scholarly journals The Efficacy of Ranikhet Disease Vaccines Produced by Livestock Research Institute of Bangladesh

2013 ◽  
Vol 1 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Sreebas Chandra Sarkar ◽  
Sukumar Saha ◽  
Md Mansurul Amin ◽  
Md Golzar Hossain

The study was conducted to investigate the efficacy of Baby chick Ranikhet Disease Vaccine (BCRDV) and Ranikhet Disease Vaccine (RDV) produced by the Livestock Research Institute (LRI), Mohakhali, Dhaka. For this experiment, 100 day-old-chick was purchased from Phinex Hatchery Ltd., Gazipur. The chicks (n=100) were divided into two groups. In group A (n=50), vaccination was performed twice with BCRDV at 2 and 21 days of age through intraocular route (i/o) followed by once with RDV at 60-day of age through intramuscular (i/m) route. Group B (n=50) was kept as unvaccinated control. The immunogenicity of the vaccine was evaluated by measuring the serum HI antibody titers at 1-, 20-, 36-, and 76-day of age, while the vaccine efficacy was examined by a challenge infection experiment with a velogenic field isolate of NDV as well as passive protection test. It was observed that the maternal antibody titers of the unvaccinated control group B gradually declined from day 1 to day 76 of age. Conversely, after primary and secondary vaccination with BCRDV, the levels of serum HI titer slightly increased in vaccinated group A compared with those in control group B. Finally administration of RDV resulted in a sharp increase in HI titer, leading to protection from challenge infection with virulent field virus as well as passive protection test. These results clearly demonstrated that a prime-booster immunization with BCRDV and RDV, both produced by LRI, is effective to protect chicken against Newcastle disease (ND).DOI: http://dx.doi.org/10.3329/mh.v1i1.13706 Microbes and Health Vol.1(1) June 2012 pp.9-13

1970 ◽  
Vol 27 (1) ◽  
pp. 1-5
Author(s):  
S Kamrunnahar ◽  
MM Alim ◽  
AHM Taslima ◽  
MA Islam ◽  
NC Paul

A comparative efficacy of four lyophilized Newcastle disease vaccine, namely, Medivac ND-LaSota®, BCRDV®, Izovac B1 Hitchner® and Cevac Vitapest-L® in regard to the production of Himagglutination Inhibition (HI)- antibody was accomplished. For this, a total of 75 chicks were equally divided into five experimental groups such as, A, B, C, D and E. The HI antibody titers of group A vaccinated on 5 and 21 days of age with Medivac NDLaSota ® fluctuated among the Mean ± SD of 89.60 ± 33.05, 102.40 ± 33.05 and 192 ± 67.46 at 15 (10 DPV), 19 (14 DPV) and 31 (26 DPV) days of age respectively. As regards, group B administered with BCRDV® on the same days, the HI titers varied with the Mean ± SD of 83.20 ± 30.91, 102.40 ± 33.04 and 204.80 ± 66.09 at 15 (10 DPV), 19 (14 DPV) and 31 (26 DPV) days of age respectively. When considered the HI antibody titers of group C inoculated with Izovac B1 Hitchner® on days 5 and 21 of age, HI titer exhibited the Mean ± SD of 80.00 ± 43.33, 96.00 ± 33.73 and 192.00 ± 67.46 at 15 (10 DPV), 19 (14 DPV) and 31 (26 DPV) days of age respectively. Elucidation of HI antibody titers of group D birds receiving Cevac Vitapest-L® on same days were recorded to be of Mean ± SD of 96.00 ± 33.73, 115.20 ± 26.98 and 320.00 ± 173.31 at 15 (10 DPV), 19 (14 DPV) and 31 (26 DPV) days of age respectively. In birds of unvaccinated control group E, HI titers were found to be ranged from 32- 64, 16-32, 8-16, 4-8 and 2-4 with Mean ± SD of 48.00 ± 16.87, 24.00 ± 8.43, 11.20 ± 4.13, 5.20 ± 1.93 and 3.40 ± 0.97 on 3, 15, 17, 19 and 31 days of age respectively. Thus, it was found that birds of group A, B, C and D vaccinated with Medivac ND-LaSota®, BCRDV®, Izovac B1 Hitchner® and Cevac Vitapest-L® induced slightly higher level of HI antibody titers than that of BCRDV. Maternally derived antibody (MDA) persisted to a minimal level until the age of chicks of day 17 and later on MDA declined. Keywords: Vaccine; Antibody Titer; Newcastle Disease VirusDOI: http://dx.doi.org/10.3329/bjm.v27i1.9159 BJM 2010; 27(1): 1-5


