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https://www.readbyqxmd.com/read/28241409/twin-rectal-tonsils-mimicking-carcinoid-or-mucosa-associated-lymphoid-tissue-lymphoma
#1
Masanori Takehara, Naoki Muguruma, Shinji Kitamura, Tetsuo Kimura, Koichi Okamoto, Hiroshi Miyamoto, Yoshimi Bando, Tetsuji Takayama
The rectal tonsil is a rare polypoid lesion exclusively found in the rectum and is considered a reactive proliferation of the lymphoid tissue. Although this lesion is benign, we recommend that it should be differentiated from carcinoid or polypoid type of mucosaassociated lymphoid tissue (MALT) lymphomas, based on gross findings. In this case report, we describe a case of rectal lesions with a unique appearance in a 41-year-old man. Colonoscopy revealed two 5-mm-sized nodules located opposite from each other on the left and right sides of the lower rectum...
February 28, 2017: Clinical Endoscopy
https://www.readbyqxmd.com/read/28240757/-anti-m%C3%A3-llerian-hormone-a-brief-review-of-the-literature
#2
G Ozzola
BACKGROUND: Anti-Müllerian hormone (AMH) is a dimeric glycoprotein, which was originally identified because of its role in male sexual differentiation. In fact, AMH is expressed by the Sertoli cellsof the foetal testes and induces the regression of the Müllerian ducts. In the absence of AMH, the Müllerian ducts evolve in the uterus, fallopian tubes and in the upper part of the vagina. In women AMH is produced by granulose cells, pre-antral and antral follicles and its major physiological role in the ovaries seems to be limited to inhibiting the development of the earliest stages of follicular development...
January 2017: La Clinica Terapeutica
https://www.readbyqxmd.com/read/28240409/underrecognized-clinical-features-of-folliculotropic-mycosis-fungoides-a-large-clinical-series
#3
Can Baykal, Tugba Atci, Sule Ozturk Sari, Algun Polat Ekinci, Nesimi Buyukbabani
BACKGROUND AND OBJECTIVE: A rare variant of mycosis fungoides (MF), folliculotropic MF (FMF) is characterized by a broad clinical spectrum that primarily includes follicle-based lesions but also many atypical clinical manifestations. The objective of the present study was to conduct a clinical analysis of patients with FMF, with a particular focus on highlighting underrecognized dermatological features. PATIENTS AND METHODS: Overall, 27 FMF patients enrolled in our department';s MF registry, which includes 572 patients, were retrospectively reevaluated with regard to demographics, clinical features, treatment modalities, follow-up, and outcomes...
February 27, 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/28240001/polycystic-ovary-syndrome-pcos-diagnostic-criteria-and-amh
#4
Majid Bani Mohammad, Abbas Majdi Seghinsara
The polycystic ovary syndrome (PCOS) is the most common cause of anovulatory infertility and a notable proportion of women of reproductive age are affected. It may constitute a risk factor for cancer development. Different factors could result in different manifestations and many of these are related to predispositions. It is essential to establish criteria to achieve an exact diagnosis of PCOS, especially among adolescent patients because of the overlap between features of PCO syndrome and physiological findings in puberty...
1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28239033/hertwig-s-epithelial-root-sheath-cells-contribute-to-formation-of-periodontal-ligament-through-epithelial-mesenchymal-transition-by-tgf-%C3%AE
#5
Satoshi Itaya, Kyoko Oka, Kayoko Ogata, Shougo Tamura, Michiko Kira-Tatsuoka, Naoki Fujiwara, Keishi Otsu, Eichi Tsuruga, Masao Ozaki, Hidemitsu Harada
In tooth root development, periodontal ligament (PDL) and cementum are formed by the coordination with the fragmentation of Hertwig's epithelial root sheath (HERS) and the differentiation of dental follicle mesenchymal cells. However, the function of the dental epithelial cells after HERS fragmentation in the PDL is not fully understood. Here, we found that TGF-β regulated HERS fragmentation via epithelial-mesenchymal transition (EMT), and the fragmented epithelial cells differentiated into PDL fibroblastic cells with expressing of PDL extracellular matrix (ECM)...
