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1.
Am J Pharm Educ ; 88(5): 100698, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38588974

RESUMEN

OBJECTIVE: One of the barriers that might prevent an underrepresented minority (URM) individual from pursuing a professional career in the United States is finances. The high disproportionate burden of student debt among URM students further perpetuates the racial wealth gap. Therefore, this study sought to evaluate the extent to which URM students' personal finance perceptions, and current and projected student loan indebtedness affect postgraduation career intentions. METHODS: A cross-sectional analysis was conducted using data from four cohorts of pharmacy students using a survey from November 2, 2022, to February 1, 2023. The financial perception survey included subscales namely personal finance self-efficacy, debt influence and pressure, and risk mitigation and retirement. Descriptive statistics, simple logistic regression, and multivariate logistic regression analyses were conducted. RESULTS: In total, 93 students completed the survey and had a mean age of 28.1 ± 5.3 years. Seventy-one percent of the respondents were female, and 67.7 % had completed a 4-year bachelor's degree. There was a significant association between age and the intention to pursue postgraduate training as well as a significant association between risk mitigation and retirement perceptions and intention to pursue postgraduate training after adjusting for other factors. CONCLUSION: Among students from largely minority backgrounds, age, and confidence in their ability to make wise investment decisions for retirement are associated with a greater likelihood of pursuing postgraduate training opportunities.


Asunto(s)
Selección de Profesión , Grupos Minoritarios , Facultades de Farmacia , Estudiantes de Farmacia , Adulto , Femenino , Humanos , Masculino , Adulto Joven , Negro o Afroamericano/psicología , Negro o Afroamericano/estadística & datos numéricos , Estudios Transversales , Educación en Farmacia/economía , Grupos Minoritarios/psicología , Grupos Minoritarios/estadística & datos numéricos , Facultades de Farmacia/economía , Estudiantes de Farmacia/psicología , Encuestas y Cuestionarios , Estados Unidos , Universidades
2.
bioRxiv ; 2024 Mar 16.
Artículo en Inglés | MEDLINE | ID: mdl-38559099

RESUMEN

Mosquitoes occupy a wide range of habitats where they experience various environmental conditions. The ability of some species, such as the tiger mosquito, Aedes albopictus, to adapt to local conditions certainly contributes to their invasive success. Among traits that remain to be examined, mosquitoes' ability to time their activity with that of the local host population has been suggested to be of significant epidemiological importance. However, whether different populations display heritable differences in their chronotype has not been examined. Here, we compared laboratory strains originating from 8 populations from 3 continents, monitored their spontaneous locomotor activity patterns, and analyzed their sleep-like states. Overall, all strains showed conserved diurnal activity concentrated in the hours preceding the crepuscule. Similarly, they all showed increased sleep levels during the morning and night hours. However, we observed strain-specific differences in the activity levels at each phase of the day. We also observed differences in the fraction of time that each strain spends in a sleep-like state, explained by variations in the sleep architecture across strains. Human population density and the latitude of the site of geographic origin of the tested strain showed significant effects on sleep and activity patterns. Altogether, these results suggest that Ae. albopictus mosquitoes adapt to local environmental conditions via heritable adaptations of their chronotype.

3.
J Med Entomol ; 61(1): 110-120, 2024 01 12.
Artículo en Inglés | MEDLINE | ID: mdl-37889857

RESUMEN

Ticks are blood-feeding arthropods responsible for the transmission of disease-causing pathogens to a wide range of vertebrate hosts, including livestock and humans. Tick-borne diseases have been implicated in significant economic losses to livestock production, and this threat will increase as these obligate parasites widen their geographical ranges. Similar to other ectotherms, thermal stress due to changing global temperatures has been shown to influence tick survival and distribution. However, studies on the influence of extreme temperatures in ticks have focused on advanced, mobile stages, ignoring immobile stages that cannot move to more favorable microhabitats. In this study, low- and high-temperature regimens were assessed in relation to egg viability for hard tick species-Amblyomma maculatum (Gulf Coast tick), Ixodes scapularis (black-legged tick), Dermacentor variabilis (American dog tick), and Rhipicephalus sanguineus (Brown dog tick). Tick eggs exposed early in development (freshly laid during early embryo development) were significantly more susceptible to thermal stress when compared with those exposed later in development (late embryo development denoted by a fecal spot). Based on our studies, differences in egg hatching success among treatments were greater than in hatching success when comparing species. Lastly, there was evidence of extreme thermal exposure significantly altering the hatching times of tick eggs for specific treatments. These results provide insights into the critical period for tick egg viability in relation to thermal exposure and tick survival associated with stress and climate change.


