Related Experiment Video
Updated: Jan 22, 2026

10:11
Facial Nerve Axotomy in Mice: A Model to Study Motoneuron Response to Injury
Published on: February 23, 2015
13.7K
METABOLIC, ENZYMATIC AND MINERAL MAINTENANCE OFREPARATIVE OSTEOGENESIS OF FACIAL CRANIUM INJURIES
1Kharkiv National Medical University of the Ministry of Health of Ukraine.
Georgian Medical News
|July 20, 2019
Summary
Complicated facial bone injuries disrupt reparative osteogenesis, indicated by altered enzyme and metabolite levels. These biochemical changes correlate with impaired bone healing and density.
Area of Science:
- Biochemistry
- Orthopedics
- Traumatology
Background:
- Facial cranium injuries can have complicated courses, impacting bone healing.
- Assessing reparative osteogenesis requires evaluating biochemical markers and bone metabolism.
Purpose of the Study:
- To investigate marker enzymes, hormonal, and carbohydrate-protein indicators of reparative osteogenesis in complicated versus uncomplicated facial cranium injuries.
- To correlate biochemical findings with bone tissue structural and functional states.
Main Methods:
- Studied 81 patients with facial cranium injuries, divided into complicated and uncomplicated groups.
- Analyzed urinary hydroxyproline excretion, alkaline and acid phosphatase activity, serum calcium, phosphorus, and glycosaminoglycans.
- Utilized densitometry to assess bone tissue structure and function.
Main Results:
- Complicated injuries showed increased phosphorus, uronic acids, and oxyproline excretion, with decreased magnesium excretion.
- Serum calcium levels were significantly lower in complicated cases, suggesting reduced metabolic activity in osteogenesis.
- Elevated chondroitin-6-sulfates and altered glycosaminoglycan fractions indicated osteogenesis instability.
- Densitometry revealed increased ultrasonic attenuation and decreased speed, linked to low chondroitin-6-sulfates.
Conclusions:
- Biochemical markers and densitometry can identify impaired reparative osteogenesis in complicated facial cranium injuries.
- Altered mineral and carbohydrate-protein metabolism are key indicators of disrupted bone healing.
- Damage to central mechanisms may underlie the reduced metabolic activity observed in complicated cases.
Related Concept Videos
Water and Mineral Acquisition
35.4K
Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.
35.4K
Minerals
1.1K
Minerals are essential nutrients that the human body needs in small amounts to work properly. They play a vital role in many bodily functions, such as building strong bones and transmitting nerve impulses. Some minerals are needed for hormone production or to maintain a normal heartbeat. Major minerals include calcium, phosphorus, potassium, sulfur, sodium, chlorine, and magnesium, while trace minerals include iron, manganese, copper, iodine, zinc, cobalt, fluoride, and selenium.
Major...
Major...
1.1K
What is Metabolism?
131.2K
Overview
131.2K
Facial Feedback Hypothesis
616
Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role...
616
Muscles for Facial Expressions
4.8K
The craniofacial muscles are a collection of approximately 20 thin skeletal muscles situated beneath the skin of the face and scalp. These muscles, primarily responsible for the vast array of human facial expressions, originate from the bones or fibrous structures of the skull and extend outwards to connect with the skin. While most skeletal muscles in the body are enveloped in thick fascia, facial muscles generally have a more delicate fascial covering, with the buccinator muscle being a...
4.8K
Maintenance of the ES Cell State
2.7K
The cells of the blastocyst inner cell mass only remain pluripotent for a short time. This state of pluripotency and self-renewal can be maintained in embryonic stem (ES) cell culture by adding specific chemicals or growth factors to ensure the cells can continue dividing and later differentiate into different cell types. In some cases, the cells are grown on a feeder layer of differentiated cells, which provides the growth factors and extracellular matrix components necessary for stem cell...
2.7K

