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1.
Endocrinology ; 160(10): 2453-2463, 2019 10 01.
Article in English | MEDLINE | ID: mdl-31504389

ABSTRACT

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.


Subject(s)
Gonadotropins/metabolism , Neurokinin A/metabolism , Animals , Female , Kisspeptins , Mice , Mice, Inbred C57BL , Mice, Knockout , Neurokinin A/genetics , Neurokinin B/genetics , Neurokinin B/metabolism , Protein Precursors , Receptors, Neurokinin-2/genetics , Receptors, Neurokinin-2/metabolism , Sexual Maturation , Substance P/genetics , Substance P/metabolism , Tachykinins
2.
J Obstet Gynaecol ; 38(2): 252-256, 2018 Feb.
Article in English | MEDLINE | ID: mdl-28903631

ABSTRACT

The aim of this study was to investigate whether overactive bladder (OAB) influences hip fractures in climacteric women by comparing the frequency of OAB and nocturia symptoms in patients with hip fractures and their age-matched controls in pre-fracture period. A total of 30 climacteric patients with a history of hip fracture were compared to a control group of 51 women in terms of OAB, nocturia and nocturia-QoL. A questionnaire composed of structured questions and Turkish validated versions of the specific questionnaires for OAB, OAB-Quality of Life (OAB-q) and nocturia-QoL was directed to the two groups. We did not detect statistically relevant differences between the groups for the presence or severity of OAB and OAB-q (p > .05). However, Nocturia-QoL was worse in the group with hip fracture (p = .022). Overactive bladder has no contribution to the overall risk of hip fracture, whereas, the severity of nocturia seems to play a role as a risk factor in the formation of hip fracture. Impact statement What is already known on this subject: Hip fracture is associated with high morbidity, mortality and the cost. Prevention of hip fracture is a high priority for the patients, physicians and the public health. Several studies and consensus opinions have investigated the risk factors for the hip fractures. What the results of this study add: Although urinary symptoms were not evaluated in previous studies as a risk factor, desire of urination makes people stand up and move to their toilet, and may put them in a hurry if it is sudden and uncontrollable one. Therefore, we hypothesised that overactive bladder (OAB) and nocturia may be a risk factor in the formation of hip fractures. Our study showed that Nocturia Quality of Life is worse in patients with the hip fracture. Therefore, overactive bladder may not have a role on the overall risk of hip fracture, but the severity of nocturia seems as a risk factor in the fracture process. What the implications are of these findings for clinical practice and/or further research: The getting up from the bed would probably be harder than getting up from a chair in elderly, and life style modifications such as illumination bedroom and organisation of living place may be helpful to minimise the risks.


Subject(s)
Hip Fractures/etiology , Nocturia/complications , Urinary Bladder, Overactive/complications , Aged , Aged, 80 and over , Case-Control Studies , Climacteric , Female , Humans , Nocturia/psychology , Prospective Studies , Risk Factors , Severity of Illness Index , Surveys and Questionnaires , Urinary Bladder, Overactive/psychology
3.
Int Urogynecol J ; 27(10): 1583-9, 2016 Oct.
Article in English | MEDLINE | ID: mdl-27038992

ABSTRACT

INTRODUCTION AND HYPOTHESIS: Steroid soaking may decrease mesh-triggered inflammatory reaction in tissue. We aimed to investigate the tissue reaction to a steroid-soaked mesh material and an unsoaked mesh material in the rat model. METHODS: Neutral and steroid-soaked type I macroporous polypropylene (PP) monofilament and polyvinylidene fluoride (PVF) mesh materials were implanted on the rectus abdominis muscle of 20 mature Wistar albino rats. Animals were divided into four groups: PP mesh with steroid (PP-S), PP mesh without steroid, PVF mesh with steroid (PVF-S), and PVF mesh without steroid. The rats were killed after 12 weeks, and histologic, immunohistochemical and electron microscopic examinations were performed. For immunohistochemical analysis, polyclonal rabbit anti-mouse CD3, rabbit anti-mouse CD68, rabbit anti-mouse CD15, and rabbit anti-mouse CD34 antibodies were used for the detection of lymphocytes, macrophages, polymorphonuclear leukocyte foreign body giant cells, and fibromyocyte stem cells, respectively. Samples were stained with hematoxylin and eosin for the histologic evaluation of inflammation and with Masson's trichrome stain for the evaluation of collagen deposition. Pore size and mesh ultrastructure were evaluated by electron microscopy. RESULTS: Expression of CD3 was lower in the PVF, PVF-S and PP-S groups, and expression of CD34 was higher in the PVF-S and PP-S groups than in the PP groups (p < 0.05). Collagen deposition was lower in the PVF, PVF-S and PP-S groups (p < 0.05). Histologically, the intensity of inflammation was lower in the PVF-S and PP-S groups than in the PP mesh group (p < 0.05). There were no significant differences among the groups in terms of pore size and mesh ultrastructure on electron microscopic examination (p > 0.05). CONCLUSIONS: PVF mesh induces less inflammation than PP mesh, and in both mesh types steroid soaking further decreases inflammation without changing the pore size.


