scholarly journals EFFECTS OF BERENIL ON THE PATHOGENESIS OF TRYPANOSOMIASIS IN Trypanosoma brucei INFECTED RATS

2021 ◽  
Vol 21 ◽  
pp. 142-145
Author(s):  
J. S. Rabo ◽  
A. B. Wakil ◽  
H. C. C. Maduka
Keyword(s):  
Choroid Plexus ◽  
Brain Tissue ◽  
Trypanosoma Brucei ◽  
Severe Disease ◽  
Acute Stage ◽  
Albino Rats ◽  
Cerebral Lesions ◽  
Group A ◽  
Rats And Mice

Ten Albino rats were each infected intraperitoneally with 0.5 million Trypanosoma strain 8/18 organisms. Cerebral lesions were absent in all rats and mice injected with brain tissue and choroid plexus homogenates from group A rats were aparasitaemic over anobservation period of 30 days. However, infected rats developed intermittent (parasitaemia, lost weight progressively and became anaemic with death intervening in one case. We conclude that T. bricci strain 8/18 infection in rats produces moderate to severe disease which may lead to death; but the organism is is not pushed across the blood-brainbarrier by berenil treatment in the acute stage.

scholarly journals ETHNOPHARMACOLOGICAL STUDY OF BRAIN OXIDATIVE STRESS IMPROVING POTENTIAL OF CURCUMIN IN INTOXICATED RATS

2021 ◽  
pp. 62-66
Author(s):  
FATEN IBRAHIM EL-SAYED
Keyword(s):  
Oxidative Stress ◽  
Body Weight ◽  
Brain Tissue ◽  
Treated Group ◽  
Control Group ◽  
Albino Rats ◽  
Stress Effect ◽  
Stress Effects ◽  
Stress Markers ◽  
Group A

Objective: The following study aimed to investigate the efficacy of curcumin at preventing amikacin neurotoxicity Methods: Twenty-four male Wister albino rats were randomly divided into four groups including-G (1): control group includes six rats, they were administered 0.5 ml of saline orally for 14 consecutive days. G (2): includes six rats; they were administered 200 mg/kg curcumin orally for 14 consecutive days. G (3): includes six rats, they were administered 300 mg/kg body weight/day of amikacin intraperitoneally for 14 consecutive days G (4): includes six rats, they were administered 200 mg/kg curcumin orally concurrently with 300 mg/kg body weight/day of amikacin. All animals were kept in the same conditions from feed, heat and humidity. Results: According to the result obtained after sacrification of all animals after the end of 14 d, Results revealed that amikacin at the dose rate of 300 mg/kg b. wt for 14 d induces significant changes in oxidative stress markers compared to the control group, a significant reduction in CAT. SOD. GSH (1.51±0.16, 77.00±0.73 and 84.06±4.42) respectively compared to control (3.63±0.11, 98.48±0.18 and 117.05±0.52) along with a significant increase in MDA activity (219.02±3.34) compared to control group (180.42±0.19), That indicate oxidative stress effect of it. On the beneficial side rats received amikacin 300 mg/kg B. wt I/p concurrently with 200 mg/kg b. wt curcumin for successive 14day result in a significant increase in CAT. SOD. GSH (2.23±0.09,92.00±0.26, 102.25±1.71) and decrease in MDA concentration (139.23±3.89) compared to amikacin treated group levels along with histopathological changes appear in brain tissue in the group treated with amikacin include nuclear pyknosis and degeneration in some neurons in the hippocampus, multiple focal eosinophilic plaque formation in the striatum also this results enhanced by activated caspase-3 expression in the brain tissue following amikacin administration. Conclusion: The present study proved that Oral administration of curcumin at the dose of 200 mg/kg for 14 d concurrently with amikacin significantly mitigates its neurotoxic and oxidative stress effects.

scholarly journals Evaluation of the Efficacy of a Combination of Artemether and ‎Diminazene Aceturate Therapy in Experimental Trypanosoma brucei ‎Infection in Rats

2020 ◽  
Vol 17 (2) ◽  
pp. 7-12
Author(s):  
E. W. Okonkwo ◽  
B. M. Anene ◽  
J. I. Ihedioha
Keyword(s):  
Body Weight ◽  
Trypanosoma Brucei ◽  
Post Infection ◽  
Standard Dose ◽  
Experimental Period ◽  
Albino Rats ◽  
Diminazene Aceturate ◽  
Group A ◽  
Effective Treatment Regimen ◽  
Group B

