Effect of mRNA COVID-19 vaccine on ovarian reserve of women of reproductive age.

OBJECTIVES: To evaluate the effect of messenger ribonucleic acid (mRNA) vaccines developed for severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) on the ovarian reserve of women of reproductive age. MATERIAL AND METHODS: This prospective study was conducted between July and December 2022 in a tertiary care hospital affiliated with a university. A total of 117 patients were included in the study. The patients were divided into two groups. The first group (n = 62) consisted of women of reproductive age who received two doses of Pfizer-BioNTech COVID-19 vaccine administered 21 days apart. The control group (n = 55) included women with the same demographic characteristics who did not plan to be vaccinated. Hormonal values and basal antral follicle count were compared between two groups. RESULTS: The mean age of the study group was 26.3 ± 3.6 years, and the mean age of the control group was 25.4 ± 6.2 years (p = 0.332). In the vaccinated group, mean follicular stimulating hormone (FSH) on day 2 was 5.29 ± 2.28; luteinizing hormone (LH): 5.18 ± 1.3; E2: 46.43 ± 24.51; anti-Mullerian hormone (AMH): 4.17 ± 2.1; antral follicle count: 16.23 ± 8.04; right ovarian volume: 6.4 ± 1.7; left ovarian volume: 6.2 ± 2.1. FSH measured at D2 in the control group was 5.68 ± 1.89; LH: 5.22 ± 2.2; E2: 48.41 ± 27.12; AMH: 4.30 ± 1.74; number of antral follicles: 15.64 ± 9.04; right ovarian volume: 6.1 ± 1.8; left ovarian volume: 6.3 ± 1.4. There were no statistically significant differences for FSH, LH, E2, AMH, ovarian volume, and number of antral follicles on the second day of menstruation between the groups. CONCLUSIONS: According to the results of the present study, the mRNA SARS-CoV-2 vaccine does not affect the ovarian reserve of patients.

Lateral suspension with V-NOTES for the treatment of pelvic organ prolapse with the Salman-Ketenci Gencer technique.

INTRODUCTION AND HYPOTHESIS: Pelvic organ prolapse (POP) is a common morbidity and 10-20% of the patients need surgical correction. Sacrocolpopexy or sacrohysteropexy procedures are satisfactory but still difficult. Lateral suspension (LS) as a safe and simple technique has become an alternative technique recently. Vaginal natural orifice transluminal endoscopic surgery (V-NOTES) is also a new modality and LS using V-NOTES has not been performed previously and should be promising. METHODS: This prospective observational pilot study was conducted with a total of 38 women with stage 3 and 4 POP according to the Pelvic Organ Prolapse Quantification grading system (POP-Q). Lateral suspension via V-NOTES was performed with the Salman-Ketenci Gencer technique using a mesh for POP. The preoperative and postoperative 6-month POP-Q stages together with Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire (PISQ-12) scores were recorded and compared. RESULTS: Comparison of the preoperative and postoperative 6-month POP-Q stages of the patients were statistically significant except for the total vaginal length (p<0.01). Compared with the preoperative total and subscale scores of PISQ-12, the postoperative values were considerably improved (p<0.001). CONCLUSIONS: With the Salman-Ketenci Gencer technique not only good anatomical but also good functional results were obtained with V-NOTES. Surgeons may focus on uterine sparing while using the Salman-Ketenci Gencer technique for apical prolapse owing to the higher rate of complications related to the colposuspension and better sexual results after the cervicosuspension.

Uterine-sparing laparoscopic lateral suspension in the treatment of pelvic organ prolapse.

