The effects of <i>Tarantula cubensis</i> venom on open wound healing in rats
Journal of Wound Care, Feb 2, 2017
Objective: The aim of this study was to evaluate the clinical and histopathological effects of tw... more Objective: The aim of this study was to evaluate the clinical and histopathological effects of two different dosages of alcohol extract of Tarantula cubensis (Theranekron) on open wounds. Method: A total of 24 Sprague-Dawley rats were randomly divided into Tarantula cubensis extract (TCE1, n=8) 1/10 diluted, TCE (TCE2, n=8), and (3) vehicle-control (0.2 ml of 96 % ethanol, n=8) groups. Experimental full-thickness 1 x 1cm wounds were created on dorsum skin. TCE or vehicle were given systemically by subcutaneous injections on postoperative days 1 and 4. Wound planimetry and procurement of biopsies was performed on days 4, 8, 12 and 16. Results: The mean non-epithelialised wound area in the vehicle-control group was significantly larger than in the TCE1 group on days 4, 8, 12 and 16, and in the TCE2 group on days 8, 12 and 16 (p&lt;0.05). The mean percentage of wound contraction was significantly higher in the TCE1 and TCE2 groups than in the vehicle control group on days 8, 12 and 16 (p&lt;0.05). Histopathologically, wound healing was characterised by a significant decrease in the neutrophil counts and a significant increase in neovascularisation; neither were effected by TCE. Conclusion: Our results suggest that alcohol extract of Tarantula cubensis accelerates epithelialisation and, thus, has beneficial effects on open wound healing in rats.
In the present study, the effects of 5-HT3 receptor antagonist granisetron and ondansetron on the... more In the present study, the effects of 5-HT3 receptor antagonist granisetron and ondansetron on the acute phase of cisplatin-induced nausea and emesis were analyzed in dogs. Fifteen healty dogs were used in this study. Cisplatin was administrated to all dogs to induce nausea and vomiting. All dogs that received cisplatin (3 mg/kg IV) were observed continuously for 8 h. Five dogs administered only cisplatin acted as controls. Cisplatin induced emetic response and nausea was detected in the controls. Ondansetron (1 mg/kg IV) and granisetron (60 µg/kg IV) were administered to the other animals 30 min. before cisplatin administration. Although acute vomiting was significantly inhibited by ondansetron and granisetron, granisetron was found more effective on the nausea. It was concluded that both ondansetron and granisetron are effective in the control of cisplatininduced vomiting in dogs, but granisetron is more effective than ondansetron in the inhibition of cisplatin-induced nausea in dogs.
The aim of this study was to compare the clinical and histopathological effects of tripeptide cop... more The aim of this study was to compare the clinical and histopathological effects of tripeptide copper complex (TCC) and two different doses of laser application (heliumneon laser, 1 and 3 J cm-2) on wound healing with untreated control wounds. Experimental wounds were created on a total of 24 New Zealand white rabbits and topical TCC or laser was applied for 28 days. The wounds were observed daily, and planimetry was performed on days 7, 14, 21 and 28 to measure the unhealed wound area and percentage of total wound healing. Biopsies were taken weekly to evaluate the inflammatory response and the level of neovascularization. The median time for the first observable granulation tissue was shorter (P < 0.05) in the low and high dose laser groups than in the control group (3 and 2.66 vs. 4.5 days), but was not different between the TCC and control groups (4.16 vs. 4.5 days). Filling of the open wound to skin level with granulation tissue was faster (P < 0.05) in the TCC and high dose laser groups than in the control group (14 and 16 vs. 25 days), but was not different between the low dose laser and control groups (23 vs. 25 days). The average time for healing was shorter (P < 0.05) in the TCC and high dose laser groups (29.8 and 30.2 vs. 34.6 days), but was not different between the low dose laser and control groups (33.8 vs. 34.6 days). Histopathologically, wound healing was characterized by a decrease in the neutrophil counts and an increase in neovascularization. The TCC and high dose laser groups had greater neutrophil and vessel counts than in the control group, suggesting a more beneficial effect for wound healing.