2017: Biomedical Research
https://www.readbyqxmd.com/read/28238709/occludin-expression-and-regulation-in-small-follicles-of-the-layer-and-broiler-breeder-hen
#6
C S Stephens, P A Johnson
Synchronized yolk accumulation and follicle development are essential for egg production in oviparous species. In birds, yolk is incorporated into the oocyte by an avian specific yolk receptor (LR8), and it has been suggested that occludin (OCLN), a tight junction protein, mediates transfer of yolk material to the oocyte surface. OCLN may be a key regulator of yolk accumulation and follicle growth, however, the expression and regulation of OCLN in granulosa cells during various stages of follicle development is unknown...
February 23, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28238662/coordination-by-cdc42-of-actin-contractility-and-adhesion-for-melanoblast-movement-in-mouse-skin
#7
Emma F Woodham, Nikki R Paul, Benjamin Tyrrell, Heather J Spence, Karthic Swaminathan, Michelle R Scribner, Evangelos Giampazolias, Ann Hedley, William Clark, Frieda Kage, Daniel J Marston, Klaus M Hahn, Stephen W G Tait, Lionel Larue, Cord H Brakebusch, Robert H Insall, Laura M Machesky
The individual molecular pathways downstream of Cdc42, Rac, and Rho GTPases are well documented, but we know surprisingly little about how these pathways are coordinated when cells move in a complex environment in vivo. In the developing embryo, melanoblasts originating from the neural crest must traverse the dermis to reach the epidermis of the skin and hair follicles. We previously established that Rac1 signals via Scar/WAVE and Arp2/3 to effect pseudopod extension and migration of melanoblasts in skin...
February 18, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28238531/fibroblast-growth-factor-2-fgf2-and-vascular-endothelial-growth-factor-a-vegfa-synergistically-promote-steroidogenesis-and-survival-of-cultured-buffalo-granulosa-cells
#8
S R Mishra, Jaya Bharati, G Rajesh, V S Chauhan, G Taru Sharma, S Bag, V P Maurya, G Singh, M Sarkar
The present study investigated the combined effect of fibroblast growth factor 2 (FGF2) and vascular endothelial growth factor A (VEGF-A) on estradiol (E2) secretion and relative abundance of mRNA for aromatase enzyme (CYP19A1), proliferating cell nuclear antigen (PCNA) and BCL-2 associated X protein (BAX) in cultured buffalo granulosa cells (GCs). Follicles were isolated and classified into four groups based on size and E2 concentration in follicular fluid (FF): Small, 4-6mm diameter, E2<0.5ng/ml; Medium, 7-9mm, E2=0...
February 21, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28238482/effect-of-weight-loss-on-puberty-onset-in-overweight-children
#9
Thomas Reinehr, Christina Bosse, Nina Lass, Juliane Rothermel, Caroline Knop, Christian Ludwig Roth
OBJECTIVE: To assess the impact of weight changes on the onset of puberty in overweight children. STUDY DESIGN: We evaluated the timing of puberty onset in 160 prepubertal overweight children (aged 11.2 ± 1.0 years) depending on the changes of their weight status in a 1-year lifestyle intervention. We determined body mass index (BMI), pubertal stage, luteinizing hormone (LH), follicle-stimulating hormone, insulin-like growth factor (IGF)-1, insulin-like growth factor binding protein-3, insulin resistance index homeostatic model assessment, and serum gonadotropins at baseline and 1 year later...
February 24, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28238093/role-of-hif-1%C3%AE-and-caspase-3-in-cystogenesis-of-odontogenic-cysts-and-tumors
#10
Natacha M M da Costa, Adriane S de Siqueira, André L R Ribeiro, Maria S da Silva Kataoka, Ruy G Jaeger, Sérgio M de Alves-Júnior, Andrew M Smith, João de Jesus Viana Pinheiro
OBJECTIVES: Odontogenic cysts and tumors are the most relevant lesions that affect the gnathic bones. These lesions have in common the formation of cystic areas and this common feature may suggest involvement of similar mechanisms. The hypoxia inducible factor 1 alpha (HIF-1α), a responsive protein to hypoxia and caspase-3, an irreversible apoptosis marker, may contribute to cyst formation. Thus, this study aimed to investigate the immunoexpression of these proteins in odontogenic cysts and tumors...
