scholarly journals Plasma as an indicator of bone fluoride levels in rats chronically exposed to fluoride

2006 ◽  
Vol 14 (4) ◽  
pp. 238-241 ◽  
Author(s):  
Juliane Guimarães de Carvalho ◽  
Rodrigo Cardoso de Oliveira ◽  
Marília Afonso Rabelo Buzalaf
Keyword(s):  
Wistar Rats ◽  
Direct Method ◽  
Facilitated Diffusion ◽  
Bone Surface ◽  
Male Wistar Rats ◽  
Group 3 ◽  
The Difference ◽  
Group 2 ◽  
Exposure Methods ◽  
Group 1

OBJECTIVE: This study evaluated the use of plasma, bone surface (periosteal) and whole bone as biomarkers of chronic fluoride (F) exposure. METHODS: Forty male Wistar rats were assigned to 4 groups (n=10/gr) that differed according to the F concentration they received in the drinking water. Groups 1, 2, 3 and 4 received water containing 0 (control), 5, 15, and 50 mg F/L, respectively. The rats were killed at 120 days of age. Plasma and femur were collected and analyzed for fluoride with the ion specific electrode by the direct method or after hexamethyldisiloxane-facilitated diffusion. Data were tested for statistically significant differences by ANOVA and linear regression (p<0.05). RESULTS: Mean (± SE) plasma F concentrations ranged from 0.030 ± 0.002 to 0.187 ± 0.013 (mg/mL). The concentrations in surface and whole bone ranged from 610 ± 32 to 4,693 222; and 647 ± 22 to 3,439 ± 134 µg/g, respectively. The surface/whole F concentration ratios were 0.941, 1.414, 1.173 and 1.377, for groups 1, 2, 3 and 4 respectively. For plasma and whole bone, the difference among all groups was statistically significant, except for group 2 compared to group 1. For bone surface, all groups differed from each other except for group 2 compared to group 3. A significant positive correlation was found between bone surface and whole bone F (r²=0.94), as well as between plasma and bone surface (r²=0.71) and plasma and whole bone (r²=0.74). CONCLUSIONS: Data suggest that both bone surface and whole bone are suitable biomarkers of chronic F exposure in rats and plasma may be used as indicator of bone fluoride levels.

scholarly journals Pharmacokinetic Interactions between Concomitantly Administered Phenytoin with Rivaroxaban

2018 ◽  
Vol 10 (05) ◽  
Author(s):  
Y. Karnakar Reddy ◽  
T. Ramamohan Reddy
Keyword(s):  
Wistar Rats ◽  
Elimination Rate ◽  
Pharmacokinetic Parameters ◽  
Pharmacokinetic Interactions ◽  
Significant Difference ◽  
Cyp3a4 Inducer ◽  
Male Wistar Rats ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

In the present investigation it was aimed to evaluate any possible pharmacokinetic interactions between Phenytoin and Rivaroxaban. Study was conducted in Male Wistar rats; animals were divided into three groups. Group 1 received Phenytoin alone, Group 2 received Rivaroxaban alone and Group 3 received Phenytoin and Rivaroxaban concomitantly. The treatment was given for 8 days and the blood samples were collected on day 1 and day 8. The samples were analyzed by HPLC. The results were showed no significant difference in the Pharmacokinetic parameters of Phenytoin in presence of Rivaroxaban. Whereas Rivaroxaban showed significant decrease in both Cmax and tmax in combination with Phenytoin. Phenytoin is a combined-gp inducer and strong CYP3A4 inducer therefore it may induce the metabolism of Rivaroxaban so it reduces the concentrations and increase the elimination rate. Based on the results obtained from pharmacokinetic study it was evident that the single dose of Rivaroxaban in combination with Phenytoin shows statistically significant interactions in its pharmacokinetic parameters.

scholarly journals Erectogenic Effect of Thyme (Thymus vulgaris) Extract in Normal and 5-Fluorouracil induced Oxidative Stressed Adult Male Wistar Rats

2021 ◽  
pp. 22-34
Author(s):  
O. Abimbola Akintemi ◽  
R. O. Babalola ◽  
S. O. Babatunde
Keyword(s):  
Vitamin C ◽  
Oral Administration ◽  
Thymus Vulgaris ◽  
Male Wistar Rats ◽  
Group 3 ◽  
Group 5 ◽  
Group 2 ◽  
Phosphodiesterase 5 ◽  
Thiol Level ◽  
Group 1