Asunto(s)
Dermacentor , Enfermedades de los Perros , Ixodes , Ixodidae , Rhipicephalus sanguineus , Infestaciones por Garrapatas , Enfermedades por Picaduras de Garrapatas , Perros , Humanos , Animales , Amblyomma , Infestaciones por Garrapatas/veterinaria
4.
bioRxiv ; 2023 Nov 02.
Artículo en Inglés | MEDLINE | ID: mdl-37961082

RESUMEN

Parasites harm host fitness and are pervasive agents of natural selection. Host defensive traits in natural populations typically show genetic variation, which may be maintained when parasite resistance imposes fitness costs on the host coupled with variability in parasite prevalence in space and/or time. Previously we demonstrated significant evolutionary responses to artificial selection for increasing behavioral immunity to Gamasodes queenslandicus mites in replicate lines of Drosophila melanogaster . Here, we report transcriptional shifts in metabolic processes between selected and control fly lines based on RNA-seq analyses. We also show decreased starvation resistance and increased use of nutrient reserves in flies from mite-resistant lines. Additionally, mite-resistant lines exhibited increased behavioral activity, reduced sleep and elevated oxygen consumption under conditions of darkness. The link between resistance and sleep was confirmed in an independent panel of D. melanogaster genetic lines exhibiting variable sleep durations, showing a positive correlation between mite resistance and reduced sleep. Experimentally restraining the activity of artificially selected mite-resistant flies during exposure to parasites under dark conditions reduced their resistance advantage relative to control flies. The results suggest that ectoparasite resistance in this system involves increased dark-condition activity and metabolic gene expression at the expense of nutrient reserves and starvation resistance.

5.
Integr Comp Biol ; 63(3): 530-547, 2023 09 15.
Artículo en Inglés | MEDLINE | ID: mdl-37429615

RESUMEN

Understanding the biology of blood-feeding arthropods is critical to managing them as vectors of etiological agents. Circadian rhythms act in the regulation of behavioral and physiological aspects such as blood feeding, immunity, and reproduction. However, the impact of sleep on these processes has been largely ignored in blood-feeding arthropods, but recent studies in mosquitoes show that sleep-like states directly impact host landing and blood feeding. Our focus in this review is on discussing the relationship between sleep and circadian rhythms in blood-feeding arthropods along with how unique aspects such as blood gluttony and dormancy can impact sleep-like states. We highlight that sleep-like states are likely to have profound impacts on vector-host interactions but will vary between lineages even though few direct studies have been conducted. A myriad of factors, such as artificial light, could directly impact the time and levels of sleep in blood-feeding arthropods and their roles as vectors. Lastly, we discuss underlying factors that make sleep studies in blood-feeding arthropods difficult and how these can be bypassed. As sleep is a critical factor in the fitness of animal systems, a lack of focus on sleep in blood-feeding arthropods represents a significant oversight in understanding their behavior and its role in pathogen transmission.


Asunto(s)
Artrópodos , Condicionamiento Físico Animal , Animales , Artrópodos/fisiología , Sueño , Ritmo Circadiano/fisiología , Biología
6.
Afr J Paediatr Surg ; 20(1): 80-82, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36722576

RESUMEN

Cysts of the prepuce are rare, and documented reports from the English literature are mostly from Asia. Presentations in children are worrisome to the parents. We report a case of a preputial cyst occurring in a neonate who was brought to our facility due to parental anxiety. After a thorough clinical evaluation, a freehand circumcision technique was performed which allowed exposure of the full extent of the cyst, the external urethral meatus and the glans, thus ensuring complete excision and minimising the risk of injury to the adjoining structures. We postulate that preputial cysts are rare in Africa due to the universality of circumcision, which is one of the options of treatment. Preputial cysts are benign foreskin cystic lesions that can be effectively treated with circumcision. This is probably the first reported case of a benign epithelioid preputial cyst from Africa. The paucity of reported cases may be due to the universal practice of circumcision in most of Africa.


