Could edaravone prevent gentamicin ototoxicity? An experimental study

2016 ◽  
Vol 36 (2) ◽  
pp. 123-127 ◽  
Author(s):  
M Turan ◽  
E Ciğer ◽  
S Arslanoğlu ◽  
H Börekci ◽  
K Önal

Objectives: Clinical application of gentamicin may cause nephrotoxicity and ototoxicity. Our study is the first study to investigate the protective effects of edaravone against the gentamicin-induced ototoxicity. We investigated the protective effect of intraperitoneal (i.p.) edaravone application against gentamicin-induced ototoxicity in guinea pigs. Methods: Fourteen guinea pigs were divided into two equal groups consisting of a control group and a study group. One-hundred sixty milligrams per kilogram subcutaneous gentamicin and 0.3 mL i.p. saline were applied simultaneously once daily to seven guinea pigs in the control group (group 1). One-hundred sixty milligrams per kilogram gentamicin was applied subcutaneously and 3 mg/kg edaravone was applied intraperitoneally once daily for 7 days simultaneously to seven guinea pigs in the study group (group 2). Following the drug application, auditory brainstem response measurements were performed for the left ear on the 3rd and 7th days. Results: Hearing threshold values of the group 1 and group 2 measured in the 3rd day of the study were detected as 57.14 ± 4.88 and 82.86 ± 7.56, respectively. This difference was statistically significant ( p < 0.05). Hearing threshold values of the group 1 and group 2 measured in the 7th day of the study were detected as 87.14 ± 4.88 and 62.86 ± 4.88, respectively. This difference was statistically significant ( p < 0.05). Conclusion: A statistically significant difference between the average threshold values of edaravone-administered group 2 and that of group 1 without edaravone was found. These differences show that systemic edaravone administration could diminish ototoxic effects of gentamicin and the severity of the hearing loss.

2017 ◽  
Vol 5 (1) ◽  
Author(s):  
Rahmi Sofiana ◽  
Anak A.G.P. Wiraguna ◽  
Wimpie Pangkahila

Abstract: Ultraviolet B (UVB) ray may cause skin hyperpigmentation due to increased melanin level. Noni seeds (Morinda citrifolia) extract was a strong candidate as an antioxidant and whitening agent. This study was aimed to prove the effect of noni seeds extract cream in prevention the increase of melanin in UVB-exposed guinea pig (Cavia porcellus). This was a true experimental study using posttest only control group design. Subjects were 30 guinea pigs divided into 3 groups, each of 10 guinea pigs. Group 1, the control group, was treated with UVB exposure and basic cream; group 2 was treated with UVB and 4% noni seed cream; and group 3 was treated with UVB and 4% hydroquinone cream. A total of 390 mJ/cm2 ultraviolet B dosage was given for 2 weeks. Histopathological examination with Masson-Fontana staining was performed to evaluate the melanin areas with black color. The amount of melanin was calculated by the percentage of pixel areas of melanin and was compared with the pixels of all epidermal tissues. The results showed that the highest number of melanin was in group 1 (10.61±5.33%), while in group 2 was 1.4±0.65%, and in group 3 was 0.45±0.23%. There was a significant difference between the control group and group 2 as well as group 3 (P <0.05) whereas no significant difference was found between group 2 and group 3 (P >0.05). Conclusion: The 4% noni seeds extract (Morinda citrifolia) cream could prevent the increase of skin melanin in UVB-exposed guinea pig as effective as 4% hydroquinone cream.Keywords: noni seeds extract cream, melanin, ultraviolet B, guinea pigs Abstrak: Paparan sinar ultraviolet B (UVB) mengakibatkan terjadinya kelainan hiperpigmentasi yang ditandai dengan peningkatan jumlah melanin. Ekstrak biji mengkudu memiliki kombinasi zat aktif yang dapat bekerja sinergis dalam mencegah peningkatan jumlah melanin. Penelitian ini bertujuan untuk membuktikan efek pemberian krim ekstrak biji mengkudu (Morinda citrifolia) dalam mencegah peningkatan jumlah melanin kulit marmut (Cavia porcellus) yang dipapar sinar UVB. Jenis penelitian ialah eksperimental dengan randomized posttest only control group design menggunakan 30 ekor marmut jantan yang dibagi atas 3 kelompok, masing-masing 10 ekor. Kelompok 1 yaitu kelompok kontrol, diberi paparan sinar UVB dan diolesi krim dasar. Kelompok 2 diberi paparan sinar UVB dan krim ekstrak biji mengkudu 4%. Kelompok 3 diberi paparan sinar UVB dan krim hidrokuinon 4%. Dosis total UVB yaitu 390 mJ/cm2 diberikan selama 2 minggu. Pemeriksaan histopatologik jaringan kulit dengan pewarnaan Masson- Fontana. Jumlah melanin dihitung dengan persentase pixel luas area melanin dibandingkan dengan pixel seluruh jaringan epidermis. Hasil penelitian menunjukkan jumlah melanin pada Kelompok 1 sebesar 10,61±5,33%; pada kelompok 2 sebesar 1.4±0.65%, dan pada kelompok 3 sebesar 0,45±0,23%. Terdapat perbedaan bermakna antara kelompok 1 dengan kelompok 2 dan 3 (P <0,05). Perbandingan antara kelompok 2 dan 3 tidak berbeda bermakna dalam mencegah peningkatan jumlah melanin (P >0,05). Simpulan: Krim ekstrak biji mengkudu 4% dapat mencegah peningkatan jumlah melanin kulit marmut yang dipapar sinar UVB, dan memiliki efektifitas yang sama dengan krim hidrokuinon 4%. Kata kunci: krim ekstrak biji mengkudu, melanin, ultraviolet B, marmut


