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3.
Environ Entomol ; 53(2): 199-212, 2024 Apr 11.
Article in English | MEDLINE | ID: mdl-38284422

ABSTRACT

With increasingly fewer insecticides registered to control the larvae of pest click beetles (Coleoptera: Elateridae), integrative beetle management, including pheromone- and light-based trapping of adult beetles, must be explored as an alternative strategy. Here, we analyzed the spectral sensitivity and color preference of 9 elaterids across 6 genera in electrophysiological recordings and in behavioral bioassays. In electroretinogram recordings (ERGs), dark-adapted beetles were exposed to narrow wavebands of light in 10-nm increments from 330 to 650 nm. All beetles proved most sensitive to green (515-538 nm) and ultraviolet (UV) light (~360 nm). In 4-choice bioassay arenas with 3 light emitting diodes (LEDs; green [525 nm], blue [470 nm], red [655 nm]) and a dark control as test stimuli, beetles discriminated between test stimuli, being preferentially attracted to green and blue LEDs. In field experiments, Vernon pitfall traps fitted with a green, blue or white LED captured significantly more male and female Agriotes lineatus and A. obscurus than dark control traps. When traps were baited with green or blue LEDs at light intensities that differed by 10-fold, the traps baited with higher light intensity lures captured numerically more beetles but trap catch data in accordance with light intensity did not differ statistically. Light-based trapping may be a viable tool for monitoring elaterid species known not to have pheromones.


Subject(s)
Coleoptera , Male , Female , Animals , Coleoptera/physiology , Pheromones/pharmacology , Larva , Ultraviolet Rays
4.
Eur J Prev Cardiol ; 31(1): 77-99, 2024 Jan 05.
Article in English | MEDLINE | ID: mdl-37607255

ABSTRACT

AIMS: Hypertensive pregnancy is associated with increased risks of developing a range of vascular disorders in later life. Understanding when hypertensive target organ damage first emerges could guide optimal timing of preventive interventions. This review identifies evidence of hypertensive target organ damage across cardiac, vascular, cerebral, and renal systems at different time points from pregnancy to postpartum. METHODS AND RESULTS: Systematic review of Ovid/MEDLINE, EMBASE, and ClinicalTrials.gov up to and including February 2023 including review of reference lists. Identified articles underwent evaluation via a synthesis without meta-analysis using a vote-counting approach based on direction of effect, regardless of statistical significance. Risk of bias was assessed for each outcome domain, and only higher quality studies were used for final analysis. From 7644 articles, 76 studies, including data from 1 742 698 pregnancies, were identified of high quality that reported either blood pressure trajectories or target organ damage during or after a hypertensive pregnancy. Left ventricular hypertrophy, white matter lesions, proteinuria, and retinal microvasculature changes were first evident in women during a hypertensive pregnancy. Cardiac, cerebral, and retinal changes were also reported in studies performed during the early and late post-partum period despite reduction in blood pressure early postpartum. Cognitive dysfunction was first reported late postpartum. CONCLUSION: The majority of target organ damage reported during a hypertensive pregnancy remains evident throughout the early and late post-partum period despite variation in blood pressure. Early peri-partum strategies may be required to prevent or reverse target organ damage in women who have had a hypertensive pregnancy.


This review identifies evidence of damage to the heart, brain, and blood vessels during and after hypertensive disorders of pregnancy and compares the pattern of changes that occur to blood pressure variations. Changes in the heart, brain, and blood vessels are first found in women during a hypertensive pregnancy and are also reported early after pregnancy. The majority of target organ damage reported remains evident long after pregnancy despite variation in blood pressure levels.


