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Collagen 18

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https://www.readbyqxmd.com/read/29242757/differential-gene-transcription-of-extracellular-matrix-components-in-response-to-in-vivo-corneal-crosslinking-cxl-in-rabbit-corneas
#1
Sabine Kling, Arthur Hammer, Emilio A Torres Netto, Farhad Hafezi
Purpose: We studied changes in gene transcription after corneal crosslinking (CXL) in the rabbit cornea in vivo and identified potential molecular signaling pathways. Methods: A total of 15 corneas of eight male New-Zealand-White rabbits were de-epithelialized and equally divided into five groups. Group 1 served as an untreated control. Groups 2 to 5 were soaked with 0.1% riboflavin for 20 minutes, which in Groups 3 to 5 was followed by UV-A irradiation at a fluence of 5...
December 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/29240273/endothelial-dysfunction-may-promote-keloid-growth
#2
Chikage Noishiki, Gen Takagi, Yoshiaki Kubota, Rei Ogawa
Keloid is a cutaneous fibroproliferative disorder. It results from impaired wound healing that generates persistent inflammation and extensive deposition of collagen fibers in the wound/scar. Keloids tend to be worse in hypertensive patients. The present prospective cross-sectional study assessed whether endothelial dysfunction, which occurs in hypertension, associates with keloid formation and progression. This study included randomly-selected patients with keloids who were assessed for surgical keloid treatment in 2013-2014...
December 14, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/29240203/scar-tissue-formation-following-alveolar-ridge-preservation-a-case-control-study
#3
Stefan Fickl, Frederic Kauffmann, Christian F Stappert, Anke Kauffmann, Ulrich Schlagenhauf
The aim of this retrospective case control study was to compare a porcine collagen matrix (Mucograft Seal, Geistlich) with a free gingival punch graft with respect to size, invagination, and color of resulting soft tissue scar formation. Following definition of inclusion and exclusion criteria, 22 patients were retrospectively included in this study. The patients were divided into two groups. In group A, the extraction socket was filled with bovine bone mineral (Bio-Oss, Geistlich) and covered with a free gingival punch graft...
January 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29233174/sprifermin-rhfgf18-modulates-extracellular-matrix-turnover-in-cartilage-explants-ex-vivo
#4
Ditte Reker, Cecilie F Kjelgaard-Petersen, Anne Sofie Siebuhr, Martin Michaelis, Anne Gigout, Morten A Karsdal, Christoph Ladel, Anne C Bay-Jensen
BACKGROUND: Sprifermin (recombinant human fibroblast growth factor 18) is in clinical development as a potential disease-modifying osteoarthritis drug (DMOAD). In vitro studies have shown that cartilage regenerative properties of sprifermin involve chondrocyte proliferation and extracellular matrix (ECM) production. To gain further insight into the process of sprifermin in the cartilage tissue, this study aimed at investigating the ECM turnover of articular cartilage explants in a longitudinal manner...
December 12, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29231606/-clinical-study-of-medicinal-cake-separated-moxibustion-for-senile-osteoporosis
#5
Yuqing Zeng, Dingyan Bi, Zhan Yi, Jianwei Lu, Fuhua Zhong, Binfeng Jiang
OBJECTIVE: To explore the clinical efficacy and partial mechanism of medicinal-cake-separated moxibustion for senile osteoporosis. METHODS: Sixty cases of senile osteoporosis were randomly divided into an observation group and a control group according to the random digits table, 30 cases in each one. The two groups were both treated with basic treatment of western medicine. The acupoints included four groups:① Dazhui (GV 14), Dazhu (BL 11) and Ganshu (BL 18); ② Zhongwan (CV 12), Danzhong (CV 17) and Zusanli (ST 36); ③ Pishu (BL 20), Shenshu (BL 23) and Mingmen (GV 4); ④ Shenque (CV 8) and Guanyuan (CV 4)...
May 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29230158/significant-improvement-of-clinical-symptoms-bone-lesions-and-bone-turnover-after-long-term-zoledronic-acid-treatment-in-patients-with-a-severe-form-of-camurati-engelmann-disease
#6
Giampiero I Baroncelli, Elena Ferretti, Cecilia M Pini, Benedetta Toschi, Rita Consolini, Silvano Bertelloni
Camurati-Engelmann disease (CED) is an ultrarare autosomal dominant bone dysplasia. Cortical thickening of the diaphyses of the long bones with narrowing of the medullary cavity are associated with bone pain, waddling gait, muscular weakness, easy fatigability, and a marfanoid body habitus. There is no specific treatment for CED. Nonsteroidal anti-inflammatory drugs or glucocorticoids are ineffective in improving bone lesions. A family with a mild to severe form of CED is described. Two patients received long-term bisphosphonate treatment: the 19-year-old female proband was treated with zoledronic acid for 2...
