scholarly journals Immunostimulant Activity of Marchantia paleacea Bertol. Herb Liverwort Ethanol Extract in BALB/c Mice

2021 ◽  
pp. 464-473
Author(s):  
Dicki Bakhtiar Purkon
Keyword(s):  
Immune Response ◽  
Antibody Titer ◽  
Ethanol Extract ◽  
Delayed Type Hypersensitivity ◽  
Phagocytic Index ◽  
Control Group ◽  
Specific Response ◽  
Secondary Antibody ◽  
Phytochemical Screening ◽  
Marchantia Paleacea

Immunostimulants are compounds that can stimulate an immune response by increasing the activity of non-specific and specific components of the immune system (humoral and cellular) against certain infections and diseases. The liverwort plant species Marchantia paleacea Bertol. has long been used as a source of nutrition and empirical medicine. However, scientifically there is still not much research data on immunomodulators in these plants. This study aims to determine the activity of immunomodulators in the ethanol extract of the herb Marchantia paleacea Bertol. in male mice of BALB/c strain. Bioactive compounds from this plant were extracted by maceration method using 96% ethanol. Extract characterization and phytochemical screening were determined according to WHO guidelines and standard procedures from previous studies. The immunomodulatory activity of the extract was tested by carbon clearance method and lymphoid organ index (non-specific responses), primary and secondary antibody titer tests (humoral specific responses), IL-2 cytokine levels and IFN-ɣ from serum secondary antibodies and delayed-type hypersensitivity reaction/DTH (cellular specific response). The results of qualitative phytochemical screening contained flavonoid compounds, saponins, phenolics, tannins and steroids/triterpenoids. The results of the non-specific immune response immunomodulator test showed that the dose of 52 mg/kg bw had the largest phagocytic index of 1.52 which included strong immunostimulation (K > 1.5) and the organ spleen index of 0.55 ± 0.11 which increased significantly compared to the control (p<0.05). The data on the acquisition of specific immune responses in the primary and secondary antibody titer test in the three test extracts resulted in increased titer levels compared to the control and at a dose of 52 mg/kg bw could significantly increase the levels of IL-2 cytokines in the control group (p<0,05). Meanwhile, in the DTH test, doses of 13 and 26 mg/kg bw could significantly increase the thickness of the soles of mice compared to controls (p<0.05).

Evaluation of Immunomodulatory activity of Diosgenin in rats

2018 ◽  
Vol 4 (3) ◽  
pp. 70-75
Author(s):  
Vikram V Nimbalkar ◽  
Urmila E Kadu ◽  
Ravina P Shelke ◽  
Suvarna A Shendge ◽  
Pratiksha N Tupe ◽  
...  
Keyword(s):  
Immune Response ◽  
Dosage Level ◽  
Negative Control ◽  
Delayed Type Hypersensitivity ◽  
Phagocytic Index ◽  
Control Group ◽  
Immunomodulatory Activity ◽  
Positive Effects ◽  
Nonspecific Immunity ◽  
Stimulation Of

Background: The immune system is intrinsic to health. Modulation of the immune responses to alleviate the diseases by using herbal plants has been of interest for many years. Diosgenin, a naturally occurring steroid saponin mainly present in the seeds of fenugreek (Trigonella foenum graecum) and in the root tubers of wild yams (Dioscorea villosa). Activation of specific and nonspecific immunity results in stimulation of immune response. Diosgenin has the positive effects on both specific and nonspecific immunity. Aim: To study the immunomodulatory activity of Diosgenin in albino wistar rats. Method: The suspension of Diosgenin was given orally at the dosage level of 50, 100 and 150 mg/kg for 21 days in a rat. The immunomodulatory activity on specific and non-specific immunity was studied by heamagglutination antibody (HA) titer, delayed type hypersensitivity (DTH) response and carbon clearance test.  Immunosuppression in a rat was induced by using Cyclophosphamide (100 mg/kg, p.o.). Sheep red blood cells (SRBCs) were used as antigen (0.1ml 20% SRBCs). Result: Diosgenin exhibited significant increase in the production of antibody titer in response to SRBC antigen. A significant increase in both primary and secondary HA titer was observed in immunosuppressed group treated with Diosgenin when compared with negative control.  A significant increase in the DTH response was observed in immunosuppressed animals treated with Diosgenin, pre-sensitized with SRBCs antigen. Diosgenin exhibited significant increase in phagocytic index against control group, indicating the stimulation of the reticuloendothelial system. Conclusion: The study indicates that Diosgenin triggers stimulatory effect on specific and nonspecific immune response. The immunostimulant effect of Diosgenin could be attributed due to its saponin glycoside.