This study determined the effect of oral administration of aqueous extract from Thyme (Thymus vulgaris) extract (TVE) on the antioxidant status and activity of some penile function enzymes (acetylcholinesterase (AChE), phosphodiesterase-5 (PDE-5), adenosine diaminase (ADA), and arginase) activity in normal and 5- Fluorouracil- induced oxidative stressed rats. Sixty adult Wister rats (210-225)g were divided into ten (10) groups (n=6): Group 1: received oral administration  of normal saline (NC), Group 2: received 100 mg/kg of thyme extract orally (TE 100 mg/kg), Group 3: received 200 mg/kg of thyme extract orally (TE 200 mg/kg), rats in group four were treated with 400 mg/kg of thyme extract orally (TE 400 mg/kg), Those in group 5: received 25 mg/kg of Vitamin C orally, while group 6 to 10 were induced with 150 mg/kg of 5-Fluorouracil solution (5-FLU, i.p), but group 7-10 were treated 100 mg/kg, 200 mg/kg, 400 mg/kg and Vitamin C (25mg/kg), respectively. After fourteen (14) days of treatment, the rats were sacrificed and the penile tissue was carefully isolated and prepared into homogenate, which was used for antioxidant and enzymes biochemical analysis. The result revealed that i.p induction of 5-FLU caused a significant increase in malondialdehyde level, as well as AChE, ADA, PDE-5 and arginase activities wth concomitant decrease in thiol level when compared to control rats. However, the administration of TVE was found to reverse the effect of 5-FLU. The TVE was also found the reduced MDA level and all the enzyme activities, but boosted the thiol level in the normal rats when compared to control rats. Interestingly the effect of the TVE was found dose-dependently, and 400 mg/kg TVE was found to be more potent among all the doses used in both normal and 5-FLU-induced oxidative stress rats.

scholarly journals The Effectiveness of Endoscopic Surgery of Juvenile Angiofibroma Using Surgical Glue

2020 ◽  
Vol 8 (B) ◽  
pp. 150-154
Author(s):  
Seyed-Hadyi Samimi Ardesan ◽  
Mojtaba Mohammadi Ardehali ◽  
Najmeh Doustmohammadian
Keyword(s):  
Blood Loss ◽  
Endoscopic Surgery ◽  
Tumor Staging ◽  
Low Cost ◽  
Tumor Stage ◽  
Nasopharyngeal Angiofibroma ◽  
Group 3 ◽  
The Difference ◽  
Group 2 ◽  
Group 1

AIM: The current study aimed to provide a method for juvenile nasopharyngeal angiofibroma embolization using Glubran glue in patients with low stage tumor. This method not only has less blood loss and good visualization but also impose a low cost, where no pre-operative embolization complications were found for this procedure. METHODS: Between 2012 and 2014, 30 patients with angiofibroma undergoing endoscopic surgery. Age, sex, tumor stage, average blood loss, complications, length of hospitalization, and recurrence rate of the tumor were the main measured outcomes. Furthermore, 30 patients were divided into three groups with matched age, sex, and tumor staging. Group 1 received glue (Glubran), while Group 2 selected for study without glue and embolization and pre-operative embolization was considered for Group 3. RESULTS: Based on the amount bleeding, the mean blood hemorrhage in Groups 1, 2, and 3 was 510, 1655, and 800 ml, respectively, the difference of hemorrhage between Groups 1 and 2 was found to be statistically significant (p = 0.007). Blood loss in Group 1 was found to be less than Group 3, but the difference of hemorrhage between Group 1 and 3 was not statistically significant (p = 0.678). No blood transfusion and complication were recorded for individuals in Group 1. The recurrence was found in 1 patient (10%) in both groups of 2 and 3, and no patient (0%) in Group 1. CONCLUSIONS: The direct intraoperative embolization technique with glue was capable of providing a more complete and targeted embolization of the tumor. Some advantages can be mentioned for this technique, including decreased blood loss, less radiation exposure, lower rates of complications, and recurrence, as well as shorter hospitalization time, the ease of procedure with a spinal needle and low cost.