This study was designed to determine antiemetic efficacy of prophylactic administration of dexame... more This study was designed to determine antiemetic efficacy of prophylactic administration of dexamethasone, metoclopramide or acepromazine and their influence on sedation in cats sedated with xylazine hydrochloride. Ten healthy adult cats (5 males and 5 females) were used. The prophylactic antiemetic effects of dexamethasone (4 mg/kg of body weight, IM), metoclopramide (0.4 mg/kg of body weight, IM), acepromazine (0.1 mg/kg of body weight, IM) or saline (0.9% NaCI) solution (0.1 ml/kg, IM) administered 1 hour before administration of xylazine hydrochloride (2 mg/kg, IM) was evaluated. Initially, the cats were given saline treatment (day 0); sequentially they were given dexamethasone, metoclopramide or acepromazine at 1 week intervals. After a xylazine injection, all cats were observed for 90 minutes for the assesment of frequency of emesis, and the time until the onset of the first emetic episode, and the determination of xylazine-induced sedation time. Prior treatment with 4 mg/kg of dexamethasone significantly reduced the frequency of emetic episodes but no alteration was observed in the time until the onset of the first emetic episode after the xylazine injection. Metoclopramide and acepromazine did not alter the frequency of emetic episodes but metoclopramide significantly prolonged the onset of the first emetic episode. Dexamethasone (4 mg/kg, IM) significantly decreased the frequency of emetic episodes without affecting the time until the onset of the first emetic episode, xylazine-induced sedation in cats.
Journal of Veterinary Medicine Series A-physiology Pathology Clinical Medicine, Dec 1, 2003
The effects of halothane, isoflurane and sevoflurane anaesthesia on hepatic function and hepatoce... more The effects of halothane, isoflurane and sevoflurane anaesthesia on hepatic function and hepatocellular damage were investigated in dogs, comparing the activity of hepatic enzymes and bilirubin concentration in serum. An experimental study was designed. Twenty-one clinically normal mongrel dogs were divided into three groups and accordingly anaesthetized with halothane (n ¼ 7), isoflurane (n ¼ 7) and sevoflurane (n ¼ 7). The dogs were 1-4 years old, and weighed between 13.5 and 27 kg (18.4 ± 3.9). Xylazine HCI (1-2 mg/kg) i.m. was used as pre-anaesthetic medication. Anaesthesia was induced with propofol 2 mg/kg i.v. The trachea was intubated and anaesthesia maintained with halothane, isoflurane or sevoflurane in oxygen at concentrations of 1.35, 2 and 3%, respectively. Intermittent positive pressure ventilation (tidal volume, 15 ml/kg; respiration rate, 12-14/min) was started immediately after intubation and the anaesthesia lasted for 60 min. Venous blood samples were collected before pre-medication, 24 and 48 h, and 7 and 14 days after anaesthesia. Serum level of aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP) and gamma-glutamyltransferase (GGT), lactate dehydrogenase (LDH GGT) activities and bilirubin concentration were measured. Serum AST, ALT and GGT activities increased after anaesthesia in all groups. In the halothane group, serum AST and ALT activities significantly increased all the time after anaesthesia compared with baseline activities. But in the isoflurane group AST and ALT activities increased only between 2 and 7 days, and in the sevoflurane group 7 days after anaesthesia. GGT activity was increased in the halothane group between 2 and 7 days, and in the isoflurane and sevoflurane groups 7 days after anaesthesia. All dogs recovered from anaesthesia without complications and none developed clinical signs of hepatic damage within 14 days. The results suggest that the use of halothane anaesthesia induces an elevation of serum activities of liver enzymes more frequently than isoflurane or sevoflurane from 2 to 14 days after anaesthesia in dogs. The effects of isoflurane or sevoflurane anaesthesia on the liver in dogs is safer than halothane anaesthesia in dogs.
Tıp hekimliğinde, anesteziyoloji alanındaki geliş meler çok hızlı olmaktadır. Bu gelişmelere para... more Tıp hekimliğinde, anesteziyoloji alanındaki geliş meler çok hızlı olmaktadır. Bu gelişmelere paralel olarak, çalışmamızda bu gelişmeleri yakalamak ve çağdaş bir anlayışla sağlıklı bir anestezi oluşturmak ve anes tezinin kontrolü konusunda derinleşmek amaçlanmıştır. Köpeklerde deneysel ve klinik olgular üzerinde, kardio-vasküler ve solunum sistemlerine ilişkin rutin kontrol parametreleri yanı sıra, direkt arter iyel kan basıncı ve sent rai venöz basınç ölçümleri ile, anestezinin kont rolü yapılarak bunların yorumlanması ve bunları rutin hale getirecek bilgi ve beceri sağlanması amaçlanmıştır. Çalışmanın deneysel materyali değişik yaş cinsi yet ve ağırlıktaki 25 köpekten, klinik olgular ise, kliniğe değişik cerrahi hastalıklar nedeniyle getirilen ve operatif sağaltım için seçilen değişik ırk, cins, yaş ve ağırlıkta 10 köpekten oluştu. Atropin sülfat ve xylazine hidroklorid ile yapı lan premedikasyonu takiben, pentotal sodyum ile indüksi- yon sağlandı. Entübe edilen hayvanlarda hal ot ...