Asunto(s)
Circuncisión Masculina , Quistes , Niño , Masculino , Recién Nacido , Humanos , África , Quistes/cirugía , Prepucio , Padres
7.
Biomarkers ; 28(2): 177-189, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36511112

RESUMEN

IntroductionDiabetes mellitus is still a raging disease not fully subdued globally, especially in Africa. Our study aims to evaluate the anti-diabetic potentials of Justicia carnea extracts [crude (JCC), free (JFP) and bound phenol (JBP) fractions], in streptozotocin (STZ)-induced type-1 diabetes in male albino rats.Materials and MethodsAbout thirty (30) animals were induced for type 1 diabetes with STZ; thereafter, treatment began for 14 days, after which the animals were euthanized, blood/serum was collected, the liver was removed and divided into two portions, for biochemical and histopathological analyses. Standard procedures were used to evaluate the liver biomarkers, like alanine transaminase (ALT), fructose-1,6-bisphosphatase, glucose-6- phosphatase, hexokinase activities, albumin, bilirubin, hepatic glucose concentrations; antioxidant status and pro- and anti-inflammatory cytokines were similarly assessed.ResultsThese results revealed that the extracts ameliorated the harmful effects of STZ-induced diabetes in the liver by enhancing the activities of liver-based biomarkers, reducing the concentrations of pro-inflammatory cytokines and increasing the anti-inflammatory cytokine.DiscussionThe results agreed with previous research, and the free phenol fraction showed excellent results compared to othersConclusionThese suggested that J. carnea could serve as an alternative remedy in ameliorating liver complications linked to oxidative damage and inflammation in STZ-induced type-1 diabetes.


Asunto(s)
Carcinoma Hepatocelular , Diabetes Mellitus Experimental , Diabetes Mellitus Tipo 1 , Género Justicia , Neoplasias Hepáticas , Animales , Masculino , Antioxidantes/farmacología , Antioxidantes/metabolismo , Biomarcadores/metabolismo , Glucemia/metabolismo , Carcinoma Hepatocelular/complicaciones , Citocinas/metabolismo , Diabetes Mellitus Experimental/complicaciones , Diabetes Mellitus Tipo 1/tratamiento farmacológico , Diabetes Mellitus Tipo 1/complicaciones , Diabetes Mellitus Tipo 1/metabolismo , Glucosa/metabolismo , Glucosa/farmacología , Inflamación/metabolismo , Género Justicia/metabolismo , Hígado/metabolismo , Neoplasias Hepáticas/patología , Estrés Oxidativo , Fenoles , Estreptozocina/metabolismo , Estreptozocina/farmacología , Ratas
8.
J Surg Res ; 284: 186-192, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36580879

RESUMEN

INTRODUCTION: The Surgeons OverSeas Assessment of Surgical Needs (SOSAS) survey tool is used to determine the unmet surgical needs in the community and has been validated in several countries. A major weakness is the absence of an objective assessment to verify patient-reported surgically treatable conditions. The goal of this study was to determine whether a picture portfolio, a tool previously shown to improve parental recognition of their child's congenital deformity, could improve the accuracy of the SOSAS tool by how it compares with physical examination. This study focused on children as many surgical conditions in them require prompt treatment but are often not promptly diagnosed. METHODS: We conducted a descriptive cross-sectional community-based study to determine the prevalence of congenital and acquired surgical conditions among children and adults in a mixed rural-urban area of Lagos, Southwest Nigeria. The picture portfolio was administered only to children and the surgical conditions to be assessed were predetermined using an e-Delphi process among pediatric surgeons. The modified The Surgeons OverSeas Assessment of Surgical Needs-Nigeria Survey Tool (SOSAS-NST) was administered to household members to collect other relevant data. Data were analyzed using the REDCap analytic tool. RESULTS: Eight hundred and fifty-six households were surveyed. There were 1984 adults (49.5%) and 2027 children (50.5%). Thirty-six children met the predetermined criteria for the picture portfolio-hydrocephalus (n = 1); lymphatic malformation (n = 1); umbilical hernia (n = 14); Hydrocele (n = 5); inguinal hernia (n = 10) and undescended testes (n = 5). The picture portfolio predicted all correctly except a case of undescended testis that was mistaken for a hernia. The sensitivity of the picture portfolio was therefore 35/36 or 97.2%. CONCLUSIONS: The SOSAS-NST has improved on the original SOSAS tool and within the limits of the small numbers, the picture portfolio has a high accuracy in predicting diagnosis in children in lieu of physical examination.


