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human aging

Akihiko Hasegawa, Tomo Yonezawa, Noboru Taniguchi, Koji Otabe, Yukio Akasaki, Tetsuya Matsukawa, Masahiko Saito, Masashi Neo, Lihua Y Marmorstein, Martin K Lotz
OBJECTIVES: The EFEMP1 gene encoding fibulin-3 is specifically expressed in the superficial zone of articular cartilage. This study examined fibulin-3 expression patterns in joint aging and osteoarthritis (OA) and the role of fibulin-3 in OA pathogenesis. METHODS: Immunohistochemical analysis was performed on normal and OA human and mouse knee cartilage. Experimental OA was induced in wild type and fibulin-3(-/-) mice and OA severity was evaluated by histological scoring...
October 25, 2016: Arthritis & Rheumatology
Elina Seppälä, Saara Sillanpää, Noora Nurminen, Heini Huhtala, Jorma Toppari, Jorma Ilonen, Riitta Veijola, Mikael Knip, Markku Sipilä, Jussi Laranne, Sami Oikarinen, Heikki Hyöty
BACKGROUND: Human enteroviruses (HEVs) and rhinoviruses (HRVs) have been linked to acute otitis media (AOM). OBJECTIVES: The present study evaluates the aforementioned association in a birth cohort setting. STUDY DESIGN: The cohort included 286 healthy infants (191 boys) followed from birth up to the age of 2 years in the Type 1 Diabetes Prediction and Prevention study in Finland. Stool samples were collected monthly and analyzed for the presence of HRV and HEV RNA using RT-PCR...
October 20, 2016: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
Sarah B Maness, Lorraine R Reitzel, Kellie L Watkins, Lorna H McNeill
OBJECTIVES: The purpose of this exploratory study was to improve understanding of the sociodemographic correlates of human papillomavirus (HPV) awareness, knowledge, and vaccination attitudes in a convenience sample of church-going, African-American women and how knowledge about HPV-related cancers relates to vaccination attitudes for girls and boys. METHODS: Participants (N = 308) answered survey questions about HPV awareness, knowledge, and vaccination attitudes...
November 2016: American Journal of Health Behavior
Da-Wun Yang, Ok-Hwa Kang, Young-Seob Lee, Sin-Hee Han, Sang-Won Lee, Seon-Woo Cha, Yun-Soo Seo, Su-Hyun Mun, Ryong Gong, Dong-Won Shin, Dong-Yeul Kwon
Salidroside [2-(4-hydroxyphenyl)ethyl β-D-gluco-pyranoside (SAS)] has been identified as the most potent ingredient of the plant Rhodiola rosea L. Previous studies have demonstrated that it possesses a number of pharmacological properties, including anti-aging, anti-fatigue, antioxidant, anticancer and anti-inflammatory properties. In this study, to ascertain the molecular mechanisms responsible for the anti-inflammatory activity of SAS, we used phorbol-12-myristate-13-acetate (PMA) plus A23187 to induce inflammation in human mast cell line-1 (HMC-1)...
October 18, 2016: International Journal of Molecular Medicine
R E Frye, S Rose, J Chacko, R Wynne, S C Bennuri, J C Slattery, M Tippett, L Delhey, S Melnyk, S G Kahler, D F MacFabe
Propionic acid (PPA) is a ubiquitous short-chain fatty acid, which is a major fermentation product of the enteric microbiome. PPA is a normal intermediate of metabolism and is found in foods, either naturally or as a preservative. PPA and its derivatives have been implicated in both health and disease. Whereas PPA is an energy substrate and has many proposed beneficial effects, it is also associated with human disorders involving mitochondrial dysfunction, including propionic acidemia and autism spectrum disorders (ASDs)...
October 25, 2016: Translational Psychiatry
M Rincón-Cortés, R M Sullivan
Disrupted social behavior is a core symptom of multiple psychiatric and neurodevelopmental disorders. Many of these disorders are exacerbated by adverse infant experiences, including maltreatment and abuse, which negatively affect amygdala development. Although a link between impaired social behavior, abnormal amygdala function and depressive-like behavior following early adversity has been demonstrated in humans and animal models, the developmental emergence of maltreatment-related social deficits and associated amygdala neural activity are unknown...
October 25, 2016: Translational Psychiatry
J S Milligan-Saville, B M Graham
Fear extinction is the laboratory basis of exposure therapy for anxiety disorders. Recent findings have revealed that estradiol is necessary to the consolidation of extinction memories in females. These findings are based on studies conducted using virgin rats and young women whose reproductive history is unknown. We hypothesized that motherhood, which results in extensive endocrinological, neurobiological and behavioral changes, may lead to alterations in fear extinction in females. We used a cross-species translational approach to investigate the impact of reproductive experience on fear extinction and fear relapse in female rats (n=116) and women (n=64)...
