Posts

Showing posts with the label Microbiology

Hereditary Haemochromatosis (HFE): Causes, Symptoms, Diagnosis & Treatment

By Sam
Hereditary Haemochromatosis (HFE): Causes, Symptoms, Diagnosis, and Treatment Complete article to Iron Overload Disorder | Symptoms, Genetics, Testing, and Management Hereditary Haemochromatosis (HFE) is one of the most common genetic disorders affecting iron metabolism in the human body. Despite its prevalence, it remains widely underdiagnosed due to its slow progression and non-specific early symptoms. This condition leads to excessive absorption and accumulation of iron in vital organs such as the liver, heart, pancreas, joints, and skin. Over time, this excess iron can cause serious and potentially life-threatening complications. In this comprehensive article, we will explore what Hereditary Haemochromatosis is, how it develops, its genetic basis, symptoms, diagnostic methods, treatment options, lifestyle modifications, and long-term outlook. This article is designed to be informative, easy to understand, and valuable for patients, caregivers, medical students, and hea...
Post a Comment
Read more

Nosocomial infection and Precaution

By Sam
Image
Nosocomial infections, also known as healthcare-associated infections (HAIs), are infections that are acquired during a hospital stay or healthcare facility visit. These infections can occur in patients, healthcare workers, or visitors and are typically not present or incubating at the time of admission. Nosocomial infections are a significant concern in healthcare settings due to their impact on patient outcomes, increased healthcare costs, and the potential for the spread of antibiotic-resistant bacteria. Common types of nosocomial infections include: 1. Urinary tract infections (UTIs): UTIs are the most common type of nosocomial infection. They often result from the use of urinary catheters, which can introduce bacteria into the urinary tract. 2. Surgical site infections (SSIs): SSIs occur after surgical procedures and can involve the incision site or deeper tissues. Factors such as improper surgical technique, contaminated instruments, or post-operative complications contribute to ...
Post a Comment
Read more

Hot Air Oven BMLT 3rd Year PPT

By Sam
A hot air oven is a device used for heating and sterilizing items using dry heat. It consists of an enclosed chamber that is heated to a specific temperature by an electric heating element or gas burner. The hot air circulates inside the oven, ensuring even distribution of heat and effectively sterilizing the items placed inside. Hot air ovens are commonly used in laboratories, medical facilities, and research institutions for sterilizing equipment, glassware, and other heat-resistant materials.
Post a Comment
Read more

Staphylococcus aureus

By Sam
Image
Staphylococcus aureus is a spherical gram-positive bacterium, a member of the Bacillota, and is a common member of the body's microbiota, often found in the upper respiratory tract and on the skin. It is often positive for catalase and nitrate reduction and is a facultative anaerobe that can grow without the need for oxygen. Although Staphylococcus aureus usually acts as a component of the human microbiota, it can also become an opportunistic pathogen, which is a common cause of skin infections including abscesses, respiratory infections such as sinusitis and food poisoning. Pathogenic species often drive infections by producing virulence factors such as potent protein toxins and expression of a cell surface protein that binds and inactivates antibodies. Staphylococcus aureus is one of the leading pathogens for antimicrobial resistance-related deaths, and the emergence of antibiotic-resistant strains such as methicillin-resistant Staphylococcus aureus (MRSA) is a global problem in ...
Post a Comment
Read more

Pseudomonas aeruginosa

By Sam
Image
  Pseudomonas is a type of bacteria (germ) commonly found in the environment, such as in soil and water. Of the many different species of Pseudomonas, the one that causes the most infection in humans is called Pseudomonas aeruginosa, which can cause infections of the blood, lungs (pneumonia) or other parts of the body after surgery. These bacteria are constantly looking for new ways to avoid the effects of antibiotics used to treat the infections they cause. Antibiotic resistance occurs when bacteria stop responding to antibiotics designed to kill them. If they develop resistance to various types of antibiotics, these germs can become multi-drug resistant. Who is at risk by Pseudomonas aeruginosa? Those most at risk are hospitalized patients, especially those: On breathing machines (ventilators) With devices such as catheters With wounds from surgery or burns How Pseudomonas aeruginosa is it spread? Pseudomonas aeruginosa lives in the environment and can spread to people in...
Post a Comment
Read more

