Biotechnic & Histochemistry最新文献

筛选
英文 中文
Effects of irisin and exercise on adropin and betatrophin in a new metabolic syndrome model. 在一种新的代谢综合征模型中,鸢尾素和运动对adropin和betatropin的影响。
IF 1.6 4区 生物学
Biotechnic & Histochemistry Pub Date : 2024-11-01 Epub Date: 2024-01-09 DOI: 10.1080/10520295.2023.2276205
Suna Aydin, Faruk Kilinc, Kader Ugur, Mustafa Ata Aydin, Mehmet Hanifi Yalcin, Tuncay Kuloglu, Nalan Kaya Tektemur, Serdal Albayrak, Elif Emre, Meltem Yardim, Ramazan Fazil Akkoc, Serhat Hancer, İbrahim Sahin, Vedat Cinar, Taner Akbulut, Selcuk Demircan, Bahri Evren, Berrin Tarakci Gencer, Aziz Aksoy, Merve Yilmaz Bozoglan, İsa Aydemir, Suleyman Aydin
{"title":"Effects of irisin and exercise on adropin and betatrophin in a new metabolic syndrome model.","authors":"Suna Aydin, Faruk Kilinc, Kader Ugur, Mustafa Ata Aydin, Mehmet Hanifi Yalcin, Tuncay Kuloglu, Nalan Kaya Tektemur, Serdal Albayrak, Elif Emre, Meltem Yardim, Ramazan Fazil Akkoc, Serhat Hancer, İbrahim Sahin, Vedat Cinar, Taner Akbulut, Selcuk Demircan, Bahri Evren, Berrin Tarakci Gencer, Aziz Aksoy, Merve Yilmaz Bozoglan, İsa Aydemir, Suleyman Aydin","doi":"10.1080/10520295.2023.2276205","DOIUrl":"10.1080/10520295.2023.2276205","url":null,"abstract":"<p><p>Metabolic syndrome (MetS) is a prevalent public health problem. Uric acid (UA) is increased by MetS. We investigated whether administration of UA and 10% fructose (F) would accelerate MetS formation and we also determined the effects of irisin and exercise. We used seven groups of rats. Group 1 (control); group 2 (sham); group 3 (10% F); group 4 (1% UA); group 5 (2% UA); group 6 (10% F + 1% UA); and Group 7, (10% F + 2% UA). After induction of MetS (groups 3 -7), Group 3 was divided into three subgroups: 3A, no further treatment; 3B, irisin treatment; 3C, irisin treatment + exercise. Group 4, 1% UA, which was divided into three subgroups: 4A, no further treatment; 4B, irisin treatment; 4C, Irisin treatment + exercise. Group 5, 2% UA, which was divided into three subgroups: 5A, no further treatment; 5B, irisin treatment; 5C, irisin treatment + exercise. Group 6, 10% F + 1% UA, which was divided into three subgroups: 6A, no further treatment; 6B, irisin treatment; 6C, irisin treatment + exercise. Group 7, 10% F + 2% UA, which was divided into three subgroups: 7A, no further treatment; 7B, irisin treatment; 7C, irisin treatment + exercise., İrisin was administered 10 ng/kg irisin intraperitoneally on Monday, Wednesday, Friday, Sunday each week for 1 month. The exercise animals (in addition to irisin treatment) also were run on a treadmill for 45 min on Monday, Wednesday, Friday, Sunday each week for 1 month. The rats were sacrificed and samples of liver, heart, kidney, pancreas, skeletal muscles and blood were obtained. The amounts of adropin (ADR) and betatrophin in the tissue supernatant and blood were measured using an ELISA method. Immunohistochemistry was used to detect ADR and betatrophin expression in situ in tissue samples. The duration of these experiments varied from 3 and 10 weeks. The order of development of MetS was: group 7, 3 weeks; group 6, 4 weeks; group 5, 6 weeks; group 4, 7 weeks; group 3, 10 weeks. Kidney, liver, heart, pancreas and skeletal muscle tissues are sources of adropin and betatrophin. In these tissues and in the circulation, adropin was decreased significantly, while betatrophin was increased significantly due to MetS; irisin + exercise reversed this situation. We found that the best method for creating a MetS model was F + UA2 supplementation. Our method is rapid and simple. Irisin + exercise was best for preventing MetS.</p>","PeriodicalId":8970,"journal":{"name":"Biotechnic & Histochemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71477688","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}
引用次数: 0
Histochemical and morphological evaluation of a glyoxal acid-free fixative. 无乙二醛酸固定液的组织化学和形态学评估
IF 1.6 4区 生物学
Biotechnic & Histochemistry Pub Date : 2024-11-01 Epub Date: 2024-01-09 DOI: 10.1080/10520295.2023.2300797
