An Exploratory Study to Assess the Knowledge & Attitude of Parents Regarding Play Needs of Children (under 5 years of age) in Selected Hospital of Durg (C.G.)

Background-The human life has a distinct sphere– the world of play makes childhood more meaningful, happy & motivate the child to learn, develop & mature. Parents, teachers, nurses, psychologists are becoming increasingly aware of the importance of play and its influence upon bringing of children. The study was designed to assess the knowledge and attitude of parents regarding play needs of children. Materials & Methods- 100 couples were selected using purposive sampling technique. A structured questionnaire was prepared for assessing the knowledge & attitude of parents regarding play needs of children (under 5 years of age). Results- 20% of them had moderately adequate knowledge whereas 22% had moderately adequate attitude with. Knowledge & attitude of parents correlated. There is no significant association between socio demographic variables and knowledge except gender, religion, and mass media exposure, type of family, and monthly income and number of children as demographic variables. There is no significant association between socio demographic variables and attitude except gender, religion, qualification, type of family, and number of children as demographic variables. Conclusion-This study was conducted in Govt. Hospital of Durg (Chattisgarh) with the parents having children under 5 years of age. The findings of the study recommended the further interventional approaches regarding play needs of children. Parents need to be educated about meaning and importance of play for child. It creates awareness play know, attitudes, play needs, under five.

Vascular Calcification in Chronic Kidney Disease

Cardiovascular disease (CVD) is the major cause of death in chronic kidney disease (CKD). Of the various risk factors, vascular calcification has only recently come into prominence. CKD is associated with an increased risk of vascular calcification. In routine practice, clinicians usually overlook this finding. Screening for vascular calcification is often missed during first contact with nephrologists. With this article, we would like to reiterate the importance of preventing vascular calcification in early stages of CKD and once it starts appearing, its progression needs to be halted early with individualized treatment. The prevalence, sites of involvement, detection, quantification, pathogenesis, risk factors, clinical manifestations and management options have been discussed.

Effect of PKM2 on Osteogenic and Adipogenic Differentiation of Bone Marrow Mesenchymal Stem Cells in Myeloma Bone Disease / 中国实验血液学杂志

OBJECTIVE@#To investigate the expression of pyruvate kinase M2 (PKM2) in bone marrow mesenchymal stem cells (BMSCs) in myeloma bone disease (MBD) and its effect on osteogenic and adipogenic differentiation of BMSCs.@*METHODS@#BMSCs were isolated from bone marrow of five patients with multiple myeloma (MM) (MM group) and five with iron deficiency anemia (control group) for culture and identification. The expression of PKM2 protein were compared between the two groups. The differences between osteogenic and adipogenic differentiation of BMSCs were assessed by using alkaline phosphatase (ALP) and oil red O staining, and detecting marker genes of osteogenesis and adipogenesis. The effect of MM cell line (RPMI-8226) and BMSCs co-culture on the expression of PKM2 was explored. Functional analysis was performed to investigate the correlations of PKM2 expression of MM-derived BMSCs with osteogenic and adipogenic differentiation by employing PKM2 activator and inhibitor. The role of orlistat was explored in regulating PKM2 expression, osteogenic and adipogenic differentiation of MM-derived BMSCs.@*RESULTS@#Compared with control, MM-originated BMSCs possessed the ability of increased adipogenic and decreased osteogenic differentiation, and higher level of PKM2 protein. Co-culture of MM cells with BMSCs markedly up-regulated the expression of PKM2 of BMSCs. Up-regulation of PKM2 expression could promote adipogenic differentiation and inhibit osteogenic differentiation of MM-derived BMSCs, while down-regulation of PKM2 showed opposite effect. Orlistat significantly promoted osteogenic differentiation in MM-derived BMSCs via inhibiting the expression of PKM2.@*CONCLUSION@#The overexpression of PKM2 can induce the inhibition of osteogenic differentiation of BMSCs in MBD. Orlistat can promote the osteogenic differentiation of BMSCs via inhibiting the expression of PKM2, indicating a potential novel agent of anti-MBD therapy.