AIM: Apical prolapse is an important component of pelvic organ prolapse. The aim of our study was to investigate the effectiveness of laparoscopic lateral suspension (LLS) surgery, which we performed while sparing the uterus. METHODS: LLS surgery was performed on 62 patients due to apical prolapse, preserving their uterus. The patients' pelvic organ prolapse quantification system (POP-Q) points and sexual function using pelvic organ prolapse/urinary incontinence sexual function questionnaire (PISQ-12) prior to and 12 months following the surgery were compared, and the results were evaluated. RESULTS: The POP-Q points and PISQ-12 scores evaluating sexual function of the patients who underwent LLS were significantly improved compared to pre-operation values (p Ë‚ 0.001). No intraoperative complications were observed in the patients. Recurrence was observed in 6 (9.6%) of 62 total cases in post-operative follow-up. Apical prolapse was seen in two patients (3.2%), and anterior vaginal wall recurrence was observed in one patient (1.6%). Posterior vaginal wall recurrence was seen in three patients (4.8%). Pelvic pain complications were observed in four patients (6.4%) in the postoperative follow-up. Mesh erosion was not observed in any of the cases. It was observed that 5 (38%) of 13 patients with stress urinary incontinence (SUI) had improved SUI complaints after surgery. The mean operation time was 66.3 ± 12.3 min. CONCLUSION: LLS is an effective and safe method for patients with apical prolapse who want to preserve their uterus. LLS can be applied as an alternative to the sacrocolpopexy procedure, which has risks such as potentially serious neurological and life-threatening vascular injury in the sacral region.

Evaluation of Women's Sexual Functions After COVID-19 Infection.

Objectives: Sexual health is an essential component of life quality. In this study, we aim to compare the sexual dysfunction of women who had a history of COVID-19 and those who did not have been infected by COVID-19. Methods: This study was conducted in a tertiary center between May 2020 and December 2020. Our study group included 50 women treated for COVID-19 at home, and control group included 51 women with no history of COVID-19. Female Sexual Functioning Index (FSFI) was used to assess of these patients' sexual dysfunctions. Results: Sexual dysfunction in women with a history of COVID-19 was found to be significantly higher than those with no history of COVID-19. Sexual dysfunction development risk in women with a history of COVID-19 (study group) was 3.4 times higher compared to women with no history of COVID-19 (control group) (p=0.008). In addition, high number of children and low economic status were found to be predictive for sexual dysfunction after recovery (p=0.02 and p=0.024, respectively). Arousal, orgasm, satisfaction subscale scores, and total FSFI scores in women with a history of COVID-19 were significantly lower than those with no history of COVID-19 (p=0.011, p=0.002, p=0.028, and p=0.008, respectively). Conclusion: Sexual dysfunction in the patients with a history of COVID-19 seems to be higher than in women with no history of COVID-19. Increased parity and low economic status are predictive for sexual dysfunction after treatment. There is a need for future studies relating to the effect of the COVID-19 infection in women's sexual functions.

Uterine preserving technique in the treatment of pelvic organ prolapse: Laparoscopic pectopexy.

OBJECTIVE: Apical prolapse constitutes an important part of pelvic organ prolapse. In this study, our aim was to investigate the effectiveness of laparoscopic pectopexy that we made by preserving the uterus in the surgical treatment of apical prolapse. METHODS: A total of 36 patients with apical prolapse who wanted to preserve their uterus underwent laparoscopic rectopexy. Apical prolapse and sexual function of the patients were evaluated preoperatively and 12 months after surgery using the Pelvic Organ Prolapse Quantification (POP-Q) scale and Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire (PISQ-12) sexual questionnaire form. Preoperative medical records and postoperative clinical results were recorded. RESULTS: There were no intraoperative or postoperative complications in the patients who underwent laparoscopic pectopexy. The average duration of surgery was 48.7 ± 9.8 min. Two patients had a recurrence of apical prolapse. In the Aa, Ba, C, and D points in the POP-Q staging, significant changes were observed. Postoperative PISQ-12 scores improved significantly (p < 0.05). CONCLUSION: Uterine-preserving laparoscopic pectopexy is a safe, feasible, and effective method for treating pelvic organ prolapse. It also improved the PISQ-12 and POP-Q scores in POP patients. Laparoscopic pectopexy may increase a surgeon's technical perspective for pelvic organ prolapse surgery.

