Significance of Positive control
In various fields, a positive control consistently serves as a benchmark in experiments. It's a known treatment or substance that produces a specific, expected effect. Researchers use positive controls, such as standard drugs or treatments, to validate experimental setups, compare results, and ensure that the experimental conditions are functioning correctly. The positive control group receives a treatment known to induce a measurable response, serving as a baseline for comparison with test substances or treatments.
Synonyms: Reference control, Standard control, Reference point, Benchmark, Standard, Calibration, Comparison, Baseline
The below excerpts are indicatory and do represent direct quotations or translations. It is your responsibility to fact check each reference.
Hindu concept of 'Positive control'
In the context of the provided text, "Positive control" in Hinduism is a benchmark or standard treatment/substance with a known effect. It serves as a reference point in experiments to compare the effectiveness of other treatments, like drugs, extracts, or formulations, against specific conditions.
From: Journal of Ayurveda and Integrated Medical Sciences
(1) This refers to the standard substances used to compare with the Vanga Bhasma in the antimicrobial study, like Cepfodoxime and Fluconazole.[1] (2) This is a standard treatment or substance known to produce a specific effect, used as a reference to compare the effectiveness of other treatments.[2] (3) A standard drug, Azithromycin 1 % w/v, used as a reference to compare the antibacterial activity of Tribulus terrestris extracts, indicating the expected inhibition of bacterial growth.[3] (4) This refers to a group of rats that received cypermethrin, which served as a reference point to compare the effects of the treatment on kidney damage.[4] (5) This is a treatment known to produce a specific effect, used to compare with the effects of Callicarpa macrophylla in studies.[5]
From: Journal of Ayurvedic and Herbal Medicine
(1) A positive control, using the antibiotic Streptomycin, was included in the antimicrobial testing to compare the effectiveness of Sida acuta extracts against known antimicrobial agents.[6] (2) A substance, allopurinol, used as a comparison to determine the effectiveness of the compounds in the study.[7] (3) This refers to a treatment known to produce a specific effect, used as a benchmark for comparison in the experiments. Chloroquine diphosphate was used as a positive control in the in vitro tests to evaluate the effectiveness of the extracts and compounds.[8] (4) These are substances, such as 3% Sodium hypochlorite solution and 2% Chlorhexidine solution, used for comparison in the study to assess the antibacterial potential of the test agent against Enterococcus faecalis.[9] (5) Tamoxifen was employed as a positive control for MCF-7 cells, while 5-Fluoro Uracil served as a positive control for other cell lines to measure the effects of various substances.[10]
From: International Research Journal of Ayurveda and Yoga
(1) Captopril, an angiotensin converting enzyme inhibitor (ACE-I) was used as a positive control.[11]
The concept of Positive control in scientific sources
Positive control is a standard or reference used in experiments to validate results. It's a substance or treatment known to produce a specific effect, serving as a benchmark to compare against new treatments or test samples, ensuring the experimental process is working correctly.
From: International Journal of Pharmacology
(1) Positive control, in this case tannic acid, serves as a reference to compare the inhibitory effects of plant extracts on GST activity, ensuring the validity and reliability of the experimental results.[12] (2) A U 6 snRNA probe was used as a positive control and it displayed a signal in the colon tissue of the control group, validating the in-situ hybridization technique.[13] (3) The positive control such as trolox, EDTA, galantamine, kojic acid and acarbose were used to compare the activity of the extract, providing a benchmark for its efficacy.[14] (4) Histopathological appearance of liver of rat, positive control (Vitamin E administration).[15] (5) This control was prepared by dissolving amoxicillin in sea water in the same concentrations as the plant extracts.[16]
From: Asian Journal of Pharmaceutics
(1) This is a substance with a known effect, used to compare the results of an experiment.[17] (2) This refers to Acarbose used as a standard in the study.[18] (3) These are controls used to ensure that the PCR amplification is working correctly.[19] (4) A substance with known antibacterial properties, such as amoxicillin, used for comparison in experiments.[20] (5) A substance known to cause skin irritation used as a control in the skin irritation study.[21]
From: Onderstepoort Journal of Veterinary Research
(1) Positive control samples gave an amplicon of the predicted size, and all positive control samples gave an amplicon of the predicted size (241 bp).[22] (2) A positive control, specifically Pseudomonas aeruginosa, was used in the negative staining procedure to ensure that the staining method was effective in visualizing capsules.[23] (3) This was used in each assay as a standard to compare the activity of the plant extracts against a known active compound.[24] (4) These were obtained from ARC-OVR Bacteriology and Feed and Food laboratories culture collections.[25] (5) Positive control is the trypanosome DNA used as a reference for comparison during PCR analysis to determine the trypanosome species present in the samples.[26]
