Spectroscopic and Spectrometric Methods Used for the Screening of Certain Herbal Food Supplements Suspected of Adulteration

Purpose: This study was carried out in order to find a reliable method for the fast detection of adulterated herbal food supplements with sexual enhancement claims. As some herbal products are advertised as "all natural", their "efficiency" is often increased by addition of active pharmaceutical ingredients such as PDE-5 inhibitors, which can be a real health threat for the consumer. Methodes: Adulterants, potentially present in 50 herbal food supplements with sexual improvement claims, were detected using 2 spectroscopic methods - Raman and Fourier Transform Infrared - known for reliability, reproductibility, and an easy sample preparation. GC-MS technique was used to confirm the potential adulterants spectra. Results: About 22% (11 out of 50 samples) of herbal food supplements with sexual enhancement claims analyzed by spectroscopic and spectrometric methods proved to be "enriched" with active pharmaceutical compounds such as: sildenafil and two of its analogues, tadalafil and phenolphthalein. The occurence of phenolphthalein could be the reason for the non-relevant results obtained by FTIR method in some samples. 91% of the adulterated herbal food supplements were originating from China. Conclusion: The results of this screening highlighted the necessity for an accurate analysis of all alleged herbal aphrodisiacs on the Romanian market. This is a first such a screening analysis carried out on herbal food supplements with sexual enhancement claims

Breef overview of gestational diabetes mellitus

As obesity increases worldwide, so do the incidence of gestational diabetes mellitus (GDM) and the related perinatal complications. Pancreatic β-cell secretion is altered by hormonal changes during pregnancy. It appears, however, that patients who develop gestational diabetes have pre-existing insulin resistance. However, there are other risk factors to be considered, such as obesity, age, ethnicity, and polycystic ovary syndrome. Screening for gestational diabetes is very important to avoid maternal and fetal complications. For most pregnant women, glycemic control is achieved through dietary and lifestyle changes, although a small percentage requires pharmacological treatment

Pregnancy in the context of Multiple Sclerosis

Multiple Sclerosis is a chronic autoimmune neurodegenerative disorder which affects brain, spinal cord and optic nerve. During last years the perception over the disease changed dramatically, now being considered a handleable disease. The particularity of this subject is that Multiple Sclerosis is a disease which affects mostly young women, many of them not having any children at the moment of diagnosis. This article highlights the fact that women diagnosed with Multiple Sclerosis are allowed to get pregnant, and, moreover, they are encouraged to live a normal life. In most cases, disease activity freezes during pregnancy, only a small percentage of women will continue to have clinically and radiologically active disease. For those women, IFN-β and Glatiramer Acetate are the first-choice therapies that should be given. In cases when the disease is not responding to common medication, refractory to treatment forms may be successfully treated with Natalizuab, during the first and the second trimester. Breastfeeding is also encouraged, as it has a protective effect on disease progression. The main purpose of this article is to make a literature review in which to summarize the updates regarding pregnancy and postpartum management, relapses management and, also, the impact of pregnancy on Multiple Sclerosis course. The analysis was limited to articles written in English and published between August 2019 - October 2022 on PubMed, NCBI and Medical Journals

Managing intrauterine growth restriction

The fetal growth normally depends on sufficient delivery of oxygen and nutrients mainly via the placenta. Inadequate fetal nutrition may result in poor development and adaptation that permanently alter the fetus' metabolism and physiology. Intrauterine Growth Restriction is defined as a deviation on the fetal growth pattern. An estimated fetal weight (EFW) that is below the 10th percentile for gestational age is commonly used to describe fetal growth restriction. Usually obtained sonographically, there is evidence that ultrasound imaging of the uterine artery, middle cerebral artery, and fetal umbilical artery during the late third-trimester (approximately 35-37 weeks) significantly improves the detection and diagnosis of IUGR. In obstetrics, an increased risk of perinatal mortality and morbidity is associated with the diagnosis of IUGR