Endometrial polyps: Is the prediction of spontaneous regression possible?

OBJECTIVE: Endometrial polyps have been considered as a hyperplastic growth of endometrial stromal and glandular tissues. Even asymptomatic polyps in premenopausal women are usually removed as soon as they are diagnosed, although it is still unknown how often endometrial polyps disappear spontaneously. The aim of this study was to investigate the regression rate of endometrial polyps and the possible factors related to their spontaneous regression. METHODS: A total of 197 women with endometrial polyps were treated with operative hysteroscopy between January 2017 and April 2019 at our tertiary center. Of these, 123 patients who preferred conservative follow-up were enrolled in the study. Clinical and pathological data were obtained from electronic medical records. RESULTS: Patients with endometrial polyps were followed up for a median period of 62 days (range 30-360 days). Most women with endometrial polyps (84%) were reported to have gynecologic symptoms. Spontaneous polyp regression was observed in 28 (23%) patients who underwent surgery reevaluation. Patient age (<45 years), premenopausal period, and polyp size (<2 cm) were found to be associated with spontaneous endometrial polyp regression (P<0.05). We also observed more polyp regression in women with abnormal uterine bleeding (P=0.05). Second-look hysteroscopy showed that all postmenopausal women had persistent endometrial polyps. CONCLUSION: Patient age (<45 years), premenopausal period, polyp size (<2 cm), and abnormal uterine bleeding may be associated with spontaneous endometrial polyp regression.

Comparison of Unilateral and Bilateral Sacrospinous Ligament Fixation Using Minimally Invasive Anchorage.

Objective The aim of this study was to determine the effectiveness of a newly developed anchoring system for unilateral sacrospinous ligament fixation (USSLF) and bilateral sacrospinous ligament fixation (BSSLF) procedures. Material and Methods Ninety-three patients with pelvic prolapse who were treated surgically with the Anchorsure System ® between 2013 and 2018 were included in the study. USSLF was performed in 52 patients (group 1), and BSSLF was performed in 41 patients (group 2). Pelvic organ prolapse was assessed preoperatively and 6 months postoperatively. Results There were no significant differences between groups 1 and 2 with regard to age, parity, and demographic characteristics. Anatomical improvement rates were similar, irrespective of the type of SSLF used. No bleeding requiring blood transfusion or organ injuries occurred in any patient. Three patients in the group that received BSSLF developed small asymptomatic cystoceles (grade 1 to 2); there was no recurrence of rectoceles or enteroceles. Mild cystocele was found in 1 patient from the USSLF group. There was no significant difference between the groups with respect to the recurrence of cystocele. Recurrence of vaginal vault prolapse was found in 2 patients from the USSLF group (3.84%). There was no significant difference between the groups with regard to recurrence. Febrile morbidity, clinical outcomes, blood loss, duration of operation, intraoperative complications, and length of hospital stay were similar for the two groups. Conclusions Unilateral and bilateral SSLF techniques produce similar clinical outcomes. USSLF and BSSLF performed using the new anchoring system are safe and effective methods to treat pelvic organ prolapse.

Adenoid basal carcinoma combined with invasive squamous cell carcinoma of uterine cervix: A case report of a 37-year-old woman and literature review.

Adenoid basal carcinoma (ABC) is uncommon malignancy of the uterine cervix and it can be pure or combined with cervical intraepithelial lesions. There were less than 20 cases of ABC combined with invasive squamous carcinoma (mixed type) in English literature. These cases had similar properties as seen at postmenopausal women and diagnosed with abnormal cervical smear findings. Here we present a case of 37-year-old woman who suffered from spotting and received endocervical curettage. The pathological report revealed squamous cell carcinoma (SCC) of the cervix. The patient underwent type 3 radical hysterectomy and bilateral pelvic and para-aortic lymph node dissection. The final pathological report revealed SCC coexisting with ABC. Human papillomavirus (HPV) 16,18 and others (11 types) were negative in both components of the mixed tumor by in situ hybridization detection. Our case was cytokeratin 7 negative, cytokeratin 8 positive and p63 positive which supports the hypothesis that mixed type cervical carcinoma originates from endocervical reserve cells.