Subject(s)
Foreign-Body Reaction/prevention & control , Polypropylenes/adverse effects , Polyvinyls/adverse effects , Surgical Mesh/adverse effects , Abdominal Wall , Animals , Collagen/metabolism , Female , Foreign-Body Reaction/diagnostic imaging , Foreign-Body Reaction/etiology , Humans , Materials Testing , Rats , Rats, Wistar , Steroids
4.
Taiwan J Obstet Gynecol ; 55(1): 60-3, 2016 Feb.
Article in English | MEDLINE | ID: mdl-26927250

ABSTRACT

OBJECTIVE: The aim of this study was to investigate factors associated with thrombosis that may contribute to recurrent pregnancy loss (habitual abortion), specifically differences in serum levels of platelet-activating factor and thrombin-activatable fibrinolysis inhibitor (carboxypeptidase B2) between women with a history of recurrent miscarriage and those with no recurrent miscarriage history. MATERIALS AND METHODS: A case-controlled, prospective study design was adopted to compare women with a history of two or more first-trimester miscarriages (n = 42) with those with no history of recurrent miscarriage (n = 36). Participants were recruited from the Department of Obstetrics and Gynecology of Turgut Ozal University Hospital. Platelet-activating factor and thrombin-activatable fibrinolysis inhibitor levels in serum samples were measured by an enzyme-linked immunosorbent assay. RESULTS: Platelet-activating factor levels were significantly (p = 0.018) higher in the recurrent miscarriage group. There was no difference in levels of thrombin-activatable fibrinolysis inhibitor expression between the groups. CONCLUSION: Platelet-activating factor is significantly higher in serum of patients with a history of recurrent miscarriage than in those without such a history, with potential implications for placental function and fetal growth, which could be relevant to miscarriage recurrence. Larger studies are indicated to further examine these findings.


Subject(s)
Abortion, Habitual/blood , Carboxypeptidase B2/blood , Platelet Activating Factor/metabolism , Adult , Case-Control Studies , Female , Humans , Prospective Studies
5.
Fertil Res Pract ; 2: 3, 2016.
Article in English | MEDLINE | ID: mdl-28620530

ABSTRACT

BACKGROUND: Primary amenorrhea usually result from a genetic or anatomic abnormality. We present the first reported patient with the absence of endometrium and lumen in a small bicornuate uterus in a patient with primary amenorrhea. CASE PRESENTATION: A 41-year-old woman presented for evaluation of primary amenorrhea and infertility. She did develop normal secondary sexual characteristics but never had menses. Physical examination, hormone analyses, and karyotype analysis were normal. Transvaginal ultrasonography revealed a small uterus with absent endometrial stripe. Ovaries were normal in size. Pathology from hysterectomy for abnormal Pap smears revealed a hypoplastic bicornuate uterus with absence of lumen and absent endometrium. DNA analyses for mutations in the coding sequences of three members of HOXA gene family was performed, but no variants in the coding sequence of these genes were found. These findings support the hypothesis that mutations in the coding sequence of HOXA10, HOXA11, and HOXA13 are not responsible for congenital endometrial absence with bicornuate hypoplastic uterus. CONCLUSIONS: Congenital absence of the endometrium is an uncommon etiology for primary amenorrhea, and nonvisualization of the endometrial stripe on ultrasound imaging in association with primary amenorrhea should raise suspicion of this rare disorder in this case.

