scholarly journals Examination of Haematotoxicity of Fixed-Dose Highly Active Antiretroviral Drug in Albino Wistar Rats

2012 ◽  
Vol 2012 ◽  
pp. 1-6
Author(s):  
Thomas Nubila ◽  
Ernest O. Ukaejiofo ◽  
Nkoyo I. Nubila ◽  
Godfrey I. Okorie
Keyword(s):  
Highly Active Antiretroviral Therapy ◽  
Wistar Rats ◽  
Venous Blood ◽  
Haemoglobin Concentration ◽  
Test Group ◽  
Mean Value ◽  
Fixed Dose ◽  
Control Group ◽  
Highly Active ◽  
Significant Difference

Highly active antiretroviral therapy (HAART) is considered toxic and has other life-threatening side effects. Our aim was to evaluate the haematotoxic effects of lamivudine, zidovudine, and nevirapine fixed-dose combinations in Albino Wistar rats. Fifty (50) three (3) months old male Albino Wistar rats weighing between 200 and 250 g were randomly assigned to five (5) groups (A, B, C, D, and E). Group A served as control. Two (2 mLs) of venous blood was aseptically collected on Days 5, 10, 15, 20, and 25 of treatment. Red blood cell (RBC) mean value recorded statistically significant increase () in groups B and C when compared with the control group on Day 5. However, there was a statistically significant decrease () in RBC, haemoglobin concentration (Hb), packed cell volume (PCV), and some red cell indices on Day 10. In addition there was no statistically significant difference () in all the parameters evaluated when the test group was compared with the control on Day 25. Furthermore, there was a time-related statistically significant increase () in the two major blood cells—RBC and platelet counts. From the result of this present study, it can be concluded that HAART when administered in fixed-dose combinations have no subacute haematotoxic effects.

scholarly journals Assessment of the Tissue Response to Modification of the Surface of Dental Implants with Carboxyethylphosphonic Acid and Basic Fibroblastic Growth Factor Immobilization (Fgf-2): An Experimental Study on Minipigs

Biology ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 358
Author(s):  
Javier Aragoneses ◽  
Ana Suárez ◽  
Nansi López-Valverde ◽  
Francisco Martínez-Martínez ◽  
Juan Manuel Aragoneses
Keyword(s):  
Surface Treatment ◽  
Test Group ◽  
Mean Value ◽  
Control Group ◽  
P Value ◽  
Implant Surface ◽  
Bone Contact ◽  
Bone Implant ◽  
Significant Difference ◽  
The Mean

The aim of this study was to evaluate the effect of implant surface treatment with carboxyethylphosphonic acid and fibroblast growth factor 2 on the bone–implant interface during the osseointegration period in vivo using an animal model. The present research was carried out in six minipigs, in whose left tibia implants were inserted as follows: eight implants with a standard surface treatment, for the control group, and eight implants with a surface treatment of carboxyethylphosphonic acid and immobilization of FGF-2, for the test group. At 4 weeks after the insertion of the implants, the animals were sacrificed for the histomorphometric analysis of the samples. The means of the results for the implant–bone contact variable (BIC) were 46.39 ± 17.49% for the test group and 34.00 ± 9.92% for the control group; the difference was not statistically significant. For the corrected implant–bone contact variable (BICc), the mean value of the test group was 60.48 ± 18.11%, and that for the control group, 43.08 ± 10.77%; the difference was statistically significant (p-value = 0.035). The new bone formation (BV/TV) showed average results of 27.28 ± 3.88% for the test group and 26.63 ± 7.90% for the control group, meaning that the differences were not statistically significant (p-value = 0.839). Regarding the bone density at the interthread level (BAI/TA), the mean value of the test group was 32.27 ± 6.70%, and that of the control group was 32.91 ± 7.76%, with a p-value of 0.863, while for the peri-implant density (BAP/TA), the mean value of the test group was 44.96 ± 7.55%, and that for the control group was 44.80 ± 8.68%, without a significant difference between the groups. The current research only found a significant difference for the bone–implant contact at the cortical level; therefore, it could be considered that FGF-2 acts on the mineralization of bone tissue. The application of carboxyethylphosphonic acid on the surface of implants can be considered a promising alternative as a biomimetic coating for the immobilization of FGF-2. Despite no differences in the new bone formation around the implants or in the interthread or peri-implant bone density being detected, the biofunctionalization of the implant surface with FGF-2 accelerates the mineralization of the bone–implant interface at the cortical level, thereby reducing the osseointegration period.