Unsuspected Diagnosis of Uterine Leiomyosarcoma after Laparoscopic Myomectomy in an Isolated Bag.

Minimally invasive techniques are generally applied for patients suspected of having benign fibroids if medical treatment is insufficient. On the other hand, sometimes some occult carcinomas of uterus like leiomyosarcomas may be reported for the patients' applied morcellation. This condition is rare but outcomes are clinically significant. Fragmentation of occult sarcoma in the abdominal cavity without isolation bag results in widespread and poor survival. In this article, we report a case of 37-year-old woman suffering from pain due to unexpected leiomyosarcoma. Laparoscopic myomectomy was performed with power morcellation in an isolated bag. Although isolation bag is generally reported to be preventive, recurrence of sarcoma was seen at 5th month of follow-up. Even though morcellation within a bag seems to block wide spreading, dispersion of tumor cannot be stopped and more investigations have to be done.

Effects of Intradermal Sterile Water Injections in Women with Low Back Pain in Labor: A Randomized, Controlled, Clinical Trial.

BACKGROUND: In addition to the pain caused byuterine contractions during labour, continuous and severe back pain is observed in 33% of women. Several pharmacological and nonpharmacological methods are available for managing this pain. Sterile water injection is considered as alternative method for nonpharmacological pain management. AIMS: To assess the satisfaction level and effectiveness of sterile water injection for back pain among women in labour. STUDY DESIGN: Randomized controlled trial. METHODS: A total of 168 term, healthy women with labour pain and severe back pain were randomized into the sterile water injection (study) and dry injection (placebo) groups. Injections were applied to the rhombus of Michaelis in the sacral area. Pain scores were assessed at 10, 30, 60, 120, and 180 min using a visual analogue scale. Additionally, the need for epidural analgesia, Apgar score, mode of delivery, time of delivery, maternal satisfaction, and breastfeeding score were assessed. RESULTS: The mean back pain scores at 30 min after injections were significantly lower in the study group (study group: 31.66±11.38; placebo: 75±18.26, p<0.01). The mean decrease in pain scores after 30 min according to baseline was significantly higher in the study group (study group: 54.82±7.81; placebo: 13.33±12.05, p<0.01). The need for epidural analgesia, time of delivery, mode of delivery, and Apgar and breastfeeding scores were similar in both groups. Maternal satisfaction from the analgesic effect was significantly higher in the study group (study group: 84.5%; placebo: 35.7%, p<0.01). CONCLUSION: The application of sterile water injection is effective for relieving back pain in the first stage of labour and has a sufficient satisfaction level among women.

The effect of metamizole on ischemia/reperfusion injury in the rat ovary: An analysis of biochemistry, molecular gene expression, and histopathology.

OBJECTIVES: In this study, we investigated the effect of metamizole on ischemia/reperfusion (I/R) injury an analysis of biochemistry, molecular gene expression, and histopathology in the rat ovary of female albino Wistar rats. MATERIALS AND METHODS: Animals were divided into four groups; control group with induced ischemia-reperfusion (IRC), ischemia-reperfusion +100 mg/kg metamizole sodium (MS) (IRM-100), ischemia-reperfusion +200 mg/kg MS (IRM-200), and healthy group applied sham operation (SG). RESULTS: Myeloperoxidase (MPO) activity and gene expression increased significantly in IRC and IRM-100 group rat ovarian tissue compared with the SG group (P < 0.0001). However, MPO activity and gene expression in IRM-200 group ovarian tissue decreased significantly compared with the IRC and IRM-100 groups (P < 0.0001). Histopathologically, pronounced congestion, dilated vessels, hemorrhage, edema, degenerative cells, and neutrophil migration and adhesion to the endothelium were observed in the IRC and IRM-100 group ovarian tissues. A small number of congested dilated vessels, mild congestion, and edema were observed in the IRM-200 group, but no neutrophil migration and adhesion to the endothelium or degenerative cells. CONCLUSIONS: At 200 mg/kg dose metamizole prevented ovarian injury induced with I/R. This data show that metamizole can be used in the ovarian I/R injury treatment.

