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https://www.readbyqxmd.com/read/28823088/electrical-signals-triggered-controllable-formation-of-calcium-alginate-film-for-wound-treatment
#1
Xiaoli Liu, Huan Liu, Xue Qu, Miao Lei, Chuchu Zhang, Hua Hong, Gregory F Payne, Changsheng Liu
Wound dressings play important roles in the management of wounds, and calcium cross-linked alginate (Ca(2+)-Alg) is a commonly used hydrogel that is adapted for wound treatment. However, conventional methods for fabricating Ca(2+)-Alg hydrogels can be tedious and difficult to control because of the rapid Ca(2+)-induced gelation of alginate. In this study, An electrodeposition method was used to rapidly and controllably fabricate Ca(2+)-Alg films for wound treatment. Several measures of film growth (e.g., thickness and mass) are shown to linearly correlate to the imposed charge transfer at the electrode...
August 19, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28822904/the-effect-of-age-and-length-of-gonadotropin-stimulation-on-the-in%C3%A2-vitro-embryo-development-of-holstein-calf-oocytes
#2
Luke Currin, Laura Michalovic, Anne-Marie Bellefleur, Karina Gutierrez, Werner Glanzner, Yasmin Schuermann, Rodrigo C Bohrer, Naomi Dicks, Paulo R da Rosa, Matheus P De Cesaro, Rosalba Lopez, François-Xavier Grand, Christian Vigneault, Patrick Blondin, Jim Gourdon, Hernan Baldassarre, Vilceu Bordignon
The use of oocytes recovered from prepubertal donors for in vitro embryo production has great potential for accelerating the rate of genetic gain in the dairy industry. However, these oocytes are known to be less developmentally competent than those from adult donors. In this study, we investigated the effect of age and gonadotropin stimulation in Holstein heifers subjected to oocyte collection every two weeks between 2 and 6 months of age. In order to assess the effect of gonadotropin stimulation, animals were subjected to one of three treatments, namely Short (ST; 36-42 h), Long (LT; ≥72 h) and No Treatment (NT) prior to laparoscopic ovum pick-up (LOPU)...
August 10, 2017: Theriogenology
https://www.readbyqxmd.com/read/28822903/uterine-clinical-findings-fertility-rate-leucocyte-migration-and-cox-2-protein-levels-in-the-endometrial-tissue-of-susceptible-mares-treated-with-platelet-rich-plasma-before-and-after-ai
#3
Lorenzo G Segabinazzi, Aime M Friso, Sebastian B Correal, André M Crespilho, José Antonio Dell'Aqua, Jordi Miró, Frederico O Papa, Marco Antonio Alvarenga
Persistent mating-induced endometritis (PMIE) results in decreased fertility in horses, thereby causing a significant impact in the horse market. Platelet-rich plasma (PRP), a modulator of the inflammatory response, has been largely used in veterinary medicine. Here, we investigated the effects of PRP on uterine inflammation, conception rate, endometrial polymorphonuclear neutrophil (PMN) migration, and COX-2 protein levels in the endometrial tissue. Thirteen PMIE-susceptible mares were used for artificial insemination (AI)...
August 12, 2017: Theriogenology
https://www.readbyqxmd.com/read/28822776/assessment-of-ovarian-follicular-dynamics-and-folliculogenesis-associated-endocrine-profiles-following-gonadotropin-stimulation-in-the-bonnet-monkey
#4
Bhupathi Sukesh, Muraly Puttabyatappa, Augustine T Peter, Rudraiah Medhamurthy, Polani B Seshagiri
We evaluated ovarian follicular dynamics in bonnet monkeys by employing trans-abdominal ultrasonography. Following the administration of human follicle stimulating hormone (hFSH) and/or human menopausal gonadotropin (hMG), multiple follicular development was assessed and their numbers, size and growth profiles were monitored. The ultrasonograms showed that the follicular antrum appeared distinctly anechoic with well-defined hyperechoic borders. Depending on the type, quantity (12.5-25 IU), and duration (6-9 days) of hormones administered, the number of developing follicles was 2-12 per ovary with their lowest diameter being 2 mm...