scholarly journals Milled versus moulded mock-ups based on the superimposition of 3D meshes from digital oral impressions: a comparative in vitro study in the aesthetic area

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Francesca Cattoni ◽  
Giulia Teté ◽  
Alessandro Mauro Calloni ◽  
Fabio Manazza ◽  
Giorgio Gastaldi ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Test Group ◽  
In Vitro Study ◽  
Mean Value ◽  
Digital Impression ◽  
Control Group ◽  
Minimal Invasiveness ◽  
Significant Difference ◽  
The Aesthetic

Abstract Background Aesthetic porcelain veneers proved to be a long-term reliable prosthetic solution, ensuring minimal invasiveness. The use of veneers requires an adhesive cementation technique, so maintaining as much enamel as possible is to ensure lasting success. A diagnostic mock-up is a key tool that allows a preview of the outcome of the aesthetic restoration: it is obtainable both in an analog and digital way. With the recent developments in impression technology and the ever so fast growing use of CAD-CAM technologies it is useful to understand the pros and cons of either one of these techniques (analog and digital) in order to identify the easier and more convenient workflow in aesthetic dentistry. Methods After taking pictures and impressions of the dental arcs of a patient in need of aesthetic rehabilitation, 52 resin models were produced and a digital drawing of the smile was outlined. Both an analog and a digital wax-up were obtained from two of the 52 models: the latter was obtained using digital impressions and a dedicated software. The analog wax-up was then used to produce 25 matrices that have later been used to mould 25 resin mock-ups using a traditional moulding protocol (Control Group - CG). The digital wax-up was used to mill 25 PMMA mock-ups. Each mock-up, both milled and moulded (total 50), was then laid on the other 50 resin models as a digital impression of it was taken. The STL. files of the milled mock-ups were compared with the 3D CAD wax-up made using a specific software. The STL. files of the analog printed mock-ups were compared with the traditional wax-up design. A statistical analysis was carried out to evaluate the difference between the groups. Results The statistical analysis showed a significant difference (P > 0.01) between the mean value of the distance between the points of the overlapping STL. meshes in GC (0.0468 mm) and in TG (Test Group - TG) (0,0109 mm). Conclusions The study showed a difference in accuracy between traditional moulded and milled mock-ups compared to their original wax-up. The data analysis reports that the digital method allows for greater accuracy. Within the limitations of this study, a fully digital workflow is to considered more reliable when it come to creating an esthetic mockup: the digital procedure has been shown to be more accurate than the one made manually which is much more operator dependent and it brings an increase to the chance of error, and that could ultimately affect the final result.

scholarly journals Sex Hormones Levels in Male Welders in Nnewi, South-Eastern Nigeria

2020 ◽  
pp. 22-32
Author(s):  
C. H. Udeogu ◽  
I. S. I. Ogbu ◽  
A. N. Mbachu ◽  
M. C. Ugwu ◽  
O. F. Odo ◽  
...  
Keyword(s):  
Sex Hormones ◽  
Venous Blood ◽  
Test Group ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Welding Fumes ◽  
Welding Fume ◽  
Cross Sectional ◽  
Significant Difference ◽  
Welding Processes