Controlled reperfusion for different durations in the treatment of ischemia-reperfusion injury of the rat ovary: evaluation of biochemical features, molecular gene expression, and histopathology.

High numbers of proinflammatory cells (PMNLs), which are carried by the blood to ischemic tissue during reperfusion, are considered responsible for inducing the inflammatory response that occurs in ischemia-reperfusion (I/R) injury. Our objective was to determine the controlled reperfusion (CR) interval duration (CRID) that would minimize the injury caused by the PMNLs that infiltrate ischemic tissue. Animal groups were divided into the following groups: Sham group, ovarian I/R group (OIR), and ovarian ischemia controlled-reperfusion groups OICR-1, OICR-2, OICR-3, OICR-4, OICR-5, OICR-6, which had their ovarian artery opened and then closed for 10, 8, 6, 4, 2, or 1 s, respectively. The results show that the COX-2 activity and the gene expression decreased while the COX-1 activity and the gene expression were found to be increased in parallel to the shortening of the period in CRID. From the histopathological examinations, the findings of hemorrhage, edema, congested vascular structures, degenerated cells, and migration and adhesion of PMNLs were scaled as follows: Sham group < OICR-6 < OICR-5 < OICR-4 < OICR-3 < OICR-2 < OICR-1. The results from the histopathological assessments were consistent with the molecular and biochemical findings. In conclusion, our findings suggest that increased COX-2 activity plays a role in I/R injury of the rat ovary, and that controlled reperfusion for 3, 2, or 1 s following 2 h of ischemia may attenuate the effects of I/R injury.

Retrospective analysis of factors that affect the success of single-dose methotrexate treatment in ectopic pregnancy.

OBJECTIVE: Detection of factors that affect the success of single-dose methotrexate treatment in ectopic pregnancy. MATERIALS AND METHODS: We investigated 99 patients who had been treated with single-dose methotrexate for ectopic pregnancy in our clinic between January 2009 and June 2014. Demographic, clinical, and laboratory results of possible factors that affect treatment success were retrospectively analyzed. Successfully and unsuccessfully treated patients were compared based on their pre-treatment results. RESULTS: The success rate of single-dose methotrexate treatment was found to be 70.7%. No significant difference was found between succesfully and unsuccessfully treated patients before treatment in terms of factors such as gestational weeks, mass size, presence of yolk sac, and presence of free fluid (p=0.224, p=0.201, p=0.200, p=0.200). Serum ß-hCG values in patients whose treatment was unsuccessful was found to be higher compared with the successfully treated group (mean ß-hCG value of unsuccessful group: 4412±3501 mIU/mL; mean ß-hCG value of successful group: 1079±942 mIU/mL; p<0.001). CONCLUSION: Single-dose methotrexate treatment is an effective and reliable method in the treatment of ectopic pregnancy. Elevation of serum ß-hCG value stands as the main prognostic factor that affects the success of single-dose methotrexate treatment.

