Health risk and germ cell toxicity of five commercially available sachet waters in Nigeria: a public health concern.

Background: Sachet water is the most common form of portable water commercially available in Nigeria.

Methodology: Using the murine sperm count and sperm abnormality assay, the germ cell toxicity of five common commercially available sachet waters in Nigeria was assessed in this study. The levels of hormones such as Follicle Stimulating Hormone (FSH), Luteinizing Hormone (LH) and Total Testosterone (TT); and activities of catalase (CAT), alanine aminotransferase (ALT), superoxide dismutase (SOD), aspartate aminotransferase (AST), and alkaline phosphatase (ALP) were evaluated.

ULTRASOUND IMAGING AND PATHOLOGIC FEATURES OF IDIOPATHIC SCROTAL CALCINOSIS IN A YOUNG ADULT NIGERIAN AND REVIEW OF THE LITERATURE.

Background: Idiopathic scrotal calcinosis is a rare and benign disease of the scrotal skin that presents as solitary or multiple painless calcified nodules or papules in the absence of systemic disorders of calcium or phosphorus metabolism. Although some theories have been proposed as to the cause of this rare disease, the exact cause remains unknown. In a resource-poor medical setting like Nigeria, a confident diagnosis of this condition can be made with ultrasonography.

Lessons From the Pandemic for Hand Surgery in Wales.

Aims In March 2020 the World Health Organisation (WHO) declared the COVID-19 virus a global pandemic. The United Kingdom's National Health Service (NHS) was placed under unprecedented pressure and hospitals were forced to adapt their working practices to continue offering world-leading healthcare. This project aims to highlight the lessons learnt within hand surgical departments throughout Wales.

Ancient origin of the rod bipolar cell pathway in the vertebrate retina.

Vertebrates rely on rod photoreceptors for vision in low-light conditions. The specialized downstream circuit for rod signalling, called the primary rod pathway, is well characterized in mammals, but circuitry for rod signalling in non-mammals is largely unknown. Here we demonstrate that the mammalian primary rod pathway is conserved in zebrafish, which diverged from extant mammals ~400 million years ago.

Ancient origin of the rod bipolar cell pathway in the vertebrate retina.

Vertebrates rely on rod photoreceptors for vision in low-light conditions. Mammals have a specialized downstream circuit for rod signaling called the primary rod pathway, which comprises specific cell types and wiring patterns that are thought to be unique to this lineage. Thus, it has been long assumed that the primary rod pathway evolved in mammals.

Ancient origin of the rod bipolar cell pathway in the vertebrate retina.

Vertebrates rely on rod photoreceptors for vision in low-light conditions. Mammals have a specialized downstream circuit for rod signaling called the primary rod pathway, which comprises specific cell types and wiring patterns that are thought to be unique to this lineage. Thus, it has been long assumed that the primary rod pathway evolved in mammals.

A Rare Case of Rotator Cuff Interposition Causing Humeral Head Subluxation Following Anterior Shoulder Dislocation.

This case report aims to highlight that not all shoulder dislocations are simple to treat and that early recognition of complications is key in managing these injuries successfully. We report the case of a 68-year-old gentleman who presented to Accident and Emergency (A&E) following a fall and sustaining an anterior dislocation of his right shoulder. This was reduced under sedation; however, the patient had an ongoing feeling that his shoulder "was not right.

Severe Asymptomatic Hyponatremia in an Elderly Man.

Hyponatremia is regarded as the most common electrolyte imbalance among hospitalised patients. Most hyponatremic conditions present with various degrees of symptoms depending on the level of sodium. Herein, we present a case of hyponatremia in a 65-year male, which was being managed as a case of diabetic nephropathy.

Changes in Triple-Negative Breast Cancer Molecular Subtypes in Patients Without Pathologic Complete Response After Neoadjuvant Systemic Chemotherapy.

