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Polymerase Chain Reaction clinical trials

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NCT ID: NCT06120543 Not yet recruiting - Depression Clinical Trials

CYP1A2, ABCB1, CYP2C9 and Plasma Concentration of Agomelatine in Adult Patients With Depression

Start date: October 31, 2023
Phase:
Study type: Observational

1. The plasma concentrations of agomelatine and its two metabolites are simultaneously determined by High performance liquid chromatography-tandem mass spectrometry; 2. The gene polymorphisms of CYP1A2, ABCB1 and CYP2C9 are detected by fluorescence in situ hybridization or fluorescence polymerase chain reaction; 3. The correlation of CYP1A2, ABCB1, CYP2C9 gene polymorphisms with the blood concentration of agomelatine and its two metabolites is investigated by pharmacokinetic study; 4. According to the correlation between the above genotypes and blood drug concentration, a lean medication guidance scheme for agomelatine will be formed.

NCT ID: NCT05718596 Completed - Clinical trials for Periapical Periodontitis

Quantitative Assessment of the Efficacy of Sweeps Laser Activation Systems

Start date: September 10, 2022
Phase: N/A
Study type: Interventional

Aim of the present study was to determine the intraradicular microbiota of previously root canal-treated teeth with apical periodontitis using droplet digital polymerase chain reaction (ddPCR) and to investigate the antibacterial effectiveness of different irrigation activation methods [ Sweeps laser and PUI group ] that will make classical chemomechanical preparation more effective. This superiority, parallel, randomized clinical trial was conducted in the clinic of the Endodontic Department, Faculty of Dentistry, Istanbul Medipol University, Istanbul. 30 patients with apical periodontitis (one tooth each) were randomly allocated into two groups according to the used (n=15, for each): the Sweeps laser group (A) or the vdw ultra group (B). Total bacterial loads, as well as the amount of Enterococcus faecalis (E.faecalis) were determined before (S1) and after (S2) chemomechanical preparation and finally, after intracanal medication (S3) by means of ddPCR.

NCT ID: NCT05690763 Completed - Clinical trials for Periapical Periodontitis

Quantitative Assessment of the Efficacy of Two Irrigation Activation Systems

Start date: February 7, 2022
Phase: N/A
Study type: Interventional

Aim of the present study was to determine the intraradicular microbiota of previously root canal-treated teeth with apical periodontitis using droplet digital polymerase chain reaction (ddPCR) and to investigate the antibacterial effectiveness of different irrigation activation methods [ XP-endo Finisher and EndoActivator ] that will make classical chemomechanical preparation more effective. This superiority, parallel, randomized clinical trial was conducted in the clinic of the Endodontic Department, Faculty of Dentistry, Istanbul Medipol University, Istanbul. 20 patients with posttreatment apical periodontitis (one tooth each) were randomly allocated into two groups according to the used (n=10, for each): the EA group (A) or the XPF group (B). Total bacterial loads, as well as the amount of Enterococcus faecalis (E.faecalis) were determined before (S1) and after (S2) chemomechanical preparation and finally, after intracanal medication (S3) by means of ddPCR.

NCT ID: NCT05605145 Recruiting - Diagnosis Clinical Trials

PCP in Immunocompromised Population in Southern China

PCP
Start date: May 12, 2021
Phase:
Study type: Observational

To evaluate the sensitivity and specificity of the combined detection system for the diagnosis of pneumocystis infection in immunocompromised population in Southern China.

NCT ID: NCT04978545 Completed - Clinical trials for Periapical Periodontitis

The Effect of Ca(OH)2 in Apical Periodontitis

Start date: January 1, 2019
Phase: N/A
Study type: Interventional

Aim of the present study was to determine the intraradicular microbiota of previously root canal-treated teeth with apical periodontitis using droplet digital polymerase chain reaction (ddPCR) and to investigate the antibacterial effectiveness of different intracanal medicaments [Ca(OH)2 and CHX] that will make classical chemomechanical preparation more effective. This superiority, parallel, randomized clinical trial was conducted in the clinic of the Endodontic Department, Faculty of Dentistry, Istanbul Medipol University, Istanbul. Sixteen patients with posttreatment apical periodontitis (one tooth each) were randomly allocated into two groups according to the intracanal medicament used (n=8, for each): calcium hydroxide (CH) and 2% chlorhexidine gel (CHX) group. Total bacterial loads, as well as the amount of Enterococcus faecalis (E.faecalis) were determined before (S1) and after (S2) chemomechanical preparation and finally, after intracanal medication (S3) by means of ddPCR.

NCT ID: NCT04946682 Recruiting - Meningitis Clinical Trials

Optimal Encephalitis/Meningitis Roadmap Via Precise Diagnosis and Treatment

Start date: April 14, 2021
Phase: N/A
Study type: Interventional

Encephalitis and meningitis are serious central nervous system diseases. There is currently a lack of comprehensive and accurate diagnosis and treatment pathways. Therefore, we conducted this multicenter, prospective, and randomized controlled study. It was designed to evaluate the diagnostic performance and its impact on the outcomes of the patients enrolled. As such, we came to the results of the optimal process of diagnosis and treatment strategy of encephalitis/meningeal syndromes with improved effective treatments.