August 16, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28822774/effects-of-neuropeptides-and-sex-steroids-on-the-pituitary-gonadal-axis-of-pre-pubertal-f1-wreckfish-h%C3%A4-puku-polyprion-oxygeneios-in-vivo-evidence-of-inhibitory-effects-of-androgens
#5
Matthew J Wylie, Alvin N Setiawan, Glen W Irvine, Jane E Symonds, Abigail Elizur, P Mark Lokman
The ability to advance puberty in broodstock that have a long generation interval and mature at large size is a highly valuable tool in contemporary aquaculture enterprise. Juvenile male and female wreckfish 'hāpuku' (Polyprion oxygeneios), a candidate for commercialization in aquaculture, were subjected to treatment for 8 weeks with two implants, one containing steroid (blank; estradiol-17β, E2; 11-ketotestosterone, KT; 17 α -methyltestosterone, MT), the other peptide (blank; gonadotropin-releasing hormone analog, GnRHa; kisspeptin, Kiss2-12)...
August 16, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28822715/reproductive-outcomes-of-segmented-in-vitro-fertilization-in-patients-diagnosed-with-endometriomas
#6
Kemal Ozgur, Hasan Bulut, Murat Berkkanoglu, Kevin Coetzee
STUDY OBJECTIVE: To assess the impact of ovarian endometriomas on endometrial receptivity in frozen embryo transfers (FET) of segmented in vitro fertilization (IVF) cycles. DESIGN: Retrospective, matched-control study (Canadian Task Force Classification II-2). SETTING: A single, private assisted reproductive technology center. PATIENTS: Thirty patients diagnosed with unilateral or bilateral endometrioma were compared with 60 patients without endometrioma from 1,894 patients who underwent segmented IVF treatment between September 2014 and September 2016...
August 16, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28822678/signs-of-disease-occur-in-the-majority-of-third-molars-in-an-adult-population
#7
I Ventä, M M Vehkalahti, S Huumonen, A L Suominen
The purpose of this study was to assess clinical and radiographic signs of disease in third molars within a population that is representative of the Finnish adult population aged 30 years and older. A two-stage stratified cluster sampling method was used to collect the 6005 subjects, who were examined clinically and also by panoramic radiography. The state of impaction, presence of dentinal caries and/or restorations, presence of root canal fillings, periodontal pocket depth, and additional pathological findings such as over-eruption and widened follicle were assessed...
August 16, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28821386/serum-and-follicular-fluid-testosterone-concentrations-do-not-correlate-questioning-the-impact-of-androgen-supplementation-on-the-follicular-endocrine-milieu
#8
Michael von Wolff, Petra Stute, Markus Eisenhut, Ulrich Marti, Norman Bitterlich, Nick A Bersinger
Basic research into a possible link between serum and follicular fluid androgen concentrations to detemine whether androgen supplementation in low responders affects follicular endocrine milieu is still lacking. Ninety-seven women (aged 28-43 years) undergoing one natural IVF cycle without any hormone stimulation were analysed. Serum and follicular fluid were collected at the time of follicle aspiration, and the concentrations of LH, total testosterone, oestradiol, dehydroepiandrosterone and anti-Mullerian hormone (AMH) were determined...
August 2, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28821195/atypical-igg4-plasmacytic-proliferations-and-lymphomas-characterization-of-11-cases
#9
Jacob R Bledsoe, Zachary S Wallace, Vikram Deshpande, Joshua R Richter, Jason Klapman, Andrew Cowan, John H Stone, Judith A Ferry
Objectives: To report the clinicopathologic features of monotypic immunoglobulin G4+ (IgG4+) lymphoid and plasmacytic proliferations. Methods: Cases were identified from the pathology files. Pathology and clinical materials were reviewed. Results: Eleven cases of monotypic IgG4+ proliferations were identified at nodal, orbital, or salivary sites. Six cases (three men, three women; age, 57-94 years) met criteria for lymphoma or plasma cell neoplasia...
September 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28821191/impact-of-noninvasive-follicular-thyroid-neoplasm-with-papillary-like-features-on-adequacy-criteria-and-risk-of-malignancy-of-thyroid-fine-needle-aspiration
#10
Andrew A Renshaw, Edwin W Gould
Objectives: The impact of noninvasive follicular thyroid neoplasm with papillary-like features (NIFTP) on nondiagnostic and benign diagnoses is not well characterized. Methods: The results of all thyroid fine-needle aspirates (FNAs) performed from 1997 to June 2016 with corresponding resections were reviewed. Results: From 12,764 aspirates, there were 8,106 (64%) benign diagnoses with 412 (5%) resections and 1,888 (14.8%) nondiagnostic diagnoses with 329 (17%) resections...
