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Acta Histochemica

Muktanand Tripathi, Akhand Pratap Singh, Gopal Gupta, Singh Rajender
This study aimed at investigating the expression and localization of the polyol pathway enzymes; aldose reductase (AR) and sorbitol dehydrogenase (SDH), in the male reproductive tract of rat. Gene expression analysis showed maximum expression of AR and SDH in the coagulating glands. Western blot analysis showed a coordinated presence of the two enzymes in the coagulating glands, seminal vesicle and epididymis. Immunohistochemistry showed a concordant expression of the two enzymes in the coagulating gland, which goes well with its function of fructose production in rats...
September 29, 2016: Acta Histochemica
Dimitrinka Y Atanasova, Nikolay D Dimitrov, Nikolai E Lazarov
The carotid body (CB) is a major peripheral arterial chemoreceptor organ that evokes compensatory reflex responses so as to maintain gas homeostasis. It is dually innervated by sensory fibers from petrosal ganglion (PG) neurons, and autonomic fibers from postganglionic sympathetic neurons of the superior cervical ganglion (SCG) and parasympathetic vasomotor fibers of intrinsic ganglion cells in the CB. The presence of nitric oxide (NO), a putative gaseous neurotransmitter substance in a number of neuronal and non-neuronal structures, was examined in the CB, PG and SCG of the rat using nicotinamide adenine dinucleotide phosphate diaphorase (NADPH-d) histochemistry, nitric oxide synthase (NOS) immunohistochemistry and retrograde tracing...
September 28, 2016: Acta Histochemica
Lipeng Bai, Danting Li, Jie Li, Zhengzhong Luo, Shumin Yu, Suizhong Cao, Liuhong Shen, Zhicai Zuo, Xiaoping Ma
Umbilical cord mesenchymal stem cells (UCMSCs) retain their intrinsic stem cell potential while at the same time displaying high proliferation rates, powerful differentiation capacity, and low immunogenicity. They can also secrete multiple bioactive molecules that exert specific physiological functions. Thus, UCMSCs represent excellent candidates for cell therapy in regenerative medicine and tissue engineering. Abundant preclinical research on different disease models has shown that UCMSCs can accelerate wound or nerve damage recovery and suppress tumor progression...
September 28, 2016: Acta Histochemica
Vladimir A Maisky, Olena P Mankivska, Andriy V Maznychenko, Oleh V Vlasenko, Olexandr V Dovgan', Eike D Schomburg, Heinz Steffens
The NADPH-diaphorase activity and Fos-immunoreactivity within the ventral horn of the lumbar spinal cord were studied in cats with acute unilateral myositis following injection of carrageenan into the m.m. gastrocnemius-soleus. In carrageenan-injected cats maximum in the mean number of intensely stained NADPH-diaphorase reactive (NADPH-dr) neurons was found in lamina VII (+100%) and VIII (+33%) of the contralateral ventral horn of the L6/L7 segments as compared with control animals. The maximumal level of Fos-immunoreactivity was registered in the same laminae with ipsilateral predominance (39...
September 27, 2016: Acta Histochemica
Zaki Hakami, Satoshi Wakisaka
The development of submucosal glands of rat nasopharynx was studied with respect to their morphological maturation and glycoprotein alterations during the postnatal period. This study examined the histological morphology with hematoxylin-eosin and the binding pattern of lectins, soybean agglutinin (SBA), Dolichos biflorus agglutinin (DBA), Vicia villosa agglutinin (VVA), Ulex europaeus agglutinin-I (UEA-I), peanut agglutinin (PNA), wheat germ agglutinin (WGA), and succinylated WGA (sucWGA) on frozen sections from newborn into adulthood...
September 23, 2016: Acta Histochemica
Sungin Lee, Aeri Lee, Oh-Kyeong Kweon, Wan Hee Kim
The hormone leptin is produced by mature adipocytes and plays an important role in regulating food intake and energy metabolism through its interaction with the leptin receptor. In addition to roles in obesity and obesity-related diseases, leptin has been reported to affect the components and secretion of bile in leptin-deficient mice. Furthermore, gallbladder diseases such as cholelithiasis are known to be associated with serum leptin concentrations in humans. We hypothesized that the canine gallbladder is a source of leptin and that the leptin receptor may be localized in the gallbladder, where it plays a role in regulating the function of this organ...
September 19, 2016: Acta Histochemica
K C Camargo, J R Gomes, M M Loddi, R de Sordi, C L S Costa-Ayub, M A de M Soares
Membrane type 1-matrix metalloproteinase (MT1-MMP) is involved in numerous biological processes, including morphogenesis. However, the role of MT1-MMP in the development of the vertebrate intestine is poorly understood. This study aimed to evaluate the expression of MT1-MMP in the intestine of rats and chickens along the embryonic and postnatal periods using immunohistochemistry. Results revealed a remarkable spatiotemporal correlation between MT1-MMP expression and intestinal villi morphogenesis in both vertebrates...