scholarly journals Short Communication: Stimulatory effect of Curcuma mangga on immune response against Staphylococcus aureus

2020 ◽  
Vol 12 (2) ◽  
Author(s):  
Yuandani YUANDANI ◽  
SONY EKA NUGRAHA ◽  
LIA LAILA ◽  
SETIA DAME SILABAN ◽  
FADHILAH RAMADHANI
Keyword(s):  
Staphylococcus Aureus ◽  
Immune Response ◽  
Antibody Titer ◽  
Short Communication ◽  
Ethanol Extract ◽  
Delayed Type Hypersensitivity ◽  
Immunomodulatory Activity ◽  
Hypersensitivity Response ◽  
Immunostimulatory Activity ◽  
Delayed Type Hypersensitivity Response

Abstract. Yuandani, Nugraha SE, Laila L, Silaban SD, Ramadhani F. 2020. Short Communication: Stimulatory effect of Curcuma mangga on immune response against Staphylococcus aureus. Nusantara Bioscience 12: 109-113. Recently, the ethanol extract of Curcuma mangga Val. rhizomes were found to have immunomodulatory activity by enhancing phagocytic ability. This study was carried out to evaluate the effect of C. mangga rhizomes on antibody titer and delayed-type hypersensitivity response in normal and doxorubicin-induced rats against Staphylococcus aureus. The extract was administered orally at doses of 100, 200, and 400 mg/kg body weight (bw) to rats for 72 hours prior to sensitization of Staphylococcus aureus, then continued for 14 days. Doxorubicin (4.67 mg/kg bw) was administered on days 8 and 11 to suppress the immune system. The antibody titer of normal and immune-suppressed rats after the treatment with C. mangga ethanolic extract was significantly higher than the rats with negative control (P<0.05). Ethanol extract of C. mangga also demonstrated stimulation on delayed-type hypersensitivity response which was indicated by the increase of paw volume. The extract at dose of 400 mg/kg bw showed higher immunostimulatory activity than Levamisole as a positive control. The results indicated that the ethanol extract of C. mangga shows immunostimulatory activity, confirming its potential to be developed as a therapeutic agent.

AKTIVITAS IMUNOMODULATOR FRAKSI ETIL ASETAT DAUN SOM JAWA (Talinum paniculatum (Jacq.) Gaertn) TERHADAP RESPON IMUN SPESIFIK

2018 ◽  
Vol 15 (2) ◽  
pp. 48
Author(s):  
Ika Puspitaningrum ◽  
Yuvianti Dwi Franyoto ◽  
Siti Munisih
Keyword(s):  
Immune Response ◽  
Ethyl Acetate ◽  
Antibody Titer ◽  
Ethyl Acetate Fraction ◽  
The Body ◽  
Delayed Type Hypersensitivity ◽  
Immunomodulatory Activity ◽  
Specific Response ◽  
Test Results ◽  
Antibody Titers