This study evaluated the efficacy of a combination of artemether and diminazene aceturate therapy in experimental Trypanosoma brucei infection in rats. Thirty five male albino rats used for the study were randomly assigned to seven groups of five rats each as follows: Group A- infected and treated with diminazene aceturate (DA) at 7.0 mg/kg body weight (bw), intramuscular (IM) once on day 7 post-infection (pi); Group B – infected and treated with artemether (ART) at 3.2 mg/kg bw IM on day 7pi and 1.6mg/kg bw IM on days 8,9,10 and 11pi; Groups C,D and E, – infected and treated with DA at 7.0 mg/kg bw IM, 3.5 mg/kg bw IM, and 1.75 mg/kg bw IM respectively, once on day 7pi and ART  at 3.2 mg/kg bw IM on day 7pi plus 1.6mg/kg bw on days 8,9,10 and 11pi; Group F –infected, untreated and Group G – uninfected, untreated. Onset of parasitaemia (OP), level of parasitaemia (LOP), clearance of parasites post treatment, mortality post infection, relapse of parasitaemia post clearance, rectal temperature, and body weight, were determined at specified intervals during the 70-day experimental period. Results showed that there were no significant (p>0.05) variations in the OP and LOP between the infected groups. Trypanosomes were cleared from the blood of rats in group A, C, D, and E after treatment. All the rats in groups B and F were dead by day 14pi. The infection relapsed in groups C and E.  It was concluded that a combination of DA (3.5mg/kg bw once) and ART (3.2 mg/kg bw on day 1 of treatment and 1.6 mg/kg bw for 4 consecutive days) exhibited efficacy comparable to the standard dose of DA at 7mg/kg in the treatment of trypanosome brucei in rats and could thus possibly constitute an effective treatment regimen to reduce the dose of DA and avoid toxicity.  

scholarly journals In vivo effect of the aqueous extract of Adansonia digitata (Linn) fruit pulp on Trypanosoma brucei brucei infection in Wistar rats

2020 ◽  
Vol 17 (4) ◽  
pp. 1-8
Author(s):  
O.O. Ogunleye ◽  
I.D. Jatau ◽  
A.J. Natala ◽  
CO Idehen ◽  
O. Salami ◽  
...  
Keyword(s):  
Body Weight ◽  
Trypanosoma Brucei ◽  
Aqueous Extract ◽  
Albino Rats ◽  
Fruit Pulp ◽  
Adansonia Digitata ◽  
Trypanosoma Brucei Brucei ◽  
Significant Difference ◽  
Group A

This study investigated the effects of aqueous extract of fruit pulp of Adansonia digitata on albino rats infected with Trypanosoma brucei brucei. Acute toxicity test was conducted on the extract and then analysed for some phytoconstituents. Thirty-five adult rats were divided into seven groups of five rats each. Group A were the non-infected control group while groups B, C, D, E, F and G were inoculated with 1x 106 trypanosomes per 100 g body weight (BW). At day 6 post infection (6 PI), groups C and D were treated with diminazene aceturate and vitamin C at dose rates of 3.5 mg/kg BW intra peritonealy once and 200 mg/kg BW orally for 3 days respectively, while groups E, F, G were orally treated for 3 days with 40, 80, and 160 mg/kg BW of the extract respectively. The rats were monitored for parasitaemia, PCV and body weight. The LD50 of the extract was greater than 9000 mg/kg. The phytochemical analysis revealed 3.51% flavonoid, 0.07% alkaloid, 0.10% saponin and 0.03.0% oxalate in the extract. While there was progressive increase in parasitaemia from day 6 PI in groups E and F throughout the study, parasitaemia decreases and was completely cleared by day 8 and 11 PI in groups C and G respectively. PCV of group A was not significantly different (p>0.05) from that of F and G. There was significant difference (p<0.05) in the PCV of Group A and that of groups B and C and highly significantly different (p<0.01) with that of D and E. Significant (p<0.05) body weight increase of rats in groups D, E, F and G at day 10 PI was observed. Thus, fruit pulp of A. digitata at a dose of 9000 mg/kg was not toxic to rats, and contains active compounds with potential In vivo anti-trypanosoma activity. Keywords: Adansonia digitata, Albino rats, Animal trypanosomosis, Phytochemicals, Trypanosoma brucei brucei

scholarly journals THU0351 MUSCLE INVOLVEMENT IN PATIENTS WITH SYSTEMIC SCLEROSIS AND ANTI-PM/SCL+ ANTIBODIES IS ASSOCIATED WITH CARDIAC AND PULMONARY INVOLVEMENT. ANALYSIS OF THE MULTICENTRE EUSTAR COHORT.