Effect of Irradiation and Gentamycin on the Course of Experimental Peritonitis

1985 ◽  
Vol 1 (S1) ◽  
pp. 186-188
Author(s):  
T. Orlowski ◽  
S. Chabielski ◽  
A. Badowski ◽  
Z. Dumanski
Keyword(s):  
Surgical Treatment ◽  
Ionizing Radiation ◽  
Wistar Rats ◽  
Radiation Sickness ◽  
Simultaneous Action ◽  
Diffuse Peritonitis ◽  
Abdominal Organs ◽  
Male Wistar Rats ◽  
Group 2 ◽  
Group 1

The pathology of mixed injuries resulting from simultaneous action of several damaging factors on the organism is still insufficiently known. Peritonitis is the most frequent complication of injuries to the abdominal organs. Co-existence of peritonitis with radiation sickness impairs considerably the results of therapeutic management and prognosis. Surgical treatment is indicated in the latent period of radiation sickness or only in the period of recovery. In the case of diffuse peritonitis, the time of performing the operation is of essential importance for the prognosis. Thepurposeof the reportedinvestigationswas the study of the effect of ionizing radiation before exposure of the organism on the course of diffuse peritonitis and a trial of prolonging with an antibiotic the preliminary stage of the disease in which surgical treatment is effective. Investigations were carried out on 160 male Wistar rats weighing 250g on the average, divided into five groups. Group 1 served as control. In Group 2, the rats were only exposed to radiation.

scholarly journals Chemoprevention by celecoxib in reflux-induced gastric adenocarcinoma in Wistar rats that underwent gastrojejunostomy

2009 ◽  
Vol 24 (3) ◽  
pp. 189-194 ◽  
Author(s):  
Frederico Theobaldo Ramos Rocha ◽  
Laercio Gomes Lourenço ◽  
Mário Jorge Jucá ◽  
Valéria Costa ◽  
Antenor Teixeira Leal
Keyword(s):  
Gastric Adenocarcinoma ◽  
Wistar Rats ◽  
Exploratory Laparotomy ◽  
Gastric Body ◽  
Gastrojejunal Anastomosis ◽  
Significant Difference ◽  
Male Wistar Rats ◽  
Laparotomy Group ◽  
Group 2 ◽  
Group 1

PURPOSE: To evaluate chemoprevention by celecoxib in cases of reflux-induced gastric adenocarcinoma, in Wistar rats that underwent gastrojejunostomy. METHODS: Sixty male Wistar rats of average age three months underwent surgery and were distributed into three groups: group 1, exploratory laparotomy; group 2, gastrojejunostomy; and group 3, gastrojejunostomy and daily celecoxib administration. After 53 weeks, the animals were sacrificed. Changes in the mucosa of the gastric body of group 1 and in the gastrojejunal anastomosis of groups 2 and 3, observed in histopathological and immunohistochemical examinations, were compared. All statistical analyses were performed using Epi-Info®, version 3.4.3. RESULTS: Comparison between groups 2 and 3 relative to the presence of adenocarcinoma showed a statistically significant difference (p=0.0023). Analysis of the association between groups 2 and 3 relative to COX-2 expression also showed a statistically significant difference (p=0.0018). CONCLUSION: Celecoxib had an inhibiting effect on gastric carcinogenesis induced by enterogastric reflux in an animal model.

scholarly journals Evaluation of the Clinical Efficacy of Using Thermal Camera for Cryotherapy in Patients with Total Knee Arthroplasty: A Prospective Study

Medicina ◽  
2019 ◽  
Vol 55 (10) ◽  
pp. 661 ◽  
Author(s):  
Zekeriya Okan Karaduman ◽  
Ozan Turhal ◽  
Yalçın Turhan ◽  
Zafer Orhan ◽  
Mehmet Arican ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Postoperative Period ◽  
Thermal Camera ◽  
Prosthesis Infection ◽  
Total Knee ◽  
Group 3 ◽  
The Difference ◽  
Group 2 ◽  
Group 1