September 14, 2016: Acta Histochemica
Sueun Lee, Sohi Kang, Juhwan Kim, Seongwook Yoon, Sung-Ho Kim, Changjong Moon
Immediate-early genes (IEGs) are transiently and rapidly activated in response to various cellular stimuli. IEGs mediate diverse functions during pathophysiologic events by regulating cellular signal transduction. We investigated the temporal expression of several IEGs, including c-fos, early growth response protein-1 (Egr-1), and activity-regulated cytoskeleton-associated protein (Arc), in trimethyltin (TMT)-induced hippocampal neurodegeneration. Mice (7 weeks old, C57BL/6) administered TMT (2.6mg/kg intraperitoneally) presented severe neurodegenerative lesions in the dentate gyrus (DG) and showed behavioral seizure activity on days 1-4 post-treatment, after which the lesions and behavior recovered spontaneously over time...
September 7, 2016: Acta Histochemica
Ji Sook Kim, Ji Hyung Chae, Yong-Pil Cheon, Chul Geun Kim
Maintaining stemness and permitting differentiation mediated by combinations of transcription factors (TFs) are key aspects of mammalian spermatogenesis. It has been established that yin yang 1 (YY1), a target factor of mammalian polycomb repressive complex 2 (PRC2) and a regulator of stemness, is involved in the stable maintenance of prophase stage spermatocytes. Recently, we have demonstrated that the TF CP2c partners with YY1 in some cells to antagonistically regulate the other protein's function. To date, the functional roles of YY1 and CP2c in spermatogonial stem cells and their derived germ cells remain unclear...
September 6, 2016: Acta Histochemica
I Tica Sedlar, J Petricevic, M Saraga-Babic, I Pintaric, K Vukojevic
AIM: Programmed cell death is essential both during normal organ development and carcinogenesis. In this study we immunohistochemically analyzed different pathways of cell death in 11 human conceptuses 5th-10th-weeks old, 10 low and high grade colorectal carcinomas (CRC), and 10 normal colon samples by using markers for apoptosis (caspase-3, AIF, TUNEL), proliferation (Ki-67) and stemness (Oct-4). RESULTS: Between the 5th and 10th week of development, caspase-3 and AIF showed moderate-to-strong expression in the developing gut wall...
September 6, 2016: Acta Histochemica
Claudius Luziga, Bui Thi To Nga, Gabriel Mbassa, Yoshimi Yamamoto
Cathepsins B and L are two prominent members of cystein proteases with broad substrate specificity and are known to be involved in the process of intra- and extra-cellular protein degradation and turnover. The propeptide region of cathepsin L is identical to Cytotoxic T-lymphocyte antigen-2α (CTLA-2α) discovered in mouse activated T-cells and mast cells. CTLA-2α exhibits selective inhibitory activities against papain and cathepsin L. We previously demonstrated the distribution pattern of the CTLA-2α protein in mouse brain by immunohistochemistry, describing that it is preferentially localized within nerve fibre bundles than neuronal cell bodies...
August 29, 2016: Acta Histochemica
Zeljka Peric Kacarevic, Darija Snajder, Andela Maric, Nikola Bijelic, Olga Cvijanovic, Robert Domitrovic, Radivoje Radic
In obesity, bone marrow adiposity increases and proinflammatory cytokines excretion activates RANK/RANKL/OPG system, which leads to increased bone resorption. The aim of this study was to analyze trabecular and cortical bone parameters in animals exposed to the high-fat diet in utero and after lactation. Skeletal organ of interest was the fifth lumbar vertebra, which is not exposed to biomechanical loading in rats. Further aims were to determine TNF-α and IL-6 serum concentrations, and the intensity of the TNF-α immunohistochemical staining in the bone marrow...
August 27, 2016: Acta Histochemica
Claudemir Kuhn Faccioli, Renata Alari Chedid, Ricardo Hideo Mori, Antônio Carlos do Amaral, Irene Bastos Franceschini-Vicentini, Carlos Alberto Vicentini
This cytochemical study investigated the acid and alkaline phosphatase of the digestive tract of Hemisorubim platyrhynchos. Acid phosphatase was detected in the lining epithelium throughout the digestive tract, whereas alkaline phosphatase was only observed in the intestine. In the esophagus, an acid phosphatase reaction occurred in the apical cytoplasm of the epithelial cells and was related to epithelial protection and freeing of superficial cells for sloughing. Similar results were also observed in epithelial cells of gastric epithelium...