NCT ID: NCT04721457 Completed - COVID-19 Clinical Trials

The Efficacy of Pre-procedural Mouth Rinses on COVID-19 Saliva Viral Load

Start date: January 3, 2021
Phase: Phase 4
Study type: Interventional

Preoperative antiseptic mouth rinses have been widely used as a standard protocol before routine dental treatment reduces oral microorganism counts. During dental procedures, aerosolized microorganisms contaminate the dental environment and nearby surfaces and remain suspended for 4 hours. Thus, the reduction in the number of aerosolized microorganisms by pre-procedural rinsing may reduce cross-contamination between dentists, office personnel, and patients. Recent reviews have advocated the use of preoperative rinsing to control and reduce the risk of SARS-CoV-2 transmission. However, no clinical studies have been done yet to support the effectiveness of any pre-procedural oral rinses against SARS-CoV-2. The proposed study will mitigate the spread of COVID-19 disease in dental healthcare facilities and ensure the patients' good health and healthcare workers. The purpose of this clinical trial is to compare the efficacy of four commercially available mouth rinses povidone-iodine (PVP-I), hydrogen peroxide (H2O2), cetylpyridinium chloride (CPC), sodium hypochlorite (NaOCl) on the salivary SARS-CoV-2 viral load at four-time points (baseline and 5-, 30-, and 60-min post rinsing) relative to two control groups (distilled water and no-rinse) in a cohort of positive COVID-19 patients.

NCT ID: NCT04604145 Completed - SARS-CoV Infection Clinical Trials

Self-Collected Saliva Samples Without Viral Transport Media for COVID-19 Testing Via RT-PCR

Start date: February 3, 2021
Phase: N/A
Study type: Interventional

This is a study that will attempt to validate the process for detecting SARS-CoV-2 (COVID19) on a non-FDA-approved technology using self-collected saliva as the specimen. Investigators will compare self-collected saliva samples and healthcare-worker collected nasopharyngeal samples (Nasal swabs) to see if the self-collected saliva samples are similar in terms of diagnostic accuracy. Investigators will be performing this testing at the site where patients regularly go for COVID19 testing. There will be minimal risk of harm as consenting patients will only have to provide a small amount of saliva into a tube.

NCT ID: NCT04361448 Terminated - Covid-19 Clinical Trials

Performance of 3 Sampling Methods for the Detection of SARS-CoV-2 (COVID-19) With Real-time Reverse Transcriptase PCR

Start date: April 20, 2020
Phase: N/A
Study type: Interventional

The performance of 3 different sampling methods (2 nasopharyngeal swabs, 1 oropharyngeal swab) for the detection of SARS-CoV-2 with real-time reverse transcriptase polymerase chain reaction will be compared.

NCT ID: NCT04269174 Not yet recruiting - Clinical trials for Antibiotic Resistant Strain

The Utility of Biofire Filmarray in Evaluation of Entero Pathogens Triggers in Patients With Chronic Diarrhea

Start date: February 2020
Phase:
Study type: Observational

Chronic diarrhea is a common condition and a key symptom in many disorders. It is a major cause of morbidity and mortality worldwide and one of the most common reasons for referral to a gastroenterology clinic.The prevalence varies depending on population and the definition of diarrhea used. It affects approximately 5% of the population at any given point in time, although the exact prevalence is unknown. Diarrhea is associated with 4 pathophysiological mechanisms: osmotic, secretory, exudative and altered motility. It is more useful to classify patients presenting with symptoms of diarrhea according to ''functional'' or ''organic'' characteristics. It is usually difficult to make a reliable differentiation between organic and functional causes in patients with chronic diarrhea based only on history and physical examination . The standard evaluation of patients with chronic diarrhea that begins with a detailed history, a careful physical examination and then basic diagnostic tests is critical for optimal treatment and prevention. Initially, thought needs to exclude several other possibilities as (a) fecal incontinence masquerading as diarrhea, (b) iatrogenic diarrhea due to drugs, surgery, or therapeutic radiation, (c) chronic infections, and (d) irritable bowel syndrome with diarrhea (IBS-D). The detection of a broad array of potentially offending agents has traditionally required a combination of microbiologic approaches, including bacterial culture, antigen detection, microscopy, and polymerase chain reaction (PCR). The new multiplex PCR-based panels have several advantages over conventional methods including (i) reduced sample volume requirements, (ii) broad coverage without the need to select specific tests, (iii) enhanced ability to detect coinfections (iv) increased sensitivity and specificity as high as 97-100% and (v) higher throughput.The food and drug administration (FDA) cleared and recommended the use of FilmArray GI panel (BioFire Diagnostics), which targets 22 analytes (bacteria with bacterial toxin, viruses, and parasites)