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1.
BMC Public Health ; 24(1): 1952, 2024 Jul 22.
Artigo em Inglês | MEDLINE | ID: mdl-39039527

RESUMO

BACKGROUND: Ethiopia enacted a comprehensive tobacco control law in 2019, which bans tobacco advertising and promotion activities. However, compliance with these laws at points-of-sale (PoS) has not been studied, resulting in a lack of research evidence on how the regulations are implemented. The purpose of the study was to assess compliance with tobacco advertising and promotion laws at PoS in 10 cities in Ethiopia. METHODS: Multi-stage cluster sampling was used to select 1468 PoS (supermarkets, minimarkets, merchandise stores, regular shops, permanent kiosks, khat shops, street vendors, and food and drink wholesalers). Data were collected using standardized observational checklists. Tobacco advertising and promotion indicators were used to compute indoor and outdoor compliance. Poisson regression models with log link function and robust variance were used to assess factors associated with open display of cigarette packages and indoor non-compliance. RESULTS: The average indoor compliance rate was 92.9% (95% CI:92.3-93.5). Supermarkets had the highest compliance (99.7%), while permanent kiosks showed the lowest compliance (89.8%). The highest average indoor compliance was observed at PoS in Addis Ababa (98.0%). About 60% of PoS were fully compliant in indoors. Indoor open display of cigarette packages was prevalent (32.5%, 95% CI:30.0-35.1). The average outdoor compliance was 99.6% (95% CI:99.5-99.7). Outdoor full compliance was 96.5%. Open display of cigarettes was significantly higher in permanent kiosks (adjusted prevalence ratio (adjPR) 6.73; 95% CI: 3.96-11.42), regular shops (adjPR 5.16; 95% CI: 3.05-8.75), and khat shops (adjPR 2.06; 95% CI: 1.11-3.83), while indoor non-compliance was significantly higher in these same types of PoS. CONCLUSIONS: While outdoor compliance rates were relatively high, the lower indoor compliance rates particularly due to the high prevalence of open cigarette package displays indicates a major area for improvement in enforcing anti-tobacco advertising and promotion laws.


Assuntos
Publicidade , Cidades , Produtos do Tabaco , Etiópia , Humanos , Publicidade/legislação & jurisprudência , Publicidade/estatística & dados numéricos , Produtos do Tabaco/legislação & jurisprudência , Fidelidade a Diretrizes/estatística & dados numéricos , Comércio/legislação & jurisprudência , Comércio/estatística & dados numéricos
2.
Sci Rep ; 14(1): 15431, 2024 07 04.
Artigo em Inglês | MEDLINE | ID: mdl-38965239

RESUMO

To detect the contaminate of faucets in hospitals and the splash during hand washing, and to explore the reasonable layout of hand washing pools. Two faucets with roughly the same spatial layout in the ICU of a third-class first-class general hospital were selected, and the farthest splashing distance and specific splashing points were measured by color paper. Samples were detected by ATP detection technology and routine microbial detection method, and the contaminate of faucets was analyzed. After 72 h of daily hand-washing activities, the furthest distance to the splash point was about 100 cm around the faucet, and the place 40-110 cm around the faucet was contaminated seriously. The farthest distance that the splash point reached was about 80 cm around the faucet with the center of the circle, and the area 40-60 cm around the faucet was heavily contaminated. The distance from the water outlet of the long handle and the short handle faucet to the detection point had a high negative correlation (r = - 0.811, P < 0.001) and a moderate negative correlation (r = - 0.475, P = 0.001) with the number of splash points, respectively. The qualified rates of ATP detection and microbial culture were 25% and 15%, respectively. Pseudomonas aeruginosa, Staphylococcus epidermidis, and other pathogenic bacteria were detected in the water outlet of the faucet and the surrounding environment. Safe hand hygiene facilities are one of the important guarantees of hand hygiene effect. Clean objects and objects related to patients should not be placed within 1 m range near the water outlet of faucet. Anti-splash baffle should be installed as much as possible when conditions permit to reduce the contaminate caused by splash during hand washing.


Assuntos
Desinfecção das Mãos , Unidades de Terapia Intensiva , Humanos , Infecção Hospitalar/prevenção & controle
3.
J Hosp Infect ; 151: 195-200, 2024 Jul 09.
Artigo em Inglês | MEDLINE | ID: mdl-38992841

RESUMO

BACKGROUND: Pseudomonas aeruginosa is a leading cause of nosocomial Gram-negative bacteraemia. Water systems are a well-documented source of P. aeruginosa and established biofilms are difficult to remove. AIM: To evaluate the efficacy of regular flushing, peracetic acid disinfection, in-tap thermal disinfection, and in-line thermal disinfection to eradicate P. aeruginosa biofilm in a colonized tap model. METHODS: A simulated tap system was constructed and inoculated with a reference and an environmental strain of P. aeruginosa to form biofilm. Water samples were collected from the taps and P. aeruginosa levels enumerated following disinfection methods. To simulate regular flushing, taps were flushed for 5 min, five times per day with water tested daily. Peracetic acid (4000 ppm) was manually injected into the system and flushed through the system with a pump. Thermal flushing at 60 °C was performed in-line and with an in-tap bypass valve. Tests were conducted with cross-linked polyethylene (PEX) piping and repeated with copper piping. FINDINGS: Regular flushing and peracetic acid applied with a pump did not reduce P. aeruginosa levels. A limited reduction was observed when manually injecting peracetic acid. In-tap thermal flushing eradicated P. aeruginosa in copper piping but not PEX. In-line thermal flushing was the most effective at reducing P. aeruginosa levels; however, it did not eradicate the biofilm. CONCLUSION: In-line thermal flushing was the most effective method to remove P. aeruginosa biofilm. Results vary significantly with the strain of bacteria and the composition of the plumbing. Several methods used in combination may be necessary to remove established biofilm.