ABSTRACTEthyl acetate fraction of Som Java leaves (Talinum paniculatum (Jacq.) Gaertn) has been shown to boost innate immunity in the body (non-specific immunomodulatory activity). This study aims to determine the immunomodulatory activity of the specific response of the ethyl acetate fraction of Som Java leaves (Talinum paniculatum (Jacq.) Gaertn). Test specific immune response by using delayed type hypersensitivity test and total antibody titers test. Analysis of data obtained using SPSS version 16.0. Delayed type hypersensitivity test results showed that the ethyl acetate fraction Som Java leaves 50, 100 and 150 mg/kgbw proven to increase cellular immune response and activities comparable to the positive control. Total antibody titer test results showed that the fraction of ethyl acetate Som Java leaves three doses shown to increase the value of primary and secondary antibody titers. Based on the test results specific response can be concluded that the ethyl acetate fraction Som Java leaves have specific immunomodulatory activity.Keywords: Talinum paniculatum (Jacq.) Gaertn, immunomodulatory, delayed type hypersensitivity, total antibody titer test

scholarly journals How Dopamine Influences Survival and Cellular Immune Response of Rhipicephalus microplus Inoculated with Metarhizium anisopliae

2021 ◽  
Vol 7 (11) ◽  
pp. 950
Author(s):  
Thaís Almeida Corrêa ◽  
Jéssica Fiorotti ◽  
Emily Mesquita ◽  
Laura Nóbrega Meirelles ◽  
Mariana Guedes Camargo ◽  
...  
Keyword(s):  
Immune Response ◽  
Metarhizium Anisopliae ◽  
Cellular Immune Response ◽  
Tick Control ◽  
Rhipicephalus Microplus ◽  
Phagocytic Index ◽  
Control Group ◽  
Immune Functions ◽  
Phenoloxidase Activity ◽  
Cellular Immune

Dopamine (DA) is a biogenic monoamine reported to modulate insect hemocytes. Although the immune functions of DA are known in insects, there is a lack of knowledge of DA’s role in the immune system of ticks. The use of Metarhizium anisopliae has been considered for tick control, driving studies on the immune response of these arthropods challenged with fungi. The present study evaluated the effect of DA on the cellular immune response and survival of Rhipicephalus microplus inoculated with M. anisopliae blastospores. Exogenous DA increased both ticks’ survival 72 h after M. anisopliae inoculation and the number of circulating hemocytes compared to the control group, 24 h after the treatment. The phagocytic index of tick hemocytes challenged with M. anisopliae did not change upon injection of exogenous DA. Phenoloxidase activity in the hemolymph of ticks injected with DA and the fungus or exclusively with DA was higher than in untreated ticks or ticks inoculated with the fungus alone, 72 h after treatment. DA was detected in the hemocytes of fungus-treated and untreated ticks. Unveiling the cellular immune response in ticks challenged with entomopathogenic fungi is important to improve strategies for the biological control of these ectoparasites.

scholarly journals Isolation and Identification of Some Probiotic Bacteria and Their Potential Role in Improving Immune Response and Resistance of Nile Tilapia (Oreochromis niloticus) in Comparison with a Commercial Product

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Mosleh M. Abomughaid
Keyword(s):  
Immune Response ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Management Tool ◽  
Phagocytic Index ◽  
Control Group ◽  
Second Phase ◽  
Feeding Experiment ◽  
Isolation And Identification