Welding processes produce toxic fumes consisting of gaseous and aerosol by-products which pose a risk to the male reproductive systems. The rate of infertility has increased globally. This study therefore sought to assess the effects of welding fume inhalation on the sex hormones of welders in Nnewi. A site-by-site cross-sectional study of 45 welders (aged between 18 and 50 years) who were exposed to welding fumes (Test group) and 45 age-matched non-welders (Control group) was carried out. The ages of the Test and Control subjects, as well as the years of exposure of the Test subjects were obtained via questionnaire. A single non-fasting venous blood (about 5 mls) was collected from the ante-cubital space from the subjects via venipuncture between 8:00 AM and 11:00 AM. Serum was separated following clotting, and used for the investigation of the levels of male sex hormones: Testosterone (T), Progesterone (P), Luteinizing Hormone (LH) and Follicle Stimulating Hormone (FSH) among welders. Sex hormones were assayed by Enzyme Linked Immunosorbent Assay. The results showed that Testosterone (2.45±0.34 ng/ml) was significantly lower (p<0.05) in welders when compared to controls (4.94±0.81 ng/ml) and significantly increased (p<0.05) levels of Progesterone (0.54±0.09 ng/ml) and LH (7.47±1.56 mIU/L) were found in welders compared with controls Progesterone (0.45±0.08 ng/ml) and LH (5.53±1.05 mIU/L). There was no significant difference in the levels of FSH of the test when compared with the controls. This finding of altered hormone levels indicates a likelihood of reduced reproductive outcome. Exposure to welding fume may therefore interfere with testicular functions leading to disordered reproductive performance, delayed conception, and reduced fertility.

scholarly journals Neurocognitive and Neuroarchitectural Changes in the Prefrontal Cortex of Wistar Rats Treated with Highly Active Antiretroviral Therapy

2021 ◽  
Vol 12 (2) ◽  
pp. 67-75
Author(s):  
Olufunke Dosumu ◽  
◽  
Edidiong Akang ◽  
Edem Edem ◽  
Samuel Afolayan ◽  
...  
Keyword(s):  
Prefrontal Cortex ◽  
Antiretroviral Therapy ◽  
Highly Active Antiretroviral Therapy ◽  
Wistar Rats ◽  
Pyramidal Cells ◽  
Control Group ◽  
Highly Active ◽  
Y Maze ◽  
Male Wistar Rats ◽  
The Right

The use of highly active antiretroviral therapy has proven to be highly effective in the treatment of human immunodeficiency virus 1 (HIV-1) infection. However, its impact on cognition has not been fully explored. This study was designed to assess the impacts of antiretroviral therapy on cognitive function and histoarchitecture of the prefrontal cortex of Wistar rats. Forty adult male Wistar rats weighing 180-200 g were randomly assigned to 4 groups: control, tenofovir, lamivudine and efavirenz (n=10), which received 1 ml distilled water and 6 mg/kg, 6 mg/kg and 12 mg/kg, respectively. Spatial memory scores were assessed using the Y-maze test. Following behavioural studies, the animals were euthanized, and their whole brains harvested. The prefrontal cortex was sectioned and processed for oxidative stress, histological and immunohistochemical analyses. There was a significant decrease in percentage alternation evaluated from the right/wrong decisions scored from the tenofovir and lamivudine groups, compared to the control group (p<0.05). malondialdehyde (MDA) and reduced glutathione (GSH) levels were elevated following lamivudine and tenofovir exposure in the rats’ prefrontal cortices, respectively, compared to control (p<0.05). There were also significant alterations of cortical pyramidal cells in the tenofovir and lamivudine groups. Additionally, marked astrogliosis with increased glial fibrillary acidic protein expression was observed, consistent with the structural alterations, especially in the lamivudine group. Our findings suggest that, of the three highly active antiretroviral therapy (HAART) drugs studied, lamivudine may be a major culprit in the progressive neurological damage and cognitive impairment in HIV-infected individuals on HAART.

scholarly journals BMP2 expression on periodontal of wistar rats with stz - induced diabetes mellitus after giving diet extract fish oil

2020 ◽  
Vol 5 (2) ◽  
pp. 76-80
Author(s):  
Hansen Kurniawan ◽  
◽  
Dian Damaiyanti ◽  
Keyword(s):  
Diabetes Mellitus ◽  
Fish Oil ◽  
Wistar Rats ◽  
Economic Value ◽  
Test Group ◽  
Control Group ◽  
Periodontal Tissue ◽  
Omega 3 ◽  
Significant Difference ◽  
Oil Extract