Cambios en el metabolismo óseo y mineral en pacientes con Enfermedad Renal Crónica sometidos a trasplante renal en el Hospital General Plaza de la Salud durante el período comprendido entre enero 2010­agosto 2018 / Changes in bone and mineral metabolism in patients with chronic kidney disease undergoing kidney transplantation at Plaza de la Salud General Hospital during the period between January 2010­August 2018

Introducción: las alteraciones del metabolismo óseo-mineral, son una causa importante de morbilidad en los pacientes con trasplante renal, por lo que el manejo de las complicaciones del paciente trasplantado, a largo plazo, deben de ser seguidas. El estudio intenta demostrar cambios en el metabolismo óseo y mineral en pacientes con enfermedad renal crónica sometidos a trasplante renal en el Hospital General Plaza de la Salud durante el período comprendido entre enero 2010 ­ agosto 2018, Santo Domingo, República Dominicana. Método: estudio observacional, descriptivo, retrospectivo y transversal de 131 trasplantes realizados en el Hospital General Plaza de la Salud, evaluando cambios de calcio (Ca), fósforo (P) y hormona paratiroidea (PTH) antes y tres meses post-trasplante. Resultados: la edad media de los pacientes incluidos fue 43.1 ±13.1 años, 72.51 % pertenecía al sexo masculino, con un tiempo medio en hemodiálisis en meses de 27.0 ± 33.6, 60 % de los trasplantes realizados fueron de donante vivo y un 63 % de los pacientes tenía HTA como comorbilidad. El nivel medio de PTH disminuyó en los primeros 3 meses posteriores al trasplante comparado con el pre-trasplante (779.6 ± 1004.0 vs. 167.9 ± 138.2 pg/ml). El fosfato disminuyó significativamente (4.9 ± 1.6 vs. 3.5 ± 0.8) y el calcio aumentó (9.0 ± 1.2 mg/dl vs. a 9.7± 0.8 mg/dl). Discusión: los cambios generales en los niveles séricos de Ca, P, PTH, BUN y creatinina desde el momento del TR a los 3 meses post TR, fueron todos significativos

Introduction: Alterations of bone-mineral metabolism are an important cause of morbidity in patients with kidney transplantation, so the management of long-term transplant patient complications should be followed. The study tries to demonstrate changes in bone and mineral metabolism in patients with chronic renal disease undergoing kidney transplant in the Hospital General Plaza de la Salud during the period January 2010 to August 2018, Santo Domingo, Dominican Republic. Method: Observational, Descriptive, Retrospective and Cross-sectional Study of 131 transplants performed at Hospital General Plaza de la Salud, evaluating changes of calcium (Ca), phosphorus (P) and parathyroid hormone (PTH) before and 3 months post-transplant. Results: The mean age of the patients included was 43.1 ± 13.1 years, 72.51% belonged to the male sex, with a mean time on hemodialysis in months of 27.0 ± 33.6, 60% of the transplants performed were from live donors and 63% from the patients had hypertension as comorbidity. The mean PTH level decreased in the first 3 months after transplantation compared to the pre-transplant (779.6 ± 1004.0 vs 167.9 ± 138.2 pg/ml). Phosphate decreased significantly (4.9 ± 1.6 vs 3.5 ± 0.8) and calcium increased (9.0 ± 1.2 mg / dl vs. 9.7 ± 0.8 mg / dl). Discussion: The general changes in serum levels of Ca, P, PTH, BUN and Creatinine from the time of TR to 3 months post TR were all significant

Doença metabólica óssea em prematuros de muito baixo peso internados em UTI neonatal: ocorrência e fatores associados / Metabolic bone disease in extremely low birth weight premature infants admitted to a neonatal ICU: prevalence and associated factors