4.
ACS Biomater Sci Eng ; 10(7): 4259-4268, 2024 Jul 08.
Artigo em Inglês | MEDLINE | ID: mdl-38832439

RESUMO

Cryopreservation of red blood cells (RBCs) plays an indispensable role in modern clinical transfusion therapy. Researchers are dedicated to finding cryoprotectants (CPAs) with high efficiency and low toxicity to prevent RBCs from cryopreservation injury. This study presents, for the first time, the feasibility and underlying mechanisms of a novel CPA called tris(hydroxymethyl)aminomethane-3-propanesulfonic acid (TAPS) in RBCs cryopreservation. The results demonstrated that the addition of TAPS achieved a post-thaw recovery of RBCs at 79.12 ± 0.67%, accompanied by excellent biocompatibility (above 97%). Subsequently, the mechanism for preventing RBCs from cryopreservation injury was elucidated. On one hand, TAPS exhibits a significant amount of bound water and effectively inhibits ice recrystallization, thereby reducing mechanical damage. On the other hand, TAPS demonstrates high capacity to scavenge reactive oxygen species and strong endogenous antioxidant enzyme activity, providing effective protection against oxidative damage. Above all, TAPS can be readily removed through direct washing, and the RBCs after washing showed no significant differences in various physiological parameters (SEM, RBC hemolysis, ESR, ATPase activity, and Hb content) compared to fresh RBCs. Finally, the presented mathematical modeling analysis indicates the good benefits of TAPS. In summary, TAPS holds potential for both research and practical in the field of cryobiology, offering innovative insights for the improvement of RBCs cryopreservation in transfusion medicine.


Assuntos
Criopreservação , Crioprotetores , Eritrócitos , Eritrócitos/fisiologia , Criopreservação/métodos , Humanos , Crioprotetores/farmacologia , Crioprotetores/química , Preservação de Sangue/métodos , Hemólise , Espécies Reativas de Oxigênio/metabolismo , Sobrevivência Celular
5.
Environ Sci Technol ; 58(24): 10558-10566, 2024 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-38833713

RESUMO

Soot particles emitted from aircraft engines constitute a major anthropogenic source of pollution in the vicinity of airports and at cruising altitudes. This emission poses a significant threat to human health and may alter the global climate. Understanding the characteristics of soot particles, particularly those generated from Twin Annular Premixing Swirler (TAPS) combustors, a mainstream combustor in civil aviation engines, is crucial for aviation environmental protection. In this study, a comprehensive characterization of soot particles emitted from TAPS combustors was conducted using scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), and Raman spectroscopy. The morphology and nanostructure of soot particles were examined across three distinct fuel stage ratios (FSR), at 10%, 15%, and 20%. The SEM analysis of soot particle morphology revealed that coated particles constitute over 90% of the total particle sample, with coating content increasing proportionally to the fuel stage ratio. The results obtained from HRTEM indicated that average primary particle sizes increase with the fuel stage ratio. The results of HRTEM and Raman spectroscopy suggest that the nanostructure of soot particles becomes more ordered and graphitized with an increasing fuel stage ratio, resulting in lower oxidation activity. Specifically, soot fringe length increased with the fuel stage ratio, while soot fringe tortuosity and separation distance decreased. In addition, there is a prevalent occurrence of defects in the graphitic lattice structure of soot particles, suggesting a high degree of elemental carbon disorder.


Assuntos
Aeronaves , Fuligem , Nanoestruturas/química , Tamanho da Partícula , Emissões de Veículos , Análise Espectral Raman , Poluentes Atmosféricos
6.
Neuroradiology ; 66(7): 1213-1223, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38720066