2018 ◽  
Vol 4 (1) ◽  
pp. e000446 ◽  
Author(s):  
Gafin Ericson Morgan ◽  
Rhodri Martin ◽  
Lisa Williams ◽  
Owen Pearce ◽  
Keith Morris

ObjectivesThe aim of this study was to establish quantitative values for asymptomatic and symptomatic Achilles tendons.DesignCohort study with a single (cross-sectional) time point of patients diagnosed with unilateral Achilles tendinopathy and an asymptomatic group with comparative homogeneity.MethodsA sample of 50 participants: 25 diagnosed with symptomatic unilateral Achilles tendinopathy (AT group) and 25 with asymptomatic Achilles tendons (control group 2). The asymptomatic side of the AT group was used as a control (control group 1). Measurements at 2 cm intervals on the tendon from its insertion at the calcaneum up to the musculotendinous junction were taken non-weight bearing (NWB) and weight bearing (WB) using the MyotonPRO.ResultsThere was a significant (p<0.005) decrease in natural oscillation frequency (F) at points 2, 3 and 4 of the AT group (NWB condition) and points 2 and 3 for the WB condition. There was a significant (p<0.005) increase in logarithmic decrement (D) at points 2 and 3 signifying a decrease in elasticity. Dynamic stiffness (S) was significantly (p<0.005) reduced in the AT group at points 2 and 3 WB and point 3 WB. There was no significant difference in creep (C) observed between the symptomatic and asymptomatic tendons. There was a significant (p<0.005) increase in mechanical stress relaxation time (R) at point 2 NWB.There was a correlation between body weight and gender on tendon mechanics, with the symptomatic tendons. No significant differences were observed between the control group 1 and control group 2.ConclusionsThe MyotonPRO measured decreased stiffness over a section of the tendon corresponding clinically with Achilles tendinopathy. This may have potential in identifying risk of injury and informing rehabilitation, however further extensive research is required to generate baseline data for specific population groups monitoring variables over time. Age, gender and body mass index appear to have some bearing on the mechanical properties of the tendon but mainly in the tendinopathy group.


