Programmed cell death (PCD) is a basic biological phenomenon that plays an important role during development, preservation of tissue homeostasis, and elimination of damaged cells. Several nomenclature systems have been proposed to classify PCD. One widely accepted system describes three major morphologies of programmed cell death, and classifies PCD as type I, apoptosis; type II, autophagy; and...

Infertility is a very disastrous side effect in young females, especially in traditional male-dominated societies. The aim of this talk is to discuss the possible ways for fertility preservation in both man and woman. Another aspect is to how to predict women at threat of premature ovarian failure. It will also illustrate the association of cytochrome P450 (CYP2C19) polymorphism with ovarian to...

The key to achieving pleasing esthetics in implant dentistry is a thorough understanding of the biological processes driving dimensional bone and soft tissue alterations post-extraction. The aim of the present report is first to characterize the extent of bone and soft tissue changes post-extraction and second to identify potential factors influencing tissue preservation in order to facilitate ...

abstract food preservatives are often added to food as preservation method. mostly one preservative alone cannot preserve a product effectively. so it is required to create a preservation system to overcome limitations derived from each preservative. using proper selection of different preservatives may lead to significant practical benefits. in this investigation, resistant strain of bacillus ...

UNLABELLED BACKGROUND Biological monitoring is used to assess toluene exposure in medical examinations. The American Conference of Industrial Hygienists, Japanese Society for Occupational Health and Deutsche Forschungsgemeinschaft have proposed various biological exposure determinants, such as toluene in blood and urine, and o-cresol in urine. Toluene in blood is a common biomarker among the...

Since Shackell (1909) described the preservation of biological material by freeze-drying, or drying by sublimation of ice, other workers have improved the process until, at the present time, it is used to preserve a variety of biological products. Flosdorf (1949) has reviewed the course of this development. A few of the workers in the field have published the results of attempts to use this tec...

Recent advances in the field of biotechnology have led to products containing enzymes, antibodies, and many other biological agents suitable for use as pharmaceuticals, veterinarian preparations, and foods. Often, economic and ease-of-use considerations dictate that proteins be stabilized in a dry format. Well over a decade ago it became clear that carbohydrate glasses play a central role in an...

Abstract In this introductory chapter we will introduce two essential concepts: differential equations and numerical methods. If you want to spend as little energy possible (don’t be ashamed of that - preservation is both fashionable a fundamental property many biological mechanisms it’s fine) can get good overview from alone.

Antifreeze proteins (AFPs) are biological antifreezes with unique properties, including thermal hysteresis(TH),ice recrystallization inhibition(IRI),and interaction with membranes and/or membrane proteins. These properties have been utilized in the preservation of biological samples at low temperatures. Here, we review the structure and function of marine-derived AFPs, including moderately acti...

Biological evidence with forensic interest may be found in several cases of assault, being particularly relevant if sexually related. Sexual assault cases are characterized by low rates of disclosure, reporting, prosecution, and conviction. Biological evidence is sometimes the only way to prove the occurrence of sexual contact and to identify the perpetrator. The major focus of this review is t...