Publications by authors named "Mohammed Ahmad"

Article Synopsis
  • ADHD is a common neurodevelopmental disorder often treated with stimulant medications, which can cause thermoregulatory dysfunction and increase the risk of heat-related events.
  • A study using electronic medical records compared ADHD patients on stimulant medications to those not receiving them, tracking instances of heat-related illnesses over one year.
  • Results showed that patients on stimulant medications had a lower risk and fewer heat-related illnesses, implying that these medications may help in preventing such issues among ADHD patients.
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Rhabdomyolysis, a severe condition marked by the breakdown of muscle tissue, leads to the release of intracellular contents into the bloodstream. This condition can be triggered by a range of factors, including intense physical activity, traumatic injuries, certain medications, and infections. Diagnosis typically involves detecting elevated creatine phosphokinase (CPK) levels alongside characteristic clinical symptoms.

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Dengue fever is a rapidly spreading mosquito-borne viral disease, increasingly endemic in tropical and subtropical regions. This case report details the clinical presentation of a 52-year-old male who developed severe symptoms shortly after returning from a two-week trip to El Salvador, an area known for dengue endemicity. The patient presented with a five-day history of high-grade fever, malaise, diarrhea, dizziness, and intermittent blurry vision, accompanied by chills, dry cough, headaches, and generalized pain.

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  • Caesarean section defects, or "niches," are prevalent complications in women with a history of CS, affecting over 50% of women studied in Egypt, and are primarily diagnosed via transvaginal ultrasound (TVU).
  • The research compared the diagnostic effectiveness of saline-infused sonohysterography (SISH) to TVU in identifying these niches among 60 non-pregnant women with previous cesarean sections, collecting data on niche dimensions and patient demographics.
  • Results indicated that SISH provided clearer measurements and detected niches more effectively, especially in younger women and those with multiple prior CSs, affirming its superiority over TVU for assessing uterine niches.
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Colorectal cancer (CRC) has become a significant global health concern and ranks among the leading causes of morbidity and mortality worldwide. Due to its malignant nature, current immunotherapeutic treatments are used to tackle this issue. However, not all patients respond positively to treatment, thereby limiting clinical effectiveness and requiring the identification of novel therapeutic targets to optimise current strategies.

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Article Synopsis
  • ADHD is a neurodevelopmental disorder that leads to issues with attention, hyperactivity, and impulsivity, affecting daily life from childhood into adulthood.
  • Heat stroke is a serious condition that can cause severe health problems, including seizures and high body temperature, and is especially dangerous for young athletes.
  • The case discussed involves a young athlete with ADHD who experienced heat stroke, which may have been influenced by his ADHD medication, Adderall.
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  • Latex-fruit syndrome is a hypersensitivity reaction often seen in individuals allergic to natural rubber latex (NRL), affecting 30-50% of these patients.
  • It is caused by the cross-reactivity of IgE antibodies to certain plant-derived foods, which have expanded to include various fruits and vegetables like avocado, banana, and tomato.
  • The case presented highlights an art student who developed this syndrome due to extended exposure to NRL in their art supplies.
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Abdominopelvic vascular compression syndromes (VCS) refer to conditions where blood vessels in the abdomen or pelvis are compressed by nearby structures, leading to various symptoms and complications. These conditions include superior mesenteric artery syndrome (SMAS), nutcracker syndrome (NCS), May-Thurner syndrome (MTS), and median arcuate ligament syndrome (MALS). Each syndrome is characterized by specific compressions of blood vessels, resulting in symptoms such as pain, nausea, vomiting, weight loss, leg swelling, and other related issues.

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Hyperammonemia is a metabolic disorder characterized by supraphysiologic ammonia (NH) concentrations in the blood. Although usually seen in adults with liver disease, hyperammonemia is a notable complication in 4.1% of lung transplants.

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Dysregulated neutrophil recruitment drives many pulmonary diseases, but most preclinical screening methods are unsuited to evaluate pulmonary neutrophilia, limiting progress towards therapeutics. Namely, high throughput therapeutic screening systems typically exclude critical neutrophilic pathophysiology, including blood-to-lung recruitment, dysfunctional activation, and resulting impacts on the air-blood barrier. To meet the conflicting demands of physiological complexity and high throughput, we developed an assay of 96-well Leukocyte recruitment in an Air-Blood Barrier Array (L-ABBA-96) that enables -like neutrophil recruitment compatible with downstream phenotyping by automated flow cytometry.

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Background: Infection prevention (IP) measures are designed to mitigate the transmission of pathogens in healthcare. Using large-scale viral genomic and social network analyses, we determined if IP measures used during the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic were adequate in protecting healthcare workers (HCWs) and patients from acquiring SARS-CoV-2.

Methods: We performed retrospective cross-sectional analyses of viral genomics from all available SARS-CoV-2 viral samples collected at UC San Diego Health and social network analysis using the electronic medical record to derive temporospatial overlap of infections among related viromes and supplemented with contact tracing data.