Asunto(s)
Accesibilidad a los Servicios de Salud , Necesidades y Demandas de Servicios de Salud , Masculino , Niño , Adulto , Humanos , Estudios Transversales , Evaluación de Necesidades , Nigeria
9.
Niger Postgrad Med J ; 29(4): 310-316, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36308260

RESUMEN

Background: Male circumcision is the most common surgical procedure worldwide and is often carried out for religious, cultural, medical and public health reasons. It is commonly performed during the neonatal period. Many studies have now shown that pain is a common intra- and post-operative complication. To ensure proper analgesia during the procedure, many surgeons opt for the use of pacifiers as an adjunct to anaesthesia during neonatal circumcision. The aim of this study is to compare nutritive pacifiers (NPs) versus non-NPs (NNPs) as adjuncts to local anaesthesia in male neonatal circumcision using the Plastibell technique. Methods: A prospective randomised controlled study was carried out between October 2019 and March 2020. A total of 100 neonates were circumcised using the Plastibell technique and randomised into NP (Group A, n = 33), NNP (Group B, n = 33) and controls (Group C, n = 34), respectively. The differences in pain scores using the Neonatal Infant Pain Scale, total crying time and heart rate during circumcision were recorded and assessed. Results: The age of participants ranged from 5 to 28 days and the weight ranged from 2.5 to 5.0 kg. The overall mean age, birth weight and current weight of the participants were 15.5 ± 6.1 days, 3.4 ± 0.4 kg and 3.5 ± 0.6 kg, respectively. The control group had the highest average pain score of 5.5 (4.5-5.8) compared to the intervention groups with median pain score (NP: 3.3 [1.3-4.3] and (NNP: 4.3 [3.1-5.1], respectively). NPs had significantly lower pain scores (P = 0.023) and reduced total crying time (P = 0.019) at all stages of the circumcision compared to those given NNPs and controls. Conclusion: This study showed that NPs were superior to NNPs in providing additional pain control during male neonatal circumcision.


Asunto(s)
Circuncisión Masculina , Lactante , Recién Nacido , Masculino , Humanos , Circuncisión Masculina/efectos adversos , Circuncisión Masculina/métodos , Anestesia Local/efectos adversos , Estudios Prospectivos , Chupetes/efectos adversos , Nigeria , Dolor/etiología
10.
Sci Rep ; 12(1): 13261, 2022 08 02.
Artículo en Inglés | MEDLINE | ID: mdl-35918406

RESUMEN

The requirement for easily adoptable technology for fruit preservation in developing countries is paramount. This study investigated the effect of pre-treatment (warm water blanching time-3, 5 and 10 min at 60 °C) and drying temperature (50, 60 and 70 °C) on drying mechanisms of convectively dried Synsepalum dulcificum (miracle berry fruit-MBF) fruit. Refined Adaptive Neuro Fuzzy Inference System (ANFIS) was utilized to model the effect and establish the sensitivity of drying factors on the moisture ratio variability of MBF. Unblanched MBF had the longest drying time, lowest effective moisture diffusivity (EMD), highest total and specific energy consumption of 530 min, 5.1052 E-09 m2/s, 22.73 kWh and 113.64 kWh/kg, respectively at 50 °C drying time, with lowest activation energy of 28.8589 kJ/mol. The 3 min blanched MBF had the lowest drying time, highest EMD, lowest total and specific energy consumption of 130 min, 2.5607 E-08 m2/s, 7.47 kWh and 37 kWh/kg, respectively at 70 °C drying temperature. The 5 min blanched MBF had the highest activation energy of 37.4808 kJ/mol. Amongst others, 3-gbellmf-38 epoch ANFIS structure had the highest modeling and prediction efficiency (R2 = 0.9931). The moisture ratio variability was most sensitive to drying time at individual factor level, and drying time cum pretreatment at interactive factors level. In conclusion, pretreatment significantly reduced the drying time and energy consumption of MBF. Refined ANFIS structure modeled and predicted the drying process efficiently, and drying time contributed most significantly to the moisture ratio variability of MBF.