Chelsea Peeler, Christopher R Pitzer, Hector G Paez, Sheila Criswell
{"title":"Histochemical and morphological evaluation of a glyoxal acid-free fixative.","authors":"Chelsea Peeler, Christopher R Pitzer, Hector G Paez, Sheila Criswell","doi":"10.1080/10520295.2023.2300797","DOIUrl":"10.1080/10520295.2023.2300797","url":null,"abstract":"<p><p>The application of most chemical fixatives, such as formalin, in the anatomic pathology laboratory requires safety training and hazardous chemical monitoring due to the toxicity and health risks associated with their use. Consequently, the use of formalin has been banned in most applications in Europe; the primary exception is its use in the histology laboratory in lieu of a suitable and safer alternative. Glyoxal based solutions, several of which are available commercially, are the most promising alternative fixatives, because they are based on a mechanism of fixation similar to that of formalin. Unlike formalin, however, glyoxal based solutions do not dissociate from water and therefore do not require ventilation measures such as a fume hood. A primary barrier to the adoption of commercially available glyoxal based solutions is their low pH, which can produce undesirable morphological and antigenic tissue alterations; however, a recently available neutral pH glyoxal product (glyoxal acid free) (GAF) has been developed to mitigate the challenges of low pH. We compared the morphology and histochemistry among tissues fixed in 10% neutral buffered formalin, a commercially available acidic glyoxal product (Prefer), and GAF. Tissues fixed in formalin and Prefer exhibited similar morphology and staining properties; tissues fixed with 2% GAF exhibited deleterious effects.</p>","PeriodicalId":8970,"journal":{"name":"Biotechnic & Histochemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139073339","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}
引用次数: 0
The number and distribution of proliferating cells in the rat's rostral migratory stream as identified by means of two different proliferation markers. 用两种不同的增殖标记物鉴定大鼠喙迁徙流中增殖细胞的数量和分布。
IF 1.6 4区 生物学
Biotechnic & Histochemistry Pub Date : 2024-11-01 DOI: 10.1080/10520295.2024.2424252
Kamila Fabianová, Adam Raček, Alexandra Popovičová, Marcela Martončíková, Enikő Račeková
{"title":"The number and distribution of proliferating cells in the rat's rostral migratory stream as identified by means of two different proliferation markers.","authors":"Kamila Fabianová, Adam Raček, Alexandra Popovičová, Marcela Martončíková, Enikő Račeková","doi":"10.1080/10520295.2024.2424252","DOIUrl":"https://doi.org/10.1080/10520295.2024.2424252","url":null,"abstract":"<p><p>In the brains of adult rodents, the cells arising in the subventricular zone of the lateral ventricles maintain the ability to divide when migrating to the olfactory bulb along the rostral migratory stream (RMS). Dividing cells in the RMS are most frequently revealed through immunohistochemical detection of an exogenous marker of proliferation, 5-Bromo-2-deoxyuridine (BrdU), which incorporates into DNA during the S-phase of mitosis. The more recently recognized antigen Ki-67 (also known as Kiel-67 and MKI67), an endogenous protein expressed in nuclei at all stages of mitosis, is also used for proliferation detection. BrdU and Ki-67 are often used as alternative methods, but they have not previously been compared in the RMS. We analyzed the numbers and distribution of cells labeled either with BrdU or Ki-67 within the RMS of adult rats. The first group of animals received a single i.p. dose of BrdU. In the second group, dividing cells were visualized by Ki-67 immunohistochemistry. Some sections from brains of BrdU-treated rats were also immunostained for Ki-67. Labeled cells were counted in the three anatomical parts of the RMS (vertical arm, elbow and horizontal arm) using a method for unbiased estimation of cell density. The distribution of proliferating cells was similar for both markers. Most BrdU and Ki-67 positive cells were located in the vertical arm and in the elbow, but a caudo-rostral reduction in cell divisions was more evident with Ki-67 labeling. The number of Ki-67 positive cells significantly exceeded the number of BrdU positive cells in all parts of the RMS. Our results indicate that BrdU and Ki-67 are not interchangeable markers for evaluation of proliferative activity in the RMS.</p>","PeriodicalId":8970,"journal":{"name":"Biotechnic & Histochemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142557094","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}
