Placental Macrophages Demonstrate Sex-Specific Response to Intrauterine Inflammation and May Serve as a Marker of Perinatal Neuroinflammation

2021 ◽  
pp. 103360
Author(s):  
Quan Na ◽  
Anna Chudnovets ◽  
Jin Liu ◽  
Izzie Lee ◽  
Jie Dong ◽  
...  
Romanticism ◽  
2016 ◽  
Vol 22 (2) ◽  
pp. 157-166
Author(s):  
Nikki Hessell

John Keats's medical studies at Guy's Hospital coincided with a boom in interest in both the traditional medicines of the sub-continent and the experiences of British doctors and patients in India. Despite extensive scholarship on the impact of Keats's medical knowledge on his poetry, little consideration has been given to Keats's exposure to Indian medicine. The poetry that followed his time at Guy's contains numerous references to the contemporary state of knowledge about India and its medical practices, both past and present. This essay focuses on Isabella and considers the major sources of information about Indian medicine in the Regency. It proposes that some of Keats's medical imagery might be read as a specific response to the debates about medicine in the sub-continent.


Author(s):  
Zoran Vrucinic

The future of medicine belongs to immunology and alergology. I tried to not be too wide in description, but on the other hand to mention the most important concepts of alergology to make access to these diseases more understandable, logical and more useful for our patients, that without complex pathophysiology and mechanism of immune reaction,we gain some basic insight into immunological principles. The name allergy to medicine was introduced by Pirquet in 1906, and is of Greek origin (allos-other + ergon-act; different reaction), essentially representing the reaction of an organism to a substance that has already been in contact with it, and manifested as a specific response thatmanifests as either a heightened reaction, a hypersensitivity, or as a reduced reaction immunity. Synonyms for hypersensitivity are: altered reactivity, reaction, hypersensitivity. The word sensitization comes from the Latin (sensibilitas, atis, f.), which means sensibility,sensitivity, and has retained that meaning in medical vocabulary, while in immunology and allergology this term implies the creation of hypersensitivity to an antigen. Antigen comes from the Greek words, anti-anti + genos-genus, the opposite, anti-substance substance that causes the body to produce antibodies.


Author(s):  
Ajay Bhushan Prasad

21<sup>st</sup> Century is an era of stress and burnout. For the past few decades it has been a burning and hot topic of discussion for researchers, to evolve stress and burnout- from a global problem to global solutions, as it affects the life of individuals in an unprecedented manner and touches them at workplace across the globe. Everybody knows what stress is all about. It has become a part of life and perhaps, to some extent, necessary at work and outside work. Some people are more productive and creative when they work under stress. But if stress is intense and continuous, then it becomes a negative phenomenon leading to physical illness and psychological disorders. Stress and burnout in today's environment has become a well documented problem. Various researches have evaluated stress and burnout in workplaces. Stress is a non-specific response of body to any demand made on it. Many researchers have identified that stress and burnout has become an integral part of our daily life due to the negative aspects of job, such as, multiple responsibilities, disciplinary problems, employee's apathy, involuntary transfers, inadequate pay and perks, less chances of career advancement and lack of administrative support etc. As a result of these, individuals are likely to suffer from stress and may experience a sense of tiredness and frustration. When prolonged stress continues and it is not effectively managed, it can even lead to symptoms of burnout, a state of emotional exhaustion, depersonalization and diminished personal accomplishment in the workplace. Stress management can be done through six zones which we have discussed in detail, with a holistic approach. It includes health zone, intimate zone, family zone, work zone, social zone and spiritual zone. In this paper, an effort is made to discuss the solutions of stress and burnout in different and innovative ways through different zones which have been experienced by the author in his 20 years of professional career. Thus, stress and burnout are not a trivial problem but a major dysfunction of the 21<sup>st</sup> century, which has far reaching impact on quality and quantity of productivity. The present paper explores the concept of stress and burnout, the major differences between them, factors leading to genesis of the problem, various symptoms and how it is a serious quality concern for all professionals. Appropriate interventions for prevention and management of stress and burnout are also suggested.


Cancers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 2396
Author(s):  
Nina Schoenwaelder ◽  
Inken Salewski ◽  
Nadja Engel ◽  
Mareike Krause ◽  
Björn Schneider ◽  
...  

Cyclin-dependent kinase inhibitors (CDKi´s) display cytotoxic activity against different malignancies, including head and neck squamous cell carcinomas (HNSCC). By coordinating the DNA damage response, these substances may be combined with cytostatics to enhance cytotoxicity. Here, we investigated the influence of different CDKi´s (palbociclib, dinaciclib, THZ1) on two HNSCC cell lines in monotherapy and combination therapy with clinically-approved drugs (5-FU, Cisplatin, cetuximab). Apoptosis/necrosis, cell cycle, invasiveness, senescence, radiation-induced γ-H2AX DNA double-strand breaks, and effects on the actin filament were studied. Furthermore, the potential to increase tumor immunogenicity was assessed by analyzing Calreticulin translocation and immune relevant surface markers. Finally, an in vivo mouse model was used to analyze the effect of dinaciclib and Cisplatin combination therapy. Dinaciclib, palbociclib, and THZ1 displayed anti-neoplastic activity after low-dose treatment, while the two latter substances slightly enhanced radiosensitivity. Dinaciclib decelerated wound healing, decreased invasiveness, and induced MHC-I, accompanied by high amounts of surface-bound Calreticulin. Numbers of early and late apoptotic cells increased initially (24 h), while necrosis dominated afterward. Antitumoral effects of the selective CDKi palbociclib were weaker, but combinations with 5-FU potentiated effects of the monotherapy. Additionally, CDKi and CDKi/chemotherapy combinations induced MHC I, indicative of enhanced immunogenicity. The in vivo studies revealed a cell line-specific response with best tumor growth control in the combination approach. Global acting CDKi’s should be further investigated as targeting agents for HNSCC, either individually or in combination with selected drugs. The ability of dinaciclib to increase the immunogenicity of tumor cells renders this substance a particularly interesting candidate for immune-based oncological treatment regimens.


