Leptin Influences Healing in the Sprague Dawley Rat Fracture Model.

Abstract:

:BACKGROUND Leptin plays a crucial role in bone metabolism, and its level is related to bone callus formation in the fracture repair process. The objective of this study was to evaluate the effect of recombinant leptin on the healing process of femoral fractures in rats. MATERIAL AND METHODS Forty-eight male Sprague Dawley (SD) rats with an average body weight of 389 g (range: 376-398 g) and an average age of 10 weeks were included in this animal research, and all rats were randomly divided into two major groups. Then standardized femur fracture models were implemented in all SD rats. Rats in the control group were treated with only 0.5 mL of physiological saline, and rats in the experimental group were treated with recombinant leptin 5 μg/kg/d along with the same 0.5 mL of physiological saline for 42 days intraperitoneally. At the same time, each major group was evenly divided into three parallel subgroups for each parallel bone evaluation separately at the second, fourth, and sixth weeks. Each subgroup included eight rats. RESULTS The total radiological evaluation results showed that the healing progress of femoral fracture in the experimental group was superior to that in the control group from the fourth week. At the sixth week, experimental group rats began to present significantly better femoral fracture healing progress than that of the control group rats. Results of biomechanics show the ultimate load (N) and deflection ultimate load (mm) of the experimental group rats was significantly increased compared with that of the control group rats from the fourth week. CONCLUSIONS Our results suggest that leptin may have a positive effect on SD rat femur fracture healing.

journal_name

Med Sci Monit

authors

Liu P,Cai M

doi

10.12659/msm.899259

subject

Has Abstract

pub_date

2017-01-15 00:00:00

pages

258-265

eissn

1234-1010

issn

1643-3750

pii

899259

journal_volume

23

pub_type

杂志文章
  • Diosmetin Suppresses Neuronal Apoptosis and Inflammation by Modulating the Phosphoinositide 3-Kinase (PI3K)/AKT/Nuclear Factor-κB (NF-κB) Signaling Pathway in a Rat Model of Pneumococcal Meningitis.

    abstract::Bacterial meningitis has a high mortality rate and can be challenging to diagnose and manage. This study aimed to evaluate the effect of diosmetin in a rat model of Streptococcus pneumoniae meningitis and to investigate the mechanism of action. Forty rats included a treatment group (n=30) that underwent intracisternal...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:10.12659/MSM.911860

    authors: Zhang Y,Jiang Y,Lu D

    更新日期:2019-03-27 00:00:00

  • Usefulness of magnetic resonance imaging as a prognostic variable in myelodysplastic syndromes.

    abstract:BACKGROUND:Myelodysplastic syndromes are clonal disorders of stem cells, characterized by heterogeneous clinical presentation. Hematopoiesis is ineffective, characterized by abnormal differentiation, maturation and survival of hematopoietic cells. MATERIAL AND METHODS:The examinations were conducted in the Hematology ...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:10.12659/MSM.890978

    authors: Ziółko E,Kwiatkowska-Pamuła A,Adamczyk T,Walecki J,Muc-Wierzgoń M

    更新日期:2014-09-13 00:00:00

  • A prospective study using color flow duplex ultrasonography for abdominal perforator mapping in microvascular breast reconstruction.

    abstract:BACKGROUND:Abdominally based perforator free flaps are commonly used in reconstructive breast surgery. Pre-operative assessment using a variety of imaging techniques has become increasingly popular to assess the anatomy of the abdominal perforators. We hypothesize that color flow duplex ultrasonography is a reliable me...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:

    authors: Seidenstucker K,Munder B,Richrath P,Rybacki C,Horch RE,Beier JP,Andrews BT,Andree C

    更新日期:2010-08-01 00:00:00

  • Epigallocatechin Gallate Attenuates Hip Fracture-Induced Acute Lung Injury by Limiting Mitochondrial DNA (mtDNA) Release.