引用次数: 0
Romanowsky staining: history, recent advances and future prospects from a chemistry perspective. 罗曼诺夫斯基染色:从化学角度看历史、最新进展和未来前景。
IF 1.6 4区 生物学
Biotechnic & Histochemistry Pub Date : 2024-11-01 Epub Date: 2024-01-09 DOI: 10.1080/10520295.2023.2273860
Valeriy Kalinin, Pavel Padnya, Ivan Stoikov
{"title":"Romanowsky staining: history, recent advances and future prospects from a chemistry perspective.","authors":"Valeriy Kalinin, Pavel Padnya, Ivan Stoikov","doi":"10.1080/10520295.2023.2273860","DOIUrl":"10.1080/10520295.2023.2273860","url":null,"abstract":"<p><p>Romanowsky staining was an important methodological breakthrough in diagnostic hematology and cytopathology during the late 19<sup>th</sup> and early 20<sup>th</sup> centuries; it has facilitated for decades the work of biologists, hematologists and pathologists working with blood cells. Despite more than a century of studying Romanowsky staining, no systematic review has been published that explains the chemical processes that produce the \"Romanowsky effect\" or \"Romanowsky-Giemsa effect\" (RGE), i.e., a purple coloration arising from the interaction of an azure dye with eosin and not due merely to their simultaneous presence. Our review is an attempt to build a bridge between chemists and biomedical scientists and to summarize the available data on methylene blue (MB) demethylation as well as the related reduction and decomposition of MB to simpler compounds by both light and enzyme systems and microorganisms. To do this, we analyze modern data on the mechanisms of MB demethylation both in the presence of acids and bases and by disproportionation due to the action of light. We also offer an explanation for why the RGE occurs only when azure B, or to a lesser extent, azure A is present by applying experimental and calculated physicochemical parameters including dye-DNA binding constants and electron density distributions in the molecules of these ligands. Finally, we discuss modern techniques for obtaining new varieties of Romanowsky dyes by modifying previously known ones. We hope that our critical literature study will help scientists understand better the chemical and physicochemical processes and mechanisms of cell staining with such dyes.</p>","PeriodicalId":8970,"journal":{"name":"Biotechnic & Histochemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71477689","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}
引用次数: 0
Stains recently certified. 污渍最近通过了认证。
IF 1.6 4区 生物学
Biotechnic & Histochemistry Pub Date : 2024-11-01 Epub Date: 2024-01-09 DOI: 10.1080/10520295.2024.2286747
{"title":"Stains recently certified.","authors":"","doi":"10.1080/10520295.2024.2286747","DOIUrl":"https://doi.org/10.1080/10520295.2024.2286747","url":null,"abstract":"","PeriodicalId":8970,"journal":{"name":"Biotechnic & Histochemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139401689","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}
引用次数: 0
Protective effects of chlorogenic acid against cyclophosphamide induced liver injury in mice. 绿原酸对环磷酰胺所致小鼠肝损伤的保护作用。
IF 1.6 4区 生物学
Biotechnic & Histochemistry Pub Date : 2024-11-01 Epub Date: 2024-01-09 DOI: 10.1080/10520295.2023.2287452
Hao Hao, Youmei Xu, Rui Chen, Shanshan Qi, Xiang Liu, Beibei Lin, Xiaohua Chen, Xiaoying Zhang, Lijuan Yue, Chen Chen
