Notes

Recollection as a mental requirement for mutual cohesiveness.
The original article has been corrected.PURPOSE Currently, knowledge regarding the intra-articular pathology and its relationship to outcomes after joint-preserving surgery in patients with osteonecrosis of the femoral head (ONFH) is lacking. The purposes were to evaluate the intra-articular pathology and its relationship with outcomes of joint-preserving surgery in ONFH. METHODS We reviewed 41 hips with ONFH in 41 patients (27 women; mean age, 34.9 years old) who underwent intertrochanteric curved varus osteotomy. Radiographic evaluations were based on pre-operative imaging studies, including radiographs, computed tomography (CT), and magnetic resonance imaging (MRI). Intra-articular pathology was evaluated by arthroscopic inspection of the femoral head, labrum, and acetabular cartilage during surgery. In addition, we performed radiographic measurements of the hip, including the collapse of the femoral head and minimal joint space width at three years post-operatively and at final follow-up. RESULTS Arthroscopy revealed damage to the acetabular cartilage and labrum in 22 (54%) and 13 patients (32%), respectively. However, these lesions could be detected on imaging in only 13 (32%) and ten patients (24%), respectively. The change in joint space width after surgery was significantly higher in patients with cartilage degeneration and labral injury (P = 0.02, P = 0.02). Logistic regression analysis for subsequent progression of osteoarthritis showed an association with degenerative changes of articular cartilage and the labral tear as independent predictors (P = 0.001, P = 0.03). CONCLUSIONS Our data demonstrate the presence of labral and acetabular cartilage lesions in ONFH patients, while images do not reveal the full extent of the tissue damage. These intra-articular pathologies can be associated with the outcomes after joint-preserving surgery.AIM OF THE STUDY We assessed the role of personality traits, anxiety, and depression in residual pain among patients who underwent total hip (THA) and knee (TKA) arthroplasty. METHOD Eighty-three patients (40 THA and 43 TKA) were interviewed pre-operatively (t0); five days (t1) after surgery; and one (t2), three (t3), six (t4), and 12 months (t5) after surgery. Ivosidenib price Personality (TCI-R), pain (VAS), anxiety and depression (HADS), quality of life (SF-12), functionality (HHS/KSS), and disability (WOMAC) were evaluated. RESULTS Pain reduction and functional improvement were reported at t5 (both p  30 mm) was noted in 15% of the THA patients and 25% of the TKA patients, and it correlated with the SF-12 PCS (r2 = - 0.412; p  less then  0.001), SF-12 MCS (r2 = - 0.473; p  less then  0.001), HADS-A (r2 = 0.619; p =  less then 0.001), HADS-D (r2 = 0.559; p  less then  0.001), functionality (r2 = - 0.482; p  less then  0.001), and WOMAC (r2 = 0.536; p  less then  0.001) scores at t5. High pre-operative harm avoidance, persistence, and anxiety scores were predictive of residual pain after both THA and TKA (p  less then  0.001). DISCUSSION The proportion of patients complaining of residual pain in this study was similar to that in previous findings. Multiple predictors of residual pain after THA and TKA have been previously described, and several studies evaluated the influence of psychological factors on the outcome of joint arthroplasty; however, only four studies investigated the role of personality traits in the outcome of THA and TKA patients, and a unique study out of these investigations demonstrated the effect of personality on persisting pain. CONCLUSION The current study demonstrated that personality traits and anxiety predict residual pain; thus, pre-operative evaluation of these factors could be helpful in identifying patients at risk for residual pain.A bacterial strain, designated YIM 98839T, was isolated from the hypersaline sediment of Aiding Lake in Xinjiang province, North-West China. The strain was Gram-stain-positive, motile, aerobic, produced oval subterminal or central endospores in swollen sporangia. The whole-cell hydrolysates contain meso-diaminopimelic acid as the diagnostic cell-wall diamino acid. Galactose, fucose and ribose are the major whole-cell sugars. The phospholipids are diphosphatidylglycerol, phosphatidylglycerol and one unknown phospholipid. The predominant menaquinone is MK-7. The major fatty acids are anteiso-C150, anteiso-C170 and iso-C150. The DNA G + C content of the type strain is 37.0 mol%. Phylogenetic analysis indicated that the isolate belongs to the genus Oceanobacillus. However, it differed from its closest relative, Oceanobacillus limi H9BT in many physiological characteristics. Moreover, the DNA-DNA relatedness values between the novel isolate and the relative type strain was 20.2%. Based on comparative analysis of polyphasic taxonomic data, strain YIM 98839T represents a novel species of the genus Oceanobacillus, for which the name Oceanobacillus halotolerans sp. nov. is proposed. The type strain is YIM 98839T (= CGMCC 1.17002T  = KCTC 43140T).The bacteria wall fulfills important physiological functions at the cell, depending on its composition and organization. Many researches focused their studies in understanding the change of its properties not only in strength and permeability, but also in morphological plasticity due to both chemical and physical stresses. In particular, filamentation morphology is a cryptic phenomenon, with involve for great variety of bacteria, which allow them to acquire adaptive benefits. This phenotypic alteration consists of an alteration or lack of cell septation during the cell growth, as consequence of DNA damage or development of stress, such as nutritional factors, antibiotic resistance, low temperature, non-availability of oxygen, high osmolarity, and antimicrobial agents. These cells result in modification of elongation 10-50 times, thickness, chemical composition, and extent of cross-linking of the cell wall polymers than normal-shaped cells. Moreover, the advancement in the morphology engineering permitted the manipulation of the genes encoding the proteins belonging to the plasma membrane or cytoplasm, to have the control over the bacterial shapes and of the its cytoplasmatic environment. In biotechnology application, the intracellular space is primary used for a greater accumulation of secondary products, such as polyhydroxyalkanoates (PHAs). This review provides an insight into environmental induction of filamentation morphology and its use in biotechnological process. KEY POINTS • Environmental stresses inducing filamentation morphology • Morphology engineering in biotechnological processes • Increase of polyhydroxyalkanoates (PHAs) accumulation.
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