    abstract::BACKGROUND To study the protective effects and explore the mechanism of epigallocatechingallate (EGCG) on the hip fracture-induced acute lung injury. MATERIAL AND METHODS Thirty male Sprague-Dawley (SD) rats were randomly divided into the control group, hip fracture group, and hip fracture + EGCG (10 mg/Kg) group. Aft...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:10.12659/msm.902477

    authors: Zhao XD,Liu H,Li T,Gong Q,Zhang WL

    更新日期:2017-07-12 00:00:00

  • In utero surgery - current state of the art: part I.

    abstract:BACKGROUND:Fetal surgery, also referred to as in utero, prenatal or intrauterine surgery, consists of treatment of congenital malformations during fetal period. The idea of treating malformations diagnosed in the course of intrauterine life dates back to 1963, when Lilly performed first blood transfusion in the fetus. ...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 历史文章,杂志文章,评审

    doi:

    authors: Wójcicki P,Drozdowski P

    更新日期:2010-11-01 00:00:00

  • Doxorubicin-Induced Cancer Cell Senescence Shows a Time Delay Effect and Is Inhibited by Epithelial-Mesenchymal Transition (EMT).

    abstract::BACKGROUND Senescence is a natural barrier for the body to resist the malignant transformation of its own cells. This work investigated the senescence characteristics of cancer cells in vitro. MATERIAL AND METHODS Human cervical cancer HeLa cells were treated with different concentrations of doxorubicin for 3 days, wi...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:10.12659/MSM.914295

    authors: Hu X,Zhang H

    更新日期:2019-05-16 00:00:00

  • Androgen Receptor Is Inactivated and Degraded in Bladder Cancer Cells by Phenyl Glucosamine via miR-449a Restoration.

    abstract::BACKGROUND Bladder cancer caused by exposure to aniline dyes, chronic cystitis, and smoking is detected in approximately 70 000 new cases annually. In the USA alone, it leads to 15 000 deaths every year. In the present study, we investigated the role of 3-((4'-amino-[1,1'-biphenyl]-4-yl)amino)-4-bromo-5-oxo-2,5-dihydr...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:10.12659/msm.906836

    authors: Guo J,Hu J,Cao R,Chen Q,Li K

    更新日期:2018-04-16 00:00:00

  • Acute and diffuse postoperative bleeding after free latissimus dorsi flap--Factor XIII deficiency: a case report and review of the literature.

    abstract:BACKGROUND:Factor XIII deficiency is a rare inherited bleeding disorder that is often difficult to diagnose. As there are no standard screening tests established patients with Factor XIII deficiency are not correctly identified. Especially postoperative bleeding and haemorrhage after difficult plastic reconstructive op...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章,评审

    doi:

    authors: Dragu A,Bach AD,Leffler M,Unglaub F,Horch RE

    更新日期:2009-01-01 00:00:00

  • Short Implants and Conventional Implants in The Residual Maxillary Alveolar Ridge: A 36-Month Follow-Up Observation.

    abstract::BACKGROUND Short dental implants are considered an alternative method of treatment to the maxillary sinus elevation and bone augmentation procedure at the sites of a reduced alveolar ridge height. The aim of the study was to determine the most effective therapeutic approach for a single tooth replacement in a reduced ...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:10.12659/MSM.910404

    authors: Hadzik J,Krawiec M,Kubasiewicz-Ross P,Prylińska-Czyżewska A,Gedrange T,Dominiak M

    更新日期:2018-08-14 00:00:00

  • Preliminary evaluation of the capacity of surface-active phospholipids to provide semipermeability in a saline filtration environment.

    abstract:BACKGROUND:Semipermeability to fluid transport is one of the principal attributes of a tissue like articular cartilage. Consequently, this characteristic can be exploited in attempts to understand the functional roles of the biological layer of Surface Active Phospholipids (SAPL) which form on its surfaces. A previous ...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:

    authors: Chen Y,Crawford RW,Oloyede A

    更新日期:2007-04-01 00:00:00

  • White blood cell scintigraphy in the diagnosis of infection of endovascular prostheses within the first month after implantation.