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 407.1-407
Author(s):  
M. G. Lazzaroni ◽  
S. Zingarelli ◽  
P. Airò ◽  
Y. Allanore ◽  
O. Distler
Keyword(s):  
Systemic Sclerosis ◽  
Cardiac Involvement ◽  
Severe Disease ◽  
Disease Onset ◽  
Pulmonary Involvement ◽  
Left Ventricular ◽  
Research Support ◽  
Muscle Involvement ◽  
Group A ◽  
Tendon Friction Rubs

Background:Anti-PM/Scl antibodies positivity has been associated with frequent skeletal muscle involvement in patients with Systemic Sclerosis (SSc) in different studies, including the EUSTAR cohort (1). Moreover, although myositis has been previously associated with heart involvement in SSc patients (2), this issue has never been explored among anti-PM/Scl+ patients.Objectives:To evaluate the cardiac involvement in anti-PM/Scl patients with SSc in the large multicentre EUSTAR database, with focus on the subgroup of patients with muscle involvement.Methods:Patients from the EUSTAR database were included when the item anti-PM/Scl was fulfilled in at least one visit.Results:Anti-PM/Scl status was available in 7,353 SSc patients from EUSTAR database: 295 were anti-PM/Scl+. After exclusion of 151 patients with multiple autoantibody positivity, 144 anti-PM/Scl + patients were compared with 7,058 anti-PM/Scl- patients. Among them, 3,120 (44.2%) were positive for ACA, 2,361 (33.5%) for anti-Topo I and 274 (3.88%) for anti-RNAP3.Regarding the specific cardiac outcomes, in the anti-PM/Scl+ as compared to the anti-PM/Scl- group, a decreased rate of elevated sPAP at ECHO was recorded (12.8% vs 25.0%, p:0.001), while no differences were observed in the frequency of conduction blocks (26.2% vs 23.7%, p:0.526), abnormal diastolic function (33.9% vs 36.4%, p:0.582), pericardial effusion (10.2% vs 10.9%, p:1.000) and LVEF ≤50% (4.76% vs 6.11%, p:0.818). In multivariate analysis, adjusted for age at disease onset, sex, and disease duration, the negative association of anti-PM/Scl with elevated sPAP was not confirmed (p:0.061).When comparing anti-PM/Scl+ patients with (n=47) and without (n=87) CK elevation, the former group had a higher frequency of conduction blocks (43.2% vs 17.5%, p:0.005; OR 95% CI 3.47, 1.51-7.97) and left ventricular dysfunction, both diastolic (45.6% vs 27.2%, p:0.050; OR 95% CI 2.25, 1.05-4.81) and systolic (LVEF ≤50% 13.3% vs 0%, p:0.018; OR 95% CI 16.8, 0.87-324). Moreover, anti-PM/Scl+ patients with CK elevation had significantly increased rate of lung fibrosis on HRCT (p:0.045), intestinal symptoms (p:0.017), joint contractures (p:0.045) and tendon friction rubs (p:0.034).Conclusion:In the largest series of anti-PM/Scl positive SSc patients so far reported, muscle involvement in anti-PM/Scl+ patients (defined as increased serum CK) seems to represent a marker of a more severe disease phenotype, including a higher frequency of cardio-pulmonary involvement.References:[1]Lazzaroni MG, et al. Ann Rheum Dis 2018. 77 (2), 421-2.[2]Follansbee WP, et al. Am Heart J 1993. 125: 194-203.Acknowledgments:Authors would like to thank the patients’ association GILS (Gruppo Italiano Lotta Sclerodermia) for the grant that supported the project.Disclosure of Interests:Maria Grazia Lazzaroni: None declared, Stefania Zingarelli: None declared, Paolo Airò: None declared, Yannick Allanore Grant/research support from: BMS, Inventiva, Roche, Sanofi, Consultant of: Actelion, Bayer AG, BMS, BI, Oliver Distler Grant/research support from: Grants/Research support from Actelion, Bayer, Boehringer Ingelheim, Competitive Drug Development International Ltd. and Mitsubishi Tanabe; he also holds the issued Patent on mir-29 for the treatment of systemic sclerosis (US8247389, EP2331143)., Consultant of: Consultancy fees from Actelion, Acceleron Pharma, AnaMar, Bayer, Baecon Discovery, Blade Therapeutics, Boehringer, CSL Behring, Catenion, ChemomAb, Curzion Pharmaceuticals, Ergonex, Galapagos NV, GSK, Glenmark Pharmaceuticals, Inventiva, Italfarmaco, iQvia, medac, Medscape, Mitsubishi Tanabe Pharma, MSD, Roche, Sanofi and UCB, Speakers bureau: Speaker fees from Actelion, Bayer, Boehringer Ingelheim, Medscape, Pfizer and Roche

