Publications by authors named "Masmoudi A"

Thermal springs harbour microorganisms, often dominated by cyanobacteria, which form biofilms and microbial mats. These phototrophic organisms release organic exudates into their immediate surroundings, attracting heterotrophic bacteria that contribute to the diversity and functioning of these ecosystems. In this study, the microbial mats from a hydrothermal pool in the Ksar Ghilane oasis in the Grand Erg Oriental of the Desert Tunisia were collected to obtain cyanobacterial cultures formed by single cyanobacterial species.

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Globular proteins (GPs) play vital roles in a wide range of biological processes, encompassing enzymatic catalysis and immune responses. Enzymes, among these globular proteins, facilitate biochemical reactions, while others, such as haemoglobin, contribute to essential physiological functions such as oxygen transport. Given the importance of these considerations, accurately identifying Globular proteins is essential.

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Angiogenic proteins (AGPs) play a critical role in both pathological and physiological activities, making them key therapeutic targets in diseases like cancer, heart disease, and stroke. Traditional methods for identifying AGPs are labor-intensive and time-consuming, creating a need for more efficient approaches. This study addresses this challenge by developing a novel computational model, Ens-Deep-AGP, designed to enhance AGP prediction.

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Biomedical relation classification has been significantly improved by the application of advanced machine learning techniques on the raw texts of scholarly publications. Despite this improvement, the reliance on large chunks of raw text makes these algorithms suffer in terms of generalization, precision, and reliability. The use of the distinctive characteristics of bibliographic metadata can prove effective in achieving better performance for this challenging task.

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Article Synopsis
  • The study aimed to identify birth defects in the maternity and neonatology center of Tunis and examine related epidemiological factors.
  • A retrospective analysis of 2,489 malformed cases showed a variety of birth defects, with neurological anomalies being the most prevalent.
  • The findings highlighted the need for a national registry of birth defects in Tunisia to better understand and manage these health issues.
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The increasing salinity and alkalinity of soils pose a global challenge, particularly in arid regions such as Tunisia, where about 50% of lands are sensitive to soil salinization. Anthropogenic activities, including the use of treated wastewater (TWW) for irrigation, exacerbate these issues. Haloalkaliphilic bacteria, adapted to TWW conditions and exhibiting plant-growth promotion (PGP) and biocontrol traits, could offer solutions.

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The present study examines the use of waste cooking oil (WCO) as a substrate for medium-chain-length polyhydroxyalkanoates (mcl-PHA) production by S211. The genome analysis revealed that the S211 strain has a mcl-PHA cluster () encoding two class II PHA synthases (PhaC1 and PhaC2) separated by a PHA depolymerase (PhaZ), a transcriptional activator (PhaD) and two phasin-like proteins (PhaFI). Genomic annotation also identified a gene encoding family I.

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Considering the current growing interest in new and improved enzymes for use in a variety of applications, the present study aimed to characterize a novel detergent-stable serine alkaline protease from the extremophilic actinobacterium TL13 (MmSP) using a combined in silico and experimental approach. The MmSP showed a close phylogenetic relationship with high molecular weight S8 peptidases of species. Moreover, its physical and chemical parameters computed using Expasy's ProtParam tool revealed that MmSP is hydrophilic, halophilic and thermo-alkali stable.

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Epigenetic proteins (EP) play a role in the progression of a wide range of diseases, including autoimmune disorders, neurological disorders, and cancer. Recognizing their different functions has prompted researchers to investigate them as potential therapeutic targets and pharmacological targets. This paper proposes a novel deep learning-based model that accurately predicts EP.

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Fins are widely used in many industrial applications, including heat exchangers. They benefit from a relatively economical design cost, are lightweight, and are quite miniature. Thus, this study investigates the influence of a wavy fin structure subjected to convective effects with internal heat generation.

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Article Synopsis
  • * The study introduces Deep-VEGF, a new computational model developed using advanced deep learning techniques to predict VEGF more accurately.
  • * By creating a unique feature extraction method and integrating various deep learning models, Deep-VEGF outperformed existing predictors, showing promise for accelerating research and drug discovery related to VEGF.
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Background: Despite the existing evidence that waist circumference (WC) provides independent and additive information to BMI when predicting morbidity and mortality, this measurement is not routinely obtained in clinical practice. Using computed tomography (CT) scan images, mobile health (mHealth) has the potential to make this abdominal obesity parameter easily available even in retrospective studies.

Objective: This study aimed to develop a mobile app as a tool for facilitating the measurement of WC based on a cross-sectional CT image.