    abstract:BACKGROUND:99mTc-HMPAO-labeled leukocyte scintigraphy (WBCs) is useful in the diagnosis of vascular graft infection. However, false positives can occur in the early postoperative period. There are no data concerning the usefulness of WBCs in detecting endovascular prosthesis infection during this period. The aim of our...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:

    authors: Liberatore M,Misuraca M,Calandri E,Rizzo L,Speziale F,Iurilli AP,Anagnostou C

    更新日期:2006-03-01 00:00:00

  • Myricetin Prevents Cataract Formation by Inhibiting the Apoptotic Cell Death Mediated Cataractogenesis.

    abstract::BACKGROUND The current research work aimed to explore the protective role of myricetin against cataractogenesis in humans, in terms of its anti-apoptotic potential. MATERIAL AND METHODS Human eye lens epithelial cells were exposed to oxidative stress by treating with hydrogen peroxide (H₂O₂). The levels of superoxide ...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:10.12659/MSM.922519

    authors: Yang Y,Xu X,Liu Q,Huang H,Huang X,Lv H

    更新日期:2020-04-26 00:00:00

  • Spatial and Translational Regulation of Exocyst Subunits by Cell Cycle in Budding Yeast.

    abstract::BACKGROUND Previous studies have shown that exocyst complex is located at polarized growth sites at different cell cycle stages in budding yeast. But how cell cycle and the cyclin-dependent kinase, Cdk1, regulate the distribution of exocyst complex on the plasma membrane and the protein level of each exocyst subunit i...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:10.12659/MSM.914194

    authors: Zhang T,Sun D,Luo G,Liu Y

    更新日期:2019-05-31 00:00:00

  • Respiratory failure due to bilateral diaphragm palsy as an early manifestation of ALS.

    abstract:BACKGROUND:Diaphragm palsy is common in the advanced stages of motor neuron disease and is a primary cause of fatal outcome However, respiratory failure is a presenting symptom of motor neuron disease in only a small number of patients. CASE REPORT:We present the case of a patient with dyspnea and orthopnea followed b...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:

    authors: Czapliński A,Strobel W,Gobbi C,Steck AJ,Fuhr P,Leppert D

    更新日期:2003-05-01 00:00:00

  • A Retrospective Study of Atrial Fibrillation Following Cavotricuspid Isthmus Ablation for Atrial Flutter.

    abstract::BACKGROUND Catheter radiofrequency ablation for typical atrial flutter is considered to be safe and effective. However, atrial fibrillation (AF) following cavotricuspid isthmus ablation for atrial flutter has been reported in patients without a previous history of AF, which has implications for the decision to use ora...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:10.12659/MSM.912918

    authors: Warchoł I,Bińkowski BJ,Kucejko T,Sobiczewska J,Lubiński A

    更新日期:2019-05-05 00:00:00

  • Inherited antithrombin deficiency and end stage renal disease.

    abstract::Antithrombin is a potent inhibitor of the coagulant effect of thrombin. In the latter half of 20th century, many families have been described in which an autosomaly dominant inherited antithrombin deficiency has caused severe venous thromboembolic disease in successive generations. The important complication is severe...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章,评审

    doi:

    authors: Hara T,Naito K

    更新日期:2005-11-01 00:00:00

  • Different factors are responsible for predicting relapses after primary tumors resection and for imatinib treatment outcomes in gastrointestinal stromal tumors.

    abstract:BACKGROUND:The development of accurate diagnostic methods in gastrointestinal stromal tumors (GISTs) and the introduction of imatinib (IM) therapy has focused attention on the factors influencing the prognosis of patients with primary lesions as well as of patients with advanced disease treated with imatinib. MATERIAL...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:

    authors: Rutkowski P,Debiec-Rychter M,Nowecki ZI,Wozniak A,Michej W,Limon J,Siedlecki JA,Jerzak Vel Dobosz A,Grzesiakowska U,Nasierowska-Guttmejer A,Sygut J,Nyckowski P,Krawczyk M,Ruka W