The aim of this study was to evaluate the clinical, surgical and diagnostic imaging findings in 1... more The aim of this study was to evaluate the clinical, surgical and diagnostic imaging findings in 11 cats and 3 dogs with suspected acute and chronic traumatic diaphragmatic hernia, and to compare the results of positive contrast cheliography (peritoneography) taken immediately and 5 min after the injection of contrast material. Thoracic and abdominal radiography, ultrasonography, and positive contrast cheliography of all animals were performed. Eight cases were considered as acute and six cases were considered chronic. The contrast images taken immediately after the injection of contrast material revealed the contrast material in the thoracic cavity in 8/8 acute trauma patients, but in none of the chronic cases. In 5/6 of these cases contrast material was seen in the thoracal cavity only in additional images taken after 5 min. One patient was diagnosed with FIP and excluded from the study. Twelve cases had complete resolution and one animal died during the early postoperative period....
Naunyn-Schmiedeberg's Archives of Pharmacology, 2014
Chlorogenic acid (CGA) is a well-known natural antioxidant in human diet. To understand the effec... more Chlorogenic acid (CGA) is a well-known natural antioxidant in human diet. To understand the effects of CGA on wound healing by enhancing antioxidant defense in the body, the present study sought to investigate the potential role of systemic CGA therapy on wound healing and oxidative stress markers of the skin. We also aimed to understand whether chronic CGA treatment has side effects on pivotal organs or rat bone marrow during therapy. Full-thickness experimental wounds were created on the backs of rats. CGA (25, 50, 100, 200 mg/kg) or vehicle was administered intraperitoneally for 15 days. All rats were sacrificed on the 16th day. Biochemical, histopathological, and immunohistochemical examinations were performed. Possible side effects were also investigated. The results suggested that CGA accelerated wound healing in a dose-dependent manner. CGA enhanced hydroxyproline content, decreased malondialdehyde and nitric oxide levels. and elevated reduced glutathione, superoxide dismutase, and catalase levels in wound tissues. Epithelialization, angiogenesis, fibroblast proliferation, and collagen formation increased by CGA while polymorph nuclear leukocytes infiltration decreased. CGA modulated matrix metalloproteinase-9 and tissue inhibitor-2 expression in biopsies. Otherwise, high dose of CGA increased lipid peroxidation of liver and kidney without affecting the heart and muscle samples. Chronic CGA increased micronuclei formation and induced cytotoxicity in the bone marrow. In conclusion, systemic CGA has beneficial effects in improving wound repair. Antioxidant, free radical scavenger, angiogenesis, and anti-inflammatory effects of CGA may ameliorate wound healing. High dose of CGA may induce side effects. In light of these observations, CGA supplementation or dietary CGA may have benefit on wound healing.
SummaryThe effects of halothane, isoflurane and sevoflurane anaesthesia on hepatic function and h... more SummaryThe effects of halothane, isoflurane and sevoflurane anaesthesia on hepatic function and hepatocellular damage were investigated in dogs, comparing the activity of hepatic enzymes and bilirubin concentration in serum. An experimental study was designed. Twenty‐one clinically normal mongrel dogs were divided into three groups and accordingly anaesthetized with halothane (n = 7), isoflurane (n = 7) and sevoflurane (n = 7). The dogs were 1–4 years old, and weighed between 13.5 and 27 kg (18.4 ± 3.9). Xylazine HCI (1–2 mg/kg) i.m. was used as pre‐anaesthetic medication. Anaesthesia was induced with propofol 2 mg/kg i.v. The trachea was intubated and anaesthesia maintained with halothane, isoflurane or sevoflurane in oxygen at concentrations of 1.35, 2 and 3%, respectively. Intermittent positive pressure ventilation (tidal volume, 15 ml/kg; respiration rate, 12–14/min) was started immediately after intubation and the anaesthesia lasted for 60 min. Venous blood samples were collect...
