scholarly journals Knee Fat Pad Volumes in Patients with Hemophilia and Their Relationship with Osteoarthritis

Arthritis ◽  
2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Annette von Drygalski ◽  
Katherine C. Rappazzo ◽  
Richard F. W. Barnes ◽  
Eric Y. Chang

Hemophilic arthropathy is a progressive, disabling condition with poorly understood pathobiology. Since there is an emerging interest to study the role of intra-articular fat pad size and biology in arthritic conditions, we explored fat pad volume changes in hemophilic arthropathy and to what extent they differed from osteoarthritis. We matched a cohort of 13 adult patients with hemophilic arthropathy of the knee with age- and gender-matched cohorts without osteoarthritis (“control cohort”) and with the same degree of radiographic osteoarthritis (“OA cohort”) in 1 : 2 fashion. Infrapatellar fat pad (IPFP) and suprapatellar fat pad (SPFP) volumes were calculated based on magnetic resonance imaging and differences in fat pad volumes, demographics, height, weight, and osteoarthritis scores were evaluated. Fat pad volumes were positively associated with body size parameters in all three cohorts but were unaffected by the degree of osteoarthritis. While IPFP volumes did not differ between cohorts, SPFP volumes expanded disproportionally with weight in hemophilia patients. Our observations indicate that IPFPs and SPFPs behave biologically differently in response to different arthritic stimuli. The exaggerated expansion of the SPFP in hemophilia patients highlights the importance of further studying the implications of fat pad biology for progression of hemophilic arthropathy.

2000 ◽  
Author(s):  
Erika Felix ◽  
Anjali T. Naik-Polan ◽  
Christine Sloss ◽  
Lashaunda Poindexter ◽  
Karen S. Budd

Author(s):  
Émilie Perez

The role of children in Merovingian society has long been downplayed, and the study of their graves and bones has long been neglected. However, during the past fifteen years, archaeologists have shown growing interest in the place of children in Merovingian society. Nonetheless, this research has not been without challenges linked to the nature of the biological and material remains. Recent analysis of 315 children’s graves from four Merovingian cemeteries in northern Gaul (sixth to seventh centuries) allows us to understand the modalities of burial ritual for children. A new method for classifying children into social age groups shows that the type, quality, quantity, and diversity of grave goods were directly correlated with the age of the deceased. They increased from the age of eight and particularly around the time of puberty. This study discusses the role of age and gender in the construction and expression of social identity during childhood in the Merovingian period.


2019 ◽  
Vol 63 (4) ◽  
pp. 689-712
Author(s):  
K. Rothermich ◽  
O. Caivano ◽  
L.J. Knoll ◽  
V. Talwar

Interpreting other people’s intentions during communication represents a remarkable challenge for children. Although many studies have examined children’s understanding of, for example, sarcasm, less is known about their interpretation. Using realistic audiovisual scenes, we invited 124 children between 8 and 12 years old to watch video clips of young adults using different speaker intentions. After watching each video clip, children answered questions about the characters and their beliefs, and the perceived friendliness of the speaker. Children’s responses reveal age and gender differences in the ability to interpret speaker belief and social intentions, especially for scenarios conveying teasing and prosocial lies. We found that the ability to infer speaker belief of prosocial lies and to interpret social intentions increases with age. Our results suggest that children at the age of 8 years already show adult-like abilities to understand literal statements, whereas the ability to infer specific social intentions, such as teasing and prosocial lies, is still developing between the age of 8 and 12 years. Moreover, girls performed better in classifying prosocial lies and sarcasm as insincere than boys. The outcomes expand our understanding of how children observe speaker intentions and suggest further research into the development of teasing and prosocial lie interpretation.


2021 ◽  
Vol 91 (4) ◽  
pp. 359-378
Author(s):  
Yanad Abou Monsef ◽  
◽  
Osman Kutsal

The objective of this study was to investigate pathological disorders of the hepatobiliary system in dogs and cats in Ankara using pathomorphological methods, and to determine the types and frequency of the observed lesions. Furthermore, we aimed to evaluate hepatic reparation as a reaction of the liver to injury with different hepatobiliary lesions using immunohistochemical methods. Livers obtained from 56 cats and 74 dogs submitted for post-mortem investigation were examined macroscopically and microscopically. Samples with hepatic fibrosis were stained immunohistochemically with an α-SMA antibody. Lesions were found in 98% of the livers of the examined dogs and cats. The most common histopathological diagnoses were hepatitis (39.28%), hepatocellular lipidosis (16.07%), and cholangitis/cholangiohepatitis (14.28%) in cats. In dogs they were hepatitis (28.38%), passive congestion (25.68%) and proliferative lesions (21.62%). For some hepatobiliary lesions, breed, age and gender predispositions were observed. Immunohistochemically, the α-SMA antibody positively stained parenchymal, portal and septal myofibroblasts. A positive correlation was verified between immunohistochemical α-SMA scores and histochemical fibrosis scores. This is the first study in Turkey documenting both the incidence of hepatobiliary lesions among feline and canine species, and their pathomorphological features. In terms of reparation, the major role of the hepatic myofibroblasts in liver fibrosis was observed. There were variations in the intensity and location of positively stained cells according to the type of lesion. The conclusion of this research indicates the need to pay attention to certain hepatic lesions in dogs and cats, and provides a reference standard for further clinical and histopathological studies.


2009 ◽  
Vol 2 ◽  
pp. CMAMD.S1180 ◽  
Author(s):  
Leah C. Tanton ◽  
Thomas A. Cappaert ◽  
Paul M. Gordon ◽  
Robert F. Zoeller ◽  
Theodore J. Angelopoulos ◽  
...  

Purpose To assess strength, size, and muscle quality differences between younger and older males and females in response to training. Methods The bicep and tricep of the non-dominant arm were trained for twelve weeks in younger and older males and females (n = 41). The bicep of both arms were assessed pre and post for muscle strength using one-repetition maximum (1 RM) testing, and size using magnetic resonance imaging (MRI). Results Strength (p < 0.05), mCSA (p < 0.05), and 1 RM MQ (p < 0.00) increased in response to training in all subjects regardless of age or gender. Younger and older subjects had similar increases in strength (45.49 ± 15.30% vs. 42.67 ± 26.67% respectively), mCSA (16.22 ± 7.98% vs. 19.17 ± 6.19% respectively), and 1RM MQ (25.73 ± 15.76 vs. 19.67 ± 20.66 respectively). Women increased their strength (55.59 ± 19.45% vs. 32.87 ± 15.66% p < 0.00 respectively), size (20.36 ± 6.29% vs. 14.72 ± 7.28% p < 0.02 respectively), and 1 RM MQ (29.74 ± 18.33% vs. 16.30 ± 15.59% p <.02) more than men. In comparing age and gender, younger females increased their strength more than older males (56.42 ± 12.92% vs. 29.17 ± 21.8% p <.02 respectively). Older females also increased their strength more than older males (54.68 ± 25.73 vs. 29.17 ± 21.80% respectively). Younger females increased their 1 RM MQ more than older males (.18 ± .08 kg/cm vs. .06 ± .08 kg/cm p <.02 respectively). Conclusion Strength and mCSA increases similarly in older and younger subjects. However, the overall strength and quality of the muscle seems to improve more in women than in men.


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