    更新日期:2007-11-01 00:00:00

  • Methylene blue: an effective treatment for contrast medium-induced anaphylaxis.

    abstract:BACKGROUND:The purpose of this paper is to propose methylene blue as a lifesaving alternative drug for the treatment of contrast-induced anaphylaxis. CASE REPORT:In a cardiovascular catheterization laboratory invasive hemodynamic monitoring was used to document the lifesaving effect of IV bolus injections of 1.5-2 mg/...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:

    authors: Oliveira Neto AM,Duarte NM,Vicente WV,Viaro F,Evora PR

    更新日期:2003-11-01 00:00:00

  • Contemporary treatment of ductal carcinoma in situ of the breast.

    abstract::The main controversies surrounding the management of DCIS evolve around the need for adjuvant radiotherapy (RT) after adequate local excision (LE) of localized lesions and the role of adjuvant endocrine therapy. All randomized controlled trials (RCTs) examining the role of adjuvant RT and tamoxifen after LE were revie...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章,评审

    doi:

    authors: Mokbel K

    更新日期:2005-03-01 00:00:00

  • Pain, immunity, opiate and opioid compounds and health.

    abstract::We surmise that opioid peptides, i.e., methionine enkephalin, first arose during evolution as modulators of cellular immune function given their immune actions and the presence of enkelytin, a potent antibacterial peptide, and its precursor proenkephalin in animals 500 million years divergent in evolution. Pain probab...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章,评审

    doi:

    authors: Stefano GB,Fricchione G,Goumon Y,Esch T

    更新日期:2005-05-01 00:00:00

  • Comparison of T Helper Cell Patterns in Primary Open-Angle Glaucoma and Normal-Pressure Glaucoma.

    abstract::BACKGROUND HSP60-related immunological activities are found in normal-pressure glaucoma (NPG) patients, in whom an elevated intraocular pressure (IOP) found in primary open-angle glaucoma (POAG) is not observed. HSP60 was found in POAG and NPG patients, while anti-HSP60 level was mainly found to be higher in NPG patie...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:10.12659/msm.904923

    authors: Guo C,Wu N,Niu X,Wu Y,Chen D,Guo W

    更新日期:2018-04-04 00:00:00

  • Direct MRI fistulography with hydrogen peroxide in patients with recurrent perianal fistulas: a new proposal of extended diagnostics.

    abstract:BACKGROUND:Perianal fistulas are malformations of the anorectal area. Accurate preoperative assessment of perianal fistula tract is a main assumption in diagnosis of the disease, affecting the operation efficiency. The aim of the study was to present our experience in application of a new diagnostic protocol based on t...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:10.12659/MSM.891232

    authors: Waniczek D,Adamczyk T,Arendt J,Kluczewska E

    更新日期:2015-02-10 00:00:00

  • Comparison of N-epsilon-(Carboxymethyl)Lysine levels and percentage of eosinophils in induced sputum for assessment of small airway involvements in asthma.

    abstract:BACKGROUND:N-epsilon-(Carboxymethyl)Lysine (CML), a major advanced glycation end product, is expressed in the lower respiratory tract. In this study, we compared the validity of measuring CML levels and percentage of eosinophils in induced sputum for assessment of airway functions, and evaluated the clinical implicatio...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 临床试验,杂志文章

    doi:

    authors: Kyoh S,Kanazawa H,Tochino Y,Kodama T,Asai K,Hirata K

    更新日期:2008-07-01 00:00:00

  • Relative Computed Tomography (CT) Enhancement Value for the Assessment of Microvascular Architecture in Renal Cell Carcinoma.

