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1.
Spinal Cord ; 61(1): 51-56, 2023 01.
Article in English | MEDLINE | ID: mdl-36229586

ABSTRACT

STUDY DESIGN: A qualitative, semi-structured interview design. OBJECTIVES: This study aimed to identify, from the perspective of people living with a Spinal Cord Injury (SCI), the primary psychosocial barriers and facilitators that impact on their sexual function and sexual satisfaction post-injury. SETTING: Community-dwelling sample of people with SCI in England, United Kingdom METHODS: Semi-structured interviews with twenty people with SCI (15 males; 5 females) were conducted using an 8-item interview schedule. Inductive thematic analysis was undertaken of verbatim transcripts coded using Braun and Clarke's (2021) six phases of thematic analysis. RESULTS: Six inductive themes were generated, collectively describing the psychosocial barriers and facilitators impacting on sexual function and satisfaction post-SCI: (1) Internalising societal views and stigmatisation; (2) Diminished sexual confidence; (3) Navigating communication; (4) Managing relationship dynamics; (5) Lack of sexual support provision; and (6) Intervention development recommendations. CONCLUSION: Sexual function and satisfaction are highly challenging areas of rehabilitation for males and females living with SCI. Increased efforts are needed to educate others in society to overcome the negative stereotypical attitudes obstructing acceptance of sex despite disability. Countering sexual stigmatisation for people with SCI would facilitate growth in sexual confidence. Techniques to enhance interpersonal sexual communication and involve the partner/spouse in regaining mutual sexual satisfaction are foundational. The current study highlighted key outpatient-based recommendations for intervention development, clarifying primary targets for future SCI-focused sexual therapeutic work.


Subject(s)
Disabled Persons , Spinal Cord Injuries , Male , Female , Humans , Spinal Cord Injuries/rehabilitation , Orgasm , Sexual Behavior , Independent Living , Disabled Persons/psychology
2.
Int J Gynecol Cancer ; 29(1): 48-52, 2019 01.
Article in English | MEDLINE | ID: mdl-30640683

ABSTRACT

OBJECTIVE: To evaluate the incidence and risk factors for mesorectal node metastasis (MRNM) in locally advanced cervical cancer. METHODS/MATERIALS: We performed an observational retrospective cohort study of 122 patients with cervical cancer who received definitive chemo-radiation treatment between December 2013 and June 2017 to evaluate the incidence of MRNM. Three diagnostic radiologists assessed all available pre-treatment images. In this study, the pelvic node metastasis was defined as ≥ 1.0 cm and MRNM as ≥ 0.5 cm for CT and MRI scans and as a maximum standardized uptake value of > 2.5 for PET/CT. The relationship of MRNM with FIGO stage, pelvic node metastasis, and mesorectal fascia involvement was evaluated. RESULTS: The incidence of MRNM in all 122 patients was 8 (6.6%). However, in advanced stage (III- IV) patients, MRNM occurred in 4 of 39 (10.3%) compared with 4 of 83 (4.8%) in early stage (IB1-IIB) patients (p = 0.27). In patients with a positive pelvic node, MRNM occurred in 7 of 55 (12.7%) and 1 of 67 (1.5%) in those with negative pelvic node (p = 0.02). In addition, the incidence of MRNM was 3 of 9 (33.3%) in the presence of mesorectal fascia involvement and 5 of 113 (4.4%) among those without mesorectal fascia involvement (p = 0.013). CONCLUSION: This study indicates that pelvic node metastasis and mesorectal fascia involvement are high-risk factors for MRNM. Therefore, vigilance of reviewing images in the mesorectum for MRNM is necessary for high-risk patients.


