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Melasma

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581. Pigmentation and Pregnancy: Knowing What Is Normal. (Abstract)

changes include melasma, pigmentary demarcation lines, secondary areola, and linea nigra as well as other less common findings. It is important for physicians to recognize these changes as physiologic to provide adequate reassurance to their patients and avoid unnecessary stress.

2016 Obstetrics and Gynecology

582. Rapid and continued T cell differentiation into long-term effector and memory stem cells in vaccinated melanoma patients. Full Text available with Trip Pro

Rapid and continued T cell differentiation into long-term effector and memory stem cells in vaccinated melanoma patients. Purpose: Patients with cancer benefit increasingly from T-cell-based therapies, such as adoptive T-cell transfer, checkpoint blockade, or vaccination. We have previously shown that serial vaccinations with Melan-AMART-126-35 peptide, CpG-B, and incomplete Freund adjuvant (IFA) generated robust tumor-specific CD8 T-cell responses in patients with melanoma. Here, we describe (...) the detailed kinetics of early- and long-term establishment of T-cell frequency, differentiation (into memory and effector cells), polyfunctionality, and clonotype repertoire induced by vaccination.Experimental Design: Twenty-nine patients with melanoma were treated with multiple monthly subcutaneous vaccinations consisting of CpG-B, and either the native/EAA (n = 13) or the analogue/ELA (n = 16) Melan-AMART-126-35 peptide emulsified in IFA. Phenotypes and functionality of circulating Melan-A-specific CD8

2016 Clinical Cancer Research

583. The depigmenting effect of natural resorcinol type polyphenols Kuwanon O and Sanggenon T from the roots of morus australis. (Abstract)

. australis in different melanocyte systems and artificial skin models.The depigmenting effect of resorcinol type polyphenols (RTPs) from the root extract of M. australis was evaluated in murine b16 and melan-a cell lines using a combined sulforhodamine B assay. Tyrosinase activity and the expression of melanogenesis proteins were evaluated for the mechanism study. The artificial skin model is used as a replacement of the animal test.Only Kuwanon O and Sanggenon T were found to have significant (...) depigmenting effects in both murine b16 and melan-a cell lines. Their depigmenting mechanisms are slightly different in the two cell systems. In b16 cells, Kuwanon O and Sanggenon T, together with the other two RTPs, induced post-transcriptional degradations of MITF without suppressing its mRNA expression, leading to significant decreases of TRP-1 and TRP-2 production. While in melan-a cells, the levels of tyrosinase families were suppressed via MITF downregulation at both transcription and translation

2016 Journal of Ethnopharmacology

584. Ectopic adrenocortical carcinoma located in the ovary. Full Text available with Trip Pro

<10pg/mL (n=20-46)) with estradiol and testosterone overproduction.Abdomen CT scan revealed a 14cm right ovarian mass and small adrenal glands. Surgical exploration found the ovarian tumor with hemoperitoneum and enlarged lymph nodes. Histological study confirmed adrenocortical tumor located in the ovary with a Weiss score >5, associated with peritoneal and lymph node metastases. Immunohistochemical staining was positive for inhibin-α, melan-A, and SF1, demonstrating tissue of adrenal origin. After

2016 European Journal of Endocrinology

585. Microneedling: A Comprehensive Review. (Abstract)

subjects and its applications in dermatology.A search was performed using PubMed/MEDLINE and Science Direct databases. Search terms included "microneedling," "needling," and "percutaneous collagen induction." All available studies involving human subjects were included in the discussion, with priority given to prospective, randomized trials.Studies demonstrate microneedling efficacy and safety for the treatment of scars, acne, melasma, photodamage, skin rejuvenation, hyperhidrosis and alopecia

2016 Dermatologic Surgery

586. Unusual focal keratin expression in plexiform angiomyxoid myofibroblastic tumor: A case report and review of the literature. Full Text available with Trip Pro

man presenting with a syncopal episode, regurgitation and epigastric discomfort, bearing a gastric antral myxoid plexiform tumor positive for α-smooth muscle actin, vimentin and, partially, for caldesmon, desmin, and CD10; CD117, DOG1, CD34, S100, CAM5.2, CK20, CK7, EMA, p53, CDX2, chromogranin A, synaptophysin, anaplastic lymphoma kinase, Melan-A, and HMB-45 were all negative. All these features are typical of PAMT. Of note, focal positivity for AE1/AE3 and pan-CK KL1 was also present.The finding

2016 Medicine

587. Single dose denileukin diftitox does not enhance vaccine-induced T cell responses or effectively deplete Tregs in advanced melanoma: immune monitoring and clinical results of a randomized phase II trial. Full Text available with Trip Pro

and some clinical responses.To investigate the immunologic effects of denileukin difitox on vaccine-specific immune responses in melanoma, a randomized clinical trial of single dose denileukin diftitox prior to vaccination versus vaccination alone in subjects with HLA-A2(+) metastatic melanoma was performed. Treatment included randomization to a 4-peptide vaccine (Melan-A, gp100, MAGE3 and NA17 with GM-CSF emulsified in Montanide) alone or after single dose of denileukin diftitox (18 mcg/kg). Vaccine

