Publications by authors named "Abas"

Two patients of early adolescence age presented with medically resistant primary dysmenorrhoea. Imaging (MRI scan) confirmed an asymmetric uterine septum with a unilaterally obstructed horn with haematometra. Laparotomy and Tompkins metroplasty was performed to unify the uterine cavity in each case, a technique not used for this condition before.

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Background: Increased global trade, while beneficial economically, can also increase the spread of vector-borne diseases, particularly those transmitted by Aedes mosquitoes spreading via trade routes. Given the heightened trade-induced activity at ports of entry, it is particularly crucial to assess the risk of mosquito-borne diseases in these settings. This study compared the risks of Aedes-borne disease in and around the eastern Tanzanian seaport of Tanga.

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Background: Little is known about the prevalence of post-traumatic stress disorder (PTSD) in emerging adults living with HIV in low-income countries.

Aims: Determine prevalence of trauma exposure, prevalence of probable PTSD and conditional prevalence of probable PTSD for different traumatic events; and better understand the experiences of individuals with HIV and PTSD.

Method: This mixed method study used secondary data from a cross-sectional survey of people ( = 222) aged 18 to 29 living with HIV in Zimbabwe and primary qualitative data collection.

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The human epidermal growth factor receptor 2 (HER2) gene is a critical biomarker for determining amplification status and targeting clinical therapies in breast cancer treatment. This study introduces a computer-aided method that automatically measures and scores HER2 gene status from invasive tissue regions of breast cancer using whole slide images (WSI) through silver hybridization (SISH) staining. Image processing and deep learning techniques are employed to isolate untruncated and non-overlapping single nuclei from cancer regions.

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Designing new compounds from existing chemotherapeutic drugs to enhance inhibitory effects on tumor cells while overcoming multidrug resistance is one of the important strategies for new drug discovery in medicinal chemistry. A new series of urea and thiourea derivatives based on Lenalidomide as potential anticancer agents have been designed and synthesized. In vitro anticancer activity assay against Caki cancer cells and HUVEC endothelial cells revealed that 1-(4-methylphenyl)-3-[2-(2,6-dioxopiperidin-3-yl)-1-oxoisoindolin-4-yl]urea (11) exhibited the highest anticancer activity and selectivity in the series with IC values of 9.

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The UHPLC-MS/MS metabolomics approach was employed to profile and characterize multi-components in Halamphora sp. extracted with different solvents that contribute to quorum sensing inhibitory (QSI) activity. A total of 37 and 34 metabolites were tentatively identified from negative and positive ion modes, respectively.

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Article Synopsis
  • Fluorescence in situ hybridization (FISH) is the standard method for checking HER2 status in breast cancer, but it has downsides like needing special training and facing signal degradation; an alternative method, silver-enhanced in situ hybridization (SISH), offers a more durable solution for analysis via bright-field microscopy.* -
  • This study introduces a novel deep learning approach to classify Normal, Amplified, and Non-Amplified regions in HER2-SISH whole slide images, aiming to improve accuracy over traditional methods.* -
  • Using a private dataset, the researchers achieved a striking 99.9% patch-level accuracy and an average accuracy of 98% through k-fold cross-validation, suggesting that this deep
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Background: The increasing number of young adults seeking cheaper and easily accessible orthodontic treatment from unlicensed practitioners in Malaysia poses significant risks to patients. Therefore, it is essential to evaluate their motivations and awareness regarding such practices. The objective of our study was to assess the knowledge, awareness, and perceptions of non-dentists offering orthodontic treatment among the Malaysian young adult population.

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  • The global population growth is driving the need for sustainable energy sources like bioethanol, but traditional methods threaten food supplies, making them less viable.
  • New technologies and low-cost raw materials are essential to make bioethanol production more economically feasible compared to first-generation methods.
  • Solid-state fermentation (SSF) offers a promising solution by using microorganisms on solid substrates, which improves efficiency, reduces waste, and eliminates the need for sugar extraction in bioethanol production.
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Recent studies pointed out the modulation of imidazoline I receptors (I-IR) by selective ligands as a putative strategy to face neurodegenerative diseases. Foregoing the classical 2-imidazoline/imidazole-containing I-IR ligands, we report a family of bicyclic α-iminophosphonates endowed with high affinity and selectivity upon I-IR and we advanced a representative compound B06 in preclinical phases. In this paper, we describe the synthetic possibilities of bicyclic α-iminophosphonates by exploring its ambivalent reactivity, leading to unprecedented molecules that showed promising activities as I-IR ligands in human brain tissues and good BBB permeation capabilities.

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Hormone replacement therapy is used to treat postmenopausal syndrome caused by estrogen deficiency, but it has been linked to an increased risk of breast cancer. In India, L. is traditionally used to treat menstrual problems; however, there is a lack of mechanistic evidence of its phytoestrogenicity.