Introdução: Recém-nascidos (RN) prematuros de muito baixo peso (MBP) apresentam um risco aumentado de desenvolver doença metabólica óssea (DMO). A realização de suplementação mineral e de triagem para DMO em UTI Neonatal auxilia na prevenção, no diagnóstico e no tratamento desta condição clínica. Objetivos: Avaliar a ocorrência de DMO, a realização de suplementação mineral e de investigação para DMO em prematuros de MBP internados em UTI Neonatal de um Serviço Hospitalar Materno-Infantil de alto risco, vinculado ao SUS. Métodos: Estudo transversal, a partir de dados secundários coletados de prontuários eletrônicos. Foram avaliados os recém-nascidos prematuros de muito baixo peso internados em UTI neonatal. Estudaram-se perfil do recém-nascido, realização da triagem para DMO, ocorrência de DMO, regime alimentar, intercorrências clínicas, uso de suplementação de vitaminas e minerais, idade, peso, sexo, via de parto e Apgar. Resultados: Foram incluídos 112 participantes. A triagem para DMO foi feita em 56 pacientes (50%), com dosagem sérica de fosfatase alcalina, cálcio, fósforo e magnésio séricos. A ocorrência de DMO foi de 8,9% (5 casos). Todos os participantes com DMO apresentaram doença respiratória, quadro infeccioso e estavam recebendo nutrição parenteral. Conclusão: A ocorrência de DMO em recém-nascidos de muito baixo peso internados em UTI neonatal foi de 8,9%, inferior à descrita na literatura. Identificamos como fatores associados à DMO a ocorrência concomitante de doença respiratória, a sepse e o uso de nutrição parenteral.

Introduction: Extremely low birth weight (ELBW) premature infants have an increased risk of developing metabolic bone disease (MBD). The use of mineral supplementation and MBD screening in the neonatal ICU helps prevent, diagnose, and treat this clinical condition. Objectives: To evaluate the occurrence of MBD, as well as the presence of mineral supplementation and MBD screening in premature infants with MBD admitted to the neonatal ICU of a high-risk maternal-child hospital associated with the Brazilian Unified Health System. Methods: This was a cross-sectional study based on secondary data from electronic medical records. We evaluated ELBW premature infants admitted to a neonatal ICU. Infant profile, MBD screening, MBD occurrence, diet, clinical complications, vitamin and mineral supplementation use, age, weight, sex, delivery method, and Apgar score were assessed. Results: We included 112 participants in the study. MBD screening was conducted in 56 patients (50%) with serum levels of alkaline phosphatase, calcium, phosphorus, and magnesium. The rate of MBD occurrence was 8.9% (5 cases). All participants with MBD had respiratory disease, infection, and were receiving parenteral nutrition. Conclusions: The occurrence rate of MBD in ELBW infants admitted to a neonatal ICU was 8,9%, lower than that found in the literature. Factors associated with MBD were the concomitant occurrence of respiratory disease, sepsis, and parenteral nutrition.

Design and application of a new type of fascia stretching cup / 中国针灸

In order to comprehensively stretch human fascia, adjust the biomechanical balance of fascia system and promote the recovery of physiological function of fascia, a new type of fascia stretching cup is designed. This design is composed of two or more silica gel cups and elastic stretching belts between cups. The bottom surface of the silica gel cup has an annular exhaust groove, which can increase the adsorption capacity of the cup to the skin. In the meanwhile, a removable magnet is placed in the groove at the top of each silica gel cup to assist analgesia. This design is suitable for the prevention and treatment of acute and chronic tendon and bone diseases with imbalance of meridians and tendons.

Effects of somatostatin receptor ligands on bone metabolism in acromegaly / 中华内分泌代谢杂志

Objective:To investigate the effect of somatostatin receptor ligands (SRLs) on bone metabolism in patients with acromegaly.Methods:Retrospective analysis of clinical data of acromegaly patients( n=100) received surgery or SRLs alone for 3 months. The changes of growth hormone (GH), insulin-like growth factor-1 (IGF-1), osteocalcin (OC), N-mid fragment of osteocalcin (N-MID), amino-terminal peptide of type I procollagen (P1NP) and C-terminal peptide degradation product of type I collagen(CTX) were compared before and after treatment. Patients were divided into drug treatment group and surgical group according to treatment methods. According to the decline of GH after medication, patients in the drug treatment group were further divided into drug sensitive group and drug insensitive group. Results:The average dynamic GH and IGF-1 indexes in the drug treatment group were significantly decreased after treatment compared with before treatment (both P<0.05), and CTX was also significantly decreased after treatment [1.25 (0.67, 1.40) ng/mL vs 1.34 (0.57, 1.68) ng/mL, P<0.05]. The mean dynamic GH, IGF-1 index, OC, N-MID, P1NP, and CTX in surgical group were significantly decreased after treatment compared with before treatment (all P<0.01). In the surgical group, there was a positive correlation between GH difference (ΔGH) and N-mid difference (ΔN-MID; r=0.454, P=0.026), and there was a positive correlation between IGF-1 index difference (ΔIGF-1 index) and CTX difference (ΔCTX; r=0.339, P=0.036). After treatment, the mean dynamic GH, IGF-1 index, CTX, P1NP, and N-MID in drug treatment group were significantly higher than those in surgical group (all P<0.001). CTX and N-MID decreased significantly after treatment in drug sensitive group compared with drug insensitive group (35.3% vs 7.2%, P<0.001; 24.1% vs 11.8%, P<0.05), and ΔGH was positively correlated with ΔCTX ( r=0.328, P=0.004). Conclusion:SRLs treatment can reduce bone formation marker N-MID and bone resorption marker CTX, improving the high turnover state of bone metabolism in patients with acromegaly, which may attribute to the reduction of GH and IGF-1 levels.