This work aimed to retrieve a field isolate of probiotic from Nile tilapia (Oreochromis niloticus) and compare the obtained results with a commercial probiotic product through experimental studies. The study was conducted on 250 Nile tilapia. Ten fish were used to isolate the probiotic strain. Two isolates showed an in vitro inhibitory effect against pathogenic A. hydrophila. The isolate with the largest zone was identified by PCR. Sixty fish were used to test the safety of a potential probiotic. One hundred and eighty fish were used in a two-month feeding experiment. Fish were divided into 3 groups, group (1): the control, group (2): fed on potential probiotics, and group (3): fed on commercial probiotic (Organic Green™). The effects of tested products on the immune response were recorded in all groups. After one and two months of feeding experiment, blood and nonspecific immune parameters were evaluated. Disease resistance against Aeromonas hydrophila was evaluated through challenge experiment. The histopathology of the treated groups was fully recorded in comparison with the control group. The potential probiotic based on the in vitro antimicrobial activity test was identified as P. putida using routine and gel electrophoresis and 16S rRNA sequencing. During the first and the second month of experiment, there was a highly significant increase in the survival percent of the experimental fish in both treated groups with probiotics. In the first phase of the experiment, a significant increase in the haematocrit values and NBT, lysozyme activity, and phagocytic activity was seen in all treated groups in comparison with the control. The increase in the TLC was significant in the group fed with P. putida in comparison with the control group. In the second phase, a nonsignificant increase in the hematocrit values and significant increases in the NBT and phagocytic index were seen in P. putida and organic green groups in comparison with the control group. The TLC and DLC revealed nonsignificant changes in the treated groups in comparison with the control. The RLP in the groups treated with P. putida was higher than that in those treated with organic green. Although probiotics are an important management tool in aquaculture, it should be subjected to scientific laboratory tests and field measurements.

scholarly journals Impact of Prebiotics and Synbiotics Administered in ovo on the Immune Response against Experimental Antigens in Chicken Broilers

Animals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 643
Author(s):  
Tadeusz Stefaniak ◽  
Jan P. Madej ◽  
Stanisław Graczyk ◽  
Maria Siwek ◽  
Ewa Łukaszewicz ◽  
...  
Keyword(s):  
Immune Response ◽  
Humoral Immune Response ◽  
Physiological Saline ◽  
Treated Group ◽  
Delayed Type Hypersensitivity ◽  
Saline Control ◽  
Control Group ◽  
In Ovo ◽  
Humoral Immune ◽  
Air Chamber

The effect of the in ovo application of selected prebiotics and synbiotics on the humoral immune response against T-dependent (SRBC) and T-independent (dextran) antigens and delayed-type hypersensitivity (DTH) to phytohemagglutinin was studied. On the 12th day of incubation, 800 eggs (Ross 308) were divided into five groups and injected into the egg air chamber with prebiotic inulin (Pre1), Bi2tos (Pre2), a synbiotic composed of inulin and Lactococcus lactis subsp. lactis IBB SL1 (Syn1), a synbiotic composed of Bi2tos and L. lactis subsp. cremoris IBB SC1 (Syn2), and physiological saline (control group; C). The chickens were immunized twice at the 7th and 21st day of life with SRBC and dextran. A DTH test was performed on the 7th, 21st, and 35th day. The application of prebiotics and synbiotics had no significant effect on the humoral immune response. SRBC-immunized in ovo Pre1- and Pre2-treated chickens showed significantly higher serum IgG levels than the control. A significant effect on the DTH reaction was detected on the 7th (Pre1 < C) and 21st (Pre2 > Syn2) day. However; Bi2tos may transiently stimulate the cellular immune response on the 21st day. It may be concluded that the application of inulin in an egg air chamber on the 12th day of incubation may stimulate the secondary immune response. The inulin-treated group exhibited a lower mortality rate than the control group.

scholarly journals The Combination of Ethanol Extracts of Phyllanthus niruri Linn, Typhonium flagelliforme and Piper crocatum increase the Macrophage Phagocytosis In Vitro

2020 ◽  
Vol 25 (2) ◽  
pp. 67
Author(s):  
Reynelda Juliani Sagala ◽  
Retno Murwanti
Keyword(s):  
Immune Response ◽  
Extraction Procedure ◽  
Ethanolic Extract ◽  
Ethanol Extract ◽  
Phagocytic Index ◽  
Combination Group ◽  
Immunomodulatory Activity ◽  
Phyllanthus Niruri ◽  
Phagocytic Capacity ◽  
Macrophage Phagocytosis

