نتایج جستجو برای: germinal epithelium

تعداد نتایج: 53425  

امیرزرگر, علی‌اکبر , حبیبی, بهاره , سیفی, بهجت , صادقی‌پور رودسری, حمیدرضا , نوری موگهی, سید محمد حسین ,

Background: Varicocele is a dilated vein of the pampiniform plexus that cause to det-rimental time-dependent effects so this study describes the effect of varicocele on the level of IL-6 and interferon gamma in serum and testis tissue, number of sertoli and spermatogonia cells, seminiferous tubules diameter and sperm activity in immature rats. Methods: Thirty six immature rats, 5-6 weeks aged ...

Journal: :The Journal of Cell Biology 1975
T Elsdale J Bard

Dr. Prop (3) wonders if a real discrepancy exists between his own observations (5) and those of DiPasquale and Bell (1) and ours (2). The point at issue is whether the upper surface of an attached epithelium can be used by other cells as a substratum on which to stretch out and move in the normal way. On the basis of our respective observations and the published work of others, both DiPasquale ...

Journal: :Mechanisms of Development 2009
Gareth Powell Gavin Wright

The insulin like growth factors (IGFs) first appeared early in phylogeny about 600 million years ago and have increased in number through gene duplication. In mammals IGFs express in all tissues and are found in many biological fluids. IGF-1 has an important role during central nervous system (CNS) development. IGF-1 promotes differentiation, proliferation and prevents apoptosis of neuronal and...

Journal: :The Journal of endocrinology 2004
P Chieffi G Troncone A Caleo S Libertini S Linardopoulos D Tramontano G Portella

Aurora/Ipl1-related kinases are a conserved family of proteins that have multiple functions during mitotic progression. High levels of Aurora kinases are characteristic of rapidly dividing cells and tumours. Aurora B encodes a protein that associates with condensing chromatin, concentrates at centromeres, and then relocates onto the central spindle at anaphase. In this study the expression and ...

Journal: :Mechanisms of Development 2009
Birgit Kagermeier-Schenk Herman Spaink Gilbert Weidinger

The insulin like growth factors (IGFs) first appeared early in phylogeny about 600 million years ago and have increased in number through gene duplication. In mammals IGFs express in all tissues and are found in many biological fluids. IGF-1 has an important role during central nervous system (CNS) development. IGF-1 promotes differentiation, proliferation and prevents apoptosis of neuronal and...

Journal: :Nigerian journal of physiological sciences : official publication of the Physiological Society of Nigeria 2007
O R Asuquo A O Igiri O O Olawoyin E U Eyong

Histological and histometric changes in the testes of albino Wistar rats were correlated. Wistar rats weighing between 180-240 g were randomly divided into three groups of ten rats each. One group served as control and the rats were given normal saline. The second and third groups received 2 mg/kg and 4 mg/kg body weights of chloroquine phosphate daily for thirty days respectively. Seminiferous...

Journal: :Mechanisms of Development 2009
Gonçalo C. Vilhais-Neto Karen Smith Andrew Peterson Jerry Workman Olivier Pourquié

The insulin like growth factors (IGFs) first appeared early in phylogeny about 600 million years ago and have increased in number through gene duplication. In mammals IGFs express in all tissues and are found in many biological fluids. IGF-1 has an important role during central nervous system (CNS) development. IGF-1 promotes differentiation, proliferation and prevents apoptosis of neuronal and...

Journal: :Mechanisms of Development 2009
Farhad Mashayekhi Majid Azari

The insulin like growth factors (IGFs) first appeared early in phylogeny about 600 million years ago and have increased in number through gene duplication. In mammals IGFs express in all tissues and are found in many biological fluids. IGF-1 has an important role during central nervous system (CNS) development. IGF-1 promotes differentiation, proliferation and prevents apoptosis of neuronal and...

2012
Sajad Feyzi-Dehkhargani Rasoul Shahrooz Hassan Malekinejad Rajab-Ali Sadrkhanloo

This study was designed to evaluate the detrimental effect of atrazine (ATR) on germinal epitheliums (GE) cytoplasmic carbohydrate (CH) and unsaturated fatty acids (UFA) ratio and to clarify the effect of ATR on serum levels of FSH, LH, testosterone and inhibin-B (INH-B). The impact of ATR exposure on total antioxidant capacity (TAC), sperm DNA packing and integrity were also investigated. Seve...

Journal: :Biocell : official journal of the Sociedades Latinoamericanas de Microscopia Electronica ... et. al 2002
Mario Aldo Ravaglia María Cristina Maggese

Synbranchus marmoratus (Synbranchidae), commonly known as the swamp eel, is a protogynous diandric teleost fish widely distributed throughout South America. The purpose of this work was to study the ovarian anatomy and to describe oocyte developmental stages in the swamp eel, Synbranchus marmoratus. S. marmoratus has a unique sacular ovary. It is covered by a conspicuous muscular wall, probably...

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