important marker
Recently Published Documents


TOTAL DOCUMENTS

258
(FIVE YEARS 93)

H-INDEX

23
(FIVE YEARS 3)

2022 ◽  
Vol 49 (4) ◽  
pp. 15-23
Author(s):  
A. P. Zabiyako ◽  
Junzheng Wang

This article presents the results of a comparative study of personal ornaments from Xiaogushan Cave in the interregional and regional context of the formation of modern behavior. Xiaogushan is a Paleolithic and Neolithic site in Northeast China. In the Upper Paleolithic layers of the site, apart from tools, personal ornaments were found— pendants made from animal teeth, and a decorated bone disc. The date of the site is a matter of debate; ornaments from layers 2 and 3 date to ~30 ka BP. Like other bone artifacts (harpoon, needles, point), and together with types of stone tools and lithic technology, they mirror the local process of Middle to Upper Paleolithic transition. We focus on similarities between the Xiaogushan ornaments and Upper Paleolithic pendants from northern China and Eurasia in general, attesting to modern behavior during the transitional period and being an important marker of the spread of Upper Paleolithic innovations from the centers to the periphery. Xiaogushan is the fi rst Upper Paleolithic industry in Northeast China known to date, and demonstrates skills and symbolic behavior typical of the initial Upper Paleolithic. The Xiaogushan pendants follow the general tendencies, while being specifi c markers of the evolution of symbolic behavior in Eastern Eurasia.


2021 ◽  
pp. 1-4
Author(s):  
Hakan Kaya ◽  
Hakan Kaya ◽  
Fatma Tokat ◽  
Saran Duren ◽  
Burak Ertas

Carcinoma showing thymus-like differentiation (CASTLE) is a rare neoplasm of the thyroid or the adjacent tissues in the neck. It was first described by Miyauchi et al. in 1985 as an intrathyroidal epithelial thymoma. In 1991 Chan and Rosai classified these tumors into four types including CASTLE. World Health Organization (WHO) declared it as an independent clinicopathologic entity in 2004. The tumor arises from ectopic thymus tissue or remnants of branchial pouch. Both sexes are affected similarly with a slight female dominance. It is usually encountered in the fourth and fifth decades of life. It does not have specific symptoms or radiologic findings which makes preoperative diagnosis difficult. It has a higher tendency to be located in the lower poles of thyroid lobes. Immunohistochemistry helps differentiate it from other malignant neoplasms, CD5 being an important marker. The tumor is negative for thyroid specific markers as thyroglobulin, TTF-1 or calcitonin. Surgery is considered the mainstream therapy. Radiotherapy may be reserved for gross disease or recurrence. The role of chemotherapy is unclear. The prognosis of CASTLE is favourable.


Author(s):  
Sujal Patel ◽  
Dhruv Talwar ◽  
Sunil Kumar ◽  
Sourya Acharya ◽  
Mansi Patel

Ferritin overload is a frequent problem encountered in patients with beta thalassemia amounting to various complications. One of rare but important complication of ferritin overload is ferritin overload induced toxic encephalopathy. Serum ferritin has been recognised as a important marker of inflammation and cytokine storm in COVID19.We present a case of Long COVID syndrome presenting as toxic encephalopathy in a case of beta thalassemia in spite of the patient being compliant to desferroxamine therapy.This report highlights the synergistic effect of Severe Acute Respiratory Syndrome Coronavirus. 2(SARS CoV 2) mediated neuroinflammation through direct viral invasion and the release of inflammatory cytokines including ferritin  resulting in toxic encephalopathy in a beta thalassemia major patient who was already prone to develop hyperferritenemia.Ferritin functions as a pro-inflammatory cytokine and it’s level increases in both thalassemia and COVID-19 and the index case presented here had both the conditions predisoposing him to develop toxic encephalopathy even after being compliant to deferoxamine therapy. It is important to recognise and treat this condition in order to prevent mortality and morbidity in patients of beta thalassemia who contract COVID19.


Heritage ◽  
2021 ◽  
Vol 4 (4) ◽  
pp. 4596-4608
Author(s):  
Monica Ganio ◽  
Douglas MacLennan ◽  
Marie Svoboda ◽  
Claire Lyons ◽  
Karen Trentelman

The Getty’s Etruscan painted terracotta wall panel, Athletic Official, recently has been speculated to be associated with a Caeretan wall panel depicting a Discobolus based on a shared iconography. To better understand the materials and techniques used to create the Getty panel and investigate its relation to extant Etruscan painted terracotta panels, a multi-analytical study was conducted, using broadband visible, IR, and UV imaging, along with scanning MA-XRF, FORS, Raman, SEM-EDS, and XRD analytical techniques. The analytical results together with PCA analysis suggest the clay support of the Getty panel is most similar in composition to that of panels from Cerveteri. A manganese black was identified in the decorative scheme; not commonly employed, this appears to be an important marker for the workshop practice in Cerveteri. Most significantly, the use of MA-XRF scanning allowed for invisible ruling lines on the Athletic Official, presumably laid down at the earliest stages of the creation of the panel, to be visualized. Taken together, the results of this study provide new insights into Caeretan workshop practice as well as provide a framework for better understanding the design and execution of Etruscan polychromy.