November 2017: Molecular Syndromology
https://www.readbyqxmd.com/read/29225558/vulvar-squamous-cell-carcinoma-aggressiveness-is-associated-with-differential-expression-of-collagen-and-stat1
#7
Emily R Holthoff, Stephanie D Byrum, Samuel G Mackintosh, Thomas Kelly, Alan J Tackett, Charles M Quick, Steven R Post
Background: Vulvar squamous cell carcinoma (vSCC) is a rare but debilitating disease. One vSCC variant comprises tumor cells that grow and expand as a cohesive sheet of cells that "pushes" and compresses the associated lymphoplasmacytic (LPC) stroma. Another vSCC variant features tumor cells that grow in loose association with one another and infiltrate the associated fibromyxoid (FMX) stroma consisting mainly of extracellular matrix. Clinically, infiltrative vSCC with FMX stroma (Inf/FMX) is significantly associated with lymph node metastases and recurrence...
2017: Clinical Proteomics
https://www.readbyqxmd.com/read/29224018/sulforaphane-treatment-of-stress-urinary-incontinence-via-the-nrf2-are-pathway-in-a-rat-model
#8
Xiang Wan, Chong Liu, Yan-Bo Chen, Meng Gu, Zhi-Kang Cai, Qi Chen, Zhong Wang
BACKGROUND/AIMS: To explore the effect of sulforaphane (SFN) treatment in rats through the induction of Stress Urinary Incontinence (SUI) via the Nrf2-ARE pathway. METHODS: A total of 18 female rats (Sprague-Dawley) were assigned to three groups: a control group, an SUI group, and an SUI+SFN group (six rats per group). Rats in the treatment groups were induced via postpartum vaginal balloon dilation and bilateral ovariectomy. Rats in the SUI+SFN group were treated via intraperitoneal injection once per day for a total of one month...
December 8, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29217454/patient-related-barriers-to-rigid-gas-permeable-rgp-lens-wear-among-keratoconus-patients-in-jordan
#9
May M Bakkar, Mera F Haddad, Mohammad Al Qadire
PURPOSE: To assess potential patient-related barriers to rigid gas permeable (RGP) lens wear for vision rehabilitation in a sample of keratoconus (KC) patients in Jordan. METHODS: Barriers for RGP contact lens wear among KC patients were discussed and specified by a focus group which consisted of five optometrists who are involved in contact lens practice. The focus group addressed potential barriers for RGP lens wear from the patient's perspective. The identified barriers were then used to design the final questionnaire used in the study...
December 4, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29210840/conoscere-e-curare-il-cuore-1986-2016-how-the-heart-has-changed
#10
Alessandro Boccanelli
: The demographic transition, with longer life expectancy, is mainly due to prevention and care of atherosclerotic vascular and heart disease. The cardiovascular patient is now much older and often presents with coexisting geriatric syndromes that affect healthcare goals, outcomes, and the process of care. Numerous mechanisms at cellular level are responsible for cardiovascular aging such as replicative senescence, apoptosis, proteins misfolding, and inflammation. Aging-related modifications are increase in left-ventricular mass, increased left atrial size, myocardial collagen deposition, and calcium deposition in valvular structures and the coronary arteries...
November 27, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/29203887/age-dependent-increase-of-oxidative-stress-regulates-microrna-29-family-preserving-cardiac-health
#11
Johanna Heid, Chiara Cencioni, Roberto Ripa, Mario Baumgart, Sandra Atlante, Giuseppina Milano, Alessandro Scopece, Carsten Kuenne, Stefan Guenther, Valerio Azzimato, Antonella Farsetti, Giacomo Rossi, Thomas Braun, Giulio Pompilio, Fabio Martelli, Andreas M Zeiher, Alessandro Cellerino, Carlo Gaetano, Francesco Spallotta
The short-lived turquoise killifish Nothobranchius furzeri (Nfu) is a valid model for aging studies. Here, we investigated its age-associated cardiac function. We observed oxidative stress accumulation and an engagement of microRNAs (miRNAs) in the aging heart. MiRNA-sequencing of 5 week (young), 12-21 week (adult) and 28-40 week (old) Nfu hearts revealed 23 up-regulated and 18 down-regulated miRNAs with age. MiR-29 family turned out as one of the most up-regulated miRNAs during aging. MiR-29 family increase induces a decrease of known targets like collagens and DNA methyl transferases (DNMTs) paralleled by 5´methyl-cytosine (5mC) level decrease...