Asunto(s)
Synsepalum , Desecación , Frutas/química , Temperatura , Agua/análisis
11.
Afr J Paediatr Surg ; 19(3): 137-143, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35775513

RESUMEN

Background: A technique that offers the best chance of an optimal result is most appropriate to be employed for wound closure. Aims: We set out to compare the cosmetic outcome, and wound complication rates associated with clean paediatric groin wounds closed using Steri-Strip™ or subcuticular suturing. Settings and Design: A prospective randomised study. Subjects and Methods: Children of African descent with unilateral and bilateral clean groin wounds were randomised into subcuticular suture skin closure and Steri-Strip™ groups and followed up postoperatively. Cosmetic assessment and outcome were scored based on parents' satisfaction using the visual analogue scale (VAS) and a single Plastic Surgeon assessed pictures of the scars using the Hollander Wound Evaluation Scale (HWES). Statistical analysis was used SPSS version 18. Results: Seventy-five wounds were assessed, (n = 35, Steri-Strips™) and (n = 40, suturing). Closure with Steri-Strips resulted in scars with comparable cosmesis as those with subcuticular suturing. Wound complications were also similar. There was no statistically significant difference between mean VAS scores on the 5th day (P = 0.320), 2nd week (P = 0.080), 4th week (P = 0.070) and 8th week (P = 0.080). The HWES scores were also comparable at those times. Conclusions: We conclude that skin closure of clean paediatric groin wounds with SteriStrips™ gives comparative cosmetic outcomes with subcuticular suturing.


Asunto(s)
Cicatriz , Adhesivos Tisulares , Niño , Cicatriz/etiología , Ingle/cirugía , Humanos , Estudios Prospectivos , Suturas/efectos adversos
12.
J Exp Biol ; 225(11)2022 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-35502753

RESUMEN

Sleep is an evolutionarily conserved process that has been described in different animal systems. For insects, sleep characterization has been primarily achieved using behavioral and electrophysiological correlates in a few systems. Sleep in mosquitoes, which are important vectors of disease-causing pathogens, has not been directly examined. This is surprising as circadian rhythms, which have been well studied in mosquitoes, influence sleep in other systems. In this study, we characterized sleep in mosquitoes using body posture analysis and behavioral correlates, and quantified the effect of sleep deprivation on sleep rebound, host landing and blood-feeding propensity. Body and appendage position metrics revealed a clear distinction between the posture of mosquitoes in their putative sleep and awake states for multiple species, which correlated with a reduction in responsiveness to host cues. Sleep assessment informed by these posture analyses indicated significantly more sleep during periods of low activity. Night-time and daytime sleep deprivation resulting from the delivery of vibration stimuli induced sleep rebound in the subsequent phase in day and night active mosquitoes, respectively. Lastly, sleep deprivation suppressed host landing in both laboratory and field settings, and impaired blood feeding of a human host when mosquitoes would normally be active. These results suggest that quantifiable sleep states occur in mosquitoes and highlight the potential epidemiological importance of mosquito sleep.


Asunto(s)
Culicidae , Animales , Culicidae/fisiología , Conducta Alimentaria/fisiología , Mosquitos Vectores/fisiología , Sueño , Privación de Sueño
13.
Niger Postgrad Med J ; 29(2): 102-109, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35488577