2014 ◽  
Vol 30 (2) ◽  
pp. 41-45 ◽  
Author(s):  
S Sultana ◽  
S Saha ◽  
MM Amin

This study compared the immunogenicity of alum-precipitated formalin-killed fowl cholera vaccines (BAU-FCV and LRI-FCV) in Jinding ducks. The ducks were divided into three groups (A = 14, B = 14, C = 12). Group A was inoculated with BAU- FCV 0.5 mL and group B with LRI- FCV 1.0 mL intramuscularly (im) at the age of six weeks and group C served as unvaccinated control. Booster vaccination was administered similarly at 11 weeks of age in groups A and B. Challenge infection was given to all birds two weeks after booster vaccination. Passive Haemagglutination Assay (PHA) antibody titres in group A were 59.4 ± 4.6 21 days after primary vaccination, 137.1 ± 21.8 15 days after booster vaccination, 100.6 ± 12.9 21 days after booster vaccination, and 256.0 ± 48.4 15 days after challenge. In group B, titres were 50.3 ± 6.5, 118.9 ± 9.1, 91.4 ± 12.9, 237.7 ± 51.7, respectively, whereas titres in group C remained at ?4.0 ± 0.0. The antibody titres were insignificant when compared between pre-vaccination and 21 days after primary vaccination in both vaccinated groups (A and B). PHA antibody titres of groups A were significantly (P < 0.0001) increased at 15 days after booster and in case of group B the antibody titres were insignificant. At 15 days after challenge the antibody titres were highly significant in both groups (A and B). There was no significant difference between the two vaccinated groups. Following challenge infection with virulent Pasteurella multocida 88.9% of birds vaccinated with BAU-FCV, and 77.8% of birds vaccinated with LRI-FCV survived, while all unvaccinated birds died. Both vaccines were safe and effective. DOI: http://dx.doi.org/10.3329/bvet.v30i2.18253 Bangl. vet. 2013. Vol. 30, No. 2, 41-45


1970 ◽  
Vol 2 (2) ◽  
pp. 117-119 ◽  
Author(s):  
MT Hossain ◽  
MA Islam ◽  
S Akter ◽  
M Sadekuzzaman ◽  
MA Islam ◽  
...  

Effect of dose and time of vaccination on immune response of duck plague vaccine in 90 (45 of 18-day-old and 45 of 35-day-old) Jinding ducklings was studied during the period from October 2002 to March 2003. Each of both age group (18-day-old and 35-day-old) was divided into three groups as A, B, C and D, E, F respectively, consisting of 15 ducklings in each. Each duckling of groups A and B was primarily vaccinated with 0.25 ml and 0.5 ml of duck plague vaccine (LRI, Mohakhali) intramuscularly at 18 days old respectively and could not be boosted due to the death of all the ducklings of both groups within 20 days of primary vaccination. Each duckling of group D and E received 0.5 ml and 1.0 ml of duck plague vaccine (LRI, Mohakhali) intramuscularly at 35 days old respectively and ducks of both the groups boosted with 1.0 ml of vaccine 5 months after primary vaccination. Groups C and F served as unvaccinated control. 14 days after booster vaccination ducks of group D, E and F were challenged with the virulent field isolate of duck plague virus @ 1.0 ml / duck IM (104 EID50 / dose). The ducklings of group D that were vaccinated primarily at 35 days old with 0.5 ml and boosted after 5 months with 1.0 ml of duck plague vaccine had significantly (p< 0.01) higher PHA titres after 2 weeks of primary vaccination (38.4 ± 6.4), booster vaccination (153.6 ± 25.6) and challenge infection (281.6 ± 62.71) in comparison to control group (≤4, ≤4 and 20.0 ± 2.3 respectively) and all the ducks survived (100%) after challenge. The ducklings of group E that were vaccinated primarily at 35 days old and boosted after 5 months of primary vaccination with 1.0 ml of duck plague vaccine had also significantly (p< 0.01) higher PHA titres after two weeks of booster vaccination (76.8 ± 12.8) and challenge infection (153.6 ± 25.6) in comparison to control group, but only 8 (53.3%) ducks could protect the challenge infection with virulent duck plague virus. It may be concluded that ducklings below 30 days of age should not be vaccinated with duck plague vaccine. It also may be proposed that primary vaccination at 35 days old with duck plague vaccine (LRI, Mohakhali) @ 0.5 ml / duckling and booster vaccination after 5 months of primary vaccination @ 1.0 ml could be practiced for better immune response against duck plague.Key words: effect; dose; age; immune response; duck plague vaccine; ducksdoi: 10.3329/bjvm.v2i2.2542Bangl. J. Vet. Med. (2004). 2 (2): 117-119


