INTRODUCTION Herpes simplex virus (HSV) and varicella zoster virus (VZV) are responsible for a variety of human diseases, including central nervous system diseases. The use of polymerase chain reaction (PCR) techniques on cerebrospinal fluid samples has allowed the detection of viral DNA with high sensitivity and specificity. METHODS Serial dilutions of quantified commercial controls of each ...

The aim of this study was to demonstrate the DNA of Paracoccidioides brasiliensis in human serum samples of patients with paracoccidioidomycosis using the polymerase chain reaction (PCR). The diagnosis of paracoccidioidomycosis (PCM) was defined by microscopic observation of the fungus on direct exam or histopathology, culture, and serological positivity. DNA from serum of 33 patients with PCM ...

vian malaria, epidemic in Thailand’s chicken farms, is caused by Plasmodium gallinaceum. The standard method for detecting avian malaria is microscopic diagnosis, but parasites may go undetected in light infections. Therefore, the objective of this study was to detect P. gallinaceum DNA in infected fresh-blood samples by nested polymerase chain reaction (nested PCR). Primers were designed from ...

This study aimed at implementing a Nested-polymerase chain reaction (Nested-PCR) for the molecular diagnosis of human T-cell lymphotropic virus type I/II (HTLV-I and HTLV-II) infections in peripheral blood mononuclear cells of infected subjects in Argentina. The sensitivity and specificity of the assay for the detection of regional strains were assessed by comparing them with the molecular assa...

background: leishmaniasis is a common parasitic disease world wide. leishmania tropica and l. major are two common cause of cutaneous leishmaniasis in iran. the aim of this study was determination of the cause of cutaneous leishmaniasis in shush city, khouzestan province, southwest iran methods: one hundred samples were collected from patients at the age of 1-80 year with documented cutaneous l...

In-house polymerase chain reaction (PCR) assays are now an integral part of the work of most diagnostic microbiological laboratories. Despite the availability of commercial reagent 'master-mixes' of some PCR reagents, the optimisation of primers still poses a significant problem. Here, we describe a simple method to assess the concentration of primer needed in single round, multiplex, nested an...

BACKGROUND The main goal of this study was to evaluate the diagnostic efficacy of melanoma-associated antigen (MAGE) A1-6 reverse transcriptase-nested polymerase chain reaction (RT-nested PCR) of bronchial washing fluid for the detection of lung cancer invisible by bronchoscopy. PATIENTS AND METHODS To determine the expression of MAGE A1-6 gene in 75 lung carcinomas diagnosed by conventional ...

Background: Circoviruses are small, non-enveloped, single stranded DNA viruses. There is scarce information about these agents in non-psittacine birds. Aims: It is attempted to detect and characterize circoviruses in non-psittacine birds. Methods: Forty-five samples were collected from different non-psittacine species belonging to seven avian o...

To understand human papillomavirus (HPV) and expression of osteopontin (OPN) in cervical diseased tissues, HPV infection was detected in paraffin-embedded specimens of cervical lesions from 90 patients with cervical cancer. Three polymerase chain reaction (PCR) techniques were used to determine the detectable rate of HPV infection. Expression of HPV OPN protein was detected using immunohistoche...