RESUMO

PURPOSE: To describe fetal brain Magnetic Resonance Imaging (MRI) findings in a large series of monochorionic (MC) pregnancies complicated by Twin Anemia-Polycythemia Sequence (TAPS) prenatally diagnosed, so to characterize the potential intracranial complications associated with this condition, their frequency and potential treatment options. METHODS: This is a retrospective study of MC twin pregnancies complicated by TAPS and undergone fetal MRI in a single institution from 2006 to 2023. MRI control was performed and post-natal ultrasound (US) or MRI were available. RESULTS: 1250 MC pregnancies were evaluated in our institution. 50 pregnancies (4%) were diagnosed with TAPS, 29 underwent a fetal brain MRI. 13/29 pregnancies (44.8%) demonstrated brain findings at MRI in at least a twin. Neuroradiological findings were detected in 14/57 twins (24.6%). We detected four main categories of findings: hemorrhagic lesions, T2-weighted white-matter hyperintensities (WMH), brain edema-swelling and venous congestion. Nineteen findings were present in the anemic and three in the polycythemic twins, with a statistically significant ratio between the two groups (p-value = 0.01). Intrauterine MRI follow-up demonstrated the sequalae of hemorrhagic lesions. A complete regression of brain swelling, veins prominence and T2-WMHs was demonstrated after treatment. Postnatal imaging confirmed prenatal features. CONCLUSIONS: Our work demonstrates that TAPS-related MRI anomalies consisted in edematous/hemorrhagic lesions that occur mostly in anemic rather than in polycythemic twins. Fetoscopic laser surgery could have a potential decongestant role. Therefore, prenatal MRI may help in counselling and management in TAPS pregnancies, especially for the planning of therapy and the monitoring of its efficacy.


Assuntos
Transfusão Feto-Fetal , Imageamento por Ressonância Magnética , Humanos , Feminino , Gravidez , Imageamento por Ressonância Magnética/métodos , Estudos Retrospectivos , Transfusão Feto-Fetal/diagnóstico por imagem , Transfusão Feto-Fetal/complicações , Adulto , Gravidez de Gêmeos , Diagnóstico Pré-Natal/métodos , Policitemia/diagnóstico por imagem , Anemia/diagnóstico por imagem
7.
J Biomed Sci ; 31(1): 53, 2024 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-38764023

RESUMO

BACKGROUND: The C-type lectin family 18 (CLEC18) with lipid and glycan binding capabilities is important to metabolic regulation and innate immune responses against viral infection. However, human CLEC18 comprises three paralogous genes with highly similar sequences, making it challenging to distinguish genetic variations, expression patterns, and biological functions of individual CLEC18 paralogs. Additionally, the evolutionary relationship between human CLEC18 and its counterparts in other species remains unclear. METHODS: To identify the sequence variation and evolutionary divergence of human CLEC18 paralogs, we conducted a comprehensive analysis using various resources, including human and non-human primate reference genome assemblies, human pangenome assemblies, and long-read-based whole-genome and -transcriptome sequencing datasets. RESULTS: We uncovered paralogous sequence variants (PSVs) and polymorphic variants (PVs) of human CLEC18 proteins, and identified distinct signatures specific to each CLEC18 paralog. Furthermore, we unveiled a novel segmental duplication for human CLEC18A gene. By comparing CLEC18 across human and non-human primates, our research showed that the CLEC18 paralogy probably occurred in the common ancestor of human and closely related non-human primates, and the lipid-binding CAP/SCP/TAPS domain of CLEC18 is more diverse than its glycan-binding CTLD. Moreover, we found that certain amino acids alterations at variant positions are exclusive to human CLEC18 paralogs. CONCLUSIONS: Our findings offer a comprehensive profiling of the intricate variations and evolutionary characteristics of human CLEC18.


Assuntos
Evolução Molecular , Variação Genética , Lectinas Tipo C , Humanos , Lectinas Tipo C/genética , Lectinas Tipo C/metabolismo , Animais , Primatas/genética
8.
Nicotine Tob Res ; 2024 Apr 25.
Artigo em Inglês | MEDLINE | ID: mdl-38661571

RESUMO

INTRODUCTION: Banning Point-of-Sale (POS) advertising and product display is an important tobacco control strategy. Depok, Indonesia enacted some regional tobacco control policies regulating the POS environment in 2021. This study examined changes in compliance before and after the implementation of these policies as of 2021. METHODS: Data collectors visited 180 modern retailers (hyper/supermarkets/convenience stores) and 147 traditional retailers (warungs) in 2019. The same retailers were re-visited in 2021. Data collectors assessed compliance with tobacco product display, and advertising regulations at POS, including if products were displayed in spaces to target minors (near candy or at a child's eye-level). Data were analyzed using McNemar and Mann-Whitney U tests. RESULTS: From 2019 to 2021, in modern retailers, tobacco product display (95.6% vs 52.2%) and product advertising (36.1% vs 3.9%) were significantly reduced (p<0.001). In traditional retailers, tobacco product display (94.6% in 2019, 91.2% in 2021, p>0.05) and product advertising (87.1% in 2019, 87.8% in 2021, p>0.05) remained common during both data collection periods. Tobacco products were commonly displayed in spaces to target minors in both modern retailers (43.3% in 2019, 34.4% in 2021, p>0.05) and traditional retailers (90.5% in 2019, 83.0% in 2021, p>0.05). CONCLUSIONS: Compliance with bans on tobacco product advertising and display at modern retailers improved significantly from 2019 to 2021; however, most modern retailers continue to display tobacco products in 2021. Traditional retailers remain largely non-compliant. Tobacco products are commonly displayed in areas that target minors. The enforcement of regional regulations should be strengthened, particularly among traditional retailers. IMPLICATIONS: In Depok, Indonesia, tobacco advertising and product display bans have been implemented; however, more work is needed to support compliance. Enforcement efforts, such as those carried out by civil police, can focus on tobacco product display bans in traditional and modern retailers, and traditional retailers need additional support to remove tobacco product advertising. Retailers may receive money from the tobacco industry for these advertisements. Creative solutions may include supporting retailers in finding alternative advertising revenue.