1970 ◽  
Vol 7 (2) ◽  
pp. 295-299
Author(s):  
MZ Uddin ◽  
MSR Khan ◽  
F Begum ◽  
MA Mannan

The study was performed with a view to isolate and identify a virulent strain of S. gallinarum and determine the purity, safety and efficacy of BIO-TYPHOID® vaccine. A total of 40 backyard layer chicken were used for this study where Group A was used for experimental vaccination, Group B kept as control and Group C was used for calculating virulent S. gallinarum challenge dose. Primary and secondary vaccination was carried out at 40 days and 110 days of age, respectively. Blood samples were collected to obtain the sera after vaccination from both vaccinated and unvaccinated control group and antibody titres were determined by Microplate agglutination test. The antibody titre increased in primary vaccination up to days 56 days post vaccination (DPV) and then decreased gradually. The highest antibody titre (Mean ± SE) 384.00 ± 42.67 was obtained at 91 DPV (21 days later of secondary vaccination) and maintained up to 98 DPV. Safety test was done by inoculating mice and purity test of the vaccine was done by inoculating on to Blood Agar media. The efficacy of BIO-TYPHOID® vaccine was recorded as 90% which was determined by challenge infection with 0.1 ml of 5x105 CFU virulent S. gallinarum. Results of this study revealed successful protections by BIO-TYPHOID® vaccine. Keywords: BIO-TYPHOID® vaccine; Chicken; Efficacy; Fowl Typhoid DOI: 10.3329/jbau.v7i2.4737 J. Bangladesh Agril. Univ. 7(2): 295-299, 2009


1970 ◽  
Vol 27 (1) ◽  
pp. 1-7
Author(s):  
LR Barman ◽  
MN Islam ◽  
MF Flensburg ◽  
A Permin ◽  
SL Petersen ◽  
...  

Two vaccination regimens against Newcastle disease were compared. A total of 180crossbred (RIR × Fayoumi) day-old chicks were obtained from the government PoultryFarm. At three days of age, 10 birds were randomly selected and killed to obtain bloodsamples for serum collection. The remaining 170 birds were divided into three groups.Group A, (55) received a locally produced live lentogenic Newcastle disease virus (NDV)vaccine called “Baby Chick Ranikhet Disease Vaccine” (BCRDV) intraocularly at threeand 28 days of age followed by a live mesogenic NDV vaccine namely “Ranikhet DiseaseVaccine” (RDV) intramuscularly at 60 days of age. Group B, (55) was vaccinated with animported live lentogenic commercial vaccine intraocularly at three, 28 and 60 days of age.Group C, (60) served as unvaccinated control. Further blood samples were collected onday 28, 60 and 74 from all groups. All the sera were tested for haemagglutinationinhibition (HI) antibody titre to NDV. At 75 days of age, 30 birds from each of the twovaccinated groups and 32 birds from the unvaccinated group were challenged with avelogenic viscerotropic field isolate of NDV. The chicks had a high level of maternal HIantibodies at three days of age with a geometric mean titre (GMT) of log2 4.8, but thatgradually declined in the unvaccinated group. Following vaccination there was noremarkable rise in the antibody titre at 28 and 60 days of age (GMT>log2 3.5), but at 74days of age, the GMT of HI antibody in Group A (log2 5.9) was significantly higher thanthat in the Group B (log2 4.1). Following challenge, 100% morbidity and 65.6% mortalitywere observed in the unvaccinated group. Among the vaccinated groups, only 16.7%morbidity and no mortality were noticed in Group A but 43.3% morbidity and 10%mortality were observed in Group B. It is suggested that a vaccination programme basedon lentogenic priming and mesogenic booster gave better protection against velogenicviscerotropic NDV challenge than that based on lentogenic vaccine only. (Bangl. vet. 2010. Vol. 27, No. 1, 1 – 7)DOI: 10.3329/bvet.v27i1.5908


Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 4537-4537
Author(s):  
Piotr Centkowski ◽  
Lidia Brydak ◽  
Magdalena Machala ◽  
Ewa Kalinka ◽  
Maria Blasinska-Morawiec ◽  
...  