2021 ◽  
Vol 35 (1) ◽  
pp. 97-106

Abstract The work which forms the bulk of the present study was carried out on the basis of numerous pieces of field material collected by means of an ethnolinguistic questionnaire in villages inhabited by Burgenland Croats in Western Hungary and Southern Slovakia (where part of the Hungarian territory was annexed after World War II). The field data contain a number of latent and obvious borrowings from Hungarian folk culture. By latent borrowings we mean cultural phenomena that were initially feebly expressed in a particular tradition (and tended to be lost), but during long coexistence with a neighboring heterogeneous tradition they were eventually maintained due to the developed state of the similar phenomena in the neighboring population. We also include here cultural phenomena that are typical of both traditions and have deep roots in the universal model of the naive world view. Analyzing the popular culture and dialects of enclave villages of Burgenland Croats in Hungary and Slovakia, we show that traditional folk culture with the corresponding vocabulary nevertheless acts as an important marker of identity for the population living in a foreign language environment.


2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 163-163
Author(s):  
Adam Salmon

Abstract The progressive decline of resilience during the aging process across multiple functional systems suggests basic biological mechanisms of regulation. We exploited a primary cell model to identify markers of cellular resilience or the ability of cells in culture to respond and return to homeostasis following acute challenge including metabolic, oxidative, or proteostatic stress. Using primary fibroblasts from minimally-invasive skin biopsies of genetically heterogeneous mice, we are able to determine individual cellular resilience as well as the normal lifespan and healthspan of each donor. Our studies suggest donor age and sex affect cellular resilience and that this measure of resilience can predict functional outcomes in some interventional studies. While longevity studies continue, these studies point to a potential highly important marker of healthspan and longevity as well as a model to delineate the biology of resilience in animal and translational models.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Caroline Diorio ◽  
Rawan Shraim ◽  
Laura A. Vella ◽  
Josephine R. Giles ◽  
Amy E. Baxter ◽  
...  

AbstractMulti-system Inflammatory Syndrome in Children (MIS-C) is a major complication of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection in pediatric patients. Weeks after an often mild or asymptomatic initial infection with SARS-CoV-2 children may present with a severe shock-like picture and marked inflammation. Children with MIS-C present with varying degrees of cardiovascular and hyperinflammatory symptoms. Here we perform a comprehensive analysis of the plasma proteome of more than 1400 proteins in children with SARS-CoV-2. We hypothesize that the proteome would reflect heterogeneity in hyperinflammation and vascular injury, and further identify pathogenic mediators of disease. We show that protein signatures demonstrate overlap between MIS-C, and the inflammatory syndromes macrophage activation syndrome (MAS) and thrombotic microangiopathy (TMA). We demonstrate that PLA2G2A is an important marker of MIS-C that associates with TMA. We find that IFNγ responses are dysregulated in MIS-C patients, and that IFNγ levels delineate clinical heterogeneity.


Author(s):  
Toshi Jain ◽  
Megha Agrawal ◽  
Anju Sharma

Background: Preterm birth is an important challenge in obstetrics and contemporary perinatology in India. Timely recognition, intervention and appropriate management is integral in curbing the upsurge in its incidence and consequent poor perinatal outcome. This study was conducted taking into account the potential mechanism of preterm labor: premature activation of the placental-adrenal endocrine axis wherein elevation of maternal cortisol leads to an increased production of placental corticotrophin releasing hormone which causes an increase in dehydroepiandrosterone produced by the fetal zone of the adrenal gland and its enlargement. This activates a cascade leading to early loss of uterine quiescence, consequently causing cervical modelling, ripening and preterm birth. Aim and Objectives: To assess fetal adrenal gland volume, fetal zone enlargement and cervical length on ultrasound and compare their  efficacy in the prediction of preterm birth.  Methods: This was a hospital based prospective study in which pregnant women with an uncomplicated live singleton pregnancy between 28 to 34 weeks of gestation were subjected to obstetric ultrasonography wherein fetal adrenal gland volume, fetal zone enlargement and cervical length was measured. They were then followed up until their delivery, whether term or preterm and its correlation with fetal adrenal gland parameters and cervical length was assessed.   Result: Corrected fetal adrenal gland volume showed the highest sensitivity of 90.0% and a specificity of 96.7% with a cut off value of 632.50 mm3/kg while fetal zone enlargement showed a sensitivity and specificity of 72.7% and 60.9% respectively. Cervical length was found to be the least important marker for predicting the preterm birth as having the least AUC as 0.209, sensitivity as 36.4 % and specificity as 76.1%. Conclusion: This study concludes that fetal adrenal gland biometry can be used as a noninvasive, cost effective and potential new marker for the prediction of preterm birth and is a better predictor than cervical length. Keywords: Preterm, Cervical length, Adrenal biometry.


2021 ◽  
Vol 12 (10) ◽  
Author(s):  
YouZhi Wang ◽  
Ning Wu ◽  
Ning Jiang

AbstractProstate cancer is a common malignant tumor, which can spread to multiple organs in the body. Metastatic disease is the dominant reason of death for patients with prostate cancer. Prostate cancer usually transfers to bone. Bone metastases are related to pathologic fracture, pain, and reduced survival. There are many known targets for prostate cancer treatment, including androgen receptor (AR) axis, but drug resistance and metastasis eventually develop in advanced disease, suggesting the necessity to better understand the resistance mechanisms and consider multi-target medical treatment. Because of the limitations of approved treatments, further research into other potential targets is necessary. Metastasis is an important marker of cancer development, involving numerous factors, such as AKT, EMT, ECM, tumor angiogenesis, the development of inflammatory tumor microenvironment, and defect in programmed cell death. In tumor metastasis, programmed cell death (autophagy, apoptosis, and necroptosis) plays a key role. Malignant cancer cells have to overcome the different forms of cell death to transfer. The article sums up the recent studies on the mechanism of bone metastasis involving key regulatory factors such as macrophages and AKT and further discusses as to how regulating autophagy is crucial in relieving prostate cancer bone metastasis.


Sign in / Sign up

Export Citation Format

Share Document