Subject(s)
Lymph Nodes/pathology , Rectal Neoplasms/epidemiology , Rectal Neoplasms/secondary , Uterine Cervical Neoplasms/epidemiology , Uterine Cervical Neoplasms/pathology , Adult , Aged , Aged, 80 and over , Chemoradiotherapy , Female , Follow-Up Studies , Humans , Incidence , Lymphatic Metastasis , Middle Aged , Prognosis , Rectal Neoplasms/therapy , Retrospective Studies , United States/epidemiology , Uterine Cervical Neoplasms/therapy , Young Adult
3.
Rehabil Psychol ; 69(3): 239-253, 2024 Aug.
Article in English | MEDLINE | ID: mdl-38386364

ABSTRACT

OBJECTIVES: This study used the behavior change wheel to identify the priority behavioral factors for a tailored intervention to support (re-)engagement in sexual activity following a spinal cord injury (SCI). RESEARCH METHOD/DESIGN: Forty-eight semistructured interviews were conducted with participants from three outpatient/carer/clinician populations in the United Kingdom: people living with SCI, their partners/spouses, and healthcare professionals working in SCI rehabilitation. To identify potential strategies to facilitate (re-)engagement in sexual activity, the behavior change wheel (BCW) and behavior change technique taxonomy Version 1 were applied to code behavior change techniques (BCTs) present in interview transcripts. RESULTS: Six intervention functions, three policy categories, and 21 BCTs were identified as primary targets for interventions to support sexual (re-)engagement post-SCI. Increasing physical-related skills and training would promote physical capability, while sex-related knowledge and the understanding of sex-related health consequences would elevate psychological capability. A supportive healthcare team, alongside peer support and targeted environmental resources about sexual activity/well-being facilitate physical and social opportunities for sex. Motivation to (re-)engage in sexual activity comprised goal-driven reflective motivation to enhance beliefs about capabilities, and automatic motivation via emotional support and reward-based reinforcement. CONCLUSIONS: This study outlines the key BCW and theoretically-derived intervention targets which now provide the foundation for innovative future interventions in SCI and sexual activity. Targeting these highly specific BCTs increases the likelihood that sexual satisfaction can become universally accessible after SCI. (PsycInfo Database Record (c) 2024 APA, all rights reserved).


Subject(s)
Sexual Behavior , Spinal Cord Injuries , Humans , Spinal Cord Injuries/rehabilitation , Spinal Cord Injuries/psychology , Female , Male , Sexual Behavior/psychology , Adult , Middle Aged , United Kingdom , Motivation , Behavior Therapy/methods , Aged
4.
Disabil Rehabil ; : 1-10, 2022 Dec 28.
Article in English | MEDLINE | ID: mdl-36576221

ABSTRACT

PURPOSE: This study explored how partners/spouses of people with Spinal Cord Injury (SCI) experienced intimacy, sexual function, and sexual satisfaction post-SCI. MATERIALS AND METHODS: Qualitative, semi-structured interviews were conducted with the partners/spouses of people with SCI living in the community in the United Kingdom. Twelve participants (7 females; 5 males) were recruited using purposive sampling. A nine-item semi-structured interview design was used. Interviews were transcribed verbatim and analysed via Interpretative Phenomenological Analysis (IPA). RESULTS: Three superordinate themes were demonstrated: (1) Stolen sex through unpreparedness; (2) Redefining sex; and (3) Compromised commitment. Partners struggled to come to terms with the shock of radically altered post-SCI sexual relationships, questioning how their changed sexual relationship and sexual identity conflicted with caring requirements. To minimise post-SCI relationship changes, some partners engaged in strategies to protect against, distract from and avoid sexual intimacy, whereas others were able to retain adapted pre-injury patterns of intimate behaviour. CONCLUSION: Compromised sexual function and satisfaction significantly disrupt relationship dynamics post-SCI, initiate voluntary celibacy, and limit the perceived viability of continued sexual intimacy. Specialist partner-support provisions are urgently needed, recognising that partner support needs are not restricted to the inpatient rehabilitation phase but importantly extend long past discharge into the community.


Sexual function and satisfaction are highly challenging areas for partners post-spinal cord injury (SCI).Support and education for the partner must be incorporated into SCI rehabilitation to help with both adjustment and acceptance to changes in sexual functioning post-SCI.Partner contributions to and experiences of sexual function and satisfaction should be given more value, as these aid in the sustainability of healthy sexual relationships and psychological wellbeing following SCI.