Risk factors of metabolic bone disease associated fracture in very low birth weight infants / 中国新生儿科杂志

Objective:To study the risk factors of metabolic bone disease (MBD) associated fracture in very low birth weight premature infants.Methods:From January 2012 to December 2019, premature infants (gestational age <32 weeks, birth weight <1 500 g) were admitted to our hospital and followed-up regularly for 1.5 years (once every month within first 6 months, then once every 3 months). The infants were assigned into two groups according to X-ray diagnosis: the fracture group and the non-fracture group. The clinical data of the two groups were compared and the risk factors of fracture were analyzed.Results:A total of 62 preterm infants with MBD were included in this study, including 11 in the fracture group and 51 in the non-fracture group. The risk factors of MBD associated fracture included intrauterine growth restriction (IUGR), birth weight <1 000 g, gestational age, respiratory support duration and total parenteral nutrition (TPN) duration ( P<0.05). Logistic regression analysis showed that IUGR ( P<0.05, OR=2.159, 95% CI 1.536~2.759) and TPN duration ( P<0.05, OR=1.143, 95% CI 1.042~1.270) were independent risk factors for fracture. Serum alkaline phosphatase (ALP) in the fracture group was significantly higher than the non-fracture group and 25(OH)VitD was significantly lower than the non-fracture group ( P<0.05). Conclusions:IUGR and TPN duration are risk factors for MBD associated fracture in preterm infants. As biochemical markers of bone metabolism, ALP and 25(OH)VitD levels have clinical value predicting MBD associated fracture.

Beyond Creatinine - A Focus on Mineral Bone Disease

Background:Chronic kidney disease (CKD) is a term that encompasses all degrees of decreased renal function, from damaged–at risk through mild, moderate, and severe chronic kidney failure. CKD is now a public health problem affecting an estimated 10-13% of the world population. The Kidney disease: Improving global outcomes (KDIGO) define CKD as either structural or functional kidney damage or a decreased glomerular filtration rate (GFR) of less than 60 mL/min/1.73 m2 for at least 3 months. CKD-mineral and bone disorder (CKD-MBD) is a broader, newly defined term to define the mineral, bone, hormonal, and calcific cardiovascular abnormalities occurring in CKD. Ours study aims to evaluate the prevalence CKD-MBD in CKD stages 3, 4 and 5. Material And Methods:Ours is a retrospective observational study involving Patients >18 years known cases of CKD as per KDIGO guidelines with a minimum follow up duration of 3 or more months. Result:Our study population had a mean age of 52.8 years with male preponderance (72%). All of the patients had some form of MBD present. Conclusion:Our study was able to demonstrate a very high prevalence of CKD-MBD in patients of CKD indicating a need for better understanding the factors behind MBD in Indian patients and the need to emphasize on preventing and treating MBD in patients.