Social Facilitation of Exploratory Behavior in Rats: Effects of Increased Exposure to Novel Stimuli

1966 ◽  
Vol 18 (2) ◽  
pp. 587-590 ◽  
Author(s):  
Edward C. Simmel ◽  
D. Phillip McGee
Keyword(s):  
Exploratory Behavior ◽  
Social Facilitation ◽  
Albino Rats ◽  
Group A ◽  
Group B

In a replication of an earlier study, with minor modifications of apparatus and an increase of trial durations from 4 to 6 min., 6 male albino rats (Group A) who had previously explored a novel stimulus were run with 6 rats who had not. When compared with 6 rats (Group B) who had explored the stimulus and were then run with 6 Ss who had equivalent experience, Group A Ss showed significantly more exploratory responses than Group B Ss ( p = > .001). Group A Ss made 103 exploratory responses within 5 sec. of Ss with which they were paired, while Group B Ss made none. These results were in the same direction as those reported in the previous study, but the differences were much greater.

Decrement of the Purkinje Cells Diameter after Oral Intake of Lithium in Albino Rats

2021 ◽  
Vol 15 (8) ◽  
pp. 1788-1789
Author(s):  
Tazeen Kohari ◽  
Farah Malik ◽  
Aftab Ahmad
Keyword(s):  
Purkinje Cell ◽  
Purkinje Cells ◽  
Gray Matter ◽  
Oral Intake ◽  
Lithium Carbonate ◽  
Albino Rats ◽  
Cell Diameter ◽  
Group A ◽  
Cerebellar Gray Matter ◽  
Group B

Background: The histology of Cerebellar gray matter consists of a middle Purkinje cells layer with flask shaped Purkinje cells. The field of Neurology has documented that different organic compounds and metals are lethal to the excitatory Purkinje Neurons. Researches have proved Lithium to be hazardous to nervous tissue and especially Cerebellum For the past sixty years Lithium is the favorable drug for treatment of Bipolar Disorder. Aim: To Analyse and record the changes of decrement of the size of Purkinje cell Diameter after chronic Lithium ingestion. Methods: Sixteen albino rats were selected and were treated with lithium for a period of fifteen days and the data for changes in Purkinje cells Diameter was observed. Results: The Observations of Our study showed highly significantly decreased diameter of the Purinje cells in Group B (Lithium Carbonate) animals as compared to Group A Animals which were on Lab Diet Conclusion: The Morphometric Data proved that Lithium Carbonate is Toxic to Purkinje cells, and it educated our Population to use Lithium with caution. Keywords: Purkinje cell Diameter, Gray matter, Hazardous

To Study the Deteriorating Effects of Lithium Carbonate on Thyroid Gland - A Study in Albino Rats

2021 ◽  
Vol 15 (12) ◽  
pp. 3292-3293
Author(s):  
Tazeen Kohari ◽  
Zaffar Iqbal Malik ◽  
Aftab Ahmad ◽  
Rana M. Asad Khan
Keyword(s):  
Thyroid Gland ◽  
Harmful Effect ◽  
Lithium Carbonate ◽  
Diet Group ◽  
Human Thyroid ◽  
Control Group ◽  
Albino Rats ◽  
Weight Changes ◽  
Group A ◽  
Group B