RESUMEN

Background: The impact of the corona virus disease 2019 (COVID-19) pandemic on global health, has reached far beyond that caused by the disease itself. With ongoing mutations and the emergence of new strains of the virus alongside repeated waves of the pandemic, the full impact of the pandemic is still evolving and remains difficult to predict or evaluate. In paediatric surgery, it has led to significant disruptions in patient care, the extent and consequence of which are not fully documented in Nigeria. Aim: This study aims to evaluate the impact of COVID-19 on services, training and research in a busy paediatric surgery unit during the initial 3-month period of the COVID-19 pandemic lockdown. Methods: This study was an ambispective evaluation of the preceding 3 months before lockdown and the initial 3 months of lockdown. Clinic cancellations, elective and emergency surgeries, delays in access, extra cost of care to patients, impact on training and research, and the psychologic impact of the pandemic on staff and guardians were evaluated. Results: During the 3-month lockdown period, an estimated 78 new cases and 637 follow-up cases could not access care. Ninety-seven elective surgeries in 91 patients were postponed. Two (2.2%) patients' symptoms progressed. All emergency patients received care. Out-of-pocket expenditure increased averagely by $124. The pandemic contributed to delays in seeking (13%), reaching (20%) and receiving care (6%). Trainee participation in surgeries was reduced and academic programmes were suspended. Five staff were exposed to the virus and 3 infected. Conclusion: Paediatric surgery has been negatively impacted by COVID-19. Efforts must focus on planning and implementing interventions to mitigate the long-term impact.


Asunto(s)
COVID-19 , Gripe Humana , COVID-19/epidemiología , Niño , Control de Enfermedades Transmisibles , Humanos , Gripe Humana/epidemiología , Nigeria/epidemiología , Pandemias , Centros de Atención Terciaria
14.
Afr J Paediatr Surg ; 19(2): 83-88, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35017377

RESUMEN

BACKGROUND: Over the last two decades, there has been significant improvement in the outcomes of children with Wilms' tumour (WT) in high income countries (HICs) with approximately 85% survival rate globally. This is partly attributable to a multi-disciplinary team approach to care and the evolution of more robust treatment measures. A previous review in our centre prior to multi-disciplinary team shows a survival rate of 31.48%, However, the survival rates from low- and middle-income countries are still low when compared to HICs due to delays in access to care at all levels, poor to non-existent health insurance coverage, limited workforce resources, weak health-care systems and infrastructure. The aim of this study is to determine the impact of a multi-disciplinary team approach on the treatment outcomes of children with WT. METHODOLOGY: This is a 5-year retrospective review of all patients managed with WT at the Lagos University Teaching Hospital, Lagos, Nigeria. Information was extracted from the patients' case notes, operation notes and ward admission records. The data were analysed with SPSS 25, and P < 0.05 was considered to be statistically significant. RESULTS: Forty patients were included in the study; male to female ratio was 1.6:1. The disease occurred in the right kidney in 23 patients (57.5%) and on the left in 17 patients (42.5%). The average duration of symptoms before presentation was 3.6 months (range 1-7 months), majority of patients presented with abdominal masses and were assessed as per unit protocol with abdominal Computerized tomography scan, chest X-ray and abdominal ultrasound scan to assign the patient International Society of Paediatric oncology regimen. The predominant stage at surgery was Stage III 26 (65%), while Stage IV was 9 (22.5%). Morbidity after chemotherapy was 10 (25%). Twenty-five patients (63%) completed chemotherapy while 15 patients (37%) started chemotherapy but defaulted midway. The 5-year survival rate was 75%. Increasing age and male sex were associated with reduced odds of mortality; however, this was not statistically significant. Increased duration of treatment, being treated with chemotherapy alone, as well as advanced tumour stage and histology were associated with increased odds of mortality, however, this was not statistically significant. CONCLUSION: The development of an institutional WT treatment pathway involving a multidisciplinary team has resulted in improved outcomes. There is need for increased community awareness to improve the time to presentation.


Asunto(s)
Neoplasias Renales , Tumor de Wilms , Femenino , Humanos , Lactante , Riñón , Neoplasias Renales/terapia , Masculino , Nigeria , Estudios Retrospectivos , Tumor de Wilms/terapia
15.
J Exp Biol ; 224(14)2021 07 15.
Artículo en Inglés | MEDLINE | ID: mdl-34297110

RESUMEN

Rapid hardening is a process that quickly improves an animal's performance following exposure to potentially damaging stress. In this study of the Antarctic midge, Belgica antarctica (Diptera, Chironomidae), we examined how rapid hardening in response to dehydration (RDH) or cold (RCH) improves male pre- and post-copulatory function when the insects are subsequently subjected to a damaging cold exposure. Neither RDH nor RCH improved survival in response to lethal cold stress, but male activity and mating success following sublethal cold exposure were enhanced. Egg viability decreased following direct exposure of the mating males to sublethal cold but improved following RCH and RDH. Sublethal cold exposure reduced the expression of four accessory gland proteins, while expression remained high in males exposed to RCH. Though rapid hardening may be cryptic in males, this study shows that it can be revealed by pre- and post-copulatory interactions with females.