    abstract::BACKGROUND To investigate the correlation between the relative computed tomography (CT) enhancement value and the microvascular architecture in different pathologic subtypes of renal cell carcinoma (RCC). MATERIAL AND METHODS This retrospective study included 55 patients with pathologically confirmed RCC. Immunohistoc...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:10.12659/msm.902957

    authors: Ouyang AM,Wei ZL,Su XY,Li K,Zhao D,Yu DX,Ma XX

    更新日期:2017-07-31 00:00:00

  • Comparing Single Versus Double Screw-Rod Anterior Instrumentation for Treating Thoracolumbar Burst Fractures with Incomplete Neurological Deficit: A Prospective, Randomized Controlled Trial.

    abstract::BACKGROUND Following a thoracolumbar burst fracture (TCBF), anterior screw-rods apply pressure upon the graft site. However, there is limited evidence comparing single screw-rod anterior instrumentation (SSRAI) to double screw-rod anterior instrumentation (DSRAI) for TCBFs. Our objective was to compare SSRAI versus DS...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章,随机对照试验

    doi:10.12659/msm.898347

    authors: Yu Y,Wang J,Shao G,Wang Q,Li B

    更新日期:2016-05-19 00:00:00

  • Sulfonylurea receptor gene 16-3 polymorphism - association with sulfonylurea or insulin treatment in type 2 diabetic subjects.

    abstract:BACKGROUND:The presence of a complex phenotype of type 2 diabetes results from impaired insulin secretion and action, whereas the mechanism of action of sulfonylurea derivatives, most commonly used in the treatment of type 2 diabetes, is based on their ability to directly inhibit the ATP-sensitive potassium channel (KA...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:

    authors: Zychma MJ,Gumprecht J,Strojek K,Grzeszczak W,Moczulski D,Trautsolt W,Karasek D

    更新日期:2002-07-01 00:00:00

  • Incarcerated Spigelian hernia: a case report.

    abstract:BACKGROUND:Spigelian hernia is a rare partial abdominal wall defect in the transversus abdominus aponeurosis or Spigelian fascia. We here report the case of a patient with incarcerated greater omentum in a Spigelian hernia. CASE REPORT:The patient presented with a six-hour history of nausea, constant abdominal pain, a...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:

    authors: Zacharakis E,Papadopoulos V,Ganidou M,Zacharakis E

    更新日期:2006-07-01 00:00:00

  • General anaesthesia for laparascopic adrenalectomy.

    abstract::Surgical treatment of adrenal disorders is increasingly performed under laparascopic approach. Both pneumoperitoneum and adrenal tumour manipulation may induce haemodynamic variations. The aim of this study was to compare the inhalational and intravenous anaesthetic management for laparascopic adrenalectomy. Between 1...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:

    authors: Darvas K,Pinkola K,Borsodi M,Tarjányi M,Winternitz T,Horányi J

    更新日期:2000-05-01 00:00:00

  • miRNA143 Induces K562 Cell Apoptosis Through Downregulating BCR-ABL.

    abstract::BACKGROUND Leukemia seriously threats human health and life. MicroRNA regulates cell growth, proliferation, apoptosis, and cell cycle. Whether microRNA could be treated as a target for leukemia is still unclear and the mechanism by which microRNA143 regulates K562 cells needs further investigation. MATERIAL AND METHOD...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:10.12659/msm.895833

    authors: Liang B,Song Y,Zheng W,Ma W

    更新日期:2016-08-05 00:00:00

  • Influence of 12-week exercise training on fat mass percentage in adolescents with Down syndrome.

    abstract:BACKGROUND:Current findings suggest that more attention needs to be given to the increase in body mass achieved by disabled populations, especially by individuals with mental retardation, to minimize long-term negative health consequences. Accordingly, it would be of interest to design adequate strategies based on phys...

    journal_title:Medical science monitor : international medical journal of experimental and clinical research

    pub_type: 杂志文章

    doi:

    authors: Ordonez FJ,Rosety M,Rosety-Rodriguez M

    更新日期:2006-10-01 00:00:00