Self-Sustained Sequence Replication
I'm happy to help! In the context of molecular biology and genetics, "Self-Sustained Sequence Replication" (SSSR) refers to a process where a specific nucleic acid sequence can replicate itself without the need for external assistance or enzymes. This phenomenon is not typically observed in natural biological systems, as DNA and RNA replication in cells usually require various proteins and enzymes to facilitate the process.
Circadian Clocks
"Circadian clocks are biological mechanisms present in many organisms, including humans, that regulate the daily rhythm of various physiological processes in alignment with the 24-hour day-night cycle. These internal timekeeping systems consist of a complex network of genes and proteins that oscillate with a period of approximately one day. Circadian clocks help coordinate essential functions such as sleep-wake cycles, hormone release, metabolism, and body temperature regulation."
Dygnsrytm
Biologiska klockor
CLOCK Proteins
CLOCK proteins are a crucial component of the molecular circadian clock mechanism, a complex cellular system that regulates various physiological and behavioral processes in living organisms according to the time of day. The term "CLOCK" is an acronym for "Circadian Locomotor Output Cycles Kaput," which highlights its essential role in the generation and maintenance of circadian rhythms.
Oscillometri
Period Circadian Proteins
Period Circadian Proteins (PERIOD proteins) refer to a group of proteins that play a crucial role in the regulation of circadian rhythms, which are physical, mental, and behavioral changes that follow a daily cycle. In humans, circadian rhythms regulate sleep-wake cycles, feeding times, hormonal release, and other important bodily functions.
ARNTL Transcription Factors
ARNTL (Aryl Hydrocarbon Receptor Nuclear Translocator Like) transcription factors, also known as BMAL1 (Brain and Muscle ARNT-like 1), are crucial components of the circadian clock mechanism in mammals. They form heterodimers with CLOCK proteins and bind to E-box elements in the promoter regions of target genes to regulate their transcription. This rhythmic gene expression controls various physiological processes, including sleep-wake cycles, hormone release, and metabolism, which are synchronized to the 24-hour day-night cycle.
Suprachiasmatisk kärna
Periodicitet
I en medicinsk kontext, betecknar "periodicitet" oftast den regelbundna frekvensen eller intervallen vid vilka ett visst tillstånd, symptom, sjukdom eller laboratorieverifierbart fynd uppträder över tiden hos en individ. Till exempel kan man tala om "daglig periodicitet" av feber i samband med en infektion eller "veckovis periodicitet" av symtom hos en patient med en viss neurologisk sjukdom.
Modeller, biologiska
Elektrostimulering
Elektrostimulering (ES) är en medicinsk behandlingsmetod som innebär att man använder elektriska impulser för att stimulera muskler eller nerver. Genom att placera elektroder på huden nära den aktiva muskeln eller nerven skickas små elektriska signaler genom kroppen, vilket orsakar en kontraktion av muskeln eller en aktivering av nerven.