We studied the hemostatic and histopathological effects, and intra-abdominal adhesion scores of a... more We studied the hemostatic and histopathological effects, and intra-abdominal adhesion scores of a new hemostatic agent, Ankaferd Blood Stopper (ABS), in an experimental liver injury model and compared it with regenerated oxidized cellulose. Thirty-six rats were randomly assigned to ABS, oxidized cellulose (Surgicel), and control groups (n U 12, each). A wedge resection was performed on the left medial lobe of the liver. In the ABS group the liver surface was sprayed with ABS, whereas in the Surgicel group the liver was covered with double-layered oxidized cellulose. In the control group, saline solution was sprayed on the cut surface. The mean bleeding time was shorter in the ABS (23.08 W 6.99 s) and Surgicel groups (47.91 W 8.21 s) than in the control group (223.42 W 57.83 s). No significant difference was found in the ABS and Surgicel groups in terms of preoperative and postoperative hematocrit (hct) values (P > 0.05). Whereas there was no significant difference on day 7 (P > 0.05), total adhesion score of ABS group was lower than both Surgicel (P < 0.05) and control groups (P < 0.01) on day 14. Liver sections from ABS group displayed more favorable histopathological changes when compared with Surgicel group on day 7 and day 14. All livers in the ABS group completed their regeneration process with minimal signs of inflammation. Our findings suggest that ABS is more effective than Surgicel and control groups in achieving hemostasis and in reducing blood loss. Apart from this, ABS causes more encouraging histopathological changes and better intra-abdominal adhesion scores in rat experimental liver trauma model.
This study was designed to determine antiemetic efficacy of prophylactic administration of dexame... more This study was designed to determine antiemetic efficacy of prophylactic administration of dexamethasone, metoclopramide or acepromazine and their influence on sedation in cats sedated with xylazine hydrochloride. Ten healthy adult cats (5 males and 5 females) were used. The prophylactic antiemetic effects of dexamethasone (4 mg/kg of body weight, IM), metoclopramide (0.4 mg/kg of body weight, IM), acepromazine (0.1 mg/kg of body weight, IM) or saline (0.9% NaCI) solution (0.1 ml/kg, IM) administered 1 hour before administration of xylazine hydrochloride (2 mg/kg, IM) was evaluated. Initially, the cats were given saline treatment (day 0); sequentially they were given dexamethasone, metoclopramide or acepromazine at 1 week intervals. After a xylazine injection, all cats were observed for 90 minutes for the assesment of frequency of emesis, and the time until the onset of the first emetic episode, and the determination of xylazine-induced sedation time. Prior treatment with 4 mg/kg of...
In this study, the effects of Ankaferd Blood Stopper (ABS) and silver sulphadiazine (SSD) cream o... more In this study, the effects of Ankaferd Blood Stopper (ABS) and silver sulphadiazine (SSD) cream on burn wound healing were investigated in rats. A total of 24 outbred, male, Sprague-Dawley rats were randomly allocated to (1) ABS, (2) SSD, and (3) control groups. Bilateral burn wounds were created near the caudal border of the scapula. Wounds in each group were treated daily with sponges soaked in ABS solution, 1% SSD cream, or saline, respectively. On days 0, 7, 14, 21, and 28, unhealed wound area was measured and biopsy samples were taken for histopathological examination (except day 0). At the end of day 28, all rats in the ABS and SSD groups had complete coverage of the wounds with granulation tissue and epithelialization, whereas wounds in the control group were not completely epithelialized. On day 7, the mean unhealed wound areas and the mean percentages of wound contraction were not significantly different among the groups. However, the mean percentage of wound contraction in...
The effects of sevoflurane or isoflurane on arterial blood gas, arterial oxyhaemoglobin saturatio... more The effects of sevoflurane or isoflurane on arterial blood gas, arterial oxyhaemoglobin saturation and end-tidal Co 2 tension were monitored during induction and maintenance of anaesthesia in 10 premedicated New Zealand White (NZW) rabbits. For induction, the anaesthetic agents were delivered via a face-mask. after induction was completed, an endotracheal tube was introduced for maintenance of anaesthesia for a period of 90 minutes. Changes in heart rate, respiratory rate, arterial blood gas, arterial oxyhaemoglobin saturation, blood pH and end-tidal Co 2 tension were recorded. although sevoflurane and isoflurane produce similar cardiopulmonary effects in premedicated rabbits, sevoflurane provides a smoother and faster induction because of its lower blood/gas partition coefficient. Thus sevoflurane is probably a more suitable agent than isoflurane for mask induction and maintenance. Its lower blood solubility also makes sevoflurane more satisfactory than isoflurane for maintenance of anaesthesia because it allows the anaesthetist to change the depth of anaesthesia more rapidly.