9.
Clín. investig. ginecol. obstet. (Ed. impr.) ; 51(1): [100913], Ene-Mar, 2024. tab
Artigo em Espanhol | IBECS | ID: ibc-229778

RESUMO

Introducción: El objetivo de este trabajo consiste en describir y analizar los resultados perinatales de una serie de casos de anemia-policitemia (TAPS) seguidos y tratados en un centro de referencia en Medicina Fetal, en términos del tipo TAPS y la conducta prenatal aplicada. Métodos: Análisis estadístico descriptivo e inferencial con el programa IBM SPSS Statistics. Resultados: Se diagnosticaron 13 casos de TAPS en un total de 510 gestaciones monocoriales. La mayoría de TAPS espontáneos se diagnosticaron en estadios precoces (5 casos), mientras que, en TAPS posláser, 3/6 casos se diagnosticaron en estadios avanzados. Cuatro fetos (4/26; 15,4%) presentaron alteraciones en la neurosonografía, 3 (3/14; 21,4%) en TAPS espontáneos y uno (1/12, 8,3%) en TAPS posláser (p = 0,308). Se detectó hipertrofia miocárdica en 7 fetos, 5 (71,4%) de los cuales correspondían a TAPS en estadios avanzados. Cuatro eran TAPS espontáneos (4/14; 28,6%) y 3 TAPS posláser (3/12; 25%) (p = 0,797). Ocho casos (8/13; 62,5%) precisaron algún procedimiento de terapia fetal. Se produjeron 3 muertes fetales anteparto y una pareja decidió interrupción legal del embarazo (19,23%). Las 5 pérdidas se produjeron en estadio IV (p=0,008).La supervivencia global fue del 80,8% (21/26 recién nacidos vivos). No hubo diferencias significativas en función del tipo TAPS (p = 0,159) y la conducta prenatal adoptada (p = 0,746). Conclusiones: El TAPS espontáneo es, por tanto, una entidad clínica con un impacto en los resultados perinatales similar al posláser. Parece que la conducta expectante y el láser consiguen mayor edad gestacional al nacimiento.(AU)


Introduction: The aim of this paper is to describe and analyze the perinatal outcomes of a series of TAPS cases followed and treated in a Fetal Medicine referral center, in terms of the type of TAPS and the prenatal behavior applied. Methods: Descriptive and inferential statistical analysis with IBM SPSS Statistics software. Results: Thirteen cases of TAPS were diagnosed in a total of 510 monocorial gestations. Most of the spontaneous TAPS were diagnosed at early stages (5 cases), whereas, in post-laser TAPS, 3/6 cases were diagnosed at advanced stages. Four fetuses (4/26; 15.4%) presented alterations in neurosonography, 3 (3/14; 21.4%) in spontaneous TAPS and one (1/12, 8.3%) in post-laser TAPS (P=0.308). Myocardial hypertrophy was detected in 7 fetuses, 5 (71.4%) of which corresponded to advanced stage TAPS. Four were spontaneous TAPS (4/14; 28.6%) and 3 were post-laser TAPS (3/12; 25%) (P=0.797). Eight cases (8/13; 62.5%) required some fetal therapy procedure. There were 3 antepartum fetal deaths and one couple decided to legally terminate the pregnancy (19.23%). All 5 losses were stage IV (P=0.008). Overall survival was 80.8% (21/26 live newborns). There were no significant differences according to the type of TAPS (P= 0.159) and the prenatal behavior adopted (P=0.746).Conclusions: Spontaneous TAPS is therefore a clinical entity with an impact on perinatal outcomes similar to post-laser. It seems that expectant management and laser achieve higher gestational age at birth.(AU)


Assuntos
Humanos , Feminino , Gravidez , Policitemia , Anemia , Complicações na Gravidez , Perinatologia , Doenças Fetais , Gêmeos , Unidade Hospitalar de Ginecologia e Obstetrícia , Ginecologia
10.
Water Res ; 255: 121508, 2024 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-38552487

RESUMO

Water treatment works have previously shown high efficiency in removing microplastics > 25 µm from raw source water. However, what is less well known is the extent to which microplastics of this size class are generated or lost within the water distribution network, particularly whether there is a greater presence in the customer tap than in the water treatment works outlet. This study focused on the presence of 21 different types of synthetic polymer particles with sizes larger than 25 µm examined through multiple rounds of sampling at outlets of water treatment works (WTW), service reservoirs (SR), and customer taps (CT) managed by seven different water companies in Britain. Nineteen different types of polymers were detected; their signature and concentration varied based on the round of sampling, the location within the water supply network, and the water company responsible for managing the supply. Among the polymers examined, polyamide (PA), polyethene terephthalate (PET), polypropylene (PP), and polystyrene (PS) were the most commonly found. Apart from PET having its highest concentration of 0.0189 microplastic per litre (MP/L) in the SR, the concentrations of the other three most frequent polymers (PS = 0.017 MP/L, PA = 0.0752 MP/L, PP= 0.1513 MP/L) were highest in the CT. The overall prevalence of this size of microplastics in the network is low, but there was a high variability of polymer types and occurrences. These spatial and temporal variations suggested that the MP in the distribution network may exist as a series of pulses. Given the presence and polymer types, the potential for some of the microplastics to originate from materials used in the water network and domestic plumbing systems cannot be ruled out. As found before, the absolute number of microplastics in the water distribution network remained extremely low.