Background : Diabetes mellitus (DM) is one of the most common metabolic disorders of high blood sugar levels. Lemuru fish is a resource of pelagic fish that has important economic value. Lemuru fish oil in addition to Omega-3 fatty acids that have been known as anti-inflammatory agent. Objective: To determine the effect of dietary extract of lemuru fish oil on BMP2 levels on periodontal tissue of Wistar rats induced with diabetes mellitus. Materials and Methods: The experiments were conducted with the Post Test Group design. Thirty male Wistar Rats were divided into four groups. Control group, Wistar induced STZ, but not treated. The first group of Wistar induced STZ and given lemuru fish oil extract 4ml / KgBB. The second group, Wistar induced STZ and given lemuru fish oil extract 8ml / KgBB and third group, Wistar induced STZ and given lemuru fish oil extract 16ml / KgBB. Wistar sacrificed. Then examined BMP2 with immunohistochemical methods. All data experiments were analyzed with Mann whitney (p <0.05). Results: The results of this study showed that the control group compared to third group , it was found that in the control group and third group had significant differences. While in second group compared to third group, it was found that in second group and third group did not have significant differences. In first group compared with third group , it was found that in first groups and third group had significant differences. Similarly in second group compared with third group it was found that in second group and third group it was significant difference. From the statistical test it can be seen that in second group compared to third group there was no difference of effect. Conclusion: There was an effect of dietary extract of lemuru fish oil on BMP2 on periodontal tissue of Wistar rats induced by diabetes mellitus.

scholarly journals The Sub – Acute Effects of Raw Honey on Prothrombin Time, Activated Partial Thromboplastin Time and Platelet Values in Albino Wistar Rats

2020 ◽  
pp. 68-73
Author(s):  
Akudo Chidinma Ohale ◽  
Emmanuel Ifeanyi Obeagu ◽  
Happiness Alaribe Mark ◽  
Chidindu C. Mmadu- Okoli ◽  
Chukwuebuka Brian Ugo- Ezepue ◽  
...  
Keyword(s):  
Prothrombin Time ◽  
Partial Thromboplastin Time ◽  
Wistar Rats ◽  
Venous Blood ◽  
Activated Partial Thromboplastin Time ◽  
Control Group ◽  
Statistical Significant Difference ◽  
Significant Difference ◽  
Value Determination ◽  
Raw Honey

For centuries honey has been regarded as wonderful gift of nature in which the properties of an excellent food, beneficial alike to adults and children, are combined with medicinal properties. Surprisingly, its sub-acute effect on coagulation is unknown. Hence; this present study aims at evaluating the effects of raw honey on coagulation in albino wistar rats. Thirty (30), 3-4 months old albino wistar rats both males and females were used for the study. The experimental animals were divided into five (A, B, C, D, E) groups with six rats per group. The test groups (B-E) were gavaged with graded doses (625, 1250, 2500, 5000 mg/kg body weight) respectively of the raw honey once daily for nine days. Group A served as control. Two (2) animals were bled from each group after 3, 6 and 9 days through the ocular plexus. Four (4) ml of venous blood was collected. Two (2) ml was delivered into 0.25ml trisodium citrate anticoagulant bottle for determination of Prothrombin Time (PT) and Activated Partial Thromboplastin Time (APTT). The remaining two (2) ml was delivered into K3EDTA anticoagulant bottle for platelet value determination. There was no statistical significant difference (P > 0.05) recorded in all the parameters investigated among the test groups when compared with the control group on Day 3. However, group B revealed a statistical significant decrease (P < 0.05) in PT when compared with the control group on Day 6. In addition, no statistical significant difference (P>0.05) was recorded on Day 9 when all the parameters investigated among the test groups were compared with the control group. Furthermore, there was no exposure related statistical significant difference (P>0.05) in the test groups in PT and APTT in the ANOVA.  However, there was a time related significant difference (P<0.05) in platelet value of group C when Days 3, 6 and 9 were compared. It can be concluded that raw honey possesses a sub-acute coagulation stimulatory potentials which is likely to be dose and duration related.

