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4,374 results
  • Dysbiosis in gastrointestinal pathophysiology: Role of the gut microbiome in Gulf War Illness. [Review]
    J Cell Mol Med. 2023 Jan 30 [Online ahead of print]Slevin E, Koyama S, … Meng F
  • Gulf War Illness (GWI) has been reported in 25%-35% of veterans returned from the Gulf war. Symptoms of GWI are varied and include both neurological and gastrointestinal symptoms as well as chronic fatigue. Development of GWI has been associated with chemical exposure particularly with exposure to pyridostigmine bromide (PB) and permethrin. Recent studies have found that the pathology of GWI is c…
  • Pyrethroids exposure alters the community and function of the internal microbiota in Aedes albopictus. [Journal Article]
    Ecotoxicol Environ Saf. 2023 Jan 26; 252:114579.Wei X, Peng H, … Zhao X
  • Large amounts of insecticides bring selection pressure and then develop insecticide resistance in Aedes albopictus. This study demonstrated for the first time the effect of pyrethroid exposure on the internal microbiota in Ae. albopictus. 36, 48, 57 strains of virgin adult Ae. albopictus were exposed to the pyrethroids deltamethrin (Dme group), β-cypermethrin (Bcy group), and cis-permethrin (Cper…
  • Oral ivermectin to treat scabies: a comparison of two different regimens. [Journal Article]
    Clin Exp Dermatol. 2022 Dec 10 [Online ahead of print]Balestri R, Magnano M, … Rech G
  • As Sarcoptes scabiei is becoming less sensitive to permethrin, clinicians have started to prescribe oral ivermectin (OI) as a first-line treatment. Guidelines suggest OI 200 µg kg-1 as two doses, 1 week apart. However, the black box of the ivermectin registered in Italy recommends a single dose. To compare these two regimens, we collected 71 cases of scabies and treated them according to this pro…
  • Rodent-targeted approaches to reduce acarological risk of human exposure to pathogen-infected Ixodes ticks. [Review]
    Ticks Tick Borne Dis. 2023 Jan 14; 14(2):102119.Eisen L
  • In the United States, rodents serve as important hosts of medically important Ixodes ticks, including Ixodes scapularis and Ixodes pacificus, as well as reservoirs for human pathogens, including Anaplasma phagocytophilum, Borrelia burgdorferi sensu stricto (s.s.), and Babesia microti. Over the last four decades, different methods to disrupt enzootic transmission of these pathogens between tick ve…
  • Predictors of pesticide levels in carpet dust collected from child care centers in Northern California, USA. [Journal Article]
    J Expo Sci Environ Epidemiol. 2023 Jan 04 [Online ahead of print]Hazard K, Alkon A, … Bradman A
  • CONCLUSIONS: Our findings contribute to the growing understanding that pesticides are ubiquitous in children's environments. Pesticide levels in carpet dust were associated with some factors that ECE directors may have control over, such as IPM practices, and others that are beyond their control, such as geographic location. IPM is an important tool that has the potential to reduce pesticide exposures in ECE environments, even for pesticides no longer in use.One million children in California under six years old attend child care programs where they may spend up to 40 h per week. Children are uniquely vulnerable to environmental contaminants; however early care settings are under researched in environmental health studies. Little is known about predictors of pesticide levels found in environmental samples from child care facilities. This study aims to identify behavioral and environmental determinants of pesticide contamination in California child care centers. Findings can empower child care providers and consumers and inform decision makers to reduce children's exposures to pesticides and promote lifelong health.
  • Behavioral interactions of bed bugs with long-lasting pyrethroid-treated bed nets: challenges for vector control. [Journal Article]
    Parasit Vectors. 2022 Dec 26; 15(1):488.Hayes CC, Schal C
  • CONCLUSIONS: Commonly used new LLINs failed to prevent the passage of susceptible and pyrethroid-resistant bed bugs in host- and aggregation-seeking bioassays. The overall low and variable mortality observed in susceptible bed bugs during both assays highlighted the potential of LLINs to impose strong selection pressure for the evolution of pyrethroid resistance. Already, the failure to control bed bug infestations has been implicated as a contributing factor to the abandonment or misuse of LLINs. For the first time to our knowledge, we have shown the potential of LLINs in selecting for resistant secondary pest populations and so their potential role in stalling malaria control programs should be further investigated. The emergence of pyrethroid-resistant bed bugs in malaria-endemic communities may interfere with the effective use of pyrethroid-impregnated bed nets. We assessed the interactions of two bed bug strains with commonly used bed nets using two behavioral assays, namely host (blood meal)-seeking by unfed bed bugs and aggregation-seeking by freshly fed bed bugs. These assays assessed the passage of bed bugs through various bed nets in response to host cues and aggregation stimuli, respectively. Conditioned paper is a section of file folder paper that has been exposed to bed bugs and has been impregnated with feces and aggregation pheromone; it is attractive to aggregation-seeking fed bed bugs. An unconditioned ramp is a similar section of file folder paper that allows bed bugs to traverse the bed net and gain access to a blood-meal source.
  • Essential Oils against Sarcoptes scabiei. [Review]
    Molecules. 2022 Dec 19; 27(24)Nardoni S, Mancianti F
  • Herbal remedia are widely employed in folk medicine, and have been more and more often studied and considered in the treatment of several infections. Sarcoptic mange (scabies, when referring to human patients) is a highly contagious skin disease caused by Sarcoptes scabiei (sarcoptiformes, Sarcoptinae), an astigmatid mite which burrows into the epidermis, actively penetrating the stratum corneum.…
  • Insecticide Resistance Profile and Mechanisms in An. gambiae s.l. from Ebolowa, South Cameroon. [Journal Article]
    Insects. 2022 Dec 08; 13(12)Efa S, Elanga-Ndille E, … Ndo C
  • CONCLUSIONS: The increased resistance of An. gambiae s.l. to pyrethroid insecticides as observed in Ebolowa poses a threat to the efficacy of LLINs used to protect populations from the bites of Anopheles mosquitoes that transmit malaria parasites. The present study further highlights the urgent need to implement resistance management strategies in order to maintain the effectiveness of insecticide-based vector control interventions and prevent a rebound in malaria-related mortality.
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