Biochemical and toxicological characteristics of polyphenol oxidase from red palm weevil Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae).

Red palm weevil (RPW) Rhynchophorus ferrugineus is the most destructive insect pests of numerous palm species in the world. The introduction of botanical extract(s) as integral part of an integrated pest management (IPM) programs against RPW will reduce the use of chemical insecticides. Polyphenol oxidase (PPO) is one of the RPW innate immune mechanisms and inhibition of such enzyme could result in a disorder of the insect's immune system.

Effectiveness of a palliative care education program for caregivers of cancer patients receiving chemotherapy in Port Said City: A pre-post quasi-experimental study.

Background: Emphasizing the pivotal role of caregivers in the cancer care continuum, a program designed to educate caregivers of cancer patients undergoing chemotherapy underscores their significance. The palliative care education initiative strives to cultivate a compassionate and effective care environment, benefiting both patients and caregivers. By imparting education, fostering positive attitudes, offering support, encouraging appropriate behaviors, and providing essential resources, the program aims to enhance the overall caregiving experience and contribute to the well-being of those navigating the challenges of cancer treatment.

Palliative and Supportive Care for Patients with End-Stage Hepatocellular Carcinoma: Perspectives of Egyptian Domestic Caregivers.

Objectives: Palliative care is a holistic, patient-centered approach to improving the quality of life for those with terminal diseases and their families. The main objective of the current study was to evaluate the Egyptian domestic caregivers' knowledge, attitudes, and competencies related to palliative and supportive care.

Methods: Three hundred and thirty-five family caregivers in total were recruited.

Perception of pediatric oncology family care providers toward palliative care and its perceived barriers in Egypt.

Background: Palliative care is comprehensive supportive care addressing the suffering, pain, discomfort, symptoms, and stress of cancer and any serious life-threatening disease. It is a key part of care for our children living with cancer and is an important source of support for their families. The study aimed to assess the perception of pediatric oncology family care providers toward palliative care and its perceived barriers in Egypt.

Purification and characterization of acetylcholinesterase in Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae).

Red palm weevil (RPW), Rhynchophorus ferrugineus, is one of the most destructive pests of cultivated palm trees. The application of synthetic insecticides is currently a main strategy for RPW control. In this study we estimated the distribution of acetylcholinesterase (AChE), as a detoxifying enzyme and the target site of inhibition by insecticides, using ASChI as substrate in different organs of the pest including whole gut, cuticle, fat body, head and haemolymph.

Acetylcholinesterases from entomopathogenic nematode Heterorhabditid bacteriophora: Susceptibility to insecticides and immunological characteristics.

Acetylcholinesterases (AChEs) from the infective juveniles (IJs) of entomopathogenic nematode (EPN) have been investigated with respect to their susceptibility to insecticides and immunological characteristics, aiming at nominating the most compatible insecticide(s) to be used in conjunction with the most insecticide-tolerant EPN strain before incorporation in integrated pest management (IPM) programs. The inhibition kinetics of two purified AChE isoenzymes, AChEAII and AChEBI isolated from Heterorhabditid bacteriophora EM2 strain, by different insecticides revealed that the insensitivity to inhibition by such insecticides could be arranged in a descending order as; methomyl>carbofuran>acetamiprid>oxamyl>malathion. Except for malathion, the insecticides competitively inhibited AChEs with Ki values ranging from 0.

The activity of detoxifying enzymes in the infective juveniles of Heterorhabditis bacteriophora strains: Purification and characterization of two acetylcholinesterases.

The infectivity and detoxifying enzyme activities including glutathione-S-transferase (GST), acetylcholinesterase (AChE) and carboxylesterase (CaE) are investigated in the infective juveniles (IJs) of six different strains of Heterorhabditis bacteriophora as a biocontrol agent against insect pests. The specific activities ranged from 10.8-29.

Purification and characterization of an acetylcholinesterase from the infective juveniles of Heterorhabditis bacteriophora.

Acetylcholinesterases (AChEs) have been estimated in the infective juveniles (IJs) of eight different strains of heterorhabditid nematodes. The enzyme content ranged from 45.6 to 421.

Purification and characterization of alpha-amylase from the infective juveniles of the nematode Heterorhabditis bacteriophora.

Glycogen content and alpha-amylase activity were estimated in the infective juveniles (IJs) of Heterorhabditis bacteriophora at different times of storage. The glycogen content declined from 5.8 to 2.