11.
Geburtshilfe Frauenheilkd ; 84(3): 274-281, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38455999

RESUMO

Introduction: The aim of our study was to compare maternal, chorionicity and neonatal complications in monochorionic (MC) twins between spontaneously conceived (SC) and assisted reproductive technologies (ART) pregnancies. Material and Methods: This was a retrospective cohort study between January 2010 to December 2019 at a tertiary referral University center. All consecutive pregnancies with MC twins that delivered at our University hospital were included. Maternal, chorionicity and neonatal complications were recorded and compared between SC and ART pregnancies. Results: 393 MC pregnancies were included for final analysis, including 353 (89.8%) SC and 40 (10.2%) pregnancies conceived after ART. Hypothyroidism was the only maternal condition seen significantly more often in ART pregnancies (35.0% vs 12.5%, p = 0.001). There were no significant differences in chorionicity complications, such as twin-twin transfusion syndrome, selective fetal growth restriction and twin anemia-polycythemia sequence (40.0% in ART pregnancies vs 31.6% in SC pregnancies, p = 0.291). At least one congenital anomaly in one twin was seen significantly more often in ART pregnancies (18.8% vs 8.1%, p = 0.004), especially congenital heart defects (16.3% vs 6.2%, p = 0.005). There were no other significant differences in neonatal outcomes between both groups, however, there were non-significant trends in gestational age at delivery (34 weeks in ART pregnancies vs 35 weeks, p = 0.078) and birthweight (1951 g ± 747 in ART pregnancies vs 2143 g ± 579, p = 0.066). Conclusion: This is the largest cohort study to date comparing maternal, chorionicity and neonatal complications between MC twin pregnancies after ART and after SC. Hypothyroidism was the only maternal condition occurring more frequently in pregnancies conceived after ART. There were no significant differences in chorionicity complications, in contrast to previously reported studies. While MC twins and ART pregnancies per se are known to be at risk for congenital heart defects, there seems to be a cumulative effect in MC pregnancies conceived after ART.

12.
Tob Induc Dis ; 21: 163, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38090740

RESUMO

INTRODUCTION: Tobacco advertisement, promotion, and sponsorship (TAPS) in all forms influences youth smoking behaviors. TAPS exposure enhances their smoking frequency and vulnerability. A 2018 Indonesia Ministry of Health (MoH) Survey showed increased smoking prevalence among youth aged 10-18 years. Thus, our objective was to analyze the relationship between TAPS and the increased Indonesian youth smoking behavior. METHODS: We conducted a secondary analysis of the Indonesian 2019 Global Youth Tobacco Survey. The sample size differed in each variable: current smokers n=3386, ever smoker n=3666, and cigarette consumption per day n=1355. We adjusted for socioeconomic and demographic variables and used logistic regression with youth smoking prevalence as the outcome and TAPS variables as the primary exposures. RESULTS: The current male youth smoker prevalence was 38.3%, ever smoker was 67%, and high consumption per day smoker (≥2 cigarettes per day) was 39.1%. Youth respondents exposed to the promotion or sponsorship of cigarette products showed an increase in three smoking behaviors. In particular, when youth respondents were exposed to more than one type of cigarette promotion (AOR=1.67, 95% CI: 1.33-2.09) or noticed one type of cigarette sponsorship (AOR=2.06, 95% CI: 1.44-2.93), their odds of all three smoking behaviors (current smoker, ever smoker, and high consumption smoker) increased. CONCLUSIONS: TAPS increase smoking behaviors among Indonesian youth. Therefore, to protect Indonesian youth health in the future, strategic action is needed to reduce youth smoking by banning all forms of TAPS in Indonesia.

13.
Methods Mol Biol ; 2704: 173-181, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37642844

RESUMO

Determining the affinity and specificity of protein-lipid interactions is crucial for understanding the physiological function and mode of action of signaling lipids, including steroids. Here we describe a method that relies on microscale thermophoresis (MST) to monitor the binding of sterols and steroids to proteins. The protein of interest is expressed as a polyhistidine-tagged fusion in E. coli and purified by affinity chromatography on a nickel-based resin. The purified protein is then labeled with a fluorescent dye and incubated with a serial dilution of the lipid ligand. The protein-ligand interaction is monitored by MST, which detects the fraction of the protein bound to the ligand based on its altered mobility in a thermal gradient. A binding curve fitted to the measured data points is then used to calculate the corresponding dissociation constant.


