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Biology

Journal

2016

Stem cell

Articles 1 - 6 of 6

Full-Text Articles in Life Sciences

A New Reliable And Sensitive Nested Pcr Assay Based On The Human Sry Gene For Detection Of Interspecific Chimeras, Jie Yu, Kaijing Li, Main Huang, Liping Guan, Min Zhang, Weihua Li, Jianfa Huang, Ting Luo, Wencong Wang, Bikun Xian, Xing Liu, Bing Huang Jan 2016

A New Reliable And Sensitive Nested Pcr Assay Based On The Human Sry Gene For Detection Of Interspecific Chimeras, Jie Yu, Kaijing Li, Main Huang, Liping Guan, Min Zhang, Weihua Li, Jianfa Huang, Ting Luo, Wencong Wang, Bikun Xian, Xing Liu, Bing Huang

Turkish Journal of Biology

Although interspecific chimeras can be identified using laborious techniques, more accurate and rapid detectable methods need to be established. The present study develops a nested polymerase chain reaction (nPCR) assay to detect human-mouse chimeras. A set of previously validated outer primers, specific to the human SRY gene, was used for conventional one-step PCR, while the inner primers for nPCR were designed. The specificities of PCR and nPCR assays were examined; both primer sets yielded PCR amplification products from male human epidermis-derived mesenchymal stem cell-like pluripotent cell DNA but no amplification products from negative control DNA. The sensitivity of this nPCR …


Controlled Nitric Oxide Release For Tissue Repair And Regeneration, Yan Nie, Zongjin Li Jan 2016

Controlled Nitric Oxide Release For Tissue Repair And Regeneration, Yan Nie, Zongjin Li

Turkish Journal of Biology

The discovery that nitric oxide (NO) plays crucial roles in mammalian systems has spurred considerable interest in its translational application. However, the major problem with its application in clinical settings is the high reactivity of NO, which makes it difficult to supply NO with spatiotemporal accuracy while maintaining its bioactivity. To deliver NO at a specified rate to a preferred location for a precise period of time is highly demanded. The significant technological advancements in controlled release make it possible to control NO release at the target site with a sustained release rate and an optimum concentration, and then provide …


A Matter Of Regeneration And Repair: Caspases As The Key Molecules, Şehnaz Bolkent, Füsün Öztay, Selda Oktayoğlu, Serap Sancar Baş, Ayşe Karatuğ Jan 2016

A Matter Of Regeneration And Repair: Caspases As The Key Molecules, Şehnaz Bolkent, Füsün Öztay, Selda Oktayoğlu, Serap Sancar Baş, Ayşe Karatuğ

Turkish Journal of Biology

Researchers have been focused on understanding the pathogenesis of human diseases. They have been working to find the roles of caspases in the balance between apoptosis, autophagy, pyroptosis, and necroptosis, and also in the regeneration of damaged tissue. At this point, besides their death-inducing roles, new findings indicate the role of caspases in proliferation for maintaining the viability of cells in response to signals from apoptotic cells. Recently, determining cell fate has also been identified among other functions of caspases. Findings indicate that caspases direct cellular pathways to cell differentiation by suppressing stem cell self-renewal. The common opinion about the …


Chondroitin Sulfate-Based Biomaterials For Tissue Engineering, Hyuck Joon Kwon, Youngbae Han Jan 2016

Chondroitin Sulfate-Based Biomaterials For Tissue Engineering, Hyuck Joon Kwon, Youngbae Han

Turkish Journal of Biology

Chondroitin sulfate (CS) is a sulfated glycosaminoglycan (GAG) that is usually found attached to proteins as part of a proteoglycan. The use of CS-based biomaterials in the field of tissue engineering applications has been intensively growing over the past decades because CS is a biopolymer with the major advantages of being biodegradable, biocompatible, easily available, and highly versatile. In vitro and in vivo studies have shown that CS-based biomaterials upregulate cartilage-specific gene expression in chondrocytes and mesenchymal stem cells and also support osteogenic differentiation by increasing the effectiveness of bone anabolic growth factors. Chondroitin sulfate proteoglycan plays a key role …


The Heart Of The Matter: Cardiac Stem Cells, Esra Çağavi̇, Arzuhan Koç, Sevi̇lay Şahoğlu Göktaş Jan 2016

The Heart Of The Matter: Cardiac Stem Cells, Esra Çağavi̇, Arzuhan Koç, Sevi̇lay Şahoğlu Göktaş

Turkish Journal of Biology

Cardiovascular diseases are the primary cause of death in the world. Pharmacological and surgical approaches are the main treatment options for heart disease; however, heart transplantation may be the only option for advanced heart failure patients despite its limited nature. Recent advances enabled stem cell-based therapies to become a promising treatment approach for injured or weakened cardiac tissue. With the identification of resident and heart-specific stem cells in early 2000, new avenues of research have been opened to understand heart development, disease, and regeneration. In this review article, different cardiac stem cell subpopulations are classified and defined based on the …


Pluripotent Stem Cells And Their Use In Hearing Loss, Ahmet Hamdi̇ Kepekçi̇, Okan Özgür Özturan, Mustafa Yavuz Köker Jan 2016

Pluripotent Stem Cells And Their Use In Hearing Loss, Ahmet Hamdi̇ Kepekçi̇, Okan Özgür Özturan, Mustafa Yavuz Köker

Turkish Journal of Biology

Throughout its half a century of development, stem cell research has included two main fields: embryonic stem (ES) cell research and the reprogramming of body somatic cells. In the present review we focused on stem cell reprogramming and its relation with otolaryngology. The human body somatic cells are transformed into pluripotent cells by three basic methods: the somatic nuclear transfer method, the somatic cell fusion method (getting cellular pluripotent capacity in cellular reprogramming), and by transcription factors influencing the body somatic cells to generate reprogrammed induced pluripotent stem (iPS) cells. ES cells and iPS cells have pluripotency and differentiate into …