Cambios Clínicos e Imagenológicos en Terapias no Invasivas en Articulaciones Temporomandibulares con Alteraciones Óseas Degenerativas

RESUMEN: El objetivo del presente estudio fue describir los cambios clínicos e imagenológicos de las terapias no invasivas aplicadas a pacientes con alteraciones óseas degenerativas de las articulaciones temporomandibulares (ATM). Metodología: Se evaluaron 25 pacientes con alteraciones óseas degenerativas de las ATM, sin tratamiento previo de trastornos temporomandibulares (TTM) al momento del diagnóstico. Se realizó tratamiento no invasivo y un año después fueron evaluados según criterios clínicos e imagenológicos DC/TMD y Ahmad. Los resultados fueron presentados por medio de estadística descriptiva, odds ratio con sus respectivos intervalos de confianza, comparaciones de medianas y correlaciones. Se estudiaron 50 ATM, 72 % mujeres (32,2 años promedio). Se observó mejora significativa en los parámetros: dolor (p=0,0001), sinovitis (p=0,001) e incremento de la esclerosis del trabeculado óseo (p=0,051) a un año post-tratamiento. Después de un año del establecimiento de terapias no invasivas en pacientes con alteraciones óseas degenerativas de las ATM, se observaron cambios positivos tanto clínicos como imagenológicos, reduciéndose significativamente la sintomatología dolorosa, limitándose la progresión del daño óseo degenerativo, y observándose recuperación de los casos de sinovitis.

ABSTRACT: The objective of this study was to describe clinical and imaging changes of non-invasive therapies applied to patients with degenerative bone disorders of the temporomandibular joints (TMJ). To carry out this study, 25 patients with degenerative bone disorders of TMJ without previous treatment at the time of diagnosis, were evaluated. Non-invasive treatment was performed and one year later they were evaluated according to clinical and imaging criteria DC/TMD and Ahmad. Results were presented by descriptive statistics, odds ratio, confidence interval, comparisons of means, and correlations. 50 TMJs, 72 % women, (32.2 years mean of age) were studied. Significant improvement was observed in the parameters: pain (p=0.0001), synovitis (p=0.001), and increased sclerosis of the bone trabeculae (p=0,051) at one-year post-treatment. After one year of the establishment of non-invasive therapies in patients with degenerative joint disease of TMJ, it was observed positive changes, both clinical and imaging, reducing painful symptomatology, limiting effect on the progression of degenerative bone damage, and recovery of synovitis cases.

Expert consensus on clinical management of metabolic bone disease of prematurity (2021) / 中国当代儿科杂志

Metabolic bone disease of prematurity (MBDP) is a systemic bone disease with a reduction in bone mineral content due to disorder of calcium and phosphorus metabolism. There is still a lack of in-depth research and systematic understanding of MBDP in China, and there are many irregularities in clinical management of this disease. Based on relevant studies in China and overseas, Grading of Recommendations Assessment, Development and Evaluation was used to develop the expert consensus on the clinical management of MBDP, which provides recommendations from the following five aspects: high-risk factors, screening/diagnosis, prevention, treatment, and post-discharge follow-up of MBDP, so as to provide relevant practitioners with recommendations on the clinical management of MBDP to reduce the incidence rate of MBDP and improve its short- and long-term prognosis.

Primary cilia in hard tissue development and diseases / 医学前沿

Bone and teeth are hard tissues. Hard tissue diseases have a serious effect on human survival and quality of life. Primary cilia are protrusions on the surfaces of cells. As antennas, they are distributed on the membrane surfaces of almost all mammalian cell types and participate in the development of organs and the maintenance of homeostasis. Mutations in cilium-related genes result in a variety of developmental and even lethal diseases. Patients with multiple ciliary gene mutations present overt changes in the skeletal system, suggesting that primary cilia are involved in hard tissue development and reconstruction. Furthermore, primary cilia act as sensors of external stimuli and regulate bone homeostasis. Specifically, substances are trafficked through primary cilia by intraflagellar transport, which affects key signaling pathways during hard tissue development. In this review, we summarize the roles of primary cilia in long bone development and remodeling from two perspectives: primary cilia signaling and sensory mechanisms. In addition, the cilium-related diseases of hard tissue and the manifestations of mutant cilia in the skeleton and teeth are described. We believe that all the findings will help with the intervention and treatment of related hard tissue genetic diseases.

