Saja Adel Fakhraldeen

The pigment profile of seaweeds thriving in the Arabian Gulf, characterized by high temperature, salinity, and high UV index, showed a high proportion of fucoxanthin, indicating its potential role in photoprotection. To investigate this, pure fucoxanthin was isolated from 10 seaweed species that grow under prevailing extreme conditions, and its antioxidant, UV-protective, anti-elastase, anti-collagenase and anti-tyrosinase properties were evaluated. Significant interspecies variation was observed in both yield and bioactivity, with seaweeds surviving extreme summer conditions exhibiting higher fucoxanthin content and enhanced UV-protective properties. Fucoxanthin isolated from Canistrocarpus cervicornis, Feldmannia mitchelliae, Padina gymnospora, and Sargassum angustifolium showed high antioxidant, anti-elastase, anti-collagenase, anti-tyrosinase and UV- protection properties. Structural characterization by NMR revealed variations in the R group among the fucoxanthin isolates. Fucoxanthin derivatives bearing R group –CH₂OCO(CH₂)₄CH₃ (hexanoyloxyfucoxanthin) demonstrated superior bioactivity compared to those containing –CH₂OCO(CH₂)₂CH₃ (butanoyloxyfucoxanthin) and parent compound containing –CH₃ (fucoxanthin), indicating a structure–activity relationship. Stability studies have shown that fucoxanthin remains stable at temperatures up to 70 °C and is resistant to oxidizing agents such as H₂O₂. However, it is susceptible to high-intensity artificial UV-radiation and is highly sensitive to pH changes above 5. Collectively, these findings highlight the adaptive structural diversity of fucoxanthin from seaweeds of the Arabian Gulf and emphasize the importance of species selection in maximizing bioactivity.

Sabkhas, hypersaline ecosystems along Kuwait’s coastal zone, are extreme environments that harbor diverse halophilic microorganisms with significant biotechnological potential. Despite this, they remain underexplored, particularly in the context of enzymes that can function under high salinity. The aim of this study is to identify bacterial isolates from Kuwait’s sabkhas that produce α-amylase under extreme environmental conditions and to purify and characterize the resulting halotolerant α-amylase. Among the seven α-amylase-producing isolates, Priestia sp. W243, isolated from Mina Abdullah, exhibited the highest enzyme production under optimal growth conditions of pH 9.0, 37 °C, and 7.5% NaCl. A novel halotolerant α-amylase with a remarkably high specific activity (8112.1 U/mg) was purified from this isolate using ultrafiltration, ion-exchange chromatography, and gel-filtration. The purified enzyme, with a molecular weight of 25 kDa, showed optimal activity at 40 °C, pH 8, and 3% NaCl. Notably, the enzyme remained active in the absence of salt and up to 15% NaCl, demonstrating exceptional halotolerance. Metal ion profiling revealed that enzyme activity was significantly enhanced by Co²⁺, whereas Ca²⁺ had a comparatively moderate effect on enzyme activity. When the effects of metal chelators were examined, EDTA, a strong metal chelator, inhibited the enzyme. However, the enzyme remained active when Ca²⁺ was specifically removed using EGTA, suggesting that this α-amylase may be a cobalt-dependent metalloenzyme, which is an unusual characteristic among known α-amylases. Additionally, the enzyme retained its catalytic activity under reducing conditions (e.g., in the presence of DTT and β-mercaptoethanol), indicating structural stability is independent of disulfide bonds. These unique properties distinguish this α-amylase from typical salt- or calcium-dependent counterparts and highlight its potential for industrial applications in high-salt food processing, baking, brewing, and environmental remediation.

