44 research outputs found
Characterization of the Role of NKA in the Control of Puberty Onset and Gonadotropin Release in the Female Mouse.
The tachykinin neurokinin B (NKB, Tac2) is critical for proper GnRH release in mammals, however, the role of the other tachykinins, such as substance P (SP) and neurokinin A (NKA) in reproduction, is still not well understood. In this study, we demonstrate that NKA controls the timing of puberty onset (similar to NKB and SP) and stimulates LH release in adulthood through NKB-independent (but kisspeptin-dependent) mechanisms in the presence of sex steroids. Furthermore, this is achieved, at least in part, through the autosynaptic activation of Tac1 neurons, which express NK2R (Tacr2), the receptor for NKA. Conversely, in the absence of sex steroids, as observed in ovariectomy, NKA inhibits LH through a mechanism that requires the presence of functional receptors for NKB and dynorphin (NK3R and KOR, respectively). Moreover, the ability of NKA to modulate LH secretion is absent in Kiss1KO mice, suggesting that its action occurs upstream of Kiss1 neurons. Overall, we demonstrate that NKA signaling is a critical component in the central control of reproduction, by contributing to the indirect regulation of kisspeptin release
Biomarkers of Nutrition for Development (BOND)—Iron Review
This is the fifth in the series of reviews developed as part of the Biomarkers of Nutrition for Development (BOND) program. The BOND Iron Expert Panel (I-EP) reviewed the extant knowledge regarding iron biology, public health implications, and the relative usefulness of currently available biomarkers of iron status from deficiency to overload. Approaches to assessing intake, including bioavailability, are also covered. The report also covers technical and laboratory considerations for the use of available biomarkers of iron status, and concludes with a description of research priorities along with a brief discussion of new biomarkers with potential for use across the spectrum of activities related to the study of iron in human health. The I-EP concluded that current iron biomarkers are reliable for accurately assessing many aspects of iron nutrition. However, a clear distinction is made between the relative strengths of biomarkers to assess hematological consequences of iron deficiency versus other putative functional outcomes, particularly the relationship between maternal and fetal iron status during pregnancy, birth outcomes, and infant cognitive, motor and emotional development. The I-EP also highlighted the importance of considering the confounding effects of inflammation and infection on the interpretation of iron biomarker results, as well as the impact of life stage. Finally, alternative approaches to the evaluation of the risk for nutritional iron overload at the population level are presented, because the currently designated upper limits for the biomarker generally employed (serum ferritin) may not differentiate between true iron overload and the effects of subclinical inflammation
The value of transvaginal ultrasonography in postmenopausal uterine bleeding
Objective: Endometrial carcinoma is the most common gynecologic malignancy and usually present with postmenopausal bleeding. For invastigating postmenopausal bleeding there is a trend to less invasiv procedures without compromising efficacy and safety. Transvaginal ultrasonography was suggested as a first-step procedure in evaluating women with postmenopausal bleeding. The aim of this study to evaluate the diagnostic accuracy of transvaginal ultrasonography and endometrial histopathology findings in patients presenting with postmenopausal bleeding. Material and Methods: This cross-sectional retrospective study was conducted in Bolu İzzet Baysal State Hospital Obstetric and Gynecology outpatient clinic with the complaint of postmenopausal bleeding of 1856 patients' records.within the date of January 2011 - January 2013. Bleeding occurring at least 12 months after amenorhe is defined as postmenaupausal bleeding. A total of 312 patients, who had hystopathologic results, whose endometrial thicknes was measured by TvUSG and who did not use hornonal drug were enrolled in the study. Results: Histological diagnosis of 312 women included in this study; were in atrophy (39.1%) and hyperplasia (simple 18.2% + atypical 6%, respectively) were the most common encountered normal and abnormal endometrial findings. The prevalence of endometrial cancer and atypical hyperplasia was 6.4% (n=20) and 6% (n=19) respectively. Endometrial thickness was significantly higher in the pathologic lesion group than in control (p5 mm is used is a valuable and safe method in evaluation of patients with postmenopausal bleeding. Endometrial curettage is needed in the cases having endometrial thickness above the 5 mm. Copyright © 2013 by Tükiye Klinikleri
postoperative maternal health