August 7, 2016: Acta Histochemica
Branka Šošić-Jurjević, Vladimir Ajdžanović, Branko Filipović, Svetlana Trifunović, Ivana Jarić, Nataša Ristić, Verica Milošević
We previously reported that Vitex agnus-castus L. essential oil (VACEO), when administered to middle-aged males, exerts a bone-protective effect, induces silencing of locomotor activities and decreases pituitary prolactin immunopositivity. To further assess the putative endocrine effects of VACEO, we examined the pituitary-thyroid and -adrenocortical axes in our model. Sixteen-month-old Wistar rats were subcutaneously administered 60mg/kg of VACEO dissolved in sterile olive oil, while the control group received the same amount of vehicle alone for three weeks...
July 28, 2016: Acta Histochemica
Turan Demircan, Ayşe Elif İlhan, Nilüfer Aytürk, Berna Yıldırım, Gürkan Öztürk, İlknur Keskin
Axolotl (Ambystoma Mexicanum) has been emerging as a promising model in stem cell and regeneration researches due to its exceptional regenerative capacity. Although it represents lifelong lasting neoteny, induction to metamorphosis with thyroid hormones (THs) treatment advances the utilization of Axolotl in various studies. It has been reported that amphibians undergo anatomical and histological remodeling during metamorphosis and this transformation is crucial for adaptation to terrestrial conditions. However, there is no comprehensive histological investigation regarding the morphological alterations of Axolotl organs and tissues throughout the metamorphosis...
July 16, 2016: Acta Histochemica
Cynthia Priscilla do Nascimento Bonato Panizzon, Jacqueline Nelisis Zanoni, Catchia Hermes-Uliana, Aline Rosa Trevizan, Camila Caviquioli Sehaber, Renata Virginia Fernandes Pereira, David Robert Linden, Marcílio Hubner de Miranda Neto
BACKGROUND/AIMS: Enteric neuropathy associated with Diabetes Mellitus causes dysfunction in the digestive system, such as: nausea, diarrhea, constipation, vomiting, among others. The aim of this study was to compare the effects of supplementation with 2% l-glutamine and 1% l-glutathione on neurons and enteric glial cells of ileum of diabetic rats. METHODS: Thirty male Wistar rats have been used according to these group distributions: Normoglycemic (N), Normoglycemic supplemented with l-glutamine (NG), Normoglycemic supplemented with l-glutathione (NGO), Diabetic (D), Diabetic supplemented with l-glutamine (DG) and Diabetic supplemented with l-glutathione (DGO)...
July 2016: Acta Histochemica
S M J Mortazavi, Ghazal Mortazavi, Maryam Paknahad
No abstract text is available yet for this article.
July 2016: Acta Histochemica
Mirca Marini, Roberto Bertolai, Mirko Manetti, Eleonora Sgambati
The vascular endothelial growth factor (VEGF)/VEGF receptor (VEGFR) system plays an important role in angiogenesis and osteogenesis during both skeletal development and postnatal bone growth and repair. Indeed, protein expression changes of this system could contribute to craniofacial defects commonly associated with a variety of congenital syndromes. Similarly to other craniofacial bones, mandible arises from neural crest cells of the neuroectodermal germ layer, and undergoes membranous ossification. Here, we report a case of left mandibular hypoplasia in a 42-year-old man treated with autologous bone graft from mandibular symphysis...
July 2016: Acta Histochemica
Guiping Wang, Linlin Liu, Shujuan Guo, Cong Zhang
Xenopus forkhead activin signal transducer 1 (xFAST 1) was first characterized in Xenopus as the transcriptional partner for Smad proteins. FAST2, which is the xFAST 1 homologues in mouse, is expressed during early developmental stages of the organism. However, the function of FAST2 in mouse ovaries and pre-implantation embryos is unclear. Therefore, we investigated its expression during these processes. In postnatal mice, FAST2 was expressed in oocytes and thecal cells from postnatal day (PD) 1 to PD 21. In gonadotropin-induced immature mice, FAST2 was expressed in oocytes, thecal cells and newly formed corpora lutea (CLs), but was expressed at a lower level in degenerated CLs...
July 2016: Acta Histochemica
Camila Pivari Pedroso Sakoda, Alessandra Choqueta de Toledo, Adenir Perini, Nathalia Montouro Pinheiro, Meire Ioshie Hiyane, Simone Dos Santos Grecco, Iolanda de Fátima Lopes Calvo Tibério, Niels Olsen Saraiva Câmara, Milton de Arruda Martins, João Henrique Ghilardi Lago, Renato Fraga Righetti, Carla Máximo Prado
BACKGROUND AND PURPOSE: Asthma is a disease of high prevalence and morbidity that generates high costs in hospitalization and treatment. Although the airway is involved in the physiopathology of asthma, there is also evidence of the importance of vascular and lung parenchyma inflammation and remodeling, which can contribute to the functional pulmonary alterations observed in asthmatic patients. Our aim was to evaluate treatment using sakuranetin, a flavone isolated from the twigs of Baccharis retusa (Asteraceae), on vascular and lung parenchyma alterations in an experimental murine model of asthma...
July 2016: Acta Histochemica
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