Subject(s)
Hypertension, Pregnancy-Induced , Pregnancy Complications, Cardiovascular , Female , Humans , Pregnancy , Postpartum Period , Hypertension, Pregnancy-Induced/epidemiology , Hypertension, Pregnancy-Induced/pathology , Pregnancy Complications, Cardiovascular/epidemiology , Pregnancy Complications, Cardiovascular/pathology , Time Factors
5.
BJOG ; 130(11): 1346-1354, 2023 10.
Article in English | MEDLINE | ID: mdl-37039256

ABSTRACT

OBJECTIVE: To develop core outcome sets (COS) for miscarriage management and prevention. DESIGN: Modified Delphi survey combined with a consensus development meeting. SETTING: International. POPULATION: Stakeholder groups included healthcare providers, international experts, researchers, charities and couples with lived experience of miscarriage from 15 countries: 129 stakeholders for miscarriage management and 437 for miscarriage prevention. METHODS: Modified Delphi method and modified nominal group technique. RESULTS: The final COS for miscarriage management comprises six outcomes: efficacy of treatment, heavy vaginal bleeding, pelvic infection, maternal death, treatment or procedure-related complications, and patient satisfaction. The final COS for miscarriage prevention comprises 12 outcomes: pregnancy loss <24 weeks' gestation, live birth, gestation at birth, pre-term birth, congenital abnormalities, fetal growth restriction, maternal (antenatal) complications, compliance with intervention, patient satisfaction, maternal hospitalisation, neonatal or infant hospitalisation, and neonatal or infant death. Other outcomes identified as important were mental health-related outcomes, future fertility and health economic outcomes. CONCLUSIONS: This study has developed two core outcome sets, through robust methodology, that should be implemented across future randomised trials and systematic reviews in miscarriage management and prevention. This work will help to standardise outcome selection, collection and reporting, and improve the quality and safety of future studies in miscarriage.


Subject(s)
Abortion, Spontaneous , Maternal Death , Infant, Newborn , Pregnancy , Humans , Female , Abortion, Spontaneous/prevention & control , Consensus , Fetal Growth Retardation/therapy , Research Design , Delphi Technique , Outcome Assessment, Health Care , Treatment Outcome
6.
J Addict Med ; 17(1): 13-20, 2023.
Article in English | MEDLINE | ID: mdl-35861341

ABSTRACT

Treatment nonattendance frequently compromises client outcomes in psychosocial addiction treatment services. However, there is limited literature on strategies that increase attendance and retention without a significant resource burden on clinician or organization. This review of 13 studies describes strategies that do not financially reward clients for attendance or require more than 1 day of training/supervision to implement. These strategies are as follows: role induction; pretreatment written or verbal contact; short message service and telephone reminders; and contracting, prompting, and reinforcement. There is some evidence that role induction strategies can increase attendance in early treatment, with stronger evidence for a more intensive approach. Short message service and telephone reminders show a consistent positive impact on early attendance, although the relationship may weaken over time and for individuals with more complex needs (ie, high impulsivity). The strategy: contracting, prompting, and reinforcement shows promising findings, particularly in the first 3 months of treatment. There is considerable variability in study designs, interventions, and sample sizes-future research should more precisely identify relationships between outcomes and the "active ingredients" in each strategy. However, preliminary evidence suggests that some low clinician/organization-burden strategies increase treatment attendance and retention. The mechanisms underpinning these strategies may overlap with therapeutic engagement theories (eg, outcome expectations, common-factors model). Although these interventions have small to moderate effect sizes, their relative simplicity and low cost increase the likelihood of being implemented at a broad scale, amplifying their benefits.


Subject(s)
Behavior, Addictive , Text Messaging , Humans , Behavior, Addictive/therapy , Telephone , Impulsive Behavior
7.
Am J Sports Med ; 50(12): 3406-3416, 2022 10.
Article in English | MEDLINE | ID: mdl-35998010

