Hydroxychloroquine-induced Sweet's Syndrome: A Case Report and Literature Review.

Sweet's syndrome (or acute febrile dermatosis) is a neutrophilic dermatosis with a characteristic presentation encompassing specific clinical (fever and erythemato-violaceous oedematous papules, plaques and nodules), laboratory (neutrophilia and increased inflammatory markers), and histological (dermal neutrophilic infiltrate without vasculitis) features. Its pathophysiology is poorly understood but there seems to be an auto-inflammatory component related to mutations in inflammasome genes. It has been subdivided into its classic form, malignancy-associated, and drug-induced, according to its aetiology.

Neph1 is required for neurite branching and is negatively regulated by the PRRXL1 homeodomain factor in the developing spinal cord dorsal horn.

The cell-adhesion molecule NEPH1 is required for maintaining the structural integrity and function of the glomerulus in the kidneys. In the nervous system of Drosophila and C. elegans, it is involved in synaptogenesis and axon branching, which are essential for establishing functional circuits.

Development of the Low-Pressure Die Casting Process for an Aluminium Alloy Part.

The low-pressure die casting (LPDC) process was experimentally and numerically studied to produce AlSi7Mg0.3 components such as steering knuckles. Steering knuckles are important safety components in the context of a vehicle's suspension system, serving as the mechanical interface that facilitates the articulation of the steering to control the front wheel's orientation, while simultaneously bearing the vertical load imposed by the vehicle's weight.

Assessment of the knowledge, attitudes and perceived quality of education about antimicrobial use and resistance of medical students in Zambia, Southern Africa.

Introduction: Antimicrobial resistance (AMR) is a major global health threat, particularity in lower-middle-income countries (LMICs) where antibiotics are readily available, leading to antibiotic misuse. Educational interventions are lacking in Zambia. Our study assessed antimicrobial use and resistance knowledge, attitude and perceived quality of education relating to AMR in Zambian medical schools.

Tlx3 Exerts Direct Control in Specifying Excitatory Over Inhibitory Neurons in the Dorsal Spinal Cord.

The spinal cord dorsal horn is a major station for integration and relay of somatosensory information and comprises both excitatory and inhibitory neuronal populations. The homeobox gene Tlx3 acts as a selector gene to control the development of late-born excitatory (dILB) neurons by specifying glutamatergic transmitter fate in dorsal spinal cord. However, since Tlx3 direct transcriptional targets remain largely unknown, it remains to be uncovered how Tlx3 functions to promote excitatory cell fate.

A selective p53 activator and anticancer agent to improve colorectal cancer therapy.

Impairment of the p53 pathway is a critical event in cancer. Therefore, reestablishing p53 activity has become one of the most appealing anticancer therapeutic strategies. Here, we disclose the p53-activating anticancer drug (3S)-6,7-bis(hydroxymethyl)-5-methyl-3-phenyl-1H,3H-pyrrolo[1,2-c]thiazole (MANIO).

Appendectomy: prognostic factors in the brazilian unified health system.

Introduction: Acute appendicitis (AA) is the most common cause of surgical acute abdomen. Postoperative complications in emergency care are reflections of the surgical procedure and pre- and postoperative factors.

Objective: Define prognostic factors for patients who underwent appendectomy, comparing them with the literature.

The "sick dancers": The construction of medical knowledge about the "epidemic of dance" in Itapagipe, Salvador, Bahia (1882-1901).

The goal of this paper is to analyze a little-known set of documents referring to a "Dancing Epidemic" that took place in Itapagipe, a suburb of Salvador, capital of the province of Bahia, Brazil, in 1882. Through the studies of a group of physicians, especially Raimundo Nina Rodrigues (1862-1906), a psychiatrist and anthropologist from the Bahia School of Medicine, the medical knowledge built on this unique phenomenon in Brazilian history is examined. The case in particular involved a crowd that spread through the streets of Itapagipe, attracting the interest of the medical classes, who were intrigued by the symptoms of motor incoordination the patients manifested.

Multiple papulonodular lesions on central area of the face: what is your diagnosis?

A healthy 31-year-old woman presented with a 20-year history of asymptomatic skin-colored papules and nodules on the central area of the face. Her maternal grandmother, aunts, mother, and sister also had similar lesions. Clinical, histopathological, and genetic features allowed the diagnosis of multiple familial trichoepithelioma.

A role for prolyl isomerase PIN1 in the phosphorylation-dependent modulation of PRRXL1 function.

encodes for a paired-like homeodomain transcription factor essential for the correct establishment of the dorsal root ganglion - spinal cord nociceptive circuitry during development. -null mice display gross anatomical disruption of this circuitry, which translates to a markedly diminished sensitivity to noxious stimuli. Here, by the use of an immunoprecipitation and mass spectrometry approach, we identify five highly conserved phosphorylation sites (T110, S119, S231, S233 and S251) in PRRXL1 primary structure.

Zinc finger transcription factor Casz1 expression is regulated by homeodomain transcription factor Prrxl1 in embryonic spinal dorsal horn late-born excitatory interneurons.

The transcription factor Casz1 is required for proper assembly of vertebrate vasculature and heart morphogenesis as well as for temporal control of Drosophila neuroblasts and mouse retina progenitors in the generation of different cell types. Although Casz1 function in the mammalian nervous system remains largely unexplored, Casz1 is expressed in several regions of this system. Here we provide a detailed spatiotemporal characterization of Casz1 expression along mouse dorsal root ganglion (DRG) and dorsal spinal cord development by immunochemistry.