2021 ◽  
pp. 002224292110021
Author(s):  
Alireza Golmohammadi ◽  
Taha Havakhor ◽  
Dinesh K. Gauri ◽  
Johann Joseph Comprix

Firms are increasingly turning to social media platforms for complaint handling. Past research and practitioners’ reports highlight the benefits of complaint handling on social media, urging firms to provide prompt and detailed responses to complaints. However, little research has explored the possible drawbacks of such practices, especially when responses inadvertently further publicize complaints. Utilizing two unique data sets in a series of observational and quasi-experimental analyses, this research provides the first evidence of complaint publicization in social media, a phenomenon in which firm responses to complaints on popular social media platforms increase the potential public exposure of complaints. This negative effect can outweigh any positive customer care-signaling impact from firm responses. The authors show that a response strategy that engenders a high level of complaint publicization – e.g., providing detailed responses through multiple communication exchanges with a complainant – could negatively impact perceived quality and firm value, diminish the positive impact of a firm’s own posts, and increase the volume of future complaints. Additional analyses reveal that these adverse impacts are stronger for firms that are targeted by retail investors. The authors also uncover specific response strategies and styles that could mitigate these effects.


2021 ◽  
pp. 1-22
Author(s):  
Marcelo L. Moretti

Abstract Italian ryegrass has become a problematic weed in hazelnut orchards of Oregon because of the presence of herbicide-resistant populations. Resistant and multiple-resistant Italian ryegrass populations are now the predominant biotypes in Oregon; there is no information on which herbicides effectively control Italian ryegrass in hazelnut orchards. Six field studies were conducted in commercial orchards to evaluate Italian ryegrass control with POST herbicides. Treatments included flazasulfuron, glufosinate, glyphosate, paraquat, rimsulfuron, and sethoxydim applied alone or in selected mixtures during early spring when plants were in the vegetative stage. Treatment efficacy was dependent on the experimental site. The observed range of weed control 28 d after treatment was 13 to 76 % for glyphosate, 1 to 72% for paraquat, 58 to 88% for glufosinate, 16 to 97 % for flazasulfuron, 8 to 94% for rimsulfuron, and 25 to 91% for sethoxydim. Herbicides in mixtures improved control of Italian ryegrass compared to single active ingredients based on contrast analysis. Herbicides in mixture increased control by 27% compared to glyphosate, 18% to rimsulfuron, 15% to flazasulfuron, 19% to sethoxydim, and 12% compared to glufosinate when averaged across all sites, but mixture not always improved ground coverage of biomass reduction. This complex site-specific response highlights the importance of record-keeping for efficient herbicide use. Glufosinate is an effective option to manage Italian ryegrass. However, the glufosinate-resistant biotypes documented in Oregon may jeopardize this practice. Non-chemical weed control options are needed for sustainable weed management in hazelnuts.


Genetics ◽  
1998 ◽  
Vol 149 (3) ◽  
pp. 1465-1475 ◽  
Author(s):  
T Kozlova ◽  
G V Pokholkova ◽  
G Tzertzinis ◽  
J D Sutherland ◽  
I F Zhimulev ◽  
...  

Abstract DHR38 is a member of the steroid receptor superfamily in Drosophila homologous to the vertebrate NGFI-B-type orphan receptors. In addition to binding to specific response elements as a monomer, DHR38 interacts with the USP component of the ecdysone receptor complex in vitro, in yeast and in a cell line, suggesting that DHR38 might modulate ecdysone-triggered signals in the fly. We characterized the molecular structure and expression of the Dhr38 gene and initiated an in vivo analysis of its function(s) in development. The Dhr38 transcription unit spans more than 40 kb in length, includes four introns, and produces at least four mRNA isoforms differentially expressed in development; two of these are greatly enriched in the pupal stage and encode nested polypeptides. We characterized four alleles of Dhr38: a P-element enchancer trap line, l(2)02306, which shows exclusively epidermal staining in the late larval, pre-pupal and pupal stages, and three EMS-induced alleles. Dhr38 alleles cause localized fragility and rupturing of the adult cuticle, demonstrating that Dhr38 plays an important role in late stages of epidermal metamorphosis.


Genetics ◽  
1996 ◽  
Vol 144 (1) ◽  
pp. 317-328 ◽  
Author(s):  
Sheri P Kernodle ◽  
John G Scandalios

Abstract Two highly similar cytosolic Cu/Zn Sod (Sod4 and Sod4A) genes have been isolated from maize. Sod4A contains eight exons and seven introns. The Sod4 partial sequence contains five introns. The introns in both genes are located in the same position and have highly homologous sequences in several regions. The largest intron (&gt;1200 bp) interrupts the 5′ leader sequence. The presence of different regulatory motifs in the promoter region of each gene may indicate distinct responses to various conditions. Zymogram and RNA blot analyses show that Sod4 and Sod4A are expressed in all tissues of the maize plant. The developmental profiles of Sod4 and Sod4A mRNA accumulation differ in scutella during sporophytic development. RNA blot analysis of the respective Sod mRNAs indicates a differential, tissue-specific response of each gene to certain stressors. RNA isolated from stem tissue of ethephon-treated seedlings shows an increase in the Sod4 but not the Sod4A transcript while there is no change in transcripts of either gene in leaves or roots. There is differential mRNA accumulation between the two genes in leaf and stem tissue of paraquat-treated seedlings. Other agents that can cause oxidative stress were also tested for differential expression of the genes.


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