To investigate the efficacy of bupivacaine-soaked spongostan in cesarean section wound for postoperative anxiety level, satisfaction and early postpartum depression rate.A total of 121 women, American Society of Anesthesiologists physical status I-II, scheduled to undergo general anesthesia and elective cesarean section were recruited and randomized into a study group (n = 61) or a control group (n = 60). In the spongostan group, bupivacaine-soaked spongostan was placed in the cesarean section wound. The control group did not receive spongostan, but only general postoperative care. Maternal health was assessed using a visual analog scale for satisfaction, a visual analog scale for anxiety and the Edinburgh Postpartum Depression Scale for postpartum depression. Also, first breast-feeding time, first mobilization time and opioid consumption were recorded and compared.The anxiety level of the spongostan group was lower than that of the control group and the difference was statistically significant at all time intervals (1, 6, 12, 18, 24, 30, 36 and 48 h, p < 0.001, respectively). Postpartum depression rate again was significantly lower in the spongostan group both on postoperative day 2 and day 9 (p a parts per thousand currency sign 0.01). All satisfaction scores were significantly higher in the spongostan group than in the control group (p < 0.001). Additionally, first breast-feeding and first mobilization times were significantly shorter and opioid consumption was lower in the spongostan group (p < 0.001).Placement of bupivacaine-soaked spongostan into the cesarean section wound resulted in decreased postoperative anxiety level and postpartum depression rate and increased satisfaction
Age specific prevalence of hepatitis B and hepatitis C among pregnant women in the northwestern region of Turkey.
women in the Turkish population
Purpose: To investigate hepcidin levels in each trimester and their association with other haematological variables and inflammation markers during normal pregnancy among low-risk pregnant women in rural Turkey.Method: The series comprised 103 healthy Turkish primigravida women with a normal pregnancy. Blood samples were obtained at 11-14, 24-28 and 30-34 weeks of gestation. Haemoglobin, hematocrit, red cell indices, white blood cell count, platelet count, iron status indicators (plasma iron, transferrin, ferritin levels and iron binding capacity), serum hepcidin, interleukin-6 and C-reactive protein levels were analysed. The proportions were compared using Pearson's (X)2 test or Friedman's test.Results: The mean serum hepcidin concentrations at 11-14, 24-28 and 30-34 weeks of gestation were as follows: 7.8 +/- 3.4 ng/mL, 8.6 +/- 3.1 ng/mL and 7.3 +/- 3.0 ng/mL, respectively. The mean serum ferritin concentrations with median values at each trimester were 14.2 (11.5), 9.5 (8.8) and 11.2 (9.3), respectively. The mean serum CRP values at each trimester were 5.1 (4.0), 5.5 (4.6) and 6.0 (5.5), respectively. The serum hepcidin levels were not related to iron status or the haemoglobin, IL-6 or C-reactive protein levels.Conclusions: There was no association between serum hepcidin and serum ferritin, IL-6 or CRP concentrations in each trimester among low-risk pregnant women
The role of gel application in decreasing pain during speculum examination and its effects on papanicolaou smear results.
PURPOSE: This study aimed to investigate the effects of water-based gel application in reducing pain or discomfort associated with speculum examination, and compared the presence of unsatisfactory Papanicolaou smear results between gel-applied and control groups. METHODS: In this prospective randomized controlled study, a total of 1,580 patients were analyzed. The subjects were randomized to a gel group and a control group. For the collection of the smear sample, water-based gel was used in the gel group and dry speculum was used in the control group. All patients were asked to score their pain on a numeric pain scale at two time points during the procedure (insertion and opening phase of speculum). Cytopathologists who analyzed the smear cytology were blinded to the study. Pain intensity during speculum examination, as well as unsatisfactory smear results, were analyzed between the groups. RESULTS: The pain scores obtained at two different time points of speculum application were significantly lower in the gel group compared to the control group both in premenopausal and postmenopausal women (p < 0.001). The ratios of unsatisfactory cytopathologic examination results were 1.13 and 1.39% for the gel-applied and control groups, which were not significantly different. CONCLUSION: Lubrication of the outer superior and inferior blade of the plastic vaginal speculum with a small amount of a water-soluble lubricant gel decreases the pain associated with insertion and opening of the vaginal speculum in both premenopausal and postmenopausal women without affecting the quality of the cytology results during the collection of Papanicolaou test specimens
Totally inverted cervix due to a huge prolapsed cervical myoma simulating chronic non-puerperal uterine inversion.
