Immunoenzymatic colorimetric method for quantitative determination of thyroxine (T4) concentration in human serum and plasma.
T4 ELISA kit is intended for laboratory use only.
PAPILLOMAVIRUS TYPE 18 (HeLa cells) DNA Ctrl
PAPILLOMAVIRUS TYPE 18 (HeLa cells) DNA Ctrl
Papillomaviruses are non-enveloped, icosahedral, double
stranded DNA viruses with a diameter of 45 to 55 nm. They
infect epithelial tissues throughout the body leading to both
benign and malignant lesions, including common and genital
warts. Papillomas caused by some types, such as human
papillomaviruses 16 and 18, are strongly associated with
cervical cancer. The control contains DNA from HeLa cells that
are reported to bear human papillomavirus type 18 sequences.
HepAK 7plus Dot is used for the qualitative determination of IgG
autoantibodies to M2, gp210, sp100, LKM1, LC1, SLA and F-actin
in human serum or plasma for the differential diagnosis of
autoimmune liver diseases.
Toxoplasma gondii is a protozoan that presents three stages in
its developmental life cycle: oocyst, tachyzoite and bradyzoite.
While only members of the family Felidae can be definitive
hosts of the parasite, a great variety of animals can harbour
the tissue cysts. Although consuming contaminated food is the
most common way of becoming infected, transplacental
infection may occur. The disease is normally benign, but
central nervous system disease may appear in
immunocompromised patients and the newborn.
Bacteria in the genus Enteroccoccus are non-spore forming,
facultatively anaerobic, Gram-positive cocci that often occur in
pairs or short chains. E. faecalis are non-motile enterococci
that can be commonly found as commensal organisms in the
intestines of humans. They are able to survive in low-enriched
environments such as water, soil or food. Enterococci have
both an intrinsic and acquired resistance to antibiotics, making
them important nosocomial pathogens, with the ability to
cause life-threatening infections in humans. Infections
commonly caused by enterococci include urinary tract
infections, endocarditis, bacteremia, catheter-related
infections, wound infections, and intra-abdominal and pelvic
infections. Many infecting strains originate from the patient's
CytoBead® CeliAK is a reagent set for the qualitative and semiquantitative
determination of endomysial antibodies (EmA) of the
IgA and IgG classes, using sections of monkey esophagus, as well
as the determination of IgA/IgG antibodies against tissue
transglutaminase (tTG; Transglutaminase 2), deamidated gliadin
(DG) and a control of IgA antibodies in human serum.
Rubella is an exanthematous viral disease of children and young adults. It
is a self-limited and benign disease characterized by fever, mild upper
respiratory symptoms, erythematous rash and suboccipital
lymphodenopathy. Rubella can be a very serious disease early in
pregnancy leading miscarriages or birth defects up to 85% of cases.
Reinfection occurs more frecuently in vaccinated that in naturally immune
individuals. The majority of these reinfections occur without symptoms.
Rubella reinfections during pregnancy rarely results in transmission of the
virus to the unborn child. Antibodies appear at the begining of the disease
and initially both IgG and IgM can be detected. IgG antibodies usually
persist throughout life. IgM antibodies do not persist beyond 8 weeks. The
RUBELLA ELISA IgG has been standardised against the WHO first
international standard for anti-rubella immunoglobulin with a cut off
control set at 10 U.I./ml
Yellow fever virus belongs to the family Flaviviridae which
includes enveloped, icosahedral, single stranded RNA (+)
viruses with a diameter of approximately 50 nm. The infection
can occur in one or two phases. The acute phase usually causes
fever, muscle pain with prominent backache, headache,
shivers, loss of appetite, and nausea or vomiting. Most patients
recover after 3 to 4 days, but 15% of them enter a second,
more toxic phase with high fever, jaundice, abdominal pain
with vomiting and bleeding. The mosquito is the primary
vector and carries the virus from one host to another, primarily
between monkeys, from monkeys to humans, and from person
Cryptococcus neoformans is a round to somewhat oval yeastlike
fungus with single budding, belonging to the Phylum
Basidiomycota, that ranges greatly in size (3.5-8 μm). The yeast
is commonly associated to pigeon droppings, and, after
inhalation, may spread to the brain and meninges, specially in
patients with altered humoral and cellular immunity.
Invasive candidiasis is a disease of fungal ethiology with an increasing
incidence, specially in immunosuppressed patients (graft receivers,
neutropenic and AIDS patients, etc), long-stay hospitalized and
catheterized patients, as well as those subjected to extense surgery or
receiving broad spectrum antibiotic therapy. The diagnosis of invasive
candidiasis is specially difficult due to the absence of pathognomonic
symptoms specific of the disease and the low recovery of the
microorganism in culture. The present commercial diagnostic techniques
show a low specifity and sensitivity, being some of them too difficult to be
carried out in a Clinical microbiology laboratory. In order to overcome
these problems, a technique for the serologic diagnosis of invasive
candidiasis has been developed. This test is based upon the detection of
specific antibodies against antigens located on the cell wall surface of the
micelium of Candida albicans. These antibodies are normally present in
sera from patients with invasive candidiasis caused by C. albicans and
other species of this genus. The assay is performed by indirect
immunofluorescence after removal of other anti-candida antibodies usually
found in most human serum, thus avoiding possible false positive results.
This test can be performed with equipment available in a clinical laboratoy
and is completed in 3 hours.
Helicobacter pylori has a worldwide distribution and a high prevalence.
The infection with H. pylori is well established as a major cause of gastric
and duodenal ulcers. The persistent infection with H. pylori is a risk factor
for the development of gastric carcinoma and lymphoma. The infection
produces elevated levels of specific H. pylori IgG and IgA antibodies in
serum. IgM specific levels has not proven useful in the clinical laboratory.
ELISA tests for the detection of H. pylori antibodies are sensitive, specific
and cost effective in untreated patiens. The detection of H. pylori specific
IgA alone is less sensitive than the detection of specific IgG antibodies. In
untreated persons specific IgG and IgA remain elevated for years and
successful eradication decreases the IgG and IgA levels, although in some
individuals specific antibodies can persist during a long time. Because the
infection with H. pylori is so prevalent the test should be performed only
on individuals with symptoms. The prevalence of H. pylori antibodies
increases with the age. A positive result only indicates that the patient has
antibodies to H. pylori and if the individual has not been treated, a positive
result very likely indicates an active infection with H. pylori. A definitive
diagnosis should be given only when the clinical signs and symptoms of
the patient are compatible.