October 25, 2016: Translational Psychiatry
Liam F Fitzgerald, Anita D Christie, Jane A Kent
Despite intensive efforts to understand the extent to which skeletal muscle mitochondrial capacity changes in older humans, the answer to this important question remains unclear. To determine what the preponderance of evidence from in vivo studies suggests, we conducted a systematic review and meta-analysis of the effects of age on muscle oxidative capacity as measured noninvasively by magnetic resonance spectroscopy. A secondary aim was to examine potential moderators contributing to differences in results across studies, including muscle group, physical activity status, and sex...
July 18, 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
R N Villar-Quiles, J Porta-Etessam
INTRODUCTION: Neurosyphilis can occur at any time following infection by Treponema pallidum and its incidence has increased over recent years. The epidemiological and clinical pattern has undergone a substantial change in the post-antibiotic era. AIMS: To describe and analyse the population of patients diagnosed with neurosyphilis at a tertiary hospital in Madrid from January to May 2015. PATIENTS AND METHODS: A retrospective analysis of the following data was performed: demographic, clinical, complementary tests -serology, cerebrospinal fluid (CSF), neuroimaging- and progression of 28 patients diagnosed between 2008 and 2015...
November 1, 2016: Revista de Neurologia
Yuh-Cheng Yang, Tzu-Yang Chang, Tze-Chien Chen, Wen-Shan Lin, Shih-Chuan Chang, Yann-Jinn Lee
Human papillomavirus (HPV) infection and the fate of HPV infected cervical epithelial cells are strictly associated with cervical cancer development. P2X7 receptor has been implicated in both the regulation of immune responses and apoptosis of cervical cancer cells. The study aims to investigate if polymorphisms in the P2RX7 gene are associated with the risk of cervical cancer in Taiwanese women. P2RX7 253 T/C, 835 G/A, and 1513 A/C loss-of-function polymorphisms were genotyped in a hospital-based study of 507 women with cervical squamous cell carcinoma (CSCC) and 1619 age-matched healthy control women...
October 13, 2016: Oncotarget
Maren Paulmann, Maja Mockenhaupt
Severe cutaneous adverse reactions (SCAR) are known for a high morbidity and mortality. They may be life-threatening for the affected patient and difficult to accomplish for the patient's family and the treating physician. Such conditions include not only bullous reactions like toxic epidermal necrolysis (TEN) and Stevens-Johnson syndrome (SJS), but also acute generalized exanthematous pustulosis (AGEP) and drug reaction with eosinophilia and systemic symptoms (DRESS). Since clinical pattern, etiology, prognosis and treatment differ among these severe skin reactions, a clear diagnosis based on a comprehensive clinical examination, skin biopsy, and specific laboratory tests is necessary...
September 28, 2016: Current Pharmaceutical Design
Lauren Marie Sparks, Leanne M Redman, Kevin E Conley, Mary-Ellen Harper, Fanchao Yi, Andrew Hodges, Alexey Eroshkin, Sheila R Costford, Meghan E Gabriel, Cherie Shook, Heather H Cornnell, Eric Ravussin, Steven R Smith
CONTEXT: The effects of caloric restriction (CR) on in vivo muscle mitochondrial function in humans are controversial. OBJECTIVE: To evaluate muscle mitochondrial function and associated transcriptional profiles in non-obese humans following 12 months of CR. DESIGN: Individuals from an ancillary study of the CALERIE 2 randomized, controlled trial were assessed at Baseline and 12 months after a 25% CR or ad libitum (Control) diet. SETTING: The study was performed at Pennington Biomedical Research Center in Baton Rouge, Louisiana, USA...
October 25, 2016: Journal of Clinical Endocrinology and Metabolism
Raquel Barbosa-Lorenzo, Alberto Ruano-Ravina, Rebeca Ramis, Nuria Aragonés, Karl T Kelsey, Consuelo Carballeira Roca, Alberto Fernández-Villar, Gonzalo López-Abente, Juan M Barros-Dios
PURPOSE: Radon is a human lung carcinogen but it might be linked with other respiratory diseases. We aimed to assess the relationship between residential radon exposure and COPD (Chronic Obstructive Pulmonary Disease) prevalence and hospital admissions at a municipal level. MATERIALS AND METHODS: We designed an ecological study where we included those municipalities with at least 3 radon measurements. Using mixed Poisson regression models we calculated the relative risk (RR) for COPD for each 100 Bq/m(3) of increase in radon concentration and also the relative risk for COPD using a cutpoint of 50 Bq/m(3)...