December 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29203183/the-il-1-family-of-cytokines-do-they-have-a-role-in-scleroderma-fibrosis
#12
REVIEW
Carol M Artlett
Systemic sclerosis is a profibrotic autoimmune disease mediated by the dysregulation in collagen synthesis, leading to the increased deposition of collagens, primarily type I and III, and the deposition of other extracellular matrix proteins in the skin and internal organs, in a mechanism that is thought to be an over active wound healing process. These patients experience significant morbidity and the mortality rate in this disease is high. Indeed, scleroderma is the most deadly of diseases in the autoimmune spectrum...
December 1, 2017: Immunology Letters
https://www.readbyqxmd.com/read/29202990/biological-reconstruction-of-large-osteochondral-lesions-of-the-talar-dome-with-a-modified-sandwich-technique-midterm-results
#13
Boguslaw Sadlik, Lukasz Kolodziej, Adrian Blasiak, Mateusz Szymczak, Bartłomiej Warchal
BACKGROUND: Surgical treatment for large osteochondral lesions of the talar dome (OLTD) must restore the convexity and curvature of the talus. Here, we present midterm results and describe the modified "sandwich" reconstruction procedure. Bone defects were restored using a biological inlay consists of autologous bone chips that were mixed with bone marrow concentrate and fibrin glue and covered with a xenogeneic collagen membrane infiltrated with bone marrow concentrate and stabilized by fibrin glue...
December 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29201190/pigment-epithelium-derived-factor-short-peptides-facilitate-full-thickness-cutaneous-wound-healing-by-promoting-epithelial-basal-cell-and-hair-follicle-stem-cell-proliferation
#14
Shawn H Tsai, Li-Pen Tsao, Shih-Hsin Chang, Tsung-Chuan Ho, Kwang-Yi Tung, Ai-Ching Wu, Yeou-Ping Tsao
A previous study by our group showed that a 44-amino-acid fragment of pigment epithelium-derived factor (PEDF) facilitated corneal epithelial wound healing. In the present study this fragment was shortened to obtain peptides of 18, 20 and 29 amino acids in length, and their promoting effects on the healing of full-thickness skin wounds were assessed. Peptides were delivered periodically by topical application to punch wounds of mice. The wound healing speed was evaluated by measuring the reduction of wound areas at 4 and 7 days after injury...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29196963/serum-lipid-and-bone-metabolism-effects-of-toremifene-vs-letrozole-as-adjuvant-therapy-for-postmenopausal-early-breast-cancer-patients-results-of-a-multicenter-open-randomized-study
#15
Tadahiko Shien, Hiroyoshi Doihara, Nobuaki Sato, Keisei Anan, Kansei Komaki, Keisuke Miyauchi, Yasuhiro Yanagita, Tomomi Fujisawa, Shoshu Mitsuyama, Chizuko Kanbayashi, Mikihiro Kusama, Morihiko Kimura, Hiromitsu Jinno, Muneaki Sano, Tadashi Ikeda
A prospective randomized phase II trial was conducted to evaluate the time course effects of toremifene (TOR) and letrozole (LET), as adjuvant hormone therapy, on serum lipid profiles and bone metabolism in estrogen receptor (ER)-positive, postmenopausal breast cancer patients.Fifty-four postmenopausal breast cancer patients [ER positive, HER2 negative, T1-2, node metastases (n = 0-3), M0] who had undergone curative resection were enrolled. They were randomized to receive either TOR 40 mg/day or LET 2...