Dual role of Tlx3 as modulator of Prrxl1 transcription and phosphorylation.

The proper establishment of the dorsal root ganglion/spinal cord nociceptive circuitry depends on a group of homeodomain transcription factors that includes Prrxl1, Brn3a and Tlx3. By the use of epistatic analysis, it was suggested that Tlx3 and Brn3a, which highly co-localize with Prrxl1 in these tissues, are required to maintain Prrxl1 expression. Here, we report two Tlx3-dependent transcriptional mechanisms acting on Prrxl1 alternative promoters, referred to as P3 and P1/P2 promoters.

Paired related homeobox protein-like 1 (Prrxl1) controls its own expression by a transcriptional autorepression mechanism.

The homeodomain factor paired related homeobox protein-like 1 (Prrxl1) is crucial for proper assembly of dorsal root ganglia (DRG)-dorsal spinal cord (SC) pain-sensing circuit. By performing chromatin immunoprecipitation with either embryonic DRG or dorsal SC, we identified two evolutionarily conserved regions (i.e.

Ser¹¹⁹ phosphorylation modulates the activity and conformation of PRRXL1, a homeodomain transcription factor.

PRRXL1 [paired related homeobox-like 1; also known as DRG11 (dorsal root ganglia 11)] is a paired-like homeodomain transcription factor expressed in DRG and dSC (dorsal spinal cord) nociceptive neurons. PRRXL1 is crucial for the establishment and maintenance of nociceptive circuitry, as Prrxl1(-/-) mice present neuronal loss, reduced pain sensitivity and failure to thrive. In the present study, we show that PRRXL1 is highly phosphorylated in vivo, and that its multiple band pattern on electrophoretic analysis is the result of different phosphorylation states.

Several cis-regulatory elements control mRNA stability, translation efficiency, and expression pattern of Prrxl1 (paired related homeobox protein-like 1).

The homeodomain transcription factor Prrxl1/DRG11 has emerged as a crucial molecule in the establishment of the pain circuitry, in particular spinal cord targeting of dorsal root ganglia (DRG) axons and differentiation of nociceptive glutamatergic spinal cord neurons. Despite Prrxl1 importance in the establishment of the DRG-spinal nociceptive circuit, the molecular mechanisms that regulate its expression along development remain largely unknown. Here, we show that Prrxl1 transcription is regulated by three alternative promoters (named P1, P2, and P3), which control the expression of three distinct Prrxl1 5'-UTR variants, named 5'-UTR-A, 5'-UTR-B, and 5'-UTR-C.

Family reliance on physicians' decisions in life-sustaining treatments in acute-on-chronic respiratory diseases in a respiratory ICU: a single-center study.

Background: In ICUs, many patients are unable to participate in decision-making regarding life-sustaining treatments. This study evaluated the opinions of family members about family and physician participation in life-sustaining treatment decisions and examined factors that influence those decisions.

Methods: This was a prospective exploratory observational study that used convenience sampling.

[Amniotic fluid embolism].

Amniotic fluid embolism (AFE) is a rare pathological syndrome, sometimes fatal that arises as an obstetric complication during vaginal delivery, caesarean, immediate postpartum or during pregnancy. It remains as an important cause of fetal and maternal morbidity and mortality. The authors present a clinical report of a young woman who developed an acute respiratory failure during labour demanding invasive mechanical ventilation and an urgent caesarean.

Isolated ventricular noncompaction: a case report.

Isolated ventricular noncompaction is an extremely rare cardiomyopathy, not fully clarified.It is characterized by persistent embryonic myocardium morphology without associated cardiac abnormalities.Since first description in 1984, few clinical studies were done.

[Principle of autonomy: right of self-disposal till the end? A case report].

The doctor-patient relationship should be established in ethical principles. The codes of conduct that guide the relation between the doctor and the patient are addressed to the physician (principle of beneficence and non-maleficence) or oriented to the patient (principle of autonomy). As such, in certain circumstances there can be some tension between the principles.

[Intensive medicine in the End-of-life Care. Considerations on the disposition of the Catholic church].

End-of-life care cyclically occupies the headlines of the mass media. The disposition of the Catholic church, this matter, although unknown to many, has been the subject of discussion and controversy. In this article we analysed various documents of that religious institution, as well as the opinion of some well known personalities who studied this theme from a Catholic perspective.

[Mechanical ventilation and medical futility or dysthanasia, the dialectic of high technology in intensive medicine].

Dysthanasia or any of its synonyms is a consequence of excessive technical science, without any reasonable chance of achieving a therapeutic benefit for the patient. Medical futility is a distressing ethical dilemma of intensive care medicine. Its recognition has led to a precept support in various institutions and organizations.

In vitro inhibition of transthyretin aggregate-induced cytotoxicity by full and peptide derived forms of the soluble receptor for advanced glycation end products (RAGE).

Familial amyloidotic polyneuropathy is a neurodegenerative disorder characterized by systemic extracellular deposition of transthyretin (TTR) amyloid fibrils. The latter have been proposed to trigger neurodegeneration through engagement of the receptor for advanced glycation end products (RAGE). Here we show that TTR interaction with RAGE is conserved across mouse and human species and is not dependent on RAGE glycosylation.

[Age as a criterion for restraining treatment. The evidence and the bias].

At the present moment, one of the debates concerning bioethics is focussed on age as criterion for rationing health care. The increase in average life expectancy and aging population on one side, and the scarcity of the economic resources on the other, are the main reasons for the controversy. The two sides of the dispute contest on the economic and ethical arguments.