Publications by authors named "Ferriere S"

Hemostasis is a complex process involving the concerted action of molecular and vascular components. Its basic understanding as well as diagnostic and therapeutic aspects have greatly benefited from the use of monoclonal antibodies. Interestingly, camelid-derived single-domain antibodies (sdAbs), also known as VH or nanobodies, have become available during the previous 2 decades as alternative tools in this regard.

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  • The study focuses on developing specific inhibitory single-domain antibodies (VHHs) against protease nexin-1 (PN-1), aiming to overcome the cross-reactivity issues found with existing antibodies that affect both PN-1 and plasminogen activator inhibitor-1 (PAI-1).* -
  • Using phage-display technology, researchers isolated different VHHs, finding some (B11, F06, A08) that bind effectively to both human and murine PN-1 while showing minimal interaction with PAI-1.* -
  • The most promising VHHs were able to restore thrombin activity and effectively inhibit PN-1 activity in plasma, highlighting their potential utility in therapeutic applications without the
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  • Emicizumab, a bispecific antibody, is gaining traction in treating hemophilia A but has been hard to study in vivo due to its specificity for human factors IX and X, limiting research to primate models.
  • Researchers developed a novel mouse model to evaluate emicizumab's function, where FVIII-deficient mice were infused with emicizumab and human FIX and FX before a bleeding test.
  • Results showed that emicizumab reduced blood loss significantly in the mice, although not as effectively as human FVIII concentrate; interestingly, combining it with a low dose of FVIII achieved complete bleeding arrest, suggesting this model is promising for further emicizumab research.
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Background: Activated factor VII (FVIIa) is pertinent to the initiation of blood coagulation. Proteolytic and amidolytic activity of FVIIa are greatly enhanced by its cofactor, tissue factor (TF).

Objective: We aimed to generate a single-domain antibody (sdAb) that recognizes free FVIIa rather than TF-bound FVIIa.

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Replacement therapy has been proven effective in the management of bleedings in haemophilia A. Nevertheless, this approach comes with several shortcomings, like the need for frequent intravenous infusions and the development of neutralizing antibodies in 20 to 30% of the patients with severe haemophilia A replacement. This has led to the development of novel strategies to expand the spectrum of treatment options, some of which are based on antibody technology.

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Objective: To assess whether a novel bedside trolley table set-up decreased inpatient falls (IF) postintervention.

Methods: From December 2012 to December 2014, geriatric patients admitted to our orthopaedic ward with extreme falls risk had a bedside trolley placed between them and a floor sensor mat to give responders more time to prevent IF. Pre- and postintervention falls data was reviewed for falls reduction using falls per month as comparison standard.

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Recent studies have shown that in addition to being major constituents of the atheromatous core, solid cholesterol crystals (CCs) promote atherosclerotic lesion development and rupture by causing mechanical damage and exerting cytotoxic and pro-inflammatory effects. These findings suggest that targeting CCs might represent a therapeutic strategy for plaque stabilization. However, little is known about how cholesterol crystallization is initiated in human atherothrombotic disease.

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Objectives: Total trapeziectomy remains the main surgical treatment of trapeziometacarpal osteoarthritis. Little has been reported on the long-term results of this technique. We report in this study our experience with our technique of trapeziectomy associated with interposition and suspension tendinoplasty using the abductor pollicis longus tendon with 78 months average follow-up.

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Background: Chronic constipation with or without encopresis is often associated with abnormal defecation dynamics evidenced by manometric study and possibly manageable with biofeedback treatment.

Patients And Methods: Twenty-six children more than 5 years of age suffering from constipation with or without encopresis for at least 6 months were treated with biofeedback plus lactulose; 15 of them were also given psychiatric attention. Pressure recordings from the internal and external sphincters in response to transient balloon distension of the rectum were obtained in all patients as did the recto-anal inhibitory reflex and the rectal sensitivity.

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