Publications by authors named "Marrelli M"

The rising prevalence of obesity has led to an increase in bariatric procedures, with laparoscopic Roux-en-Y gastric bypass (LRYGB) being one of the most commonly performed surgeries due to its efficacy and safety. However, internal hernia (IH) remains a significant complication post-LRYGB. The debate over preventive closure of mesenteric defects (MD) during LRYGB continues, with no consensus on the optimal technique.

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has wild habits with ecological plasticity in anthropized environments. We report the occurrence of this species in several types of artificial containers in 2 fragments of the Atlantic Forest in the city of São Paulo, Brazil. A total of 1,428 larvae were collected, in which plastic containers had the highest abundance of immature forms of Li.

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L. genus (Asteraceae) comprises perennial herbs native to the temperate and boreal parts of the northern hemisphere. is the main species.

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The Capivari-Monos Environmental Protection Area (EPA) is located in the southern part of the São Paulo city Green Belt. Since the 1950s, this region has been affected by uncontrolled urban sprawl, resulting in a change in the ecological habits of some vector mosquitoes. Over the last two decades, cases of autochthonous bromeliad malaria associated with the presence of anopheline mosquitoes in the EPA have been recorded.

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Microculex is a subgenus of Culex that is mainly associated with natural breeding sites in wild environments such as cut bamboos, tree holes and bromeliads. However, recent findings of Culex (Microculex) species in bromeliads in urban areas and in artificial breeding sites close to human habitations suggest that they are becoming more tolerant of urbanization. Whilst dispersion studies of this subgenus have shown the ecological valency of some species in relation to human-impacted areas, there is a scarcity of studies on the blood-feeding habits, vector capacity and taxonomy of Microculex.

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Obesity is a risk factor for the onset of chronic diseases. One of the most promising approaches to treating obesity consists of reducing dietary fat absorption using extracts from plants because they contain phenolic compounds, especially flavonoids. , belonging to the Rhamnaceae family, is one of the five species belonging to the genus.

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Antimicrobial resistance is an increasingly widespread phenomenon that is of particular concern because of the possible consequences in the years to come. The dynamics leading to the resistance of microbial strains are diverse, but certainly include the incorrect use of veterinary drugs both in terms of dosage and timing of administration. Moreover, the drug is often administered in the absence of a diagnosis.

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is currently considered the parasite that causes the greatest damage and economic losses to honeybee farms. Its presence is often associated with that of viral and bacterial pathogens, which ultimately leads to colony collapse. Careful control of the parasitic load is therefore necessary to avoid the onset of these events.

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Jan ex Guss. (Apiaceae) is a perennial plant native to Italy and Northwestern Africa. This species is known for its content in furanocoumarins, and the methanolic extract obtained with maceration previously demonstrated significant phototoxicity on 375 melanoma cells.

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The most significant ectoparasitic mite of honeybees, , has a detrimental effect on bee health and honey output. The principal strategy used by the control programs is the application of synthetic acaricides. All of this has resulted in drug resistance, which is now a major worry for beekeeping.

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The most important pollinator for agricultural crops is the Western honeybee (). During the winter and summer seasons, diseases and stresses of various kinds endanger honeybee numbers and production, resulting in expenses for beekeepers and detrimental effects on agriculture and ecosystems. Researchers are continually in search of therapies for honeybees using the resources of microbiology, molecular biology, and chemistry to combat diseases and improve the overall health of these important pollinating insects.

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Spenn. is a native Mediterranean shrub belonging to the Lamiaceae family and is well-known as a flavoring and spicing agent. In addition to its classical use, it has drawn attention because its biological activities, due particularly to the presence of polyphenols, including carnosic acid and rosmarinic acid, and phenolic diterpenes as carnosol.

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Article Synopsis
  • Genetic diversity and population structure of a sylvatic vector for yellow fever virus in São Paulo vary based on agricultural land use and isolation of Atlantic Forest fragments.
  • High genetic diversity is found in areas with intense agricultural activity, while populations show signs of recent expansion, indicated by negative values in neutrality tests.
  • A strong correlation exists between population structuring and the spatial distance of sampled forest fragments, with coastal populations being more closely related than those in the northwest.
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The intense process of deforestation in tropical forests poses serious challenges for the survival of biodiversity, as well as for the human species itself. This scenario is supported by the increase in the incidence of epidemics of zoonotic origin observed over the last few decades. In the specific case of sylvatic yellow fever (YF), it has already been shown that an increase in the transmission risk of the causative agent (yellow fever virus - YFV) is associated with areas with a high degree of forest fragmentation, which can facilitate the spread of the virus.

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Culex quinquefasciatus is a cosmopolitan species distributed throughout tropical and subtropical areas of the world. The species is of great epidemiological importance as it is responsible for vectoring the causative agent of lymphatic filariasis and several arboviruses, including West Nile virus. Wing geometric morphometrics has been widely used to assess phenotypic variations in mosquito species.

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Stilbenoids, a group of phytoalexin polyphenols produced by plants as a defence mechanism in response to stress conditions, are known for their anti-inflammatory potential. Pinosylvin, a naturally occurring molecule traditionally found in pinus trees, was here identified in subsp. var.

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Article Synopsis
  • * While these drugs are effective, their long-term use causes issues like resistance in parasites and potential toxicity to bees and beehive products.
  • * In light of these problems, plant-derived essential oils (EOs) have gained attention for their acaricidal properties, though differences in research results highlight the need for standardized studies and further investigation.
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Background: Breast cancer is the second leading cause of death among women after lung cancer. Despite the improvement in prevention and in therapy, breast cancer still remains a threat, both for pre- and postmenopausal women, due to the development of drug resistance. To counteract that, novel agents regulating gene expression have been studied in both hematologic and solid tumors.

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The L. genus belongs to the Apiaceae family and it is widely distributed in the Mediterranean basin, with plant species being endemic to southern Europe, Asia, and northern Africa. Different studies, focused on the phytochemical composition of spp.

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L. is a plant belonging to the Oleaceae family, widely grown around the Mediterranean Basin and its leaves are a source of phenolic compounds with antioxidant and anti-inflammatory capacity. Among these, oleuropein and luteolin-7-O-glucoside represent two major polyphenolic compounds in olive-leaf extract.

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Ornamental plants often gain relevance not only for their decorative use, but also as a source of phytochemicals with interesting healing properties. Herein, spontaneous (L.) DC.

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Article Synopsis
  • Varroatosis is a serious disease in honeybees caused by the Varroa destructor mite, which can lead to colony collapse and has shown increasing resistance to current treatments.
  • The study explored the acaricide effects of essential oils (specifically from fennel) against Varroa mites, evaluating their effectiveness through two methods: prolonged exposure to oil vapors and a semi-field experiment.
  • Results indicated that higher concentrations and longer exposure times increased mite mortality significantly, with the whole fennel plant achieving up to 68% mortality at the highest concentration, although a much higher concentration was needed in field conditions to achieve similar results.
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Different phytochemical compounds have been demonstrated to modulate the JAK/STAT signaling pathway. Here, three species from Southern Italy were investigated for both the phytochemical profile and the potential anti-inflammatory properties. The aerial parts were extracted with methanol through Naviglio Extractor, an innovative solid-liquid extraction technique that allows to obtain high quality extracts by working with gradient pressure.

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