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Related Concept Videos

Review and Preview01:10

Review and Preview

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In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...
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Review and Preview01:13

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Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative continuous, or quantitative discrete. Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. Random...
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Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
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Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
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Directional terms are essential for describing the relative locations of different body structures. For instance, an anatomist might describe one band of tissue as "inferior to" another, or a physician might describe a tumor as "superficial to" a deeper body structure. These terms often use comparative terms in pairs to trace out the relative locations of one body part to another or descriptions of body tissues like the deeper ones from superficially present with reference to...
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Long-term Potentiation01:25

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Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
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Related Experiment Video

Updated: Jan 27, 2026

Phage-Mediated Genetic Manipulation of the Lyme Disease Spirochete Borrelia burgdorferi
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Long-Term Cardiac Sequelae in Lyme Carditis: A Review.

Mohamed Badheeb1, Ashraf Ahmed1, Anton Stolear2

  • 1Internal Medicine, Yale New-Haven Health - Bridgeport Hospital, Bridgeport, CT, USA.

Current Cardiology Reviews
|January 26, 2026
PubMed
Summary

Lyme carditis, a complication of Lyme disease, can cause persistent heart problems like atrioventricular block and myocarditis, even after treatment. Further research is needed on long-term cardiac risks and management.

Keywords:
Lyme carditisLyme diseasecardiac manifestationsconduction abnormalities.long-term complications

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Detecting the Lyme Disease Spirochete, Borrelia Burgdorferi, in Ticks Using Nested PCR
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Feeding of Ticks on Animals for Transmission and Xenodiagnosis in Lyme Disease Research
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Feeding of Ticks on Animals for Transmission and Xenodiagnosis in Lyme Disease Research

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Area of Science:

  • Cardiology
  • Infectious Diseases
  • Immunology

Background:

  • Lyme disease, caused by Borrelia burgdorferi, is a tick-borne illness prevalent in North America.
  • Disseminated Lyme spirochetes can lead to multisystem complications, notably Lyme carditis, affecting the heart.

Purpose of the Study:

  • To review the cardiovascular complications of Lyme carditis.
  • To assess the prevalence, reversibility, and chronicity of cardiac involvement.
  • To explore diagnostic and prognostic implications of Lyme carditis.

Main Methods:

  • Review of observational studies, retrospective analyses, systematic reviews, and case reports.
  • Inclusion of patients with confirmed or presumed Lyme carditis.
  • Analysis of key outcomes including cardiac prevalence, reversibility, chronicity, and diagnostic/prognostic factors.

Main Results:

  • Atrioventricular block is the most common abnormality (up to 90%), sometimes requiring pacing.
  • Most conduction issues resolve with antibiotics, but some patients have persistent dysfunction.
  • Structural issues like myocarditis, pericarditis, and rare endocarditis/cardiomyopathy occur; chronic inflammation and autoimmunity may cause long-term remodeling.
  • Rare coronary artery involvement and aneurysms suggest chronic cardiovascular risk.

Conclusions:

  • Lyme carditis can lead to persistent cardiovascular complications despite treatment.
  • Permanent conduction abnormalities, myocarditis, and ventricular dysfunction are reported; chronic heart failure and coronary artery issues require more study.
  • While often self-limited, Lyme carditis may have lasting cardiac effects, necessitating further research into risk factors, mechanisms, and long-term management.