Monitoring Black Sea environmental changes from space: New products for altimetry, ocean colour and salinity. Potentialities and requirements for a dedicated in-situ observing system

21 pages, 13 figures, 2 tables, supplementary material https://www.frontiersin.org/articles/10.3389/fmars.2022.998970/full#supplementary-material.-- Data availability statement: The datasets generated for this study can be found on the web interface (http://www.eo4sibs.uliege.be/) and on Zenodo under data doi: 10.5281/zenodo.6397223 with a full documentation that include Products User Manuals (PUM) and Algorithm Theoretical Basis Document (ATBD). All these products are distributed in netCDF files Grégoire et al. (2022). SMOS SSS and CDM products are also available at https://bec.icm.csic.es/bec-ftp-service/In this paper, satellite products developed during the Earth Observation for Science and Innovation in the Black Sea (EO4SIBS) ESA project are presented. Ocean colour, sea level anomaly and sea surface salinity datasets are produced for the last decade and validated with regional in-situ observations. New data processing is tested to appropriately tackle the Black Sea’s particular configuration and geophysical characteristics. For altimetry, the full rate (20Hz) altimeter measurements from Cryosat-2 and Sentinel-3A are processed to deliver a 5Hz along-track product. This product is combined with existing 1Hz product to produce gridded datasets for the sea level anomaly, mean dynamic topography, geostrophic currents. This new set of altimetry gridded products offers a better definition of the main Black Sea current, a more accurate reconstruction and characterization of eddies structure, in particular, in coastal areas, and improves the observable wavelength by a factor of 1.6. The EO4SIBS sea surface salinity from SMOS is the first satellite product for salinity in the Black Sea. Specific data treatments are applied to remedy the issue of land-sea and radio frequency interference contamination and to adapt the dielectric constant model to the low salinity and cold waters of the Black Sea. The quality of the SMOS products is assessed and shows a significant improvement from Level-2 to Level -3 and Level-4 products. Level-4 products accuracy is 0.4-0.6 psu, a comparable value to that in the Mediterranean Sea. On average SMOS sea surface salinity is lower than salinity measured by Argo floats, with a larger error in the eastern basin. The adequacy of SMOS SSS to reproduce the spatial characteristics of the Black Sea surface salinity and, in particular, plume patterns is analyzed. For ocean colour, chlorophyll-a, turbidity and suspended particulate materials are proposed using regional calibrated algorithms and satellite data provided by OLCI sensor onboard Sentinel-3 mission. The seasonal cycle of ocean colour products is described and a water classification scheme is proposed. The development of these three types of products has suffered from important in-situ data gaps that hinder a sound calibration of the algorithms and a proper assessment of the datasets quality. We propose recommendations for improving the in-situ observing system that will support the development of satellite productsThis work has been carried out as part of the European Space Agency contract Earth Observation data For Science and Innovations in the Black Sea (EO4SIBS, ESA contract n° 4000127237/19/I-EF). MG received fundings from the Copernicus Marine Service (CMEMS), the European Union’s Horizon 2020 BRIDGE-BS project under grant agreement No. 101000240 and by the Project CE2COAST funded by ANR(FR), BELSPO (BE), FCT (PT), IZM (LV), MI (IE), MIUR (IT), Rannis (IS), and RCN (NO) through the 2019 “Joint Transnational Call on Next Generation Climate Science in Europe for Oceans” initiated by JPI Climate and JPI Oceans. The research on SMOS SSS has been also supported in part by the Spanish R&D project INTERACT (PID2020-114623RB-C31), which is funded by MCIN/AEI/10.13039/501100011033, funding from the Spanish government through the “Severo Ochoa Centre of Excellence” accreditation (CEX2019-000928-S) and the CSIC Thematic Interdisciplinary Platform TeledetectPeer reviewe

Removal of Cr 3+ from Waste Solution by a Bulk Liquid Membrane and Ion-Exchange Membrane Nafion 117

In this paper the removal efficiency of chromium trivalent ions by a bulk liquid membrane (BLM