ABSTRACT

BACKGROUND: The prevalence of unreported concussions is high, and undiagnosed concussions can lead to worse postconcussion outcomes. It is not clear how those with a history of undiagnosed concussion perform on subsequent standard concussion baseline assessments. PURPOSE: To determine if previous concussion diagnosis status was associated with outcomes on the standard baseline concussion assessment battery. STUDY DESIGN: Cross-sectional study; Level of evidence, 3. METHODS: Concussion Assessment, Research, and Education (CARE) Consortium participants (N = 29,934) self-reported concussion history with diagnosis status and completed standard baseline concussion assessments, including assessments for symptoms, mental status, balance, and neurocognition. Multiple linear regression models were used to estimate mean differences and 95% CIs among concussion history groups (no concussion history [n = 23,037; 77.0%], all previous concussions diagnosed [n = 5315; 17.8%], ≥1 previous concussions undiagnosed [n = 1582; 5.3%]) at baseline for all outcomes except symptom severity and Brief Symptom Inventory-18 (BSI-18) score, in which negative binomial models were used to calculate incidence rate ratios (IRRs). All models were adjusted for sex, race, ethnicity, sport contact level, and concussion count. Mean differences with 95% CIs excluding 0.00 and at least a small effect size (≥0.20), and those IRRs with 95% CIs excluding 1.00 and at least a small association (IRR, ≥1.10) were considered significant. RESULTS: The ≥1 previous concussions undiagnosed group reported significantly greater symptom severity scores (IRR, ≥1.38) and BSI-18 (IRR, ≥1.31) scores relative to the no concussion history and all previous concussions diagnosed groups. The ≥1 previous concussions undiagnosed group performed significantly worse on 6 neurocognitive assessments while performing better on only 2 compared with the no concussion history and all previous concussions diagnosed groups. There were no between-group differences on mental status or balance assessments. CONCLUSION: An undiagnosed concussion history was associated with worse clinical indicators at future baseline assessments. Individuals reporting ≥1 previous undiagnosed concussions exhibited worse baseline clinical indicators. This may suggest that concussion-related harm may be exacerbated when injuries are not diagnosed.


Subject(s)
Athletic Injuries , Brain Concussion , Athletes , Athletic Injuries/complications , Athletic Injuries/diagnosis , Athletic Injuries/epidemiology , Brain Concussion/diagnosis , Brain Concussion/epidemiology , Cross-Sectional Studies , Humans , Neuropsychological Tests
8.
EClinicalMedicine ; 48: 101445, 2022 Jun.
Article in English | MEDLINE | ID: mdl-35706495

ABSTRACT

Background: Exercise is advised for young adults with elevated blood pressure, but no trials have investigated efficacy at this age. We aimed to determine whether aerobic exercise, self-monitoring and motivational coaching lowers blood pressure in this group. Methods: The study was a single-centre, open, two-arm, parallel superiority randomized clinical trial with open community-based recruitment of physically-inactive 18-35 year old adults with awake 24 h blood pressure 115/75mmHg-159/99 mmHg and BMI<35 kg/m2. The study took place in the Cardiovascular Clinical Research Facility, John Radcliffe Hospital, Oxford, UK. Participants were randomized (1:1) with minimisation factors sex, age (<24, 24-29, 30-35 years) and gestational age at birth (<32, 32-37, >37 weeks) to the intervention group, who received 16-weeks aerobic exercise training (three aerobic training sessions per week of 60 min per session at 60-80% peak heart rate, physical activity self-monitoring with encouragement to do 10,000 steps per day and motivational coaching to maintain physical activity upon completion of the intervention. The control group were sign-posted to educational materials on hypertension and recommended lifestyle behaviours. Investigators performing statistical analyses were blinded to group allocation. The primary outcome was 24 h awake ambulatory blood pressure (systolic and diastolic) change from baseline to 16-weeks on an intention-to-treat basis. Clinicaltrials.gov registered on March 30, 2016 (NCT02723552). Findings: Enrolment occurred between 30/06/2016-26/10/2018. Amongst the 203 randomized young adults (n = 102 in the intervention group; n = 101 in the control group), 178 (88%; n = 76 intervention group, n = 84 control group) completed 16-week follow-up and 160 (79%; n = 68 intervention group, n = 69 control group) completed 52-weeks follow-up. There were no group differences in awake systolic (0·0 mmHg [95%CI, -2·9 to 2·8]; P = 0·98) or awake diastolic ambulatory blood pressure (0·6 mmHg [95%CI, -1·4. to 2·6]; P = 0·58). Aerobic training increased peak oxygen uptake (2·8 ml/kg/min [95%CI, 1·6 to 4·0]) and peak wattage (14·2watts [95%CI, 7·6 to 20·9]) at 16-weeks. There were no intervention effects at 52-weeks follow-up. Intepretation: These results do not support the exclusive use of moderate to high intensity aerobic exercise training for blood pressure control in young adults. Funding: Wellcome Trust, British Heart Foundation, National Institute for Health Research, Oxford Biomedical Research Centre.

