Correlation Between Vestibular Disorders and Superior Semicircular Dehiscence on High-resolution Computed Tomography at Tam Anh Ho Chi Minh General Hospital.

Objective: Superior semicircular canal dehiscence (SSCD) is a pathologic condition within the inner ear characterized by various vestibular manifestations. Numerous studies have reported an incidence rate of SSCD ranging from 3.6% to 9% in the general population.

The Role of SARS-CoV-2 Spike Protein in Long-term Damage of Tissues and Organs, the Underestimated Role of Retrotransposons and Stem Cells, a Working Hypothesis.

Coronavirus disease-2019 (COVID-19) is a respiratory disease in which Spike protein from SARS-CoV-2 plays a key role in transferring virus genomic code into target cells. Spike protein, which is found on the surface of the SARS-CoV-2 virus, latches onto angiotensin-converting enzyme 2 receptors (ACE2r) on target cells. The RNA genome of coronaviruses, with an average length of 29 kb, is the longest among all RNA viruses and comprises six to ten open reading frames (ORFs) responsible for encoding replicase and structural proteins for the virus.

Taxonomical insights and ecology of sandfly (Diptera, Psychodidae) species in six provinces of Northern Vietnam.

We studied sandfly (Diptera: Psychodidae) populations in six provinces of Vietnam. This work explores the diversity of sandfly species according to the province, as well as environment, and updated information on public health since leishmaniasis cases were reported in two provinces. Sandflies were collected using 428 CDC light traps from May 30 to October 13, 2016 and identified based on the morphology of the cibarium, pharynx and/or male genitalia or female spermathecae.

Intragenic Deletion of the ZMYND11 Gene in 10p15.3 is Associated with Developmental Delay Phenotype: A Case Report.

Submicroscopic 10p15.3 microdeletions were previously reported to be associated with developmental delay, and the smallest region of overlap of 10p15.3 deletion including DIP2C and ZMYND11 was defined.

The mediating role of self-compassion between proactive coping and perceived stress among students.

Proactive coping has been documented as a significant predictor of perceived stress. When facing stressful events, the more individuals use proactive coping strategies, the lower their stress level will be. However, there is still little research of possible latent factors participating in this relationship to explain how proactive coping can reduce of perceived stress, directly and indirectly.

Where to Biopsy to Detect and How Many Biopsies Are Needed to Detect Antibiotic Resistance in a Human Stomach.

This study aims to determine the gastric distribution, density, and diversity of infection. Subtotal resection of the stomachs of three -infected and asymptomatic obese patients were collected after a sleeve gastrectomy. Distribution and density of were determined using culture and RT-PCR on multiple gastric sites (88, 176, and 101 biopsies per patient).

Brownian dynamics simulations of one-patch inverse patchy particles.

Inverse patchy particles are promising colloids to develop new architectures in ceramic materials based on their self-assembly. Nonetheless, a good understanding of their aggregation is required. Several previous studies have shown that the behavior of ceramic colloids can be well described by the DLVO interaction potential.

Practical approach to method verification in plasma and validation in cerebrospinal fluid under accreditation using a flexible scope in molecular virology: setting up the HIV, HBV and HCV Aptima™ Quant Dx assays.

Background Our laboratory obtained the ISO 15189 accreditation for the plasmatic HIV-1, HBV and HCV viral load (VL) using the m2000 RealTime™ system, which was recently changed for the platform Panther®. Here, we discuss a strategy for performing method validation/verification very quickly. Methods We performed the mandatory (repeatability, internal quality assessment [IQA], measurement uncertainty [MU]) and optional technical verifications for CE/IVD assays using the flexible scope range A.

Expanding the mutational spectrum of the ABCB4 gene in inherited adult cholestatic liver disorders with four novel pathogenic variants.

Low phospholipid-associated cholelithiasis and intrahepatic cholestasis of pregnancy are two MDR3-related inherited liver disorders caused by biallelic or monoallelic ABCB4 loss-of-function variants. Low phospholipid-associated cholelithiasis is clinically characterized by the early onset of symptomatic cholelithiasis in young adults while intrahepatic cholestasis of pregnancy is a distinct clinical entity associated with adverse fetal outcomes. Of note, patients carrying ABCB4 sequence variations commonly exhibit phenotypic expression over a wide continuum due to environmental and hormonal contributing factors and genetic modifiers.

Fatal Myopericarditis Following an Influenza A (H3N2) Infection.

BACKGROUND Influenza viruses induce uncomplicated infections in most cases in individuals with no known predisposing factors. Acute febrile illness is generally limited to upper respiratory symptoms and several constitutional symptoms, including headache, lethargy, and myalgia. However, influenza A virus is a cause of severe morbidity and mortality worldwide.

Computer simulations of heteroaggregation with large size asymmetric colloids.

Hypothesis: Hetero-aggregation of inorganic colloids is influenced by numerous parameters, which dictate the suspension properties. When particles are different in size, the suspension can be either stable or unstable according to concentration of components, ionic strength, and pH. Experimentally, understanding the role of each parameter is sometimes difficult because parameters cannot easily be modified independently.

Molecular characterization of Helicobacter pylori resistance to rifamycins.

Introduction: Antibiotic resistance is a major contributing factor in treatment failure of Helicobacter pylori eradication. Rifabutin (RB) is a rescue treatment and rifampicin (RP) is used to screen RB resistance in vitro. The aim of this study was to evaluate the rate of rifamycins resistance and to determine the mutations in the rpoB gene conferring resistance to discuss the current break point.