2015 ◽  
Vol 10 (3) ◽  
pp. 250-253
Author(s):  
Cengiz Kara ◽  
Ozgu Aydogdu ◽  
Ural Oguz ◽  
Mehmet Giray Sönmez

The aim of this study was to investigate the frequency of nocturnal sperm emissions (NSE) in varicocele patients after varicocele surgery. A total of 127 patients, 96 varicocele (Group 1) and 31 patients with inguinal hernia (Group 2) were included in this study. Mean age, laterality of surgical procedures, spermiogram results, marital status, and postoperative serum hormone levels were noted for all patients. Two groups were compared in terms of Beck depression score (BDS) and anxiety scores (AS). The frequency of NSE and libido changes in the patients during 10 days postoperatively was evaluated. The number of the patients who had NSE and increased libido were significantly higher in the varicocelectomy group when compared with the control group. No significant difference was noted between the groups in terms of BDS, AS, and serum hormone levels. No association was reported between BDS, AS, and serum hormone levels and the presence of NSE in Group 1. The incidence of NSE was higher in younger men. Increased libido was significantly associated with NSE in Group 1. Cord dissection during surgery may be a factor on increased frequency of NSEs in varicocele patients.


Author(s):  
Mehmet Sahap ◽  
Handan Gulec ◽  
Esra ozayar ◽  
Ozlem zdemir ◽  
Merve Kacan ◽  
...  

Purpose : Rocuronium bromide is a painful agent while general anesthesia induction. The aim of the study is to investigate the effects of cox inhibitors as a resque agent against the rocuronium pain Methodology : Sixty patients enrolled for the general anesthesia enrolled in this study. Patients were allocated into two groups (Group 1: Dexkethoprofen group, Group 2: Control group) .Pain was evaluated by during rocuronium injection, patients were scored by a scale showed below. 0;No movement response to injection 1;Mild movement response to injection 2;Hand withdrawal response to injection 3;Arm withdrawal response to injection We also evaluated the pain with 2 questions when the patient was in the recovery room.Question 1.What was the last feeling before you fall into sleep? and question 2. Did you feel any pain on your hand during medication injection for anesthesia? Results:There were differences between the groups in terms of total pain score for example in group 1 there were 16 (53%) patients who did not make any movement during rocuronium injection while there were 22 (73%) patients in group 2.There was significant difference in injection rocuronium bromide pain between group 1: dexkethoprofen group, Group 2: control group in terms of the answer to the second question.Patients felt less pain than the control group. Conclusion:The effect of cox inhibitors on rocuronium pain was seen in our study but check is also effective in reducing pain in vascular width.


Author(s):  
ONER SAKALLIOGLU ◽  
EMRAH GÜLMEZ ◽  
YAVUZ SULTAN SELIM YILDIRIM ◽  
HASAN CETINER ◽  
SERTAC DUZER ◽  
...  

Purpose: The aim of this study to investigate the effect of bromelain-arnica gel combination on periorbital edema and ecchymosis seen after open septorhinoplasty. Methods: Sixty patients who performed open septorhinoplasty with osteotomies were included to the study. These patients were allocated into two groups: in group 1, 30 patients as control and in group 2, 30 patients as study group who were treated with topical bromelain-arnica gel after surgery. Scoring of eyelid edema and peroirbital ecchymosis were evaluated on the first, third and seventh postoperative days using scale of 0 to 4 used by observers. Results: We observed that the administration of topical bromelain-arnica gel after surgery was effective clinically and statistically in decreasing the score of both edema and ecchymosis in open septorhinoplasty with ostetomies. In group 2 patients, periorbital edema and ecchymosis scores were significantly lower compared to control group (p < 0.05). Conclusions: Our results support that topical administration of bromelain and arnica gel combination provided both clinically and statistically significant reduction in periorbital edema and ecchymosis following septorhinoplasty.