Exogenous ATP administration prevents ischemia/reperfusion-induced oxidative stress and tissue injury by modulation of hypoxanthine metabolic pathway in rat ovary / Administração exógena de ATP impede isquemia/induzidas por reperfusão de estresse oxidativo de tecidos e lesões pela modulação da hipoxantina via metabólica em ovários de ratos

In this study, xanthine oxidase (XO), malondialdehyde (MDA), myeloperoxidase (MPO) and glutathione (GSH) levels in the ovarian tissues of rats during the development of ischemia and postischemia-induced reperfusion were investigated, and the effect of ATP on ischemia-reperfusion (I/R) damage was biochemically and histopathologically examined. The results of the biochemical analyses demonstrated that ATP significantly reduced the level of XO and MDA and increased the amount of GSH in both ischemia and I/R-applied ovarian tissue at the doses administered. Furthermore, ATP significantly suppressed the increase in MPO activity that occurred following the application of post ischemia reperfusion in the ovarian tissue. The biochemical results obtained in the present study coincide with the histological findings. The severity of the pathological findings, such as dilatation, congestion, haemorrhage, oedema and polymorphonuclear nuclear leukocytes (PMNLs), increased in parallel with the increase observed in the products of XO metabolism. In conclusion, exogenously applied ATP prevented I/R damage by reducing the formation of XO in ischemic ovarian tissue.

Neste estudo, a xantina oxidase (XO), o malondialdeído (MDA), mieloperoxidase ( MPO ) e glutationa ( GSH) nos tecidos do ovário de ratos, durante o desenvolvimento de isquemia e reperfusão induzida por pós-isquemia foi investigada, e o efeito de ATP em isquemia e reperfusão (I/R). O dano foi verificado por provas bioquímicas e por histopatologia. Os resultados das análises bioquímicas mostraram que o ATP reduziu significativamente o nível de XO e MDA e aumentou a quantidade de GSH em ambas as isquemia e no tecido do ovário de I / R - aplicado nas doses administradas. Além disso, o ATP suprimiu significativamente o aumento na atividade de MPO que ocorreu na sequência da aplicação de pós-isquemia reperfusão no tecido ovariano. Os resultados bioquímicos obtidos no presente estudo coincidem com os achados histológicos. A gravidade dos achados patológicos, como a dilatação, congestão, hemorragia, edema e polimorfonucleares leucócitos nucleares (PMNLs), aumentou em paralelo com o aumento observado nos produtos do metabolismo XO. Em conclusão, aplicando exogenamente ATP impedido de I/R, houve danos pela redução da formação de tecido de ovário de XO na isquemia.

Benefits of the antioxidant and anti-inflammatory activity of etoricoxib in the prevention of ovarian ischemia/reperfusion injury induced experimentally in rats.

AIM: This study is a biochemical investigation of the effect of etoricoxib, a selective cyclooxygenase (COX)-2 inhibitor, on ischemia/reperfusion (I/R) injury experimentally induced in rat ovaries. METHODS: Experimental animals were divided into four groups: (i) ovarian ischemia/reperfusion (IRG); (ii) 30 mg/kg etoricoxib + ovarian ischemia/reperfusion (EIRG-30); (iii) 60 mg/kg etoricoxib + ovarian ischemia/reperfusion (EIRG-60); and (iv) a sham operation (SG) control group. RESULTS: The results showed levels of malondialdehyde in the IRG, EIRG-30, EIRG-60 and SG group ovarian tissue of 20.2 ± 3.4, 11.2 ± 3.2, 5.5 ± 1.9 and 3.8 ± 1.5 µmol/g protein, respectively. Myeloperoxidase activity for these groups was 24.2 ± 6.7, 13 ± 2.4, 4 ± 1.8 and 3.5 ± 1.9 U/g protein, and total glutathione levels were 1.6 ± 0.8, 4.5 ± 1.9, 6.5 ± 1.9 and 7.5 ± 2.4 nmol/g protein, respectively. COX-1 activity in IRG, EIRG-30, EIRG-60 and SG group rat ovarian tissue was 5.0 ± 2.8, 12.2 ± 2.4, 16.7 ± 2.8 and 17.5 ± 4.7 U/mg protein, and COX-2 activity was 18.3 ± 2.7, 3.5 ± 1, 1.8 ± 0.7 and 0.7 ± 0.3 U/mg protein, respectively. CONCLUSION: Etoricoxib prevented oxidative damage induced with I/R in rat ovarian tissue. This property of etoricoxib suggests that it can be clinically beneficial in the prevention of damage that may arise with reperfusion by detorsion for the protection of the ovaries against torsion.