2016 Journal for immunotherapy of cancer Controlled trial quality: uncertain

588. Dermoscopic and Immunohistochemical Changes in Acquired Melanocytic Nevi following Narrow-Band Ultraviolet B Therapy. Full Text available with Trip Pro

nevi were selected. One nevus was surgically removed from each patient prior to sessions as control; for the other nevus, dermoscopic images were captured before and after NB-UVB sessions. The images were evaluated for changes. At the end, another nevus was surgically removed for immunohistochemical assessment of Ki-67 and melan-A.Our study showed a statistically significant increase in the size of AMN following NB-UVB radiation. Benign dermoscopic changes were observed. Statistically significant

2016 Dermatology

589. Fibronectin-Containing Extracellular Vesicles Protect Melanocytes Against Ultraviolet Radiation-Induced Cytotoxicity. Full Text available with Trip Pro

that extracellular vesicles enriched in fibronectin were involved in melanocyte survival after UVB radiation. Furthermore, we observed that in the hyperpigmented lesions of patients with melasma, the extracellular space around melanocytes contained more fibronectin compared with normal skin, suggesting that fibronectin is involved in maintaining melanocytes in pathological conditions. Collectively, our findings suggest that melanocytes secrete fibronectin-containing extracellular vesicles to increase

2016 Journal of Investigative Dermatology

590. Cell wall changes in AmB-resistant strains from Candida tropicalis and relationship with the immune responses elicited by the host. Full Text available with Trip Pro

susceptibility to Congo red. Moreover, mitogen-activated protein kinases (MAPKs) involved in cell integrity were already activated during regular growth in these strains. Finally, we investigated the response elicited by human blood cells and found that AmB-resistant strains induced a stronger proinflammatory response than susceptible strains. In agreement, AmB-resistant strains also induced stronger melanization ofGalleria mellonellalarvae, indicating that the effect of alterations of the cell wall

2016 Antimicrobial Agents and Chemotherapy

591. HMB-45 negative angiomyolipoma of the orbit: a case report and review of the literature. Full Text available with Trip Pro

-45 /or Melan-A). We report the first case of primary orbital angiomyolipoma with negative melanocytic marker.An 80-year-old Asian woman had a 2-year history of progressive swelling in the left upper eyelid. External examination revealed 3 cm of relative proptosis of the left eye and a palpable mass in the left superonasal orbit. Computed tomographic scan demonstrated a circumscribed, heterogeneous orbital mass. Excision biopsy was done and the histological finding demonstrated the orbital mass (...) was composed of mature adipocytes, intermingled with spindle or oval-shaped cells, and accompanied by thick-walled blood vessels. Immunohistochemically, tumor cells were positive for CD34 and HHF-35, but negative for cytokeratin, HMB-45 and Melan-A. The diagnosis of angiomyolipoma was made. No recurrence was noted at 2-year follow-up.In our case, the HMB-45 negativity may be explained by the rarity of the epithelioid cells, and the HMB-45 positivity is often weaker or absent in spindle cells

2016 BMC Ophthalmology

592. Epithelioid Schwannomas: An Analysis of 58 Cases Including Atypical Variants. (Abstract)

). Mitotic rate ranged from 0 to 9 mitoses/10 high-power field (HPF) (2.37 mm) in the most active areas (mean, 2 to 3 mitoses/10 HPFs). Thirteen cases (22%) were "atypical," defined by a high mitotic rate (≥3 mitoses per 10 HPFs) and nuclear size variation (≥3:1). All (56/56) expressed S100 protein; type IV collagen invested groups or individual cells (16/17). Melanoma markers were negative, except for melan A (1 case). Follow-up in 39 patients (median, 78 mo; range, 6 to 174 mo) indicated that 31 (79

2016 American Journal of Surgical Pathology

593. Comparative analysis of the integument transcriptomes of the black dilute mutant and the wild-type silkworm Bombyx mori Full Text available with Trip Pro

of the epidermis and its pigmentation patterns are not fully understood. Among Lepidoptera, the silkworm is a favorable model for color pattern research. The black dilute (bd) mutant of silkworm is the result of a spontaneous mutation; the larval body color is notably melanized. We performed integument transcriptome sequencing of the wild-type strain Dazao and the mutant strains +/bd and bd/bd. In these experiments, during an early stage of the fourth molt, a stage at which approximately 51% of genes were (...) expressed genome wide (RPKM ≥1) in each strain. A total of 254 novel transcripts were characterized using Cuffcompare and BLAST analyses. Comparison of the transcriptome data revealed 28 differentially expressed genes (DEGs) that may contribute to bd larval melanism, including 15 cuticular protein genes that were remarkably highly expressed in the bd/bd mutant. We suggest that these significantly up-regulated cuticular proteins may promote melanism in silkworm larvae.