Infecciones piógenas de la columna vertebral / Pyogenic spinal infections

Las infecciones espinales son cuadros clínicos poco frecuentes, que exigen un alto índice de sospecha. La prevalencia de infecciones piógenas de la columna ha ido en aumento, en parte debido al envejecimiento de la población y a un mayor número de pacientes inmunocomprometidos. El estudio imagenológico se puede iniciar con radiografías simples, pero la resonancia magnética es el examen imagenológico de elección, ya que puede dar resultados positivos de forma precoz, entregando información más detallada del compromiso vertebral y tejidos blandos adyacentes. Aunque la clínica y los hallazgos imagenológicos nos pueden orientar, es importante intentar un diagnóstico microbiológico tomando cultivos y muestras para identificar al agente causal antes de iniciar los antibióticos; aunque es óptimo un tratamiento agente-específico, hasta un 25% de los casos queda sin diagnóstico del agente. El tratamiento es inicialmente médico, con antibióticos e inmovilización, pero se debe considerar la cirugía en casos de compromiso neurológico, deformidad progresiva, inestabilidad, sepsis no controlada o dolor intratable. El manejo quirúrgico actual consiste en el aseo y estabilización precoz de los segmentos vertebrales comprometidos. Descartar una endocarditis concomitante y el examen neurológico seriado son parte del manejo de estos pacientes.

Spinal infections are unusual conditions requiring a high index of suspicion for clinical diagnosis. There has been a global increase in the number of pyogenic spinal infections due to an aging population and a higher proportion of immunocompromised patients. The imaging study should start with plain radiographs, but magnetic resonance imaging (mri) is the gold standard for diagnosis. Mri can detect bone and disc changes earlier than other methods, and it provides detailed information on bone and adjacent soft tissues. Blood cultures and local samples for culture and pathology should be obtained, trying to identify the pathogen. According to the result, the most appropriate drug must be selected depending on susceptibility and penetration into spinal tissues. Treatment should start with antibiotics and immobilization; surgery should be considered in cases with neurological impairment, progressive deformity, spine instability, sepsis, or non-controlled pain. Current surgical treatment includes debridement and early stabilization. Practitioners should rule out endocarditis and perform a serial neurological examination managing these patients.

Rickets in white-eared opossums (Didelphis albiventris) / Raquitismo em gambás-de-orelha-branca (Didelphis albiventris)

Two young opossums were necropsied and diagnosed with rickets. This study aims to describe the clinical-pathological aspects of rickets in Didelphis albiventris. Macroscopically, the opossums presented kyphosis and scoliosis, lateral deviation of the limbs in varus, locomotion difficulty, and enlargement with softening of costochondral junctions (rickety rosary). Samples of bones and joints were processed for hematoxylin and eosin staining and Masson's trichrome. Microscopically, we observed thickening of the epiphyseal plate, characterized by irregular and multifocal proliferation of serialized and hypertrophic cartilage zones, which formed circular groups of large, dysplastic chondrocytes towards the spongy zone, often surrounded by non-mineralized osteoid tissue. In the cortical bone, there were pale eosinophilic zones around the Havers channels consistent with non-mineralized osteoid. The staining of Masson's trichrome evidenced the accumulation of osteoid tissue in cortical and trabecular bones. It is possible that a mixed cause of absorption deficiency of vitamin D3 associated with an unbalanced Ca:P diet based on lactose-free milk and fruits may have triggered the disease.(AU)

Dois gambás jovens foram necropsiados e diagnosticados com raquitismo. O objetivo do trabalho é descrever os aspectos clínico-patológicos de raquitismo em Didelphis albiventris. Macroscopicamente os gambás apresentaram cifose e escoliose, desvio lateral dos membros em varus, dificuldade de locomoção e alargamento com amolecimento das junções costocondrais (rosário raquítico). Amostras dos ossos e articulações foram processadas para coloração de hematoxilina e eosina e Tricrômico de Masson. Microscopicamente havia espessamento da placa epifisária, caracterizada pela proliferação irregular e multifocal das zonas de cartilagem seriada e hipertrófica, que formavam grupos circulares de condrócitos grandes, displásicos em direção a zona esponjosa frequentemente cercados por tecido osteoide não mineralizado. No osso cortical haviam zonas eosinofílicas pálidas ao redor dos canais de Havers consistentes com osteoide não mineralizado. A coloração de Tricrômico de Masson evidenciou o acúmulo de tecido osteoide no nosso cortical e trabecular. Acredita-se que uma causa mista de déficit de absorção de vitamina D3 associada a uma dieta desbalanceada em Ca:P a base de leite sem lactose e frutas tenha desencadeado a doença.(AU)