5.
J Rehabil Med ; 54: jrm00298, 2022 Oct 28.
Article in English | MEDLINE | ID: mdl-35797063

ABSTRACT

OBJECTIVE: To explore healthcare professionals' perspectives on the barriers and facilitators impacting provision of support for sexual functioning/satisfaction during spinal cord injury rehabilitation. DESIGN: Qualitative, semi-structured interview design. METHODS: Sixteen healthcare professionals working in spinal cord injury rehabilitation settings were recruited (14 females, 2 males). Semi-structured interviews were conducted using a 9-item interview guide. Interviews were transcribed verbatim and inductively analysed following Braun and Clarke's (2006) 6 phases of thematic analysis. RESULTS: Five inductive themes were generated describing healthcare professional-perceived barriers and facilitators impacting upon care delivery postspinal cord injury: (1) Integrating sexual wellbeing in rehabilitation; (2) Sex-informed multi-disciplinary teams; (3) Acknowledging awkwardness; (4) Enhancing approachability; and (5) Recognizing the partner. CONCLUSION: Sexual functioning and satisfaction are priority areas for rehabilitation, yet they are persistently side-lined in multi-disciplinary team (MDT) rehabilitation agendas. Healthcare professionals do not feel supported to engage with their patients to improve and manage sexual functioning/satisfaction. Ensuring that healthcare professionals are equipped and made aware of sexuality-specific guidelines and operational frameworks, which can be easily interpreted, structured and implemented as a standard part of spinal cord injury rehabilitation is key. This would be instrumental in enabling healthcare professionals to be more informed and comfortable in creating an atmosphere in which sexual topics can be openly discussed to support individuals with spinal cord injury.


Subject(s)
Personal Satisfaction , Spinal Cord Injuries , Male , Female , Humans , Qualitative Research , Health Personnel , Spinal Cord Injuries/rehabilitation , Attitude of Health Personnel
6.
Biochemistry ; 49(43): 9372-84, 2010 Nov 02.
Article in English | MEDLINE | ID: mdl-20925317

ABSTRACT

Helix-coil equilibrium studies are important for understanding helix formation in protein folding, and for helical foldamer design. The quantitative description of a helix using statistical mechanical models is based on experimentally derived helix propensities and the assumption that helix propensity is position-independent. To investigate this assumption, we studied a series of 19-residue Ala-based peptides, to measure the helix propensity for Leu, Phe, and Pff at positions 6, 11, and 16. Circular dichroism spectroscopy revealed that substituting Ala with a given amino acid (Leu, Phe, or Pff) resulted in the following fraction helix trend: KXaa16 > KXaa6 > KXaa11. Helix propensities for Leu, Phe, and Pff at the different positions were derived from the CD data. For the same amino acid, helix propensities were similar at positions 6 and 11, but much higher at position 16 (close to the C-terminus). A survey of protein helices revealed that Leu/Phe-Lys (i, i + 3) sequence patterns frequently occur in two structural patterns involving the helix C-terminus; however, these cases include a left-handed conformation residue. Furthermore, no Leu/Phe-Lys interaction was found except for the Lys-Phe cation-π interaction in two cases of Phe-Ala-Ala-Lys. The apparent high helix propensity at position 16 may be due to helix capping, adoption of a 310-helix near the C-terminus perhaps with Xaa-Lys (i, i + 3) interactions, or proximity to the peptide chain terminus. Accordingly, helix propensity is generally position-independent except in the presence of alternative structures or in the proximity of either chain terminus. These results should facilitate the design of helical peptides, proteins, and foldamers.


Subject(s)
Alanine , Peptides/chemistry , Amino Acid Substitution , Amino Acids , Circular Dichroism , Drug Design , Protein Structure, Secondary
7.
Int J Radiat Oncol Biol Phys ; 103(2): 453-459, 2019 02 01.
Article in English | MEDLINE | ID: mdl-30253235

