Methotrexate-induced hepatotoxicity in rats and the therapeutic properties of vitamin E: a histopathologic and flowcytometric research.

Aim Of The Study: Methotrexate (MTX) causes oxidative stress-related liver damage. Our objective was to investigate the protective effects of vitamin E against MTX-induced hepatotoxicity through histopathological methods and flow cytometry.

Material And Methods: The rats were assigned to four groups: Control (2 ml saline for 5 days), MTX (20 mg/kg intraperitoneally (i.

Melamine exposure during the weaning period negatively affects ovarian reserve.

In this study, it was aimed to investigate the effects of melamine exposure since the weaning period on ovarian tissue and ovarian reserve. Melamine is illegally added to milk and formula to provide high false protein positivity. Female rats (the weaning period = 21 days old, n = 18) were divided into 3 groups.

Use of hyaluronic acid matrix in dorsal augmentation rhinoplasty.

Augmentation rhinoplasty sometimes is required for patients with saddle nose deformity caused by failed rhinoplasty or facial trauma; finding appropriate grafting material remains a significant problem for this procedure. We investigated hyaluronic acid matrix as an allograft for dorsal augmentation rhinoplasty in a rabbit model. We performed an osteotomy on the nasal bones of eight rabbits.

Comparison of Protective Effect of Aqueous and Ethanolic Extracts of Propolis against Gastric Ulceration in Rats.

This study focused on the protective effects of different types of propolis extracts on gastric mucosa in indomethacin-induced rats. The animals were divided into nine groups: control, negative control (ulcer), positive control (omeprazole), and experimental groups, which were summarized by 200, 400, and 600 mg/kg, bw for aqueous-based and ethanol, respectively. According to the histopathological evaluation, more than others, the doses of 200 and 400 mg/kg of aqueous-based propolis extracts had different degrees of positive effects on the gastric mucosa.

Effects of hyaluronic acid on the bone healing after lateral osteotomy: an experimental animal model.

Objective: Postoperative comfort of the patients undergoing rhinoplasty might be poor because of edema and ecchymosis caused by lateral osteotomy. In this animal experiment, we aimed at performing a quantitative assessment of effects of hyaluronic acid usage on healing process of lateral osteotomy.

Methods: Fourteen New Zealand rabbits with a weight of 2000-2500 kg and an age of 8-12 weeks were included.

Hepatotoxic effects of melamine exposure from the weaning period in rats: a flow cytometric, electron microscopic, and histopathologic study.

This study aims to investigate the effects of melamine exposure from the weaning period (21st postnatal days in rats) on liver tissue. Female Wistar albino rats ( = 18) were divided into three groups. About 0.

Melamine exposure from the weaning period causes apoptosis, inflammation, and damage to the blood-brain barrier.

The aim of this study to investigate the effects of melamine exposure from the weaning period on the developing brain in rats. Female Wistar albino rats (21 days old, n = 18) were divided into 3 groups, all animals were weighed daily and dose-adjusted. For 3 weeks, 0.

Does melamine exposure during infancy cause rhabdomyolysis?

We investigated the possible toxic effects of melamine on muscle tissue in rats using biochemical, hematological and histopathological methods. We used three groups of female albino Wistar rats. The first group was given 0.

The effects of intravitreal H S application on apoptosis in the retina and cornea in experimental glaucoma model.

One of the most important causes of visual loss (blindness) is glaucoma, which occurs due to the degeneration of the ganglion cells in retina. It has been shown that hydrogen sulphide (H S) acts an antioxidant, neuroprotective and neuromodulator and provides protection against oxidative stress and apoptosis. This study aims to examine through which apoptotic pathway H S acts in experimental glaucoma model.

Protective effects of aqueous extracts of some honeys against HCl/ethanol-induced gastric ulceration in rats.

This study focused on the concept of the possible protective effect of some honey types against HCl/ethanol-induced gastric ulcers in male Wistar albino rats. Rats were pretreated with rhododendron, chestnut, and oak honey orally with doses of 1.25 and 2.

Protective effects of Nigella sativa oil against carboplatin-induced liver damage in rats.

Objective: This study aimed to investigate the protective effects of nigella sativa oil (NSO) against liver damage due to intraperitoneal (i.p.) usage of carboplatin which is commonly used as a chemotherapeutic agent.

Intra-articular injection of hydrogen sulfide decreased the progression of gonarthrosis.

Hydrogen sulfide (HS) is found in both the plasma and synovial fluid of patients with gonarthrosis. In the present study, we investigated whether intra-articular injection of sodium hydrosulfide (NaSH) (1 mM, 30 μL), a HS donor, might affect gonarthrosis in rats. Gonarthrosis was induced surgically in the left knees of rats and left for 6 weeks for the development of disease.

The neurotoxic effects of prenatal gabapentin and oxcarbazepine exposure on newborn rats.

Aim: Teratogenicity is a problematic issue for pregnant women because of X-ray radiation, drugs, and genetic and unknown variables. First-generation antiepileptic drugs (AED) like valproic acid are well-known teratogens for developing fetuses. However, their usage is necessary in order to prevent maternal seizures.

Effects of grape seed extract on periodontal disease: an experimental study in rats.

Objective: This study aimed to demonstrate the effect of grape seed extract (GSE) on periodontitis.

Material And Methods: Ligature induced periodontitis was created in 40 rats and they were assigned to four equal groups. One group was fed laboratory diet (group A) while three groups received GSE additionally.

Assessment of MMP-1, MMP-8 and TIMP-2 in experimental periodontitis treated with kaempferol.

Purpose: The objective of this study was to investigate the effect of a dietary flavonoid, kaempferol, which has been shown to possess antiallergic, anti-inflammatory, anticarcinogenic, and antioxidant activities on the periodontium by histomorphometric analysis and on gingival tissue matrix metalloproteinase-1 (MMP-1), MMP-8, and tissue inhibitor of metalloproteinase-2 (TIMP-2) by biochemical analysis of rats after experimental periodontitis induction.

Methods: Sixty Wistar rats were randomly divided into six groups of ten rats each, and silk ligatures were placed around the cervical area of the mandibular first molars for 15 days, except in the healthy control rats. In the experimental periodontitis groups, systemic kaempferol (10 mg/kg/2d) and saline were administered by oral gavage at two different periods (with and without the presence of dental biofilm) to all rats except for the ten non-medicated rats.

Effects of tacrolimus and nifedipine, alone or in combination, on gingival tissues.

Background: The aim of this study is to compare gingival changes induced by short- and long-term tacrolimus and nifedipine administration, alone or in combination, and evaluate the expression levels of tumor suppressor phosphatase and tensin homolog (PTEN) in drug-induced gingival overgrowth.

Methods: Eighty rats were equally divided into eight groups: 1) tacrolimus for 8 weeks; 2) nifedipine for 8 weeks; 3) tacrolimus and nifedipine for 8 weeks; 4) 8-week control; 5) tacrolimus for 24 weeks; 6) nifedipine for 24 weeks; 7) tacrolimus and nifedipine for 24 weeks; and 8) 24-week control. Histomorphometric analyses included measurements of epithelial thickness, connective tissue thickness, and height.