{"title":"Test Your Knowledge.","authors":"Brooke H Dubansky, Glenda F Hood","doi":"10.1080/01478885.2022.2126110","DOIUrl":"https://doi.org/10.1080/01478885.2022.2126110","url":null,"abstract":"","PeriodicalId":15966,"journal":{"name":"Journal of Histotechnology","volume":"45 4","pages":"203"},"PeriodicalIF":1.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33502010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jie Li, Ke Yan, Zhaolin Liu, Xiang Lin, Yu Huang, Jian Shi, Dongdong Li, Xiaolei Yao, Zuguo Liu, Qinghua Peng
{"title":"A study on the safety and therapeutic effect of Xiaoyaosan on depressive disorder related dry eye disease in a murine animal model.","authors":"Jie Li, Ke Yan, Zhaolin Liu, Xiang Lin, Yu Huang, Jian Shi, Dongdong Li, Xiaolei Yao, Zuguo Liu, Qinghua Peng","doi":"10.1080/01478885.2022.2136818","DOIUrl":"https://doi.org/10.1080/01478885.2022.2136818","url":null,"abstract":"<p><p>This study was done to observe the safety and effect of Xiaoyaosan (XYS) on the stimulated depressive disorder (DD) related dry eye disease (DED) in mice. Normal control (NC) group, Vehicle group, and drug treatment groups, including Sertraline Hydrochloride (SH), XYS low-dose (XYS-LD), medium-dose (XYS-MD), and high-dose (XYS-HD), were established. The drug quality of XYS was assessed by high-performance liquid chromatography (HPLC). XYS toxicity in kidney and liver was assessed with Hematoxylin & Eosin (H&E) staining. Serum enzyme-linked immunosorbent assay (ELISA) and body weights were used to evaluate the depression status of mice. Tear production, corneal sensitivity, Oregon Green Dye (OGD) staining, and corneal confocal microscopy were used to assess ocular surface changes. H&E staining was also used to assess pathological cornea and lacrimal gland changes. HPLC results showed that XYS complied with Chinese drug quality standards. The drug treatment groups observed no drug toxicity reactions in the liver and kidney. SH and XYS groups improved DD-related serological indices as compared with Vehicle. Body weight was enhanced in mice with XYS groups compared to Vehicle and SH. Mice with XYS treatments showed increased tear production and corneal sensitivity, decreased corneal OGD staining scores, improved morphology, and decreased inflammatory cell infiltration in the cornea and lacrimal gland. In conclusion, XYS had no drug toxicity, improved serological indices, and ocular surface pathological changes in DD-related DED mice. XYS is safe and may have a therapeutic effect on DD-related DED.</p>","PeriodicalId":15966,"journal":{"name":"Journal of Histotechnology","volume":" ","pages":"161-171"},"PeriodicalIF":1.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40436560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Histopathology-based diagnosis of Mooren's ulcer concealed beneath the pterygium on eye.","authors":"Yujie Zhang, Xie Fang, Zhirong Lin, Zhiwen Xie, Huping Wu, Shangkun Ou","doi":"10.1080/01478885.2022.2137666","DOIUrl":"https://doi.org/10.1080/01478885.2022.2137666","url":null,"abstract":"<p><p>Mooren's ulcer (MU) is a chronic and painful ulcerative keratitis that is difficult to diagnose, especially when concealed beneath the pterygium, which is a common, benign, wedge-shaped, fleshy tissue growth of the conjunctiva extending onto the cornea. The coexistence of MU and pterygium is extremely rare. A 41-year-old man presented with a 2-month history of unprovoked redness, pain, and blurred vision in the right eye. Corneal epithelial defects around the pterygium head were noted upon slit-lamp examination and fluorescein staining. The patient was initially misdiagnosed with a corneal epithelial defect and pterygium. The initial treatments with anti-inflammatory and corneal epithelial growth promotion tear agents failed. Anterior segment optical coherence tomography (AS-OCT) showed corneal stromal lysis thinning, and in vivo confocal microscopy (IVCM) revealed marked inflammatory cell infiltration and stromal degeneration. We suspected the pathology was an immune-related or tumor-related corneal ulcer. The MU concealed beneath the pterygium was diagnosed by histopathological examination of a biopsy specimen that presented typical localized loss of the corneal epithelium and Bowman's layer, stromal degeneration, and inflammatory cell infiltration. Finally, we performed lamellar keratoplasty (LKP) combined with pterygium excision surgery. The patient recovered with no complications or recurrence during the 1-year follow-up period. Few cases of MU concealed beneath the pterygium have been reported. It is beneficial to rule out the pathological changes concealed beneath the pterygium, combined with multiple means of examination such as slit-lamp examination, AS-OCT, and IVCM. A histopathological examination should be performed to establish a diagnosis.</p>","PeriodicalId":15966,"journal":{"name":"Journal of Histotechnology","volume":" ","pages":"195-201"},"PeriodicalIF":1.