6.
Endocrinology ; 156(6): 2313-22, 2015 Jun.
Article in English | MEDLINE | ID: mdl-25856429

ABSTRACT

Puberty is a tightly regulated process that leads to reproductive capacity. Kiss1 neurons are crucial in this process by stimulating GnRH, yet how Kiss1 neurons are regulated remains unknown. Substance P (SP), an important neuropeptide in pain perception, induces gonadotropin release in adult mice in a kisspeptin-dependent manner. Here, we assessed whether SP, through binding to its receptor NK1R (neurokinin 1 receptor), participates in the timing of puberty onset and fertility in the mouse. We observed that 1) selective NK1R agonists induce gonadotropin release in prepubertal females; 2) the expression of Tac1 (encoding SP) and Tacr1 (NK1R) in the arcuate nucleus is maximal before puberty, suggesting increased SP tone; 3) repeated exposure to NK1R agonists prepubertally advances puberty onset; and 4) female Tac1(-/-) mice display delayed puberty; moreover, 5) SP deficiency leads to subfertility in females, showing fewer corpora lutea and antral follicles and leading to decreased litter size. Thus, our findings support a role for SP in the stimulation of gonadotropins before puberty, acting via Kiss1 neurons to stimulate GnRH release, and its involvement in the attainment of full reproductive capabilities in female mice.


Subject(s)
Fertility/drug effects , Sexual Maturation/drug effects , Substance P/metabolism , Animals , Female , Fertility/genetics , Gonadotropins/metabolism , Mice , Peptide Fragments/pharmacology , Puberty/drug effects , Puberty/genetics , Receptors, Neurokinin-1/agonists , Receptors, Neurokinin-1/metabolism , Sexual Maturation/genetics , Substance P/analogs & derivatives , Substance P/genetics , Substance P/pharmacology
7.
Gynecol Obstet Invest ; 80(4): 223-7, 2015.
Article in English | MEDLINE | ID: mdl-25722060

ABSTRACT

BACKGROUND: Pentraxin 3 (PTX3) is a novel vascular inflammatory marker which increases in vascular events such as diabetes mellitus. The aim of this study was to investigate the relationship between serum PTX3 levels and gestational diabetes mellitus (GDM). METHODS: This prospective observational study was comprised of 88 pregnant women with singleton pregnancies. The subjects were classified into 3 groups according to their response to a 50-gram glucose challenge test (GCT) and a 100-gram oral glucose tolerance test: control group (n = 28), impaired glucose tolerance group (n = 30), and GDM group (n = 30). Serum PTX3 levels were measured to examine the relationship between GDM and GCT values. RESULTS: Significant differences in PTX3 levels were observed among the 3 groups in the sample (F = 7.598; p = 0.001). The mean PTX3 value was found to be significantly higher in the GDM group (3.17 ± 1.16 ng/ml) than in the control group (2.20 ± 0.83 ng/ml; p = 0.001). A significant positive correlation between PTX3 and GCT values was detected (r = 0.289; p = 0.008). CONCLUSION: Maternal serum PTX3 levels were found to be significantly related to high blood glucose levels. This may be an indicator of vascular pathology in GDM around the time of an oral glucose tolerance test.


Subject(s)
C-Reactive Protein/metabolism , Diabetes, Gestational/blood , Serum Amyloid P-Component/metabolism , Adult , Biomarkers/blood , Female , Glucose Tolerance Test , Humans , Pregnancy , Young Adult
8.
Platelets ; 26(7): 657-60, 2015.
Article in English | MEDLINE | ID: mdl-25350688

ABSTRACT

Mean platelet volume (MPV) is a risk factor for cardiovascular complications, cerebrovascular disorders, and low-grade inflammatory conditions prone to arterial and venous thromboses. Cesarean delivery is the most important risk factor for pulmonary embolism, stroke, and intracranial venous thrombosis. The hypothesis is that increase in the prevalence of cesarean section and high MPV may be associated with cardiovascular complications such as stroke along with intracranial complications in addition to known systemic and surgical complications. In this study, platelet counts and MPV for postpartum women who delivered by cesarean section and normal vaginal parturition are compared. The subjects were divided in two groups, one was study group consisting of 118 patients giving birth by cesarean section and the other was the control group consisting 94 patients giving birth by normal vaginal parturition. Peripheral venous blood samples in EDTA tubes were collected from all the subjects 1 week before and after the delivery for their prenatal and postpartum periods, respectively. The values were compared between the groups and also before and after the delivery. In the cesarean group, while the MPV level was 8.60 (1.64) fl in the prenatal period, it increased to 9.10 (2.00) fl in the postnatal period (p < 0.001). Group effect, time effect (independent from group effect), and group*time interaction effect were statistically significant for MPV variable (p = 0.032, p < 0.001, and p = 0.012, respectively). This study concluded that MPV, along with several other factors, may be used as a prognostic, independent, and therapeutic marker in patients who are inclined to thrombotic events after cesarean section.