ABSTRACT

PURPOSE: To assess the local recurrence rate of gross totally resected atypical meningiomas and evaluate for pathologic predictors of recurrence. METHODS AND MATERIALS: All patients meeting the 2016 World Health Organization grade 2 meningioma criteria who received gross total resection were included in this retrospective analysis. A neuropathologist re-reviewed all surgical specimens for the following pathologic factors: brain invasion, macronuclei, necrosis, sheeting architecture, hypercellularity, high nuclear to cytoplasmic ratio, Ki67 proliferative index, mitotic number, and choroid or clear cell histology. Local recurrence and salvage therapy were recorded. RESULTS: Ninety-seven patients met the inclusion criteria and had a median radiographic follow-up of 53 months (range, 3-153). Necrosis was present in 41 specimens (42%), and brain invasion occurred in 30 (31%). Seventy-six patients (78%) had 3 of 5 World Health Organization grade 2 qualifying atypical features. Median mitotic number and Ki67 index were 3 (0-12) and 15 (2%-55%), respectively. Only Ki67 proliferative index and mitotic number predict for local recurrence. The Kaplan-Meier estimate of local recurrence was 30.3% at 3 years. CONCLUSIONS: In this cohort of gross totally resected atypical meningioma followed with observation, local recurrence occurred in 30.3% at 3 years. Ki67 index and mitotic number predict for local failure and could help stratify patients who would benefit from adjuvant therapy.


Subject(s)
Meningeal Neoplasms/diagnosis , Meningeal Neoplasms/surgery , Meningioma/diagnosis , Meningioma/surgery , Neoplasm Recurrence, Local/diagnosis , Adult , Aged , Aged, 80 and over , Cell Nucleus/metabolism , Cytoplasm/metabolism , Female , Humans , Kaplan-Meier Estimate , Male , Meningeal Neoplasms/pathology , Meningioma/pathology , Middle Aged , Mitosis , Necrosis , Neuropathology , Radiotherapy, Adjuvant , Retrospective Studies , Salvage Therapy/methods , Young Adult
8.
J Radiosurg SBRT ; 4(4): 255-263, 2017.
Article in English | MEDLINE | ID: mdl-28626600

ABSTRACT

BACKGROUND: To assess the clinical outcomes in patients with greater than 4 newly diagnosed brain metastases treated with focal stereotactic radiotherapy alone. METHODS: All patients with five or more brain metastases who received focal radiotherapy without whole brain radiation or resection were included in this retrospective analysis. Distant brain failure (DBF), overall survival (OS) and toxicity were reported. RESULTS: Thirty-six patients met inclusion with median clinical follow-up of 6.3 months (range: 1.1, 51.4). Twenty-nine patients received stereotactic radiosurgery (SRS) to a median dose of 20 Gy (16-20), and 7 received fractionated stereotactic radiotherapy (FSRT) to a median dose of 30 Gy (25, 30) in five fractions. The median lesion number and total brain metastases volume was 6 (5, 14) and 1.55 cc (0.12, 32.96), respectively. The Kaplan-Meier estimate of DBF at six-month was 58%, and survival probability at 1 year was 49%. Twenty percent of patients experienced systemic death without CNS relapse. Eight percent experienced grade 3 toxicity with no grade 4 or 5 toxicity. Neither tumor volume nor number predicted DBF. CONCLUSIONS: DBF, OS and treatment toxicity were similar to historical controls with fewer than five metastases treated with focal radiation. Focal stereotactic radiotherapy alone without whole brain RT is a reasonable treatment strategy for five or more brain metastases.

9.
Cureus ; 8(4): e580, 2016 Apr 20.
Article in English | MEDLINE | ID: mdl-27226941

ABSTRACT

INTRODUCTION: Cancer center websites are trusted sources of internet information about treatment options for prostate cancer. The quality of information on these websites is unknown. The objective of this study was to evaluate the quality of information on cancer center websites addressing prostate cancer treatment options, outcomes, and toxicity. MATERIALS AND METHODS: We evaluated the websites of all National Cancer Institute-designated cancer centers to determine if sufficient information was provided to address eleven decision-specific knowledge questions from the validated Early Prostate Cancer Treatment Decision Quality Instrument. We recorded the number of questions addressed, the number of clicks to reach the prostate cancer-specific webpage, evaluation time, and Spanish and mobile accessibility. Correlation between evaluation time and questions addressed were calculated using the Pearson coefficient. RESULTS: Sixty-three websites were reviewed. Eighty percent had a prostate cancer-specific webpage reached in a median of three clicks. The average evaluation time was 6.5 minutes. Information was available in Spanish on 24% of sites and 59% were mobile friendly. Websites provided sufficient information to address, on average, 19% of questions. No website addressed all questions. Evaluation time correlated with the number of questions addressed (R(2) = 0.42, p < 0.001). CONCLUSIONS: Cancer center websites provide insufficient information for men with localized prostate cancer due to a lack of information about and direct comparison of specific treatment outcomes and toxicities. Information is also less accessible in Spanish and on mobile devices. These data can be used to improve the quality and accessibility of prostate cancer treatment information on cancer center websites.