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Background: Cardiovascular diseases (CVDs) are the most common cause of morbidity and mortality among patients with type 2 diabetes mellitus (T2DM). There is a paucity of data on the pattern of first manifestation of CVD and the outcome among patients with T2DM in Cameroon.

Objectives: We aimed to examine the pattern of the first manifestation of CVD and the outcome among patients with T2DM.

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  • Rhinovirus (RV) is a leading cause of colds and asthma, and while curcumin has antiviral properties, it has poor pharmacokinetics. New curcumin-like compounds BDHBC and DHHPD show improved solubility and stability.
  • The study aimed to compare the antiviral effects of curcumin, BDHBC, and DHHPD in an RV infection model using various assays to evaluate their effectiveness.
  • Results indicated that BDHBC was the most effective antiviral agent, particularly in post-treatment scenarios, showing strong inhibition of RV infection compared to the other compounds, and suggesting potential for use as an antiviral treatment.
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With the goal to support effective water resource management, water quality models have gained popularity as tools for evaluating the distributions of pollutants and sediments. This work focuses on the application of the numerical solution of an advection-dispersion-reaction (ADR) water quality model for rivers and streams to a major Philippine waterway, the Pasig River. The water quality constituent is described by a system of reaction and advection-dispersion-reaction equations.

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Background Diabetes mellitus is a significant global health problem characterized by high blood sugar levels due to either a lack of insulin or insensitivity to it. Concerns about diabetes complications are growing both globally and locally, making effective preventive measures crucial to tackle these complications. This research aimed to determine the level of knowledge and awareness regarding type 2 diabetes complications among patients in Homs, Syria, during the ongoing conflict.

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Recent advancements in medical imaging have greatly enhanced the application of computational techniques in digital pathology, particularly for the classification of breast cancer using in situ hybridization (ISH) imaging. HER2 amplification, a key prognostic marker in 20-25% of breast cancers, can be assessed through alterations in gene copy number or protein expression. However, challenges persist due to the heterogeneity of nuclear regions and complexities in cancer biomarker detection.

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Management of nonhealing corneal ulcers is challenging as it can lead to complications such as melting, descemetocele, and perforation, which can be prevented by amniotic membrane graft (AMG). The absence of any review (English language) on AMG for corneal ulcers prompted us to conduct this review. We looked for clinical trials (randomized and controlled) on the effect of AMG combined with other treatments, through various search engines utilizing the terms amniotic membrane and corneal ulcer.

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Background: Stroke is rapidly developing clinical signs of focal/ global disturbance of cerebral function, with symptoms lasting more than 24 h and leading to death. Data showed that stroke deaths in Ethiopia reached nearly seven percent of total deaths. Despite this report, there is a paucity of investigations about the problem.

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Within fluid mechanics, the flow of hybrid nanofluids over a stretching surface has been extensively researched due to their influence on the flow and heat transfer properties. Expanding on this concept by introducing porous media, the current study explore the flow and heat and mass transport characteristics of hybrid nanofluid. This investigation includes the effect of magnetohydrodynamic (MHD) with chemical reaction, thermal radiation, and slip effects.

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Article Synopsis
  • The text presents a new type of piezoelectric stepper motor characterized by its compact design, stiffness, and ability to operate in any direction, achieved through a simple structure involving piezo stacks and spring fingers.
  • By applying controlled voltage signals to piezo stack pairs, the motor generates precise movement, with a low operational threshold of 8V for downward and 10V for upward movements, confirming its effectiveness for both vertical and horizontal applications.
  • This motor offers step sizes between 0.3 to 7.4 µm at 20 Hz, a travel range of about 5 mm, and a lifting capacity of 220 g, making it suitable for advanced applications like scanning probe
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Objective: Inflammatory diseases are influenced by oxidative stress. Oxidatively damaged 8-oxoG in DNA is linked to inflammation. The enzyme OGG1 is responsible for repairing the damaged base in the DNA which is linked to pro-inflammatory signaling and severe inflammation.

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The efficiency and productivity evaluation process commonly employs Data Envelopment Analysis (DEA) as a performance tool in numerous fields, such as the healthcare industry (hospitals). Therefore, this review examined various hospital-based DEA articles involving input and output variable selection approaches and the recent DEA developments. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) methodology was utilised to extract 89 English articles containing empirical data between 2014 and 2022 from various databases (Web of Science, Scopus, PubMed, ScienceDirect, Springer Link, and Google Scholar).

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Hippuristanol is a marine derived steroidal natural product with promising anticancer activity. However, instability at low pH has precluded its development as an efficient therapy. We addressed this limitation by replacing one of the oxygen atoms of the spiroketal moiety with a carbon atom.

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In an effort to develop new and effective therapeutic agents for Alzheimer's disease, a series of hydrazone derivatives bearing piperidine rings have been designed and synthesized. The chemical structures of the compounds were characterized by various spectroscopic techniques. In vitro antioxidant and cholinesterase activities of the compounds were evaluated.

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