Biological and histopathological investigations of moclobemide on injured ovarian tissue following induction of ischemia-reperfusion in rats.

BACKGROUND: The effects of moclobemide on damaged ovarian tissue induced by ischemia- reperfusion and damaged contralateral ovarian tissue were investigated in rats, biochemically and histologically. MATERIALS AND METHODS: In this experimental study, 40 rats were equally divided into four groups: 10 mg/kg moclobemide, 20 mg/kg moclobemide, ischemia/reperfusion control, and intact control groups. A 2-2.5-cm-long vertical incision was made in the lower abdomen of each rat in order to reach the ovaries, after which a vascular clip was placed on the lower side of the right ovary of each animal in the two treatment groups and the ischemia-reperfusion control group, but not in the healthy (intact control) animal group. The purpose of this procedure was to create ischemia over the course of three hours, then the clips were unclamped to provide reperfusion for the next two hours. At the end of the two hours of reperfusion, all the animals were killed by high-dose anaesthesia and their ovaries were taken and subjected to histological and biochemical (malondialdehyde, nitric oxide, glutathione) studies. RESULTS: The obtained results showed that moclobemide suppressed nitric oxide and malondialdehyde production in the ischemia-reperfusion damage area, and prevented the decrease in endogenous antioxidant levels (glutathione) in the rat ovarian tissue. Moclobemide also prevented infiltration of leukocytes to the ovarian tissue. These results showed that moclobemide protected ovarian tissue against ischemiareperfusion injury. CONCLUSION: This study shows that moclobemide represses malondialdehyde and nitric oxide production in the rat ovarian tissue subjected to ischemia-reperfusion injury and keeps the endogenous antioxidant glutathione level from decreasing. Moclobemide also inhibits leukocytic migration into ovarian tissue following ischemia-reperfusion injury. From these results, it is suggested that moclobemide can be used in the treatment of ovarian ischemia-reperfusion injury.

The effect of metyrosine/prednisolone combination to oophorectomy-induced osteoporosis.

BACKGROUND: Osteoporosis is a chronic disease characterized by a decrease in bone mineral density (BMD) and corruption of the microarchitectural structure of bone tissue. OBJECTIVE: It was investigated whether methylprednisolone had a favorable effect on osteoporotic bone tissue in Oophorectomy induced osteoporotic rats whose endogenous adrenaline levels are suppressed with metyrosine. MATERIALS AND METHODS: Bone Mineral Density, number of osteoblast-osteoclast, bone osteocalcin levels and alkaline phosphatase (ALP) measurements were performed. Obtained results were compared with that of alendronate. RESULTS: Oophorectomy induced osteoporosis was exacerbated by methylprednisolone. Alentronate prevented ovariectomised induced osteoporosis, but it couldn't prevent methylprednisolone +ovariectomised induced osteoporosis in rats. CONCLUSION: Combined treatment with methylprednisolon and metyrosine was the best treatment for preventing osteoporosis but metyrosine alone couldn't prevent osteoporosis in ovariectomised rats.

Investigation of the effects of the chronic administration of some antihypertensive drugs on enzymatic and non-enzymatic oxidant/antioxidant parameters in rat ovarian tissue.