11.
Carbohydr Res ; 343(17): 2924-31, 2008 Nov 24.
Article in English | MEDLINE | ID: mdl-18774127

ABSTRACT

Aminoglycosides are broad-spectrum antibacterials to which some bacteria have acquired resistance. The most common mode of resistance to aminoglycosides is enzymatic modification of the drug by different classes of enzymes including acetyltransferases (AACs). Thus, the modification of aminoglycosides by AAC(2') from Mycobacterium tuberculosis and AAC(3) from Escherichia coli was studied using aminoglycoside microarrays. Results show that both enzymes modify their substrates displayed on an array surface in a manner that mimics their relative levels of modification in solution. Because aminoglycosides that are modified by resistance-causing enzymes have reduced affinities for binding their therapeutic target, the bacterial rRNA aminoacyl-tRNA site (A-site), arrays were probed for binding to a fluorescently labeled oligonucleotide mimic of the A-site after modification. A decrease in binding was observed when aminoglycosides were modified by AAC(3). In contrast, a decrease in binding of the A-site is not observed when aminoglycosides are modified by AAC(2'). Interestingly, these effects mirror the biological functions of the enzymes: the AAC(3) used in this study is known to confer aminoglycoside resistance, while the AAC(2') is chromosomally encoded and unlikely to play a role in resistance. These studies lay a direct foundation for studying resistance to aminoglycosides and can also have more broad applications in identifying and studying non-aminoglycoside carbohydrates or proteins as substrates for acetyltransferase enzymes.


Subject(s)
Acetyltransferases/metabolism , Aminoglycosides/pharmacology , Oligonucleotide Array Sequence Analysis/methods , Aminoglycosides/chemistry , Anti-Bacterial Agents/pharmacology , Bacterial Proteins/drug effects , Bacterial Proteins/metabolism , Carbohydrate Conformation , Drug Resistance, Bacterial , Escherichia coli/enzymology , Models, Molecular , Mycobacterium tuberculosis/enzymology , RNA, Bacterial/drug effects , RNA, Bacterial/metabolism , RNA, Ribosomal/drug effects , RNA, Ribosomal/metabolism , Substrate Specificity , Tobramycin/pharmacology
12.
Biochemistry ; 46(40): 11223-30, 2007 Oct 09.
Article in English | MEDLINE | ID: mdl-17867707

ABSTRACT

Antibiotic resistance is a major threat to human health. Since resistance to the aminoglycoside class of antibiotics is most commonly caused by enzymatic modification, we developed a high-throughput microarray platform for directly assaying resistance enzyme activity on aminoglycosides. After modification, the array can be hybridized with the therapeutic target, a bacterial rRNA A-site mimic, to study the effect that modification has on binding. Such studies will help identify important factors that contribute to high-affinity recognition of therapeutic targets and low-affinity recognition of and modification by resistance enzymes. This platform may also be useful for screening chemical libraries to discover new antibiotics that evade resistance.


Subject(s)
Aminoglycosides/chemical synthesis , Aminoglycosides/pharmacology , Drug Resistance, Bacterial , Adenosine Triphosphate/metabolism , Aminoglycosides/chemistry , Anti-Bacterial Agents/chemical synthesis , Anti-Bacterial Agents/chemistry , Anti-Bacterial Agents/pharmacology , Binding Sites , Carbohydrate Sequence , Escherichia coli/metabolism , Kanamycin/chemical synthesis , Kanamycin/chemistry , Kanamycin/pharmacology , Kanamycin Kinase/metabolism , Microbial Sensitivity Tests/methods , Models, Chemical , Molecular Sequence Data , Molecular Structure , RNA, Ribosomal/metabolism , Reproducibility of Results , Tobramycin/chemical synthesis , Tobramycin/chemistry , Tobramycin/pharmacology
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