Effects of Virgin Coconut Oil as Adjunct Therapy in the Treatment of Allergic Rhinitis

2016 ◽  
Vol 1 (1) ◽  
pp. 22
Author(s):  
Nazli Zainuddin ◽  
Nurul Azira Mohd Shah ◽  
Rosdan Salim
Keyword(s):  
Allergic Rhinitis ◽  
Side Effects ◽  
Coconut Oil ◽  
Test Group ◽  
Nasal Symptom ◽  
Control Group ◽  
Virgin Coconut Oil ◽  
Control Groups ◽  
Significant Difference ◽  
And Control

Introduction: The role of virgin coconut oil in the treatment of allergic rhinitis is controversial. Thus, the aim of the present study is to determine the effects of virgin coconut oil ingestion, in addition to standard medications, on allergic rhinitis. We also studied the side effects of consumption of virgin coconut oil. Methods: Fifty two subjects were equally divided into test and control groups. All subjects received a daily dose of 10mg of loratadine for 28 days. The test group was given 10ml of virgin coconut oil three times a day in addition to loratadine. The symptoms of allergic rhinitis were scored at the beginning and end of the study. Results:, the symptom score were divided into nasal and non-nasal symptom scores. Sneezing score showed a significant difference, however the score was more in control group than test group, indicating that improvement in symptom was more in control group. The rest of the nasal symptom and non-nasal symptom score showed no significant difference between test and control groups. Approximately 58% of the test subjects developed side effects from consumption of virgin coconut oil, mainly gastrointestinal side effects. Conclusion: In the present study, ingestion of virgin coconut oil does not improve the overall and individual symptoms of allergic rhinitis, furthermore it has side effects.

Pengaruh Profilaksis Ekstrak Ubi Jalar Ungu (Ipomoea batatas L.) terhadap Kadar Malondialdehida Hepar Tikus Putih (Rattus norvegicus) Jantan Galur Wistar yang Diinduksi Karagenan

2018 ◽  
Vol 15 (2) ◽  
pp. 146
Author(s):  
BRILIAN DINANTI ◽  
FITRI HANDAJANI
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Wistar Rats ◽  
Group Method ◽  
Control Group ◽  
Intraplantar Injection ◽  
Significant Difference ◽  
Male Wistar Rats ◽  
Potato Extract ◽  
Purple Sweet Potato

<p>Liver is an organ with complex metabolism. When the liver is inflamed, cellular immunity will defend against inflammatory agents by stimulating immune cells to produce reactive oxygen species (ROS). Excessive ROS accumulation cause oxydative stress with increased  liver malondialdehyde (MDA) level. Some researches showed that purple sweet potato contain flavonoids (anthocyanins) that functioned as antioxydants. This study aimed to show the prophylactic effect of purple sweet potato extract to the liver MDA level of male Wistar rats induced by carrageenan.</p><p>This study used post-only control group method using 18 male Wistar rats divided into 3 groups: group of rats without treatment, group of rats induced by 0,1 ml of 1% carrageenan by intraplantar injection on day-8, and group of rats given with 872 mg/kgBW of purple sweet potato extract for 7 days and induced by 0,1 ml of 1% carrageenan. In the end of the study, the liver MDA levels were measured by Thio-Barbituric Acid method on each groups.</p><p>The results of One-Way ANOVA test showed there was no significant difference (p = 0,290) between group of rats without treatment (<em>x̅</em>= 207,50) and group of rats induced by carrageenan (<em>x̅</em>=233,17). Then, there is no significant difference (p = 0.978) between group of rats induced by carrageenan and group of rats given with prophylactic purple sweet potato extract and induced by carrageenan (<em>x̅</em>= 232,50).</p><p>The conclusion of this study is giving intraplantar injection of carrageenan can increase liver MDA level insignificantly and giving prophylactic purple sweet potato extract has an effect to decrease the liver MDA level of rats induced by carragenan insignificantly because it contains anthocyanins as antioxidants.</p><p> </p><strong>Keywords: </strong>Liver, <em>Ipomoea batatas</em> L., Malondialdehyde, Anthocyanins

Investigation of the Association Between Carotid Artery Intima-Media Thickness (IMT) and Cardiac Risk Factors in Patients with Systemic Lupus Erythematosus

