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Autologous cell membrane coatings on tissue engineering xenografts for suppression and alleviation of acute host immune responses.

Xenogeneic extracellular matrix (ECM) based tissue engineering graft is one of the most promising products for transplantation therapies, which could alleviate the pain of patients and reduce surgery cost. However, in order to put ECM based xenografts into clinical use, the induced inflammatory and immune responses have yet to be resolved. Cell membrane is embedded with membrane proteins for regulation of cell interactions including self-recognition and potent in reducing foreign body rejections. In this study, a novel and facile method for evasion from immune system was developed by coating autologous red blood cell membrane as a disguise on xenogeneic ECM based tissue engineering graft surface. Porcine source Living Hyaline Cartilage Graft (LhCG) and decellularized LhCG (dLhCG) established by our group for cartilage tissue engineering were chosen as model grafts. The cell membrane coating was quite stable on xenografts with no obvious decrease in amount for 4 weeks. The autologous cell membrane coated xenograft has been proved to be recognized as "self" by immune system on cell, protein and gene levels according to the 14-day lasting in vivo study on rats with less inflammatory cells infiltrated and low inflammation-related cytokines gene expression, showing alleviated acute immune and inflammatory responses.

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Erratum to ‘Aberrant Abducent Nerve during Microvascular Decompression for Trigeminal Neuralgia’ [World Neurosurgery 138 (2020), 454-456].

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Physiological and functional responses of water-cooled versus traditional radiofrequency ablation of peripheral nerves in rats.

Several clinical studies have focused on assessing the effectiveness of different radiofrequency ablation (RFA) modalities in pain management. While a direct head-to-head clinical study is needed, results from independent studies suggest that water-cooled RFA (CRFA) may result in longer lasting pain relief than traditional RFA (TRFA). The primary purpose of this study was, therefore, to investigate in a preclinical model, head-to-head differences between the two RFA technologies.

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Effect of low-dose lidocaine on objective upper extremity strength and immediate pain relief following cervical interlaminar epidural injections: a double-blinded randomized controlled trial.

Low-dose lidocaine is a common diluent for analgesia following cervical interlaminar epidural steroid injection (CIESI). Concerns with this practice exist. A single-arm cohort reported that 20% of patients develop postprocedural upper extremity weakness when using lidocaine as a diluent. Furthermore, a high-cervical spinal block with unintended intrathecal or subdural administration is possible.

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Laparoscopic Outcomes after Normal Clinical and Ultrasound Findings in Young Women with Chronic Pelvic Pain: A Cross-Sectional Study.

Chronic pelvic pain (CPP) is one of the most common chronic pain problems experienced by women, with prevalence rates comparable to asthma and back pain. However, it is poorly understood and causative pathology is only seldom found. We aimed to establish prevalence of abnormal findings at diagnostic laparoscopy in young women with CPP after normal findings at clinical examination and pelvic ultrasound scan. Information was retrospectively collected on all laparoscopies undertaken on women aged 16-30 years with normal preoperative findings over a 24-month period. One-hundred-and-fifty women (mean age 25 years and BMI 24.5) were included with laparoscopic examination revealing normal anatomy in 110 (73.3%) and pathology in 40 (27.2%). Endometriosis was detected in 30 (20%); 25 (16.7%) stage 1, 2 (1.3%) stage 2, 2 (1.3%) stage 3 and 1 (0.7%) stage 4. Most laparoscopies carried out on young women with CPP and normal clinical examination and pelvic ultrasound scan showed no significant clinical stigmata of pelvic disease. Women should be fully informed of the multifactorial nature of CPP and there should be a comprehensive management pathway for these women, as proceeding with invasive laparoscopy does not provide additional benefit when investigating CPP in the context of risk, cost and effect on long-term wellbeing.

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Distal Aneurysms of Cerebellar Arteries-Case Series.