December 1, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29191507/viscoelastic-properties-of-human-pancreatic-tumors-and-in-vitro-constructs-to-mimic-mechanical-properties
#16
Andres Rubiano, Daniel Delitto, Song Han, Michael Gerber, Carly Galitz, Jose Trevino, Ryan M Thomas, Steven J Hughes, Chelsey S Simmons
Pancreatic ductal adenocarcinoma (PDAC) is almost universally fatal, in large part due to a protective fibrotic barrier generated by tumor-associated stromal (TAS) cells. This barrier is thought to promote cancer cell survival and confounds attempts to develop effective therapies. We present a 3D in vitro system that replicates the mechanical properties of the PDAC microenvironment, representing an invaluable tool for understanding the biology of the disease. Mesoscale indentation quantified viscoelastic metrics of resected malignant tumors, inflamed chronic pancreatitis regions, and histologically normal tissue...
November 27, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29182665/the-role-of-protease-inhibitors-on-the-remineralization-of-demineralized-dentin-using-the-pilp-method
#17
Hamid Nurrohman, Karina M M Carneiro, John Hellgeth, Kuniko Saeki, Sally J Marshall, Grayson W Marshall, Stefan Habelitz
Mineralized and sound dentin matrices contain inactive preforms of proteolytic enzymes that may be activated during the demineralization cycle. In this study, we tested the hypothesis that protease inhibitors (PI) preserve demineralized collagen fibrils and other constituents of the dentin matrix and thereby affect the potential for remineralization. Artificial carious lesions with lesion depths of 140 μm were created with acetate buffer (pH = 5.0, 66 hours), and remineralized using a polymer-induced-liquid-precursor (PILP) process (pH = 7...
2017: PloS One
https://www.readbyqxmd.com/read/29180195/sutures-versus-new-cyanoacrylates-in-prosthetic-abdominal-wall-repair-a-preclinical-long-term-study
#18
Gemma Pascual, Marta Rodríguez, Claudia Mesa-Ciller, Bárbara Pérez-Köhler, Mar Fernández-Gutiérrez, Julio San Román, Juan M Bellón
BACKGROUND: As an alternative to sutures, meshes used for hernia repair can be fixed using cyanoacrylate-based adhesives. Attempts to improve these adhesives include alkyl-chain lengthening to reduce their toxicity. This preclinical study compares the long-term behavior of cyanoacrylates of different chain lengths already used in hernia repair and new ones for this application. MATERIALS AND METHODS: Partial abdominal wall defects were repaired using a Surgipro mesh in 18 New Zealand White rabbits, and groups were established according to the mesh fixation method: sutures (control), Glubran 2 (n-butyl), Ifabond (n-hexyl), and the new adhesives SafetySeal (n-butyl), and Evobond (n-octyl)...
December 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/29164001/paradoxical-elevation-of-serum-tracp5b-levels-despite-increase-in-lumbar-spine-bone-mineral-density-during-anti-tnf%C3%AE-therapy-in-patients-with-inflammatory-rheumatic-disease-a-2-year-prospective-assessment-of-bone-mass-bone-metabolism-and-the-trabecular-bone
#19
Éric Toussirot, Laurent Mourot, Barbara Dehecq, Fabrice Michel, Daniel Wendling, Émilie Grandclément, Gilles Dumoulin
Objective: To examine the impact of long-term anti-TNFα therapy on bone mass, bone metabolism, and the trabecular bone score (TBS) in patients with rheumatoid arthritis (RA) or ankylosing spondylitis (AS). Material and Methods: In eight patients with RA and 12 with AS, bone mineral densities (BMDs) of the lumbar spine (LS), left and right femoral neck, and total skeleton were measured using dual X-ray absorptiometry at baseline and then at 6, 12, and 24 months after anti TNFα therapy...
September 2017: European Journal of Rheumatology
https://www.readbyqxmd.com/read/29156973/cartilage-defect-treatment-using-high-density-autologous-chondrocyte-implantation-two-year-follow-up
#20
Juan Manuel Lopez-Alcorocho, Lucia Aboli, Isabel Guillen-Vicente, Elena Rodriguez-Iñigo, Marta Guillen-Vicente, Tomás F Fernández-Jaén, Santiago Arauz, Steve Abelow, Pedro Guillen-García
OBJECTIVE: The aim of this work was to study the short- and mid-term effectiveness and safety of high-density autologous chondrocyte implantation (HD-ACI) in the first 50 patients with knee cartilage damage treated in our unit. DESIGN: Fifty consecutive patients with cartilage lesions (Outerbridge grade III-IV) in the knee treated with HD-ACI were included in this study. Chondrocytes were isolated from a nonbearing cartilage area biopsy and were cultured until 40 to 50 million cells were obtained...
January 1, 2017: Cartilage
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