Abstract The aim of this study was to assess humoral response to influenza vaccination in 47 patients with non-Hodgkin lymphoma (NHL) in comparison with 45 healthy individuals (age 12–76 years, median 41 years; 13 males and 32 females). Patients (age 36–82, median 60 years; 24 males and 23 females) consisted of two groups, previously treated with chemotherapy (group A, n=32) or untreated (group B, n=15). In autumn 2003, all subjects were vaccinated with influenza vaccine ([Isquo]influvac’, Solvay Pharmaceuticals B.V.). Antibody responses to influenza hemagglutinin and neuraminidase were determined in sera collected before and 1 month after vaccination by hemagglutination and neuraminidase inhibition tests. Statistical analysis was performed using the Mann-Whitney unpaired and Wilcoxon paired tests. After vaccination geometric mean antibody titers (GMTs) of antihemagglutinin (HI) antibodies significantly increased (p<0.05) and mean fold increases (MFIs) from 10.3 to 26.7 in group A, 5.9 to 48.9 in group B and from 9.1 to 24.4 in the controls. Pre-vaccination protection rate, i.e. the number of subjects with the protective HI antibody titers >1:40, ranged from 0% to 9.4% in group A, 0% to 13.3% in group B and from 2.2% to 20% in the controls. After vaccination protection rates increased and ranged from 78.1% to 87.5%, 73.3% to 93.3% and 66.7% to 82.2%, respectively. Response rates, i.e. the number of subjects with at least 4-fold increase of HI antibody titers after vaccination, ranged from 59.4% to 84.4%, 73.3% to 86.7% and from 51.1% to 66.7%, respectively. In both study groups and in the controls, post-vaccination antineuraminidase (NI) antibody titers were higher (p<0.05) than pre-vaccination titers. MFIs of NI antibody levels ranged from 9.8 to 17.3 in group A, 6.5 to 10.9 in group B and 4.8 to 10.3 in the controls. After vaccination, only hemagglutinin H1 antibody titers were (p<0.05) higher in the controls than in the study group A and B. In the other cases, there were no statistically significant differences between groups or there were higher values in patients with NHL than in the control group. The results of this study indicate that influenza vaccine is immunogenic in patients with NHL and stimulates production of HI and NI antibodies in the titers comparable to healthy subjects.


Author(s):  
Patil Aniket ◽  
Dindore Pallavi ◽  
Arbar Aziz ◽  
Kadam Avinash ◽  
Saroch Vikas

The quest for excellence in mental and physical health is not new. We find various references and formulations in Ayurvedic classics meant for promoting mental and physical health of a child. Suvarna Prashan is one of the formulations explained in age old Ayurvedic classic Kashyap Samhita. This formulation is very widely used now days as a memory and immune booster for children. But there is very little systematic documented study which can be used to evaluate the efficacy of the formulation. Suvarna Bhasma was prepared in Ayurved Rasayani Pharmacy, Pune. Madhu and Ghrita were collected from KLE Ayurveda Pharmacy, Belgaum. Suvarna Bindu Prashan was prepared in KLE Ayurved pharmacy, Belgaum. It contains Suvarna Bhasma, Ghrita and Madhu. Twenty apparently healthy male and female children with age group of three to four years were ready to sign inform consent form were selected into two groups each. Subjects in Group A received Suvarna Bindu Prashan where as Group B (Control group) did not receive any treatment. Both the groups were observed for six months. Children in Suvarna Bindu Prashan group showed significant reduction in the scores of eating habits, behavior, mood, temperament and scores of event of illness. However there was no significant difference in the score of sleeping habit. There was significant increase in IQ percentage.


2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Jianguo Liu ◽  
Liehui Xiao ◽  
Hezhongrong Nie ◽  
Yong Pan ◽  
Yan Liu ◽  
...  