No dejemos morir al hueso: interiorizándonos con los procesos óseos avasculares / Do not let the Bone Die: Interiorizing with the avascular Bone Processes

Resumen El objetivo de este artículo es realizar una revisión de las localizaciones, causas y hallazgos radiológicos específicos de los procesos avasculares óseos. Se define como isquemia ósea a las alteraciones ocasionadas por déficit de irrigación, llevando a la destrucción del hueso. Existen diferencias entre necrosis isquémica e infarto óseo, en base al sitio óseo de afectación. La etiología traumática es la más frecuente y suele ser unilateral. Los sitios de presentación más frecuentes son: cabeza femoral y humeral, rodilla y semilunar. La resonancia magnética (RM) es considerada la modalidad de imagen más sensible y específica, tanto para el diagnóstico temprano como estadificación y control. El conocimiento de las causas, características radiológicas y sus diferentes fases evitan el diagnóstico erróneo de otras etiologías, como las primarias o infecciosas, facilitando un correcto algoritmo terapéutico.

Abstract The aim of this article is to review the locations, causes and specific radiological findings of avascular bone processes. Bone ischemia is defined as the alterations caused by irrigation deficit, leading into the bone destruction. However, there are differences between ischemic necrosis and bone infarction, based on the bone site of involvement. The most frequent etiology is traumatic and is usually unilateral. The most frequent sites of presentation are: femoral and humeral head, knee, and lunate. Magnetic resonance imaging (MRI) is considered the most sensitive and specific imaging modality for early diagnosis, staging and control. The knowledge of the causes, radiological findings and their different phases avoid the erroneous diagnosis of other lesions, such as primary or infectious, facilitating a correct therapeutic algorithm.

Orthotic management with a customized humeral brace for Gorham-Stout disease of the humerus: A case report

@#Gorham-Stout disease is characterized by massive osteolysis or "vanishing bone" on radiograph. Due to its rarity, no standard Physical Medicine and Rehabilitation (PM&R) management has been published. With this comes the dilemma of managing another case of vanishing right humerus in a 13 year-old male, right handed student, with normal growth and development. To date, this could be the third documented case in the Philippines, but the first with humeral involvement, and the first to manage using a customized humeral brace. The absence of the right humerus affects the bimanual overhead and tabletop activities of the patient, for which a custom-made humeral orthosis was provided to manage the limited activities. There were improvements in activities such as writing, card turning, stacking, and lifting objects of variable weights, as well as with hand dexterity as evidenced by the standardized hand function tests done prior and post brace fitting. Being a rare bone disease with no standard management and unpredictable course, cases are managed symptomatically. For this case of an absent humerus significantly affecting upper extremity function, orthotic management is one aspect that could be recommended to achieve positive functional outcomes.

Progress in research on myeloma bone disease / 肿瘤

Myeloma bone disease (MBD) is the most common complication of multiple myeloma (MM). The pathogenesis of MBD is associated with the increase of osteoclast activity and the inhibition of osteoblast function, which seriously affects the quality of life of patients. Normal bone remodeling is maintained by bone cells, osteoclasts and osteoblasts balancing bone formation and bone resorption. A variety of cytokines can affect bone formation and bone resorption by regulating the activity of bone cells, osteoclasts and osteoblasts. Recent studies have reported that the molecules and pathways related to osteoclast activation and osteoblastic inhibition include the receptor activator of nuclear factor-κB ligand/osteoprotegerin pathway, activin-A, Wnt signal inhibitor Dickkopf-1 (DKK1) and sclerostin, etc. These molecules can affect tumor growth and provide the possibility for the development of new drugs and the treatment of MBD and MM. This article reviews the latest progress in the pathogenesis and treatment of MBD.

Extrapulmonary complications of bronchopulmonary dysplasia in premature infants / 中国小儿急救医学

Bronchopulmonary dysplasia(BPD)is a common chronic lung disease that occurs in preterm infants.The infant who with BPD has the feature of small gestational age, low birth weight and immature development of various organ systems.During hospitalization, it is easy to combine with brain injury in premature infant, metabolic bone disease of prematurity, retinopathy of prematurity and cholestasis syndrome, which seriously affect the survival rate and life quality of premature infants.This article reviewed the extrapulmonary complications of BPD in premature infants.