Background and objectives: Cryotherapy is a method of treatment using cold application. This study aimed to evaluate postoperative clinical and hematological parameters and pain associated with total knee arthroplasty in patients and compared cryotherapy to the conventional method of cold ice pack compressions. Materials and Methods: Between January 2015 and January 2016, 90 patients who underwent total knee arthroplasty for grade 4 gonarthrosis were prospectively evaluated. The patients were divided into three groups (n = 30, each): Group 1, cryotherapy was applied in the pre- and postoperative periods; Group 2, cryotherapy was applied only in the postoperative period; and Group 3 (control group), only a cold pack (gel ice) was applied postoperatively. In all groups, pre- and postoperative evaluations at 6, 24, and 48 h, hemorrhage follow-up, knee circumference measurement, visual analog scale pain score, knee circumference, and temperature measured by thermal camera were recorded. Results: Of the 90 patients, 10% were men and 90% were women. The mean age was 64.3 ± 8.1 (range: 46–83) years. The patella upper end diameter values were significantly lower in the postoperative period in Groups 1 and 2 than in Group 3 (p = 0.003). Hemoglobin levels at 24 and 48 h postoperatively were significantly lower in Group 3 than in Group 1 (p < 0.001, each) and Group 2 (p = 0.038, p < 0.001). At 6, 24, and 48 h follow-ups, pain values were significantly lower in Group 2 than in Group 3 (p < 0.001). Preoperative 6, 24, and 48 h temperature values were significantly lower in Group 1 than in Group 3 (p < 0.001 for each). It was found that the difference between preoperative and postoperative knee flexion measurements was significantly different in both groups or the difference between the groups was changed in each period (p < 0.001). Conclusions: Postoperative cryotherapy is a potentially simple, noninvasive option and beneficial for the reduction of reducing pain, bleeding, length of stay, analgesic requirement and swelling after total knee arthroplasty. Moreover, there was no early or late prosthesis infection in cryotherapy groups, which may be considered as an additional measure to prevent prosthesis infection.

An outbreak of oriental theileriosis in dairy cattle imported to Vietnam from Australia

Parasitology ◽  
2016 ◽  
Vol 144 (6) ◽  
pp. 738-746 ◽  
Author(s):  
HAGOS GEBREKIDAN ◽  
LINDA NELSON ◽  
GREG SMITH ◽  
ROBIN B. GASSER ◽  
ABDUL JABBAR
Keyword(s):  
Dairy Cattle ◽  
Phylogenetic Analyses ◽  
Surface Protein ◽  
Theileria Orientalis ◽  
Group 3 ◽  
Cattle Blood ◽  
The Difference ◽  
Group 2 ◽  
Major Piroplasm Surface Protein ◽  
Group 1

SUMMARYThis study reports an outbreak of oriental theileriosis in dairy cattle imported to Vietnam from Australia. Following clinical and pathological diagnoses, a total of 112 cattle blood samples were divided into three groups and tested using multiplexed tandem PCR. Group 1 were from aborted heifers in Vietnam; group 2 were from cattle before shipment from group 1 cattle and group 3 were from the same batch of cattle but transported to Taiwan. Theileria orientalis DNA was detected in 72·3% cattle. The prevalences of T. orientalis in groups 1, 2 and 3 were 77·6, 86·9 and 57·5%, respectively, and the difference in prevalence was significant between groups 1 and 3 (P < 0·0001). The infection intensities of genotypes chitose and ikeda of T. orientalis were higher in groups 1 (57 721 and 33 709, respectively) and 3 (5897 and 61 766, respectively) than those in group 2 (2071 and 6331, respectively). Phylogenetic analyses of the major piroplasm surface protein sequences revealed that genotypes chitose and ikeda determined herein were closely related to those previously reported from Australia. This first report of an outbreak of oriental theileriosis in imported cattle emphasizes improved measures for the export and import of cattle infected with T. orientalis.

scholarly journals Correlation of invitro susceptibility based on MICs and SQLE mutations with clinical response to terbinafine in patients with tinea corporis/cruris

2018 ◽  
Author(s):  
Ananta Khurana ◽  
Aradhana Masih ◽  
Anuradha Chowdhary ◽  
Kabir Sardana ◽  
Sagar Borker ◽  
...  
Keyword(s):  
Clinical Response ◽  
Drug Exposure ◽  
Antifungal Susceptibility ◽  
Tinea Corporis ◽  
Squalene Epoxidase ◽  
Improved Outcomes ◽  
Group 3 ◽  
The Difference ◽  
Group 2 ◽  
Group 1