Subject(s)
Cesarean Section , Mean Platelet Volume , Adult , Cesarean Section/adverse effects , Erythrocyte Indices , Female , Humans , Platelet Count , Pregnancy , Pulmonary Embolism/etiology , Risk Factors , Thrombosis/etiology , Young Adult
9.
Endocrinology ; 156(2): 627-37, 2015 Feb.
Article in English | MEDLINE | ID: mdl-25422875

ABSTRACT

Tachykinins are comprised of the family of related peptides, substance P (SP), neurokinin A (NKA), and neurokinin B (NKB). NKB has emerged as regulator of kisspeptin release in the arcuate nucleus (ARC), whereas the roles of SP and NKA in reproduction remain unknown. This work explores the roles of SP and NKA in the central regulation of GnRH release. First, central infusion of specific agonists for the receptors of SP (neurokinin receptor 1, NK1R), NKA (NK2R) and NKB (NK3R) each induced gonadotropin release in adult male and ovariectomized, estradiol-replaced female mice, which was absent in Kiss1r(-/-) mice, indicating a kisspeptin-dependent action. The NK2R agonist, however, decreased LH release in ovariectomized-sham replaced females, as documented for NK3R agonists but in contrast to the NK1R agonist, which further increased LH release. Second, Tac1 (encoding SP and NKA) expression in the ARC and ventromedial nucleus was inhibited by circulating estradiol but did not colocalize with Kiss1 mRNA. Third, about half of isolated ARC Kiss1 neurons expressed Tacr1 (NK1R) and 100% Tacr3 (NK3R); for anteroventral-periventricular Kiss1 neurons and GnRH neurons, approximately one-fourth expressed Tacr1 and one-tenth Tacr3; Tacr2 (NK2R) expression was absent in all cases. Overall, these results identify a potent regulation of gonadotropin release by the SP/NK1R and NKA/NK2R systems in the presence of kisspeptin-Kiss1r signaling, indicating that they may, along with NKB/NK3R, control GnRH release, at least in part through actions on Kiss1 neurons.


Subject(s)
Hypothalamus/metabolism , Neurokinin A/metabolism , Reproduction , Substance P/metabolism , Animals , Estradiol/metabolism , Female , Follicle Stimulating Hormone/metabolism , Gonadotropin-Releasing Hormone/metabolism , Kisspeptins/metabolism , Luteinizing Hormone/metabolism , Male , Mice, Inbred C57BL , Mice, Knockout , Receptors, G-Protein-Coupled/metabolism , Receptors, Kisspeptin-1 , Receptors, Tachykinin/agonists
10.
Hypertens Pregnancy ; 34(2): 145-52, 2015 May.
Article in English | MEDLINE | ID: mdl-25548972

ABSTRACT

OBJECTIVE: The objective of the study was to compare pro-hepcidin, hemoglobin (Hb) concentration, hematocrit (Hct), C-reactive protein (CRP), IL-6 and iron status parameters in preeclamptic (PE) and healthy pregnant women, and to examine the relationship between serum pro-hepcidin levels and iron parameters of preeclampsia (PE). METHODS: In a prospective controlled study, we collected serum from women with normal pregnancy (n = 37) and from women with PE (n = 30) at the Department of Obstetrics and Gynecology at Turgut Ozal University between February 2010 and January 2013. Pro-hepcidin, hemoglobin (Hb) concentration, hematocrit (Hct), CRP, IL-6 and iron status parameters were measured in all patients and compared between groups. RESULTS: Levels of serum prohepcidin in PE and control groups were similar and amount 69.4 ± 19.7 and 71.9 ± 22.1 ng/ml, respectively. The difference was not statistically significant (p: 0.694). On the other hand, the study group had a statistically lower iron binding capacity (IBC), total iron binding capacity, transferin, total protein, albumin levels (p < 0.05). No significant differences were found among prohepcidin, Hb concentration, Hct, iron, ferritin, IL-6, urea and creatine in both the groups. CONCLUSION: In pregnancies complicated by PE with normal values of hemoglobin and hematocrit, serum prohepcidin concentrations are similar to those observed in healthy pregnant women. The analysis revealed no significant correlations between prohepcidin level and serum iron, serum ferritin or transferrin in the PE.