{"title":"Protective effects of chlorogenic acid against cyclophosphamide induced liver injury in mice.","authors":"Hao Hao, Youmei Xu, Rui Chen, Shanshan Qi, Xiang Liu, Beibei Lin, Xiaohua Chen, Xiaoying Zhang, Lijuan Yue, Chen Chen","doi":"10.1080/10520295.2023.2287452","DOIUrl":"10.1080/10520295.2023.2287452","url":null,"abstract":"<p><p>We investigated possible protective effects of chlorogenic acid (CGA) against cyclophosphamide (CP) induced hepatic injury in mice. We measured aminotransferase alanine transaminase (ALT) and aspartate transaminase (AST) levels in the serum. We assayed catalase (CAT), superoxide dismutase (SOD), reduced glutathione (GSH), glutathione peroxidase (GSH-Px) and malondialdehyde (MDA) in hepatic tissue. We assessed expression of nuclear transcription factor 2 (Nrf2) and Kelch sample related protein-1 (keap1) proteins in hepatic tissues using immunohistochemistry. The relative mRNA expression levels of heme oxygenase-1 (HO-1), NADH quinone oxidoreductase 1 (NQO1), tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) were determined using quantitative real-time polymerase chain reaction (qRT-PCR). Hematoxylin & eosin staining was used to assess liver histopathology. We found that administration of CGA prior to induction of injury by CP decreased serum ALT, AST and MDA expressions in hepatic tissue, while CAT, SOD, GSH and GSH-Px concentrations were increased. We found that hepatocytes of animals administered CGA gradually returned to normal morphology. CGA increased the protein expression of Nrf2 in murine hepatic tissue. Administration of CGA up-regulated mRNA expression levels of <i>HO-1</i>, <i>NQO1</i>, <i>TNF-α</i> and <i>IL-6</i> in hepatic tissue. CGA exhibited a marked protective effect on CP induced liver injury in mice.</p>","PeriodicalId":8970,"journal":{"name":"Biotechnic & Histochemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138450826","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}
引用次数: 0
Therapeutic effect of berberine against 5-fluorouracil induced ovarian toxicity in rats. 小檗碱对 5-氟尿嘧啶诱导的大鼠卵巢毒性的治疗作用
IF 1.6 4区 生物学
Biotechnic & Histochemistry Pub Date : 2024-10-23 DOI: 10.1080/10520295.2024.2415005
Selim Demir, Nihal Turkmen Alemdar, Hatice Kucuk, Elif Ayazoglu Demir, Ahmet Menteşe, Yuksel Aliyazıcıoğlu
{"title":"Therapeutic effect of berberine against 5-fluorouracil induced ovarian toxicity in rats.","authors":"Selim Demir, Nihal Turkmen Alemdar, Hatice Kucuk, Elif Ayazoglu Demir, Ahmet Menteşe, Yuksel Aliyazıcıoğlu","doi":"10.1080/10520295.2024.2415005","DOIUrl":"https://doi.org/10.1080/10520295.2024.2415005","url":null,"abstract":"<p><p>Berberine (BER) is a naturally occurring alkaloid with a multitude of beneficial effects on human health. Although it is one of the most studied phytochemicals, its curative effect against ovarian damage caused by 5-fluorouracil (5-FU) has not been demonstrated to date. The aim of this study was to investigate the possible protective effect of BER against 5-FU-induced ovotoxicity, focusing on its ability to attenuate oxidative stress, inflammation and apoptosis. The 30 female rats were randomly divided into five groups: Control, BER (2 mg/kg), 5-FU (100 mg/kg), 5-FU+BER (1 mg/kg) and 5-FU+BER (2 mg/kg). The levels of malondialdehyde (MDA), total oxidant status (TOS), total antioxidant status (TAS), superoxide dismutase (SOD), catalase (CAT), 8-hydroxy-2'-deoxyguanosine (8-OHdG), interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α) and caspase-3 were determined using spectrophotometric methods. In addition, ovarian samples were evaluated histopathologically using hematoxylin&eosin staining method. The MDA, TOS, 8-OHdG, IL-6, TNF-α and caspase-3 levels significantly increased by 5-FU administration. Also, we found that 5-FU significantly decreased TAS, SOD and CAT levels. Treatments with BER significantly attenuated the 5-FU-induced ovarian damage via increasing the antioxidant capacity and reducing the oxidative stress, inflammation and apoptosis in a dose-dependent manner. Moreover, the ovoprotective effect of BER was also confirmed by histopathological evaluation. BER may be evaluated as a potential candidate molecule to reduce 5-FU-induced ovarian toxicity.</p>","PeriodicalId":8970,"journal":{"name":"Biotechnic & Histochemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142494592","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}