2016 Scientific reports

594. Pheochromocytoma in Old World Primates (Macaca mulatta and Chlorocebus aethiops) Full Text available with Trip Pro

involved the right adrenal gland and 2 involved the left. Diagnosis was established by characteristic histologic features. Immunohistochemically, neoplastic cells in all cases expressed chromogranin A and met-enkephalin and were negative for melan-A and inhibin. Six of 7 tumors were positive for β-endorphin. Pulmonary metastases were present in 2 rhesus macaques and portal vein invasion in 1 African green monkey. To the authors' knowledge, this is the first report of malignant pheochromocytoma in Old

2016 Veterinary pathology

595. A critical role for the Drosophila dopamine D1-like receptor Dop1R2 at the onset of metamorphosis Full Text available with Trip Pro

such a role in Drosophila development continues to expand.By using RNAi transgene-induced gene silencing coupled to spatio/temporal assessment, we have unraveled an important role for the Drosophila dopamine 1-like receptor, Dop1R2, in development. We show that Dop1R2 knockdown leads to pre-adult lethality. In adults that escape death, abnormal wing expansion and/or melanization defects occur. Furthermore we show that salivary gland expression of this GPCR during the late larval/prepupal stage

2016 BMC developmental biology

596. Perivascular Epithelioid Cell Tumor of the Uterus with Ovarian Involvement: A Case Report and Review of the Literature Full Text available with Trip Pro

positive (diffuse); HMB-45 positive (focal); and Melan-A, AE1/AE3, CD10, and S100 negative by immunohistochemistry.Distinguishing among mesenchymal neoplasms, including PEComas, endometrial stromal sarcomas, and leiomyosarcomas, can be difficult. Careful analysis of morphologic and immunohistochemical features is of the utmost importance. Differential diagnosis, including morphologic features and immunohistochemical patterns, is also discussed.

2016 The American journal of case reports

597. Tiny Bird, Huge Mystery—The Possibly Extinct Hooded Seedeater (Sporophila melanops) Is a Capuchino with a Melanistic Cap Full Text available with Trip Pro

plumage and showing melanism on the cap feathers. Alternatively, it may be a melanistic-capped individual of a local population of seedeaters known to breed in the Esteros del Iberá, Corrientes, Argentina, to which the name S. ruficollis might be applicable, whilst the name S. plumbeiceps might be available for what is currently known as S. ruficollis. A hybrid origin for S. melanops cannot be ruled out from the available data, but seems unlikely. The purported female specimen of S. melanops pertains

2016 PloS one

598. Inhibitory effects of ginsenosides on basic fibroblast growth factor-induced melanocyte proliferation Full Text available with Trip Pro

the inhibitory effects of Korean Red Ginseng and ginsenosides from Panax ginseng on bFGF-induced proliferation of melan-a melanocytes.When melan-a melanocytes were treated with UV-B-irradiated SP-1 keratinocytes media, cell proliferation increased. This increased proliferation of melanocytes decreased with a neutralizing anti-bFGF antibody. To elucidate the effects of ginsenosides on melanocyte proliferation induced by bFGF, we tested 15 types of ginsenoside compounds. Among them, Rh3, Rh1, F1, and CK (...) demonstrated antiproliferative effects on bFGF-induced melanocyte proliferation after 72 h of treatment. bFGF stimulated cell proliferation via extracellular signal-regulated kinase (ERK) activation in various cell types. Western blot analysis found bFGF-induced ERK phosphorylation in melan-a. Treatment with Rh3 inhibited bFGF-induced maximum ERK phosphorylation and F1-delayed maximum ERK phosphorylation, whereas Rh1 and CK had no detectable effects. In addition, cotreatment with Rh3 and F1 significantly

2016 Journal of Ginseng Research

599. Periorbital Hyperpigmentation: A Comprehensive Review Full Text available with Trip Pro

, periorbital edema, excessive vascularity, shadowing due to skin laxity and tear trough associated with aging. There are a number of treatment options available for periorbital hyperpigmentation. Among the available alternatives to treat dark circles are topical depigmenting agents, such as hydroquinone, kojic acid, azelaic acid, and topical retinoic acid, and physical therapies, such as chemical peels, surgical corrections, and laser therapy, most of which are tried scientifically for melasma, another

2016 The Journal of clinical and aesthetic dermatology

600. Late prostatic metastasis of an uveal melanoma in a miniature Schnauzer dog Full Text available with Trip Pro

Late prostatic metastasis of an uveal melanoma in a miniature Schnauzer dog This manuscript describes a previously unreported clinical case of canine uveal melanoma in a miniature Schnauzer dog with an unusual location of metastasis (prostate) and delayed occurrence (3 years after primary tumor diagnosis and enucleation). Immunohistochemical labeling of both tumors with Melan A, Ki-67, and c-kit added some valuable information.

2016 Clinical Case Reports

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