The cephalic salivary glands of some species of bees are exclusive and well developed only in Apinae. These glands were studied with light and scanning electron microscopy in workers, queens and males from the honey bee Apis mellifera, and the stingless bee Scaptotrigona postica in different life phases. The results show that the cephalic salivary glands are present in females of both the species, and in males of S. postica. Nevertheless, they are poorly developed in young males of A. mellifera. In both species, gland growth is progressive from the time of emergence to the oldest age but, in A. mellifera males, the gland degenerates with age. Scanning electron microscopy shows that the secretory units of newly emerged workers are collapsed while in older workers they are turgid. Some pits on the surface of the secretory units correspond to open intercellular spaces. The possible functions of these glands in females and males of both species are discussed.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s12038-010-0029-z | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Thyroid scintigraphy of healthy cats using small-field-of-view gamma cameras.
Front Vet Sci
October 2024
Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea.
Introduction: Small-field-of-view (SFOV) gamma cameras can offer higher sensitivities than conventional gamma cameras. However, there are currently no reports on the efficacy and safety of thyroid scintigraphy using SFOV gamma cameras in veterinary medicine. Therefore, we aimed to evaluate the efficacy and radiation safety of an SFOV gamma camera for feline thyroid scintigraphy.
View Article and Find Full Text PDFPrevalence of Malocclusions among Schoolchildren from Southwestern Romania.
Diagnostics (Basel)
March 2024
Department of Orthodontics, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania.
Article Synopsis
- Malocclusions are becoming more common across generations, influenced by climate change and pollution, which impact nutrition and overall development, particularly of the head and face.
- The study involved 4,147 children from Vâlcea County, Romania, exploring the prevalence of malocclusions based on Angle's classification, age, gender, and urban versus rural backgrounds.
- Results showed that Angle class I malocclusions were most prevalent (48.78%), followed by class II (45.85%) and class III (5.37%), with higher occurrences in females and urban areas.
Consumption of Citric Acid by Bees Promotes the Gland Development and Enhances Royal Jelly Quality.
Life (Basel)
March 2024
State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China.
The glands of bees are responsible for generating and secreting various biologically active substances that significantly impact bee physiological health and adaptability. This study aimed to investigate the effects of adding citric acid (CA) to bee feed on gland development and royal jelly quality. By formulating feed with varying proportions of CA, evaluation was undertaken of pollen feeding by honeybees under laboratory conditions, along with the impact of CA on the development of major glands, to determine suitable addition proportions.
View Article and Find Full Text PDFOral stimulation with maltodextrin: Effect on cephalic phase insulin release.
Appetite
April 2023
Department of Food Science and Technology, Oregon State University, Corvallis, OR, 97331, USA. Electronic address:
Cephalic phase insulin release (CPIR) occurs following sensory stimulation with food-related stimuli, and has been shown to limit postabsorptive hyperglycemia. While the specific stimuli that elicit CPIR in humans have not been clearly defined, previous research points to sugars as having potential importance. Maltodextrins are a starch-derived food ingredient commonly found in a variety of processed food products.
View Article and Find Full Text PDFCephalic phase insulin release: A review of its mechanistic basis and variability in humans.
Physiol Behav
October 2021
Department of Food Science & Technology, Oregon State University, Corvallis, OR 97331, USA. Electronic address:
Cephalic phase insulin release (CPIR) is a transient pulse of insulin that occurs within minutes of stimulation from foods or food-related stimuli. Despite decades of research on CPIR in humans, the body of literature surrounding this phenomenon is controversial due in part to contradictory findings . This has slowed progress towards understanding the sensory and neural basis of CPIR, as well as its overall relevance to health.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!