OBJECTIVE: In this study, effects of chronic antihypertensive drug (clonidine, methyldopa, amlodipine, ramipril, and rilmenidine) treatment on antioxidant-oxidant parameters were investigated in rat ovarian tissue. STUDY DESIGN: Chronic drug administration for 30 days and at the end, biochemical examinations (total glutathione (tGSH), glutathione peroxidase (GPO), glutathione reductase (GR), glutathione s-transferase (GST), superoxide dismutase (SOD), nitric oxide (NO), catalase (CAT), malondialdehyde (MDA), and myeloperoxidase (MPO) analyses) were performed. RESULTS: The levels of glutathione (GSH) and NO, and the activities of GPO, GR, GST, SOD, and CAT were measured the lowest in ramiprile group. Also in ramiprile group, the level of MDA and the activity of MPO was the highest. CONCLUSION: We divided the drugs into four groups according to their biochemical side effect potentials in ovarian tissue: (I) Drugs which have no clear negative effect on ovarian tissue: clonidine, rilmenidine; (II) Drugs which have mild negative effect on ovarian tissue: methyldopa; (III) Drugs which have moderate negative effect on ovarian tissue: amlodipine; (IV) Drugs which have severe negative effect on ovarian tissue: ramipril. These data might be useful in the selection of the least toxic antihypertensive drug in pregnant and/or normal females.

Investigation of the relationship of some antihypertensive drugs with oxidant/antioxidant parameters and DNA damage on rat uterus tissue.

BACKGROUND: In this study, we investigated the effects of treatment with chronic antihypertensive drugs (clonidine, methyldopa, amlodipine, ramipril and rilmenidine) on oxidant-antioxidant parameters and toxic effects on DNA in rat uterus tissue. In addition, uterus tissues were examined histopathologically. MATERIALS AND METHODS: A total of 36 albino Wistar rats were divided into the following six groups: 0.075 mg/kg clonidine group; 100 mg/kg methyldopa group; 2 mg/kg amlodipine group; 2.5 mg/kg ramipril group; 0.5 mg/kg rilmenidine group; and the healthy group. Rats underwent chronic drug administration for 30 days and at the end, biochemical and histopathological examinations were performed. All data were subjected to one-way ANOVA test. RESULTS: We divided these drugs into the following three groups according to their effects on rat uteri: (I) mild negative effects (clonidine), (II) moderate negative effects (rilmenidine, methyldopa) and (III) drugs which had severe negative effects (amlodipine, ramipril). CONCLUSION: These data may help with selection of antihypertensive drugs, in order to determine which drugs have the lowest toxicity in pregnant and non-pregnant (pre-pregnancy) women.

Role of adrenal gland hormones in the anti-inflammatory effect mechanism of tamoxifen, a partial antagonist for oestrogen receptors, and relation with COX levels.

OBJECTIVE: There is limited study about anti-inflammatory effect mechanism of tamoxifen. We aimed to investigate the anti-inflammatory activity of tamoxifen to see whether adrenal gland hormones have roles in the anti-inflammatory effect mechanism of tamoxifen and to evaluate the relationship between anti-inflammatory activity and cyclooxygenase (COX) level. STUDY DESIGN: Effects of tamoxifen, indomethacin and prednisolon on carrageenan-induced inflammatory paw oedema were investigated in intact and adrenalectomised rats. Also blood adrenalin and corticosterone levels and paw tissue COX levels determined biochemically. RESULTS: Tamoxifen (5, 10 and 20 mg/kg), indomethacin (5, 10 and 20 mg/kg) and prednisolon (5 mg/kg) produced anti-inflammatory effects in intact rats, however, they could not in adrenalectomized rats. 20 mg/kg tamoxifen produced low anti-inflammatory effect. Tamoxifen and indomethacin decreased COX-2 levels in intact rats, but not in adrenalectomised rats. Tamoxifen produced anti-inflammatory effects by decreasing adrenalin levels, as indomethacin does. 20 mg/kg tamoxifen decreased corticosterone levels. CONCLUSIONS: Tamoxifen was seen to suppress carrageenan-induced inflammation significantly. The dose of tamoxifen that decreases adrenalin levels maximally and decreases corticosterone levels minimally was found to produce the most potent anti-inflammatory effect. The reason why indomethacin is more potent in high doses may be that it decreases adrenalin levels strongly at these doses, without decreasing corticosterone levels.