Association of kisspeptin in patients with poly cystic ovarian syndrome

Background: Poly cystic ovarian syndrome (PCOS) is a complex multifactorial disorder, affecting millions of women worldwide. Kisspeptin, a hypothalamic peptide encoded by the KISS1 gene, is widely reported as a key factor in the regulation of luteinizing hormone (LH)/follicular stimulating hormone (FSH) secretion, which may be potentially involved with the development of PCOS. The aim of the study was to estimate the serum kisspeptin level in PCOS patients and evaluate the association of kisspeptin with other biochemical, and hormonal parameters in women with PCOS. Methods: This case-control study was conducted at the department of reproductive endocrinology and infertility, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh from August 2020 to July 2021. A total of 90 patients between age 18-30 years were enrolled in this study. Data was collected on variables of interest by using the structured questionnaire designed for interview, observation, clinical examination, and biochemical investigation of the patients and analyzed by using the t-test, non-parametric test (Mann-Whitney U test) and chi-square test as appropriate. Results: We found no significant difference between PCOS & control group, but acanthosis nigricans (AN), waist hip (W:H) ratio were statistically significant in PCOS group. We found serum LH (11.98±6.29 mIU/ml), LH: FSH (1.71±0.92), AMH (10.09±3.8 ng/ml), fasting insulin (26.53±28.34 µU/ml), ovarian volume (16.91±4.57), was significantly higher in PCOS patients. Kisspeptin value in PCOS patients was 85.92±56.59 pg/ml and control group was 63.74±43.16 pg/ml. In the PCOS group, there was a positive correlation between kisspeptin and LH, AMH, and ovarian volume. Conclusions: Serum kisspeptin levels were similar in women with or without PCOS but positively correlated with ovarian volume, serum LH and AMH in PCOS patients

Effect of early tranexamic acid administration on mortality, hysterectomy, and other morbidities in women with post-partum haemorrhage (WOMAN): an international, randomised, double-blind, placebo-controlled trial

Background Post-partum haemorrhage is the leading cause of maternal death worldwide. Early administration of tranexamic acid reduces deaths due to bleeding in trauma patients. We aimed to assess the effects of early administration of tranexamic acid on death, hysterectomy, and other relevant outcomes in women with post-partum haemorrhage. Methods In this randomised, double-blind, placebo-controlled trial, we recruited women aged 16 years and older with a clinical diagnosis of post-partum haemorrhage after a vaginal birth or caesarean section from 193 hospitals in 21 countries. We randomly assigned women to receive either 1 g intravenous tranexamic acid or matching placebo in addition to usual care. If bleeding continued after 30 min, or stopped and restarted within 24 h of the first dose, a second dose of 1 g of tranexamic acid or placebo could be given. Patients were assigned by selection of a numbered treatment pack from a box containing eight numbered packs that were identical apart from the pack number. Participants, care givers, and those assessing outcomes were masked to allocation. We originally planned to enrol 15 000 women with a composite primary endpoint of death from all-causes or hysterectomy within 42 days of giving birth. However, during the trial it became apparent that the decision to conduct a hysterectomy was often made at the same time as randomisation. Although tranexamic acid could influence the risk of death in these cases, it could not affect the risk of hysterectomy. We therefore increased the sample size from 15 000 to 20 000 women in order to estimate the effect of tranexamic acid on the risk of death from post-partum haemorrhage. All analyses were done on an intention-to-treat basis. This trial is registered with ISRCTN76912190 (Dec 8, 2008); ClinicalTrials.gov, number NCT00872469; and PACTR201007000192283. Findings Between March, 2010, and April, 2016, 20 060 women were enrolled and randomly assigned to receive tranexamic acid (n=10 051) or placebo (n=10 009), of whom 10 036 and 9985, respectively, were included in the analysis. Death due to bleeding was significantly reduced in women given tranexamic acid (155 [1·5%] of 10 036 patients vs 191 [1·9%] of 9985 in the placebo group, risk ratio [RR] 0·81, 95% CI 0·65–1·00; p=0·045), especially in women given treatment within 3 h of giving birth (89 [1·2%] in the tranexamic acid group vs 127 [1·7%] in the placebo group, RR 0·69, 95% CI 0·52–0·91; p=0·008). All other causes of death did not differ significantly by group. Hysterectomy was not reduced with tranexamic acid (358 [3·6%] patients in the tranexamic acid group vs 351 [3·5%] in the placebo group, RR 1·02, 95% CI 0·88–1·07; p=0·84). The composite primary endpoint of death from all causes or hysterectomy was not reduced with tranexamic acid (534 [5·3%] deaths or hysterectomies in the tranexamic acid group vs 546 [5·5%] in the placebo group, RR 0·97, 95% CI 0·87-1·09; p=0·65). Adverse events (including thromboembolic events) did not differ significantly in the tranexamic acid versus placebo group. Interpretation Tranexamic acid reduces death due to bleeding in women with post-partum haemorrhage with no adverse effects. When used as a treatment for postpartum haemorrhage, tranexamic acid should be given as soon as possible after bleeding onset. Funding London School of Hygiene & Tropical Medicine, Pfizer, UK Department of Health, Wellcome Trust, and Bill & Melinda Gates Foundation