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Article Synopsis
  • Basaloid follicular hamartoma is a rare, benign tumor of hair follicles, which can sometimes be linked to basal cell carcinoma, as demonstrated in a patient with congenital lesions developing multiple carcinomas.
  • A 76-year-old man presented with erythematous papules that evolved into nodules, which were analyzed using various dermatological assessments and histopathology.
  • The study concluded that while some dermoscopic features of basaloid follicular hamartoma have been identified, more research is needed to confirm consistent diagnostic indicators.
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Drug reaction with eosinophilia and systemic symptoms (DRESS) is a rare drug reaction characterized by a skin rash, eosinophilia, and organ involvement. Our purpose is to focus on the clinical and epidemiological characteristics of DRESS in the elderly and to identify the incriminated drugs. This is a retrospective study including patients, hospitalized for DRESS with a RegiSCAR ≥4.

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Dipeptidyl peptidase-4 inhibitors (DPP-4i), or gliptins, are a widely used glucose-lowering agents. A growing amount of evidence pointed to a possible role of DPP-4i in the induction of bullous pemphigoid (BP), which is an auto-immune skin blistering disease that mainly affects the elderly. In this article we discuss a case of DPP-4i associated BP and we provide an updated review of the current knowledge regarding this emerging entity.

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Article Synopsis
  • * A study examined 13 patients, finding that most were middle-aged men (average age 53), with a majority of lesions located on sun-exposed areas like the face, especially around the moustache.
  • * Histological analysis revealed distinctive features, such as growth patterns of basaloid cells and horn cysts, underscoring the importance of a biopsy for accurate diagnosis and ruling out cancer.
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Over the last decades, losses of bee populations have been observed worldwide. A panoply of biotic and abiotic factors, as well as the interplay among them, has been suggested to be responsible for bee declines, but definitive causes have not yet been identified. Among pollinators, the honeybee Apis mellifera is threatened by various diseases and environmental stresses, which have been shown to impact the insect gut microbiota that is known to be fundamental for host metabolism, development and immunity.

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Exclusive acral involvement in neonatal pemphigus is unusual. Blisters in neonatal bullous pemphigoid, affecting 2%-3% of newborns of mothers with gestational pemphigoid, can be located in the trunk, limbs and acral areas. Unlike neonatal bullous pemphigoid, which can appear up to 5 days after birth, neonatal pemphigus is often revealed at birth.

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Introduction: Lichen sclerosus is a chronic inflammatory and atrophic dermatosis affecting preferentially the anogenital region. However, the cutaneous involvement remains less known and studied.

Methods: We collected 17 patients to study the clinical and therapeutic features of cutaneous lichen sclerosus.

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Introduction: in colon cancer surgery, anastomotic fistula (AF) is considered the most feared complication. The purpose of this study was to identify predictive factors associated with anastomotic fistula after colon cancer surgical resection and to describe the impact of this complication on mortality and postoperative length of stay.

Methods: we conducted a retrospective, descriptive and analytical study in the Department of General Surgery at the Habib Bourguiba Hospital in Sfax, Tunisia from 1 January 2013 to 31 December 2020.

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Wells syndrome is a rare eosinophilic syndrome, associating inflammatory lesions, suggestive histological images and frequent eosinophilia. Wells syndrome is characterized by multiplicity of anatomoclinical forms. Clinically, lesions may be urticarial, annular, papulonodular, papulovesicular or bullous.

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Leishmaniasis is a zoonosis acquired from the bite of a sandfly that introduces the amastigote forms of leishmania into the bloodstream. It is a frequent infection in the countries of the Mediterranean basin and in Tunisia, where it is rife in an endemo-epidemic mode. However, it is rare after kidney transplantation.

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Syringocystadenoma Papilliferum (SCAP) is a benign adnexal tumor. Most of the cases present with a solitary lesion in the head and neck region at birth or in early childhood. In fact, only two cases of SCAP on the lower leg have been reported in the literature.

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Microbial polyhydroxyalkanoates (PHA) are biodegradable and biocompatible bio-based polyesters, which are used in various applications including packaging, medical and coating materials. In this study, an extremophilic hydrocarbonoclastic bacterium, previously isolated from saline sediment in the Tunisian desert, has been investigated for PHA production. The accumulation of intracellular PHA granules in G11 was detected by Nile blue A staining of the colonies.

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Background: Hydatid disease is endemic in Mediterranean countries and most commonly occurs in the liver followed by the lung. A primary localization in the retroperitoneum is extremely rare.

Case Presentation: We report the case of a 29-year-old Tunisian patient presenting with progressive left flank pain and skin urticaria.

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