September 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28820416/-ovarian-reserve-and-effectiveness-of-ivf-in-women-of-various-age-groups
#11
A Sayadyan, E Totoyan
The purpose of this study is a comparative assessment of ovarian reserve parameters and the effect of these indices on the features of follicle and oogenesis in women of different age groups. A retrospective analysis of IVF results was conducted in 101 patients aged 21 to 49 years. All patients were divided into 4 groups according to age: I group up to 30 y.o. - 45 women, II group - 31-35 y.o - 14 women, III group - 36-40 y.o. - 26 women, IV Group - 41 or more - 16 women. A low ovarian reserve was found in the majority (84,6%) of women in group III and in all women in group IV...
July 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28820403/high-levels-of-soluble-vascular-endothelial-growth-factor-receptor-1-sflt1-and-low-levels-of-vascular-endothelial-growth-factor-in-follicular-fluid-on-the-day-of-oocyte-retrieval-correlate-with-ovarian-hyperstimulation-syndrom-regardless-of-the-stimulation
#12
A J Jakimiuk, M A Nowicka, M Zagozda, K Koziol, P Lewandowski, T Issat
The aim of the study was to assess the predictive value of vascular endothelial growth factor (VEGF), its soluble receptor - sVEGF-R1/sFlt1 and endocrine gland-derived vascular endothelial growth factor (EG-VEGF) concentrations in serum and follicular fluid (FF) for ovarian hyperstimulation syndrome (OHSS) in women undergoing controlled ovarian hyperstimulation (COH) protocols. Patients have been divided into 3 groups: control group on natural cycle, patients stimulated with GnRH agonist and patients stimulated with GnRH antagonist...
June 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28819292/vitrification-versus-slow-freezing-for-human-ovarian-tissue-cryopreservation-a-systematic-review-and-meta-anlaysis
#13
Qingquan Shi, Yidong Xie, Yan Wang, Shangwei Li
Vitrification is a well-accepted procedure for cryopreservation of gametes and embryos. Less is known, however, about its performance in preserving ovarian tissue, for which slow freezing is the current convention. Increasing interest is being focused on vitrification, but there are as yet no standard protocols for its use with ovarian tissue. In part, this is because of the variety of cell types and complex nature of ovarian tissue. We performed a meta-analysis of 14 studies that compared vitrification with slow freezing for cryopreservation of ovarian tissue...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28817806/specialized-mechanosensory-nociceptors-mediating-rapid-responses-to-hair-pull
#14
Nima Ghitani, Arnab Barik, Marcin Szczot, James H Thompson, Chia Li, Claire E Le Pichon, Michael J Krashes, Alexander T Chesler
The somatosensory system provides animals with the ability to detect, distinguish, and respond to diverse thermal, mechanical, and irritating stimuli. While there has been progress in defining classes of neurons underlying temperature sensation and gentle touch, less is known about the neurons specific for mechanical pain. Here, we use in vivo functional imaging to identify a class of cutaneous sensory neurons that are selectively activated by high-threshold mechanical stimulation (HTMRs). We show that their optogenetic excitation evokes rapid protective and avoidance behaviors...
August 16, 2017: Neuron
https://www.readbyqxmd.com/read/28817572/tissue-specific-insulin-signaling-mediates-female-sexual-attractiveness
#15
Tatyana Y Fedina, Devin Arbuthnott, Howard D Rundle, Daniel E L Promislow, Scott D Pletcher
Individuals choose their mates so as to maximize reproductive success, and one important component of this choice is assessment of traits reflecting mate quality. Little is known about why specific traits are used for mate quality assessment nor about how they reflect it. We have previously shown that global manipulation of insulin signaling, a nutrient-sensing pathway governing investment in survival versus reproduction, affects female sexual attractiveness in the fruit fly, Drosophila melanogaster. Here we demonstrate that these effects on attractiveness derive from insulin signaling in the fat body and ovarian follicle cells, whose signals are integrated by pheromone-producing cells called oenocytes...