Turkish Journal of Veterinary and Animal Sciences, 2003
Endotoxaemia is still one of the most common causes of death in humans and animals in intensive c... more Endotoxaemia is still one of the most common causes of death in humans and animals in intensive care units (1). Vasoactive substances such as histamine, tumour necrosing factor and leukotriens released by endotoxin in the bloodstream lead to hypovolaemia and decreased
The effects of <i>Tarantula cubensis</i> venom on open wound healing in rats
Journal of Wound Care, Feb 2, 2017
Objective: The aim of this study was to evaluate the clinical and histopathological effects of tw... more Objective: The aim of this study was to evaluate the clinical and histopathological effects of two different dosages of alcohol extract of Tarantula cubensis (Theranekron) on open wounds. Method: A total of 24 Sprague-Dawley rats were randomly divided into Tarantula cubensis extract (TCE1, n=8) 1/10 diluted, TCE (TCE2, n=8), and (3) vehicle-control (0.2 ml of 96 % ethanol, n=8) groups. Experimental full-thickness 1 x 1cm wounds were created on dorsum skin. TCE or vehicle were given systemically by subcutaneous injections on postoperative days 1 and 4. Wound planimetry and procurement of biopsies was performed on days 4, 8, 12 and 16. Results: The mean non-epithelialised wound area in the vehicle-control group was significantly larger than in the TCE1 group on days 4, 8, 12 and 16, and in the TCE2 group on days 8, 12 and 16 (p&lt;0.05). The mean percentage of wound contraction was significantly higher in the TCE1 and TCE2 groups than in the vehicle control group on days 8, 12 and 16 (p&lt;0.05). Histopathologically, wound healing was characterised by a significant decrease in the neutrophil counts and a significant increase in neovascularisation; neither were effected by TCE. Conclusion: Our results suggest that alcohol extract of Tarantula cubensis accelerates epithelialisation and, thus, has beneficial effects on open wound healing in rats.
In the present study, the effects of 5-HT3 receptor antagonist granisetron and ondansetron on the... more In the present study, the effects of 5-HT3 receptor antagonist granisetron and ondansetron on the acute phase of cisplatin-induced nausea and emesis were analyzed in dogs. Fifteen healty dogs were used in this study. Cisplatin was administrated to all dogs to induce nausea and vomiting. All dogs that received cisplatin (3 mg/kg IV) were observed continuously for 8 h. Five dogs administered only cisplatin acted as controls. Cisplatin induced emetic response and nausea was detected in the controls. Ondansetron (1 mg/kg IV) and granisetron (60 µg/kg IV) were administered to the other animals 30 min. before cisplatin administration. Although acute vomiting was significantly inhibited by ondansetron and granisetron, granisetron was found more effective on the nausea. It was concluded that both ondansetron and granisetron are effective in the control of cisplatininduced vomiting in dogs, but granisetron is more effective than ondansetron in the inhibition of cisplatin-induced nausea in dogs.
The aim of this study was to compare the clinical and histopathological effects of tripeptide cop... more The aim of this study was to compare the clinical and histopathological effects of tripeptide copper complex (TCC) and two different doses of laser application (heliumneon laser, 1 and 3 J cm-2) on wound healing with untreated control wounds. Experimental wounds were created on a total of 24 New Zealand white rabbits and topical TCC or laser was applied for 28 days. The wounds were observed daily, and planimetry was performed on days 7, 14, 21 and 28 to measure the unhealed wound area and percentage of total wound healing. Biopsies were taken weekly to evaluate the inflammatory response and the level of neovascularization. The median time for the first observable granulation tissue was shorter (P < 0.05) in the low and high dose laser groups than in the control group (3 and 2.66 vs. 4.5 days), but was not different between the TCC and control groups (4.16 vs. 4.5 days). Filling of the open wound to skin level with granulation tissue was faster (P < 0.05) in the TCC and high dose laser groups than in the control group (14 and 16 vs. 25 days), but was not different between the low dose laser and control groups (23 vs. 25 days). The average time for healing was shorter (P < 0.05) in the TCC and high dose laser groups (29.8 and 30.2 vs. 34.6 days), but was not different between the low dose laser and control groups (33.8 vs. 34.6 days). Histopathologically, wound healing was characterized by a decrease in the neutrophil counts and an increase in neovascularization. The TCC and high dose laser groups had greater neutrophil and vessel counts than in the control group, suggesting a more beneficial effect for wound healing.