Assuntos
Fitosteróis , Esteróis , Escherichia coli/genética , Ligantes , Esteroides
14.
Ultrasound Obstet Gynecol ; 62(4): 540-551, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37204929

RESUMO

OBJECTIVE: Monochorionic (MC) triplet pregnancies are extremely rare and information on these pregnancies and their complications is limited. We aimed to investigate the risk of early and late pregnancy complications, perinatal outcome and the timing and methods of fetal intervention in these pregnancies. METHODS: This was a multicenter retrospective cohort study of MC triamniotic (TA) triplet pregnancies managed in 21 participating centers around the world from 2007 onwards. Data on maternal age, mode of conception, diagnosis of major fetal structural anomalies or aneuploidy, gestational age (GA) at diagnosis of anomalies, twin-to-twin transfusion syndrome (TTTS), twin anemia-polycythemia sequence (TAPS), twin reversed arterial perfusion (TRAP) sequence and or selective fetal growth restriction (sFGR) were retrieved from patient records. Data on antenatal interventions were collected, including data on selective fetal reduction (three to two or three to one), laser surgery and any other active fetal intervention (including amniodrainage). Data on perinatal outcome were collected, including numbers of live birth, intrauterine demise, neonatal death, perinatal death and termination of fetus or pregnancy (TOP). Neonatal data such as GA at birth, birth weight, admission to neonatal intensive care unit and neonatal morbidity were also collected. Perinatal outcomes were assessed according to whether the pregnancy was managed expectantly or underwent fetal intervention. RESULTS: Of an initial cohort of 174 MCTA triplet pregnancies, 11 underwent early TOP, three had an early miscarriage, six were lost to follow-up and one was ongoing at the time of writing. Thus, the study cohort included 153 pregnancies, of which the majority (92.8%) were managed expectantly. The incidence of pregnancy affected by one or more fetal structural abnormality was 13.7% (21/153) and that of TRAP sequence was 5.2% (8/153). The most common antenatal complication related to chorionicity was TTTS, which affected just over one quarter (27.6%; 42/152, after removing a pregnancy with TOP < 24 weeks for fetal anomalies) of the pregnancies, followed by sFGR (16.4%; 25/152), while TAPS (spontaneous or post TTTS with or without laser treatment) occurred in only 4.6% (7/152) of pregnancies. No monochorionicity-related antenatal complication was recorded in 49.3% (75/152) of pregnancies. Survival was apparently associated largely with the development of these complications: there was at least one survivor beyond the neonatal period in 85.1% (57/67) of pregnancies without antenatal complications, in 100% (25/25) of those complicated by sFGR and in 47.6% (20/42) of those complicated by TTTS. The overall rate of preterm birth prior to 28 weeks was 14.5% (18/124) and that prior to 32 weeks' gestation was 49.2% (61/124). CONCLUSION: Monochorionicity-related complications, which can impact adversely perinatal outcome, occur in almost half of MCTA triplet pregnancies, creating a challenge with regard to counseling, surveillance and management. © 2023 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.

15.
J Med Case Rep ; 17(1): 28, 2023 Jan 29.
Artigo em Inglês | MEDLINE | ID: mdl-36709312

RESUMO

BACKGROUND: Twin anemia polycythemia sequence is a rare complication in monochorionic twin pregnancy. CASE PRESENTATION: We describe a case of dichorionic twin pregnancy presenting with suspected twin anemia polycythemia sequence. A 31-year-old White female, on her third pregnancy, had a routine ultrasound scan at 12 weeks gestation, which demonstrated a dichorionic twin pregnancy with one placenta located in the anterior wall and the other in the posterior wall of the uterus. At 21 weeks, a scan demonstrated a 24% growth discordance between the two fetuses with normal Doppler studies and amniotic fluid. At 27 weeks, one twin showed signs of anemia and the other polycythemia; the fetal middle cerebral artery peak systolic velocity was high in the anemic fetus and low in the polycythemic twin (1.8 and 0.5 multiples of the median). An intrauterine blood transfusion was carried out and this increased the fetal hemoglobin concentration in the anemic twin from 3.5 to 12.5 g/dL. At 29 weeks, delivery by cesarean section was carried out because of evidence from middle cerebral artery peak systolic velocity of recurrence of anemia in one twin and worsening polycythemia in the co-twin; at birth the hemoglobin concentrations were 5.6 and 24.9 g/dL, respectively. Histopathological examination confirmed dichorionicity with no communicating vessels between the two placentas. CONCLUSIONS: This is the first case of twin anemia polycythemia sequence in a dichorionic, diamniotic twin pregnancy where intrauterine blood transfusion was used to prolong the pregnancy by almost 2 weeks in a "twin anemia polycythemia sequence-like" setting.