2021 ◽  
Vol 11 (6) ◽  
pp. 342-348
Author(s):  
Nishat Tabassum ◽  
Sanghamitra Jena

Study Objective: To know about the effects of cryotherapy and active stretching together and active stretching alone for improving hamstring flexibility in asymptomatic individuals. Method: 22 subjects were participated in study of the age 18 to 40. Subjects were randomly and equally assigned to static stretching and cryotherapy (group 1) and only active stretching (group 2). Subjects in each group were given stretching and cryotherapy for three weeks. Pre and post assessment of ROM was measured by the KEA, SLR and Sit and reach test. Results: After three weeks of intervention there was a significant difference between pre intervention and post intervention score in both the group but in group 1 showed significant difference between KEA, SLR and SRT variables. Conclusion: Subject who received active stretching and cryotherapy showed better improvement than the control group who received only active stretching. Hence it can be concluded that active stretching along with cryotherapy can improve hamstring flexibility than the active stretching only. Key words: Cryotherapy, flexibility, ROM, active stretching.


2020 ◽  
Author(s):  
Hacı Öztürk Şahin ◽  
Mehmet Nuri Duran ◽  
Fatma Sılan ◽  
Ece Sılan ◽  
Duygu Sıddıkoglu ◽  
...  

Abstract Background: Premature ovarian failure is among the most important side effects of chemotherapy during reproductive period. Preserving ovarian function is gradually gaining importance during oncologic treatment. The present study aims to investigate the potential of melatonin to protect from cisplatin-induced ovarian toxicity in rats. Twenty nine female rats were divided to three groups: Saline control group (Group 1), cisplatin group (Group 2), and cisplatin+melatonin group (Group 3). While the rats in Groups 2 and 3 were administered 5 mg/kg single dose of cisplatin via intra-peritoneal (IP) route, the rats in Group 3 were started on melatonin (20 mg/kg IP) before cisplatin administration and continued during 3 consecutive days. Ovaries were removed one week after cisplatin administration in all groups. Blood samples were obtained before the rats were decapited. Histological evaluation, follicle count, and classification were performed. TAp63 mRNA expression was evaluated using mRNA extraction and real-time polymerase chain reaction (PCR) method. Serum estradiol (E2) and anti-mullerian hormone (AMH) values were measured with enzyme immune-assay technology. Results: While primordial follicles were seen to decrease in Group 2 as compared to Group 1 (p:0.023), primordial follicle count was observed to be preserved significantly in melatonin group as compared to Group 2 (p:0.047). Moreover, cisplatin-induced histo-pathological morphology was preserved in favor of normal histology in melatonin group. A significant difference was not observed between groups with regard to mean serum AMH and E2 values (p:0.102 and p:0.411, respectively). While TAp63 gene expression significantly increased in Group 2 as compared to control group (p:0.001), we did not detect a statistically significant difference in cisplatin+melatonin group, although gene expression decreased (p:0.34). Conclusion: We conclude that concurrent administration of melatonin and cisplatin may protect from ovarian damage.


Phlebologie ◽  
2015 ◽  
Vol 44 (01) ◽  
pp. 13-17
Author(s):  
J. Duben ◽  
J. Gatek ◽  
T. Saha ◽  
G. Hnatkova ◽  
L. Hnatek