Research on the activity of Phyllanthus niruri Linn, Typhonium flagelliforme (Lodd.) Blume and Piper crocatum have been conducted and showed various immunomodulatory activity. This study aims to investigate the immunomodulatory activity of the combination of the ethanolic extracts of Phyllanthus niruri Linn, Typhonium flagelliforme (Lodd.) Blume, and Piper crocatum by determining its macrophages phagocytic index and macrophages phagocytic capacity. Therefore, such a combination could be an alternative drug to increase immune response. In this study, the extraction procedure was carried out through maceration by using an ethanolic solvent. Combinations of herbs ethanol extract were varied in four groups of combination, at three different concentrations of 1 μg/ml, 10 μg/ml, and 100 μg/ml for each group. Macrophages were isolated from the peritoneum cavity of male mice (Mus musculus), and its phagocytic activity was quantified through the Leijh method (1986). The phagocytic index and phagocytic capacity of macrophages were determined by using latex beads as a trigger of phagocytosis and compared with negative controls of media, DMSO, and four groups of ethanolic extract combinations in different concentrations. The results indicate that all of combination group ethanol extract with a concentration of 10 μg/ml was significantly (p<0.05) optimum activated phagocytic index. Therefore the combination of Phyllanthus niruri Linn, Piper crocatum, and Thyphonium flagelliforme (Lodd.) Blume ethanolic extract might be prospective to increase nonspecific immune response.

scholarly journals ANTIDIABETIC AND ANTIHYPERLIPIDAEMIC EFFECTS OF THE ETHANOL EXTRACT OF THE LEAVES AND STEM OF CISSUS GRACILLIS (GULL ET PERR) (VITACEAE)

2021 ◽  
pp. 54-56
Author(s):  
OLUSAYO A SHORINWA ◽  
GORDON EI EMENU
Keyword(s):  
Blood Glucose ◽  
Ethanol Extract ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Control Group ◽  
Albino Rats ◽  
Phytochemical Screening ◽  
Glucose Levels ◽  
Diabetic Control Group ◽  
Alloxan Monohydrate

Objectives: This study investigated the antidiabetic and antihyperlipidemic potential of the ethanol extract of the leaves and stem of Cissus gracillis on alloxan monohydrate-induced diabetic albino rats. Methods: Preliminary phytochemical screening and acute toxicity were carried out. Animals were assigned into seven groups of five rats each. Groups A and B were administered 10 mg/kg each of glibenclamide and atorvastatin respectively, C, D, and E were given 125, 250 and 500 mg/kg of ethanol extract of C. gracillis, respectively, daily for 21 days through oral gavage, group F was diabetic but untreated (diabetic control group), while group G was non-diabetic and untreated which served as the control group. Results: Phytochemical screening revealed the presence of steroids/triterpenoids and carbohydrates. LD50 was above 5000 mg/kg. The extract at 500 mg/kg showed a statistically significant (p<0.05) decrease in blood glucose level when compared with the glibenclamide group on day 21. However, gradual non- significant reduction in blood glucose levels were observed in the extract treated groups on the 7th, 14th, and 21st days of treatment. The administration of ethanol extract of C. gracillis to alloxan-induced diabetic rats produced a decrease in total cholesterol, triglycerides, and low-density lipoproteins comparable to glibenclamide and atorvastatin. Conclusion: The ethanol extract of the leaves and stem of C. gracillis possess a mildly significant antidiabetic and antihyperlipidemic activity.

scholarly journals Past SARS-CoV-2 infection elicits a strong immune response after a single vaccine dose

2021 ◽  
Author(s):  
Rossana Elena Chahla ◽  
Rodrigo Hernan Tomas-Grau ◽  
Silvia Ines Cazorla ◽  
Diego Ploper ◽  
Esteban Vera Pingitore ◽  
...  
Keyword(s):  
Immune Response ◽  
Health Personnel ◽  
Vaccine Dose ◽  
Antibody Responses ◽  
Control Group ◽  
Prior History ◽  
Secondary Antibody ◽  
Strong Immune Response ◽  
History Of Disease ◽  
History Of