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Siglecs are well known immunotherapeutic targets in cancer. Current checkpoint inhibitors have exhibited limited efficacy, prompting a need for novel therapeutics for targets such as Siglec-15. Presently, small molecule inhibitors targeting Siglec-15 are not explored alongside characterised regulatory mechanisms involving microRNAs in CRC progression.

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Article Synopsis
  • - Enolase is an enzyme that helps convert 2-phosphoglycerate (2PG) to phosphoenolpyruvate (PEP) in glycolysis, but the reverse reaction (PEP to 2PG) hasn't been fully understood until now.
  • - This research provides structural insights into Mycobacterium tuberculosis enolase, revealing how 2PG can exist in both a common and an alternate conformation during the conversion process.
  • - Key findings suggest that, unlike in the forward reaction, magnesium is not essential for the reverse reaction, and the alternate conformation of 2PG enhances its release from the enzyme's active site, indicating a new mechanism for this conversion.
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Background: COVID-19 was declared as a Public Health Emergency of International Concern on 30th January 2020. Compared to the general population, healthcare workers and their families have been identified to be at a higher risk of getting infected with COVID-19. Therefore, it is crucial to understand the risk factors responsible for the transmission of SARS-CoV-2 infection among health workers in different hospital settings and to describe the range of clinical presentations of SARS-CoV-2 infection among them.

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Given the paucity of antiviral treatments for monkeypox disease, caused by the Monkeypox virus (MPXV), there is a pressing need for the development/identification of new drugs to treat the infection. MPXV possesses a linear dsDNA genome that is replicated by a DNA replication complex of which DNA polymerase (DPol) forms an important component. Owing to the importance of DPol in the viral life cycle, identifying/designing small molecules abolishing its function could yield new antivirals.

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Adenomyosis is a disease related to the presence of endometrial glands and stromal cells within the uterine myometrium that used to be linked to females that are more than 40 years old and multiparous. Nowadays, females are delaying their pregnancies to their third or fourth decade, and as diagnostic approaches evolve, the disease has become a common problem for females who desire pregnancy. The aim of this study is to identify the physio-pathological factors by which adenomyosis causes infertility and pregnancy complications, as well as the possible results from infertility treatments and the most common pregnancy complications that females with adenomyosis face.

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The world has taken proactive measures to combat the pandemic since the coronavirus disease 2019 (COVID-19) outbreak, which was caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). These measures range from increasing the production of personal protective equipment (PPE) and highlighting the value of social distancing to the emergency use authorization (EUA) of therapeutic drugs or antibodies and their appropriate use; nonetheless, the disease is still spreading quickly and is ruining people's social lives, the economy, and public health. As a result, effective vaccines are critical for bringing the pandemic to an end and restoring normalcy in society.

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Perianal fistulas in Crohn's disease (CD) are often recurring and challenging to treat. This systematic review aimed to evaluate the medical, surgical, and combination treatment options and provide an overview of their efficacy. We performed this systematic review following the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines.

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Systemic lupus erythematosus (SLE) is a chronic inflammatory connective tissue disease with varying clinical manifestations. Recent studies have proposed that leptin may be related to SLE development. This study aims to assess current information regarding the relationship between leptin and SLE.

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In brain arteriovenous malformations (AVMs), there is mismatched communication between arteries and veins, causing a nidal bed between them. This systematic review explores whether a magnetic resonance angiogram (MRA) can be used as a diagnostic imaging tool instead of a digital subtraction angiogram (DSA). Utilizing PubMed, Cochrane, and Google Scholar, as well as the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines for article selection, a literature search was conducted over the past five years.

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Article Synopsis
  • Colorectal cancer (CRC) is a leading cause of cancer-related deaths globally, with early diagnosis being crucial for improving patient outcomes.
  • Despite ongoing research into biomarkers for early detection and treatment, progress in managing advanced CRC remains limited, resulting in high mortality rates.
  • The review focuses on the role of chemokines and their receptors in CRC, exploring their potential as personalized therapeutic targets and their involvement in tumor microenvironment regulation and drug resistance.
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Conservation translocation and reintroduction for the purpose of repopulating and reinforcing extirpated or depleted populations has been recognised as an important conservation tool, particularly for gibbon conservation in the immediate future. Feasibility assessments involving multiple factors, including taxonomic and genetic assessment of rescued and captive gibbons, are imperative prior to translocation and reintroduction programmes. In this study, we attempt to determine the subspecies and origin of captive , White-handed gibbons, from Peninsular Malaysia to assist in future translocation and reintroduction programmes.

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Apart from the canonical fingers, palm and thumb domains, the RNA dependent RNA polymerases (RdRp) from the viral order Nidovirales possess two additional domains. Of these, the function of the Nidovirus RdRp associated nucleotidyl transferase domain (NiRAN) remains unanswered. The elucidation of the 3D structure of RdRp from the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), provided the first ever insights into the domain organisation and possible functional characteristics of the NiRAN domain.

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Background: Ongoing protests in Gaza have led to numerous injuries, including long-bone fractures. We investigated assessment of pain severity and strategies for pain management in the emergency department. As no local guidelines exist, delivered care was compared with the guidance of the UK National Institute for Health and Care Excellence (NICE).

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