Introduction: The northwest Arabian Gulf encounters significant anthropogenic pressures, including nutrient enrichment from coastal development and effluent discharge.Methods: This study presents the first shotgun metagenomics-based characterization of microbial communities in Kuwaiti waters of the northwest Arabian Gulf, focusing on Kuwait’s first Marine Protected Area (MPA) in Sulaibikhat Bay, a vital nursery ground for commercially important fish.Results: Analysis revealed significantly higher microbial diversity within the MPA compared to adjacent waters, with Rhodobacteraceae (27.8%) and Flavobacteriaceae (15.3%) being dominant. Elevated inorganic phosphorus, nitrogen, and salinity were key factors driving this diversity. Multivariate analysis highlighted phosphate as a critical component affecting the MPA microbial community structure, particularly for the families Microbacteriaceae, Flavobacteriaceae, and Rhodobacteraceae.Discussion: This study underscores the ecological importance of MPAs and highlights the impact of nutrient enrichment and other environmental stressors on microbial diversity, emphasizing the need to reduce nutrient influx to mitigate eutrophication and enhance marine ecosystem resilience in stressed environments.

The territorial waters of Kuwait provide a unique niche for microbial communities given the environmental extremes to which they are exposed. Shotgun metagenomic sequencing (SGM) is a popular approach to collectively characterize the biological entities residing within a given environment. In the present chapter, we utilize the Metagenomics Rapid Annotation using Subsystem Technology (MG-RAST) software/platform to analyse SGM data and gain insights regarding the dominant bacterial communities residing within Kuwaiti territorial waters of the northwest Arabian Gulf, along with the main functions they perform. The most prevalent bacterial genera detected were Cytophaga (21-36%) and Flavobacterium (8-24%). The most highly abundant level 1 KEGG pathway reported was metabolism (59-62%). This was followed by genetic information processing (19-21%), environmental information processing (11-12%), and cellular processes (3-5%). The information generated in the present investigation formulates a baseline for the combined utilization of SGM and MG-RAST to perform further research aimed at biomonitoring the marine microbial communities under the influence of anthropogenic and/or environmental stresses within the region.

Kuwaiti territorial waters of the northwest Arabian Gulf represent a unique aquatic ecosystem prone to various environmental and anthropogenic stressors that pose significant constraints on the resident biota which must withstand extreme temperatures, salinity levels, and reducing conditions, among other factors to survive. Such conditions create the ideal environment for investigations into novel functional genetic adaptations of resident organisms. Firstly, however, it is essential to identify said organisms and understand the dynamic nature of their existence. Thus, this study provides the first comprehensive analysis of bacterial and archaeal community structures in the unique waters of Kuwait located in the Northwest Arabian Gulf and analyzes their variations with respect to depth, season, and location, as well as their susceptibility to changes in abundance with respect to various physicochemical parameters. Importantly, this study is the first of its kind to utilize a shotgun metagenomics approach with sequencing performed at an average depth of 15 million paired end reads per sample, which allows for species-level community profiling and sets the framework for future functional genomic investigations. Results showed an approximately even abundance of both archaeal (42.9%) and bacterial (57.1%) communities, but significantly greater diversity among the bacterial population, which predominantly consisted of members of the Proteobacteria, Cyanobacteria, and Bacteroidetes phyla in decreasing order of abundance. Little to no significant variations as assessed by various metrics including alpha and beta diversity analyses were observed in the abundance of archaeal and bacterial populations with respect to depth down the water column. Furthermore, although variations in differential abundance of key genera were detected at each of the three sampling locations, measurements of species richness and evenness revealed negligible variation (ANOVA p0.001) between the various locations. Interestingly, abundance of archaeal community members showed a significant increase (log₂ median ratio of RA = 2.6) while the bacterial population showed a significant decrease (log₂ median ratio = -1.29) in the winter season. These findings were supported by alpha and beta diversity analyses as well (ANOSIM r² = 0.253; p>0.01). Overall, this study provides the first in-depth analysis of both bacterial and archaeal community structures developed using a shotgun metagenomic approach in the waters of the Northwest Arabian Gulf thus providing a framework for future investigations of functional genetic adaptations developed by resident biota attempting to survive in the uniquely extreme conditions to which they are exposed.