SummaryIntroduction: During the last years, many endovascular techniques have been developed in order to eliminate not only the reflux in stem veins but in perforating veins and their tributaries, too.Aim: The aim of this study was to use endo -vascular RFITT and the foam sclerotherapy for the occlusion of perforating veins as the prime source of reflux and their tributaries.Material and Methods: The Celon method was used for the thermal treatment. Polydocalon with the concentration 1% and 2% with DSS technique was used for the foam sclerotherapy. The RFITT was accomplished in 127 perforating veins in total. This group was divided into three subgroups. The first one consists of patients where only RFITT was carried out (n= 41), in the second, there were patients with RFITT realized with sclerotherapy during one session (n= 48), in the third, RFITT was completed with sclerotherapy in one month after the RFITT intervention (n= 38). The control group included perforating veins treated only with sclerotherapy (n= 81). The power setting 6W was used on the generator during the RFITT with CelonProSurge micro and 18W for usage of Celon ProCurve probe.Results: The effectiveness of the procedure in the group 1 was 8.8%, in the group two 93.7%, in the group three 92.1% and in the control group 76.5% in one year follow up. There was no significant difference between the effectiveness in groups 1, 2 and 3. The marginal difference was among all three groups with RFITT and the control group. Significant differences were in the parameter of the extinction of visible varicose veins with the reflux from perforators. The extinction was faster in group 3 than in group 2 and in the control group and the slowest was in group 1. The significant difference was observed between groups 2 and 3 compared with group 1 and the margin difference was between groups 2 and 3 compared with the control group. No significant difference was observed between groups 1 and the control group.Conclusions: All procedures are effective. The most important is the combination of RFITT and the sclerotherapy one month after thermal intervention. This is associated with a low risk of recanalization and the fastest extinction of visible varicose veins.


Author(s):  
I Made Dhita Prianthara ◽  
I Made Jawi ◽  
Wahyuddin ◽  
I Nengah Sandi ◽  
I Putu Adiartha Griadhi ◽  
...  

Background: Mechanical low back pain is pain that resulting from poor posture which cause decreased disability and limitation of lumbar range of motion. Purpose: The purpose of this study was to prove mulligan bent leg raise more effective to increase lumbosacral range of motion and decreased disability than slump stretching among tile craftsman with Mechanical low back pain in Darmasaba village. Methods: This research was an experimental study with pre and post test control group design. Sample of this study is tile craftsman with mechanical low back pain with 20 samples aged 30-55. Samples were divided into two groups, which the first group (n = 10) was given Mulligan bent leg raise, while the second group was given slump stretching. Do exercise 3 times a week for 4 weeks. Lumbar range of motion was measured with modified-modified schober test while level of disability was measured with modified oswestry disability index. Result: Paired Sample T-test in Group 1 and Group 2 obtained p=0,000 that showed in each Group 1 and Group 2 there is significant difference. Independent Samples Test of Group 1 and Group 2 showed the result p=0,000 which mean that there is significant difference in increased lumbar range of motion and decreased disability. Conclusion: Mulligan bent leg raise more effective to increase lumbosacral range of motion and decreased disability than slump stretching to tile craftsman with mechanical low back pain in Darmasaba village.


2010 ◽  
Vol 8 (4) ◽  
pp. 414-418 ◽  
Author(s):  
Darcielle Bruna Dias Elias ◽  
Rivelilson Mendes de Freitas ◽  
Romélia Pinheiro Gonçalves ◽  
Hemerson Yuri Ferreira Magalhães ◽  
Jacqueline Holanda de Sousa ◽  
...  

ABSTRACT Objective: To determine the serum levels of malondialdehyde and nitrite in patients with sickle cell anemia treated or not with hydroxyurea in outpatient's setting. Methods: Of the 65 patients with sickle cell anemia selected for the study, 51 were not treated with hydroxyurea (Group 1), 14 made chronic use of hydroxyurea (Group 2) and 20 individuals had no hemoglobinopathies (Control Group). Results: The Control Group had a lower and more homogeneous concentration of malondialdehyde levels as compared to the other groups. The results of Groups 1 and 2 showed increased values of malondialdehyde levels when compared to the Control Group. Considering the values of Groups 1 and 2, there were no significant changes in the malondialdehyde levels. There was no significant difference in the serum levels of nitrite between the groups. Group 2 presented a statistically significant correlation between serum malondialdehyde levels and the clinical variables investigated. In turn, Group 1 showed correlation only with occurrence of three or more vaso-occlusive crises. There was no correlation between nitrite levels and the clinical variables. Conclusion: The results revealed that during the pathogenesis of sickle cell anemia, an increase in lipid peroxidation was observed. On the other hand, no changes in oxidative parameters were detected during treatment with hydroxyurea, probably due to the short period of treatment of the patients studied.


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