Subject(s)
Hepcidins/blood , Pre-Eclampsia/blood , Adult , C-Reactive Protein/analysis , Female , Ferritins/blood , Hematocrit , Hemoglobins/analysis , Humans , Interleukin-6/blood , Iron/blood , Pregnancy , Prospective Studies , Turkey/epidemiology , Young Adult
11.
J Matern Fetal Neonatal Med ; 28(7): 854-7, 2015 May.
Article in English | MEDLINE | ID: mdl-24946025

ABSTRACT

OBJECTIVE: To evaluate whether first, second, and third-trimester maternal serum hepcidin levels are different in pregnancies with and without adverse pregnancy outcomes (APO). METHODS: A 165 nullipar pregnant women were included in this prospective cohort study. Serum hepcidin, ferritin, IL-6, C-reactive protein (CRP) and Hb values were measured at 11-14, 24-28, and 30-34 weeks of gestation. The relation between these parameters and APO and neonatal outcomes were investigated. Preterm delivery, intrauterine growth restriction, pre-eclampsia, gestational hypertension and placental abruption were determined as adverse pregnancy outcomes. RESULTS: The risk of APO was three times higher in women with high IL-6 levels in the second trimester. High hepcidin levels in the second trimester were associated with a 1.6 times increased risk of APO. Newborns of women with high IL-6 levels in the third trimester had a 1.6-fold increased risk of neonatal complications. High ferritin levels in the third trimester were associated with minimally increased risk of neonatal complications. CONCLUSIONS: Mean serum hepcidin levels were similar in all pregnant women, however, elevated second trimester serum hepcidin and IL-6 levels were associated with a higher risk of APO and high third trimester hepcidin, ferritin and IL-6 levels were associated with higher risk of neonatal complications.


Subject(s)
Hepcidins/blood , Pregnancy Complications/blood , Pregnancy Trimesters/blood , Adolescent , Adult , Biomarkers/blood , Female , Ferritins/blood , Humans , Infant, Newborn , Infant, Newborn, Diseases/diagnosis , Infant, Newborn, Diseases/etiology , Logistic Models , Pregnancy , Pregnancy Complications/diagnosis , Pregnancy Complications/etiology , Prospective Studies , Risk Assessment , Risk Factors , Young Adult
12.
Gynecol Obstet Invest ; 78(4): 244-50, 2014.
Article in English | MEDLINE | ID: mdl-25227477

ABSTRACT

BACKGROUND/AIMS: The control of labor pain and the prevention of suffering are major concerns of clinicians and their patients. The aim of this study was to evaluate the effect of music on labor pain and anxiety, maternal hemodynamics, fetal-neonatal parameters and postpartum analgesic requirement in primiparous women. METHODS: Overall, 156 primiparous women who expected vaginal delivery were recruited and randomly assigned to a music group (n = 77) or a control group (n = 79). Women in the music group listened to music during labor. Pain intensity and anxiety level were measured using a visual analogue scale (0-10 cm). The two groups were compared in terms of pain severity, anxiety level, maternal hemodynamics, fetal-neonatal parameters and postpartum analgesic requirement. RESULTS: Mothers in the music therapy group had a lower level of pain and anxiety compared with those in the control group at all stages of labor (p < 0.001). A significant difference was observed between the two groups in terms of maternal hemodynamics and fetal heart rate after intervention (p < 0.01). Postpartum analgesic requirement significantly decreased in the music therapy group (p < 0.01). CONCLUSION: Listening to music during labor has a positive impact on labor pain and anxiety, maternal-fetal parameters and analgesic requirement.


Subject(s)
Analgesia/methods , Anxiety/therapy , Labor Pain/therapy , Music Therapy , Postpartum Period , Adolescent , Adult , Female , Gestational Age , Heart Rate, Fetal , Hemodynamics , Humans , Infant, Newborn , Labor, Obstetric/psychology , Pain Measurement , Parity , Pregnancy , Young Adult
13.
Int J Surg Case Rep ; 5(8): 513-5, 2014.
Article in English | MEDLINE | ID: mdl-24997386

ABSTRACT

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.