Assuntos
Anemia , Transfusão Feto-Fetal , Policitemia , Recém-Nascido , Gravidez , Humanos , Feminino , Adulto , Gravidez de Gêmeos , Transfusão Feto-Fetal/complicações , Transfusão Feto-Fetal/diagnóstico por imagem , Cesárea/efeitos adversos , Policitemia/complicações , Policitemia/diagnóstico por imagem , Gêmeos Monozigóticos , Ultrassonografia Pré-Natal/efeitos adversos , Anemia/etiologia
16.
Artigo em Inglês | WPRIM (Pacífico Ocidental) | ID: wpr-998799

RESUMO

@#Introduction: Indonesia is one of the countries with the highest number of tobacco advertisements, promotion, and sponsorship (TAPS) across the globe, which play a significant role in increasing smoking prevalence. Since 2019, Klungkung District has adopted a TAPS ban at point of sale (PoS). Accordingly, this study aims to evaluate compliance with the total TAPS ban at PoS in Klungkung and the factors associated. Methods: This cross-sectional study was conducted in the Klungkung district from August to October 2021. The survey involved 200 samples of PoS and also the managers, which selected using stratified simple random sampling for registered PoS and a walking protocol for unregistered PoS. Data was collected through observation using a checklist and interview using a structured questionnaire by eight well-trained enumerators. Data were analyzed using SPSS. Results: The study successfully observed 200 PoS and also interviewed 200 PoS managers. The result showed the compliance was 72.5%. Of 9 factors analyzed using regression analysis, it was found that factors associated with the compliance were knowledge and attitude PoS manager toward TAPS ban (OR=11.3; CI:1.233-103.414; p=0.008), perceived of socio-economic impact factor (OR=8.1; CI:3.584-18.400; p<0.01), and tobacco industry interference (OR=2.8; CI:1.441-5.594; p=0,003). Conclusions: Compliance with the TAPS ban at PoS remain sufficient, even though it has not reached the target. Factors mainly associated with the compliance were the attitude of PoS manager, and tobacco industry interference. Hence, socialization and enforcement should be improved and sustained.

17.
Ultrasound Obstet Gynecol ; 60(6): 731-738, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36240516

RESUMO

OBJECTIVE: To ascertain maternal and perinatal outcomes of monochorionic twin pregnancies complicated by twin-twin transfusion syndrome (TTTS) treated with the Solomon technique compared with selective fetoscopic laser photocoagulation (SFLP) of placental anastomoses. METHODS: MEDLINE, EMBASE and The Cochrane Library were searched to identify relevant studies. The outcomes observed were perinatal loss and survival, preterm prelabor rupture of membranes (PPROM), preterm birth (PTB), gestational age (GA) at delivery, interval between laser treatment and delivery, maternal bleeding, septostomy or chorioamniotic separation, placental abruption, twin anemia-polycythemia sequence (TAPS), recurrence of TTTS, neonatal morbidity and neurological morbidity. Random-effects head-to-head meta-analyses were used to analyze the data. Pooled odds ratios (OR) and mean differences (MD) and their 95% CIs were calculated. RESULTS: Nine studies were included in the systematic review. There was generally no difference in the main maternal and pregnancy characteristics between pregnancies treated using the Solomon technique and those treated using SFLP of placental anastomoses. The risks of fetal loss (pooled OR, 0.69 (95% CI, 0.50-0.95); P = 0.023), neonatal death (pooled OR, 0.37 (95% CI, 0.16-0.84); P = 0.018) and perinatal loss (pooled OR, 0.56 (95% CI, 0.38-0.83); P = 0.004) were significantly lower in pregnancies treated using the Solomon technique than in those treated with SFLP. Likewise, pregnancies treated using the Solomon technique had a significantly higher chance of survival of at least one twin (pooled OR, 2.31 (95% CI, 1.03-5.19); P = 0.004) and double survival (pooled OR, 2.18 (95% CI, 1.29-3.70); P = 0.001). There was no difference in the risk of PPROM (P = 0.603), PPROM within 10 days from laser surgery (P = 0.982), PTB (P = 0.207), maternal bleeding (P = 0.219), septostomy or chorioamniotic separation (P = 0.224) or chorioamnionitis (P = 0.135) between the two groups, while the risk of placental abruption was higher in pregnancies treated using the Solomon technique (pooled OR, 2.90 (95% CI, 1.55-5.44); P = 0.001). In the Solomon technique group, pregnancies delivered at a significantly earlier GA than did those treated with SFLP (pooled MD, -0.625 weeks (95% CI, -0.90 to -0.35 weeks); P < 0.001), while there was no difference in the interval between laser treatment and delivery (P = 0.589). The rate of recurrence of TTTS was significantly lower in pregnancies undergoing the Solomon technique (pooled OR, 0.43 (95% CI, 0.22-0.81); P < 0.001), while there was no difference in the risk of TAPS between the two groups (P = 0.792). Finally, there was no difference in the overall risk of neonatal morbidity (P = 0.382) or neurological morbidity (P = 0.247) between the two groups. CONCLUSIONS: Monochorionic twin pregnancies complicated by TTTS undergoing laser treatment using the Solomon technique had a significantly higher survival rate and lower recurrence rate of TTTS but were associated with an increased risk of placental abruption and earlier GA at delivery compared to those treated with SFLP. © 2022 International Society of Ultrasound in Obstetrics and Gynecology.