Asunto(s)
Chironomidae , Aclimatación , Animales , Regiones Antárticas , Frío , Cortejo , Femenino , Fertilidad , Larva , Masculino
16.
EClinicalMedicine ; 32: 100727, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33554094

RESUMEN

BACKGROUND: Global assessment of antimicrobial agents prescribed to infants in the neonatal intensive care unit (NICU) may inform antimicrobial stewardship efforts. METHODS: We conducted a one-day global point prevalence study of all antimicrobials provided to NICU infants. Demographic, clinical, and microbiologic data were obtained including NICU level, census, birth weight, gestational/chronologic age, diagnoses, antimicrobial therapy (reason for use; length of therapy), antimicrobial stewardship program (ASP), and 30-day in-hospital mortality. FINDINGS: On July 1, 2019, 26% of infants (580/2,265; range, 0-100%; median gestational age, 33 weeks; median birth weight, 1800 g) in 84 NICUs (51, high-income; 33, low-to-middle income) from 29 countries (14, high-income; 15, low-to-middle income) in five continents received ≥1 antimicrobial agent (92%, antibacterial; 19%, antifungal; 4%, antiviral). The most common reasons for antibiotic therapy were "rule-out" sepsis (32%) and "culture-negative" sepsis (16%) with ampicillin (40%), gentamicin (35%), amikacin (19%), vancomycin (15%), and meropenem (9%) used most frequently. For definitive treatment of presumed/confirmed infection, vancomycin (26%), amikacin (20%), and meropenem (16%) were the most prescribed agents. Length of therapy for culture-positive and "culture-negative" infections was 12 days (median; IQR, 8-14) and 7 days (median; IQR, 5-10), respectively. Mortality was 6% (42%, infection-related). An NICU ASP was associated with lower rate of antibiotic utilization (p = 0·02). INTERPRETATION: Global NICU antibiotic use was frequent and prolonged regardless of culture results. NICU-specific ASPs were associated with lower antibiotic utilization rates, suggesting the need for their implementation worldwide. FUNDING: Merck & Co.; The Ohio State University College of Medicine Barnes Medical Student Research Scholarship.

17.
Trends Parasitol ; 36(11): 888-897, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-32952061

RESUMEN

Sleep is a phenomenon conserved across the animal kingdom, where studies on Drosophila melanogaster have revealed that sleep phenotypes and molecular underpinnings are similar to those in mammals. However, little is known about sleep in blood-feeding arthropods, which have a critical role in public health as disease vectors. Specifically, sleep studies in mosquitoes are lacking despite considerable focus on how circadian processes, which have a central role in regulating sleep/wake cycles, impact activity, feeding, and immunity. Here, we review observations which suggest that sleep-like states likely occur in mosquitoes and discuss the potential role of sleep in relation to mosquito biology and their ability to function as disease vectors.


Asunto(s)
Ritmo Circadiano/fisiología , Culicidae/fisiología , Mosquitos Vectores/fisiología , Sueño/fisiología , Enfermedades Transmitidas por Vectores/parasitología , Enfermedades Transmitidas por Vectores/transmisión , Animales , Culicidae/genética , Mosquitos Vectores/genética , Sueño/genética
18.
World J Surg ; 44(5): 1400-1411, 2020 05.
Artículo en Inglés | MEDLINE | ID: mdl-31907571

RESUMEN

BACKGROUND: There is a huge difference in the standard of surgical training in different countries around the world. The disparity is more obvious in the various models of surgical training in low- and middle-income countries (LMICs) compared to high-income countries. Although the global training model of surgeons is evolving from an apprenticeship model to a competency-based model with additional training using simulation, the training of surgeons in LMICs still lacks a standard pathway of training. METHODS: This is a qualitative, descriptive, and collaborative study conducted in six LMICs across Asia, Africa, and South America. The data were collected on the status of surgical education in these countries as per the guidelines designed for the ASSURED project along with plans for quality improvement in surgical education in these countries. RESULTS: The training model in these selected LMICs appears to be a hybrid of the standard models of surgical training. The training models were tailored to the country's need, but many fail to meet international standards. There are many areas identified that can be addressed in order to improve the quality of surgical education in these countries. CONCLUSIONS: Many areas need to be improved for a better quality of surgical training in LMICs. There is a need of financial, technical, and research support for the improvement in these models of surgical education in LMICs.