Lyophilization By Erum Education Microbiology PPT

By Sam
Lyophilization and freeze drying are synonymous. Lyophilization is a water removal process typically used to preserve perishable materials, to extend shelf life or make the material more convenient for transport.
Post a Comment
Read more

Amoeba Biology By Erum Education

By Sam
Image
What is an amoeba? Amoebae are single-celled microbes that "crawl" and can sometimes eat your brain. Amoeba proteus with algae filled vacuoles for food production. (Image credit: Getty Images ) "Amoeba" is a term that describes a simple eukaryotic organism that moves in a characteristic crawling manner. However, a comparison of the genetic content of different amoebae shows that these organisms are not necessarily closely related. WHAT DOES AN AMOEBA LOOK LIKE? All living organisms can be broadly divided into two groups — prokaryotes and eukaryotes — characterized by the relative complexity of their cells. Eukaryotes are highly organized unicellular or multicellular organisms such as animals and plants. Prokaryotes, on the other hand, are basic single-celled organisms such as bacteria and archaea. Amoebae are eukaryotes. Their individual cells, like those of other eukaryotes, have certain distinguishing features: Their cell contents are enclosed in a cell membrane, ...
Post a Comment
Read more

Staphylococcus introduction morphology biochemical test and treatment

By Sam
Image
  Staphylococcus Staphylococcus are Gram Positive cocci it is arranged in grapes like cluster. they are the commonest causes of suppuration. They are medically important species of genus staphylococcus includes Staphylococcus aureus ( pathogenic infection of man) staphylococcus epidermids staphylococcus saprophyticus. ( skin commensal ) Under the microscope theu appears spherical ( cocci ) and form in grapes cluster. Morphology of staphylococcus They are Gram Positive cocci arranged in groups like cluster non motile and non sporing approximately 1 mm in diameter and it Nanna flagellated organism. Culture media staphylococcus They grow rapidly on ordinary culture media. The optimum temperature is grow 41°C and optimum PH 7.4-7.6 They aerobic and facultative anaerobes Nutrient Agar for staphylococcus After overnight of 24 hour incubation the colonies are to 2 to 4 mm in diameter circular smooth convex and easily emulsifiable. Blood Agar for staphylococcus Colonies are similar to thei...
Post a Comment
Read more

Identification of bacteria and biochemical tests with introduction and result

By Sam
Image
Identification of bacteria After isolation of bacteria in pure culture from a specimen it has to be identification. Bacteria are identified routinely by morphological and biochemical test supplemented as need by specialised test such as Syria type antibiotic. Morphology of bacteria Colony the following features of the calling our study Size  surface  shape  colour  haemolysis. Growth in liquid media Media bacteria growth may be a following forms Uniform terbidity Deposits of bottom Surface pelical formation  Stanning of Bacteria  Staining method are emploed to examine. Smell prepared from the bacteria Colony or liquid culture commonly used as follows. Gram stain Albert stain Zn staining Heinging drop preparation Differentiate motile bacteria from non motile onces  Bacteria test The widely used biochemical test are described below Sugar fermentation It determines the ability of an organism to permit a specific carbohydrate in corporated in a medium pro...
Post a Comment
Read more

Microbiology Questions

By Sam
Image
 Very short answer the questions 1. Enumerate the infection produced by staphylococcus. Ans :-  2. Name 4 gram Negative Bacilli. Ans :-  3. Name 2 coagulase positive staphylococcus. Ans :-  4. Name two selective media for corynebacterium diphtheria. Ans:-  5. Name four biochemical test for differece or Escherichiacoli and klebsiekkasp  Ans :- 6. Enumerate Neisseriasp  Ans :-  7. Name four anaerobic bacteria Ans :- 8. Enumerate the different types of candida sp Ans :-  9. Name biochemical test for identification of psedomonas aoruginosa. Ans :- 
Post a Comment
Read more