Assuntos
Descolamento Prematuro da Placenta , Anemia , Transfusão Feto-Fetal , Terapia a Laser , Policitemia , Nascimento Prematuro , Feminino , Humanos , Recém-Nascido , Gravidez , Descolamento Prematuro da Placenta/epidemiologia , Descolamento Prematuro da Placenta/etiologia , Anemia/complicações , Transfusão Feto-Fetal/complicações , Fetoscopia/efeitos adversos , Fetoscopia/métodos , Idade Gestacional , Fotocoagulação a Laser/métodos , Terapia a Laser/efeitos adversos , Terapia a Laser/métodos , Lasers , Placenta/cirurgia , Policitemia/complicações , Gravidez de Gêmeos , Nascimento Prematuro/etiologia
18.
Front Immunol ; 13: 979491, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36091065

RESUMO

Hookworms infect more that 400 million people and cause significant socio-economic burden on endemic countries. The lack of efficient vaccines and the emergence of anthelminthic drug resistance are of major concern. Free-living hookworm larvae infect their hosts via the skin and live as adult worms in the small intestine where they feed on host tissue and blood. Excretory/secretory (E/S) products, released by helminths as they migrate through their host, are thought to play a key role in facilitating infection and successful establishment of parasitism. However, E/S products can also elicit protective immune responses that might be harnessed for vaccine development. By performing Western blots with serum of Nippostrongylus brasiliensis (Nb) infected mice as a model for human hookworm infection, we identified a largely overlapping set of IgG1- and IgE-reactive antigens in E/S from infective L3 stage larvae. Mass spectrometry analysis led to the identification of a new protein family with 6 paralogues in the Nb genome which we termed Nb-LSA1 for "Nippostrongylus brasiliensis larval secreted protein 1". The recombinantly expressed 17 kDa family member Nb-LSA1a was recognized by antibodies in the serum of Nb immune mice. Immunization of mice with Nb-LSA1a in alum elicited a strong IgG1 response but no detectable antigen-specific IgE. Most importantly, immunized mice were largely protected against a challenge Nb infection. This effect was dependent on the presence of basophils and occurred before the parasites reached the intestine. Therefore, basophils appear to play a critical role for rapid control of infection with L3 stage larvae in mice immunized with a single secreted larval protein. A better understanding of basophil-mediated protective immunity and identification of potent larval antigens of human hookworms could help to develop promising vaccination strategies.


Assuntos
Antígenos de Helmintos , Basófilos , Ancylostomatoidea , Animais , Humanos , Imunoglobulina E , Imunoglobulina G , Larva , Camundongos , Nippostrongylus
19.
Ginekol Pol ; 93(9): 742-749, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35072241

RESUMO

OBJECTIVES: Processing of available information on TAPS with a focus on the evaluation of the most sensitive and most specific prenatal diagnostic test. MATERIAL AND METHODS: Retrospective analysis of available publications on TAPS with their meta-analytical processing through available electronic medical databases. Evaluation of the most sensitive and specific prenatal diagnostic test with graphical processing of sensitivity and specificity values ​​depending on the TAPS diagnostic criteria used. RESULTS: In total, we found 165 available articles, the oldest from 2007 and the most recent from 2020. Based on the available articles, we evaluated the determination of MCA-PSV with a sensitivity of 83% and a specificity of up to 100% for the currently generally accepted diagnostic criterion TAPS - Delta MCA-PSV > 0.5MoM as the most sensitive and specific method of prenatal diagnosis. CONCLUSIONS: The serial determination of MCA-PSV represents the most sensitive and specific prenatal diagnostic test to date (2020) based on available knowledge. Serial measurement of the MCA-PSV since gestational week 20 every two weeks until delivery represents a potential TAPS screening test for all monochorionic pregnancies. The late, or postnatal diagnosis of TAPS can have serious consequences in the form of intrauterine death of the foetus(es) and increased perinatal mortality and morbidity.


Assuntos
Anemia , Transfusão Feto-Fetal , Policitemia , Anemia/diagnóstico , Velocidade do Fluxo Sanguíneo , Feminino , Humanos , Artéria Cerebral Média/diagnóstico por imagem , Policitemia/complicações , Policitemia/diagnóstico , Gravidez , Gravidez de Gêmeos , Diagnóstico Pré-Natal , Estudos Retrospectivos , Gêmeos Monozigóticos , Ultrassonografia Pré-Natal/métodos
20.
J Public Health Afr ; 13(Suppl 2): 2409, 2022 Dec 07.
Artigo em Inglês | MEDLINE | ID: mdl-37497142

RESUMO

The prevalence of teen smokers has increased during the Covid-19 pandemic. Smoking behavior occurs due to exposure to advertising and the promotion of cigarettes. This quantitative research was conducted using cross-sectional approach. The purpose of the study was to analyze the relationship between advertising exposure and cigarette promotion on adolescent smoking behavior in Malang Regency during the pandemic using the chi-square test. Random sampling on students from several high schools or equal degree in the Kepanjen District was done with a total of 145 respondents. The results showed that there was no significant relationship between age, types of cigarette advertising media at the point of sale, outdoor media, social media, internet, and newspapers or magazines by adolescent smoking behavior during the Covid-19 pandemic (p-value > 0.05). Exposure to cigarette advertisements on television, total exposure to cigarette advertisements, cigarette promotion, and gender had a significant relationship with adolescent smoking behavior during the pandemic (p value < 0.05). Adolescents are quite highly exposed to the various types of advertisements and promotions of cigarettes that can influence increased smoking behavior during the pandemic.

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