February 25, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28237669/disruption-of-the-hypothalamic-pituitary-thyroid-axis-on-co-exposures-to-dithiocarbamate-and-neonicotinoid-pesticides-study-in-a-wildlife-bird-amandava-amandava
#11
Surya Prakash Pandey, Banalata Mohanty
Non-target organisms, including human and wildlife, are susceptible to deleterious effects of pesticide mixtures in their environment. Present study demonstrated the disruption of the hypothalamic-pituitary-thyroid (HPT) axis in a seasonally breeding wildlife bird Amandava amandava on co-exposure to dithiocarbamate mancozeb/MCZ and neonicotinoid imidacloprid/IMI, at concentrations even lower than respective environmentally realistic exposure level of each of the pesticide. Adult male birds (n=8/group) were exposed individually to 0...
February 22, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28237349/repeatability-of-antral-follicle-counts-and-anti-m%C3%A3-llerian-hormone-and-their-associations-determined-at-an-unknown-stage-of-follicular-growth-and-an-expected-day-of-follicular-wave-emergence-in-dairy-cows
#12
M Gobikrushanth, P A Dutra, T C Bruinjé, M G Colazo, S T Butler, D J Ambrose
The objectives were to determine (1) the repeatability of antral follicle counts (AFC) and anti-Müllerian hormone (AMH) concentrations at an unknown stage of follicular growth (FG) and at an expected day of follicular wave emergence (FWE) in dairy cows, and (2) the association between AFC and AMH at the above two stages. Transrectal ultrasound imaging of the ovaries and blood sample collection were performed on 91 lactating Holstein cows (33 primiparous, 58 multiparous) to determine AFC and serum concentrations of AMH at an unknown stage of FG (mean ± SEM; 14 ± 0...
April 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28237339/embryo-production-in-heifers-with-low-or-high-dry-matter-intake-submitted-to-superovulation
#13
Marcos R Mollo, Pedro L J Monteiro, Ricardo S Surjus, Aline C Martins, Alexandre F Ramos, Gerson B Mourão, Luiz H D Carrijo, Gláucio Lopes, Rodolfo Rumpf, Milo C Wiltbank, Roberto Sartori
This study investigated the influence of feed intake on superovulatory response and embryo production of Nelore heifers. Pubertal heifers were kept in a feedlot and were submitted to the same diets, but with different levels of feed consumption: High (1.7 M; n = 20) or Low (0.7 M; n = 19) feed intake. Heifers in the 1.7 M treatment consumed 170% (2.6% of body weight [BW] in dry matter) and the 0.7 M heifers ate 70% (1.1% of BW in dry matter) of a maintenance diet. After 7 wk on these diets, heifers were treated with eight decreasing doses of follicle-stimulating hormone (FSH) given every 12 h, totaling 133 mg Folltropin (Folltropin-V; Bioniche Animal Health, Canada) per heifer...
April 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28237336/effect-of-numbers-of-sperm-and-timing-of-a-single-post-cervical-insemination-on-the-fertility-of-weaned-sows-treated-with-ovugel-%C3%A2
#14
R V Knox, K C Esparza-Harris, M E Johnston, S K Webel
Variability in estrus and ovulation requires multiple inseminations during estrus to ensure one AI occurs close to ovulation. Induction of ovulation after weaning improves synchrony of ovulation and allows for fixed time AI. However, the interaction between number of sperm in the AI dose and the timing of insemination has not been fully investigated. The objective of this study was to determine the effects of sperm numbers used in a single post-cervical insemination (PCAI) and the timing of insemination following induced ovulation in weaned sows...
April 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28237324/in%C3%A2-vitro-production-of-embryos-using-immature-oocytes-collected-transvaginally-from-superstimulated-wood-bison-bison-bison-athabascae
#15
Miriam P Cervantes, J Manuel Palomino, Muhammad Anzar, Reuben J Mapletoft, Gabriela F Mastromonaco, Gregg P Adams
Two experiments were done to test the hypothesis that morphologic characteristics of wood bison cumulus-oocyte complexes (COC) are reflective of the ability of the oocyte to develop to an advanced embryonic stage after in vitro maturation, fertilization and culture, and to determine the effect of prolonging the interval from the end of superstimulation treatment to oocyte collection (FSH starvation period). Experiments were done during the anovulatory season. In Experiment 1, ovarian superstimulation was induced in 10 bison with two doses of FSH given at 48 h intervals beginning at the time of follicular wave emergence...