9.
BMC Genomics ; 23(1): 398, 2022 May 25.
Article in English | MEDLINE | ID: mdl-35610562

ABSTRACT

Genome architecture describes how genes and other features are arranged in genomes. These arrangements reflect the evolutionary pressures on genomes and underlie biological processes such as chromosomal segregation and the regulation of gene expression. We present a new tool called Genome Decomposition Analysis (GDA) that characterises genome architectures and acts as an accessible approach for discovering hidden features of a genome assembly. With the imminent deluge of high-quality genome assemblies from projects such as the Darwin Tree of Life and the Earth BioGenome Project, GDA has been designed to facilitate their exploration and the discovery of novel genome biology. We highlight the effectiveness of our approach in characterising the genome architectures of single-celled eukaryotic parasites from the phylum Apicomplexa and show that it scales well to large genomes.


Subject(s)
Apicomplexa , Parasites , Animals , Apicomplexa/genetics , Biological Evolution , Eukaryota/genetics , Genome , Parasites/genetics
10.
Article in English | MEDLINE | ID: mdl-36734652

ABSTRACT

INTRODUCTION: Vitamin D deficiency may be a potentially modifiable risk factor in patients with orthopaedic conditions including Charcot arthropathy. The purpose of this study was to determine the prevalence of vitamin D deficiency and insufficiency in patients with Charcot arthropathy. METHODS: All patients with Charcot arthropathy seen in our foot and ankle surgery clinic from January 2017 through June 2021 were screened for serum 25-hydroxyvitamin D levels. Patients were categorized as sufficient, insufficient, or deficient based on previously accepted guidelines. The prevalence of vitamin D deficiency and insufficiency was calculated. RESULTS: A total of 57 subjects were included in this study after meeting the inclusion criteria. Of these, 27 (47.4%) were found to be deficient in vitamin D, 21 (36.8%) were insufficient in vitamin D, and 9 (15.8%) were sufficient in vitamin D. Overall, 84.2% of the cohort was found to be either insufficient or deficient in vitamin D. CONCLUSION: Vitamin D insufficiency and deficiency is highly prevalent in patients with Charcot arthropathy. As such, it is possible that this may play a role in the pathogenesis of Charcot arthropathy and may represent a potentially modifiable risk factor that could be optimized during the management of patients with Charcot arthropathy.


Subject(s)
Joint Diseases , Vitamin D Deficiency , Humans , Prevalence , Retrospective Studies , Vitamin D Deficiency/epidemiology , Vitamin D
11.
Article in English | MEDLINE | ID: mdl-34529633

ABSTRACT

INTRODUCTION: High-percentage outpatient total joint arthroplasty (TJA) performed in a safety net hospital system has not been described. A rapid recovery protocol (RRP) was instituted at our safety net hospital that allowed eventual transition to outpatient TJA. METHODS: Retrospective review of all primary total knee and hip arthroplasty performed by a single surgeon (RR) using an RRP was performed. The initial cohort of patients was monitored overnight with the goal of next-day discharge (n = 57), and as the RRP evolved, the subsequent cohort of patients had the possibility of same-day discharge (PSDD, n = 61). Outcome measures included the rate of same-day discharge in the PSDD cohort and short-term adverse event rates. RESULTS: In the PSDD cohort, 86.9% (n = 53) of patients were successfully discharged on the day of surgery, and hospital length of stay was decreased by 17.7 hours (13.5 versus 31.2 hours, P < 0.0001). Comparing the next-day discharge and PSDD groups, no significant differences were found in 30-day emergency department visits (5.3% versus 3.3%, P = 0.67), 90-day complications (15.8% versus 13.1%, P = 0.79), 90-day readmissions (0% versus 3.3%, P = 0.50), or 90-day revision surgeries (0% versus 3.3%, P = 0.50). CONCLUSIONS: This study demonstrates that the transition to outpatient TJA can be successfully performed in a safety net hospital system without increasing short-term adverse events.