We hypothesized that in individuals with previous SARS-CoV-2 infection, the first vaccine dose would work as a booster, eliciting a faster and more intense immune response. We herein describe antibody responses to the first and second doses of Gam-COVID-Vac (SPUTNIK V) vaccine in health personnel of Tucuman, Argentina, with previous COVID-19 and compared it with uninfected personnel. Individuals with anti-SARS-CoV-2 titers at baseline showed significantly higher responses to the first dose than people with no prior history of disease (p <0.0001), with titers higher to those registered after the second dose in the control group, representing a clear secondary antibody response. This suggests that a single dose of SPUTNIK V for people with previous SARS-CoV-2 infection could contribute to a better use of available doses.

scholarly journals Protective effect of cytosine-phosphate-guanosine oligodeoxynucleotide against experimental mastitis induced by Cryptococcus neoformans infection in goats

2017 ◽  
Vol 40 (2) ◽  
pp. 113-123
Author(s):  
Nidhal R. Mahdi
Keyword(s):  
Mammary Gland ◽  
Cryptococcus Neoformans ◽  
Interferon Gamma ◽  
Antibody Titer ◽  
Delayed Type Hypersensitivity ◽  
Phagocytic Index ◽  
Cell Mediated Immunity ◽  
The Right ◽  
High Level ◽  
Phosphate Buffered Saline

     The present study investigated the effect of synthetic non-methylated oligonucleotides containing Cytosine-phosphate-guanosine dinucleotides (Cytosine-phosphate-guanosine oligodeoxynucleotide) on caprine mastitis with Heat Killed Cryptococcus neoformans Ag. 20 healthy local breed does were used with weight ranging of 25-30 Kg and free of mastitis by examination via California Mastitis Test and Somatic Cell Count. The does were allotted into four equal groups, the first group (G1) was treated intramammary with 100μg/kg of Cytosine-phosphate-guanosine oligodeoxy nucleotide on fifth day postpartum in the right mammary gland while the left mammary gland served as control and were infused with sterile phosphate buffered saline. On day 8 postpartum repeat dosages of Cytosine-phosphate-guanosine oligodeoxynucleotide and phosphate buffered saline were infused respectively. On day 9 pp the right mammary gland was infused with 2ml of 2x108 cell/ml of Heat Killed Cryptococcus neoformans Ag. The second group (G2) was infused at day 9 postpartum with 2ml of 2x108 cell/ml of Heat Killed Cryptococcus neoformans Ag in the right mammary gland only. The third group (G3) was left until the challenge test done after one week of immunization in the G1 and G2, by inoculation of 2ml of 5x106 viable C. neoformans in the right mammary gland. The fourth group (G4) was kept as a control receiving 2ml of sterile PBS. Blood samples were collected at 0, 5, 10, 20, 30 and 40 days of the study, to determine the antibody titer by passive haemagglutination assay, while the cell mediated immunity was evaluated by detecting the goat Interferon Gamma by ELISA test and Phagocytic index. Also the cell mediated immunity was determined by delayed type hypersensitivity test after 21 days of immunization. The results showed a significant variation (P≤0.05) between vaccinated groups (G1 and G2) and the control. However, there was a significant increase (P≤0.05) of skin thickness shown after 48 hrs in the G1compared to G2. High level of Interferon Gamma concentration was noticed in the G1 as compared with other groups. Moreover, cell mediated immunity developed effectively in the G1 which was noted by a significant increase (P≤0.05) of phagocytic activity of polymorphonuclear cells. The high level of antibody titer was observed in the G1 as compared with other groups. In conclusion: These results suggest that vaccination with Cytosine-phosphate-guanosine oligodeoxynucleotide plus Heat Killed Cryptococcus neoformans Ag intramammary lead to a good protection of caprine mammary glands against C. neoformans mastitis.

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