April 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28235252/chromosomal-anomalies-and-sperm-retrieval-outcomes-of-patients-with-non-obstructive-azoospermia-a-case-series
#16
T Takeda, S Iwatsuki, T Hamakawa, K Mizuno, H Kamiya, Y Umemoto, H Kubota, Y Kubota, S Sasaki, T Yasui
Some preoperative factors affecting the outcome of microdissection testicular sperm extraction (micro-TESE) have been previously evaluated. However, other than Klinefelter syndrome (KS), no other chromosomal anomalies have been discussed in the context of sperm retrieval outcomes. The objective of this study was to describe chromosomal anomalies and their relationship with sperm retrieval outcomes in patients with non-obstructive azoospermia (NOA). Of the 197 NOA patients whose clinical records were retrospectively reviewed, 144 (73...
February 24, 2017: Andrology
https://www.readbyqxmd.com/read/28233264/does-bariatric-surgery-improve-assisted-reproductive-technology-outcomes-in-obese-infertile-women
#17
Marco Milone, Loredana M Sosa Fernandez, Laura V Sosa Fernandez, Michele Manigrasso, Ugo Elmore, Giovanni D De Palma, Mario Musella, Francesco Milone
BACKGROUND: Little is known about the impact of bariatric surgery on obese infertile women seeking an assisted reproductive technology. METHODS: All obese women with a history of assisted reproductive technology (ART) failure that underwent ART treatment cycles both prior to and following bariatric surgery were included. ART outcomes were compared evaluating the duration and dose of gonadotrophins used; the measurement of day 3 FSH; the anti-mullerian hormone dosage; the number of follicles >15 mm; the number of retrieved and fertilized oocytes; the number of metaphase II, metaphase I and germinal vesicle oocytes; the number of embryos obtained; the number of top-quality oocytes and embryos; the number of transferred embryo; the pregnancy rate and the live birth rate...
February 23, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28233123/the-role-of-macrophages-in-skin-homeostasis
#18
REVIEW
Diana A Yanez, Richard K Lacher, Aurobind Vidyarthi, Oscar R Colegio
The skin and its appendages comprise the largest and fastest growing organ in the body. It performs multiple tasks and maintains homeostatic control, including the regulation of body temperature and protection from desiccation and from pathogen invasion. The skin can perform its functions with the assistance of different immune cell populations. Monocyte-derived cells are imperative for the completion of these tasks. The comprehensive role of macrophages and Langerhans cells in establishing and maintaining skin homeostasis remains incompletely defined...
February 23, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28231979/decellularized-matrix-derived-from-neural-differentiation-of-embryonic-stem-cells-enhances-the-neurogenic-potential-of-dental-follicle-stem-cells
#19
Boon Chin Heng, Ting Gong, Shuai Wang, Lee Wei Lim, Wutian Wu, Chengfei Zhang
INTRODUCTION: Dental follicle stem cells (DFSCs) possess neurogenic potential because they originate from the embryonic neural crest. This study investigated whether neural differentiation of DFSCs can be enhanced by culture on decellularized matrix substrata (NSC-DECM) derived from neurogenesis of human embryonic stem cells (hESCs). METHODS: The hESCs were differentiated into neural stem cells (NSCs), and NSC-DECM was extracted from confluent monolayers of NSCs through treatment with deionized water...
March 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28231696/performance-differences-of-rhode-island-red-bashang-long-tail-chicken-and-their-reciprocal-crossbreds-under-natural-cold-stress
#20
Shanshan Xie, Xukai Yang, Yahui Gao, Wenjie Jiao, Xinghua Li, Yajie Li, Zhonghua Ning
Objective: The Bashang Long-tail chicken (BS), an indigenous Chinese breed, is considered cold tolerant. We selected BS, the Rhode Island Red (RIR), and their reciprocal crossbreds for the present study. The objectives were: 1) to validate whether BS is cold tolerant and whether egg production and cold tolerance of crossbreds could be improved; and 2) to determine the physiological characteristics that underlie cold tolerance and favorable egg production performance in cold environments...
February 23, 2017: Asian-Australasian Journal of Animal Sciences
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