ABSTRACTRecalcitrant dermatophytoses are on the rise and recent publications have documented high minimum inhibitory concentrations (MICs) to TRB and squalene epoxidase (SQLE) mutations. However, literature correlating the laboratory the data with clinical response is lacking.This study was conducted to study the clinico-mycological profile of tinea corporis and cruris, including antifungal susceptibility testing (AFST) and SQLE mutation analysis and correlate these with clinical response to TRB. Skin scrapings of patients with tinea corporis with/without tinea cruris were subjected to species identification, AFST and SQLE gene analysis (on 15 isolates). KOH confirmed cases were started on TRB 250mg once a day (OD). If >50% clinical clearance was achieved by 3 weeks; the same dose was continued.(Group 1). If clinical clearance at 3 weeks was <50%, the dose was increased to 250mg twice a day (BD) (Group 2). If the response still remained below 50% after 3 weeks of BD, the patients were treated with itraconazole (ITR)(Group 3). Trichophyton interdigitale was confirmed on all 64 isolates obtained on culture. Forty four (68.7%) isolates had high (≥1 μg/ml) MICs to TRB. Six isolates were found to have aminoacid substitution Leu393Phe in SQLE protein, while one had the substitution Phe397Leu. The difference in modal MICs to TRB between the 3 clinical response groups (1.5157μg/ml, 5.0396 μg/ml and 20.1587μg/ml respectively for group 1,2 and 3) was highly significant. Clinical response was achieved in 68% of those resistant by MIC data, and 42.8% of SQLE mutation harboring isolates, by increasing drug (TRB) exposure.We infer that TRB resistance in dermatophytes has reached alarming proportions in our patients. Though improved outcomes were achieved with higher drug exposure, with the high failure rate seen in the study, the case for shifting to another class of antifungals as first line agent against dermatophytoses is strong.

scholarly journals Effect of ovarian autotransplantation on FSH levels in Wistar rats late menopause model

2018 ◽  
Vol 26 (1) ◽  
pp. 42
Author(s):  
Abdurahman Laqif ◽  
Dewi Kartika DJ Anwar ◽  
Eriana Melinawati
Keyword(s):  
Data Analysis ◽  
Wistar Rats ◽  
Control Group ◽  
Bilateral Oophorectomy ◽  
Group 3 ◽  
The Mean ◽  
Group 2 ◽  
Post Hoc ◽  
Group 1 ◽  
Elisa Data

Objectives: To determine the effect of ovarian autotransplan-tation on decreasing FSH level in Wistarrats late menopause model.Materials and Methods: Experimental analytic research on 27 Wistar rats (Rattus novergicus) was divided into 3 groups. Group 1 (K1) or control. Group 2 (K2) performed bilateral oophorec-tomy without autotransplantation. Group 3 (K3) performed bilateral oophorectomy with autotransplantation. Measurements of FSH levels were performed on the first day, day 28 (four weeks after bilateral oophorectomy, during late menopause) and 56 day (four weeks after autotransplant). Measurement of FSH levels using ELISA. Data analysis used ANOVA and Post Hoc test.Results: The mean FSH level measured on day 56 at K1 = 63.400 ng/mL, at K2 = 78.416 ng/mL and K3 = 31.991 ng/mL. There were significant differences between K1 and K2 (p = 0,000), K1 and K3 (p = 0,000), and between K2 and K3 (p = 0,000).Conclusion: Ovarian autotransplantation decrease FSH levels in Wistar rats late menopause model.

scholarly journals Parasitemia of Male White Mice (Mus musculus L.) DDY Strain Infected with Trypanosoma evansi Pidie and Pemalang Isolate

2014 ◽  
Vol 10 (2) ◽  
Author(s):  
Febiola Rama Sari ◽  
Yudha Fahrimal ◽  
Ummu Balqis ◽  
Didik T Subekti ◽  
Aprilia Wardana
Keyword(s):  
Treatment Group ◽  
Trypanosoma Evansi ◽  
Rapid Rise ◽  
Treatment Groups ◽  
Parasitemia Level ◽  
Group 3 ◽  
The Difference ◽  
Group 2 ◽  
Short Time ◽  
Group 1

This study aimed to find out the parasitemia of DDY white mice infected with T. evansi of Pidie and Pemalang isolates obtained from Bbalitvet Bogor. A total of 12 mice were divided into 3 treatment groups. Group 1 (K1) without any treatment, group 2 (K2) was inoculated with 104 T. evansi Pidie isolate, and group 3 (K3) was inoculated with 104 T. evansi Pemalang isolate. Parasitemia examination was carried out every two days and the level of parasitemia was observed as well. Parasitemia examination was conducted until all mice died. Parasitemia of mice infected with Pidie isolate was characterized by rapid rise of parasitemia in blood (107-108/mL of blood) in a short time (2-4 days) since first parasitemia was detected and followed by death at day 4. The parasitemia of mice infected with Pemalang isolate increased in the blood (108-109/mL of blood) on day 4 and maintained for a few more days and then fluctuated for a few more days before the animal was dead. In conclusion, there was the difference in parasitemia level between Pidie and Pemalang isolates. Key words: Trypanosoma evansi, parasitemia, Pidie isolate, Pemalang isolate

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