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RNA binding proteins (RBPs) regulate expression of large cohorts of RNA species to affect programmatic changes in cellular phenotypes. In order to describe the function of RBPs within a cell, it is key to identify their mRNA binding partners. This is often done by cross-linking nucleic acids to RBPs, followed by chemical release of the nucleic acid fragments for analysis. However, this methodology is lengthy, involves complex processing leading to extraordinary losses, requires large amounts of starting materials, and is prone to artifacts due to the labile nature of mRNA. To evaluate potential alternative technologies, we tested “exclusion-based” purification of immunoprecipitates (oil-based IFAST™ or air-based SLIDE™), and report here that these methods can efficiently, rapidly and specifically isolate RBP-RNA complexes with minimal handling. The analysis starts with >100x less material than for techniques that include cross-linking. Depending on the specific antibody used, 50-100% of starting protein is retrieved, allowing the assay of endogenous levels of RBP instead of tagged and over-expressed ectopic proteins. Isolated protein and nucleic acid components are purified and analyzed using standard techniques to provide a comprehensive portrait of RBP complexes. Using exclusion-based techniques, we show that the mRNA binding partners for CRD-BP/IMP1/IGF2BP1/ZBP1 in cultured mammary epithelial cells are enriched in mRNAs important for de-toxifying superoxides (glutathione metabolic enzymes) and other mRNAs encoding mitochondrial proteins.

The research and development (R&D) expenditure in Kuwait is insufficient to lead to innovation and a knowledge economy. Investment in R&D has been shown to sustain elevated economic performance. The objective of this study is to explore the association between three competing dimensions of R&D indicators that lead to sustainable economic performance within any given country, namely, R&D expenditure, the number of researchers, and the number of patent rights, using time-series data collected over a 20-year period (1996–2016) by the World Bank Group. R&D indicators were compared between high- and middle-income countries including models from Asian (South Korea, Singapore, and Malaysia) and European (Finland and Ireland) countries as well as the State of Kuwait. Moreover, a case study describing R&D investments in Kuwait is presented. Overall, the results reveal higher R&D spending, number of researchers, and gross domestic product (GDP) per capita for the Asian and European models. Current R&D expenditure in Kuwait is estimated at 0.08% of GDP (2016), which is significantly lower than the mean of the middle-income countries (1.58%). Furthermore, the number of researchers (per million) in Kuwait (386) is less than half of the mean number of researchers in middle-income countries (775) (2015). Low R&D investments in the State of Kuwait has gradually led to a decreased GDP per capita. Regression analysis shows that GDP per capita can be predicted solely based on the number of researchers (beta = 0.780, R² = 0.608). The number of researchers is the most crucial variable to predict GDP per capita, and the R&D expenditure is a good indicator of the number of researchers. These findings offer invaluable insight into the sustainable development goals (SDG 9). To our knowledge, this paper presents the first application of the effect of R&D on sustainable economic performance with reference to the SDG target 9.5 “Research & Development”. Thus, in order to enhance scientific research (both academic, professional, and industrial), countries need to increase the number of researchers, and these actions are necessary to introduce sustainable growth to GDP.

Kuwait Vision 2035 is an initiative that was launched in 2017 by His Highness the Emir of the State of Kuwait Sheikh Sabah Al-Ahmad Al-Jaber Al-Sabah. This initiative includes the implementation of a detailed development plan aimed at transforming the state of Kuwait into a regional leader in science, technology, and innovation. Health research will arguably prove to be one of the most impactful research arenas when it comes to accomplishing the goals set forth by the Kuwait Vision 2035 Development Plan. The high impact of health research is derived from its capacity to aid in the establishment of a knowledge-based health industry. The state of Kuwait lacks a system for promoting and managing national R&D efforts. At present, the research and development (R&D) expenditure in the state of Kuwait is far below the international standards that have been shown to lead to innovation and the subsequent development of a knowledge-based economy. Improvement of the weak and unstructured existing R&D apparatus in the State of Kuwait is among the most urgent challenges facing the nation as it strives toward innovation and development of a knowledge-based economy. Developing health research capacities in the State of Kuwait can significantly contribute toward improving public health, health promotion, disease prevention and treatment, and overall human welfare. Importantly, the positive impacts of such extensive benefits will not be restricted to the state of Kuwait and its citizens, but may in fact reap benefits for the global society as a whole. This article first analyzes the current status of healthcare services and health science research in the State of Kuwait, and then summarizes some essential R&D design principles that Kuwait needs to implement in order to achieve the milestones set forth in the Kuwait Vision 2035 Development Plan.