This study was designed to determine antiemetic efficacy of prophylactic administration of dexame... more This study was designed to determine antiemetic efficacy of prophylactic administration of dexamethasone, metoclopramide or acepromazine and their influence on sedation in cats sedated with xylazine hydrochloride. Ten healthy adult cats (5 males and 5 females) were used. The prophylactic antiemetic effects of dexamethasone (4 mg/kg of body weight, IM), metoclopramide (0.4 mg/kg of body weight, IM), acepromazine (0.1 mg/kg of body weight, IM) or saline (0.9% NaCI) solution (0.1 ml/kg, IM) administered 1 hour before administration of xylazine hydrochloride (2 mg/kg, IM) was evaluated. Initially, the cats were given saline treatment (day 0); sequentially they were given dexamethasone, metoclopramide or acepromazine at 1 week intervals. After a xylazine injection, all cats were observed for 90 minutes for the assesment of frequency of emesis, and the time until the onset of the first emetic episode, and the determination of xylazine-induced sedation time. Prior treatment with 4 mg/kg of dexamethasone significantly reduced the frequency of emetic episodes but no alteration was observed in the time until the onset of the first emetic episode after the xylazine injection. Metoclopramide and acepromazine did not alter the frequency of emetic episodes but metoclopramide significantly prolonged the onset of the first emetic episode. Dexamethasone (4 mg/kg, IM) significantly decreased the frequency of emetic episodes without affecting the time until the onset of the first emetic episode, xylazine-induced sedation in cats.
Journal of Veterinary Medicine Series A-physiology Pathology Clinical Medicine, Dec 1, 2003
The effects of halothane, isoflurane and sevoflurane anaesthesia on hepatic function and hepatoce... more The effects of halothane, isoflurane and sevoflurane anaesthesia on hepatic function and hepatocellular damage were investigated in dogs, comparing the activity of hepatic enzymes and bilirubin concentration in serum. An experimental study was designed. Twenty-one clinically normal mongrel dogs were divided into three groups and accordingly anaesthetized with halothane (n ¼ 7), isoflurane (n ¼ 7) and sevoflurane (n ¼ 7). The dogs were 1-4 years old, and weighed between 13.5 and 27 kg (18.4 ± 3.9). Xylazine HCI (1-2 mg/kg) i.m. was used as pre-anaesthetic medication. Anaesthesia was induced with propofol 2 mg/kg i.v. The trachea was intubated and anaesthesia maintained with halothane, isoflurane or sevoflurane in oxygen at concentrations of 1.35, 2 and 3%, respectively. Intermittent positive pressure ventilation (tidal volume, 15 ml/kg; respiration rate, 12-14/min) was started immediately after intubation and the anaesthesia lasted for 60 min. Venous blood samples were collected before pre-medication, 24 and 48 h, and 7 and 14 days after anaesthesia. Serum level of aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP) and gamma-glutamyltransferase (GGT), lactate dehydrogenase (LDH GGT) activities and bilirubin concentration were measured. Serum AST, ALT and GGT activities increased after anaesthesia in all groups. In the halothane group, serum AST and ALT activities significantly increased all the time after anaesthesia compared with baseline activities. But in the isoflurane group AST and ALT activities increased only between 2 and 7 days, and in the sevoflurane group 7 days after anaesthesia. GGT activity was increased in the halothane group between 2 and 7 days, and in the isoflurane and sevoflurane groups 7 days after anaesthesia. All dogs recovered from anaesthesia without complications and none developed clinical signs of hepatic damage within 14 days. The results suggest that the use of halothane anaesthesia induces an elevation of serum activities of liver enzymes more frequently than isoflurane or sevoflurane from 2 to 14 days after anaesthesia in dogs. The effects of isoflurane or sevoflurane anaesthesia on the liver in dogs is safer than halothane anaesthesia in dogs.
Tıp hekimliğinde, anesteziyoloji alanındaki geliş meler çok hızlı olmaktadır. Bu gelişmelere para... more Tıp hekimliğinde, anesteziyoloji alanındaki geliş meler çok hızlı olmaktadır. Bu gelişmelere paralel olarak, çalışmamızda bu gelişmeleri yakalamak ve çağdaş bir anlayışla sağlıklı bir anestezi oluşturmak ve anes tezinin kontrolü konusunda derinleşmek amaçlanmıştır. Köpeklerde deneysel ve klinik olgular üzerinde, kardio-vasküler ve solunum sistemlerine ilişkin rutin kontrol parametreleri yanı sıra, direkt arter iyel kan basıncı ve sent rai venöz basınç ölçümleri ile, anestezinin kont rolü yapılarak bunların yorumlanması ve bunları rutin hale getirecek bilgi ve beceri sağlanması amaçlanmıştır. Çalışmanın deneysel materyali değişik yaş cinsi yet ve ağırlıktaki 25 köpekten, klinik olgular ise, kliniğe değişik cerrahi hastalıklar nedeniyle getirilen ve operatif sağaltım için seçilen değişik ırk, cins, yaş ve ağırlıkta 10 köpekten oluştu. Atropin sülfat ve xylazine hidroklorid ile yapı lan premedikasyonu takiben, pentotal sodyum ile indüksi- yon sağlandı. Entübe edilen hayvanlarda hal ot ...