(1) Background: Distal aneurysms of cerebellar arteries are very rare. The authors report their case series of distal aneurysms of the cerebellar arteries solved successfully by microsurgery or by endovascular treatment (Table 1) (2) Materials and Methods: Between January 2010 and March 2020, 346 aneurysms were treated in our institution. Eleven aneurysms in seven patients were located on distal cerebellar arteries and, in three patients, the aneurysms were combined with arteriovenous malformations. There were four women and three men, ranging from 50 to 72 years of age. Five patients presented with different grades of subarachnoid hemorrhage or intraventricular bleeding, and two patients were diagnosed because of headache. Aneurysm location was the posterior inferior cerebellar artery in six cases, the superior cerebellar artery in three cases, and the anterior inferior cerebellar artery in 2 cases. One patient had three aneurysms, and two patients had two aneurysms. (3) Results: Nine aneurysms were treated by microsurgery trapping or clipping and, in two patients, the associated arteriovenous malformation (AVM) was resected. Two aneurysms were treated by endovascular coiling, and one associated AVM was successfully embolized. Clinical follow-up was a mean of 11.5 months (range, 3-45 months). (4) Conclusion: The authors present their experience with the treatment of 11 peripheral aneurysms on distal branches of the cerebellar circulation in seven patients which were excluded from circulation by microsurgery or endovascular treatment. In three patients, the associated AVM was treated (two with microsurgery, one with embolization).

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Responding to Maternal Loss: A Phenomenological Study of Older Orphans in Youth-Headed Households in Impoverished Areas of South Africa.

The aim of this study was to explore how older orphans in youth-headed households (YHHs) experience and respond to maternal death and to examine the strategies they employ to care for their younger siblings. We interviewed 18 older orphans who were purposively selected from YHHs located in informal settlements in the City of Tshwane, South Africa. After the death of their mothers, the orphans lost the family home, lost support from their relatives, lost friendships, lost educational opportunities, and lost childhood. The orphans experienced prolonged pain, sadness, anxieties, fear, loneliness despondency, and deep-rooted and persistent anger towards their mother for dying. They suffered from prolonged bereavement because they had been denied the opportunity to mourn the loss of their parents and yearned persistently but silently for their dead mothers. Dropping out of school to seek employment in order to care for their siblings was one of the main coping strategies that older orphans used. However, dropping out of school early robbed them of their future goals of getting an educational qualification. The orphans had not been prepared for taking on an adult role and were given no support or counselling to help them recover from their parents' death. Continuous grief counselling should form an integral component of the psychosocial support services that are provided to orphans soon after the death of a parent.

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Diagnosis at different stages of paracoccidioidomycosis with oral manifestation: Report of two cases.

Paracocciodiomycosis (PCDM) is a chronic systemic fungal infection, mainly affecting residents and rural workers, being characterized by a long incubation period, which it can take months or years without clinical manifestations, making diagnosis late and difficult. Depending on the stage of the disease, it can cause sequelae and low quality of life, so its correct diagnosis is of great importance for the accurate treatment. Therefore, the aim of this report is to present two cases of diagnosis of patients with PCDM at different stages, who developed chronic manifestations, pain, clinical involvement of the oral cavity and in one case also presented lung injury with fibrosis, as well as to weight loss, dysphagia and cachexia. Both of patients were treated with antifungal therapy and it was observed total remission of the lesions and no recurrences were detected.

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Cervical disc arthroplasty migration following mechanical intubation: a case presentation and review of literature.

Cervical arthroplasty has established itself as a safe and efficacious alternative to fusion in management of symptomatic cervical degenerative disease. Recent literature has indicated a trend toward decreased risk of reoperation with cervical arthroplasty and reoperation in this subset commonly occurs secondary to recurrent pain and device related complications. The instance of cervical arthroplasty migration, particularly in the setting of trauma, is particularly rare. Here we report the first case of implant migration secondary to iatrogenic trauma following neck manipulation during direct laryngoscopy for mechanical intubation.

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Trends in Place of Death for Individuals with Deaths Attributed to Advanced Chronic or End-Stage Kidney Disease in the United States.

An important aspect of end-of-life care, place of death is understudied in advanced chronic (CKD) and end-stage kidney disease (ESKD).

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