Subject(s)
Arthroplasty, Replacement, Hip , Arthroplasty, Replacement, Knee , Arthroplasty, Replacement, Hip/adverse effects , Arthroplasty, Replacement, Knee/adverse effects , Humans , Outpatients , Patient Readmission , Postoperative Complications/epidemiology , Retrospective Studies , Safety-net Providers
13.
Turk J Emerg Med ; 21(2): 75-78, 2021.
Article in English | MEDLINE | ID: mdl-33969243

ABSTRACT

Administration of sub-dissociative doses of ketamine is used via intranasal (IN) and intravenous routes in the pediatric emergency department for managing acute pain. Due to difficulties in both obtaining intravenous access and compliance with IN medications in children, administration of ketamine via breath-actuated nebulizer can serve as a valuable modality for timely analgesia in children where dosing titration is patient controlled. We describe five pediatric patients who received ketamine via breath-actuated nebulizer at 0.75 mg/kg, 1 mg/kg, and 1.5 mg/kg, with all patients experiencing a decrease in pain score. This case series introduces ketamine inhalation as a modality for managing pain in children.

14.
BMJ Case Rep ; 14(4)2021 Apr 26.
Article in English | MEDLINE | ID: mdl-33906889

ABSTRACT

Here, we present an interesting case of seroma following hip resurfacing arthroplasty in a 69-year-old man. During the postoperative recovery, the patient made rapid progress and returned to intense activity within the 6-week period. He subsequently developed further right hip pain and swelling. On further examination and on ultrasound scan, a lateral thigh collection was noted. All inflammatory markers were within normal parameters; clinically, there was no evidence of active infection. On initial aspiration and washout, there was a large sterile haemoserous collection. The patient subsequently underwent further aspiration due to persistent collection. After this a revision procedure was performed in two stages with excision of the seroma cavity superficial to fascia lata. Methicillin-sensitive Staphylococcus aureus was grown on extended cultures which was treated successfully with antibiotics. After the second stage revision to total hip replacement, this cavity then recollected. A further trial of aspiration with injection of 200 mg doxycycline, a known sclerosing agent, was performed. The seroma resolved.


Subject(s)
Arthroplasty, Replacement, Hip , Hip Prosthesis , Staphylococcal Infections , Aged , Arthroplasty, Replacement, Hip/adverse effects , Doxycycline , Humans , Male , Prosthesis Failure , Reoperation , Staphylococcal Infections/drug therapy , Staphylococcal Infections/surgery
15.
Int J Mol Sci ; 22(2)2021 Jan 07.
Article in English | MEDLINE | ID: mdl-33430180

ABSTRACT

Cell competition (CC) is a feature that allows tumor cells to outcompete and eliminate adjacent cells that are deemed less fit. Studies of CC, first described in Drosophila melanogaster, reveal a diversity of underlying mechanisms. In this review, we will discuss three recent studies that expand our understanding of the molecular features governing CC. In particular, we will focus on a molecular fitness fingerprint, oncogenic pathways, and the importance of cell junction stability. A fitness fingerprint, mediated by flower (hFWE) protein isoforms, dictates that cells expressing the flower-win isoforms will outcompete adjacent flower-loss-expressing cells. The impact of the flower protein isoforms is seen in cancer progression and may have diagnostic potential. The yes-associated protein (YAP) and TAZ transcription factors, central mediators of the oncogenic Hippo pathway, elevate peritumoral fitness thereby protecting against tumor progression and provide a suppressive barrier. Similarly, COL17A1 is a key component in hemidesmosome stability, and its expression in epidermal stem cells contributes to fitness competition and aging characteristics. The contributions of these pathways to disease development and progression will help define how CC is hijacked to favor cancer growth. Understanding these features will also help frame the diagnostic and therapeutic possibilities that may place CC in the crosshairs of cancer therapeutics.