The aim of this study was to evaluate the clinical, surgical and diagnostic imaging findings in 1... more The aim of this study was to evaluate the clinical, surgical and diagnostic imaging findings in 11 cats and 3 dogs with suspected acute and chronic traumatic diaphragmatic hernia, and to compare the results of positive contrast cheliography (peritoneography) taken immediately and 5 min after the injection of contrast material. Thoracic and abdominal radiography, ultrasonography, and positive contrast cheliography of all animals were performed. Eight cases were considered as acute and six cases were considered chronic. The contrast images taken immediately after the injection of contrast material revealed the contrast material in the thoracic cavity in 8/8 acute trauma patients, but in none of the chronic cases. In 5/6 of these cases contrast material was seen in the thoracal cavity only in additional images taken after 5 min. One patient was diagnosed with FIP and excluded from the study. Twelve cases had complete resolution and one animal died during the early postoperative period....
Naunyn-Schmiedeberg's Archives of Pharmacology, 2014
Chlorogenic acid (CGA) is a well-known natural antioxidant in human diet. To understand the effec... more Chlorogenic acid (CGA) is a well-known natural antioxidant in human diet. To understand the effects of CGA on wound healing by enhancing antioxidant defense in the body, the present study sought to investigate the potential role of systemic CGA therapy on wound healing and oxidative stress markers of the skin. We also aimed to understand whether chronic CGA treatment has side effects on pivotal organs or rat bone marrow during therapy. Full-thickness experimental wounds were created on the backs of rats. CGA (25, 50, 100, 200 mg/kg) or vehicle was administered intraperitoneally for 15 days. All rats were sacrificed on the 16th day. Biochemical, histopathological, and immunohistochemical examinations were performed. Possible side effects were also investigated. The results suggested that CGA accelerated wound healing in a dose-dependent manner. CGA enhanced hydroxyproline content, decreased malondialdehyde and nitric oxide levels. and elevated reduced glutathione, superoxide dismutase, and catalase levels in wound tissues. Epithelialization, angiogenesis, fibroblast proliferation, and collagen formation increased by CGA while polymorph nuclear leukocytes infiltration decreased. CGA modulated matrix metalloproteinase-9 and tissue inhibitor-2 expression in biopsies. Otherwise, high dose of CGA increased lipid peroxidation of liver and kidney without affecting the heart and muscle samples. Chronic CGA increased micronuclei formation and induced cytotoxicity in the bone marrow. In conclusion, systemic CGA has beneficial effects in improving wound repair. Antioxidant, free radical scavenger, angiogenesis, and anti-inflammatory effects of CGA may ameliorate wound healing. High dose of CGA may induce side effects. In light of these observations, CGA supplementation or dietary CGA may have benefit on wound healing.
SummaryThe effects of halothane, isoflurane and sevoflurane anaesthesia on hepatic function and h... more SummaryThe effects of halothane, isoflurane and sevoflurane anaesthesia on hepatic function and hepatocellular damage were investigated in dogs, comparing the activity of hepatic enzymes and bilirubin concentration in serum. An experimental study was designed. Twenty‐one clinically normal mongrel dogs were divided into three groups and accordingly anaesthetized with halothane (n = 7), isoflurane (n = 7) and sevoflurane (n = 7). The dogs were 1–4 years old, and weighed between 13.5 and 27 kg (18.4 ± 3.9). Xylazine HCI (1–2 mg/kg) i.m. was used as pre‐anaesthetic medication. Anaesthesia was induced with propofol 2 mg/kg i.v. The trachea was intubated and anaesthesia maintained with halothane, isoflurane or sevoflurane in oxygen at concentrations of 1.35, 2 and 3%, respectively. Intermittent positive pressure ventilation (tidal volume, 15 ml/kg; respiration rate, 12–14/min) was started immediately after intubation and the anaesthesia lasted for 60 min. Venous blood samples were collect...