14.
Mol Biol Rep ; 41(10): 6763-8, 2014 Oct.
Article in English | MEDLINE | ID: mdl-25008994

ABSTRACT

Recurrent vulvovaginal candidiasis (RVVC) is defined as having four or more symptomatic vulvovaginal candidiasis (VVC) attacks within a year. This study aimed to investigate whether Human Dectin-1 Y238X Gene Polymorphism plays a role in RVVC pathogenesis. In order to examine and explore this aim, an experimental study was undergone. The clinical study design was conducted with 50 women diagnosed with RVVC and had four or more symptomatic VVC attacks who were included in the experimental group; while 50 women who did not have previous RVVC history and diagnosis and did not have vaginal discharge and itching in the past year were included in the control group. Blood samples were collected from these patients and transferred to EDTA tubes, to investigate the Dectin-1 Y238X gene polymorphism, and stored at -80°. When Dectin-1 genotypes were compared, there was no significant difference between the two groups (p = 0.452, p = 0.615, p = 0.275). History of familial RVVC was significantly higher in the experimental group (p = 0.001). When the multivariate analysis was used to evaluate factors that could determine RVVC frequency, history of familial RVVC was found to increase the frequency of RVVC attacks by 3.3 units. This study is the first-of-its-kind to investigate the correlation between Dectin-1 Y238X polymorphism, which has not been previously studied in the Turkish population, and RVVC. The result of this study suggests that there is no correlation between this polymorphism and RVVC.


Subject(s)
Alleles , Candidiasis, Vulvovaginal/genetics , Lectins, C-Type/genetics , Polymorphism, Genetic , Adult , Candidiasis, Vulvovaginal/microbiology , Case-Control Studies , Female , Genetic Predisposition to Disease , Genotype , Humans , Recurrence , Risk Factors , Young Adult
15.
J Neurosci ; 34(17): 6047-56, 2014 Apr 23.
Article in English | MEDLINE | ID: mdl-24760864

ABSTRACT

The adipocyte-derived hormone leptin plays a critical role in the central transmission of energy balance to modulate reproductive function. However, the neurocircuitry underlying this interaction remains elusive, in part due to incomplete knowledge of first-order leptin-responsive neurons. To address this gap, we explored the contribution of predominantly inhibitory (GABAergic) neurons versus excitatory (glutamatergic) neurons in the female mouse by selective ablation of the leptin receptor in each neuronal population: Vgat-Cre;Lepr(lox/lox) and Vglut2-Cre;Lepr(lox/lox) mice, respectively. Female Vgat-Cre;Lepr(lox/lox) but not Vglut2-Cre;Lepr(lox/lox) mice were obese. Vgat-Cre;Lepr(lox/lox) mice had delayed or absent vaginal opening, persistent diestrus, and atrophic reproductive tracts with absent corpora lutea. In contrast, Vglut2-Cre;Lepr(lox/lox) females exhibited reproductive maturation and function comparable to Lepr(lox/lox) control mice. Intracerebroventricular administration of kisspeptin-10 to Vgat-Cre;Lepr(lox/lox) female mice elicited robust gonadotropin responses, suggesting normal gonadotropin-releasing hormone neuronal and gonadotrope function. However, adult ovariectomized Vgat-Cre;Lepr(lox/lox) mice displayed significantly reduced levels of Kiss1 (but not Tac2) mRNA in the arcuate nucleus, and a reduced compensatory luteinizing hormone increase compared with control animals. Estradiol replacement after ovariectomy inhibited gonadotropin release to a similar extent in both groups. These animals also exhibited a compromised positive feedback response to sex steroids, as shown by significantly lower Kiss1 mRNA levels in the AVPV, compared with Lepr(lox/lox) mice. We conclude that leptin-responsive GABAergic neurons, but not glutamatergic neurons, act as metabolic sensors to regulate fertility, at least in part through modulatory effects on kisspeptin neurons.