Purpose: Lehmann et al have identified four molecular subtypes of triple-negative breast cancer (TNBC)-basal-like (BL) 1, BL2, mesenchymal (M), and luminal androgen receptor-and an immunomodulatory (IM) gene expression signature modifier. Our group previously showed that the response of TNBC to neoadjuvant systemic chemotherapy (NST) differs by molecular subtype, but whether NST affects the subtype was unknown. Here, we tested the hypothesis that in patients without pathologic complete response, TNBC subtypes can change after NST.

Age-related loss of auditory sensitivity in the zebrafish (Danio rerio).

Age-related hearing loss (ARHL), also known as presbycusis, is a widespread and debilitating condition impacting many older adults. Conventionally, researchers utilize mammalian model systems or human cadaveric tissue to study ARHL pathology. Recently, the zebrafish has become an effective and tractable model system for a wide variety of genetic and environmental auditory insults, but little is known about the incidence or extent of ARHL in zebrafish and other non-mammalian models.

Insulin resistance and depressed cardiac G6PD activity induced by glucocorticoid exposure during pregnancy are attenuated by maternal estrogen-progestin therapy.

This study aimed to investigate the effects of maternal combined oral contraceptive (COC) on dams that were exposed to late gestational glucocorticoids (GC). Twenty-four pregnant female rats were randomly allotted into 4 groups of 6 dams each. Dams received COC (combination of 1.

Identification of triple-negative breast cancer cell lines classified under the same molecular subtype using different molecular characterization techniques: Implications for translational research.

The original algorithm that classified triple-negative breast cancer (TNBC) into six subtypes has recently been revised. The revised algorithm (TNBCtype-IM) classifies TNBC into five subtypes and a modifier based on immunological (IM) signatures. The molecular signature may differ between cancer cells in vitro and their respective tumor xenografts.

The occhiolino (occ) mutant Zebrafish, a model for development of the optical function in the biological lens.

Background: Zebrafish visual function depends on quality optics. An F3 screen for developmental mutations in the Zebrafish nervous system was conducted in wild-type (wt) AB Zebrafish exposed to 3 mM of N-ethyl-N-nitrosourea (ENU).

Results: Mutant offspring, identified in an F3 screen, were characterized by a small pupil, resulting from retinal hypertrophy or hyperplasia and a small lens.

A Comparison of Magnetic Resonance Imaging Muscle Fat Content in the Lumbar Paraspinal Muscles with Patient-Reported Outcome Measures in Patients with Lumbar Degenerative Disk Disease and Focal Disk Prolapse.

Study Design Retrospective study. Objectives To assess the fatty atrophy of the lumbar paraspinal muscles (LPMs) as determined using magnetic resonance imaging in patients with lumbar degenerative disk disease (DDD) and focal disk herniation and to determine if fatty atrophy is associated with patient-reported outcome measures (PROMS). Methods One hundred sixty-five patients with lumbar DDD were identified from a PROMS database of >1,500 patients.

Crystal Structure of Human Profilaggrin S100 Domain and Identification of Target Proteins Annexin II, Stratifin, and HSP27.

The fused-type S100 protein profilaggrin and its proteolytic products including filaggrin are important in the formation of a normal epidermal barrier; however, the specific function of the S100 calcium-binding domain in profilaggrin biology is poorly understood. To explore its molecular function, we determined a 2.2 Å-resolution crystal structure of the N-terminal fused-type S100 domain of human profilaggrin with bound calcium ions.

Interaction of the profilaggrin N-terminal domain with loricrin in human cultured keratinocytes and epidermis.

The relationship between the two coexpressed differentiation markers, profilaggrin and loricrin, is not clear right now. In this study, we explored the interaction of profilaggrin N-terminal domain (PND) with loricrin in keratinocytes and epidermis. Confocal immunofluorescence microscopic analysis of human epidermis showed that PND colocalized with loricrin.

In vivo development of outer retinal synapses in the absence of glial contact.

Astroglia secrete factors that promote synapse formation and maintenance. In culture, glial contact has also been shown to facilitate synaptogenesis. Here, we examined whether glial contact is important for establishing circuits in vivo by simultaneously monitoring differentiation of glial cells and local synaptogenesis over time.