2020 ◽  
Vol 16 (2) ◽  
pp. 125-133
Author(s):  
Zahra Rezaieyazdi ◽  
Sima Sedighi ◽  
Masoumeh Salari ◽  
Mohammadreza H. Fard ◽  
Mahmoud R. Azarpazhooh ◽  
...  
Keyword(s):  
Risk Factors ◽  
Insulin Resistance ◽  
Lupus Erythematosus ◽  
Serum Insulin ◽  
Venous Blood ◽  
Test Group ◽  
Control Groups ◽  
Significant Difference ◽  
The Mean ◽  
And Control

Background: The relationship between SLE and traditional risk factors for cardiovascular events was evaluated. Methods: The data regarding sixty patients with SLE and 30 healthy controls (age and sex matched) were gathered using SLEDAI forms. Venous blood (10mL) from all the participants was examined for hs-CRP, homocysteine, VCAM1, CBC, anti-DNA antibody, C3, C4, low-density lipoprotein (LDL), cholesterol, FBS and triglyceride. : The IMT of carotid arteries was determined bilaterally by ultrasound. Other measurements included insulin levels via Elisa (Linco/Millipore Corp) and the HOMA-IR index for insulin resistance. Results: The mean age (in years) in the test and control groups was 28.8±10.3 (18-52) and 33.8±9.13 (18-48), respectively. Results: The mean age (in years) in the test and control groups was 28.8±10.3 (18-52) and 33.8±9.13 (18-48), respectively. : The average IMT in the test group was directly related to serum levels of VCAM1 (p<0.001), homocysteine (p<0.001), cholesterol (p<0.009), LDL (p<0.001), TG (p<0.001), and FPG (p=0.004). The association between other risk factors, insulin resistance, carotid IMT and SLEDAI, was nonexistent. Mean insulin and insulin resistance levels in all the participants were 0.43±2.06 µU/mL and 0.09±0.44, respectively. There was no significant difference between the test and control groups regarding serum insulin and insulin resistance levels (p=0.42 and p=0.9, respectively). None of the risk factors, such as hsCRP, VCAM1, or homocysteine, were shown to be related to insulin resistance (p=0.6, p=0.6, p=0.09, respectively). Conclusion:: Our findings did not show an increase in the prevalence of atherosclerosis in patients with SLE. There was no association between IMT and insulin resistance. However, the former was associated with FPG, total cholesterol, LDL, TG, homocystein and VCAM1.

scholarly journals Clinical and Immunological Efficacy of Mangosteen and Propolis Extracted Complex in Patients with Gingivitis: A Multi-Centered Randomized Controlled Clinical Trial

Nutrients ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 2604
Author(s):  
Jin-Young Park ◽  
Kyung-A Ko ◽  
Ji-Yeong Lee ◽  
Jae-Woon Oh ◽  
Hyun-Chang Lim ◽  
...  
Keyword(s):  
Patient Reported Outcomes ◽  
Daily Intake ◽  
Test Group ◽  
Control Group ◽  
Controlled Clinical Trial ◽  
Control Groups ◽  
Immunological Parameters ◽  
Significant Difference ◽  
Patient Reported ◽  
And Control

Background: Mangosteen and propolis extracts (MAEC) have been potential therapeutic agents known to exhibit powerful antioxidant and anti-inflammatory properties. The aim of the current study was to evaluate the clinical and immunological efficacy of MAEC as well as safety and patient-reported outcomes (PROMs) on gingivitis and incipient periodontitis. Methods: This study was performed on 104 patients diagnosed with gingivitis or incipient periodontitis. At baseline, the participants were randomly allocated to either the test group, with daily intake of a single capsule containing 194 mg of MAEC for eight weeks, or control group, with placebo. Clinical periodontal evaluation and immunological parameters from saliva and gingival sulcular fluid were assessed at baseline, four, and eight weeks. Individual PROMs were assessed by OHIP-14 questionnaires. Results: There was a significant difference of modified gingival index at four and eight weeks between the test and control groups. In the test group, crevicular interleukin (IL)-6 was reduced, and the salivary matrix metalloproteinase (MMP)-9 was increased after eight weeks. PROMs were improved up to four weeks compared to placebo. Conclusion: Oral administration of MAEC would have a potential to reduce gingival inflammation clinically and immunologically in the patients with gingivitis and incipient periodontitis.

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