Subject(s)
Fertility/physiology , GABAergic Neurons/metabolism , Kisspeptins/metabolism , Leptin/metabolism , Receptors, Leptin/metabolism , Animals , Arcuate Nucleus of Hypothalamus/drug effects , Arcuate Nucleus of Hypothalamus/metabolism , Estradiol/pharmacology , Female , Fertility/drug effects , GABAergic Neurons/drug effects , Kisspeptins/genetics , Kisspeptins/pharmacology , Luteinizing Hormone/blood , Mice , Mice, Knockout , Receptors, Leptin/genetics , Signal Transduction/drug effects
16.
Eur J Contracept Reprod Health Care ; 19(3): 187-93, 2014 Jun.
Article in English | MEDLINE | ID: mdl-24738915

ABSTRACT

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.


Subject(s)
Cervix Uteri/pathology , Contraceptives, Oral, Synthetic , Intrauterine Devices, Copper/adverse effects , Levonorgestrel , Vagina/microbiology , Adult , Candidiasis/etiology , Contraceptives, Oral, Synthetic/adverse effects , Female , Humans , Levonorgestrel/adverse effects , Middle Aged , Mycoplasma Infections/etiology , Mycoplasma hominis , Prospective Studies , Uterine Cervicitis/etiology
17.
Arch Gynecol Obstet ; 290(2): 249-56, 2014 Aug.
Article in English | MEDLINE | ID: mdl-24639290

ABSTRACT

PURPOSE: To investigate the efficacy of bupivacaine-soaked spongostan in cesarean section wound for postoperative anxiety level, satisfaction and early postpartum depression rate. METHODS: 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. RESULTS: 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 ≤ 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). CONCLUSION: Placement of bupivacaine-soaked spongostan into the cesarean section wound resulted in decreased postoperative anxiety level and postpartum depression rate and increased satisfaction.


Subject(s)
Anesthetics, Local/administration & dosage , Anxiety/epidemiology , Bupivacaine/administration & dosage , Cesarean Section , Fibrin Foam , Postpartum Period , Wound Healing/drug effects , Adolescent , Adult , Analgesics, Opioid/administration & dosage , Anesthesia, General , Anxiety/prevention & control , Cesarean Section/psychology , Depression, Postpartum/epidemiology , Depression, Postpartum/prevention & control , Double-Blind Method , Female , Humans , Pain Measurement , Patient Satisfaction , Postoperative Care , Pregnancy , Prospective Studies , Turkey/epidemiology
18.
Med Hypotheses ; 82(3): 310-2, 2014 Mar.
Article in English | MEDLINE | ID: mdl-24424393

ABSTRACT

Early-onset neonatal sepsis (EONS) continues to be a severe condition associated with a high mortality and morbidity. However, symptoms and laboratory markers of this serious condition are nonspecific and currently there are no available standard tests to provide perfect diagnostic accuracy. An early recognition and initiation of antimicrobial therapy are essential in order to prevent morbidity and mortality. Hepcidin, the key regulator of iron homeostasis, is also an acute-phase reactant, which has a critical role in inflammation and contributes to host defense by interfering with microorganism's access to iron. Since hepcidin expression is induced by interleukin-6 (IL-6), it also plays role in the innate immune system. Recently, endogenous expression of hepcidin by macrophages and neutrophils in response to bacterial pathogens confirmed its role in innate immunity. The clear link between the hepcidin molecule and innate immunity may be used for the detection of EONS. We hypothesized that an increased level of hepcidin in cord blood may be used as a reliable biological marker of EONS and designed a prospective cohort study to test this hypothesis and collected pilot data. Cord blood samples of all infants born between January 2009 and December 2010 at our university hospital were collected after parental consent and a total of 38 infants were enrolled in the study who fulfilled the sepsis criteria. The range of cord blood hepcidin was found to be significantly increased in newborns with EONS (min-max: 118.1-8400 ng/mL). To the best of our knowledge, this is the first study to investigate the pathophysiologic relevance of hepcidin in EONS and demonstrate increased levels of hepcidin in cord blood as an acute-phase reactant in response to sepsis.


