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Related Concept Videos

Skin Diseases and Disorders01:23

Skin Diseases and Disorders

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Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
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Bacterial Phylum Spirochaetes01:30

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Spirochetes, unique bacteria in the phylum Spirochaetes, are gram-negative, motile, tightly coiled, slender, and flexible. They inhabit aquatic sediments and animals, with some causing diseases like syphilis. Spirochetes are classified into eight genera based on habitat, pathogenicity, phylogeny, and characteristics.Their distinctive motility arises from endoflagella, located within the cell’s periplasm. These endoflagella anchor at the cell poles and extend along the cell length, encased...
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Bacterial Phylum Actinobacteria01:30

Bacterial Phylum Actinobacteria

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Coryneform bacteria are gram-positive, aerobic, nonmotile rods that exhibit irregular, club-shaped, or V-shaped arrangements. Their V-shape results from snapping division, where the inner cell wall layer forms the cross-wall, while the outer layer remains intact until it ruptures on one side, causing the daughter cells to bend away.The primary genera are Corynebacterium and Arthrobacter. Corynebacterium includes diverse species, ranging from saprophytes to pathogens like Corynebacterium...
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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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Acute Pyelonephritis I: Introduction01:27

Acute Pyelonephritis I: Introduction

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Pyelonephritis is a bacterial infection that primarily affects the renal parenchyma and collecting system, including the renal pelvis, tubules, and interstitial tissue of one or both kidneys. It can be classified as either acute—a sudden, severe infection—or chronic, which refers to long-term or recurrent kidney infections.The primary cause of acute pyelonephritis (APN) is bacterial infection, with Escherichia coli accounting for approximately 70-80% of cases. Other bacteria, such...
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Urinary Tract Infection II: Pathophysiology01:25

Urinary Tract Infection II: Pathophysiology

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The pathophysiology of urinary tract infections (UTIs) encompasses several progressive stages, beginning with bacterial colonization and culminating in potential systemic complications if untreated. UTIs are primarily initiated by bacteria, such as Escherichia coli, which often originate from the gastrointestinal tract and migrate to the urinary system through the periurethral area. This migration can occur via several routes, including improper hygiene practices, sexual activity, or...
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Related Experiment Video

Updated: Mar 7, 2026

Visualization of Streptococcus pneumoniae within Cardiac Microlesions and Subsequent Cardiac Remodeling
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Streptococci in Pyoderma.

K C Verma, D T Chug, K K Bhatia

    Indian Journal of Dermatology, Venereology and Leprology
    |February 18, 2017
    PubMed
    Summary
    This summary is machine-generated.

    Beta-hemolytic group A streptococci were the primary cause of pyoderma in this study. Most isolates were sensitive to bacitracin and penicillin, indicating effective treatment options for streptococcal skin diseases.

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    Area of Science:

    • Dermatology
    • Microbiology
    • Nephrology

    Background:

    • Pyoderma is a common bacterial skin infection.
    • Streptococcal infections can lead to urinary changes.
    • Understanding causative agents and antibiotic susceptibility is crucial for effective treatment.

    Purpose of the Study:

    • To identify microorganisms responsible for pyoderma.
    • To determine the antibiotic susceptibility of isolated strains.
    • To investigate urinary changes associated with streptococcal skin diseases.

    Main Methods:

    • A study of 350 pyoderma cases.
    • Isolation and identification of microorganisms.
    • Serotyping of Beta-hemolytic group A streptococci.
    • Urine analysis for albuminuria, hematuria, and pyuria.

    Main Results:

    • Beta-hemolytic group A streptococci were isolated from 59.14% of cases.
    • All strains were susceptible to bacitracin (100%).
    • Common T patterns identified were T4/13/B 3264 (28.88%) and T5/11/12/27/44 (22.22%).
    • Urinary changes included albuminuria (5.42%), hematuria (2 cases), and pyuria (5 cases).
    • No resistance to penicillin was observed; 2-25% resistance to other antibiotics was found.

    Conclusions:

    • Beta-hemolytic group A streptococci are a major cause of pyoderma.
    • Antibiotic susceptibility testing is vital for guiding pyoderma treatment.
    • Urinary abnormalities can occur secondary to streptococcal skin infections.