapy showed a significant improvement in iPFS compared to radiotherapy alone, with a pooled risk ratio (RR) for iORR of 1.18 (95% CI: 1.00–1.39) and a pooled SMD for OS of 0.03 (95% CI: −0.29, 0.36). Radiotherapy combined with anlotinib also demonstrated enhanced intracranial and extracranial control rates. Conclusions: Anlotinib combined with radiotherapy, especially WBRT, offers a promising treatment strategy for NSCLC patients with brain metastasis, improving intracranial control. Further large-scale randomized controlled trials are needed to confirm these findings and optimize treatment protocols.