Subject(s)
Biomarkers/blood , Fetal Blood/chemistry , Hepcidins/blood , Infant, Newborn, Diseases/blood , Sepsis/blood , Humans , Infant, Newborn
19.
Pain Res Manag ; 19(2): 82-6, 2014.
Article in English | MEDLINE | ID: mdl-24445389

ABSTRACT

BACKGROUND: Endometrial biopsy is a common procedure for the investigation of many gynecological disorders including abnormal uterine bleeding, postmenopausal bleeding, abnormal cytology and infertility. Most women experience some degree of discomfort and pain during the procedure. Pain may occur during dilation of the cervix for insertion of the catheter and during endometrial biopsy, which further aggravates pain by inducing uterine contraction. OBJECTIVES: To determine pain levels during endometrial biopsy by comparing intrauterine instillation of levobupivacaine or lidocaine with placebo in a randomized, double-blinded trial in pre- and postmenopausal women. METHODS: Ninety patients were allocated to either control or experimental groups before endometrial biopsy. The trial medication was intrauterine anesthesia, either 5 mL 0.9% saline (control group), or 5 mL 0.5% levobupivacaine or 2% lidocaine (experimental groups). Resident doctors used the same endometrial biopsy technique to minimize the risk of technical variation. All tissue specimens were sent for cytopathological examination. The pathologists, who were blinded to the study solution, analyzed all tissue specimens. The primary outcome measure was pain experienced during the procedure. Pain was assessed using a 10 cm visual analogue pain scale. All observed adverse effects were recorded until the patients were discharged. RESULTS: Pain scores of the intrauterine lidocaine and levobupivacaine groups were found to be significantly lower than the control group. There was no difference between the levobupivacaine and lidocaine groups with regard to pain scores. There was a moderately positive correlation between pain scores and endometrial thickness. No complications were observed due to the procedure. Most of the biopsy results were proliferative and secretory endometrium. Insufficient material causing inconclusive results was observed mostly in the control group. CONCLUSION: Transcervical intrauterine topical instillation of levobupivacaine or lidocaine causes pain relief during endometrial biopsy. However, further studies are needed to evaluate the effectiveness of intrauterine anesthesia, to determine optimal concentration, volume and waiting time according to the type of local anesthetic agent, and to assess the applicability of the method to other intrauterine procedures.


Subject(s)
Anesthetics, Local/administration & dosage , Biopsy/adverse effects , Bupivacaine/analogs & derivatives , Lidocaine/administration & dosage , Visceral Pain/drug therapy , Visceral Pain/etiology , Adult , Bupivacaine/administration & dosage , Drug Administration Routes , Endometrium/pathology , Female , Humans , Levobupivacaine , Middle Aged , Pain Measurement , Retrospective Studies , Treatment Outcome , Uterus/drug effects
20.
J Affect Disord ; 156: 194-9, 2014 Mar.
Article in English | MEDLINE | ID: mdl-24411681

ABSTRACT

BACKGROUND: Childbirth is an important experience in a woman's life, and unfavorable birth experiences have been shown to negatively impact postpartum maternal health. Aim of this study was to evaluate the effects of music therapy on postpartum pain, anxiety level, satisfaction and early pospartum depression rate. METHODS: Totally 161 primiparous women were recruited and randomized either music group (n=80) or a control group (n=81). Women in the music group listened to self-selected music during labor. Postpartum pain intensity, anxiety level and satisfaction rate were measured using the visual analog scale (VAS), postpartum depression rate was assessed with Edinburg Postpartum Depression Scale (EPDS) at postpartum day one and day eight. RESULTS: Mothers in the music therapy group had a lower level of postpartum pain and anxiety than the control group and it was statistically significant at all time intervals (1, 4, 8, 16 and 24h, p<0.001). A significant difference was observed between the two groups in terms of satisfaction rate (p<0.001) and postpartum depression rate at postpartum day one and day eight (p<0.05). LIMITATIONS: We only measured the effect of music therapy on early postpartum depression rate. Effect of music on late postpartum depression rate should be investigated in future. CONCLUSIONS: Using music therapy during labor decreased postpartum anxiety and pain, increased the satisfaction with childbirth and reduced early postpartum depression rate. Music therapy can be clinically recommended as an alternative, safe, easy and enjoyable nonpharmacological method for postpartum well-being.


Subject(s)
Anxiety/prevention & control , Delivery, Obstetric/psychology , Depression, Postpartum/prevention & control , Labor Pain/therapy , Mothers/psychology , Music Therapy , Parturition/psychology , Adult , Anxiety/psychology , Female , Humans , Labor Pain/diagnosis , Labor Pain/psychology , Pain Measurement , Patient Satisfaction , Postpartum Period/psychology , Pregnancy , Young Adult
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