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40472608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Test your knowledge.","authors":"Dale Telgenhoff","doi":"10.1080/01478885.2022.2131063","DOIUrl":"https://doi.org/10.1080/01478885.2022.2131063","url":null,"abstract":"( 1 ) I m m u n o c y t o c h e m i s t r y / i m m u n o fl u o r e s c e n c e a p p l i e d t o c e l l s i n c u l t u r e . ( 2 ) A c t i n i n t e r m e d i a t e fi l a m e n t s o f t h e c y t o s k e l e t o n ( 3 ) C e l l m i g r a t i o n , m o v e m e n t o f v e s i c l e s i n t h e c e l l , m e c h a n i c a l s u p p o r t , c e l l d i v i s i o n ( 4 ) T h i s c e l l i s v e r y a c t i v e a n d r e q u i r e s a l a r g e a m o u n t o f A T P t o f a c i l i t a t e i t s f u n c t i o n . I n t h i s c a s e , t h e A T P i s b e i n g g e n e r a t e d t o s u p p o r t c e l l m i g r a t i o n .","PeriodicalId":15966,"journal":{"name":"Journal of Histotechnology","volume":" ","pages":"204-205"},"PeriodicalIF":1.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40685387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Luis Chiriboga, Gayle M Callis, Yongfu Wang, Elizabeth Chlipala
{"title":"Guide for collecting and reporting metadata on protocol variables and parameters from slide-based histotechnology assays to enhance reproducibility.","authors":"Luis Chiriboga, Gayle M Callis, Yongfu Wang, Elizabeth Chlipala","doi":"10.1080/01478885.2022.2134022","DOIUrl":"https://doi.org/10.1080/01478885.2022.2134022","url":null,"abstract":"<p><p>The central tenet of scientific research is the rigorous application of the scientific method to experimental design, analysis, interpretation, and reporting of results. In order to confer validity to a hypothesis, experimental details must be transparent and results must be reproducible. Failure to achieve this minimum indicates a deficiency in rationale, design, and/or execution, necessitating further experimental refinement or hypothesis reformulation. More importantly, rigorous application of the scientific method advances scientific knowledge by enabling others to identify weaknesses or gaps that can be exploited by new ideas or technology that inevitably extend, improve, or refine a hypothesis. Experimental details, described in manuscript materials and methods, are the principal vehicle used to communicate procedures, techniques, and resources necessary for experimental reproducibility. Recent examination of the biomedical literature has shown that many published articles lack sufficiently detailed methodological information to reproduce experiments. There are few broadly established practice guidelines and quality assurance standards in basic biomedical research. The current paper provides a framework of best practices to address the lack of reporting of detailed materials and methods that is pervasive in histological slide-based assays. Our goal is to establish a structured framework that highlights the key factors necessary for thorough collection of metadata and reporting of slide-based assays.</p>","PeriodicalId":15966,"journal":{"name":"Journal of Histotechnology","volume":" ","pages":"132-147"},"PeriodicalIF":1.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40674378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The intervention of epithelial-mesenchymal transition in homeostasis of human retinal pigment epithelial cells: a review.","authors":"Brijesh Gelat, Pooja Rathaur, Pooja Malaviya, Binita Patel, Krupali Trivedi, Kaid Johar, Rahul Gelat","doi":"10.1080/01478885.2022.2137665","DOIUrl":"https://doi.org/10.1080/01478885.2022.2137665","url":null,"abstract":"<p><p>The health and activity of photoreceptors and Bruch's membrane are promoted by the retinal pigment epithelium (RPE), which is essential for normal vision. Age-related macular degeneration (AMD), diabetic retinopathy (DR), and proliferative vitreoretinopathy (PVR) are examples of retinopathies that result in vision loss. Epithelial-mesenchymal transition (EMT) is a process in which epithelial cells transform into mesenchymal cells as a result of a faulty microenvironment, and it is associated with the oculopathies stated above. Cell differentiation, autophagy, growth factors (GFs), the blood-retinal barrier (BRB), and other complicated signaling pathways all contribute to proper morphology, and their disruption by harmful compounds has an impact on RPE function. The inducer and suppressor of EMT in RPE, on the other hand, are unknown. The current article reviews the experimental research investigations, suggested that certain modulators like glucosamine (Glc-N) and bradykinin (BK) suppress the TGFβ signaling pathway and that other variables like oxidative stress triggered EMT, which is not found in normal RPE homeostasis. Finding molecular targets and treatments to prevent and restore RPE function, as well as understanding how EMT regulators affect RPE degeneration, are therefore crucial.</p>","PeriodicalId":15966,"journal":{"name":"Journal of Histotechnology","volume":" ","pages":"148-160"},"PeriodicalIF":1.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40685880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ji Pang, Xia Zhao, Fengyan Deng, Dai Tsuchiya, Seth Malloy, Tari Parmely, Ting Xie, Yongfu Wang
