Order : K014-H1 / K014-H5

Dear Clients, 

We are happy to announce that another promo is available as of today: 

1. Intended Use 

Avian influenza virus H7N9 real time RT-PCR kit is used for the detection of gene H7 and gene N9 of avian influenza A subtype H7N9 in human nasal and pharyngeal secretions and bird fece by using real time PCR systems.

2. Principle of Real-Time PCR

The principle of the real-time detection is based on the fluorogenic 5’nuclease assay. During the PCR reaction, the DNA polymerase cleaves the probe at the 5’ end and separates the reporter dye from the quencher dye only when the probe hybridizes to the target DNA. This cleavage results in the fluorescent signal generated by the cleaved reporter dye, which is monitored real-time by the PCR detection system. The PCR cycle at which an increase in the fluorescence signal is detected initially (Ct) is proportional to the amount of the specific PCR product. Monitoring the fluorescence intensities during Real Time allows the detection of the accumulating product without having to re-open the reaction tube after the amplification.

3. Product Description

Highly pathogenic avian influenza (HPAI) caused by certain subtypes of influenza A virus in animal populations, particularly chickens, poses a continuing global human public health risk. Direct human infection by an avian influenza A (H5N1) virus was first recognized during the 1997 outbreak in Hong Kong. The avian influenza virus H7N9 is one subgroup among the larger group of H7 viruses. Some cases of human infection with H7N9 virus in China are confirmed till early April of 2013.

Avian influenza virus H7N9 real time RT-PCR kit contains a specific ready-to-use system for the detection of avian influenza virus H7N9 by Reverse Transcription Polymerase Chain Reaction (RT-PCR) in the real-time PCR system. The master contains Super Mix for the specific amplification of the avian influenza virus H7N9 RNA. The reaction is done in one step real time RT-PCR. The first step is a reverse transcription (RT), during which the avian influenza virus H9 RNA is transcribed into cDNA. Afterwards, a thermostable DNA polymerase is used to amplify the specific gene fragments by polymerase chain reaction. Fluorescence is emitted and measured by the real time systems´ optical unit during the PCR. The detection of amplified avian influenza virus H7N9 DNA fragment is performed in fluorimeter channel FAM and HEX/VIC/JOE with the fluorescent quencher BHQ1. In addition, the kit contains a system to identify possible PCR inhibition by measuring the FAM fluorescence of the internal control (IC).

 4. Kit Contents

Analysis sensitivity: 1×10³copies/ml；

Note: Analysis sensitivity depends on the sample volume, elution volume, nucleic acid extraction methods and other factors .If you use the RNA extraction kits recommended, the analysis sensitivity is the same as it declares. However, when the sample volume is dozens or even hundreds of times greater than elution volume by some concentrating method, it can be much.

Our Price: EUR 562

For additional information, here is a full view of Gentaur's AIV-related products: 

http://antibody-antibodies.com/search_full.php?search=AIV

Dear Clients,

From the 1^st May until 30^th June we will be offering 20% off the list price of our flashBAC kits.

This includes:

flashBAC 3,5,24 reaction kits.

flashBAC GOLD 3,5,24 reaction kits.

flashBAC ULTRA 3,5,24 reaction kits

flashBAC PRIME 3,5,24 reaction kits.

Hurry and call us today to secure your product!

The Cysticercosis Antigen (Ag) ELISA (Ref. 650501) is a sandwich Enzyme-Linked ImmunoSorbent Assay based on monoclonal antibodies for the qualitative determination of viable metacestodes (cysticerci) of Taenia spp. in human and porcine serum samples.

-  Analytical sensitivity: 1 cyst is detectable in certain conditions
- Incubation times: assay 45 minutes + sample prep <30 minutes
- Available format: 96T

Taenia solium cysticercosis is an infection of humans and pigs with metacestode larvae (cysticercus) of Taenia solium. Circulating antigen detection in serum is an important diagnostic method that indicates the presence of viable parasites. The monoclonal antibodies used in this assay are produced against excretory secretory products (ESP) of viable T. saginata cysticerci. The glycoprotein antigens detected by these monoclonal antibodies are present on the tegument and in the excretory secretory products of metacestodes.

The assay demonstrates the presence of viable cysticerci only, it does not detect degenerated or calcified cysticerci. In this respect, unlike antibody detection, measurement of circulating antigen levels allows differentiation of cysticercosis cases with viable parasites, with antigen levels correlating to the numbers and size of lesions. It can as such also provide a tool for serological monitoring of antiparasitic therapy in human or pigs: antigen levels drop rapidly after successful anthelminthic treatment.

Porcine cysticercosis

The assay is genus specific, not species specific. The assay does not allow the differentiation between infections of different Taenia species in pigs. In experimentally infected pigs, circulating antigens were first detected between 2 and 6 weeks post infection and remained present generally throughout an observation period of 6 months, even in pigs carrying only five to eight living cysts. The minimum number of living cysts, that could be detected using the Cysticercosis Ag ELISA, was one.

Human cysticercosis

Because T. solium is the only Taenia sp. causing cysticercosis in man, the test is specific. No cross-reactions were observed with sera from patients with other parasitologically and/or serologically confirmed infections. The sensitivity of the assay decreases when the number of viable cysts is low; infections with one viable cyst are often not detectable. Antigen levels are generally higher in extraparenchymal neurocysticercosis (NCC) (particularly subarachnoid NCC) than in intraparenchymal NCC; therefore, high antigen levels should lead one to suspect the presence of extraparenchymal NCC.

Download datasheet

Adapting Cells To a Serum-Free Environment

Fully defined, animal-component free and GMP produced cell culture supplement.

Performing cell culture without serum can be challenging. However, the rewards do largely recompense the efforts, and re-discove- ring the basics of cell culture develops quickly into a passion. The intention of this paper is to guide the user to a smooth transition to serum-free conditions and to avoid all inadequate or inappropriate efforts.

Ideally, the transition to serum-free conditions should be carried out over several passages to gradually select cells that can grow under serum-free conditions. However, direct adaptation to serum-free environments may also work out successfully, provided that all crucial aspects are addressed properly.

Regardless of the method used, key concerns include the growth state of the cellular inoculum, cell seeding density, sub-cultivation techniques, and biophysical attributes of the cell culture system.

Our XerumFree™ serum replacement has been designed so as to be used in the same way as conventional cell culture sera, as a medium supplement. The concentration however is 5x higher, so typically you will use 2% to a basal medium. You will go through the same steps as usual.

Be the first to order this brand new product!

Download datasheet with instructions for use