October 25, 2016: International Journal of Radiation Biology
Shao-Hua Xie, Jesper Lagergren
The Chinese famine in 1958-1962 was one of the worst in human history, but its potential influence on cancer risks is uncertain. Using cancer incidence data in Shanghai, China, during 1983-2007, we calculated age-specific incidence rates of gastrointestinal cancers in birth cohorts exposed to the Chinese famine in different periods of life and a non-exposed reference cohort. Age-period-cohort regressions estimated the overall relative risks of gastrointestinal cancers in each birth cohort. A total of 212,098 new cases of gastrointestinal cancer were identified during the study period (129,233 males and 82,865 females), among whom 18,146 had esophageal cancer, 71,011 gastric cancer, 55,864 colorectal cancer, 42,751 liver cancer, 9,382 gallbladder cancer, and 14,944 had pancreatic cancer...
October 25, 2016: International Journal of Cancer. Journal International du Cancer
Yalda Nahidi, Naser Tayyebi Meibodi, Kiarash Ghazvini, Habibollah Esmaily, Maryam Esmaeelzadeh
BACKGROUND: Lichen planus is a mucocutaneous papulosquamous itchy disease with unknown etiology. A number of factors such as immune mechanisms, viral agents, and drugs have been implicated in pathogenesis of lichen planus. In recent years, several studies have indicated the role of viral agents in this disease, including human herpesvirus-7 (HHV-7). Studies have given contradictory results, which is why we decided to study the possible association between lichen planus with HHV-7. METHODS: In this case-control study, which was conducted on 60 cutaneous classic lichen planus samples as well as 60 healthy control skin samples after matching the two groups in terms of gender and age, tissue samples of patients and controls were studied by real time polymerase chain reaction to detect for HHV-7...
October 25, 2016: International Journal of Dermatology
Ivy Shiue
Links between environmental chemicals and human health have emerged over the last few decades, but the effects from polyaromatic hydrocarbons were less studied, compared to other commonly known environmental chemicals such as heavy metals, phthalates, arsenic, phenols, pesticides, etc. Therefore, the aim of the study was to examine the relationships of urinary polyaromatic hydrocarbons and adult respiratory health conditions using a large human sample in a national and population-based setting in recent years...
October 24, 2016: Environmental Science and Pollution Research International
Khaled Abass, Markku Koiranen, Darja Mazej, Janja Snoj Tratnik, Milena Horvat, Jukka Hakkola, Marjo-Riitta Järvelin, Arja Rautio
The Northern Finland Birth Cohort program (NFBC) is the epidemiological and longitudinal prospective general population research program, which was established to promote health and wellbeing of the population in northern Finland. The aim of present study, as a part of the NFBC program, was to analyze the blood levels of arsenic (B-As), cadmium (B-Cd), lead (B-Pb), total mercury (B-Hg) and selenium (B-Se); to compare these levels with threshold limits; to study sociodemographic factors; and to correlate these levels with calcium and haemoglobin...
October 24, 2016: Environmental Science and Pollution Research International
Patricia Vieyra-Reyes, Diana Millán-Aldaco, Marcela Palomero-Rivero, Clementina Jiménez-Garcés, Margarita Hernández-González, Javier Caballero-Villarraso
Iron is a trace element and a structural part of antioxidant enzymes, and its requirements vary according to age and gender. We hypothesized that iron deficiency (ID) leads to an increase in free radicals which mainly affect the brain, and the severity of damage would therefore be dependent on age and gender. Two groups of Wistar rats were evaluated evolutionarily: 100 rats (50 males; 50 females) with ID diet and 100 rats (50 males; 50 females) with standard diet. Both groups were offspring from mothers who were previously under the same dietary intervention...
October 24, 2016: Journal of Physiology and Biochemistry
Kristin L Johnson, Meng-Yun Lin, Howard Cabral, Lewis E Kazis, Ingrid T Katz
HPV vaccination coverage is suboptimal. Previous research largely focused on vaccinating girls. This study aimed to identify factors associated with HPV vaccination among male and female adolescents. We conducted secondary analyses using the National Immunization Survey-Teen. We specified parallel logistic models to examine associations of adolescent, caregiver, and provider characteristics with vaccination status among boys and girls. The primary outcome was HPV vaccination status defined as unvaccinated, initiated, or completed...
October 24, 2016: Journal of Community Health
Hermann Fromme, Wolfgang Schober
Waterpipe (WP) smoking, also known as shisha or hookah smoking, is growing in western countries as an alternative to cigarette smoking, especially in younger age groups. A majority of smokers mistakenly believe that shisha smoking is a social entertainment practice that leads to more social behavior and relaxation and that this type of smoking is safe or less harmful and less addictive than cigarette smoking.In reality, WP smokers are exposed to hundreds of toxic substances that include well-known carcinogens...
October 24, 2016: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
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