{"title":"A freeze-substitution approach with solvent-based glyoxal fixative to prevent distortion of ocular structures.","authors":"Ji Pang, Xia Zhao, Fengyan Deng, Dai Tsuchiya, Seth Malloy, Tari Parmely, Ting Xie, Yongfu Wang","doi":"10.1080/01478885.2022.2111744","DOIUrl":"https://doi.org/10.1080/01478885.2022.2111744","url":null,"abstract":"<p><p>Investigating the function of delicate mammalian eyes often requires chemical fixation, histological sectioning, immunohistochemistry (IHC) and <i>in situ</i> hybridization (ISH). One of the long-standing challenges in the ocular histology field is the limited success of maintaining intact morphology via cryo- or paraffin procedures. Although our latest protocol significantly improved the morphology of mouse eyeball sections, the window technique is time-consuming and requires extensive practice to avoid damage while making windows. In this study, we present a novel glyoxal fixative that is suitable for a freeze-substitution approach to improve both morphology and molecular target preservation of mouse eyes. The method prevents morphology distortion in all tested eyeballs. Therefore, it suits a variety of research needs from morphological examination to investigation of single-molecule RNA expression, using hematoxylin and eosin (H&E) stain, IHC, and ISH assays on either frozen (cryo) or paraffin-infiltrated tissue sections. In addition, this method can be easily performed in many histology laboratories.</p>","PeriodicalId":15966,"journal":{"name":"Journal of Histotechnology","volume":" ","pages":"172-181"},"PeriodicalIF":1.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40362903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Susan Haller, Rebecca M Marton, Kevin A Marroquin, Eliah R Shamir
{"title":"Improved handling and embedding schemes for cultured murine neuroretinal explants.","authors":"Susan Haller, Rebecca M Marton, Kevin A Marroquin, Eliah R Shamir","doi":"10.1080/01478885.2022.2119639","DOIUrl":"10.1080/01478885.2022.2119639","url":null,"abstract":"<p><p>Traumatic, inherited, and age-related degenerative diseases of the retina, such as retinal detachment, retinitis pigmentosa, and age-related macular degeneration, are characterized by the irreversible loss of retinal neurons. While current treatments aim to prevent neuronal degeneration, there are no available treatments to restore neurons after loss. Cultured murine neuroretinal tissue explants model retinal injury and offer a high throughput approach to identify experimental interventions capable of regenerating neurons. Formalin-fixed paraffin-embedded (FFPE) preparations of murine neuroretinal explants can be used to identify cells throughout the retinal layers to provide information on proliferation and activity following exposure to therapeutics. However, retinal explants are friable, particularly after <i>ex vivo</i> culture, sample handling and FFPE processing steps can result in tissue loss and damage. Friability also prohibits bisecting samples post-culture to display more than one region of interest for analysis. We developed a sample handling and embedding technique for cultured murine neuroretinal explants using Histogel<sup>TM</sup> in combination with a post-processing trimming step that eliminates tissue loss, increases cross-sectional retinal representation, and captures proximal and central retina on one slide to facilitate analysis of explants subjected to neurotrophic compounds.</p>","PeriodicalId":15966,"journal":{"name":"Journal of Histotechnology","volume":" ","pages":"1-13"},"PeriodicalIF":1.1,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33500243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Color atlas of human gross pathology","authors":"S. Lau","doi":"10.1080/01478885.2022.2123126","DOIUrl":"https://doi.org/10.1080/01478885.2022.2123126","url":null,"abstract":"","PeriodicalId":15966,"journal":{"name":"Journal of Histotechnology","volume":"45 1","pages":"202 - 202"},"PeriodicalIF":1.1,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48794766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Patrick S Potoczak, Beverly I Strassmann, Claudius Vincenz
{"title":"A new method for the sampling and preservation of placental specimens in low-resource settings for the identification of <i>P. falciparum</i> and analysis of nucleic acids.","authors":"Patrick S Potoczak, Beverly I Strassmann, Claudius Vincenz","doi":"10.1080/01478885.2022.2088191","DOIUrl":"https://doi.org/10.1080/01478885.2022.2088191","url":null,"abstract":"<p><p>Collection, preservation, and shipment of histological specimens in low-resource settings is challenging. We present a novel method that achieved excellent preservation of placental specimens from rural Mali by using formalin fixation, ethanol dehydration, and long-term storage in a solar-powered freezer. Sample preservation success was 92%, permitting evaluation of current and past malaria infection, anemia, placental maturity, and inflammation. Using RNAscope® hybridization we were able to visualize cell-specific gene expression patterns in the formalin-fixed paraffin-embedded (FFPE) specimens. Additionally, our method entailed mirrored sampling from the two cut faces of a cotyledon, one for the FFPE workflows and the other for storage in RNAlater™ and RNA-seq.</p>","PeriodicalId":15966,"journal":{"name":"Journal of Histotechnology","volume":"45 3","pages":"116-119"},"PeriodicalIF":1.1,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9437128/pdf/nihms-1821218.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10505111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}