Background: The human thyroid gland is located in the front of neck. It consists of two lobes. The two lobes are joined with each other by isthmus. The mood stabilizer Lithium Caronate has deleterious effects on the thyroid gland. Aim: To observe and report the data of the harmful effect of Lithium on the weight changes of thyroid gland. Methods: Sixteen rats were selected for this experimental study. The rodents were divided into two groups. Group A comprised of eight animals which were given laboratory diet, Group B contained eight albinos who were given Tablet Lithium Carbonate in powder form at a dose of 60 mg/day for four weeks. After completion of the study time animals were sacrificed and thyroid gland weight were recorded and compared in both groups. Results: The results in both groups were recorded and compared .It was reported that Group B animals had a highly significantly decreased thyroid weight after four weeks Lithium ingestion than Group A control group. Conclusion: The results of our study concluded that Lithium Carbonate damages thyroid glandular tissue and causes its weight to decline. Key words: Thyroid gland, Isthmus, deteriorating

scholarly journals Necrotizing fasciitis with group A Streptococci and Eggerthella lenta as a complication of Varicella in a child – case presentation –

2014 ◽  
Vol 20 (1) ◽  
pp. 35-39
Author(s):  
Cambrea Simona Claudia ◽  
Ilie Maria Margareta ◽  
Carp Dalia Sorina ◽  
Ionescu C.
Keyword(s):  
Necrotizing Fasciitis ◽  
Severe Disease ◽  
The Body ◽  
Group A Streptococci ◽  
Threatening Condition ◽  
Life Threatening ◽  
Group A ◽  
The Right ◽  
Surgery Department ◽  
Short Time

ABSTRACT Necrotizing fasciitis is a life threatening condition that can be quickly spread through the flesh surrounding the muscle. The disease can be polymicrobial, or caused by group A beta hemolytic Streptococci, or by Clostridium spp. We present a case of a 7 years old girl, which was hospitalized in Children Infectious Diseases Department in a 7th day of chickenpox (hematic crusts all over the body), high fever, asthenia, vomiting, oligoanuria, and tumefaction, pain and functio lessa in the right thigh. In a very short time in the right thigh swelling, edema and congestion have increased gradually, and in the third highest middle thigh the ecchymotic areas appeared evolving towards bubbles and blisters which included the right thigh and calf. After excluding the diagnosis of thrombophlebitis was raised suspicion of necrotizing fasciitis. CT pelvic scan evidenced pelvic asymmetry by maximus and medium right gluteal muscles swelling with important inflammatory infiltrate extended laterally in the subcutaneous adipose tissue. In blood culture was isolated Eggerthella lenta, and from throat swab was isolated group A Streptococci. Treatment consists of a combination of antibiotics associated with intravenous immunoglobulin administration. Despite medical treatment evolution worsened and required transfer in a pediatric surgery department where emergent surgical debridement associated with intensive antibiotic therapy was done. After this intervention evolution was slowly favorable without major limb dysfunction. Polymicrobial necrotizing fasciitis is a severe disease, which if recognized early can have a favorable outcome.

scholarly journals Elevation of plasma fibrinogen in silent myocardial ischaemia.

1999 ◽  
Vol 46 (4) ◽  
pp. 985-989
Author(s):  
A Grzywacz ◽  
P Psuja ◽  
M Zozulińska ◽  
W Elikowski ◽  
K Zawilska
Keyword(s):  
Myocardial Ischaemia ◽  
Severe Disease ◽  
Stable Condition ◽  
Plasma Fibrinogen ◽  
Fibrinogen Concentration ◽  
Activity Levels ◽  
Silent Myocardial Ischaemia ◽  
Group A ◽  
Group B ◽  
Pai 1

High plasma levels of fibrinogen and plasminogen activator inhibitor (PAI-1) are reported to be correlated with coronary heart disease. Therefore the level of fibrinogen concentration in plasma was examined and verified for the possible correlation with the previously explored PAI-1 antigen and PAI-1 activity in the pathogenesis of premature atherosclerosis (Grzywacz et al., 1998, Blood Coagul Fibrinol. 9, 245-249). Examination included only men, aged 33-46 years, who were in a stable condition for at least six months after the acute event. They were divided into two subgroups: group A (n = 14) with and group B (n = 15) without ischaemic changes in 24 h Holter electrocardiogram. The number of involved vessels visible on the coronarography picture was similar in both groups. In the patients of group A the mean level of fibrinogen (3.92 vs 3.23 g/l, P < 0.05) was higher than in the controls (n = 15). No statistically differences were found between group B and control healthy subjects in any of the parameters measured. There were no correlation between fibrinogen concentration and PAI-1 antigen and activity levels, which were elevated in both groups of patients according to our previous study. Our results indicate that elevated levels of plasma fibrinogen and PAI-1 appeared in the group of patients with more severe disease, as revealed by silent myocardial ischaemia.

Sign in / Sign up

Export Citation Format

Share Document