From: The Malaysian Journal of Medical Sciences
(1) These are controls included in each assay, which are used with negative controls, as the text explains.[27] (2) These are specimens from confirmed positive cases, included with each batch of slides to ensure the accuracy and reliability of the in situ hybridization process.[28] (3) These are substances, such as chloramphenicol and nystatin, used in the antimicrobial activity tests to ensure that the assays are working correctly.[29] (4) The phage clones generated with the dengue anti-complex monoclonal antibody H3/6 were used as a positive control.[30] (5) A positive control is a substance, such as 1% Triton X-100, that is known to produce a specific effect, in this case, 100% haemolysis, and is used as a comparison.[31]
From: Journal of Medicinal Plants for Economic Development
(1) Is a sample or treatment used in an experiment to ensure that the experimental setup is working correctly.[32] (2) According to Tukey’s test, cell viability data were divided into 10 groups to determine the variance in activity between the extract groups and the positive control (Online Appendix 1).[33] (3) Positive controls, such as ciprofloxacin and ketoconazole, are used to compare the antimicrobial activity of the extract.[34] (4) Positive control is a group in the experiment that receives a known effective treatment, and chloroquine was used as a positive control to compare with the extracts.[35] (5) Positive control is insulin used to compare and assess the effect of the herbal preparations on glucose uptake by the cells.[36]
From: Journal of Public Health in Africa
(1) The positive control group in the study is the group with a PEM diet, serving as a comparison point to assess the impact of the other treatments on lymphocyte levels.[37] (2) A positive control is a treatment known to have an effect, in this study, 5-fluorouracil served as a positive control to compare with the tested compounds.[38] (3) This is another group used for comparison, with their genotype frequencies being analyzed in relation to the OBI group and cHBV.[39] (4) This was used in the polymerase chain reaction to confirm the presence of the blaOxa-48 gene.[40]
From: South African Family Practice
(1) A positive control is a substance, such as histamine, used in skin-prick testing to ensure the reliability of the test and proper reaction.[41]
From: International Journal of Pharmacology
(1) A sample known to contain the target antigen, used in immunohistochemistry to ensure the assay is working correctly.[42] (2) A group in an experiment that receives a known active treatment, used to validate the experimental setup.[43] (3) A positive control, consisting of cell lysate plus the supplied inhibitor, was used in the LOX activity assay.[44] (4) In this study, these were discs containing known concentrations of seven different antibiotics used for comparison with the plant extracts' effectiveness.[45] (5) A positive control is a sample or treatment in an experiment that is known to produce a specific effect, used as a benchmark for comparison.[46]
From: International Journal of Environmental Research and Public Health (MDPI)
(1) A positive control, represented by sodium dodecylsulfate (SDS), 1%, was employed in the HET-CAM assay for a better understanding of the effect induced by nicotine on the blood vessels.[47] (2) The use of ATCC ® 25922.[48] (3) A test that used Histamine.[49] (4) Positive control refers to a group treated with taurine to provide a basis for comparison against the effects of fermented oyster on exercise endurance.[50] (5) Positive controls are experiments conducted with a known substance that produces a positive result, and three positive controls with [ 14 C]-glucose were also prepared.[51]
From: Sustainability Journal (MDPI)
(1) Economic analysis revealed that T 6 (eight sprays of formulated P. putida + B. subtilis + four sprays of Curzate M 8) and T 16 (eight sprays of formulated P. putida , B. subtilis, and T. erinaceum + four sprays of Curzate M 8) performed better in consecutive two years, applying less fungicidal spray compared to T 1 (eight sprays of Curzate M 8 (Positive control)).[52] (2) The positive control achieved the strongest cyanobacteria proliferation with no lag phase, followed by the highest optical density of 2.4 achieved after 10 days of cultivation, serving as a benchmark for optimal growth conditions.[53] (3) To ensure validity, the experiment uses a positive control, with ciprofloxacin and chloramphenicol serving as positive controls for antibacterial activity.[54] (4) A positive control is a sample that contains the target substance, used to ensure that the assay is working correctly, and one of the samples used for standard curve construction was measured as a positive control.[55]
From: International Journal of Pharmacology
(1) These are substances like sulfaphenazole, quinidine, and ketoconazole used in the study to compare against the plant extracts, as mentioned in the text.[56]