Interdiffusion and crystallization of oppositely charged colloids.

The aggregation of oppositely charged colloids, usually denoted as heteroaggregation, is often used in colloidal processing, for which a precise control of the basic mechanisms of aggregate formation is of crucial importance. A promising way to achieve a better degree of control is to guide heteroaggregation by imposing geometric constraints. Here, we consider this possibility by simulating the heteroaggregation of two oppositely charged suspensions which are initially separated and then put into contact through a planar interface.

WAGR syndrome and congenital hypothyroidism in a child with a Mosaic 11p13 deletion.

Wilm's tumor, aniridia, genitourinary anomalies, and mental retardation (WAGR) syndrome, a rare genetic disorder, is caused by the loss of 11p13 region including PAX6 and WT1. We report novel findings in a 28-month-old boy with aniridia, Wilm's tumor, congenital hypothyroidism, and sublingual thyroid ectopia. He was found to have a mosaic 5.

Inflammatory signaling pathways induced by Helicobacter pylori in primary human gastric epithelial cells.

Inflammatory signaling pathways induced by Helicobacter pylori remain unclear, having been studied mostly on cell-line models derived from gastric adenocarcinoma with potentially altered signaling pathways and nonfunctional receptors. Here, H. pylori-induced signaling pathways were investigated in primary human gastric epithelial cells.

In vitro culture and phenotypic and molecular characterization of gastric stem cells from human stomach.

Background: Human gastric mucosa shows continuous self-renewal via differentiation from stem cells that remain poorly characterized.

Methods: We describe an original protocol for culture of gastric stem/progenitor cells from adult human stomach. The molecular characteristics of cells were studied using TaqMan low-density array and qRT-PCR analyses using the well-characterized H1 and H9 embryonic stem cells as reference.

Herpes zoster: Risk and prevention during immunomodulating therapy.

Herpes zoster can be serious or incapacitating, particularly in patients whose immune system is compromised by a disease or treatment. Immunomodulating drugs can increase the risk of infection. Well-established risk factors include advanced age and glucocorticoid therapy.

Chemokines and antimicrobial peptides have a cag-dependent early response to Helicobacter pylori infection in primary human gastric epithelial cells.

Helicobacter pylori infection systematically causes chronic gastric inflammation that can persist asymptomatically or evolve toward more severe gastroduodenal pathologies, such as ulcer, mucosa-associated lymphoid tissue (MALT) lymphoma, and gastric cancer. The cag pathogenicity island (cag PAI) of H. pylori allows translocation of the virulence protein CagA and fragments of peptidoglycan into host cells, thereby inducing production of chemokines, cytokines, and antimicrobial peptides.

A homozygous balanced reciprocal translocation suggests LINC00237 as a candidate gene for MOMO (macrosomia, obesity, macrocephaly, and ocular abnormalities) syndrome.

Macrosomia, obesity, macrocephaly, and ocular abnormalities syndrome (MOMO syndrome) has been reported in only four patients to date. In these sporadic cases, no chromosomal or molecular abnormality has been identified thus far. Here, we report on the clinical, cytogenetic, and molecular findings in a child of healthy consanguineous parents suffering from MOMO syndrome.

Adipose tissue can be generated in vitro by using adipocytes from human fat tissue mesenchymal stem cells seeded and cultured on fibrin gel sheet.

The current study has developed an innovative procedure to generate ex novo fat tissue by culturing adipocytes from human fat tissue mesenchymal stem cells (hFTMSCs) on fibrin gel sheet towards applications in medicine and cosmetology. Fibrin gel has been obtained by combining two components fibrinogen and thrombin collected by human peripheral blood. By this procedure it was possible to generate blocks of fibrin gel containing adipocytes within the gel that show similar features and consistency to human fat tissue mass.

Culture and differentiation of osteoblasts on coral scaffold from human bone marrow mesenchymal stem cells.

In this paper we describe an approach that aims to provide fundamental information towards a scientific, biomechanical basis for the use of natural coral scaffolds to initiate mesenchymal stem cells into osteogenic differentiation for transplant purposes. Biomaterial, such as corals, is an osteoconductive material that can be used to home human derived stem cells for clinical regenerative purposes. In bone transplantation, the use of biomaterials may be a solution to bypass two main critical obstacles, the shortage of donor sites for autografts and the risk of rejection with allograft procedures.

In vitro culture of Keratinocytes from human umbilical cord blood mesenchymal stem cells: the Saigonese culture.

There have been many attempts to acquire and culture human keratinocytes for clinical purposes including from keratotome slices in media with fetal calf serum (FCS) or pituitary extract (PE), from skin specimens in media with feeder layers, from suction blister epidermal roofs' in serum-free culture and from human umbilical cord blood (hUCB) mesenchymal stem cells (MSCs) in media with skin feeder layers. Conversely this study was designed to investigate whether keratinocytes could be obtained directly from hUCB MSCs in vitro. It is widely established that mesenchymal stem cells from human umbilical cord blood have multipotent capacity and the ability to differentiate into disparate cell lineages hUCB MSCs were directly induced to differentiate into keratinocytes by using a specific medium composed of primary culture medium (PCM) and serum free medium (SFM) in a ratio 1:9 for a period of 7 days and tested by immunostain p63 and K1-K10.