August 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28817118/altered-marginal-zone-and-innate-like-b-cells-in-aged-senescence-accelerated-samp8-mice-with-defective-igg1-responses
#16
Isabel Cortegano, Mercedes Rodríguez, Isabel Martín, Maria Carmen Prado, Carolina Ruíz, Rafael Hortigüela, Mario Alía, Marçal Vilar, Helena Mira, Eva Cano, Mercedes Domínguez, Belén de Andrés, María Luisa Gaspar
Aging has a strong impact on the activity of the immune system, enhancing susceptibility to pathogens and provoking a predominant pre-inflammatory status, whereas dampening responses to vaccines in humans and mice. Here, we demonstrate a loss of marginal zone B lymphocytes (MZ, CD19(+)CD45R(+)CD21(++)CD23(lo)) and a decrease of naive B cells (CD19(+)IgD(+)), whereas there is an enhancement of a CD19(+)CD45R(lo) innate-like B cell population (B1REL) and the so-called aged B cell compartment (ABC, CD45R(+)CD21(lo)CD23(lo)CD5(-)CD11b(-)) in aged senescence-accelerated (SAMP8) mice but not in aged senescence-resistant (SAMR1) mice...
August 17, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28817115/administration-of-follicle-stimulating-hormone-induces-autophagy-via-upregulation-of-hif-1%C3%AE-in-mouse-granulosa-cells
#17
Jilong Zhou, Wang Yao, Chengyu Li, Wangjun Wu, Qifa Li, Honglin Liu
Recent studies reported the important role of autophagy in follicular development. However, the underlying molecular mechanisms remain elusive. In this study, we investigated the effect of follicle-stimulating hormone (FSH) on mouse granulosa cells (MGCs). Results indicated that autophagy was induced by FSH, which is known to be the dominant hormone regulating follicular development and granulosa cell (GC) proliferation. The activation of mammalian target of rapamycin (mTOR), a master regulator of autophagy, was inhibited during the process of MGC autophagy...
August 17, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28816296/-complete-androgen-insensitivity-syndrome-associated-with-vesical-fistula-a-case-report-and-literature-review
#18
K H Hua, L Yang, X W Zhang, W J Bai, Q Li, T Xu
Androgen insensitivity syndrome (AIS) is a very uncommon genetic disorder that results from the resistance of androgen receptor (AR) to androgen, which influences the formation of the male genitalia and in turn presents with female phenotype. Surgical resection of undesceaded testicle and different kinds of genitoplasty are crucial methods to correct the deformity of reproductive system, as well as hormone replacement therapy, which is an essential therapy for postoperational rehabilitation in AIS patients...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28815884/periodontal-ligament-like-tissue-regeneration-with-drilled-porous-decalcified-dentin%C3%A2-matrix-sheet-composite
#19
Ge Feng, Yan Wu, Yu Yong, Lan Huang, Shu An, Bo Hu, Jun Luo, Jinlin Song
OBJECTIVE: In this study, we constructed a composite by combining the human dental follicle cell sheet and a manual drilled porous decalcified dentin matrix that was used to construct ectopic tissue-engineered periodontal ligament-like tissues in renal capsules of nude mice. MATERIALS AND METHODS: Human dental follicle cells were harvested from human lower third molars and then embedded into a temperature-sensitive culture dish. These cells were then placed into frozen porous decalcified dentin matrix sheets and induced by 50 g/ml ascorbic acid...
August 16, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28815175/platelet-rich-plasma-an-elixir-for-treatment-of-alopecia-personal-experience-on-117-patients-with-review-of-literature
#20
REVIEW
Suruchi Garg, Shweta Manchanda
Platelet-rich plasma (PRP) has emerged as a new treatment modality in regenerative plastic surgery and dermatology. PRP is a simple, cost-effective and feasible treatment option with high patient satisfaction for hair loss and can be regarded as a valuable adjuvant treatment modality for androgenic alopecia and other types of non-scarring alopecias. Authors have proposed a hair model termed "Golden anchorage with 'molecular locking' of ectodermal and mesenchymal components for survival and integrity of hair follicle (HF)" in this article...
2017: Stem Cell Investigation
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