Abstract Objective To investigate the impact of microecological preparation combined with modified low-carbon diet on the glucolipid metabolism and cardiovascular complication in obese patients. Methods From August 2017 to July 2020, 66 obese patients were recruited, and administrated with an modified low-carbon diet with (group A) or without (Group B) microecology preparation and a balanced diet in control group (group C) for 6 months. Meanwhile, 20 volunteers administrated with a balanced diet were recruited as the healthy control group (group D). Results After 6-month intervention, obese subjects in group A and B showed significant improvement of body and liver fat mass, reduction of serum lipid levels, intestinal barrier function markers, insulin resistance index (IRI), high blood pressure (HBP) and carotid intima thickness, as compared with subjects in group C. More importantly, subjects in group A had better improvement of vascular endothelial elasticity and intimal thickness than subjects in group B. However, these intervention had no effect on carotid atherosclerotic plaque. Conclusion Administration of microecological preparation combined with modified low-carbon diet had better improvement of intestinal barrier function, glucose and lipid metabolism, and cardiovascular complications than low-carbon diet in obese patients, but the effect of a simple low-carb diet on carotid atherosclerotic plaque need to be further addressed.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Guanyu Yang ◽  
Zefei Zhu ◽  
Hongyu Zheng ◽  
Shifeng He ◽  
Wanyue Zhang ◽  
...  

Abstract Background This study explored the comparison of the thermal insulation effect of incubator to infusion thermometer in laparoscopic hysterectomy. Methods We assigned 75 patients enrolled in the study randomly to three groups: Group A: Used warming blanket; group B: Used warming blanket and infusion thermometer; group C: Used warming blanket and incubator. The nasopharyngeal temperature at different time points during the operation served as the primary outcome. Results The nasopharyngeal temperature of the infusion heating group was significantly higher than that of the incubator group 60 min from the beginning of surgery (T3): 36.10 ± 0.20 vs 35.81 ± 0.20 (P<0.001)90 min from the beginning of surgery (T4): 36.35 ± 0.20 vs 35.85 ± 0.17 (P<0.001). Besides, the nasopharyngeal temperature of the incubator group was significantly higher compared to that of the control group 60 min from the beginning of surgery (T3): 35.81 ± 0.20 vs 35.62 ± 0.18 (P<0.001); 90 min from the beginning of surgery (T4): 35.85 ± 0.17 vs 35.60 ± 0.17 (P<0.001). Regarding the wake-up time, that of the control group was significantly higher compared to the infusion heating group: 24 ± 4 vs 21 ± 4 (P = 0.004) and the incubator group: 24 ± 4 vs 22 ± 4 (P = 0.035). Conclusion Warming blanket (38 °C) combined infusion thermometer (37 °C) provides better perioperative thermal insulation. Hospitals without an infusion thermometer can opt for an incubator as a substitute. Trial registration This trial was registered with ChiCTR2000039162, 20 October 2020.


Biology ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 12
Author(s):  
David Chavarri-Prado ◽  
Aritza Brizuela-Velasco ◽  
Ángel Álvarez-Arenal ◽  
Markel Dieguez-Pereira ◽  
Esteban Pérez-Pevida ◽  
...  

Objectives: To determine the effect of mechanical loading of bone on the stability and histomorphometric variables of the osseointegration of dental implants using an experimental test in an animal model. Materials and Methods: A total of 4 human implants were placed in both tibiae of 10 New Zealand rabbits (n = 40). A 6-week osseointegration was considered, and the rabbits were randomly assigned to two groups: Group A (Test group) included 5 rabbits that ran on a treadmill for 20 min daily during the osseointegration period; Group B (Controls) included the other 5 that were housed conventionally. The monitored variables were related to the primary and secondary stability of the dental implants (implant stability quotient—ISQ), vertical bone growth, bone to implant contact (BIC), area of regenerated bone and the percentage of immature matrix. Results: The results of the study show a greater vertical bone growth (Group A 1.26 ± 0.48 mm, Group B 0.32 ± 0.47 mm, p < 0.001), higher ISQ values (Group A 11.25 ± 6.10 ISQ, 15.73%; Group B 5.80 ± 5.97 ISQ, 7.99%, p = 0.006) and a higher BIC (Group A 19.37%, Group B 23.60%, p = 0.0058) for implants in the test group, with statistically significant differences. A higher percentage of immature bone matrix was observed for implants in the control group (20.68 ± 9.53) than those in the test group (15.38 ± 8.84) (p = 0.108). A larger area of regenerated bone was also observed for the test implants (Group A 280.50 ± 125.40 mm2, Group B 228.00 ± 141.40 mm2), but it was not statistically significant (p = 0.121). Conclusions: The mechanical loading of bone improves the stability and the histomorphometric variables of the osseointegration of dental implants.


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