引用次数: 0
Effects of licorice root (Glycyrrhiza glabra) extract on the livers of obese rats. 甘草提取物对肥胖大鼠肝脏的影响
IF 1.6 4区 生物学
Biotechnic & Histochemistry Pub Date : 2024-10-15 DOI: 10.1080/10520295.2024.2401159
Ahmet Uyar, Barış Özdere, Turan Yaman, Ahmet Ufuk Kömüroğlu
{"title":"Effects of licorice root (<i>Glycyrrhiza glabra)</i> extract on the livers of obese rats.","authors":"Ahmet Uyar, Barış Özdere, Turan Yaman, Ahmet Ufuk Kömüroğlu","doi":"10.1080/10520295.2024.2401159","DOIUrl":"https://doi.org/10.1080/10520295.2024.2401159","url":null,"abstract":"<p><p>We have investigated anti-obesity effects of the extract of licorice (<i>Glycyrrhiza glabra</i>) root in rats with diet-induced obesity and hyperlipidemia by using histopathological and biochemical methods. Thirty-two Wistar albino rats were divided to four groups of eight: normal control (C), high fat diet (HFD), high fat Diet + <i>Glycyrrhiza glabra</i> (HFD+M), and normal diet with <i>Glycyrrhiza glabra</i> (M). The high fat diet contained 300 g/kg fat (4000 kcal/kg); the daily dosage of <i>Glycyrrhiza glabra</i> extract was 1g/kg body weight by orogastric gavage. Supplementation of <i>Glycyrrhiza glabra</i> extract dramatically reduced increases in body weight caused by the induction of obesity. A hepatoprotective effect of <i>Glycyrrhiza glabra</i> extract was supported by the almost normal histology in the livers of the HFD+M rats, in contrast to the degenerative changes in the HFD rats, which included macrovesicular and microvesicular fat deposits, hydropic degeneration, dilatation of sinusoids and coagulation necrosis of some hepatocytes. Serum levels of alanine transaminase (ALT), aspartic transaminase (AST), alkaline phosphatase (ALP), lactate dehydrogenase (LDH), cholesterol (HDL and LDL) and triglycerides, were ameliorated by <i>Glycyrrhiza glabra</i> extract treatment. We conclude that <i>Glycyrrhiza glabra</i> extract given together with HFD could prevent obesity and reduce liver damage in rats.</p>","PeriodicalId":8970,"journal":{"name":"Biotechnic & Histochemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142457278","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}
引用次数: 0
The effect of bisphenol A on the Notch (Notch2 and Jagged2) signaling pathway in the follicular development of the neonatal rat ovary. 双酚 A 对新生大鼠卵泡发育过程中 Notch(Notch2 和 Jagged2)信号通路的影响
IF 1.6 4区 生物学
Biotechnic & Histochemistry Pub Date : 2024-10-09 DOI: 10.1080/10520295.2024.2361313
Özlem Özden Akkaya, Artay Yağci, Berrin Zik, A S M Golam Kibria, Sabire Güler, Sefa Çelik, Korhan Altunbaş
{"title":"The effect of bisphenol A on the Notch (Notch2 and Jagged2) signaling pathway in the follicular development of the neonatal rat ovary.","authors":"Özlem Özden Akkaya, Artay Yağci, Berrin Zik, A S M Golam Kibria, Sabire Güler, Sefa Çelik, Korhan Altunbaş","doi":"10.1080/10520295.2024.2361313","DOIUrl":"https://doi.org/10.1080/10520295.2024.2361313","url":null,"abstract":"<p><p>The formation of primordial follicles determines the pool size of follicles in the ovary, and is crucial for female reproductivity. Oocyte nest breakdown, and the formation of primordial follicles, largely depend upon the communication between oocytes and the surrounding pregranulosa cells. The neurogenic locus notch homolog protein (Notch) signaling pathway is the key player for this cell-to-cell communication, and is responsible for primordial folliculogenesis. However, different endocrine disruptors, including bisphenol A (BPA; a plasticizer and a constituent of reusable plastic containers) may affect the Notch signaling pathway, and might induce ovary dysfunction via Notch signaling. Consequently, we investigated the possible influence of BPA treatment on the proportional distribution of the follicular stages, follicle numbers, levels of apoptosis, and on Notch2 and Jagged2 expressions in the ovary. BPA was administered at doses of either 50 µg/kg/day or 50 mg/kg/day, at different time intervals, during neonatal and fetal periods in vivo. After collecting the ovaries from the various experimental groups, follicles were counted, and frequency of apoptosis was determined by TUNEL assay. In addition, Notch2 and Jagged2 expressions were assessed by immunohistochemical staining and qPCR. In summary, BPA treatment affected the follicle numbers and apoptosis level, and Notch2 and Jagged2 expressions varied with follicular stage. It was also observed that these parameters were dose and time dependent with respect to BPA exposure.