INTRODUCTION: Inversion of the uterus is an extremely rare complication of the non-puerperal period and is commonly caused by benign submucous, especially fundal, leiomyomas. A case of a totally inverted cervix due to a prolapsed huge cervical leiomyoma mimicking chronic non-puerperal uterine inversion in a perimenopausal woman is presented. PRESENTATION OF CASE: A 52-year-old perimenopausal woman was admitted to our clinic with an ulcerated, necrotic, infected and swollen prolapsed mass. Gynecologic history revealed that she was advised myomectomy because of her cervical myoma 2 years ago but she refused to have an operation as she believed that her positive thoughts would shrink the myoma. Presumed diagnosis before surgery was chronic non-puerperal uterine inversion. An intraoperative diagnosis was totally inverted cervix due to a huge cervical leiomyoma. Vaginal hysterectomy without adnexectomy, was performed. CONCLUSION: This is the first case in the literature which a totally inverted cervix due to a prolapsed huge cervical leiomyoma. Cervical fibroids can grow in perimenopausal period and in extremely rare cases can cause total cervical inversion
Comparison of Ganglion Cell and Retinal Nerve Fiber Layer Thickness in Pigment Dispersion Syndrome, Pigmentary Glaucoma, and Healthy Subjects with Spectral-domain OCT.
PURPOSE: To evaluate the ganglion cell complex (GCC) and retinal nerve fiber layer (RNFL) thickness in pigment dispersion syndrome (PDS) and pigmentary glaucoma (PG) with RTVue spectral domain optical coherence tomography (SD-OCT). METHODS: A total of 102 subjects were enrolled: 29 with PDS, 18 with PG, and 55 normal subjects. Full ophthalmic examination including visual field analysis was performed. SD-OCT was used to analyze GCC superior, GCC inferior, and average RNFL thickness. To compare the discrimination capabilities, the areas under the receiver operating characteristic curves were assessed. RESULTS: Superior GCC, inferior GCC, and RNFL thickness values of patients with PG were statistically signicantly lower than those of patients with PDS (p 0.05). CONCLUSIONS: The SD-OCT-derived GCC and RNFL thickness parameters can be useful to discriminate PG from both PDS and normal subjects
The impact of copper-containing and levonorgestrel-releasing intrauterine contraceptives on cervicovaginal cytology and microbiological flora: A prospective study
Objective To compare vaginal microflora and cervical cytology before and after insertion of a copper-containing intrauterine device (Cu-IUD) or a levonorgestrel releasing-intrauterine system (LNG-IUS). Methods Between April 2009 and February 2011, all women requesting insertion of an intrauterine contraceptive for family planning or noncontraceptive indications were enrolled. One hundred and eight Cu-IUDs and 42 LNG-IUSs were placed. Cervical cytological and vaginal microbiological findings before insertion and after 12 months were recorded. Results With regard to cervical cytology, nonspecific inflammatory changes became more frequent (but not significantly so; p = 0.062) after one year of use of a Cu-IUD, whereas their prevalence remained unchanged among women fitted with a LNG-IUS. Colonisation by Candida spp. and mycoplasma infections were diagnosed significantly more often after one year of use of the Cu-IUD than at baseline. During the study period, women wearing a Cu-IUD complained significantly more frequently of vaginal discharge, pelvic pain, and increased menstrual flow. Conclusion Use of a Cu-IUD-but not that of a LNG-IUS-was associated with an alteration of the vaginal flora and showed a trend towards a higher frequency of nonspecific inflammatory changes affecting cervical cytology. © 2014 The European Society of Contraception and Reproductive Health