Asunto(s)
Cirugía General/educación , Cooperación Internacional , Mejoramiento de la Calidad , Países en Desarrollo , Humanos , Sociedades Médicas , Cirujanos/educación
19.
Int J Surg Case Rep ; 77: 686-691, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33395874

RESUMEN

INTRODUCTION: Pancreatitis is a dire clinical diagnosis with variable presentation in the paediatric population. Moreover, neonatal pancreatitis has been rarely reported in the English literature. PRESENTATION OF CASE: A newborn, product of a poorly supervised, pre-term gestation with pre-natally diagnosed intestinal obstruction, and post-natal clinical features of jaundice, vomiting, abdominal distension, aphonation and suspected chromosomal abnormalities. There was maternal hepatitis which was untreated. Diagnosed as duodenal atresia, the baby was investigated, resuscitated and had surgery. Intra-operative findings were of an omental bubble, duodenal stenosis with annular pancreas, coagulative necrosis of the pancreas and multiple intra peritoneal cheesy deposits. Following an unfortunate demise, autopsy confirmed pancreatitis and multiple congenital abnormalities. DISCUSSION: Paediatric caregivers should be aware of the possibility of neonatal pancreatitis in jaundiced newborns with intestinal obstruction especially with a background of maternal viraemia. CONCLUSION: A constellation of unusual presentations as highlighted could be a pointer to an emerging syndrome. All paediatric caregivers should entertain a high index of suspicion of pancreatitis in such a case, investigate and expedite appropriate interventions to prevent mortality.

20.
PLoS One ; 14(10): e0223423, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31600252

RESUMEN

BACKGROUND: In many low- and middle-income countries, data on the prevalence of surgical diseases have been derived primarily from hospital-based studies, which may lead to an underestimation of disease burden within the community. Community-based prevalence studies may provide better estimates of surgical need to enable proper resource allocation and prioritization of needs. This study aims to assess the prevalence of common surgical conditions among children in a diverse rural and urban population in Nigeria. METHODS: Descriptive cross-sectional, community-based study to determine the prevalence of congenital and acquired surgical conditions among children in a diverse rural-urban area of Nigeria was conducted. Households, defined as one or more persons 'who eat from the same pot' or slept under the same roof the night before the interview, were randomized for inclusion in the study. Data was collected using an adapted and modified version of the interviewer-administered questionnaire-Surgeons OverSeas Assessment of Surgical Need (SOSAS) survey tool and analysed using the REDCap web-based analytic application. MAIN RESULTS: Eight-hundred-and-fifty-six households were surveyed, comprising 1,883 children. Eighty-one conditions were identified, the most common being umbilical hernias (20), inguinal hernias (13), and wound injuries to the extremities (9). The prevalence per 10,000 children was 85 for umbilical hernias (95% CI: 47, 123), and 61 for inguinal hernias (95% CI: 34, 88). The prevalence of hydroceles and undescended testes was comparable at 22 and 26 per 10,000 children, respectively. Children with surgical conditions had similar sociodemographic characteristics to healthy children in the study population. CONCLUSION: The most common congenital surgical conditions in our setting were umbilical hernias, while injuries were the most common acquired conditions. From our study, it is estimated that there will be about 2.9 million children with surgically correctable conditions in the nation. This suggests an acute need for training more paediatric surgeons.


Asunto(s)
Creación de Capacidad , Pediatría , Población Rural , Cirujanos , Encuestas y Cuestionarios , Población Urbana , Adulto , Niño , Femenino , Humanos , Masculino , Nigeria/epidemiología , Prevalencia
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