We studied the hemostatic and histopathological effects, and intra-abdominal adhesion scores of a... more We studied the hemostatic and histopathological effects, and intra-abdominal adhesion scores of a new hemostatic agent, Ankaferd Blood Stopper (ABS), in an experimental liver injury model and compared it with regenerated oxidized cellulose. Thirty-six rats were randomly assigned to ABS, oxidized cellulose (Surgicel), and control groups (n U 12, each). A wedge resection was performed on the left medial lobe of the liver. In the ABS group the liver surface was sprayed with ABS, whereas in the Surgicel group the liver was covered with double-layered oxidized cellulose. In the control group, saline solution was sprayed on the cut surface. The mean bleeding time was shorter in the ABS (23.08 W 6.99 s) and Surgicel groups (47.91 W 8.21 s) than in the control group (223.42 W 57.83 s). No significant difference was found in the ABS and Surgicel groups in terms of preoperative and postoperative hematocrit (hct) values (P > 0.05). Whereas there was no significant difference on day 7 (P > 0.05), total adhesion score of ABS group was lower than both Surgicel (P < 0.05) and control groups (P < 0.01) on day 14. Liver sections from ABS group displayed more favorable histopathological changes when compared with Surgicel group on day 7 and day 14. All livers in the ABS group completed their regeneration process with minimal signs of inflammation. Our findings suggest that ABS is more effective than Surgicel and control groups in achieving hemostasis and in reducing blood loss. Apart from this, ABS causes more encouraging histopathological changes and better intra-abdominal adhesion scores in rat experimental liver trauma model.
This study was designed to determine antiemetic efficacy of prophylactic administration of dexame... more This study was designed to determine antiemetic efficacy of prophylactic administration of dexamethasone, metoclopramide or acepromazine and their influence on sedation in cats sedated with xylazine hydrochloride. Ten healthy adult cats (5 males and 5 females) were used. The prophylactic antiemetic effects of dexamethasone (4 mg/kg of body weight, IM), metoclopramide (0.4 mg/kg of body weight, IM), acepromazine (0.1 mg/kg of body weight, IM) or saline (0.9% NaCI) solution (0.1 ml/kg, IM) administered 1 hour before administration of xylazine hydrochloride (2 mg/kg, IM) was evaluated. Initially, the cats were given saline treatment (day 0); sequentially they were given dexamethasone, metoclopramide or acepromazine at 1 week intervals. After a xylazine injection, all cats were observed for 90 minutes for the assesment of frequency of emesis, and the time until the onset of the first emetic episode, and the determination of xylazine-induced sedation time. Prior treatment with 4 mg/kg of...
In this study, the effects of Ankaferd Blood Stopper (ABS) and silver sulphadiazine (SSD) cream o... more In this study, the effects of Ankaferd Blood Stopper (ABS) and silver sulphadiazine (SSD) cream on burn wound healing were investigated in rats. A total of 24 outbred, male, Sprague-Dawley rats were randomly allocated to (1) ABS, (2) SSD, and (3) control groups. Bilateral burn wounds were created near the caudal border of the scapula. Wounds in each group were treated daily with sponges soaked in ABS solution, 1% SSD cream, or saline, respectively. On days 0, 7, 14, 21, and 28, unhealed wound area was measured and biopsy samples were taken for histopathological examination (except day 0). At the end of day 28, all rats in the ABS and SSD groups had complete coverage of the wounds with granulation tissue and epithelialization, whereas wounds in the control group were not completely epithelialized. On day 7, the mean unhealed wound areas and the mean percentages of wound contraction were not significantly different among the groups. However, the mean percentage of wound contraction in...
The effects of sevoflurane or isoflurane on arterial blood gas, arterial oxyhaemoglobin saturatio... more The effects of sevoflurane or isoflurane on arterial blood gas, arterial oxyhaemoglobin saturation and end-tidal Co 2 tension were monitored during induction and maintenance of anaesthesia in 10 premedicated New Zealand White (NZW) rabbits. For induction, the anaesthetic agents were delivered via a face-mask. after induction was completed, an endotracheal tube was introduced for maintenance of anaesthesia for a period of 90 minutes. Changes in heart rate, respiratory rate, arterial blood gas, arterial oxyhaemoglobin saturation, blood pH and end-tidal Co 2 tension were recorded. although sevoflurane and isoflurane produce similar cardiopulmonary effects in premedicated rabbits, sevoflurane provides a smoother and faster induction because of its lower blood/gas partition coefficient. Thus sevoflurane is probably a more suitable agent than isoflurane for mask induction and maintenance. Its lower blood solubility also makes sevoflurane more satisfactory than isoflurane for maintenance of anaesthesia because it allows the anaesthetist to change the depth of anaesthesia more rapidly.
Turkish Journal of Veterinary and Animal Sciences, 2003
Endotoxaemia is still one of the most common causes of death in humans and animals in intensive c... more Endotoxaemia is still one of the most common causes of death in humans and animals in intensive care units (1). Vasoactive substances such as histamine, tumour necrosing factor and leukotriens released by endotoxin in the bloodstream lead to hypovolaemia and decreased
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