Subject(s)
Autoantigens/genetics , Calcium Channels/genetics , Cell Competition/genetics , Drosophila Proteins/genetics , Genetic Fitness/genetics , Non-Fibrillar Collagens/genetics , Animals , Drosophila melanogaster/genetics , Genetic Variation/genetics , Humans , Neoplasms/genetics , Nuclear Proteins/genetics , Protein Isoforms/genetics , Trans-Activators/genetics , YAP-Signaling Proteins , Collagen Type XVII
16.
Bioengineered ; 12(1): 341-357, 2021 12.
Article in English | MEDLINE | ID: mdl-33380247

ABSTRACT

Work undertaken using the embryonic carcinoma 2102Ep line, highlighted the requirement for robust, well-characterized and standardized protocols. A systematic approach utilizing 'quick hit' experiments demonstrated variability introduced into culture systems resulting from slight changes to culture conditions (route A). This formed the basis for longitudinal experiments investigating long-term effects of culture parameters including seeding density and feeding regime (route B).Results demonstrated that specific growth rates (SGR) of passage 59 (P59) cells seeded at 20,000 cells/cm2 and subjected to medium exchange after 48h prior to reseeding at 72h (route B2) on average was marginally higher than, P55 cells cultured under equivalent conditions (route A1); whereby SGR values were (0.021±0.004) and (0.019±0.004). Viability was higher in route B2 over 10 passages with average viability reported as (86.3%±8.1) compared to route A1 (83.3±8.8). The metabolite data demonstrated both culture route B1 (P57 cells seeded at 66,667 cells/cm2) and B2 had consistent-specific metabolite rates (SMR) for glucose, but SMR values of route B1 was consistently lower than route B2 (0.00001 mmol, cell-1.d-1 and 0.000025).Results revealed interactions between phenotype, SMR and feeding regime that may not be accurately reflected by growth rate or observed morphology. This implies that current schemes of protocol control do not adequately account for variability, since key cell characteristics, including phenotype and SMR, change regardless of standardized seeding densities. This highlights the need to control culture parameters through defined protocols, for processes that involve culture for therapeutic use, biologics production, and reference lines.


Subject(s)
Biomedical Research/standards , Cell Proliferation/physiology , Cytological Techniques/standards , Biomarkers/analysis , Biomarkers/metabolism , Cell Line/cytology , Cell Line/metabolism , Cell- and Tissue-Based Therapy , Humans , Quality Control , Reference Standards
17.
J ECT ; 36(4): 247-252, 2020 Dec.
Article in English | MEDLINE | ID: mdl-33215888

ABSTRACT

BACKGROUND AND AIM: Esophageal variceal bleeding is a dangerous complication of end-stage liver disease. There is limited information evaluating the hypothesis that medical procedures, specifically electroconvulsive therapy (ECT), may lead to variceal bleeding. The current study aims to determine the risk of variceal bleeding among subjects with cirrhosis who undergo ECT compared with other short medical procedures. METHODS: The Nationwide Inpatient Sample (2002-2013) and Nationwide Readmissions Database (2010-2014) were queried using International Classification of Disease, Ninth Revision, codes to evaluate all patients 18 years or older with cirrhosis who underwent ECT, bronchoscopy, or cystoscopy, or who experienced in-hospital seizures. Rates of variceal bleeding and hospital outcomes were compared. Multivariable analysis for readmission rate was performed. RESULTS: From the Nationwide Inpatient Sample, a total of 5,442,306 patients with cirrhosis were studied, including 840 (0.02%) patients who underwent ECT. Patients who underwent ECT were more likely to have compensated cirrhosis (P < 0.001). Among patients without ECT, 6.8% had variceal bleeding during admission compared with 0% who underwent ECT. From the Nationwide Readmissions Database, 1,383,853 patients were included, including 357 patients (0.03%) who underwent ECT during index admission. Electroconvulsive therapy did not increase the risk of 30- or 90-day readmission for variceal bleeding or mortality compared with other short medical procedures. CONCLUSIONS: Electroconvulsive therapy does not increase the risk of variceal bleeding in subjects with compensated and decompensated cirrhosis. Preoperative optimization of these patients should take the risk of bleeding into account based on current guidelines for variceal surveillance.