Hypertrophic osteoarthropathy in a sheep / Osteoartropatia hipertrófica em um ovino

ABSTRACT: This research described the radiological, clinical and pathological aspects of hypertrophic osteoarthropathy in a seven-year-old Santa Inês ram. The main clinical features were lameness of the thoracic and pelvic limbs, rigid, cracking and enlarged of the humeroradial, humeroulnar and tibiofemoral joints, cervical spine stiffness, and severe lordosis of the thoracolumbar vertebrae. Dyspnea, nasal discharge and abdominal breathing were also observed. On radiographic examination of the thoracic and pelvic limbs, osteoarthrosis with the formation of osteophyte bridging, intra-articular calcification and periosteum reaction were observed. At necropsy were reported bilateral osteophytosis in the humeroradial, humeroulnar, tibiofemoral and interphalangeal joints, and fusion of the bodies of thoracic vertebrae T5-13 T6 and T12-T13. Microscopically, extensive areas of fibrosis were observed in the lungs and the affected joints were thickened by well demarcated and perpendicular orientated woven and trabecular bone proliferation in the epiphysis. The periosteum was also expanded by fibrous connective tissue that extended into and between the new proliferated bone. Based on these findings, hypertrophic osteoarthropathy, which is an unusual condition in sheep, was diagnosed.

RESUMO: Este trabalho descreve os aspectos radiográficos e clínico-patológicos de um caso de osteoartropatia hipertrófica em um ovino, macho, de sete anos de idade, da raça Santa Inês. Os principais sinais clínicos consistiram em claudicação dos membros torácicos e pélvicos, rigidez, crepitação e aumento das articulações úmero-radio-ulnar e femoro-tibio-patelar, rigidez na coluna cervical e severa lordose das vértebras toracolombares. Dispneia, secreção nasal e respiração abdominal também foram observadas. No exame radiográfico dos membros torácicos e pélvicos, foram observadas osteoartrose com formação de osteófitos em ponte, calcificação intra-articular e reação do periósteo. À necropsia notou-se osteofitose bilateral nas articulações umerorradioulnar, femorotibiopatelar e interfalangiana e fusão dos corpos das vértebras torácicas T5-T6 e T12-T13. Microscopicamente, havia áreas extensivas de fibrose pulmonar e as articulações afetadas encontravam-se expandidas pela proliferação de tecido ósseo recém-formado e trabecular, bem demarcado na epífise. O periósteo também estava expandido por tecido conjuntivo fibroso que se estendia dentro e entre o novo osso proliferado. Com base nestes achados, osteoartropatia hipertrófica, que é uma condição inusual em ovinos, foi diagnosticada.

Rational design of type-IA receptor-derived cyclic peptides to target human bone morphogenic protein 2

Human bone morphogenetic protein 2 (BMP2) is a bone-growth regulatory factor involved in the formation of bone andcartilage, and has been recognized as an attractive therapeutic target for a variety of bone diseases and defects. Here, wereport successful design of a head-to-tail cyclic peptide based on crystal structure to target BMP2. Computational alaninescanning identifies two hotspot regions at the crystal complex interface of BMP2 with its type-IA receptor; promising one isstripped from the interface to derive a linear self-inhibitory peptide RPS2[r78-94] that covers residues 78–94 of the receptorprotein. Dynamics simulation and energetics analysis reveal that the peptide is highly flexible in isolated state and cannotspontaneously bind to BMP2. The RPS2[r78-94] peptide is further extended from its N- and C-termini until reaching twospatially vicinal residues 74 and 98 in the crystal structure of intact BMP2–receptor complex system, consequently resultingin a longer peptide RPS2[r74-98], which is then cyclized in a head-to-tail manner to obtain its cyclic counterpartcycRPS2[r74-98]. Computational analysis suggests that the cyclic peptide can well maintain in a conformation similar withits active conformation in complex crystal structure, exhibiting a smaller disorder and a larger potency than its linearcounterpart. Further assays confirm that the two linear peptides RPS2[r78-94] and RPS2[r74-98] are nonbinders of BMP2,whereas, as designed, the cyclic peptide cycRPS2[r74-98] can bind to BMP2 with a moderate affinity. The cyclic peptide isexpected as a lead molecular entity to develop new and potent peptide-based drugs for BMP2-targeted therapy.