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Diversity of Protists I01:15

Diversity of Protists I

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Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...
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Diversity of Protists II01:27

Diversity of Protists II

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Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
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Viruses of Archaea01:29

Viruses of Archaea

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Archaeal viruses play a crucial role in the ecosystems of extremophilic archaea, particularly those belonging to the phyla Euryarchaeota and Crenarchaeota. By shaping host evolution and facilitating gene transfer, these viruses influence microbial communities and contribute to genetic diversity in extreme environments. The archaea they infect thrive in acidic hot springs and hydrothermal vents characterized by high temperatures and low pH. Archaeal viruses exhibit remarkable structural...
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Acute Pyelonephritis II: Diagnostic Studies and Management01:28

Acute Pyelonephritis II: Diagnostic Studies and Management

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Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
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Overview of Protists01:27

Overview of Protists

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Protists are diverse eukaryotic microorganisms that lack the specialized tissues of plants and animals and the chitinous cell walls of fungi. Their early divergence within Eukarya resulted in structural, functional, and ecological diversity. They are classified into supergroups such as Archaeplastida, Excavata, Amoebozoa, Rhizaria, Alveolata, and Stramenopiles, determined through genetic analysis and structural similarities.Structural and Functional AdaptationsProtists have various adaptations...
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Diversity of Protists IV01:27

Diversity of Protists IV

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Amoebozoa represent a diverse group of terrestrial and aquatic protists that utilize lobe-shaped pseudopodia for locomotion and feeding. This characteristic differentiates them from the Rhizaria, which possess threadlike pseudopodia. The primary classifications within Amoebozoa include gymnamoebas, entamoebas, and the plasmodial and cellular slime molds. Phylogenetic evidence indicates that Amoebozoa diverged from a lineage that ultimately gave rise to fungi and animals.Gymnamoebas and...
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Related Experiment Video

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HeLa Based Cell Free Expression Systems for Expression of Plasmodium Rhoptry Proteins
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Ureaplasma: current perspectives.

P Kokkayil, B Dhawan1

  • 1Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India.

Indian Journal of Medical Microbiology
|April 14, 2015
PubMed
Summary
This summary is machine-generated.

Ureaplasma, a common genital Mycoplasma, causes infections linked to infertility and adverse pregnancy outcomes. Prompt diagnosis and antibiotic treatment are crucial for managing Ureaplasma infections and preventing complications.

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Area of Science:

  • Microbiology
  • Infectious Diseases
  • Reproductive Health

Background:

  • Ureaplasma species are prevalent genital Mycoplasma in both sexes.
  • They are classified into two biovars: Ureaplasma parvum and Ureaplasma urealyticum.
  • Ureaplasma is associated with infertility, adverse pregnancy outcomes, and neonatal diseases.

Purpose of the Study:

  • To review recent developments in Ureaplasma research.
  • To highlight diagnostic methods and antimicrobial susceptibility.
  • To emphasize the clinical significance of Ureaplasma infections.

Main Methods:

  • Literature survey of PubMed using specific Ureaplasma search terms.
  • Review of diagnostic techniques including culture and PCR.
  • Analysis of antimicrobial susceptibility testing methods.

Main Results:

  • Ureaplasma possesses virulence factors like MBA, phospholipases, IgA protease, and urease.
  • Infections can lead to preterm labor, chronic lung disease, and retinopathy of prematurity.
  • Antimicrobial resistance to macrolides, tetracyclines, and fluoroquinolones is reported.

Conclusions:

  • Early diagnosis and appropriate antibiotic therapy are essential for Ureaplasma infections.
  • Susceptibility patterns vary between biovars, with biovar 2 showing higher sensitivity.
  • Ureaplasma may act as a co-factor in AIDS pathogenesis.