Subject(s)
Electroconvulsive Therapy/adverse effects , Esophageal and Gastric Varices/complications , Gastrointestinal Hemorrhage/etiology , Liver Cirrhosis/complications , Adult , Aged , Esophageal and Gastric Varices/epidemiology , Female , Gastrointestinal Hemorrhage/epidemiology , Humans , Liver Cirrhosis/epidemiology , Male , Middle Aged , United States/epidemiology
19.
BMJ Case Rep ; 13(2)2020 Feb 28.
Article in English | MEDLINE | ID: mdl-32111706

ABSTRACT

A 30-year-old man with a history of severe right iliac fossa pain was referred to the surgical emergency unit. His symptoms began 3 days prior as mild, non-specific abdominal pain which progressively localised to the right iliac fossa and worsened in severity. Investigations were suggestive of acute appendicitis, and therefore a laparoscopic appendicectomy was planned. Laparoscopy revealed a thickened, necrotic appendix with a mass at the base of the appendix, in keeping with the appearance of an appendiceal malignancy. Subsequently a right hemicolectomy was performed. Histology revealed active chronic inflammation and granulomas highly suggestive of appendiceal Crohn's disease. Since, the patient has made a good recovery and presently shows no further signs of Crohn's disease. This case is demonstrative of one of many rare findings on histological examination of the appendix. It emphasises the need for a wide differential when investigating right iliac fossa pain.


Subject(s)
Appendicitis/etiology , Appendicitis/surgery , Crohn Disease/complications , Abdominal Pain , Adult , Appendectomy , Diagnosis, Differential , Humans , Male
20.
Fetal Diagn Ther ; 47(5): 373-386, 2020.
Article in English | MEDLINE | ID: mdl-31533099

ABSTRACT

Formation of the human heart involves complex biological signals, interactions, specification of myocardial progenitor cells, and heart tube looping. To facilitate survival in the hypoxemic intrauterine environment, the fetus possesses structural, physiological, and functional cardiovascular adaptations that are fundamentally different from the neonate. At birth, upon separation from the placental circulation, the neonatal cardiovascular system takes over responsibility of vital processes for survival. The transition from the fetal to neonatal circulation is considered to be a period of intricate physiological, anatomical, and biochemical changes in the cardiovascular system. With a successful cardiopulmonary transition to the extrauterine environment, the fetal shunts are functionally modified or eliminated, enabling independent life. Investigations using medical imaging tools such as ultrasound and magnetic resonance imaging have helped to define normal and abnormal patterns of cardiac remodeling both in utero and ex utero. This has not only allowed for a better understanding of how congenital cardiac malformations alter the hemodynamic transition to the extrauterine environment but also how other more common complications during pregnancy including intrauterine growth restriction, preeclampsia, and preterm delivery adversely affect offspring cardiac remodeling during this early transitional period. This review article describes key cardiac progenitors involved in embryonic heart development; the cellular, physiological, and anatomical changes during the transition from fetal to neonatal circulation; as well as the unique impact that different pregnancy complications have on cardiac remodeling.


Subject(s)
Fetal Development/physiology , Fetal Heart/embryology , Heart/growth & development , Hemodynamics/physiology , Female , Fetal Heart/diagnostic imaging , Heart/diagnostic imaging , Humans , Infant, Newborn , Pregnancy
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