</p>","PeriodicalId":8970,"journal":{"name":"Biotechnic & Histochemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142387657","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}
引用次数: 0
Optimized biomarker evaluation and molecular testing in the era of breast cancer precision medicine. 乳腺癌精准医疗时代的生物标志物评估和分子检测优化。
IF 1.6 4区 生物学
Biotechnic & Histochemistry Pub Date : 2024-09-11 DOI: 10.1080/10520295.2024.2390179
David G Hicks,Bradley M Turner
{"title":"Optimized biomarker evaluation and molecular testing in the era of breast cancer precision medicine.","authors":"David G Hicks,Bradley M Turner","doi":"10.1080/10520295.2024.2390179","DOIUrl":"https://doi.org/10.1080/10520295.2024.2390179","url":null,"abstract":"Ground breaking advances in medicine, driven in part by major technologic developments in molecular biology have led us to a new model for cancer care that has been termed personalized, or precision medicine. Precision medicine is a model for making medical decisions that employs an innovative clinical approach and advanced tumor testing methods that are tailored to understanding an individual patient's tumor biology and the molecular drivers of their disease. This medical model includes a combination of diagnostic testing and specific treatment options that can be offered to patients at presentation and in theory throughout the course of their disease as new mutations arise with the development of disease recurrence. Although the precision medicine model offers incredible potential to transform cancer care, these advances are only meaningful when they reach the correct patients. The evolving paradigm of precision medicine is changing the practice of pathology, and the pathology community needs to be mindful of these changes because every tissue specimen represents a patient's life, and those patients are depending on the pathology community to handle their tissue correctly. The diagnostic tests performed in the pathology laboratory for precision medicine are increasingly complex, and pathologists along with the entire laboratory and clinical communities need to take steps to ensure that the right diagnosis is given to the right patient to inform the right treatment options, at the right time, along every step of the continuum of care for cancer patients. While hormone receptors and human epidermal growth factor receptor 2 (HER2) overexpression and/or amplification have been the mainstay for risk-stratification, and treatment decision making in breast cancer since the early 2000's, the seminal work on gene expression by Perou and colleagues in the early 2000's opened the door for molecular testing in the prognostic and predictive assessment of breast cancer. Molecular testing is now part of the standard of care in the precision medicine model for breast cancer care. In this article, the reader will gain a better understanding of how the lack of standardization of pre-analytic factors has the potential to negatively impact the quality of the tissue specimen for downstream biomarker and molecular testing, which ultimately can negatively affect patient care. The reader will also gain insight into the current climate surrounding molecular testing in breast cancer.","PeriodicalId":8970,"journal":{"name":"Biotechnic & Histochemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187810","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}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信