Customer experiences with service robots in hotels: a review and research agenda

This study consolidates the limited research on real-life customer experiences with hotels that have integrated service robots (SR) grounded in the Usability, Social Acceptance, User experience, and Societal Impact (USUS) Framework. Employing a systematic and thematic review across 42 articles, the findings reveal discrepancies in customer experience (CX) across dimensions like embodiment, emotions, human-oriented perceptions, security, and co-experience. Theoretically, the results suggest that long-term CX may be more grounded in pragmatic aspects rather than SR novelty. The review also cautions against indiscriminate SR integration, which can lead to unpredictable CX. The study contributes to academic discourse by identifying critical CX aspects, providing a future research agenda, and a foundation for developing robust theoretical frameworks. For practitioners, the insights offer guidance on effectively integrating AI technologies to enhance CX, such as focusing on SR functionality, optimal SR-human service offerings, and considering evolving CX for innovative technological integrations in hotels.<br/

Synthesis and physico-chemical studies on transition metal complexes of macrocyclic ligand derived from 2,6-diacetylpyridine dihydrazone

556-561A novel series of Schiff base decaazamacrocyclic complexes [ML/ X2] [M = Mn(II), Fe(II), Co(II), Ni(II) and Zn (II)] ; and [CuL/]X2 ( X = Cl, NO3) have been synthesized by the reaction between pre-synthesized 2,6-diacetylpyridine dihydrazone (L) and formaldehyde in the presence or metal ions in methanol medium at room temperature.The formation of ligand (L) and the proposed macrocyclic complexes have been confirmed from the results of elemental analyses, the comparative band positions for v(C=N) and appearance of proton resonance peaks for secondary amine group (N-NH-C) in 1H NMR spectra of complexes. The nature of the complexes and their overall geometry have been inferred from electrical conductivity data, observed band positions in electronic spectra and magnetic moment values

SPECIES RICHNESS OF CLIMBERS IN NATURAL AND SUCCESSIONAL STANDS OF MADHUPUR SAL (Shorea robusta C.F. Gaertn) FOREST, BANGLADESH

Climber species richness and population structure were investigated in natural and successional stand in Madhupur Sal forest of Bangladesh. Species richness varied between the natural and successional stand. The natural stand showed the higher species richness (25 species from 20 genera and 15 families) than successional stand (7 species from 7 genera and 6 families). Climber diversity was higher in natural stand than the successional stand. The concentration of dominance was higher in successional stand due to highly abundance of a single species (Mikania micrantha). It was found that species richness of climbers was related to the species richness of trees

Synthesis, physico-chemical and antimicrobial screening studies on 14 and 16-membered hexaazamacrocyclic complexes bearing pendant amine groups

The synthesis and characterization of a series of 14 and 16-membered hexaazamacrocyclic complexes, which were obtained via template condensation of 1,2- diaminoethane or 1,3-diaminopropane, formaldehyde and hydrazine hydrate in the presence of first row transition metal salts are reported. Complexes of the types, [ML¹(NO3)2]; [CuL¹](NO3)2 and [ML²Cl2]; [CuL²]Cl2 (where M = Co(II), Ni(II) and Zn(II)), were obtained. Elemental analyses, IR spectra, ¹H NMR, EPR, UV-Vis, magnetic susceptibility and conductivity measurements have ascertained the overall geometry and stereochemistry of the complexes. An octahedral geometry has been suggested for all the complexes, except for copper compounds, in which the metal centre coordinates to the four nitrogen atoms of macrocyclic ligand in a square planar fashion. These complexes were screened against different fungi and bacteria in vitro and were found to be potentially active in the concentration 5 mg mL-1